diff --git a/Makefile b/Makefile --- a/Makefile +++ b/Makefile @@ -10,27 +10,34 @@ # GHC= ghc GHCINCS= -ighc -isrc -GHCWARNS= -Wall -Wno-unrecognised-warning-flags -Wno-x-partial +GHCWARNS= -Wall -Wno-unrecognised-warning-flags -Wno-x-partial -Wno-deprecations GHCOPTS= -O GHCEXTS= -DNOTCABAL -XScopedTypeVariables -XPatternGuards -XTupleSections -XTypeSynonymInstances -XFlexibleInstances -XOverloadedRecordDot -XDisambiguateRecordFields -XOverloadedStrings # -XOverloadedRecordUpdate -GHCPKGS= #-package mtl -package pretty -package temporary -package process +GHCPKGS= -package mtl -package pretty -package haskeline -package process -package time -package ghc-prim -package containers -package deepseq -package directory GHCTOOL= # -F -pgmF Tools/convertX.sh GHCOUTDIR= ghc-out GHCOUT= -outputdir $(GHCOUTDIR) GHCPROF= # -prof -fprof-late #-prof -fprof-auto GHCFLAGS= $(GHCEXTS) $(GHCINCS) $(GHCWARNS) $(GHCOPTS) $(GHCTOOL) $(GHCPKGS) $(GHCOUT) $(GHCPROF) # +MHSINC= -i -isrc -ilib -ilib/simple-readline +# .PHONY: clean bootstrap install ghcgen newmhs cachelib timecompile exampletest cachetest runtest runtestmhs everytest everytestmhs nfibtest info all: bin/mhs bin/cpphs -newmhs: ghcgen +targets.conf: + echo [default] > targets.conf + echo cc = \"$(CC)\" >> targets.conf + echo conf = \"$(CONF)\" >> targets.conf + +newmhs: ghcgen targets.conf $(CCEVAL) generated/mhs.c -o bin/mhs $(CC) $(CCWARNS) -g -Isrc/runtime src/runtime/eval-$(CONF).c $(CCLIBS) generated/mhs.c -o bin/mhsgdb # Compile mhs from distribution, with C compiler -bin/mhs: src/runtime/*.c src/runtime/*.h #generated/mhs.c +bin/mhs: src/runtime/*.c src/runtime/*.h targets.conf #generated/mhs.c @mkdir -p bin $(CCEVAL) generated/mhs.c -o bin/mhs @@ -62,10 +69,10 @@ # Generate distribution C file generated/mhs.c: bin/mhs src/*/*.hs @mkdir -p generated - bin/mhs -z -isrc MicroHs.Main -ogenerated/mhs.c + bin/mhs -z $(MHSINC) MicroHs.Main -ogenerated/mhs.c ghcgen: bin/gmhs src/*/*.hs lib/*.hs lib/*/*.hs lib/*/*/*.hs - bin/gmhs -isrc MicroHs.Main -ogenerated/mhs.c + bin/gmhs $(MHSINC) MicroHs.Main -ogenerated/mhs.c # Make sure boottrapping works bootstrap: bin/mhs-stage2 @@ -77,14 +84,14 @@ bin/mhs-stage1: bin/mhs src/*/*.hs @mkdir -p generated @echo "*** Build stage1 compiler, using bin/mhs" - bin/mhs -z -isrc MicroHs.Main -ogenerated/mhs-stage1.c + bin/mhs -z $(MHSINC) MicroHs.Main -ogenerated/mhs-stage1.c $(CCEVAL) generated/mhs-stage1.c -o bin/mhs-stage1 # Build stage2 compiler with stage1 compiler, and compare bin/mhs-stage2: bin/mhs-stage1 src/*/*.hs @mkdir -p generated @echo "*** Build stage2 compiler, with stage1 compiler" - bin/mhs-stage1 -z -isrc MicroHs.Main -ogenerated/mhs-stage2.c + bin/mhs-stage1 -z $(MHSINC) MicroHs.Main -ogenerated/mhs-stage2.c cmp generated/mhs-stage1.c generated/mhs-stage2.c @echo "*** stage2 equal to stage1" $(CCEVAL) generated/mhs-stage2.c -o bin/mhs-stage2 @@ -107,13 +114,13 @@ # timecompile: bin/mhs - time bin/mhs +RTS -v -RTS -isrc MicroHs.Main + time bin/mhs +RTS -v -RTS $(MHSINC) MicroHs.Main # timecachecompile: bin/mhs @-rm -f .mhscache time bin/mhs +RTS -v -RTS -CW AllOfLib - time bin/mhs +RTS -v -RTS -CR -isrc MicroHs.Main + time bin/mhs +RTS -v -RTS -CR $(MHSINC) MicroHs.Main # cachelib: @@ -122,7 +129,7 @@ # clean: - rm -rf src/*/*.hi src/*/*.o *.comb *.tmp *~ bin/* a.out $(GHCOUTDIR) tmp/* Tools/*.o Tools/*.hi dist-newstyle generated/*-stage* .mhscache + rm -rf src/*/*.hi src/*/*.o *.comb *.tmp *~ bin/* a.out $(GHCOUTDIR) tmp/* Tools/*.o Tools/*.hi dist-newstyle generated/*-stage* .mhscache targets.conf .mhscache make clean -f Makefile.emscripten cd tests; make clean @@ -133,6 +140,7 @@ mkdir -p $(PREFIX)/lib/mhs/src/runtime cp -r lib $(PREFIX)/lib/mhs cp src/runtime/* $(PREFIX)/lib/mhs/src/runtime + cp targets.conf $(PREFIX)/lib/mhs/targets.conf @echo "***" @echo "*** Installation complete" @echo "*** Set environment variable MHSDIR to $(PREFIX)/lib/mhs" @@ -146,8 +154,8 @@ cd tests; make MHS=../bin/mhs cache; make MHS="../bin/mhs +RTS -H4M -RTS -CR" info test bootcombtest: bin/gmhs bin/mhseval - bin/gmhs -isrc -ogmhs.comb MicroHs.Main - bin/mhseval +RTS -v -rgmhs.comb -RTS -isrc -omhs.comb MicroHs.Main + bin/gmhs $(MHSINC) -ogmhs.comb MicroHs.Main + bin/mhseval +RTS -v -rgmhs.comb -RTS $(MHSINC) -omhs.comb MicroHs.Main cmp gmhs.comb mhs.comb exampletest: bin/mhs bin/mhseval Example.hs @@ -162,11 +170,11 @@ rm -f .mhscache bin/mhs -CW AllOfLib bin/mhs -CR Example && bin/mhseval - bin/mhs +RTS -v -RTS -isrc -CR MicroHs.Main + bin/mhs +RTS -v -RTS $(MHSINC) -CR MicroHs.Main rm -f .mhscache nfibtest: bin/mhs bin/mhseval bin/mhs -itests Nfib && bin/mhseval -emscripten: bin/mhs +emscripten: bin/mhs targets.conf make test -f Makefile.emscripten diff --git a/MicroHs.cabal b/MicroHs.cabal --- a/MicroHs.cabal +++ b/MicroHs.cabal @@ -1,6 +1,6 @@ cabal-version: 3.0 name: MicroHs -version: 0.9.8.0 +version: 0.9.11.0 synopsis: A compiler for Haskell license: Apache-2.0 license-file: LICENSE @@ -39,9 +39,8 @@ executable mhs default-language: Haskell98 - hs-source-dirs: ghc src ghc-options: -Wall -Wno-unrecognised-warning-flags -Wno-x-partial -main-is MicroHs.Main - -fwrite-ide-info + -fwrite-ide-info -Wno-deprecated -Wno-deprecations main-is: MicroHs/Main.hs default-extensions: ScopedTypeVariables PatternGuards TypeSynonymInstances MultiParamTypeClasses FlexibleInstances BangPatterns @@ -63,13 +62,16 @@ MicroHs.Instances MicroHs.Interactive MicroHs.Lex + MicroHs.List MicroHs.MakeCArray + MicroHs.Package MicroHs.Parse MicroHs.StateIO MicroHs.SymTab MicroHs.TCMonad MicroHs.Translate MicroHs.TypeCheck + MicroHs.TargetConfig Text.ParserComb System.Console.SimpleReadline Data.Double @@ -78,10 +80,13 @@ PrimTable System.IO.MD5 System.IO.Serialize + System.IO.TimeMilli System.Compress Paths_MicroHs autogen-modules: Paths_MicroHs - build-depends: base >= 4.10 && < 4.20, + if impl(ghc) + hs-source-dirs: ghc src + build-depends: base >= 4.10 && < 4.22, containers >= 0.5 && < 0.8, deepseq >= 1.1 && < 1.6, ghc-prim >= 0.5 && < 0.12, @@ -90,4 +95,8 @@ time >= 1.1 && < 1.15, pretty >= 1.0 && < 1.2, process >= 1.6 && < 1.8, - directory >= 1.2 && < 1.5 + directory >= 1.2 && < 1.5, +-- Cabal does not recognize mhs as a valid compiler +-- (there is a pull request from Apr 9 to make it so). +-- if impl(mhs) +-- hs-source-dirs: src lib lib/simple-readline diff --git a/README.md b/README.md --- a/README.md +++ b/README.md @@ -16,7 +16,7 @@ This happens by GHC looking in the `ghc/` subdirectory first for any extras/overrides. Compiling MicroHs is really best done using `make`, but there is also a `MicroHs.cabal` file -for use with `cabal`. This only builds what corresponds to the first target. +for use with `cabal`/`mcabal`. This only builds what corresponds to the first target. Doing `cabal install` will install the compiler. Note that `mhs` built with ghc does not have all the functionality. @@ -36,11 +36,11 @@ Differences: * There is only deriving for `Bounded`, `Enum`, `Eq`, `Ord`, `Show`, and `Typeable`. - * The `default` list is empty, except in the interactive system. * Kind variables need an explicit `forall`. * Always enabled extension: * BangPatterns * ConstraintKinds + * DoAndIfThenElse * DuplicateRecordFields * EmptyDataDecls * ExistentialQuantification @@ -49,6 +49,8 @@ * FlexibleInstance * ForeignFunctionInterface * FunctionalDependencies + * GADTs + * GADTsyntax * IncoherentInstances * KindSignatures * MonoLocalBinds @@ -80,6 +82,8 @@ * Lazy patterns (`~pat`) are ignored. * More differences that I don't remember right now. +Mutually recursive modules are allowed the same way as with GHC, using `.hs-boot` files. + ## Example The file `Example.hs` contains the following: ```Haskell @@ -130,7 +134,8 @@ ### Compiler flags * `--version` show version number -* `-iDIR` add `DIR` to search path for modules +* `-i` set module search path to empty +* `-iDIR` append `DIR` to module search path * `-oFILE` output file. If the `FILE` ends in `.comb` it will produce a textual combinator file. If `FILE` ends in `.c` it will produce a C file with the combinators. For all other `FILE` it will compile the combinators together with the runtime system to produce a regular executable. * `-r` run directly * `-v` be more verbose, flag can be repeated @@ -141,6 +146,12 @@ * `-z` compress combinator code generated in the `.c` file * `-XCPP` run `cpphs` on source files * `-Dxxx` passed to `cpphs` +* `-tTARGET` select target +* `-a` set package to empty +* `-aDIR` prepend `DIR` to package search path +* `-PPKG` create package `PKG` +* `-LFILE` list all modules in a package +* `-Q FILE DIR` install package With the `-v` flag the processing time for each module is reported. E.g. @@ -162,6 +173,7 @@ * `MHSDIR` the directory where `lib/` and `src/` are expected to be. Defaults to `./`. * `MHSCC` command use to compile C file to produce binaries. Look at the source for more information. * `MHSCPPHS` command to use with `-XCPP` flag. Defaults to `cpphs`. +* `MHSCONF` which runtime to use, defaults to `unix-32/64` depending on your host's word size ### Compiler modules @@ -210,6 +222,17 @@ * `:kind TYPE` Show kind of `TYPE` * `expr` Evaluate expression. * `defn` Add definition (can also be an `import`) + +## MHS as a cross compiler +When `mhs` is built, targets.conf is generated. It will look something like this: +```ini +[default] +cc = "cc" +conf = "unix-64" +``` + +You can add other targets to this file, changing which compiler command is used and which runtime is +selected and then use the `-t` argument to select which target you would like. ## Files There is a number of subdirectories: diff --git a/generated/mhs.c b/generated/mhs.c --- a/generated/mhs.c +++ b/generated/mhs.c @@ -1,4152 +1,15231 @@ static unsigned char data[] = { -122,2,118,55,46,2,48,10,49,2,54,55,55,2,10,65,32,2,95,48, -32,2,95,50,51,2,32,64,32,2,95,51,48,32,5,2,66,32,95,224, -16,0,2,49,56,32,2,95,49,48,96,26,2,49,32,95,2,51,50,32, -2,95,51,52,32,13,2,79,32,35,2,52,54,32,2,64,32,75,32,3, -128,1,2,95,53,55,160,9,2,67,32,83,2,39,32,67,2,39,32,64, -64,4,2,95,52,51,32,26,2,57,32,95,2,54,49,32,160,40,2,49, -48,48,2,32,35,49,96,11,2,79,32,102,2,114,111,109,2,85,84,70, -2,56,32,34,2,45,45,118,2,101,114,115,2,105,111,110,2,34,32,64, -224,89,2,2,66,32,66,2,32,83,32,32,81,2,66,32,64,64,153,2, 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-2,98,34,32,161,108,224,145,0,224,31,1,2,111,117,116,2,46,99,111, -2,109,98,34,192,191,160,101,224,7,24,161,122,128,15,64,194,33,41,32, -194,2,66,32,89,32,15,226,108,0,32,8,194,42,96,2,96,11,64,17, -225,186,1,130,234,64,5,226,175,2,96,57,98,133,98,254,130,97,225,144, -10,2,45,45,34,225,108,6,224,78,53,2,118,34,32,224,78,67,2,114, -34,32,224,78,67,2,108,34,32,224,78,67,2,67,82,34,224,79,69,2, -87,34,32,224,79,68,224,78,69,2,84,34,32,224,78,67,2,88,67,80, -2,80,34,32,224,81,67,2,122,34,32,224,78,5,69,95,128,61,229,200, -1,160,74,128,17,96,113,163,108,224,31,0,128,12,224,123,0,224,13,4, -197,219,128,23,96,143,2,49,52,52,69,147,2,52,53,32,224,122,3,160, -46,224,62,0,224,64,2,64,149,100,107,224,61,2,2,49,48,53,224,62, -8,129,3,96,50,197,184,228,25,0,35,254,69,172,2,54,54,51,96,12, -2,54,48,32,224,239,1,164,195,2,95,50,49,134,18,2,67,32,79,228, -188,4,225,114,8,225,0,124,2,49,49,32,225,0,28,224,249,0,134,192, -160,249,225,247,7,160,99,128,112,224,220,1,224,205,10,104,38,224,205,71, -2,54,56,32,225,205,44,103,60,225,205,13,2,51,51,55,225,205,26,128, -145,224,143,8,224,205,2,136,192,72,52,160,13,231,171,15,2,85,110,107, -2,110,111,119,2,110,32,102,2,108,97,103,2,58,32,34,232,73,2,192, -146,224,57,5,39,83,105,166,232,242,1,232,147,7,227,152,7,201,0,96, -77,224,215,11,105,29,97,42,32,116,193,35,71,183,225,35,0,2,95,52, -54,224,47,23,65,54,224,47,35,65,24,224,47,25,33,197,192,48,72,174, -225,180,1,224,23,0,2,55,48,32,224,72,10,224,128,25,224,55,13,224, -176,18,224,127,4,224,47,24,2,53,57,50,224,95,37,2,55,49,32,224, -47,26,41,106,192,47,224,95,4,130,238,43,204,2,57,57,32,130,21,41, -143,67,239,227,32,14,136,237,201,245,32,89,76,28,2,55,53,55,34,25, -75,79,131,117,224,1,5,198,43,227,9,7,224,39,27,224,35,25,224,31, -21,224,27,17,224,23,13,224,19,9,224,15,5,228,41,4,163,108,74,193, -227,70,13,225,42,3,33,117,225,42,3,2,90,32,66,225,42,230,225,40, -25,65,38,32,33,225,38,3,224,148,3,2,90,32,64,225,20,20,225,62, -117,224,222,13,64,210,35,104,224,210,13,224,208,3,226,13,161,225,199,15, -32,234,68,234,225,189,15,225,191,7,224,242,107,224,186,11,64,182,38,82, -224,182,17,224,184,9,224,186,73,224,152,9,64,150,39,25,224,150,19,224, -154,13,224,78,9,64,74,143,158,224,74,18,224,72,11,224,229,33,224,191, -7,64,114,143,242,224,114,6,192,102,228,252,201,228,222,19,65,14,144,62, -225,14,4,129,12,230,7,215,229,247,21,65,26,136,69,234,217,2,2,115, -97,103,2,101,58,32,2,109,104,115,2,32,91,45,211,243,2,93,32,91, -2,45,118,93,32,4,2,108,93,32,2,91,45,114,64,4,2,67,91,82, -2,124,87,93,64,9,78,171,64,7,2,68,100,101,2,102,93,32,2,91, -45,84,64,4,2,122,93,32,2,91,45,105,2,80,65,84,2,72,93,32, -2,91,45,111,2,70,73,76,2,69,93,32,2,91,77,111,2,100,117,108, -2,101,78,97,2,109,101,93,178,156,75,5,32,127,142,219,244,215,0,107, -254,238,217,1,32,196,75,68,244,101,1,224,39,1,43,171,139,190,128,247, -245,16,2,2,50,53,50,226,31,3,233,154,2,224,71,20,239,101,0,224, 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-185,51,187,185,236,146,4,185,63,237,224,19,185,87,2,110,101,103,32,11, -128,187,2,42,32,58,184,208,2,45,32,58,183,216,2,43,32,58,183,212, -237,146,93,2,58,55,56,224,251,8,224,185,6,184,44,40,2,183,226,33, -92,183,219,158,237,98,195,114,213,2,95,54,56,96,5,100,55,118,8,131, -253,126,52,210,129,94,51,160,11,2,58,55,52,199,243,182,6,241,96,5, -70,17,194,25,123,180,183,196,224,35,3,224,59,3,224,47,9,129,105,2, -62,61,32,2,58,55,49,128,10,32,9,129,106,77,237,179,227,2,60,32, -58,179,189,2,105,99,109,62,187,179,153,109,232,163,88,102,71,179,95,77, -229,178,144,66,127,178,142,239,97,126,178,180,226,166,0,252,35,6,177,49, -128,218,97,161,95,119,191,139,2,58,54,49,131,97,2,101,113,117,2,97, -108,32,2,58,54,48,239,72,0,109,198,238,80,2,202,237,34,241,138,240, -232,182,6,2,39,32,85,224,24,4,247,80,4,233,99,0,133,94,241,233, -0,147,27,167,222,96,11,2,95,53,57,224,91,4,64,173,224,21,1,2, -58,53,57,160,236,171,116,177,145,2,95,53,54,228,247,2,2,77,72,83, -2,68,73,82,132,223,2,58,53,55,252,66,13,108,211,2,95,52,50,236, -82,26,252,164,8,81,123,236,88,17,177,217,35,53,177,195,2,95,53,51, -32,11,130,52,2,112,101,101,2,107,67,65,2,83,116,114,2,105,110,103, -32,20,129,187,2,90,32,85,96,56,161,170,48,239,2,58,53,49,128,46, -2,110,117,108,33,151,177,1,97,196,118,5,97,196,160,170,2,58,52,57, -242,42,8,242,54,4,129,88,217,58,129,56,177,1,32,164,176,255,37,55, -176,251,2,112,61,61,32,11,128,186,37,67,176,233,147,241,2,58,52,51, -251,85,0,2,101,110,118,32,15,128,179,168,193,99,58,111,207,97,83,66, -70,238,79,4,102,163,112,236,65,49,193,48,240,237,1,145,27,144,235,176, -234,2,95,51,56,2,32,58,51,128,225,2,112,99,97,2,115,116,32,2, -58,51,56,173,184,2,114,101,101,32,13,225,224,1,128,126,64,87,80,58, -224,96,1,176,60,2,110,101,119,193,122,2,76,101,110,32,22,161,158,48, -30,100,60,240,57,0,2,58,51,51,160,9,128,23,160,227,99,121,128,17, -173,213,236,6,5,226,99,8,235,254,3,188,87,235,105,4,2,95,50,57, -224,162,0,128,237,235,108,7,2,116,97,105,2,108,34,32,128,35,116,23, -176,114,71,232,2,58,50,56,96,11,2,101,114,114,93,228,175,236,44,169, -175,235,2,65,46,114,43,170,32,14,237,221,0,33,180,2,65,114,103,2, -82,101,102,32,20,215,82,32,74,131,9,96,143,97,160,100,250,174,228,32, -53,2,62,62,32,2,58,50,50,160,118,227,10,0,143,147,253,173,3,160, -73,64,11,57,11,192,11,46,235,192,11,2,58,50,49,247,95,4,115,33, -227,101,2,116,225,160,41,228,136,0,64,41,128,38,110,40,224,37,1,2, -95,56,32,140,89,161,17,33,16,175,10,224,53,9,143,70,128,179,212,3, -225,46,0,175,26,245,252,1,229,63,4,175,27,150,141,51,128,231,248,5, -244,166,3,239,35,2,96,126,107,171,224,13,4,96,241,201,1,48,6,224, -75,1,210,211,162,87,2,51,32,66,100,143,241,245,0,194,48,90,100,207, -94,252,196,0,125,33,32,255,161,19,2,58,57,32,201,18,227,185,3,207, -41,2,58,54,32,161,216,2,114,101,116,2,117,114,110,36,93,225,233,1, -67,249,195,248,246,71,7,230,173,55,2,58,50,32,224,80,1,224,40,15, -2,58,49,32,232,158,1,246,212,0,64,234,91,72,2,54,32,32,236,150, -11,224,1,255,224,1,255,224,1,255,224,1,255,224,1,255,224,1,255,224, -1,255,224,1,255,224,1,255,224,1,255,224,1,255,224,1,255,224,1,157, -0,125, -}; -unsigned char *combexpr = data; -int combexprlen = 82882; +118,55,46,48,10,49,56,55,56,10,65,32,95,48,32,95,50,51,32,64, +95,50,48,52,32,64,66,32,95,48,32,95,50,51,32,64,95,49,56,32, +95,49,48,32,64,95,50,48,53,32,95,49,53,52,32,95,49,53,54,32, +64,79,32,35,52,54,32,64,75,32,64,64,64,64,95,50,49,51,32,64, +64,64,66,32,66,32,95,48,32,95,50,51,32,64,95,50,49,55,32,64, +64,64,83,39,32,66,32,64,66,39,32,67,32,83,32,64,66,32,83,32, +67,39,32,83,39,32,64,66,32,83,32,64,95,49,49,49,32,95,50,49, +57,32,64,95,49,53,52,32,95,49,53,54,32,64,102,114,111,109,85,84, +70,56,32,34,45,45,118,101,114,115,105,111,110,34,32,64,64,64,64,64, +67,39,66,32,85,32,95,50,54,32,95,50,51,50,32,64,95,49,51,54, +32,95,49,53,52,32,95,49,53,54,32,64,102,114,111,109,85,84,70,56, 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-import Data.List -import GHC.Records import GHC.Types import System.Environment import System.IO -------- List -------- - -elemBy :: (a -> a -> Bool) -> a -> [a] -> Bool -elemBy eq a = any (eq a) - --- A simple "quicksort" for now. -sortLE :: forall a . (a -> a -> Bool) -> [a] -> [a] -sortLE _ [] = [] -sortLE le (x:xs) = sortLE le lt ++ (x : sortLE le ge) - where (ge, lt) = partition (le x) xs - -showListS :: (a -> String) -> [a] -> String -showListS sa arg = - let - showRest as = - case as of - [] -> "]" - x : xs -> "," ++ sa x ++ showRest xs - in - case arg of - [] -> "[]" - a : as -> "[" ++ sa a ++ showRest as - -anySame :: (Eq a) => [a] -> Bool -anySame = anySameBy (==) - -anySameBy :: (a -> a -> Bool) -> [a] -> Bool -anySameBy _ [] = False -anySameBy eq (x:xs) = elemBy eq x xs || anySameBy eq xs - -deleteAllBy :: forall a . (a -> a -> Bool) -> a -> [a] -> [a] -deleteAllBy _ _ [] = [] -deleteAllBy eq x (y:ys) = if eq x y then deleteAllBy eq x ys else y : deleteAllBy eq x ys - -deleteAllsBy :: forall a . (a -> a -> Bool) -> [a] -> [a] -> [a] -deleteAllsBy eq = foldl (flip (deleteAllBy eq)) - -padLeft :: Int -> String -> String -padLeft n s = replicate (n - length s) ' ' ++ s - -------- Exception -------- - ---newtype Exn = Exn String --- deriving (Show) ---instance Exception Exn - -type Exn = SomeException - -exnToString :: Exn -> String -exnToString = trunc . show - where trunc = head . lines - ------- IO -------- openFileM :: FilePath -> IOMode -> IO (Maybe Handle) @@ -78,48 +19,6 @@ Left _ -> return Nothing Right h -> return (Just h) -getTimeMilli :: IO Int -getTimeMilli = floor . (1000 *) . nominalDiffTimeToSeconds . utcTimeToPOSIXSeconds <$> getCurrentTime - -------- Read -------- - --- Convert string in scientific notation to a rational number. -readRational :: String -> Rational -readRational "" = undefined -readRational acs@(sgn:as) | sgn == '-' = negate $ rat1 as - | otherwise = rat1 acs - where - rat1 s1 = - case span isDigit s1 of - (ds1, cr1) | ('.':r1) <- cr1 -> rat2 f1 r1 - | (c:r1) <- cr1, toLower c == 'e' -> rat3 f1 r1 - | otherwise -> f1 - where f1 = toRational (read ds1 :: Integer) - - rat2 f1 s2 = - case span isDigit s2 of - (ds2, cr2) | (c:r2) <- cr2, toLower c == 'e' -> rat3 f2 r2 - | otherwise -> f2 - where f2 = f1 + toRational (read ds2 :: Integer) * 10 ^^ (negate $ length ds2) - - rat3 f2 ('+':s) = f2 * expo s - rat3 f2 ('-':s) = f2 / expo s - rat3 f2 s = f2 * expo s - - expo s = 10 ^ (read s :: Int) - -partitionM :: Monad m => (a -> m Bool) -> [a] -> m ([a], [a]) -partitionM _ [] = return ([], []) -partitionM p (x:xs) = do - b <- p x - (ts,fs) <- partitionM p xs - return $ if b then (x:ts, fs) else (ts, x:fs) - -substString :: forall a . Eq a => [a] -> [a] -> [a] -> [a] -substString _ _ [] = [] -substString from to xs@(c:cs) | Just rs <- stripPrefix from xs = to ++ substString from to rs - | otherwise = c : substString from to cs - openTmpFile :: String -> IO (String, Handle) openTmpFile tmplt = do mtmp <- lookupEnv "TMPDIR" @@ -129,6 +28,8 @@ Right x -> return x Left (_::SomeException) -> openTempFile "." tmplt +------- Read -------- + usingMhs :: Bool usingMhs = False @@ -142,26 +43,3 @@ rnfNoErr :: forall a . a -> () rnfNoErr _ = () ------------------------------------ --- Virtual fields for tuples. - -instance forall a b . HasField "_1" (a, b) a where - getField (a, _) = a -instance forall a b . HasField "_2" (a, b) b where - getField (_, b) = b - -instance forall a b c . HasField "_1" (a, b, c) a where - getField (a, _, _) = a -instance forall a b c . HasField "_2" (a, b, c) b where - getField (_, b, _) = b -instance forall a b c . HasField "_3" (a, b, c) c where - getField (_, _, c) = c - -instance forall a b c d . HasField "_1" (a, b, c, d) a where - getField (a, _, _, _) = a -instance forall a b c d . HasField "_2" (a, b, c, d) b where - getField (_, b, _, _) = b -instance forall a b c d . HasField "_3" (a, b, c, d) c where - getField (_, _, c, _) = c -instance forall a b c d . HasField "_4" (a, b, c, d) d where - getField (_, _, _, d) = d diff --git a/ghc/MicroHs/Instances.hs b/ghc/MicroHs/Instances.hs --- a/ghc/MicroHs/Instances.hs +++ b/ghc/MicroHs/Instances.hs @@ -27,7 +27,7 @@ instance NFData Exp where rnf (Var i) = rnf i; rnf (App f a) = rnf f `seq` rnf a; rnf (Lam i e) = rnf i `seq` rnf e; rnf (Lit l) = rnf l -instance NFData Lit where rnf (LInt i) = rnf i; rnf (LInteger i) = rnf i; rnf (LDouble d) = rnf d; rnf (LRat r) = rnf r; rnf (LChar c) = rnf c; rnf (LStr s) = rnf s; rnf (LPrim s) = rnf s; rnf (LForImp s _) = rnf s; rnf (LTick s) = rnf s; rnf (LUStr s) = rnf s +instance NFData Lit where rnf (LInt i) = rnf i; rnf (LInteger i) = rnf i; rnf (LDouble d) = rnf d; rnf (LRat r) = rnf r; rnf (LChar c) = rnf c; rnf (LStr s) = rnf s; rnf (LPrim s) = rnf s; rnf (LExn s) = rnf s; rnf (LForImp s _) = rnf s; rnf (LTick s) = rnf s; rnf (LUStr s) = rnf s instance NFData Ident where rnf (Ident _ s) = rnf s diff --git a/ghc/PrimTable.hs b/ghc/PrimTable.hs --- a/ghc/PrimTable.hs +++ b/ghc/PrimTable.hs @@ -5,6 +5,7 @@ import Data.Maybe import Data.Word() import System.IO +import System.IO.TimeMilli import Unsafe.Coerce import GHC.Types(Any) import Foreign.C.String @@ -14,8 +15,8 @@ --import System.Environment import System.IO.Unsafe --import Debug.Trace -import Compat + type AnyType = Any primitive :: String -> Any @@ -118,9 +119,6 @@ , comb0 "IO.stdin" stdin , comb0 "IO.stdout" stdout , comb0 "IO.stderr" stderr - - , comb "noMatch" (\ (s::Any) (l::Int) (c::Int) -> error ("no match at " ++ toString s ++ " line " ++ show l ++ ", col " ++ show c)) - , comb "noDefault" (\ (s::Any) -> error ("no default for " ++ toString s)) ] where diff --git a/ghc/System/Console/SimpleReadline.hs b/ghc/System/Console/SimpleReadline.hs --- a/ghc/System/Console/SimpleReadline.hs +++ b/ghc/System/Console/SimpleReadline.hs @@ -1,6 +1,7 @@ module System.Console.SimpleReadline( -- getInputLine, - getInputLineHist + getInputLineHist, + getInputLineHistComp, ) where import qualified System.Console.Haskeline as H import System.Console.Haskeline hiding (getInputLine) @@ -15,3 +16,12 @@ getInputLineHist hist prompt = runInputT settings (H.getInputLine prompt) where settings = defaultSettings { historyFile = Just hist } + +getInputLineHistComp :: ((String, String) -> IO [String]) -> FilePath -> String -> IO (Maybe String) +getInputLineHistComp comp hist prompt = + runInputT settings (H.getInputLine prompt) + where settings = setComplete hcomp $ defaultSettings { historyFile = Just hist } + hcomp :: CompletionFunc IO + hcomp pp@(pre, _) = do + alts <- comp pp + return (pre, map (\ s -> Completion s s False) alts) diff --git a/ghc/System/IO/Extra.hs b/ghc/System/IO/Extra.hs new file mode 100644 --- /dev/null +++ b/ghc/System/IO/Extra.hs @@ -0,0 +1,20 @@ +module System.IO.Extra(openFileM, openTmpFile) where +import System.Environment +import System.IO + +openFileM :: FilePath -> IOMode -> IO (Maybe Handle) +openFileM path m = do + r <- (try $ openFile path m) :: IO (Either IOError Handle) + case r of + Left _ -> return Nothing + Right h -> return (Just h) + +openTmpFile :: String -> IO (String, Handle) +openTmpFile tmplt = do + mtmp <- lookupEnv "TMPDIR" + let tmp = fromMaybe "/tmp" mtmp + res <- try $ openTempFile tmp tmplt + case res of + Right x -> return x + Left (_::SomeException) -> openTempFile "." tmplt + diff --git a/ghc/System/IO/Serialize.hs b/ghc/System/IO/Serialize.hs --- a/ghc/System/IO/Serialize.hs +++ b/ghc/System/IO/Serialize.hs @@ -9,6 +9,7 @@ readSerialized, ) where --import System.IO +import GHC.Stack {- hSerialize :: forall a . Handle -> a -> IO () @@ -19,10 +20,10 @@ writeSerialized = errghc -} -writeSerializedCompressed :: forall a . FilePath -> a -> IO () +writeSerializedCompressed :: forall a . HasCallStack => FilePath -> a -> IO () writeSerializedCompressed = errghc -readSerialized :: forall a . FilePath -> IO a +readSerialized :: forall a . HasCallStack => FilePath -> IO a readSerialized = errghc -errghc :: a +errghc :: HasCallStack => a errghc = error "System.IO.System: serialization not available with ghc" diff --git a/ghc/System/IO/TimeMilli.hs b/ghc/System/IO/TimeMilli.hs new file mode 100644 --- /dev/null +++ b/ghc/System/IO/TimeMilli.hs @@ -0,0 +1,7 @@ +module System.IO.TimeMilli(getTimeMilli) where +import Data.Time +import Data.Time.Clock.POSIX + +getTimeMilli :: IO Int +getTimeMilli = floor . (1000 *) . nominalDiffTimeToSeconds . utcTimeToPOSIXSeconds <$> getCurrentTime + diff --git a/lib/AllOfLib.hs b/lib/AllOfLib.hs --- a/lib/AllOfLib.hs +++ b/lib/AllOfLib.hs @@ -2,14 +2,15 @@ -- See LICENSE file for full license. module AllOfLib(main) where -- Only used to save the compilation cache. -import Compat import Control.Applicative import Control.DeepSeq import Control.Error import Control.Exception +import Control.Exception.Internal import Control.Monad import Control.Monad.Fail import Control.Monad.ST +import Control.Monad.ST_Type import Control.Monad.State.Strict import Data.Bits import Data.Bool @@ -72,6 +73,7 @@ import Debug.Trace import Foreign.C.String import Foreign.C.Types +import Foreign.ForeignPtr import Foreign.Marshal.Alloc import Foreign.Marshal.Array import Foreign.Marshal.Utils @@ -80,9 +82,11 @@ import GHC.Stack import GHC.Types import Numeric +import Numeric.FormatFloat +import Numeric.Natural import Prelude import Primitives -import System.Console.SimpleReadline +--import System.Console.SimpleReadline import System.Directory import System.Environment import System.Exit @@ -91,13 +95,14 @@ import System.IO.MD5 import System.IO.PrintOrRun import System.IO.Serialize +import System.IO.TimeMilli import System.Info import System.Process import Text.PrettyPrint.HughesPJ import Text.PrettyPrint.HughesPJClass +import Text.Printf import Text.Read import Text.Show -import Text.String import Unsafe.Coerce main :: IO () diff --git a/lib/Control/Error.hs b/lib/Control/Error.hs --- a/lib/Control/Error.hs +++ b/lib/Control/Error.hs @@ -1,12 +1,23 @@ -- Copyright 2023 Lennart Augustsson -- See LICENSE file for full license. -module Control.Error(module Control.Error) where +module Control.Error(error, undefined, ErrorCall(..)) where import Prelude() -- do not import Prelude -import Primitives import Data.Char_Type +import Data.List_Type +import Control.Exception.Internal +import {-# SOURCE #-} Data.Typeable +import Text.Show +newtype ErrorCall = ErrorCall String + deriving (Typeable) + +instance Show ErrorCall where + show (ErrorCall s) = ("error: "::String) ++ s + +instance Exception ErrorCall + error :: forall a . String -> a -error = primError +error s = throw (ErrorCall s) undefined :: forall a . a undefined = error "undefined" diff --git a/lib/Control/Exception.hs b/lib/Control/Exception.hs --- a/lib/Control/Exception.hs +++ b/lib/Control/Exception.hs @@ -1,32 +1,135 @@ +-- Copyright 2023, 2024 Lennart Augustsson +-- See LICENSE file for full license. module Control.Exception( - catch, try, + -- re-exports + throw, + SomeException, + Exception(..), + -- + Handler(..), catches, + -- + catch, catchJust, + handle, handleJust, + + try, throwIO, - Exn(..), - exnToString, onException, - SomeException, + displaySomeException, + -- + ArithException(..), ) where -import Primitives -import Prelude +import Control.Exception.Internal +import {-# SOURCE #-} Data.Typeable +import System.IO.Unsafe -type SomeException = Exn +instance Show SomeException where + showsPrec p (SomeException e) = showsPrec p e -newtype Exn = Exn String +instance Exception SomeException where + toException se = se + fromException = Just + displayException (SomeException e) = displayException e -exnToString :: Exn -> String -exnToString (Exn s) = s +-- This is the function called by the runtime. +-- It compiles to +-- (U (U (K2 A))) +displaySomeException :: SomeException -> String +displaySomeException = displayException -catch :: forall a . IO a -> (Exn -> IO a) -> IO a -catch ioa hdl = primCatch ioa (hdl . Exn) +-------------------------- -try :: forall a . IO a -> IO (Either Exn a) +data Handler a = forall e . Exception e => Handler (e -> IO a) + +instance Functor Handler where + fmap f (Handler h) = Handler (fmap f . h) + +catches :: IO a -> [Handler a] -> IO a +catches io handlers = io `catch` catchesHandler handlers + +catchesHandler :: [Handler a] -> SomeException -> IO a +catchesHandler handlers e = foldr tryHandler (throw e) handlers + where tryHandler (Handler handler) res + = case fromException e of + Just e' -> handler e' + Nothing -> res + +-------------------------- + +catchJust + :: Exception e + => (e -> Maybe b) + -> IO a + -> (b -> IO a) + -> IO a +catchJust p a handler = catch a handler' + where handler' e = case p e of + Nothing -> throwIO e + Just b -> handler b + +handle :: Exception e => (e -> IO a) -> IO a -> IO a +handle = flip catch + +handleJust :: Exception e => (e -> Maybe b) -> (b -> IO a) -> IO a -> IO a +handleJust p = flip (catchJust p) + +mapException :: (Exception e1, Exception e2) => (e1 -> e2) -> a -> a +mapException f v = + unsafePerformIO (catch (evaluate v) + (\x -> throwIO (f x))) + +-- Evaluate a when executed, not when evaluated +evaluate :: a -> IO a +evaluate a = seq a (return ()) >> return a + +try :: forall a e . Exception e => IO a -> IO (Either e a) try ioa = catch (fmap Right ioa) (return . Left) -throwIO :: forall a . Exn -> IO a -throwIO (Exn s) = - let e = error s - in seq e (return e) +-- Throw an exception when executed, not when evaluated +throwIO :: forall a e . Exception e => e -> IO a +throwIO e = bad >> bad -- we never reacj the second 'bad' + where bad = throw e onException :: IO a -> IO b -> IO a -onException io what = io `catch` \e -> do _ <- what - throwIO e +onException io what = + io `catch` \ e -> do _ <- what + throwIO (e :: SomeException) + +bracket :: IO a -> (a -> IO b) -> (a -> IO c) -> IO c +bracket before after thing = + mask $ \ restore -> do + a <- before + r <- restore (thing a) `onException` after a + _ <- after a + return r + +finally :: IO a -> IO b -> IO a +finally a sequel = + mask $ \ restore -> do + r <- restore a `onException` sequel + _ <- sequel + return r + +bracket_ :: IO a -> IO b -> IO c -> IO c +bracket_ before after thing = bracket before (const after) (const thing) + +bracketOnError :: IO a -> (a -> IO b) -> (a -> IO c) -> IO c +bracketOnError before after thing = + mask $ \ restore -> do + a <- before + restore (thing a) `onException` after a + +-- XXX we don't have masks yet +mask :: ((forall a. IO a -> IO a) -> IO b) -> IO b +mask io = io id + +------------------- + +data ArithException + = Overflow + | Underflow + | LossOfPrecision + | DivideByZero + | Denormal + | RatioZeroDenominator + deriving (Eq, Ord, Show, Typeable) +instance Exception ArithException diff --git a/lib/Control/Exception/Internal.hs b/lib/Control/Exception/Internal.hs new file mode 100644 --- /dev/null +++ b/lib/Control/Exception/Internal.hs @@ -0,0 +1,81 @@ +-- Copyright 2024 Lennart Augustsson +-- See LICENSE file for full license. +module Control.Exception.Internal( + throw, catch, + Exception(..), + SomeException(..), + PatternMatchFail, NoMethodError, RecSelError, RecConError(..), + patternMatchFail, noMethodError, recSelError, recConError, + ) where +import Prelude() +import Primitives(IO) +import Data.Char_Type +import Data.List_Type +import Data.Maybe_Type +import {-# SOURCE #-} Data.Typeable +import Text.Show + +primRaise :: forall a . SomeException -> a +primRaise = primitive "raise" + +primCatch :: forall a . IO a -> (SomeException -> IO a) -> IO a +primCatch = primitive "catch" + +throw :: forall e a. Exception e => e -> a +throw e = primRaise (toException e) + +catch :: forall e a . + Exception e + => IO a + -> (e -> IO a) + -> IO a +catch io handler = primCatch io handler' + where handler' e = case fromException e of + Just e' -> handler e' + Nothing -> primRaise e + +------------------ + +data SomeException = forall e . Exception e => SomeException e + deriving (Typeable) + +-- NOTE: The runtime system knows about this class. +-- It uses displayException to show an uncaught exception. +-- Any changes here must be refleced in eval.c +class (Typeable e, Show e) => Exception e where + toException :: e -> SomeException + fromException :: SomeException -> Maybe e + displayException :: e -> String + + toException = SomeException + fromException (SomeException e) = cast e + displayException = show + +------------------ + +-- Errors generated by the compiler + +newtype PatternMatchFail = PatternMatchFail String deriving (Typeable) +newtype NoMethodError = NoMethodError String deriving (Typeable) +newtype RecSelError = RecSelError String deriving (Typeable) +newtype RecConError = RecConError String deriving (Typeable) + +instance Show PatternMatchFail where showsPrec _ (PatternMatchFail s) r = showString "no match at " (showString s r) +instance Show NoMethodError where showsPrec _ (NoMethodError s) r = showString "no default for " (showString s r) +instance Show RecSelError where showsPrec _ (RecSelError s) r = showString "no field " (showString s r) +instance Show RecConError where showsPrec _ (RecConError s) r = showString "uninit field " (showString s r) + +instance Exception PatternMatchFail +instance Exception NoMethodError +instance Exception RecSelError +instance Exception RecConError + +patternMatchFail :: forall a . String -> a +noMethodError :: forall a . String -> a +recSelError :: forall a . String -> a +recConError :: forall a . String -> a + +noMethodError s = throw (NoMethodError s) +patternMatchFail s = throw (PatternMatchFail s) +recSelError s = throw (RecSelError s) +recConError s = throw (RecConError s) diff --git a/lib/Control/ExceptionX.hs b/lib/Control/ExceptionX.hs deleted file mode 100644 --- a/lib/Control/ExceptionX.hs +++ /dev/null @@ -1,103 +0,0 @@ -module Control.ExceptionX( - module Control.ExceptionX - ) where -import Prelude -import Data.Typeable - ------------------- - -primRaiseX :: forall a . SomeException -> a -primRaiseX = primitive "raiseX" -primCatchX :: forall a . IO a -> (SomeException -> IO a) -> IO a -primCatchX = primitive "catchX" - -throwX :: forall e a. Exception e => e -> a -throwX e = primRaiseX (toException e) - -throwXIO :: forall e a. Exception e => e -> IO a -throwXIO e = primRaiseX (toException e) - -catchX :: forall e a . - Exception e - => IO a - -> (e -> IO a) - -> IO a -catchX io handler = primCatchX io handler' - where handler' e = case fromException e of - Just e' -> handler e' - Nothing -> throwXIO e - -tryX :: forall e a . Exception e => IO a -> IO (Either e a) -tryX ioa = catchX (fmap Right ioa) (return . Left) - ------------------- - -data SomeException = forall e . Exception e => SomeException e - deriving (Typeable) - -instance Show SomeException where - showsPrec p (SomeException e) = showsPrec p e - -class (Typeable e, Show e) => Exception e where - toException :: e -> SomeException - fromException :: SomeException -> Maybe e - displayException :: e -> String - - toException = SomeException - fromException (SomeException e) = cast e - displayException = show - -instance Exception SomeException where - toException se = se - fromException = Just - displayException (SomeException e) = displayException e - ------------------- - --- Call to 'error' -data ErrorCall = ErrorCall String - deriving (Typeable) - -instance Show ErrorCall where - showsPrec _ (ErrorCall err) = showString err - -instance Exception ErrorCall - ---errorCallException :: String -> SomeException ---errorCallException s = toException (ErrorCall s) - ------------------- - --- Errors generated by the compiler - -newtype PatternMatchFail = PatternMatchFail String deriving (Typeable) -newtype RecSelError = RecSelError String deriving (Typeable) -newtype RecConError = RecConError String deriving (Typeable) -newtype RecUpdError = RecUpdError String deriving (Typeable) -newtype NoMethodError = NoMethodError String deriving (Typeable) - -instance Show PatternMatchFail where showsPrec _ (PatternMatchFail s) = showString s -instance Show RecSelError where showsPrec _ (RecSelError s) = showString s -instance Show RecConError where showsPrec _ (RecConError s) = showString s -instance Show RecUpdError where showsPrec _ (RecUpdError s) = showString s -instance Show NoMethodError where showsPrec _ (NoMethodError s) = showString s - -instance Exception PatternMatchFail -instance Exception RecSelError -instance Exception RecConError -instance Exception RecUpdError -instance Exception NoMethodError - -patternMatchFail :: forall a . String -> a -recSelError :: forall a . String -> a -recConError :: forall a . String -> a -recUpdError :: forall a . String -> a -noMethodError :: forall a . String -> a - -patternMatchFail s = throwX (PatternMatchFail s) -recSelError s = throwX (RecSelError s) -recConError s = throwX (RecConError s) -recUpdError s = throwX (RecUpdError s) -noMethodError s = throwX (NoMethodError s) - ------------------- diff --git a/lib/Control/Monad.hs b/lib/Control/Monad.hs --- a/lib/Control/Monad.hs +++ b/lib/Control/Monad.hs @@ -1,3 +1,5 @@ +-- Copyright 2023 Lennart Augustsson +-- See LICENSE file for full license. module Control.Monad( Functor(..), Monad(..), @@ -31,8 +33,6 @@ liftM2, liftM3, ap, - -- XXX move - partitionM, ) where import Prelude() -- do not import Prelude import Primitives -- for fixity @@ -179,13 +179,6 @@ return (f' a') ----- - -partitionM :: forall m a . Monad m => (a -> m Bool) -> [a] -> m ([a], [a]) -partitionM _ [] = return ([], []) -partitionM p (x:xs) = do - b <- p x - (ts,fs) <- partitionM p xs - return $ if b then (x:ts, fs) else (ts, x:fs) instance forall a . Functor ((->) a) where fmap = (.) diff --git a/lib/Data/Array.hs b/lib/Data/Array.hs new file mode 100644 --- /dev/null +++ b/lib/Data/Array.hs @@ -0,0 +1,124 @@ +module Data.Array ( + module Data.Ix, + Array, + array, + listArray, + accumArray, + (!), + bounds, + indices, + elems, + assocs, + (//), + accum, + ixmap, + ) where +import Primitives(primPerformIO, primArrCopy, primArrEQ) +import Data.Ix +import Data.IOArray +import Text.Show + +data Array i a + = Array (i,i) -- bounds + !Int -- = (rangeSize (l,u)) + (IOArray a) -- elements + +instance Ix a => Functor (Array a) where + fmap f a@(Array b _ _) = array b [(i, f (a ! i)) | i <- range b] + +instance (Ix a, Eq b) => Eq (Array a b) where + (==) (Array b1 _ a1) (Array b2 _ a2) = b1 == b2 && primArrEQ a1 a2 + +instance (Ix a, Ord b) => Ord (Array a b) where + compare = undefined + +instance (Ix a, Show a, Show b) => Show (Array a b) where + showsPrec p a = + showParen (p > appPrec) $ + showString "array " . + showsPrec appPrec1 (bounds a) . + showChar ' ' . + showsPrec appPrec1 (assocs a) + +--instance (Ix a, Read a, Read b) => Read (Array a b) where +-- readsPrec = undefined + +array :: (Ix a) => (a,a) -> [(a,b)] -> Array a b +array b ies = + let n = safeRangeSize b + in unsafeArray' b n [(safeIndex b n i, e) | (i, e) <- ies] + +listArray :: (Ix a) => (a,a) -> [b] -> Array a b +listArray b es = + let n = safeRangeSize b + in if length es > n then error "listArray: list too long" else unsafeArray' b n (zip [0..] es) + +accumArray :: (Ix a) => (b -> c -> b) -> b -> (a,a) -> [(a,c)] -> Array a b +accumArray f z b = accum f (array b [(i, z) | i <- range b]) + +(!) :: (Ix a) => Array a b -> a -> b +(!) (Array b n a) i = primPerformIO $ readIOArray a (safeIndex b n i) + +bounds :: (Ix a) => Array a b -> (a,a) +bounds (Array b _ _) = b + +indices :: (Ix a) => Array a b -> [a] +indices (Array b _ _) = range b + +elems :: (Ix a) => Array a b -> [b] +elems (Array _ _ a) = primPerformIO $ elemsIOArray a + +assocs :: (Ix a) => Array a b -> [(a,b)] +assocs a = zip (indices a) (elems a) + +(//) :: (Ix a) => Array a b -> [(a,b)] -> Array a b +(//) (Array b n oa) ies = primPerformIO $ do + a <- primArrCopy oa + let adj (i, e) = writeIOArray a (safeIndex b n i) e + mapM_ adj ies + return $ Array b n a + +accum :: (Ix a) => (b -> c -> b) -> Array a b -> [(a,c)] -> Array a b +accum f arr@(Array b n _) ies = unsafeAccum f arr [(safeIndex b n i, e) | (i, e) <- ies] + +ixmap :: (Ix a, Ix b) => (a,a) -> (a -> b) -> Array b c -> Array a c +ixmap b f a = array b [(i, a ! f i) | i <- range b] + +------- + +unsafeAccum :: (e -> a -> e) -> Array i e -> [(Int, a)] -> Array i e +unsafeAccum f (Array b n oa) ies = primPerformIO $ do + a <- primArrCopy oa + let adj (i, e) = do + x <- readIOArray a i + let x' = f x e + seq x' (writeIOArray a i x') + mapM_ adj ies + return $ Array b n a + +unsafeArray' :: (i,i) -> Int -> [(Int, e)] -> Array i e +unsafeArray' b n ies = primPerformIO $ do + a <- newIOArray n arrEleBottom + mapM_ (\ (i, e) -> writeIOArray a i e) ies + return $ Array b n a + +arrEleBottom :: a +arrEleBottom = error "(Array.!): undefined array element" + +safeIndex :: Ix i => (i, i) -> Int -> i -> Int +safeIndex (l,u) n i | 0 <= i' && i' < n = i' + | otherwise = badSafeIndex i' n + where i' = index (l,u) i + +badSafeIndex :: Int -> Int -> a +badSafeIndex i n = error $ "Error in array index; " ++ show i ++ " not in range [0.." ++ show n ++ ")" + +safeRangeSize :: Ix i => (i, i) -> Int +safeRangeSize b = + let r = rangeSize b + in if r < 0 then error "Negative range size" else r + +elemsIOArray :: forall a . IOArray a -> IO [a] +elemsIOArray a = do + s <- sizeIOArray a + mapM (readIOArray a) [0::Int .. s - 1] diff --git a/lib/Data/Double.hs b/lib/Data/Double.hs new file mode 100644 --- /dev/null +++ b/lib/Data/Double.hs @@ -0,0 +1,92 @@ +module Data.Double(Double) where +import Prelude() +import Primitives +import Data.Bool +import Data.Eq +import Data.FloatW +import Data.Floating +import Data.Fractional +import Data.Function +import Data.List +import Data.Num +import Data.Ord +import Data.Real +import Data.RealFloat +import Data.RealFrac +import Text.Read +import Text.Show + +-- XXX I should really implement newtype deriving... + +newtype Double = D FloatW +unD :: Double -> FloatW +unD (D x) = x + +un :: (FloatW -> FloatW) -> (Double -> Double) +un f x = D (f (unD x)) + +bin :: (FloatW -> FloatW -> FloatW) -> (Double -> Double -> Double) +bin f x y = D (f (unD x) (unD y)) + +cmp :: (FloatW -> FloatW -> Bool) -> (Double -> Double -> Bool) +cmp f x y = f (unD x) (unD y) + +instance Num Double where + (+) = bin (+) + (-) = bin (-) + (*) = bin (*) + negate = un negate + abs = un abs + signum = un signum + fromInteger = D . fromInteger + +instance Fractional Double where + (/) = bin (/) + fromRational = D . fromRational + +instance Eq Double where + (==) = cmp (==) + (/=) = cmp (/=) + +instance Ord Double where + (<) = cmp (<) + (<=) = cmp (<=) + (>) = cmp (>) + (>=) = cmp (>=) + +instance Show Double where + showsPrec p = showsPrec p . unD + +instance Read Double where + readsPrec p = map (\ (x, s) -> (D x, s)) . readsPrec p + +instance Real Double where + toRational = toRational . unD + +instance RealFrac Double where + properFraction x = (a, D b) where (a, b) = properFraction (unD x) + +instance Floating Double where + pi = D pi + log = un log + exp = un exp + sqrt = un sqrt + sin = un sin + cos = un cos + tan = un tan + asin = un asin + acos = un acos + atan = un atan + +instance RealFloat Double where + floatRadix = floatRadix . unD + floatDigits = floatDigits . unD + floatRange = floatRange . unD + decodeFloat = decodeFloat . unD + encodeFloat e = D . encodeFloat e + isNaN = isNaN . unD + isInfinite = isInfinite . unD + isDenormalized = isDenormalized . unD + isNegativeZero = isNegativeZero . unD + isIEEE = isIEEE . unD + atan2 = bin atan2 diff --git a/lib/Data/Float.hs b/lib/Data/Float.hs new file mode 100644 --- /dev/null +++ b/lib/Data/Float.hs @@ -0,0 +1,92 @@ +module Data.Float(Float) where +import Prelude() +import Primitives +import Data.Bool +import Data.Eq +import Data.FloatW +import Data.Floating +import Data.Fractional +import Data.Function +import Data.List +import Data.Num +import Data.Ord +import Data.Real +import Data.RealFloat +import Data.RealFrac +import Text.Read +import Text.Show + +-- XXX I should really implement newtype deriving... + +newtype Float = D FloatW +unD :: Float -> FloatW +unD (D x) = x + +un :: (FloatW -> FloatW) -> (Float -> Float) +un f x = D (f (unD x)) + +bin :: (FloatW -> FloatW -> FloatW) -> (Float -> Float -> Float) +bin f x y = D (f (unD x) (unD y)) + +cmp :: (FloatW -> FloatW -> Bool) -> (Float -> Float -> Bool) +cmp f x y = f (unD x) (unD y) + +instance Num Float where + (+) = bin (+) + (-) = bin (-) + (*) = bin (*) + negate = un negate + abs = un abs + signum = un signum + fromInteger = D . fromInteger + +instance Fractional Float where + (/) = bin (/) + fromRational = D . fromRational + +instance Eq Float where + (==) = cmp (==) + (/=) = cmp (/=) + +instance Ord Float where + (<) = cmp (<) + (<=) = cmp (<=) + (>) = cmp (>) + (>=) = cmp (>=) + +instance Show Float where + showsPrec p = showsPrec p . unD + +instance Read Float where + readsPrec p = map (\ (x, s) -> (D x, s)) . readsPrec p + +instance Real Float where + toRational = toRational . unD + +instance RealFrac Float where + properFraction x = (a, D b) where (a, b) = properFraction (unD x) + +instance Floating Float where + pi = D pi + log = un log + exp = un exp + sqrt = un sqrt + sin = un sin + cos = un cos + tan = un tan + asin = un asin + acos = un acos + atan = un atan + +instance RealFloat Float where + floatRadix = floatRadix . unD + floatDigits = floatDigits . unD + floatRange = floatRange . unD + decodeFloat = decodeFloat . unD + encodeFloat e = D . encodeFloat e + isNaN = isNaN . unD + isInfinite = isInfinite . unD + isDenormalized = isDenormalized . unD + isNegativeZero = isNegativeZero . unD + isIEEE = isIEEE . unD + atan2 = bin atan2 diff --git a/lib/Data/Foldable.hs b/lib/Data/Foldable.hs --- a/lib/Data/Foldable.hs +++ b/lib/Data/Foldable.hs @@ -182,7 +182,7 @@ foldl' = List.foldl' foldl1 = List.foldl1 foldr = List.foldr - foldr' = List.foldr' + --foldr' = List.foldr' foldr1 = List.foldr1 foldMap = (mconcat .) . List.map fold = mconcat diff --git a/lib/Data/IntMap.hs b/lib/Data/IntMap.hs --- a/lib/Data/IntMap.hs +++ b/lib/Data/IntMap.hs @@ -5,12 +5,14 @@ empty, lookup, insert, fromList, toList, insertWith, (!), keys ) where import Prelude hiding(lookup) +import {-# SOURCE #-} Data.Typeable data IntMap a = Empty | Leaf Int a | Node (IntMap a) (IntMap a) (IntMap a) (IntMap a) --Xderiving (Show) + deriving (Typeable) -- This works for y>0 divModX :: Int -> Int -> (Int, Int) diff --git a/lib/Data/Integer_Type.hs b/lib/Data/Integer_Type.hs --- a/lib/Data/Integer_Type.hs +++ b/lib/Data/Integer_Type.hs @@ -3,6 +3,7 @@ module Data.Integer_Type(module Data.Integer_Type) where import Prelude() -- do not import Prelude import Primitives +import {-# SOURCE #-} Control.Error import Data.Bool_Type import Data.List_Type @@ -19,7 +20,7 @@ else if _wordSize `primIntEQ` 32 then (32768::Int) -- 2^15, this is used so multiplication of two digits doesn't overflow a 32 bit Int else - primError "Integer: unsupported word size" + error "Integer: unsupported word size" -- Sadly, we also need a bunch of functions. diff --git a/lib/Data/List.hs b/lib/Data/List.hs --- a/lib/Data/List.hs +++ b/lib/Data/List.hs @@ -1,18 +1,42 @@ -- Copyright 2023 Lennart Augustsson -- See LICENSE file for full license. module Data.List( - module Data.List, - module Data.List_Type + module Data.List_Type, + (++), head, last, tail, init, uncons, unsnoc, singleton, null, length, + map, reverse, intersperse, intercalate, transpose, subsequences, permutations, + foldl, foldl', foldl1, foldl1', foldr, foldr1, + concat, concatMap, and, or, any, all, sum, product, maximum, minimum, + scanl, scanl', scanl1, scanr, scanr1, + mapAccumL, mapAccumR, + iterate, iterate', repeat, replicate, cycle, + unfoldr, + take, drop, splitAt, takeWhile, dropWhile, dropWhileEnd, span, break, + stripPrefix, group, inits, tails, + isPrefixOf, isSuffixOf, isInfixOf, isSubsequenceOf, + elem, notElem, lookup, + find, filter, partition, + (!?), (!!), elemIndex, elemIndices, findIndex, findIndices, + zip, zip3, zip4, zip5, zip6, zip7, + zipWith, zipWith3, zipWith4, zipWith5, zipWith6, zipWith7, + unzip, unzip3, unzip4, unzip5, unzip6, unzip7, + lines, words, unlines, unwords, + nub, delete, (\\), union, intersect, + sort, sortOn, insert, + nubBy, deleteBy, deleteFirstsBy, unionBy, intersectBy, groupBy, + sortBy, insertBy, maximumBy, minimumBy, + genericLength, genericTake, genericDrop, genericSplitAt, genericIndex, genericReplicate, ) where import Prelude() -- do not import Prelude import Primitives import Control.Applicative import Control.Error import Data.Bool +import Data.Char import Data.Eq import Data.Function import Data.Functor import Data.Int +import Data.Integral import Data.List_Type import Data.Maybe_Type import Data.Monoid @@ -82,11 +106,13 @@ rec (x : xs) = f x (rec xs) in rec +{- foldr' :: forall a b . (a -> b -> b) -> b -> [a] -> b foldr' f z [] = z foldr' f z (x:xs) = let y = foldr f z xs in y `seq` f x y +-} foldr1 :: forall a . (a -> a -> a) -> [a] -> a foldr1 f = @@ -110,6 +136,10 @@ foldl1 _ [] = error "foldl1" foldl1 f (x : xs) = foldl f x xs +foldl1' :: forall a . (a -> a -> a) -> [a] -> a +foldl1' _ [] = error "foldl1'" +foldl1' f (x : xs) = foldl' f x xs + minimum :: forall a . Ord a => [a] -> a minimum [] = error "minimum" minimum (x:ys) = foldr (\ y m -> if y < m then y else m) x ys @@ -170,14 +200,42 @@ zip3 :: forall a b c . [a] -> [b] -> [c] -> [(a, b, c)] zip3 = zipWith3 (\ x y z -> (x, y, z)) -zipWith :: forall a b c . (a -> b -> c) -> [a] -> [b] -> [c] +zip4 :: forall a b c d . [a] -> [b] -> [c] -> [d] -> [(a, b, c, d)] +zip4 = zipWith4 (\ x y z w -> (x, y, z, w)) + +zip5 :: forall a b c d e . [a] -> [b] -> [c] -> [d] -> [e] -> [(a, b, c, d, e)] +zip5 = zipWith5 (\ x y z w u -> (x, y, z, w, u)) + +zip6 :: forall a b c d e f . [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [(a, b, c, d, e, f)] +zip6 = zipWith6 (\ x y z w u v -> (x, y, z, w, u, v)) + +zip7 :: forall a b c d e f g . [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [g] -> [(a, b, c, d, e, f, g)] +zip7 = zipWith7 (\ x y z w u v t -> (x, y, z, w, u, v, t)) + +zipWith :: forall a b r . (a -> b -> r) -> [a] -> [b] -> [r] zipWith f (x:xs) (y:ys) = f x y : zipWith f xs ys zipWith _ _ _ = [] -zipWith3 :: forall a b c d . (a -> b -> c -> d) -> [a] -> [b] -> [c] -> [d] +zipWith3 :: forall a b c r . (a -> b -> c -> r) -> [a] -> [b] -> [c] -> [r] zipWith3 f (x:xs) (y:ys) (z:zs) = f x y z : zipWith3 f xs ys zs zipWith3 _ _ _ _ = [] +zipWith4 :: forall a b c d r . (a -> b -> c -> d -> r) -> [a] -> [b] -> [c] -> [d] -> [r] +zipWith4 f (x:xs) (y:ys) (z:zs) (w:ws) = f x y z w : zipWith4 f xs ys zs ws +zipWith4 _ _ _ _ _ = [] + +zipWith5 :: forall a b c d e r . (a -> b -> c -> d -> e -> r) -> [a] -> [b] -> [c] -> [d] -> [e] -> [r] +zipWith5 f (x:xs) (y:ys) (z:zs) (w:ws) (u:us) = f x y z w u : zipWith5 f xs ys zs ws us +zipWith5 _ _ _ _ _ _ = [] + +zipWith6 :: forall a b c d e f r . (a -> b -> c -> d -> e -> f -> r) -> [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [r] +zipWith6 f (x:xs) (y:ys) (z:zs) (w:ws) (u:us) (v:vs) = f x y z w u v : zipWith6 f xs ys zs ws us vs +zipWith6 _ _ _ _ _ _ _ = [] + +zipWith7 :: forall a b c d e f g r . (a -> b -> c -> d -> e -> f -> g -> r) -> [a] -> [b] -> [c] -> [d] -> [e] -> [f] -> [g] -> [r] +zipWith7 f (x:xs) (y:ys) (z:zs) (w:ws) (u:us) (v:vs) (t:ts) = f x y z w u v t : zipWith7 f xs ys zs ws us vs ts +zipWith7 _ _ _ _ _ _ _ _ = [] + -- XXX not as lazy as it could be unzip :: forall a b . [(a, b)] -> ([a], [b]) unzip xys = (map fst xys, map snd xys) -- this version is slightly faster than the other two @@ -205,6 +263,38 @@ case unzip3 xyzs of (xs, ys, zs) -> (x:xs, y:ys, z:zs) +unzip4 :: forall a b c d . [(a, b, c, d)] -> ([a], [b], [c], [d]) +unzip4 axyzs = + case axyzs of + [] -> ([], [], [], []) + (x, y, z, w) : xyzs -> + case unzip4 xyzs of + (xs, ys, zs, ws) -> (x:xs, y:ys, z:zs, w:ws) + +unzip5 :: forall a b c d e . [(a, b, c, d, e)] -> ([a], [b], [c], [d], [e]) +unzip5 axyzs = + case axyzs of + [] -> ([], [], [], [], []) + (x, y, z, w, v) : xyzs -> + case unzip5 xyzs of + (xs, ys, zs, ws, vs) -> (x:xs, y:ys, z:zs, w:ws, v:vs) + +unzip6 :: forall a b c d e f . [(a, b, c, d, e, f)] -> ([a], [b], [c], [d], [e], [f]) +unzip6 axyzs = + case axyzs of + [] -> ([], [], [], [], [], []) + (x, y, z, w, v, u) : xyzs -> + case unzip6 xyzs of + (xs, ys, zs, ws, vs, us) -> (x:xs, y:ys, z:zs, w:ws, v:vs, u:us) + +unzip7 :: forall a b c d e f g . [(a, b, c, d, e, f, g)] -> ([a], [b], [c], [d], [e], [f], [g]) +unzip7 axyzs = + case axyzs of + [] -> ([], [], [], [], [], [], []) + (x, y, z, w, v, u, t) : xyzs -> + case unzip7 xyzs of + (xs, ys, zs, ws, vs, us, ts) -> (x:xs, y:ys, z:zs, w:ws, v:vs, u:us, t:ts) + stripPrefix :: forall a . Eq a => [a] -> [a] -> Maybe [a] stripPrefix = stripPrefixBy (==) @@ -228,6 +318,12 @@ isSuffixOfBy :: forall a . (a -> a -> Bool) -> [a] -> [a] -> Bool isSuffixOfBy eq n h = isPrefixOfBy eq (reverse n) (reverse h) +isInfixOf :: forall a . Eq a => [a] -> [a] -> Bool +isInfixOf = isInfixOfBy (==) + +isInfixOfBy :: forall a . (a -> a -> Bool) -> [a] -> [a] -> Bool +isInfixOfBy eq cs ds = any (isPrefixOfBy eq cs) (inits ds) + splitAt :: forall a . Int -> [a] -> ([a], [a]) splitAt n xs = (take n xs, drop n xs) @@ -254,6 +350,9 @@ else x : xs +dropWhileEnd :: (a -> Bool) -> [a] -> [a] +dropWhileEnd p = foldr (\x xs -> if p x && null xs then [] else x : xs) [] + span :: forall a . (a -> Bool) -> [a] -> ([a], [a]) span p = let @@ -279,6 +378,13 @@ tail [] = error "tail" tail (_:ys) = ys +tails :: forall a . [a] -> [[a]] +tails [] = [[]] +tails xxs@(_:xs) = xxs : tails xs + +inits :: forall a . [a] -> [[a]] +inits = map reverse . reverse . tails . reverse + intersperse :: forall a . a -> [a] -> [a] intersperse _ [] = [] intersperse sep (a:as) = a : prepend as @@ -292,12 +398,12 @@ elem :: forall a . (Eq a) => a -> [a] -> Bool elem = elemBy (==) +elemBy :: (a -> a -> Bool) -> a -> [a] -> Bool +elemBy eq a = any (eq a) + notElem :: forall a . (Eq a) => a -> [a] -> Bool notElem a as = not (elem a as) -elemBy :: forall a . (a -> a -> Bool) -> a -> [a] -> Bool -elemBy eq a = any (eq a) - find :: forall a . (a -> Bool) -> [a] -> Maybe a find p [] = Nothing find p (x:xs) = if p x then Just x else find p xs @@ -323,12 +429,17 @@ intersectBy :: forall a . (a -> a -> Bool) -> [a] -> [a] -> [a] intersectBy eq xs ys = filter (\ x -> elemBy eq x ys) xs +delete :: (Eq a) => a -> [a] -> [a] +delete = deleteBy (==) + deleteBy :: forall a . (a -> a -> Bool) -> a -> [a] -> [a] deleteBy _ _ [] = [] deleteBy eq x (y:ys) = if eq x y then ys else y : deleteBy eq x ys +{- deleteAllBy :: forall a . (a -> a -> Bool) -> a -> [a] -> [a] deleteAllBy eq x = filter (not . eq x) +-} nub :: forall a . Eq a => [a] -> [a] nub = nubBy (==) @@ -341,11 +452,12 @@ replicate n x = take n (repeat x) repeat :: forall a . a -> [a] -repeat x = - let - xs = x:xs - in xs +repeat x = let xs = x:xs in xs +cycle :: [a] -> [a] +cycle [] = error "cycle: []" +cycle xs = let xs' = xs ++ xs' in xs' + infix 5 \\ (\\) :: forall a . Eq a => [a] -> [a] -> [a] (\\) = deleteFirstsBy (==) @@ -353,9 +465,11 @@ deleteFirstsBy :: forall a . (a -> a -> Bool) -> [a] -> [a] -> [a] deleteFirstsBy eq = foldl (flip (deleteBy eq)) +{- -- Delete all from the second argument from the first argument deleteAllsBy :: forall a . (a -> a -> Bool) -> [a] -> [a] -> [a] deleteAllsBy eq = foldl (flip (deleteAllBy eq)) +-} infixl 9 !! (!!) :: forall a . [a] -> Int -> a @@ -368,6 +482,17 @@ nth n (x:xs) = if n == (0::Int) then x else nth (n - (1::Int)) xs in nth i axs +infixl 9 !? +(!?) :: forall a . [a] -> Int -> Maybe a +(!?) axs i = + if i < (0::Int) then + Nothing + else + let + nth _ [] = Nothing + nth n (x:xs) = if n == (0::Int) then Just x else nth (n - (1::Int)) xs + in nth i axs + partition :: forall a . (a -> Bool) -> [a] -> ([a], [a]) partition p xs = (filter p xs, filter (not . p) xs) @@ -404,6 +529,11 @@ iterate :: forall a . (a -> a) -> a -> [a] iterate f x = x : iterate f (f x) +iterate' :: (a -> a) -> a -> [a] +iterate' f x = + let x' = f x + in x' `seq` (x : iterate' f x') + substString :: forall a . Eq a => [a] -> [a] -> [a] -> [a] substString _ _ [] = [] substString from to xs@(c:cs) | Just rs <- stripPrefix from xs = to ++ substString from to rs @@ -416,3 +546,187 @@ groupBy _ [] = [] groupBy eq (x:xs) = (x:ys) : groupBy eq zs where (ys,zs) = span (eq x) xs + +scanl :: (b -> a -> b) -> b -> [a] -> [b] +scanl f = rec + where rec q ls = q : case ls of + [] -> [] + x:xs -> rec (f q x) xs + +scanl' :: (b -> a -> b) -> b -> [a] -> [b] +scanl' f = rec + where rec q ls = q : case ls of + [] -> [] + x:xs -> let y = f q x in seq y (rec y xs) + +scanl1 :: (a -> a -> a) -> [a] -> [a] +scanl1 f (x:xs) = scanl f x xs +scanl1 _ [] = [] + +scanr :: (a -> b -> b) -> b -> [a] -> [b] +scanr f z = rec + where rec [] = [z] + rec (x:xs) = f x q : qs + where qs@(q:_) = rec xs + +scanr1 :: (a -> a -> a) -> [a] -> [a] +scanr1 f = rec + where rec [] = [] + rec [x] = [x] + rec (x:xs) = f x q : qs + where qs@(q:_) = rec xs + +isSubsequenceOf :: (Eq a) => [a] -> [a] -> Bool +isSubsequenceOf [] _ = True +isSubsequenceOf _ [] = False +isSubsequenceOf a@(x:a') (y:b) | x == y = isSubsequenceOf a' b + | otherwise = isSubsequenceOf a b + +uncons :: [a] -> Maybe (a, [a]) +uncons [] = Nothing +uncons (x:xs) = Just (x, xs) + +unsnoc :: [a] -> Maybe ([a], a) +unsnoc [] = Nothing +unsnoc xs = Just (init xs, last xs) + +singleton :: a -> [a] +singleton x = [x] + +transpose :: [[a]] -> [[a]] +transpose [] = [] +transpose ([] : xss) = transpose xss +transpose ((x : xs) : xss) = combine x hds xs tls + where + (hds, tls) = unzip [(hd, tl) | hd : tl <- xss] + combine y h ys t = (y:h) : transpose (ys:t) + +subsequences :: [a] -> [[a]] +subsequences xs = [] : sub xs + where sub [] = [] + sub (x:xs) = [x] : foldr f [] (sub xs) + where f ys r = ys : (x : ys) : r + +permutations :: [a] -> [[a]] +permutations axs = axs : perms axs [] + where + perms [] _ = [] + perms (t:ts) is = foldr interleave (perms ts (t:is)) (permutations is) + where + interleave xs r = snd $ interleave' id xs r + interleave' _ [] r = (ts, r) + interleave' f (y:ys) r = let (us, zs) = interleave' (f . (y:)) ys r + in (y:us, f (t:y:us) : zs) + +mapAccumL :: (acc -> x -> (acc, y)) -> acc -> [x] -> (acc, [y]) +mapAccumL _ s [] = (s, []) +mapAccumL f s (x:xs) = (s'',y:ys) + where (s', y ) = f s x + (s'',ys) = mapAccumL f s' xs + +mapAccumR :: (acc -> x -> (acc, y)) -> acc -> [x] -> (acc, [y]) +mapAccumR _ s [] = (s, []) +mapAccumR f s (x:xs) = (s'', y:ys) + where (s'',y ) = f s' x + (s', ys) = mapAccumR f s xs + +unfoldr :: (b -> Maybe (a, b)) -> b -> [a] +unfoldr gen b = + case gen b of + Nothing -> [] + Just (a, b') -> a : unfoldr gen b' + +elemIndex :: Eq a => a -> [a] -> Maybe Int +elemIndex x xs = findIndex (x ==) xs + +elemIndices :: Eq a => a -> [a] -> [Int] +elemIndices x xs = findIndices (x ==) xs + +findIndices :: (a -> Bool) -> [a] -> [Int] +findIndices p = rec 0 + where rec _ [] = [] + rec i (x:xs) | p x = i : rec (i+1) xs + | otherwise = rec (i+1) xs + +findIndex :: (a -> Bool) -> [a] -> Maybe Int +findIndex p xs = + case findIndices p xs of + [] -> Nothing + i : _ -> Just i + +lines :: String -> [String] +lines [] = [] +lines s = + case span (not . (== '\n')) s of + (l, s') -> + case s' of + [] -> [l] + _:s'' -> l : lines s'' + +unlines :: [String] -> String +unlines = concatMap (++ ['\n']) + +words :: String -> [String] +words s = + case dropWhile isSpace s of + [] -> [] + s' -> w : words s'' + where (w, s'') = span (not . isSpace) s' + +unwords :: [String] -> String +unwords ss = intercalate [' '] ss + +sortOn :: Ord b => (a -> b) -> [a] -> [a] +sortOn f = map snd . sortBy (comparing fst) . map (\x -> let y = f x in y `seq` (y, x)) + +insert :: Ord a => a -> [a] -> [a] +insert e ls = insertBy (compare) e ls + +insertBy :: (a -> a -> Ordering) -> a -> [a] -> [a] +insertBy _ x [] = [x] +insertBy cmp x ys@(y:ys') = + case cmp x y of + GT -> y : insertBy cmp x ys' + _ -> x : ys + +maximumBy :: (a -> a -> Ordering) -> [a] -> a +maximumBy _ [] = error "List.maximumBy: []" +maximumBy cmp xs = foldl1 maxBy xs + where + maxBy x y = case cmp x y of + GT -> x + _ -> y + +minimumBy :: (a -> a -> Ordering) -> [a] -> a +minimumBy _ [] = error "List.minimumBy: []" +minimumBy cmp xs = foldl1 minBy xs + where + minBy x y = case cmp x y of + GT -> y + _ -> x + +genericLength :: (Num i) => [a] -> i +genericLength [] = 0 +genericLength (_:l) = 1 + genericLength l + +genericTake :: (Integral i, Ord i) => i -> [a] -> [a] +genericTake n _ | n <= 0 = [] +genericTake _ [] = [] +genericTake n (x:xs) = x : genericTake (n-1) xs + +genericDrop :: (Integral i, Ord i) => i -> [a] -> [a] +genericDrop n xs | n <= 0 = xs +genericDrop _ [] = [] +genericDrop n (_:xs) = genericDrop (n-1) xs + +genericSplitAt :: (Integral i, Ord i) => i -> [a] -> ([a], [a]) +genericSplitAt n xs = (genericTake n xs, genericDrop n xs) + +genericIndex :: (Integral i, Ord i) => [a] -> i -> a +genericIndex (x:_) 0 = x +genericIndex (_:xs) n | n > 0 = genericIndex xs (n-1) + | otherwise = error "List.genericIndex: < 0" +genericIndex _ _ = error "List.genericIndex: index too large." + +genericReplicate :: (Integral i, Ord i) => i -> a -> [a] +genericReplicate n x = genericTake n (repeat x) diff --git a/lib/Data/MArray.hs b/lib/Data/MArray.hs new file mode 100644 --- /dev/null +++ b/lib/Data/MArray.hs @@ -0,0 +1,38 @@ +module Data.Array ( + module Data.Ix, + Array, + array, + listArray, + accumArray, + (!), + bounds, + indices, + elems, + assocs, + (//), + accum, + ixmap, + ) where + +import Data.Ix + + -- Array instances: + -- + -- Ix a => Functor (Array a) + -- (Ix a, Eq b) => Eq (Array a b) + -- (Ix a, Ord b) => Ord (Array a b) + -- (Ix a, Show a, Show b) => Show (Array a b) + -- (Ix a, Read a, Read b) => Read (Array a b) + -- + + array, -- :: (Ix a) => (a,a) -> [(a,b)] -> Array a b + listArray, -- :: (Ix a) => (a,a) -> [b] -> Array a b + accumArray, -- :: (Ix a) => (b -> c -> b) -> b -> (a,a) -> [(a,c)] -> Array a b + (!), -- :: (Ix a) => Array a b -> a -> b + bounds, -- :: (Ix a) => Array a b -> (a,a) + indices, -- :: (Ix a) => Array a b -> [a] + elems, -- :: (Ix a) => Array a b -> [b] + assocs, -- :: (Ix a) => Array a b -> [(a,b)] + (//), -- :: (Ix a) => Array a b -> [(a,b)] -> Array a b + accum, -- :: (Ix a) => (b -> c -> b) -> Array a b -> [(a,c)] -> Array a b + ixmap, -- :: (Ix a, Ix b) => (a,a) -> (a -> b) -> Array b c -> Array a b diff --git a/lib/Data/Map.hs b/lib/Data/Map.hs --- a/lib/Data/Map.hs +++ b/lib/Data/Map.hs @@ -5,10 +5,11 @@ -- module Data.Map( Map, + insert, insertWith, fromListWith, fromList, lookup, delete, insertBy, insertByWith, fromListByWith, fromListBy, lookupBy, empty, elems, size, toList, deleteBy, ) where -import Prelude() -- do not import Prelude -import Prelude hiding (lookupBy, deleteBy) +import Prelude hiding (lookup) +import {-# SOURCE #-} Data.Typeable data Map k a = Nil -- empty tree @@ -20,6 +21,7 @@ a -- element stored in the node (Map k a) -- right subtree --Xderiving(Show) + deriving (Typeable) empty :: forall k a . Map k a empty = Nil @@ -158,3 +160,21 @@ isEQ :: Ordering -> Bool isEQ EQ = True isEQ _ = False + +insert :: (Ord k) => k -> a -> Map k a -> Map k a +insert = insertBy compare + +insertWith :: (Ord k) => (a -> a -> a) -> k -> a -> Map k a -> Map k a +insertWith = insertByWith compare + +fromListWith :: (Ord k) => (v -> v -> v) -> [(k, v)] -> Map k v +fromListWith = fromListByWith compare + +fromList :: (Ord k) => [(k, v)] -> Map k v +fromList = fromListBy compare + +lookup :: (Ord k) => k -> Map k a -> Maybe a +lookup = lookupBy compare + +delete :: (Ord k) => k -> Map k a -> Map k a +delete = deleteBy compare diff --git a/lib/Data/Ord.hs b/lib/Data/Ord.hs --- a/lib/Data/Ord.hs +++ b/lib/Data/Ord.hs @@ -47,3 +47,6 @@ instance Bounded Ordering where minBound = LT maxBound = GT + +comparing :: (Ord b) => (a -> b) -> a -> a -> Ordering +comparing f x y = compare (f x) (f y) diff --git a/lib/Data/Ratio.hs b/lib/Data/Ratio.hs --- a/lib/Data/Ratio.hs +++ b/lib/Data/Ratio.hs @@ -4,16 +4,13 @@ numerator, denominator, rationalInfinity, rationalNaN, - Rational, + rationalMinusZero, ) where import Prelude() -- do not import Prelude -import Primitives -import Control.Error import Data.Bool import Data.Eq import Data.Fractional import Data.Function ---import Data.Int import Data.Integer import Data.Integral import Data.Num @@ -22,10 +19,26 @@ import Text.Show {- in Data.Ratio_Type -data Ratio a = (:%) a a -- XXX should be strict - -type Rational = Ratio Integer +data Ratio a = !a :% !a -} +-- The value x :% y represents the rational number x/y. +-- The y is always >= 0, and the number is in reduced for, +-- i.e., there are no common factor > 1 for x and y. +-- In addition to the ordinary rationals, we use the "wheel" +-- extension of the rationals. +-- This means that the / operation is total. In particular +-- x/0 == 1/0 == rationalInfinity, when x/=0 +-- 0/0 == rationalNaN (often called perp for wheels). +-- Wheels obey most of the usual algebraic laws for rationals, +-- but the distributive law has to be augmented to work for all +-- numbers. +-- (x + y) * z + 0*z == x*z + y*z +-- When z is a normal rational number the is clearly the same +-- as the usual distributive law. +-- +-- NOTE. Experimentally, we extend this with: +-- x/0 == 1/0 when x > 0 +-- x/0 == -1/0 when x < 0 instance forall a . Eq a => Eq (Ratio a) where (x :% y) == (x' :% y') = x == x' && y == y' @@ -36,7 +49,7 @@ (x :% y) >= (x' :% y') = x * y' >= x' * y (x :% y) > (x' :% y') = x * y' > x' * y -instance forall a . (Integral a) => Num (Ratio a) where +instance forall a . (Integral a, Ord a) => Num (Ratio a) where (x:%y) + (x':%y') = reduce (x*y' + x'*y) (y*y') (x:%y) - (x':%y') = reduce (x*y' - x'*y) (y*y') (x:%y) * (x':%y') = reduce (x * x') (y * y') @@ -46,11 +59,10 @@ fromInteger x = fromInteger x :% 1 instance forall a . (Integral a, Ord a) => Fractional (Ratio a) where - (x:%y) / (x':%y') = (x*y') % (y*x') + (x:%y) / (x':%y') = reduce (x*y') (y*x') recip (x:%y) - | y == 0 = error "Data.Ratio.recip: division by 0" - | x < 0 = negate y :% negate x - | otherwise = y :% x + | x < 0 = (-y) :% (-x) + | otherwise = y :% x fromRational (x:%y) = fromInteger x % fromInteger y instance forall a . (Show a) => Show (Ratio a) where @@ -65,17 +77,17 @@ rationalNaN :: Rational rationalNaN = 0 :% 0 +rationalMinusZero :: Rational +rationalMinusZero = 0 :% (-1) + infixl 7 % -(%) :: forall a . (Integral a) => a -> a -> Ratio a -x % y = reduce (x * signum y) (abs y) +(%) :: forall a . (Integral a, Ord a) => a -> a -> Ratio a +x % y = reduce x y -reduce :: forall a . (Integral a) => a -> a -> Ratio a -reduce x y = - if y == 0 then - error "Data.Ratio.%: 0 denominator" - else - let d = gcd x y - in (x `quot` d) :% (y `quot` d) +reduce :: forall a . (Ord a, Integral a) => a -> a -> Ratio a +reduce x y | y > 0 = let d = gcd x y in (x `quot` d) :% (y `quot` d) + | y < 0 = reduce (- x) (- y) + | otherwise = signum x :% 0 numerator :: forall a . Ratio a -> a numerator (x :% _) = x diff --git a/lib/Data/String.hs b/lib/Data/String.hs --- a/lib/Data/String.hs +++ b/lib/Data/String.hs @@ -16,25 +16,3 @@ instance IsString String where fromString s = s - -lines :: String -> [String] -lines "" = [] -lines s = - case span (not . (== '\n')) s of - (l, s') -> - case s' of - [] -> [l] - _:s'' -> l : lines s'' - -unlines :: [String] -> String -unlines = concatMap (++ "\n") - -words :: String -> [String] -words s = - case dropWhile isSpace s of - "" -> [] - s' -> w : words s'' - where (w, s'') = span (not . isSpace) s' - -unwords :: [String] -> String -unwords ss = intercalate " " ss diff --git a/lib/Data/Time/Clock.hs b/lib/Data/Time/Clock.hs --- a/lib/Data/Time/Clock.hs +++ b/lib/Data/Time/Clock.hs @@ -5,7 +5,7 @@ getCurrentTime, ) where import Prelude -import System.IO +import System.IO.TimeMilli -- Second since 1970, probably newtype UTCTime = UTCTime Int diff --git a/lib/Data/Typeable.hs b/lib/Data/Typeable.hs --- a/lib/Data/Typeable.hs +++ b/lib/Data/Typeable.hs @@ -21,9 +21,7 @@ import Prelude import Control.Monad.ST import Data.Complex -import Data.IntMap import Data.IORef -import Data.Map import Data.Proxy import Data.Ratio import Data.STRef @@ -162,7 +160,6 @@ instance Typeable Ptr where typeRep = prim "Ptr" instance Typeable IOArray where typeRep = prim "IOArray" instance Typeable IORef where typeRep = nullary "Data.IORef" "IORef" -instance Typeable IntMap where typeRep = nullary "Data.IntMap" "IntMap" instance Typeable [] where typeRep = nullary "Data.List_Type" "[]" instance Typeable Complex where typeRep = nullary "Data.Complex" "Complex" @@ -176,7 +173,6 @@ instance Typeable (,) where typeRep = nullary "Data.Tuple" "," instance Typeable (->) where typeRep = prim "->" instance Typeable Either where typeRep = nullary "Data.Either" "Either" -instance Typeable Map where typeRep = nullary "Data.Map" "Map" instance Typeable ST where typeRep = nullary "Control.Monad.ST" "ST" instance Typeable STRef where typeRep = nullary "Data.STRef" "STRef" diff --git a/lib/Data/Version.hs b/lib/Data/Version.hs --- a/lib/Data/Version.hs +++ b/lib/Data/Version.hs @@ -3,6 +3,7 @@ showVersion, makeVersion ) where +import Data.List(intercalate) data Version = Version { versionBranch :: [Int] } deriving (Show, Eq, Ord) diff --git a/lib/Debug/Trace.hs b/lib/Debug/Trace.hs --- a/lib/Debug/Trace.hs +++ b/lib/Debug/Trace.hs @@ -9,5 +9,5 @@ return a ) -traceM :: forall m a . Monad m => String -> m () +traceM :: forall m . Monad m => String -> m () traceM s = trace s (return ()) diff --git a/lib/Foreign/ForeignPtr.hs b/lib/Foreign/ForeignPtr.hs new file mode 100644 --- /dev/null +++ b/lib/Foreign/ForeignPtr.hs @@ -0,0 +1,87 @@ +module Foreign.ForeignPtr ( + ForeignPtr, + FinalizerPtr, + newForeignPtr, + newForeignPtr_, + addForeignPtrFinalizer, + withForeignPtr, + -- finalizeForeignPtr, + touchForeignPtr, + castForeignPtr, + plusForeignPtr, + mallocForeignPtr, + mallocForeignPtrBytes, + mallocForeignPtrArray, + mallocForeignPtrArray0, + ) where +import Primitives +import Foreign.Ptr +import Foreign.Storable +import Foreign.Marshal.Alloc +import Foreign.Marshal.Array + +instance Eq (ForeignPtr a) where + p == q = unsafeForeignPtrToPtr p == unsafeForeignPtrToPtr q + +instance Ord (ForeignPtr a) where + compare p q = compare (unsafeForeignPtrToPtr p) (unsafeForeignPtrToPtr q) + +instance Show (ForeignPtr a) where + showsPrec p f = showsPrec p (unsafeForeignPtrToPtr f) + +unsafeForeignPtrToPtr :: ForeignPtr a -> Ptr a +unsafeForeignPtrToPtr = primitive "fp2p" + +type FinalizerPtr a = FunPtr (Ptr a -> IO ()) + +foreign import ccall "&free" c_freefun_io :: IO (FinalizerPtr ()) + +c_freefun :: forall a . FinalizerPtr a +c_freefun = primUnsafeCoerce (primPerformIO c_freefun_io) + +mallocForeignPtr :: Storable a => IO (ForeignPtr a) +mallocForeignPtr = do + ptr <- malloc + newForeignPtr c_freefun ptr + +mallocForeignPtrBytes :: Int -> IO (ForeignPtr a) +mallocForeignPtrBytes size = do + ptr <- mallocBytes size + newForeignPtr c_freefun ptr + +mallocForeignPtrArray :: Storable a => Int -> IO (ForeignPtr a) +mallocForeignPtrArray size = do + ptr <- mallocArray size + newForeignPtr c_freefun ptr + +mallocForeignPtrArray0 :: Storable a => Int -> IO (ForeignPtr a) +mallocForeignPtrArray0 size = do + ptr <- mallocArray0 size + newForeignPtr c_freefun ptr + +addForeignPtrFinalizer :: FinalizerPtr a -> ForeignPtr a -> IO () +addForeignPtrFinalizer = primitive "fpfin" + +newForeignPtr :: FinalizerPtr a -> Ptr a -> IO (ForeignPtr a) +newForeignPtr f p = do + fp <- newForeignPtr_ p + addForeignPtrFinalizer f fp + return fp + +newForeignPtr_ :: Ptr a -> IO (ForeignPtr a) +newForeignPtr_ = primitive "fpnew" + +withForeignPtr :: ForeignPtr a -> (Ptr a -> IO b) -> IO b +withForeignPtr fp io = do + b <- io (unsafeForeignPtrToPtr fp) + touchForeignPtr fp + return b + +touchForeignPtr :: ForeignPtr a -> IO () +touchForeignPtr fp = seq fp (return ()) + +castForeignPtr :: ForeignPtr a -> ForeignPtr b +castForeignPtr = primUnsafeCoerce + +plusForeignPtr :: ForeignPtr a -> Int -> ForeignPtr b +plusForeignPtr = primitive "fp+" diff --git a/lib/Foreign/Ptr.hs b/lib/Foreign/Ptr.hs --- a/lib/Foreign/Ptr.hs +++ b/lib/Foreign/Ptr.hs @@ -8,26 +8,63 @@ import Data.Word import Data.Eq import Data.Function +import Data.Ord +import Numeric(showHex) import Text.Show instance forall a . Eq (Ptr a) where - p == q = primPtrEQ p q + p == q = primPtrToWord p == primPtrToWord q +instance forall a . Ord (Ptr a) where + p `compare` q = primPtrToWord p `compare` primPtrToWord q + p < q = primPtrToWord p < primPtrToWord q + p <= q = primPtrToWord p <= primPtrToWord q + p > q = primPtrToWord p > primPtrToWord q + p >= q = primPtrToWord p >= primPtrToWord q + instance forall a . Show (Ptr a) where - showsPrec _ p = showString "PTR#" . showsPrec 0 (primPtrToWord p) + showsPrec _ p = showString "0x" . showHex (primPtrToWord p) nullPtr :: forall a . Ptr a -nullPtr = primPtrNull +nullPtr = primIntToPtr (0::Int) castPtr :: forall a b . Ptr a -> Ptr b -castPtr = primPtrCast +castPtr = primUnsafeCoerce plusPtr :: forall a b . Ptr a -> Int -> Ptr b -plusPtr = primPtrAdd +plusPtr p i = primIntToPtr (primPtrToInt p `primIntAdd` i) minusPtr :: forall a b . Ptr a -> Ptr b -> Int -minusPtr = primPtrSub +minusPtr p q = primPtrToInt p `primIntSub` primPtrToInt q ---instance forall a . Show (FunPtr a) where --- showsPrec _ p = showString "FUNPTR#" . showsPrec 0 (primPtrToWord p) +------- +instance forall a . Show (FunPtr a) where + showsPrec _ p = showString "0x" . showHex (primFunPtrToWord p) + +instance forall a . Eq (FunPtr a) where + p == q = primFunPtrToWord p == primFunPtrToWord q + +instance forall a . Ord (FunPtr a) where + p `compare` q = primFunPtrToWord p `compare` primFunPtrToWord q + p < q = primFunPtrToWord p < primFunPtrToWord q + p <= q = primFunPtrToWord p <= primFunPtrToWord q + p > q = primFunPtrToWord p > primFunPtrToWord q + p >= q = primFunPtrToWord p >= primFunPtrToWord q + +nullFunPtr :: forall a . FunPtr a +nullFunPtr = primIntToFunPtr (0::Int) + +castFunPtr :: forall a b . FunPtr a -> FunPtr b +castFunPtr = primUnsafeCoerce + +castFunPtrToPtr :: forall a b . FunPtr a -> Ptr b +castFunPtrToPtr = primFunPtrToPtr + +castPtrToFunPtr :: forall a b . Ptr a -> FunPtr b +castPtrToFunPtr = primPtrToFunPtr + +-------- + +type IntPtr = Int +type WordPtr = Word diff --git a/lib/Numeric/FormatFloat.hs b/lib/Numeric/FormatFloat.hs new file mode 100644 --- /dev/null +++ b/lib/Numeric/FormatFloat.hs @@ -0,0 +1,304 @@ +module Numeric.FormatFloat( + formatRealFloat, formatRealFloatAlt, + + showEFloat, + showFFloat, + showGFloat, + showFFloatAlt, + showGFloatAlt, + showHFloat, + + ) where +import Data.Char +import Numeric + +--showFloat :: (RealFloat a) => a -> ShowS +--showFloat x = showString (formatRealFloat FFGeneric Nothing x) + +-- These are the format types. This type is not exported. +data FFFormat = FFExponent | FFFixed | FFGeneric + +formatRealFloat :: (RealFloat a) => FFFormat -> Maybe Int -> a -> String +formatRealFloat fmt decs x = formatRealFloatAlt fmt decs False x + +formatRealFloatAlt :: (RealFloat a) => FFFormat -> Maybe Int -> Bool -> a + -> String +formatRealFloatAlt fmt decs alt x + | isNaN x = "NaN" + | isInfinite x = if x < 0 then "-Infinity" else "Infinity" + | x < 0 || isNegativeZero x = '-':doFmt fmt (floatToDigits (toInteger base) (-x)) + | otherwise = doFmt fmt (floatToDigits (toInteger base) x) + where + base = 10 + + doFmt format (is, e) = + let ds = map intToDigit is in + case format of + FFGeneric -> + doFmt (if e < 0 || e > 7 then FFExponent else FFFixed) + (is,e) + FFExponent -> + case decs of + Nothing -> + let show_e' = show (e-1) in + case ds of + "0" -> "0.0e0" + [d] -> d : ".0e" ++ show_e' + (d:ds') -> d : '.' : ds' ++ "e" ++ show_e' + [] -> error "formatRealFloat/doFmt/FFExponent: []" + Just d | d <= 0 -> + -- handle this case specifically since we need to omit the + -- decimal point as well (#15115). + -- Note that this handles negative precisions as well for consistency + -- (see #15509). + case is of + [0] -> "0e0" + _ -> + let + (ei,is') = roundTo base 1 is + n:_ = map intToDigit (if ei > 0 then init is' else is') + in n : 'e' : show (e-1+ei) + Just dec -> + let dec' = max dec 1 in + case is of + [0] -> '0' :'.' : take dec' (repeat '0') ++ "e0" + _ -> + let + (ei,is') = roundTo base (dec'+1) is + (d:ds') = map intToDigit (if ei > 0 then init is' else is') + in + d:'.':ds' ++ 'e':show (e-1+ei) + FFFixed -> + let + mk0 ls = case ls of { "" -> "0" ; _ -> ls} + in + case decs of + Nothing + | e <= 0 -> "0." ++ replicate (-e) '0' ++ ds + | otherwise -> + let + f 0 s rs = mk0 (reverse s) ++ '.':mk0 rs + f n s "" = f (n-1) ('0':s) "" + f n s (r:rs) = f (n-1) (r:s) rs + in + f e "" ds + Just dec -> + let dec' = max dec 0 in + if e >= 0 then + let + (ei,is') = roundTo base (dec' + e) is + (ls,rs) = splitAt (e+ei) (map intToDigit is') + in + mk0 ls ++ (if null rs && not alt then "" else '.':rs) + else + let + (ei,is') = roundTo base dec' (replicate (-e) 0 ++ is) + d:ds' = map intToDigit (if ei > 0 then is' else 0:is') + in + d : (if null ds' && not alt then "" else '.':ds') + + +roundTo :: Int -> Int -> [Int] -> (Int,[Int]) +roundTo base d is = + case f d True is of + x@(0,_) -> x + (1,xs) -> (1, 1:xs) + _ -> error "roundTo: bad Value" + where + b2 = base `quot` 2 + + f n _ [] = (0, replicate n 0) + f 0 e (x:xs) | x == b2 && e && all (== 0) xs = (0, []) -- Round to even when at exactly half the base + | otherwise = (if x >= b2 then 1 else 0, []) + f n _ (i:xs) + | i' == base = (1,0:ds) + | otherwise = (0,i':ds) + where + (c,ds) = f (n-1) (even i) xs + i' = c + i + +-- Based on "Printing Floating-Point Numbers Quickly and Accurately" +-- by R.G. Burger and R.K. Dybvig in PLDI 96. +-- This version uses a much slower logarithm estimator. It should be improved. + +-- | 'floatToDigits' takes a base and a non-negative 'RealFloat' number, +-- and returns a list of digits and an exponent. +-- In particular, if @x>=0@, and +-- +-- > floatToDigits base x = ([d1,d2,...,dn], e) +-- +-- then +-- +-- (1) @n >= 1@ +-- +-- (2) @x = 0.d1d2...dn * (base**e)@ +-- +-- (3) @0 <= di <= base-1@ + +floatToDigits :: (RealFloat a) => Integer -> a -> ([Int], Int) +floatToDigits _ 0 = ([0], 0) +floatToDigits base x = + let + (f0, e0) = decodeFloat x + (minExp0, _) = floatRange x + p = floatDigits x + b = floatRadix x + minExp = minExp0 - p -- the real minimum exponent + -- Haskell requires that f be adjusted so denormalized numbers + -- will have an impossibly low exponent. Adjust for this. + (f, e) = + let n = minExp - e0 in + if n > 0 then (f0 `quot` (expt b n), e0+n) else (f0, e0) + (r, s, mUp, mDn) = + if e >= 0 then + let be = expt b e in + if f == expt b (p-1) then + (f*be*b*2, 2*b, be*b, be) -- according to Burger and Dybvig + else + (f*be*2, 2, be, be) + else + if e > minExp && f == expt b (p-1) then + (f*b*2, expt b (-e+1)*2, b, 1) + else + (f*2, expt b (-e)*2, 1, 1) + k :: Int + k = + let + k0 :: Int + k0 = + if b == 2 && base == 10 then + -- logBase 10 2 is very slightly larger than 8651/28738 + -- (about 5.3558e-10), so if log x >= 0, the approximation + -- k1 is too small, hence we add one and need one fixup step less. + -- If log x < 0, the approximation errs rather on the high side. + -- That is usually more than compensated for by ignoring the + -- fractional part of logBase 2 x, but when x is a power of 1/2 + -- or slightly larger and the exponent is a multiple of the + -- denominator of the rational approximation to logBase 10 2, + -- k1 is larger than logBase 10 x. If k1 > 1 + logBase 10 x, + -- we get a leading zero-digit we don't want. + -- With the approximation 3/10, this happened for + -- 0.5^1030, 0.5^1040, ..., 0.5^1070 and values close above. + -- The approximation 8651/28738 guarantees k1 < 1 + logBase 10 x + -- for IEEE-ish floating point types with exponent fields + -- <= 17 bits and mantissae of several thousand bits, earlier + -- convergents to logBase 10 2 would fail for long double. + -- Using quot instead of div is a little faster and requires + -- fewer fixup steps for negative lx. + let lx = p - 1 + e0 + k1 = (lx * 8651) `quot` 28738 + in if lx >= 0 then k1 + 1 else k1 + else + -- f :: Integer, log :: Float -> Float, + -- ceiling :: Float -> Int + ceiling ((log (fromInteger (f+1) :: Float) + + fromIntegral e * log (fromInteger b)) / + log (fromInteger base)) +--WAS: fromInt e * log (fromInteger b)) + + fixup n = + if n >= 0 then + if r + mUp <= expt base n * s then n else fixup (n+1) + else + if expt base (-n) * (r + mUp) <= s then n else fixup (n+1) + in + fixup k0 + + gen ds rn sN mUpN mDnN = + let + (dn, rn') = (rn * base) `quotRem` sN + mUpN' = mUpN * base + mDnN' = mDnN * base + in + case (rn' < mDnN', rn' + mUpN' > sN) of + (True, False) -> dn : ds + (False, True) -> dn+1 : ds + (True, True) -> if rn' * 2 < sN then dn : ds else dn+1 : ds + (False, False) -> gen (dn:ds) rn' sN mUpN' mDnN' + + rds = + if k >= 0 then + gen [] r (s * expt base k) mUp mDn + else + let bk = expt base (-k) in + gen [] (r * bk) s (mUp * bk) (mDn * bk) + in + (map fromIntegral (reverse rds), k) + +----------- + +showEFloat :: (RealFloat a) => Maybe Int -> a -> ShowS +showFFloat :: (RealFloat a) => Maybe Int -> a -> ShowS +showGFloat :: (RealFloat a) => Maybe Int -> a -> ShowS +showFFloatAlt :: (RealFloat a) => Maybe Int -> a -> ShowS +showGFloatAlt :: (RealFloat a) => Maybe Int -> a -> ShowS + +showEFloat d x = showString (formatRealFloat FFExponent d x) +showFFloat d x = showString (formatRealFloat FFFixed d x) +showGFloat d x = showString (formatRealFloat FFGeneric d x) +showFFloatAlt d x = showString (formatRealFloatAlt FFFixed d True x) +showGFloatAlt d x = showString (formatRealFloatAlt FFGeneric d True x) + +showHFloat :: RealFloat a => a -> ShowS +showHFloat = showString . fmt + where + fmt x + | isNaN x = "NaN" + | isInfinite x = (if x < 0 then "-" else "") ++ "Infinity" + | x < 0 || isNegativeZero x = '-' : cvt (-x) + | otherwise = cvt x + + cvt x + | x == 0 = "0x0p+0" + | otherwise = + case floatToDigits 2 x of + r@([], _) -> error $ "Impossible happened: showHFloat: " ++ show r + (d:ds, e) -> "0x" ++ show d ++ frac ds ++ "p" ++ show (e-1) + + -- Given binary digits, convert them to hex in blocks of 4 + -- Special case: If all 0's, just drop it. + frac digits + | allZ digits = "" + | otherwise = "." ++ hex digits + where + hex ds = + case ds of + [] -> "" + [a] -> hexDigit a 0 0 0 "" + [a,b] -> hexDigit a b 0 0 "" + [a,b,c] -> hexDigit a b c 0 "" + a : b : c : d : r -> hexDigit a b c d (hex r) + + hexDigit a b c d = showHex (8*a + 4*b + 2*c + d) + + allZ xs = case xs of + x : more -> x == 0 && allZ more + [] -> True + +{- +-- Exponentiation with a cache for the most common numbers. +minExpt, maxExpt :: Int +minExpt = 0 +maxExpt = 1100 + +expt :: Integer -> Int -> Integer +expt base n = + if base == 2 && n >= minExpt && n <= maxExpt then + expts!n + else + if base == 10 && n <= maxExpt10 then + expts10!n + else + base^n + +expts :: Array Int Integer +expts = array (minExpt,maxExpt) [(n,2^n) | n <- [minExpt .. maxExpt]] + +maxExpt10 :: Int +maxExpt10 = 324 + +expts10 :: Array Int Integer +expts10 = array (minExpt,maxExpt10) [(n,10^n) | n <- [minExpt .. maxExpt10]] +-} +expt :: Integer -> Int -> Integer +expt base n = base^n diff --git a/lib/Numeric/Natural.hs b/lib/Numeric/Natural.hs new file mode 100644 --- /dev/null +++ b/lib/Numeric/Natural.hs @@ -0,0 +1,35 @@ +module Numeric.Natural + ( Natural + , minusNaturalMaybe + ) where +import Control.Exception + +newtype Natural = N Integer + deriving (Eq, Ord) + +instance Show Natural where + showsPrec p (N i) = showsPrec p i + +instance Num Natural where + N x + N y = N (x + y) + N x - N y | y > x = throw Underflow + N x * N y = N (x * y) + abs x = x + signum x = if x > 0 then 1 else 0 + fromInteger x | x < 0 = throw Underflow + | otherwise = N x + +instance Enum Natural where + toEnum = fromInteger . toInteger + fromEnum = fromInteger . toInteger + +instance Integral Natural where + toInteger (N i) = i + quotRem (N x) (N y) = (N q, N r) where (q, r) = quotRem x y + +instance Real Natural where + toRational (N i) = toRational i + +minusNaturalMaybe :: Natural -> Natural -> Maybe Natural +minusNaturalMaybe x y | x < y = Nothing + | otherwise = Just (x - y) diff --git a/lib/Prelude.hs b/lib/Prelude.hs --- a/lib/Prelude.hs +++ b/lib/Prelude.hs @@ -35,7 +35,6 @@ module System.IO, module Text.Read, module Text.Show, - module Text.String, Float, Double, usingMhs, _wordSize, _isWindows, ) where @@ -47,19 +46,27 @@ import Data.Bool(Bool(..), (&&), (||), not, otherwise) import Data.Bounded(Bounded(..)) import Data.Char(Char, String) +import Data.Double(Double) import Data.FloatW(FloatW) import Data.Either(Either(..), either) import Data.Enum(Enum(..)) import Data.Eq(Eq(..)) +import Data.Float(Float) import Data.Floating(Floating(..)) import Data.Fractional(Fractional(..), (^^)) -import Data.Function(id, const, (.), flip, ($), seq, ($!), until, curry, uncurry) +import Data.Function(id, const, (.), flip, ($), seq, ($!), until, curry, uncurry, asTypeOf) import Data.Functor(Functor(..), (<$>)) import Data.Int(Int) import Data.Int.Instances import Data.Integer(Integer) import Data.Integral(Integral(..), fromIntegral, gcd, lcm, even, odd, (^)) -import Data.List -- XXX +import Data.List([](..), map, (++), filter, head, last, tail, init, null, length, (!!), + reverse, foldl, foldl1, foldr, foldr1, and, or, any, all, + sum, product, concat, concatMap, maximum, minimum, + scanl, scanl1, scanr, scanr1, iterate, repeat, replicate, cycle, + take, drop, splitAt, takeWhile, dropWhile, span, break, + elem, notElem, lookup, zip, zip3, zipWith, zipWith3, unzip, unzip3, + lines, words, unlines, unwords) import Data.Maybe(Maybe(..), maybe) import Data.Monoid(Monoid(..)) import Data.Num(Num(..), subtract) @@ -78,12 +85,8 @@ cprint) import Text.Read(ReadS, Read(..), read, reads, readParen, lex) import Text.Show(Show(..), ShowS, shows, showChar, showString, showParen) -import Text.String import Primitives(_wordSize, _isWindows) -- So we can detect mhs vs ghc usingMhs :: Bool usingMhs = True - -type Float = FloatW -type Double = FloatW diff --git a/lib/Primitives.hs b/lib/Primitives.hs --- a/lib/Primitives.hs +++ b/lib/Primitives.hs @@ -31,6 +31,7 @@ data IO a data Word data Ptr a +data ForeignPtr a data FunPtr a data IOArray a @@ -159,9 +160,6 @@ primCharGE :: Char -> Char -> Bool primCharGE = primitive ">=" -primError :: forall a . [Char] -> a -primError = primitive "error" - primFix :: forall a . (a -> a) -> a primFix = primitive "Y" @@ -201,10 +199,6 @@ primPerformIO :: forall a . IO a -> a primPerformIO = primitive "IO.performIO" --- Use string for the exception until we can do better. -primCatch :: forall a . IO a -> ([Char] -> IO a) -> IO a -primCatch = primitive "IO.catch" - primRnfErr :: forall a . a -> () primRnfErr = primitive "rnf" (0::Int) @@ -232,6 +226,18 @@ primPtrToInt :: forall a . Ptr a -> Int primPtrToInt = primitive "toInt" +primFunPtrToWord :: forall a . FunPtr a -> Word +primFunPtrToWord = primitive "toInt" + +primIntToFunPtr :: forall a . Int -> FunPtr a +primIntToFunPtr = primitive "toFunPtr" + +primFunPtrToPtr :: forall a b . FunPtr a -> Ptr b +primFunPtrToPtr = primitive "toPtr" + +primPtrToFunPtr :: forall a b . Ptr a -> FunPtr b +primPtrToFunPtr = primitive "toFunPtr" + -- Size in bits of Word/Int. -- Will get constant folded on first use. _wordSize :: Int @@ -245,24 +251,12 @@ _isWindows :: Bool _isWindows = primPerformIO c_iswindows `primIntEQ` 1 -primPtrEQ :: forall a b . Ptr a -> Ptr b -> Bool -primPtrEQ = primitive "p==" - -primPtrNull :: forall a . Ptr a -primPtrNull = primitive "pnull" - -primPtrCast :: forall a b . Ptr a -> Ptr b -primPtrCast = primitive "pcast" - -primPtrAdd :: forall a b . Ptr a -> Int -> Ptr b -primPtrAdd = primitive "p+" - -primPtrSub :: forall a b . Ptr a -> Ptr b -> Int -primPtrSub = primitive "p-" - primArrAlloc :: forall a . Int -> a -> IO (IOArray a) primArrAlloc = primitive "A.alloc" +primArrCopy :: forall a . IOArray a -> IO (IOArray a) +primArrCopy = primitive "A.copy" + primArrSize :: forall a . IOArray a -> IO Int primArrSize = primitive "A.size" @@ -272,5 +266,9 @@ primArrWrite :: forall a . IOArray a -> Int -> a -> IO () primArrWrite = primitive "A.write" +-- Not referentially transparent primArrEQ :: forall a . IOArray a -> IOArray a -> Bool primArrEQ = primitive "A.==" + +primGC :: IO () +primGC = primitive "IO.gc" diff --git a/lib/System/Cmd.hs b/lib/System/Cmd.hs new file mode 100644 --- /dev/null +++ b/lib/System/Cmd.hs @@ -0,0 +1,10 @@ +module System.Cmd(system) where +import Foreign.C.String +import System.Exit + +foreign import ccall "system" c_system :: CString -> IO Int + +system :: String -> IO ExitCode +system s = do + r <- withCAString s c_system + return $ if r == 0 then ExitSuccess else ExitFailure r diff --git a/lib/System/Console/SimpleReadline.hs b/lib/System/Console/SimpleReadline.hs deleted file mode 100644 --- a/lib/System/Console/SimpleReadline.hs +++ /dev/null @@ -1,174 +0,0 @@ --- Copyright 2023 Lennart Augustsson --- See LICENSE file for full license. --- --- Simple readline with line editing and history. --- Only assumes the terminal is capable of (sane) backspace. -module System.Console.SimpleReadline( - getInputLine, - getInputLineHist - ) where -import Prelude -import Control.Monad -import Data.Char -import System.IO ---Ximport Compat - -foreign import ccall "GETRAW" c_getRaw :: IO Int - - --- Get an input line with editing. --- Return Nothing if the input is ^D, otherwise the typed string. -getInputLine :: String -> IO (Maybe String) -getInputLine prompt = do - (_, r) <- loop ([],[]) "" "" - return r - - --- Get an input line with editing. --- Return Nothing if the input is ^D, otherwise the typed string. --- The FilePath gives the name of a file that stores the history. -getInputLineHist :: FilePath -> String -> IO (Maybe String) -getInputLineHist hfn prompt = do - mhdl <- openFileM hfn ReadMode - hist <- - case mhdl of - Nothing -> return [] - Just hdl -> do - file <- hGetContents hdl - let h = lines file - seq (length h) (return h) -- force file to be read - putStr prompt - (hist', r) <- loop (reverse hist, []) "" "" --- putStrLn $ "done: " ++ hfn ++ "\n" ++ unlines hist' - writeFile hfn $ unlines hist' - return r -- XXX no type error - -getRaw :: IO Int -getRaw = do - i <- c_getRaw - when (i < 0) $ - error "getRaw failed" - return i - -type Hist = ([String], [String]) - -loop :: Hist -> String -> String -> IO ([String], Maybe String) -loop hist before after = do - hFlush stdout - i <- getRaw - let - cur = reverse before ++ after - back n = putStr (replicate n '\b') - - add c = do - putChar c - putStr after - back (length after) - loop hist (c:before) after - backward = - case before of - [] -> noop - c:cs -> do - back 1 - loop hist cs (c:after) - forward = - case after of - [] -> noop - c:cs -> do - putChar c - loop hist (c:before) cs - bol = do - back (length before) - loop hist "" (reverse before ++ after) - eol = do - putStr after - loop hist (reverse after ++ before) "" - bs = do - case before of - [] -> noop - _:cs -> do - back 1 - putStr after - putChar ' ' - back (length after + 1) - loop hist cs after - del = do - case after of - [] -> noop - _:cs -> do - putStr cs - putChar ' ' - back (length cs + 1) - loop hist before cs - send = - ret (Just cur) - ret ms = do - putChar '\n' - hFlush stdout - let - o = reverse (fst hist) ++ snd hist - l = - case ms of - Nothing -> [] - Just "" -> [] - Just s | not (null o) && s == last o -> [] - | otherwise -> [s] - h = o ++ l - return (h, ms) - erase = do - eraseLine - loop hist "" "" - noop = loop hist before after - kill = do - putStr after - putStr $ concat $ replicate (length after) "\b \b" - loop hist before "" - - next = - case hist of - (_, []) -> noop - (p, l:n) -> setLine (l:p, n) l - previous = - case hist of - ([], _) -> noop - (l:p, n) -> setLine (p, l:n) l - setLine h s = do - eraseLine - putStr s - loop h (reverse s) "" - - eraseLine = do - putStr after - putStr $ concat $ replicate (length before + length after) "\b \b" - - case i of - 4 -> -- CTL-D, EOF - if null before && null after then - ret Nothing - else - del - 2 -> backward -- CTL-B, backwards - 6 -> forward -- CTL-F, forwards - 1 -> bol -- CTL-A, beginning of line - 5 -> eol -- CTL-E, end of line - 8 -> bs -- BS, backspace - 127 -> bs -- DEL, backspace - 13 -> send -- CR, return - 10 -> send -- LF, return - 14 -> next -- CTL-N, next line - 15 -> previous -- CTL-P, previous line - 21 -> erase -- CTL-U, erase line - 11 -> kill -- CTL-K, kill to eol - 27 -> do -- ESC - b <- getRaw - if b /= ord '[' then - noop - else do - c <- getRaw - case chr c of - 'A' -> previous - 'B' -> next - 'C' -> forward - 'D' -> backward - _ -> noop - _ -> if i >= 32 && i < 127 then add (chr i) else noop diff --git a/lib/System/Directory.hs b/lib/System/Directory.hs --- a/lib/System/Directory.hs +++ b/lib/System/Directory.hs @@ -5,12 +5,17 @@ getDirectoryContents, listDirectory, setCurrentDirectory, + createDirectory, + createDirectoryIfMissing, + copyFile, + getHomeDirectory, ) where import Prelude import Control.Monad(when) import Foreign.C.String import Foreign.Ptr import System.IO +import System.Environment data DIR data Dirent @@ -21,6 +26,7 @@ foreign import ccall "readdir" c_readdir :: Ptr DIR -> IO (Ptr Dirent) foreign import ccall "c_d_name" c_d_name :: Ptr Dirent -> IO CString foreign import ccall "chdir" c_chdir :: CString -> IO Int +foreign import ccall "mkdir" c_mkdir :: CString -> Int -> IO Int removeFile :: FilePath -> IO () removeFile fn = do @@ -69,3 +75,37 @@ r <- withCAString d c_chdir when (r /= 0) $ error $ "setCurrentDirectory failed: " ++ d + +createDirectory :: FilePath -> IO () +createDirectory d = do + r <- withCAString d $ \ s -> c_mkdir s 0o775 -- rwxrwxr-x + when (r /= 0) $ + error $ "Cannot create directory " ++ show d + +createDirectoryIfMissing :: Bool -> FilePath -> IO () +createDirectoryIfMissing False d = do + _ <- withCAString d $ \ s -> c_mkdir s 0o775 -- rwxrwxr-x + return () +createDirectoryIfMissing True d = do + let ds = scanl1 (\ x y -> x ++ "/" ++ y) . split [] $ d + split r [] = [r] + split r ('/':cs) = r : split [] cs + split r (c:cs) = split (r ++ [c]) cs + mapM_ (createDirectoryIfMissing False) ds + +-- XXX does not copy flags +copyFile :: FilePath -> FilePath -> IO () +copyFile src dst = do + hsrc <- openBinaryFile src ReadMode + hdst <- openBinaryFile dst WriteMode + file <- hGetContents hsrc -- this also closes the file + hPutStr hdst file + hClose hdst + +getHomeDirectory :: IO FilePath +getHomeDirectory = + if _isWindows then do + user <- getEnv "USERNAME" + return $ "C:/Users/" ++ user -- it's a guess + else + getEnv "HOME" diff --git a/lib/System/Exit.hs b/lib/System/Exit.hs --- a/lib/System/Exit.hs +++ b/lib/System/Exit.hs @@ -5,16 +5,17 @@ exitSuccess, die, ) where -import Prelude import Control.Exception +import Data.Typeable import System.IO data ExitCode = ExitSuccess | ExitFailure Int - deriving (Show) + deriving (Eq, Typeable, Show) --- XXX This needs work +instance Exception ExitCode + exitWith :: forall a . ExitCode -> IO a -exitWith e = throwIO (Exn (show e)) +exitWith = throwIO exitFailure :: forall a . IO a exitFailure = exitWith (ExitFailure 1) diff --git a/lib/System/IO.hs b/lib/System/IO.hs --- a/lib/System/IO.hs +++ b/lib/System/IO.hs @@ -17,11 +17,10 @@ interact, writeFile, readFile, appendFile, - cprint, + cprint, cuprint, mkTextEncoding, hSetEncoding, utf8, - getTimeMilli, openTmpFile, openTempFile, withFile, @@ -76,7 +75,6 @@ foreign import ccall "fputc" c_fputc :: Int -> Handle -> IO Int -- foreign import ccall "fwrite" c_fwrite :: CString -> Int -> Int -> Handle -> IO Int -} -foreign import ccall "GETTIMEMILLI" c_getTimeMilli :: IO Int foreign import ccall "closeb" c_closeb :: Ptr BFILE -> IO () foreign import ccall "flushb" c_flushb :: Ptr BFILE -> IO () @@ -261,9 +259,6 @@ interact :: (String -> String) -> IO () interact f = getContents >>= putStr . f - -getTimeMilli :: IO Int -getTimeMilli = c_getTimeMilli openBinaryFile :: String -> IOMode -> IO Handle openBinaryFile p m = do diff --git a/lib/System/IO/Extra.hs b/lib/System/IO/Extra.hs new file mode 100644 --- /dev/null +++ b/lib/System/IO/Extra.hs @@ -0,0 +1,23 @@ +module System.IO.Extra(openFileM, openTmpFile, splitTmp) where +import Foreign.C.String + +splitTmp :: String -> (String, String) +splitTmp tmpl = + case span (/= '.') (reverse tmpl) of + (rsuf, "") -> (tmpl, "") + (rsuf, _:rpre) -> (reverse rpre, '.':reverse rsuf) + +-- Create a temporary file, take a prefix and a suffix +-- and returns a malloc()ed string. +foreign import ccall "tmpname" c_tmpname :: CString -> CString -> IO CString + +-- Create and open a temporary file. +openTmpFile :: String -> IO (String, Handle) +openTmpFile tmpl = do + let (pre, suf) = splitTmp tmpl + ctmp <- withCAString pre $ withCAString suf . c_tmpname + tmp <- peekCAString ctmp + free ctmp + h <- openFile tmp ReadWriteMode + return (tmp, h) + diff --git a/lib/System/IO/TimeMilli.hs b/lib/System/IO/TimeMilli.hs new file mode 100644 --- /dev/null +++ b/lib/System/IO/TimeMilli.hs @@ -0,0 +1,6 @@ +module System.IO.TimeMilli(getTimeMilli) where + +foreign import ccall "GETTIMEMILLI" c_getTimeMilli :: IO Int + +getTimeMilli :: IO Int +getTimeMilli = c_getTimeMilli diff --git a/lib/System/Info.hs b/lib/System/Info.hs --- a/lib/System/Info.hs +++ b/lib/System/Info.hs @@ -1,9 +1,11 @@ module System.Info(os, arch, compilerName, compilerVersion, fullCompilerVersion) where +import Control.Monad import Data.Char import Data.Version(Version(..)) +import System.Cmd import System.Directory +import System.Exit import System.IO -import System.Process import System.IO.Unsafe os :: String @@ -26,7 +28,9 @@ uname flag = unsafePerformIO $ do (fn, h) <- openTmpFile "uname" hClose h - callCommand $ "uname " ++ flag ++ " >" ++ fn + rc <- system $ "uname " ++ flag ++ " >" ++ fn res <- readFile fn removeFile fn + when (rc /= ExitSuccess) $ + error $ "System.Into: uname failed" return $ map toLower $ filter (not . isSpace) res diff --git a/lib/System/Process.hs b/lib/System/Process.hs --- a/lib/System/Process.hs +++ b/lib/System/Process.hs @@ -9,4 +9,4 @@ callCommand cmd = do r <- withCAString cmd systemc when (r /= 0) $ - error $ "callCommand: failed " ++ show r + error $ "callCommand: failed " ++ show r ++ ", " ++ show cmd diff --git a/lib/Text/Printf.hs b/lib/Text/Printf.hs new file mode 100644 --- /dev/null +++ b/lib/Text/Printf.hs @@ -0,0 +1,921 @@ +{-# LANGUAGE Safe #-} +{-# LANGUAGE TypeOperators #-} +{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-} + +----------------------------------------------------------------------------- +-- | +-- Module : Text.Printf +-- Copyright : (c) Lennart Augustsson and Bart Massey 2013 +-- License : BSD-style (see the file LICENSE in this distribution) +-- +-- Maintainer : Bart Massey +-- Stability : provisional +-- Portability : portable +-- +-- A C @printf(3)@-like formatter. This version has been +-- extended by Bart Massey as per the recommendations of +-- John Meacham and Simon Marlow +-- +-- to support extensible formatting for new datatypes. It +-- has also been extended to support almost all C +-- @printf(3)@ syntax. +----------------------------------------------------------------------------- + +module Text.Printf( +-- * Printing Functions + printf, hPrintf, +-- * Extending To New Types +-- +-- | This 'printf' can be extended to format types +-- other than those provided for by default. This +-- is done by instantiating 'PrintfArg' and providing +-- a 'formatArg' for the type. It is possible to +-- provide a 'parseFormat' to process type-specific +-- modifiers, but the default instance is usually +-- the best choice. +-- +-- For example: +-- +-- > instance PrintfArg () where +-- > formatArg x fmt | fmtChar (vFmt 'U' fmt) == 'U' = +-- > formatString "()" (fmt { fmtChar = 's', fmtPrecision = Nothing }) +-- > formatArg _ fmt = errorBadFormat $ fmtChar fmt +-- > +-- > main :: IO () +-- > main = printf "[%-3.1U]\n" () +-- +-- prints \"@[() ]@\". Note the use of 'formatString' to +-- take care of field formatting specifications in a convenient +-- way. + PrintfArg(..), + FieldFormatter, + FieldFormat(..), + FormatAdjustment(..), FormatSign(..), + vFmt, +-- ** Handling Type-specific Modifiers +-- +-- | In the unlikely case that modifier characters of +-- some kind are desirable for a user-provided type, +-- a 'ModifierParser' can be provided to process these +-- characters. The resulting modifiers will appear in +-- the 'FieldFormat' for use by the type-specific formatter. + ModifierParser, FormatParse(..), +-- ** Standard Formatters +-- +-- | These formatters for standard types are provided for +-- convenience in writing new type-specific formatters: +-- a common pattern is to throw to 'formatString' or +-- 'formatInteger' to do most of the format handling for +-- a new type. + formatString, formatChar, formatInt, + formatInteger, formatRealFloat, +-- ** Raising Errors +-- +-- | These functions are used internally to raise various +-- errors, and are exported for use by new type-specific +-- formatters. + errorBadFormat, errorShortFormat, errorMissingArgument, + errorBadArgument, + perror, +-- * Implementation Internals +-- | These types are needed for implementing processing +-- variable numbers of arguments to 'printf' and 'hPrintf'. +-- Their implementation is intentionally not visible from +-- this module. If you attempt to pass an argument of a type +-- which is not an instance of the appropriate class to +-- 'printf' or 'hPrintf', then the compiler will report it +-- as a missing instance of 'PrintfArg'. (All 'PrintfArg' +-- instances are 'PrintfType' instances.) + PrintfType, HPrintfType, +-- | This class is needed as a Haskell98 compatibility +-- workaround for the lack of FlexibleInstances. + IsChar(..) +) where + +import Data.Char +import Data.Int +import Data.List (stripPrefix) +import Data.Word +import Numeric +import Numeric.FormatFloat(showEFloat, showFFloat, showGFloat, showFFloatAlt, showGFloatAlt) +import Numeric.Natural +import System.IO + +-- $setup +-- >>> import Prelude + +------------------- + +-- | Format a variable number of arguments with the C-style formatting string. +-- +-- >>> printf "%s, %d, %.4f" "hello" 123 pi +-- hello, 123, 3.1416 +-- +-- The return value is either 'String' or @('IO' a)@ (which +-- should be @('IO' ())@, but Haskell's type system +-- makes this hard). +-- +-- The format string consists of ordinary characters and +-- /conversion specifications/, which specify how to format +-- one of the arguments to 'printf' in the output string. A +-- format specification is introduced by the @%@ character; +-- this character can be self-escaped into the format string +-- using @%%@. A format specification ends with a +-- /format character/ that provides the primary information about +-- how to format the value. The rest of the conversion +-- specification is optional. In order, one may have flag +-- characters, a width specifier, a precision specifier, and +-- type-specific modifier characters. +-- +-- Unlike C @printf(3)@, the formatting of this 'printf' +-- is driven by the argument type; formatting is type specific. The +-- types formatted by 'printf' \"out of the box\" are: +-- +-- * 'Integral' types, including 'Char' +-- +-- * 'String' +-- +-- * 'RealFloat' types +-- +-- 'printf' is also extensible to support other types: see below. +-- +-- A conversion specification begins with the +-- character @%@, followed by zero or more of the following flags: +-- +-- > - left adjust (default is right adjust) +-- > + always use a sign (+ or -) for signed conversions +-- > space leading space for positive numbers in signed conversions +-- > 0 pad with zeros rather than spaces +-- > # use an \"alternate form\": see below +-- +-- When both flags are given, @-@ overrides @0@ and @+@ overrides space. +-- A negative width specifier in a @*@ conversion is treated as +-- positive but implies the left adjust flag. +-- +-- The \"alternate form\" for unsigned radix conversions is +-- as in C @printf(3)@: +-- +-- > %o prefix with a leading 0 if needed +-- > %x prefix with a leading 0x if nonzero +-- > %X prefix with a leading 0X if nonzero +-- > %b prefix with a leading 0b if nonzero +-- > %[eEfFgG] ensure that the number contains a decimal point +-- +-- Any flags are followed optionally by a field width: +-- +-- > num field width +-- > * as num, but taken from argument list +-- +-- The field width is a minimum, not a maximum: it will be +-- expanded as needed to avoid mutilating a value. +-- +-- Any field width is followed optionally by a precision: +-- +-- > .num precision +-- > . same as .0 +-- > .* as num, but taken from argument list +-- +-- Negative precision is taken as 0. The meaning of the +-- precision depends on the conversion type. +-- +-- > Integral minimum number of digits to show +-- > RealFloat number of digits after the decimal point +-- > String maximum number of characters +-- +-- The precision for Integral types is accomplished by zero-padding. +-- If both precision and zero-pad are given for an Integral field, +-- the zero-pad is ignored. +-- +-- Any precision is followed optionally for Integral types +-- by a width modifier; the only use of this modifier being +-- to set the implicit size of the operand for conversion of +-- a negative operand to unsigned: +-- +-- > hh Int8 +-- > h Int16 +-- > l Int32 +-- > ll Int64 +-- > L Int64 +-- +-- The specification ends with a format character: +-- +-- > c character Integral +-- > d decimal Integral +-- > o octal Integral +-- > x hexadecimal Integral +-- > X hexadecimal Integral +-- > b binary Integral +-- > u unsigned decimal Integral +-- > f floating point RealFloat +-- > F floating point RealFloat +-- > g general format float RealFloat +-- > G general format float RealFloat +-- > e exponent format float RealFloat +-- > E exponent format float RealFloat +-- > s string String +-- > v default format any type +-- +-- The \"%v\" specifier is provided for all built-in types, +-- and should be provided for user-defined type formatters +-- as well. It picks a \"best\" representation for the given +-- type. For the built-in types the \"%v\" specifier is +-- converted as follows: +-- +-- > c Char +-- > u other unsigned Integral +-- > d other signed Integral +-- > g RealFloat +-- > s String +-- +-- Mismatch between the argument types and the format +-- string, as well as any other syntactic or semantic errors +-- in the format string, will cause an exception to be +-- thrown at runtime. +-- +-- Note that the formatting for 'RealFloat' types is +-- currently a bit different from that of C @printf(3)@, +-- conforming instead to 'Numeric.showEFloat', +-- 'Numeric.showFFloat' and 'Numeric.showGFloat' (and their +-- alternate versions 'Numeric.showFFloatAlt' and +-- 'Numeric.showGFloatAlt'). This is hard to fix: the fixed +-- versions would format in a backward-incompatible way. +-- In any case the Haskell behavior is generally more +-- sensible than the C behavior. A brief summary of some +-- key differences: +-- +-- * Haskell 'printf' never uses the default \"6-digit\" precision +-- used by C printf. +-- +-- * Haskell 'printf' treats the \"precision\" specifier as +-- indicating the number of digits after the decimal point. +-- +-- * Haskell 'printf' prints the exponent of e-format +-- numbers without a gratuitous plus sign, and with the +-- minimum possible number of digits. +-- +-- * Haskell 'printf' will place a zero after a decimal point when +-- possible. +printf :: (PrintfType r) => String -> r +printf fmts = spr fmts [] + +-- | Similar to 'printf', except that output is via the specified +-- 'Handle'. The return type is restricted to @('IO' a)@. +hPrintf :: (HPrintfType r) => Handle -> String -> r +hPrintf hdl fmts = hspr hdl fmts [] + +-- |The 'PrintfType' class provides the variable argument magic for +-- 'printf'. Its implementation is intentionally not visible from +-- this module. If you attempt to pass an argument of a type which +-- is not an instance of this class to 'printf' or 'hPrintf', then +-- the compiler will report it as a missing instance of 'PrintfArg'. +class PrintfType t where + spr :: String -> [UPrintf] -> t + +-- | The 'HPrintfType' class provides the variable argument magic for +-- 'hPrintf'. Its implementation is intentionally not visible from +-- this module. +class HPrintfType t where + hspr :: Handle -> String -> [UPrintf] -> t + +{- not allowed in Haskell 2010 +instance PrintfType String where + spr fmt args = uprintf fmt (reverse args) +-} +-- | @since 2.01 +instance (IsChar c) => PrintfType [c] where + spr fmts args = map fromChar (uprintf fmts (reverse args)) + +-- Note that this should really be (IO ()), but GHC's +-- type system won't readily let us say that without +-- bringing the GADTs. So we go conditional for these defs. + +-- | @since 4.7.0.0 +instance (a ~ ()) => PrintfType (IO a) where + spr fmts args = + putStr $ map fromChar $ uprintf fmts $ reverse args + +-- | @since 4.7.0.0 +instance (a ~ ()) => HPrintfType (IO a) where + hspr hdl fmts args = + hPutStr hdl (uprintf fmts (reverse args)) + +-- | @since 2.01 +instance (PrintfArg a, PrintfType r) => PrintfType (a -> r) where + spr fmts args = \ a -> spr fmts + ((parseFormat a, formatArg a) : args) + +-- | @since 2.01 +instance (PrintfArg a, HPrintfType r) => HPrintfType (a -> r) where + hspr hdl fmts args = \ a -> hspr hdl fmts + ((parseFormat a, formatArg a) : args) + +-- | Typeclass of 'printf'-formattable values. The 'formatArg' method +-- takes a value and a field format descriptor and either fails due +-- to a bad descriptor or produces a 'ShowS' as the result. The +-- default 'parseFormat' expects no modifiers: this is the normal +-- case. Minimal instance: 'formatArg'. +class PrintfArg a where + -- | @since 4.7.0.0 + formatArg :: a -> FieldFormatter + -- | @since 4.7.0.0 + parseFormat :: a -> ModifierParser + parseFormat _ (c : cs) = FormatParse "" c cs + parseFormat _ "" = errorShortFormat + +-- | @since 2.01 +instance PrintfArg Char where + formatArg = formatChar + parseFormat _ cf = parseIntFormat (undefined :: Int) cf + +-- | @since 2.01 +instance (IsChar c) => PrintfArg [c] where + formatArg = formatString + +-- | @since 2.01 +instance PrintfArg Int where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Int8 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Int16 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Int32 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Int64 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Word where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Word8 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Word16 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Word32 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Word64 where + formatArg = formatInt + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Integer where + formatArg = formatInteger + parseFormat = parseIntFormat + +-- | @since 4.8.0.0 +instance PrintfArg Natural where + formatArg = formatInteger . toInteger + parseFormat = parseIntFormat + +-- | @since 2.01 +instance PrintfArg Float where + formatArg = formatRealFloat + +{- Double=Float +-- | @since 2.01 +instance PrintfArg Double where + formatArg = formatRealFloat +-} + +-- | This class, with only the one instance, is used as +-- a workaround for the fact that 'String', as a concrete +-- type, is not allowable as a typeclass instance. 'IsChar' +-- is exported for backward-compatibility. +class IsChar c where + -- | @since 4.7.0.0 + toChar :: c -> Char + -- | @since 4.7.0.0 + fromChar :: Char -> c + +-- | @since 2.01 +instance IsChar Char where + toChar c = c + fromChar c = c + +------------------- + +-- | Whether to left-adjust or zero-pad a field. These are +-- mutually exclusive, with 'LeftAdjust' taking precedence. +-- +-- @since 4.7.0.0 +data FormatAdjustment = LeftAdjust | ZeroPad + +-- | How to handle the sign of a numeric field. These are +-- mutually exclusive, with 'SignPlus' taking precedence. +-- +-- @since 4.7.0.0 +data FormatSign = SignPlus | SignSpace + +-- | Description of field formatting for 'formatArg'. See UNIX @printf(3)@ +-- for a description of how field formatting works. +-- +-- @since 4.7.0.0 +data FieldFormat = FieldFormat { + fmtWidth :: Maybe Int, -- ^ Total width of the field. + fmtPrecision :: Maybe Int, -- ^ Secondary field width specifier. + fmtAdjust :: Maybe FormatAdjustment, -- ^ Kind of filling or padding + -- to be done. + fmtSign :: Maybe FormatSign, -- ^ Whether to insist on a + -- plus sign for positive + -- numbers. + fmtAlternate :: Bool, -- ^ Indicates an "alternate + -- format". See @printf(3)@ + -- for the details, which + -- vary by argument spec. + fmtModifiers :: String, -- ^ Characters that appeared + -- immediately to the left of + -- 'fmtChar' in the format + -- and were accepted by the + -- type's 'parseFormat'. + -- Normally the empty string. + fmtChar :: Char -- ^ The format character + -- 'printf' was invoked + -- with. 'formatArg' should + -- fail unless this character + -- matches the type. It is + -- normal to handle many + -- different format + -- characters for a single + -- type. + } + +-- | The \"format parser\" walks over argument-type-specific +-- modifier characters to find the primary format character. +-- This is the type of its result. +-- +-- @since 4.7.0.0 +data FormatParse = FormatParse { + fpModifiers :: String, -- ^ Any modifiers found. + fpChar :: Char, -- ^ Primary format character. + fpRest :: String -- ^ Rest of the format string. + } + +-- Contains the "modifier letters" that can precede an +-- integer type. +intModifierMap :: [(String, Integer)] +intModifierMap = [ + ("hh", toInteger (minBound :: Int8)), + ("h", toInteger (minBound :: Int16)), + ("l", toInteger (minBound :: Int32)), + ("ll", toInteger (minBound :: Int64)), + ("L", toInteger (minBound :: Int64)) ] + +parseIntFormat :: a -> String -> FormatParse +parseIntFormat _ s = + case foldr matchPrefix Nothing intModifierMap of + Just m -> m + Nothing -> + case s of + c : cs -> FormatParse "" c cs + "" -> errorShortFormat + where + matchPrefix (p, _) m@(Just (FormatParse p0 _ _)) + | length p0 >= length p = m + | otherwise = case getFormat p of + Nothing -> m + Just fp -> Just fp + matchPrefix (p, _) Nothing = + getFormat p + getFormat p = + stripPrefix p s >>= fp + where + fp (c : cs) = Just $ FormatParse p c cs + fp "" = errorShortFormat + +-- | This is the type of a field formatter reified over its +-- argument. +-- +-- @since 4.7.0.0 +type FieldFormatter = FieldFormat -> ShowS + +-- | Type of a function that will parse modifier characters +-- from the format string. +-- +-- @since 4.7.0.0 +type ModifierParser = String -> FormatParse + +-- | Substitute a \'v\' format character with the given +-- default format character in the 'FieldFormat'. A +-- convenience for user-implemented types, which should +-- support \"%v\". +-- +-- @since 4.7.0.0 +vFmt :: Char -> FieldFormat -> FieldFormat +vFmt c ufmt@(FieldFormat {fmtChar = 'v'}) = ufmt {fmtChar = c} +vFmt _ ufmt = ufmt + +-- | Formatter for 'Char' values. +-- +-- @since 4.7.0.0 +formatChar :: Char -> FieldFormatter +formatChar x ufmt = + formatIntegral (Just 0) (toInteger $ ord x) $ vFmt 'c' ufmt + +-- | Formatter for 'String' values. +-- +-- @since 4.7.0.0 +formatString :: IsChar a => [a] -> FieldFormatter +formatString x ufmt = + case fmtChar $ vFmt 's' ufmt of + 's' -> map toChar . (adjust ufmt ("", ts) ++) + where + ts = map toChar $ trunc $ fmtPrecision ufmt + where + trunc Nothing = x + trunc (Just n) = take n x + c -> errorBadFormat c + +-- Possibly apply the int modifiers to get a new +-- int width for conversion. +fixupMods :: FieldFormat -> Maybe Integer -> Maybe Integer +fixupMods ufmt m = + let mods = fmtModifiers ufmt in + case mods of + "" -> m + _ -> case lookup mods intModifierMap of + Just m0 -> Just m0 + Nothing -> perror "unknown format modifier" + +-- | Formatter for 'Int' values. +-- +-- @since 4.7.0.0 +formatInt :: (Integral a, Bounded a) => a -> FieldFormatter +formatInt x ufmt = + let lb = toInteger $ minBound `asTypeOf` x + m = fixupMods ufmt (Just lb) + ufmt' = case lb of + 0 -> vFmt 'u' ufmt + _ -> ufmt + in + formatIntegral m (toInteger x) ufmt' + +-- | Formatter for 'Integer' values. +-- +-- @since 4.7.0.0 +formatInteger :: Integer -> FieldFormatter +formatInteger x ufmt = + let m = fixupMods ufmt Nothing in + formatIntegral m x ufmt + +-- All formatting for integral types is handled +-- consistently. The only difference is between Integer and +-- bounded types; this difference is handled by the 'm' +-- argument containing the lower bound. +formatIntegral :: Maybe Integer -> Integer -> FieldFormatter +formatIntegral m x ufmt0 = + let prec = fmtPrecision ufmt0 in + case fmtChar ufmt of + 'd' -> (adjustSigned ufmt (fmti prec x) ++) + 'i' -> (adjustSigned ufmt (fmti prec x) ++) + 'x' -> (adjust ufmt (fmtu 16 (alt "0x" x) prec m x) ++) + 'X' -> (adjust ufmt (upcase $ fmtu 16 (alt "0X" x) prec m x) ++) + 'b' -> (adjust ufmt (fmtu 2 (alt "0b" x) prec m x) ++) + 'o' -> (adjust ufmt (fmtu 8 (alt "0" x) prec m x) ++) + 'u' -> (adjust ufmt (fmtu 10 Nothing prec m x) ++) + 'c' | x >= fromIntegral (ord (minBound :: Char)) && + x <= fromIntegral (ord (maxBound :: Char)) && + fmtPrecision ufmt == Nothing && + fmtModifiers ufmt == "" -> + formatString [chr $ fromIntegral x] (ufmt { fmtChar = 's' }) + 'c' -> perror "illegal char conversion" + c -> errorBadFormat c + where + ufmt = vFmt 'd' $ case ufmt0 of + FieldFormat { fmtPrecision = Just _, fmtAdjust = Just ZeroPad } -> + ufmt0 { fmtAdjust = Nothing } + _ -> ufmt0 + alt _ 0 = Nothing + alt p _ = case fmtAlternate ufmt of + True -> Just p + False -> Nothing + upcase (s1, s2) = (s1, map toUpper s2) + +-- | Formatter for 'RealFloat' values. +-- +-- @since 4.7.0.0 +formatRealFloat :: RealFloat a => a -> FieldFormatter +formatRealFloat x ufmt = + let c = fmtChar $ vFmt 'g' ufmt + prec = fmtPrecision ufmt + alt = fmtAlternate ufmt + in + case c of + 'e' -> (adjustSigned ufmt (dfmt c prec alt x) ++) + 'E' -> (adjustSigned ufmt (dfmt c prec alt x) ++) + 'f' -> (adjustSigned ufmt (dfmt c prec alt x) ++) + 'F' -> (adjustSigned ufmt (dfmt c prec alt x) ++) + 'g' -> (adjustSigned ufmt (dfmt c prec alt x) ++) + 'G' -> (adjustSigned ufmt (dfmt c prec alt x) ++) + _ -> errorBadFormat c + +-- This is the type carried around for arguments in +-- the varargs code. +type UPrintf = (ModifierParser, FieldFormatter) + +-- Given a format string and a list of formatting functions +-- (the actual argument value having already been baked into +-- each of these functions before delivery), return the +-- actual formatted text string. +uprintf :: String -> [UPrintf] -> String +uprintf s us = uprintfs s us "" + +-- This function does the actual work, producing a ShowS +-- instead of a string, for future expansion and for +-- misguided efficiency. +uprintfs :: String -> [UPrintf] -> ShowS +uprintfs "" [] = id +uprintfs "" (_:_) = errorShortFormat +uprintfs ('%':'%':cs) us = ('%' :) . uprintfs cs us +uprintfs ('%':_) [] = errorMissingArgument +uprintfs ('%':cs) us@(_:_) = fmt cs us +uprintfs (c:cs) us = (c :) . uprintfs cs us + +-- Given a suffix of the format string starting just after +-- the percent sign, and the list of remaining unprocessed +-- arguments in the form described above, format the portion +-- of the output described by this field description, and +-- then continue with 'uprintfs'. +fmt :: String -> [UPrintf] -> ShowS +fmt cs0 us0 = + case getSpecs False False Nothing False cs0 us0 of + (_, _, []) -> errorMissingArgument + (ufmt, cs, (_, u) : us) -> u ufmt . uprintfs cs us + +-- Given field formatting information, and a tuple +-- consisting of a prefix (for example, a minus sign) that +-- is supposed to go before the argument value and a string +-- representing the value, return the properly padded and +-- formatted result. +adjust :: FieldFormat -> (String, String) -> String +adjust ufmt (pre, str) = + let naturalWidth = length pre + length str + zero = case fmtAdjust ufmt of + Just ZeroPad -> True + _ -> False + left = case fmtAdjust ufmt of + Just LeftAdjust -> True + _ -> False + fill = case fmtWidth ufmt of + Just width | naturalWidth < width -> + let fillchar = if zero then '0' else ' ' in + replicate (width - naturalWidth) fillchar + _ -> "" + in + if left + then pre ++ str ++ fill + else if zero + then pre ++ fill ++ str + else fill ++ pre ++ str + +-- For positive numbers with an explicit sign field ("+" or +-- " "), adjust accordingly. +adjustSigned :: FieldFormat -> (String, String) -> String +adjustSigned ufmt@(FieldFormat {fmtSign = Just SignPlus}) ("", str) = + adjust ufmt ("+", str) +adjustSigned ufmt@(FieldFormat {fmtSign = Just SignSpace}) ("", str) = + adjust ufmt (" ", str) +adjustSigned ufmt ps = + adjust ufmt ps + +-- Format a signed integer in the "default" fashion. +-- This will be subjected to adjust subsequently. +fmti :: Maybe Int -> Integer -> (String, String) +fmti prec i + | i < 0 = ("-", integral_prec prec (show (-i))) + | otherwise = ("", integral_prec prec (show i)) + +-- Format an unsigned integer in the "default" fashion. +-- This will be subjected to adjust subsequently. The 'b' +-- argument is the base, the 'pre' argument is the prefix, +-- and the '(Just m)' argument is the implicit lower-bound +-- size of the operand for conversion from signed to +-- unsigned. Thus, this function will refuse to convert an +-- unbounded negative integer to an unsigned string. +fmtu :: Integer -> Maybe String -> Maybe Int -> Maybe Integer -> Integer + -> (String, String) +fmtu b (Just pre) prec m i = + let ("", s) = fmtu b Nothing prec m i in + case pre of + "0" -> case s of + '0' : _ -> ("", s) + _ -> (pre, s) + _ -> (pre, s) +fmtu b Nothing prec0 m0 i0 = + case fmtu' prec0 m0 i0 of + Just s -> ("", s) + Nothing -> errorBadArgument + where + fmtu' :: Maybe Int -> Maybe Integer -> Integer -> Maybe String + fmtu' prec (Just m) i | i < 0 = + fmtu' prec Nothing (-2 * m + i) + fmtu' (Just prec) _ i | i >= 0 = + fmap (integral_prec (Just prec)) $ fmtu' Nothing Nothing i + fmtu' Nothing _ i | i >= 0 = + Just $ showIntAtBase b intToDigit i "" + fmtu' _ _ _ = Nothing + + +-- This is used by 'fmtu' and 'fmti' to zero-pad an +-- int-string to a required precision. +integral_prec :: Maybe Int -> String -> String +integral_prec Nothing integral = integral +integral_prec (Just 0) "0" = "" +integral_prec (Just prec) integral = + replicate (prec - length integral) '0' ++ integral + +stoi :: String -> (Int, String) +stoi cs = + let (as, cs') = span isDigit cs in + case as of + "" -> (0, cs') + _ -> (read as, cs') + +-- Figure out the FormatAdjustment, given: +-- width, precision, left-adjust, zero-fill +adjustment :: Maybe Int -> Maybe a -> Bool -> Bool + -> Maybe FormatAdjustment +adjustment w p l z = + case w of + Just n | n < 0 -> adjl p True z + _ -> adjl p l z + where + adjl _ True _ = Just LeftAdjust + adjl _ False True = Just ZeroPad + adjl _ _ _ = Nothing + +-- Parse the various format controls to get a format specification. +getSpecs :: Bool -> Bool -> Maybe FormatSign -> Bool -> String -> [UPrintf] + -> (FieldFormat, String, [UPrintf]) +getSpecs _ z s a ('-' : cs0) us = getSpecs True z s a cs0 us +getSpecs l z _ a ('+' : cs0) us = getSpecs l z (Just SignPlus) a cs0 us +getSpecs l z s a (' ' : cs0) us = + getSpecs l z ss a cs0 us + where + ss = case s of + Just SignPlus -> Just SignPlus + _ -> Just SignSpace +getSpecs l _ s a ('0' : cs0) us = getSpecs l True s a cs0 us +getSpecs l z s _ ('#' : cs0) us = getSpecs l z s True cs0 us +getSpecs l z s a ('*' : cs0) us = + let (us', n) = getStar us + ((p, cs''), us'') = case cs0 of + '.':'*':r -> + let (us''', p') = getStar us' in ((Just p', r), us''') + '.':r -> + let (p', r') = stoi r in ((Just p', r'), us') + _ -> + ((Nothing, cs0), us') + FormatParse ms c cs = + case us'' of + (ufmt, _) : _ -> ufmt cs'' + [] -> errorMissingArgument + in + (FieldFormat { + fmtWidth = Just (abs n), + fmtPrecision = p, + fmtAdjust = adjustment (Just n) p l z, + fmtSign = s, + fmtAlternate = a, + fmtModifiers = ms, + fmtChar = c}, cs, us'') +getSpecs l z s a ('.' : cs0) us = + let ((p, cs'), us') = case cs0 of + '*':cs'' -> let (us'', p') = getStar us in ((p', cs''), us'') + _ -> (stoi cs0, us) + FormatParse ms c cs = + case us' of + (ufmt, _) : _ -> ufmt cs' + [] -> errorMissingArgument + in + (FieldFormat { + fmtWidth = Nothing, + fmtPrecision = Just p, + fmtAdjust = adjustment Nothing (Just p) l z, + fmtSign = s, + fmtAlternate = a, + fmtModifiers = ms, + fmtChar = c}, cs, us') +getSpecs l z s a cs0@(c0 : _) us | isDigit c0 = + let (n, cs') = stoi cs0 + ((p, cs''), us') = case cs' of + '.' : '*' : r -> + let (us'', p') = getStar us in ((Just p', r), us'') + '.' : r -> + let (p', r') = stoi r in ((Just p', r'), us) + _ -> + ((Nothing, cs'), us) + FormatParse ms c cs = + case us' of + (ufmt, _) : _ -> ufmt cs'' + [] -> errorMissingArgument + in + (FieldFormat { + fmtWidth = Just (abs n), + fmtPrecision = p, + fmtAdjust = adjustment (Just n) p l z, + fmtSign = s, + fmtAlternate = a, + fmtModifiers = ms, + fmtChar = c}, cs, us') +getSpecs l z s a cs0@(_ : _) us = + let FormatParse ms c cs = + case us of + (ufmt, _) : _ -> ufmt cs0 + [] -> errorMissingArgument + in + (FieldFormat { + fmtWidth = Nothing, + fmtPrecision = Nothing, + fmtAdjust = adjustment Nothing Nothing l z, + fmtSign = s, + fmtAlternate = a, + fmtModifiers = ms, + fmtChar = c}, cs, us) +getSpecs _ _ _ _ "" _ = + errorShortFormat + +-- Process a star argument in a format specification. +getStar :: [UPrintf] -> ([UPrintf], Int) +getStar us = + let ufmt = FieldFormat { + fmtWidth = Nothing, + fmtPrecision = Nothing, + fmtAdjust = Nothing, + fmtSign = Nothing, + fmtAlternate = False, + fmtModifiers = "", + fmtChar = 'd' } in + case us of + [] -> errorMissingArgument + (_, nu) : us' -> (us', read (nu ufmt "")) + +-- Format a RealFloat value. +dfmt :: (RealFloat a) => Char -> Maybe Int -> Bool -> a -> (String, String) +dfmt c p a d = + let caseConvert = if isUpper c then map toUpper else id + showFunction = case toLower c of + 'e' -> showEFloat + 'f' -> if a then showFFloatAlt else showFFloat + 'g' -> if a then showGFloatAlt else showGFloat + _ -> perror "internal error: impossible dfmt" + result = caseConvert $ showFunction p d "" + in + case result of + '-' : cs -> ("-", cs) + cs -> ("" , cs) + + +-- | Raises an 'error' with a printf-specific prefix on the +-- message string. +-- +-- @since 4.7.0.0 +perror :: String -> a +perror s = error $ "printf: " ++ s + +-- | Calls 'perror' to indicate an unknown format letter for +-- a given type. +-- +-- @since 4.7.0.0 +errorBadFormat :: Char -> a +errorBadFormat c = perror $ "bad formatting char " ++ show c + +errorShortFormat, errorMissingArgument, errorBadArgument :: a +-- | Calls 'perror' to indicate that the format string ended +-- early. +-- +-- @since 4.7.0.0 +errorShortFormat = perror "formatting string ended prematurely" +-- | Calls 'perror' to indicate that there is a missing +-- argument in the argument list. +-- +-- @since 4.7.0.0 +errorMissingArgument = perror "argument list ended prematurely" +-- | Calls 'perror' to indicate that there is a type +-- error or similar in the given argument. +-- +-- @since 4.7.0.0 +errorBadArgument = perror "bad argument" diff --git a/lib/Text/String.hs b/lib/Text/String.hs deleted file mode 100644 --- a/lib/Text/String.hs +++ /dev/null @@ -1,61 +0,0 @@ --- Copyright 2023 Lennart Augustsson --- See LICENSE file for full license. -module Text.String(module Text.String) where -import Prelude() -- do not import Prelude -import Primitives -import Data.Bool -import Data.Char -import Data.Either -import Data.Eq -import Data.Fractional -import Data.Function -import Data.Int -import Data.Integer -import Data.Integral -import Data.List -import Data.Maybe -import Data.Num -import Data.Ord -import Data.Ratio -import Data.Real -import Data.String -import Data.Tuple -import Text.Read -import Text.Show - -showListS :: forall a . (a -> String) -> [a] -> String -showListS sa as = showListWith (\ a s -> sa a ++ s) as "" - -showPairS :: forall a b . (a -> String) -> (b -> String) -> (a, b) -> String -showPairS sa sb (a, b) = "(" ++ sa a ++ "," ++ sb b ++ ")" - -padLeft :: Int -> String -> String -padLeft n s = replicate (n - length s) ' ' ++ s - -forceString :: String -> () -forceString [] = () -forceString (c:cs) = c `primSeq` forceString cs - --- Convert string in scientific notation to a rational number. -readRational :: String -> Rational -readRational acs@(sgn:as) | sgn == '-' = negate $ rat1 as - | otherwise = rat1 acs - where - rat1 s1 = - case span isDigit s1 of - (ds1, cr1) | ('.':r1) <- cr1 -> rat2 f1 r1 - | (c:r1) <- cr1, toLower c == 'e' -> rat3 f1 r1 - | otherwise -> f1 - where f1 = toRational (read ds1 :: Integer) - - rat2 f1 s2 = - case span isDigit s2 of - (ds2, cr2) | (c:r2) <- cr2, toLower c == 'e' -> rat3 f2 r2 - | otherwise -> f2 - where f2 = f1 + toRational (read ds2 :: Integer) * 10 ^^ (negate $ length ds2) - - rat3 f2 ('+':s) = f2 * expo s - rat3 f2 ('-':s) = f2 / expo s - rat3 f2 s = f2 * expo s - - expo s = 10 ^ (read s :: Integer) diff --git a/lib/simple-readline/System/Console/SimpleReadline.hs b/lib/simple-readline/System/Console/SimpleReadline.hs new file mode 100644 --- /dev/null +++ b/lib/simple-readline/System/Console/SimpleReadline.hs @@ -0,0 +1,210 @@ +-- Copyright 2023 Lennart Augustsson +-- See LICENSE file for full license. +-- +-- Simple readline with line editing and history. +-- Only assumes the terminal is capable of (sane) backspace. +module System.Console.SimpleReadline( + getInputLine, + getInputLineHist, + getInputLineHistComp, + ) where +import Prelude +import Control.Monad +import Data.Char +import System.IO + +foreign import ccall "GETRAW" c_getRaw :: IO Int + + +-- Get an input line with editing. +-- Return Nothing if the input is ^D, otherwise the typed string. +getInputLine :: String -> IO (Maybe String) +getInputLine prompt = do + (_, r) <- loop (\ _ -> return []) ([],[]) "" "" + return r + +getInputLineHist :: FilePath -> String -> IO (Maybe String) +getInputLineHist = getInputLineHistComp (\ _ -> return []) + +type CompleteFn = (String, String) -> IO [String] + +-- Get an input line with editing. +-- Return Nothing if the input is ^D, otherwise the typed string. +-- The FilePath gives the name of a file that stores the history. +getInputLineHistComp :: CompleteFn -> FilePath -> String -> IO (Maybe String) +getInputLineHistComp comp hfn prompt = do + mhdl <- openFileM hfn ReadMode + hist <- + case mhdl of + Nothing -> return [] + Just hdl -> do + file <- hGetContents hdl + let h = lines file + seq (length h) (return h) -- force file to be read + putStr prompt + (hist', r) <- loop comp (reverse hist, []) "" "" +-- putStrLn $ "done: " ++ hfn ++ "\n" ++ unlines hist' + writeFile hfn $ unlines hist' + return r -- XXX no type error + +getRaw :: IO Char +getRaw = do + i <- c_getRaw + when (i < 0) $ + error "getRaw failed" + return (chr i) + +type Hist = ([String], [String]) + +loop :: CompleteFn -> Hist -> String -> String -> IO ([String], Maybe String) +loop comp hist before after = do + hFlush stdout + i <- getRaw + loop' comp hist before after i + +loop' :: CompleteFn -> Hist -> String -> String -> Char -> IO ([String], Maybe String) +loop' comp hist before after cmd = do + let + cur = reverse before ++ after + back n = putStr (replicate n '\b') + bsSpBs n = concat $ replicate n "\b \b" + + ins c = do + putChar c + putStr after + back (length after) + add c = do + ins c + loop comp hist (c:before) after + backward = + case before of + [] -> noop + c:cs -> do + back 1 + loop comp hist cs (c:after) + forward = + case after of + [] -> noop + c:cs -> do + putChar c + loop comp hist (c:before) cs + bol = do + back (length before) + loop comp hist [] cur + eol = do + putStr after + loop comp hist (reverse after ++ before) [] + bs = do + case before of + [] -> noop + _:cs -> do + back 1 + putStr after + putChar ' ' + back (length after + 1) + loop comp hist cs after + del = do + case after of + [] -> noop + _:cs -> do + putStr cs + putChar ' ' + back (length cs + 1) + loop comp hist before cs + send = + ret (Just cur) + ret ms = do + putChar '\n' + hFlush stdout + let + o = reverse (fst hist) ++ snd hist + l = + case ms of + Nothing -> [] + Just [] -> [] + Just s | not (null o) && s == last o -> [] + | otherwise -> [s] + h = o ++ l + return (h, ms) + erase = do + eraseLine + loop comp hist [] [] + noop = loop comp hist before after + kill = do + putStr after + putStr $ bsSpBs $ length after + loop comp hist before [] + + next = + case hist of + (_, []) -> noop + (p, l:n) -> setLine (l:p, n) l + previous = + case hist of + ([], _) -> noop + (l:p, n) -> setLine (p, l:n) l + setLine h s = do + eraseLine + putStr s + loop comp h (reverse s) "" + + eraseLine = do + putStr after + putStr $ bsSpBs $ length before + length after + + complete = do + alts <- comp (before, after) + case alts of + [] -> loop comp hist before after + [s] -> do mapM_ ins s; loop comp hist (reverse s ++ before) after + ss -> tabLoop ss + + tabLoop (s:ss) = do + mapM_ ins s -- show first alternative + hFlush stdout + c <- getRaw + if c /= '\t' then + loop' comp hist (reverse s ++ before) after c + else do + let n = length s + back n -- back up this alternative + putStr after -- put back old text + putStr $ replicate n ' ' -- erase extra + back (n + length after) -- put cursor back + tabLoop (ss ++ [s]) -- try next alternative + + exec i = + case i of + '\^D' -> -- CTL-D, EOF + if null before && null after then + ret Nothing + else + del + '\^B' -> backward -- CTL-B, backwards + '\^F' -> forward -- CTL-F, forwards + '\^A' -> bol -- CTL-A, beginning of line + '\^E' -> eol -- CTL-E, end of line + '\b' -> bs -- BS, backspace + '\DEL' -> bs -- DEL, backspace + '\r' -> send -- CR, return + '\n' -> send -- LF, return + '\^N' -> next -- CTL-N, next line + '\^P' -> previous -- CTL-P, previous line + '\^U' -> erase -- CTL-U, erase line + '\^K' -> kill -- CTL-K, kill to eol + '\t' -> complete -- TAB, complete word + '\ESC' -> do -- ESC + b <- getRaw + if b /= '[' then + noop + else do + c <- getRaw + case c of + 'A' -> previous + 'B' -> next + 'C' -> forward + 'D' -> backward + _ -> noop + _ -> if i >= ' ' && i < '\DEL' then add i else noop + + exec cmd diff --git a/src/MicroHs/Compile.hs b/src/MicroHs/Compile.hs --- a/src/MicroHs/Compile.hs +++ b/src/MicroHs/Compile.hs @@ -2,10 +2,13 @@ -- See LICENSE file for full license. module MicroHs.Compile( compileCacheTop, - mhsCacheName, + compileMany, + maybeSaveCache, getCached, validateCache, Cache, emptyCache, deleteFromCache, + moduleToFile, + packageDir, packageSuffix, packageTxtSuffix, ) where import Prelude import Data.List @@ -14,6 +17,8 @@ import System.Environment import System.IO import System.IO.MD5 +import System.IO.Serialize +import System.IO.TimeMilli import System.Process import Control.DeepSeq import MicroHs.Abstract @@ -24,8 +29,11 @@ import MicroHs.Flags import MicroHs.Ident import qualified MicroHs.IdentMap as M +import MicroHs.List +import MicroHs.Package import MicroHs.Parse import MicroHs.StateIO +import MicroHs.SymTab import MicroHs.TypeCheck import Compat import MicroHs.Instances() -- for ghc @@ -39,20 +47,16 @@ -- Compile the module with the given name, starting with the given cache. -- Return the "compiled module" and the resulting cache. -compileCacheTop :: Flags -> IdentModule -> Cache -> IO ((IdentModule, [(Ident, Exp)]), Cache) +compileCacheTop :: Flags -> IdentModule -> Cache -> IO ((IdentModule, [(Ident, Exp)]), Symbols, Cache) compileCacheTop flags mn ch = do - ((rmn, ds), ch') <- compile flags mn ch - t1 <- getTimeMilli - let - dsn = [ (n, compileOpt e) | (n, e) <- ds ] - () <- return (rnf dsn) - t2 <- getTimeMilli - when (verbosityGT flags 0) $ - putStrLn $ "combinator conversion " ++ padLeft 6 (show (t2-t1)) ++ "ms" - when (verbosityGT flags 3) $ - putStrLn $ "combinators:\n" ++ showLDefs dsn - return ((rmn, dsn), ch') + res@((_, ds), _, _) <- compile flags mn ch + when (verbosityGT flags 4) $ + putStrLn $ "combinators:\n" ++ showLDefs ds + return res +compileMany :: Flags -> [IdentModule] -> Cache -> IO Cache +compileMany flags mns ach = snd <$> runStateIO (mapM_ (compileModuleCached flags ImpNormal) mns) ach + getCached :: Flags -> IO Cache getCached flags | not (readCache flags) = return emptyCache getCached flags = do @@ -65,112 +69,169 @@ putStrLn $ "Loading saved cache " ++ show mhsCacheName validateCache flags cash -compile :: Flags -> IdentModule -> Cache -> IO ((IdentModule, [LDef]), Cache) +maybeSaveCache :: Flags -> Cache -> IO () +maybeSaveCache flags cash = + when (writeCache flags) $ do + when (verbosityGT flags 0) $ + putStrLn $ "Saving cache " ++ show mhsCacheName + () <- seq (rnfNoErr cash) (return ()) + saveCache mhsCacheName cash + +compile :: Flags -> IdentModule -> Cache -> IO ((IdentModule, [LDef]), Symbols, Cache) compile flags nm ach = do - ((cm, t), ch) <- runStateIO (compileModuleCached flags nm) ach + let comp = do +--XXX modify $ addBoot $ mkIdent "Control.Exception.Internal" -- the compiler generates references to this module + r <- compileModuleCached flags ImpNormal nm + let loadBoots = do + bs <- gets getBoots + case bs of + [] -> return () + bmn:_ -> do + when (verbosityGT flags 0) $ + liftIO $ putStrLn $ "compiling used boot module " ++ showIdent bmn + _ <- compileModuleCached flags ImpNormal bmn + loadBoots + loadBoots + loadDependencies flags + return r + ((cm, syms, t), ch) <- runStateIO comp ach when (verbosityGT flags 0) $ putStrLn $ "total import time " ++ padLeft 6 (show t) ++ "ms" - return ((tModuleName $ tModuleOf cm, concatMap bindingsOf $ map tModuleOf $ M.elems $ cache ch), ch) + return ((tModuleName cm, concatMap bindingsOf $ cachedModules ch), syms, ch) -- Compile a module with the given name. -- If the module has already been compiled, return the cached result. -compileModuleCached :: Flags -> IdentModule -> StateIO Cache (CModule, Time) -compileModuleCached flags mn = do - ch <- gets cache - case M.lookup mn ch of - Nothing -> do - ws <- gets working - when (elem mn ws) $ - error $ "recursive module: " ++ showIdent mn ++ ", import chain: " ++ unwords (map showIdent ws) - modify $ \ c -> updWorking (mn : working c) c - when (verbosityGT flags 0) $ - liftIO $ putStrLn $ "importing " ++ showIdent mn - (cm, tp, tt, ts) <- compileModule flags mn - when (verbosityGT flags 0) $ - liftIO $ putStrLn $ "importing done " ++ showIdent mn ++ ", " ++ show (tp + tt) ++ - "ms (" ++ show tp ++ " + " ++ show tt ++ ")" - when (loading flags && mn /= mkIdent "Interactive") $ - liftIO $ putStrLn $ "loaded " ++ showIdent mn - cash <- get - put $ workToDone cm cash - return (cm, tp + tt + ts) - Just cm -> do - when (verbosityGT flags 0) $ +-- If the module has not been compiled, first try to find a source file. +-- If there is no source file, try loading a package. +compileModuleCached :: Flags -> ImpType -> IdentModule -> StateIO Cache (TModule [LDef], Symbols, Time) +compileModuleCached flags impt mn = do + cash <- get + case lookupCache mn cash of + Nothing -> + case impt of + ImpBoot -> compileBootModule flags mn + ImpNormal -> do + when (verbosityGT flags 1) $ + liftIO $ putStrLn $ "importing " ++ showIdent mn + mres <- liftIO (readModulePath flags ".hs" mn) + case mres of + Nothing -> findPkgModule flags mn + Just (pathfn, file) -> do + modify $ addWorking mn + compileModule flags ImpNormal mn pathfn file + Just tm -> do + when (verbosityGT flags 1) $ liftIO $ putStrLn $ "importing cached " ++ showIdent mn - return (cm, 0) + return (tm, noSymbols, 0) --- Find and compile a module with the given name. --- The times are (parsing, typecheck+desugar, imported modules) -compileModule :: Flags -> IdentModule -> StateIO Cache (CModule, Time, Time, Time) -compileModule flags nm = do +noSymbols :: Symbols +noSymbols = (stEmpty, stEmpty) + +compileBootModule :: Flags -> IdentModule -> StateIO Cache (TModule [LDef], Symbols, Time) +compileBootModule flags mn = do + when (verbosityGT flags 0) $ + liftIO $ putStrLn $ "importing boot " ++ showIdent mn + mres <- liftIO (readModulePath flags ".hs-boot" mn) + case mres of + Nothing -> error $ "boot module not found: " ++ showIdent mn + Just (pathfn, file) -> do + modify $ addBoot mn + compileModule flags ImpBoot mn pathfn file + +compileModule :: Flags -> ImpType -> IdentModule -> FilePath -> String -> StateIO Cache (TModule [LDef], Symbols, Time) +compileModule flags impt mn pathfn file = do t1 <- liftIO getTimeMilli - (pathfn, file) <- liftIO (readModulePath flags nm) mchksum <- liftIO (md5File pathfn) -- XXX there is a small gap between reading and computing the checksum. let chksum :: MD5CheckSum chksum = fromMaybe undefined mchksum let pmdl = parseDie pTop pathfn file - mdl@(EModule nmn _ defs) = addPreludeImport pmdl + mdl@(EModule mnn _ defs) = addPreludeImport pmdl + when (verbosityGT flags 4) $ + liftIO $ putStrLn $ "parsed:\n" ++ show pmdl -- liftIO $ putStrLn $ showEModule mdl -- liftIO $ putStrLn $ showEDefs defs - -- TODO: skip test when nm is a file name - when (isNothing (getFileName nm) && nm /= nmn) $ - error $ "module name does not agree with file name: " ++ showIdent nm ++ " " ++ showIdent nmn + -- TODO: skip test when mn is a file name + when (isNothing (getFileName mn) && mn /= mnn) $ + error $ "module name does not agree with file name: " ++ showIdent mn ++ " " ++ showIdent mnn let specs = [ s | Import s <- defs ] - imported = [ m | ImportSpec _ m _ _ <- specs ] + imported = [ (boot, m) | ImportSpec boot _ m _ _ <- specs ] t2 <- liftIO getTimeMilli - (impMdls, ts) <- fmap unzip $ mapM (compileModuleCached flags) imported + (impMdls, _, tImps) <- fmap unzip3 $ mapM (uncurry $ compileModuleCached flags) imported + t3 <- liftIO getTimeMilli let - tmdl = typeCheck (zip specs (map tModuleOf impMdls)) mdl - when (verbosityGT flags 2) $ + (tmdl, syms) = typeCheck impt (zip specs impMdls) mdl + when (verbosityGT flags 3) $ liftIO $ putStrLn $ "type checked:\n" ++ showTModule showEDefs tmdl ++ "-----\n" let dmdl = desugar flags tmdl () <- return $ rnf $ bindingsOf dmdl t4 <- liftIO getTimeMilli - when (verbosityGT flags 3) $ + + let + cmdl = setBindings [ (i, compileOpt e) | (i, e) <- bindingsOf dmdl ] dmdl + () <- return $ rnf $ bindingsOf cmdl + t5 <- liftIO getTimeMilli + + let tParse = t2 - t1 + tTCDesug = t4 - t3 + tAbstract = t5 - t4 + tImp = sum tImps + tTot = t5 - t1 + + when (verbosityGT flags 4) $ (liftIO $ putStrLn $ "desugared:\n" ++ showTModule showLDefs dmdl) - let cmdl = CModule dmdl imported chksum - return (cmdl, t2-t1, t4-t3, sum ts) + when (verbosityGT flags 0) $ + liftIO $ putStrLn $ "importing done " ++ showIdent mn ++ ", " ++ show (tParse + tTCDesug + tAbstract) ++ + "ms (" ++ show tParse ++ " + " ++ show tTCDesug ++ " + " ++ show tAbstract ++ ")" + when (loading flags && mn /= mkIdent "Interactive" && not (verbosityGT flags 0)) $ + liftIO $ putStrLn $ "loaded " ++ showIdent mn + case impt of + ImpNormal -> modify $ workToDone (cmdl, map snd imported, chksum) + ImpBoot -> return () + + return (cmdl, syms, tTot + tImp) + addPreludeImport :: EModule -> EModule addPreludeImport (EModule mn es ds) = EModule mn es ds' where ds' = ps' ++ nps (ps, nps) = partition isImportPrelude ds - isImportPrelude (Import (ImportSpec _ i _ _)) = i == idPrelude + isImportPrelude (Import (ImportSpec _ _ i _ _)) = i == idPrelude isImportPrelude _ = False idPrelude = mkIdent "Prelude" ps' = case ps of - [] -> [Import $ ImportSpec False idPrelude Nothing Nothing] -- no Prelude imports, so add 'import Prelude' - [Import (ImportSpec False _ Nothing (Just (False, [])))] -> [] -- exactly 'import Prelude()', so import nothing + [] -> [Import $ ImportSpec ImpNormal False idPrelude Nothing Nothing] -- no Prelude imports, so add 'import Prelude' + [Import (ImportSpec ImpNormal False _ Nothing (Just (False, [])))] -> [] -- exactly 'import Prelude()', so import nothing _ -> ps -- keep the given Prelude imports ------------------------------------------- validateCache :: Flags -> Cache -> IO Cache -validateCache flags cash = execStateIO (mapM_ validate (M.keys (cache cash))) cash +validateCache flags acash = execStateIO (mapM_ (validate . fst) fdeps) acash where - deps = invertGraph [ (tModuleName tm, imps) | CModule tm imps _ <- M.elems (cache cash) ] + fdeps = getImportDeps acash -- forwards dependencies + deps = invertGraph fdeps -- backwards dependencies invalidate :: IdentModule -> StateIO Cache () invalidate mn = do - b <- gets $ isJust . M.lookup mn . cache + b <- gets $ isJust . lookupCache mn when b $ do -- It's still in the cache, so invalidate it, and all modules that import it - when (verbosityGT flags 0) $ + when (verbosityGT flags 1) $ liftIO $ putStrLn $ "invalidate cached " ++ show mn modify (deleteFromCache mn) mapM_ invalidate $ fromMaybe [] $ M.lookup mn deps validate :: IdentModule -> StateIO Cache () validate mn = do - ch <- get - case M.lookup mn (cache ch) of + cash <- get + case lookupCacheChksum mn cash of Nothing -> return () -- no longer in the cache, so just ignore. - Just (CModule _ _ chksum) -> do - mhdl <- liftIO $ findModulePath flags mn + Just chksum -> do + mhdl <- liftIO $ findModulePath flags ".hs" mn case mhdl of Nothing -> -- Cannot find module, so invalidate it @@ -198,18 +259,17 @@ | otherwise = Nothing where s = unIdent m --- TODO: --- * with the CPP flag, run the prepocessor on the file -readModulePath :: Flags -> IdentModule -> IO (FilePath, String) -readModulePath flags mn | Just fn <- getFileName mn = do +readModulePath :: Flags -> String -> IdentModule -> IO (Maybe (FilePath, String)) +readModulePath flags suf mn | Just fn <- getFileName mn = do mh <- openFileM fn ReadMode case mh of Nothing -> errorMessage (getSLoc mn) $ "File not found: " ++ show fn Just h -> readRest fn h + | otherwise = do - mh <- findModulePath flags mn + mh <- findModulePath flags suf mn case mh of - Nothing -> errorMessage (getSLoc mn) $ "Module not found: " ++ show mn ++ "\nsearch path=" ++ show (paths flags) + Nothing -> return Nothing Just (fn, h) -> readRest fn h where readRest fn h = do file <- @@ -218,13 +278,16 @@ runCPPTmp flags fn else hGetContents h - return (fn, file) + return (Just (fn, file)) -findModulePath :: Flags -> IdentModule -> IO (Maybe (FilePath, Handle)) -findModulePath flags mn = do +moduleToFile :: IdentModule -> FilePath +moduleToFile mn = map (\ c -> if c == '.' then '/' else c) (unIdent mn) + +findModulePath :: Flags -> String -> IdentModule -> IO (Maybe (FilePath, Handle)) +findModulePath flags suf mn = do let - fn = map (\ c -> if c == '.' then '/' else c) (unIdent mn) ++ ".hs" + fn = moduleToFile mn ++ suf openFilePath (paths flags) fn openFilePath :: [FilePath] -> FilePath -> IO (Maybe (FilePath, Handle)) @@ -262,3 +325,61 @@ when (verbosityGT flags 0) $ putStrLn $ "Execute: " ++ show cmd callCommand cmd + +packageDir :: String +packageDir = "packages" +packageSuffix :: String +packageSuffix = ".pkg" +packageTxtSuffix :: String +packageTxtSuffix = ".txt" + +findPkgModule :: Flags -> IdentModule -> StateIO Cache (TModule [LDef], Symbols, Time) +findPkgModule flags mn = do + let fn = moduleToFile mn ++ packageTxtSuffix + mres <- liftIO $ openFilePath (pkgPath flags) fn + case mres of + Just (pfn, hdl) -> do + -- liftIO $ putStrLn $ "findPkgModule " ++ pfn + pkg <- liftIO $ hGetContents hdl -- this closes the handle + let dir = take (length pfn - length fn) pfn -- directory where the file was found + loadPkg flags (dir ++ "/" ++ packageDir ++ "/" ++ pkg) + cash <- get + case lookupCache mn cash of + Nothing -> error $ "package does not contain module " ++ pkg ++ " " ++ showIdent mn + Just t -> return (t, noSymbols, 0) + Nothing -> + errorMessage (getSLoc mn) $ + "Module not found: " ++ show mn ++ + "\nsearch path=" ++ show (paths flags) ++ + "\npackage path=" ++ show (pkgPath flags) + +loadPkg :: Flags -> FilePath -> StateIO Cache () +loadPkg flags fn = do + when (loading flags || verbosityGT flags 0) $ + liftIO $ putStrLn $ "loading package " ++ fn + pkg <- liftIO $ readSerialized fn + modify $ addPackage pkg + +-- XXX add function to find&load package from package name + +-- Load all packages that we depend on, but that are not already loaded. +loadDependencies :: Flags -> StateIO Cache () +loadDependencies flags = do + loadedPkgs <- gets getPkgs + let deps = concatMap pkgDepends loadedPkgs + loaded = map pkgName loadedPkgs + deps' = [ p | (p, _v) <- deps, p `notElem` loaded ] + if null deps' then + return () + else do + mapM_ (loadDeps flags) deps' + loadDependencies flags -- loadDeps can add new dependencies + +loadDeps :: Flags -> IdentPackage -> StateIO Cache () +loadDeps flags pid = do + mres <- liftIO $ openFilePath (pkgPath flags) (packageDir ++ "/" ++ unIdent pid ++ packageSuffix) + case mres of + Nothing -> error $ "Cannot find package " ++ showIdent pid + Just (pfn, hdl) -> do + liftIO $ hClose hdl + loadPkg flags pfn diff --git a/src/MicroHs/CompileCache.hs b/src/MicroHs/CompileCache.hs --- a/src/MicroHs/CompileCache.hs +++ b/src/MicroHs/CompileCache.hs @@ -1,49 +1,95 @@ module MicroHs.CompileCache( - CModule(..), tModuleOf, - Cache, cache, working, updWorking, emptyCache, deleteFromCache, workToDone, + CModule, + Cache, addWorking, emptyCache, deleteFromCache, workToDone, addBoot, getBoots, + cachedModules, lookupCache, lookupCacheChksum, getImportDeps, + addPackage, getCompMdls, getPkgs, saveCache, loadCached, ) where import Prelude import MicroHs.Desugar(LDef) import MicroHs.Expr(IdentModule) ---import MicroHs.Ident +import MicroHs.Ident(showIdent) import qualified MicroHs.IdentMap as M -import MicroHs.TypeCheck(TModule) +import MicroHs.Package +import MicroHs.TypeCheck(TModule, tModuleName) import System.IO import System.IO.Serialize import System.IO.MD5(MD5CheckSum) import Compat -data CModule = CModule +type CModule = (TModule [LDef], [IdentModule], MD5CheckSum) + +data CacheEntry = + CompMdl -- module compiled in in this session (TModule [LDef]) -- the cached module [IdentModule] -- imported module names MD5CheckSum -- checksum of the source file + | PkgMdl -- module from a package + (TModule [LDef]) -- the cached module -- deriving (Show) -tModuleOf :: CModule -> TModule [LDef] -tModuleOf (CModule t _ _) = t +tModuleOf :: CacheEntry -> TModule [LDef] +tModuleOf (CompMdl t _ _) = t +tModuleOf (PkgMdl t) = t -data Cache = Cache [IdentModule] (M.Map CModule) +chksumOf :: CacheEntry -> MD5CheckSum +chksumOf (CompMdl _ _ k) = k +chksumOf _ = undefined + +data Cache = Cache { + working :: [IdentModule], -- modules currently being processed (used to detected circular imports) + boots :: [IdentModule], -- modules where only the boot version has been compiled + cache :: M.Map CacheEntry, -- cached compiled modules + pkgs :: [Package] -- loaded packages + } -- deriving (Show) -working :: Cache -> [IdentModule] -working (Cache x _) = x +emptyCache :: Cache +emptyCache = Cache { working = [], boots = [], cache = M.empty, pkgs = [] } -updWorking :: [IdentModule] -> Cache -> Cache -updWorking w (Cache _ m) = Cache w m +deleteFromCache :: IdentModule -> Cache -> Cache +deleteFromCache mn c = c{ cache = M.delete mn (cache c) } -cache :: Cache -> M.Map CModule -cache (Cache _ x) = x +addBoot :: IdentModule -> Cache -> Cache +addBoot mn c = c{ boots = mn : boots c } -emptyCache :: Cache -emptyCache = Cache [] M.empty +getBoots :: Cache -> [IdentModule] +getBoots = boots -deleteFromCache :: IdentModule -> Cache -> Cache -deleteFromCache mn (Cache is m) = Cache is (M.delete mn m) +addWorking :: IdentModule -> Cache -> Cache +addWorking mn c = + let ws = working c + in if elem mn ws then + error $ "recursive module: " ++ showIdent mn ++ ", import chain: " ++ unwords (map showIdent ws) + else + c{ working = mn : ws } workToDone :: CModule -> Cache -> Cache -workToDone cm (Cache (mn:ws) m) = Cache ws (M.insert mn cm m) +workToDone (t, i, k) c@(Cache{ working = mn:ws, boots = bs, cache = m }) = + c{ working = ws, boots = filter (/= mn) bs, cache = M.insert mn (CompMdl t i k) m } workToDone _ _ = undefined + +cachedModules :: Cache -> [TModule [LDef]] +cachedModules = map tModuleOf . M.elems . cache + +lookupCache :: IdentModule -> Cache -> Maybe (TModule [LDef]) +lookupCache mn c = tModuleOf <$> M.lookup mn (cache c) + +lookupCacheChksum :: IdentModule -> Cache -> Maybe MD5CheckSum +lookupCacheChksum mn c = chksumOf <$> M.lookup mn (cache c) + +getImportDeps :: Cache -> [(IdentModule, [IdentModule])] +getImportDeps cash = [ (tModuleName tm, imps) | CompMdl tm imps _ <- M.elems (cache cash) ] + +getCompMdls :: Cache -> [TModule [LDef]] +getCompMdls cash = [ tm | CompMdl tm _ _ <- M.elems (cache cash) ] + +getPkgs :: Cache -> [Package] +getPkgs = pkgs + +addPackage :: Package -> Cache -> Cache +addPackage p c = c{ pkgs = p : pkgs c, cache = foldr ins (cache c) (pkgExported p) } + where ins t = M.insert (tModuleName t) (PkgMdl t) saveCache :: FilePath -> Cache -> IO () saveCache fn cash = writeSerializedCompressed fn cash diff --git a/src/MicroHs/Deriving.hs b/src/MicroHs/Deriving.hs --- a/src/MicroHs/Deriving.hs +++ b/src/MicroHs/Deriving.hs @@ -24,7 +24,7 @@ ,("Data.Ix.Ix", derNotYet) ,("Data.Ord.Ord", derOrd) ,("Data.Typeable.Typeable", derTypeable) - ,("Text.Read.Read", derShow) + ,("Text.Read.Read", derNotYet) ,("Text.Show.Show", derShow) ] @@ -59,7 +59,7 @@ let loc = getSLoc tycon qtycon = qualIdent mn tycon eFld = EVar fld - undef = EVar $ mkQIdent loc nameControlError "undefined" -- XXX could be nicer + undef = mkExn loc (unIdent fld) "recSelError" iHasField = mkIdentSLoc loc nameHasField iSetField = mkIdentSLoc loc nameSetField igetField = mkQIdent loc nameDataRecords namegetField @@ -104,9 +104,6 @@ nameDataRecords :: String nameDataRecords = "Data.Records" - -nameControlError :: String -nameControlError = "Control.Error" mkGetName :: Ident -> Ident -> Ident mkGetName tycon fld = qualIdent (mkIdent "get") $ qualIdent tycon fld diff --git a/src/MicroHs/Desugar.hs b/src/MicroHs/Desugar.hs --- a/src/MicroHs/Desugar.hs +++ b/src/MicroHs/Desugar.hs @@ -15,7 +15,6 @@ import Data.Ratio import Control.Monad.State.Strict as S import Debug.Trace -import Compat import GHC.Stack import MicroHs.EncodeData @@ -24,6 +23,7 @@ import MicroHs.Flags import MicroHs.Graph import MicroHs.Ident +import MicroHs.List import MicroHs.TypeCheck type LDef = (Ident, Exp) @@ -201,6 +201,7 @@ dsExpr $ dsCompr e stmts l EApp f a -> App (dsExpr f) (dsExpr a) ELam qs -> dsEqns (getSLoc aexpr) qs + ELit l (LExn s) -> Var (mkIdentSLoc l s) ELit _ (LChar c) -> Lit (LInt (ord c)) ELit _ (LInteger i) -> encodeInteger i ELit _ (LRat i) -> encodeRational i @@ -212,17 +213,14 @@ EListish (LList es) -> encList $ map dsExpr es EListish (LCompr e stmts) -> dsExpr $ dsCompr e stmts (EListish (LList [])) ECon c -> - let - ci = conIdent c - in - case getTupleConstr ci of + case getTupleConstr (conIdent c) of Just n -> let xs = [mkIdent ("x" ++ show i) | i <- [1 .. n] ] body = mkTupleE $ map Var xs in foldr Lam body xs Nothing -> Var (conIdent c) - _ -> impossible + _ -> impossibleShow aexpr dsCompr :: Expr -> [EStmt] -> Expr -> Expr dsCompr e [] l = EApp (EApp consCon e) l @@ -266,7 +264,7 @@ ELit _ _ -> apat ENegApp _ -> apat EViewPat _ _ -> apat - ELazy _ pat -> dsPat pat -- XXX for now, just ignore ~ and ! + ELazy b pat -> ELazy b (dsPat pat) _ -> impossible iNil :: Ident @@ -337,10 +335,37 @@ supply = newVars "$x" used ds xs aes = case aes of - [] -> dsMatrix (eMatchErr loc) (reverse xs) mtrx + [] -> dsMatrixL (eMatchErr loc) (reverse xs) mtrx e:es -> letBind (return e) $ \ x -> ds (x:xs) es in evalState (ds [] ss) supply +-- Handle lazy and strict bindings +dsMatrixL :: HasCallStack => + Exp -> [Exp] -> Matrix -> M Exp +dsMatrixL dflt is arms = dsMatrix dflt is (map dsLazy arms) + +dsLazy :: Arm -> Arm +dsLazy (ps, rhs) = + let ((_, rbs, ris), ps') = mapAccumL lazy (1, [], []) ps + lazy :: (Int, [EBind], [Exp]) -> EPat -> ((Int, [EBind], [Exp]), EPat) + lazy s@(n, bs, is) ap = + case ap of + ELazy False p'@(EVar i) -> ((n, bs, Var i : is), p') + ELazy False p' -> lazy (n, bs, is) p' + ELazy True p' -> ((n+1, b:bs, is), EVar v) + where v = mkIdent ("~" ++ show n) + b = BPat p' (EVar v) + EVar _ -> (s, ap) + EViewPat e p -> (s', EViewPat e p') where (s', p') = lazy s p + ECon _ -> (s, ap) + EApp p1 p2 -> (s'', EApp p1' p2') where (s', p1') = lazy s p1; (s'', p2') = lazy s' p2 + EAt i p -> (s', EAt i p') where (s', p') = lazy s p + _ -> impossible + in (ps', \ d -> dsBinds (reverse rbs) $ foldr eSeq (rhs d) (reverse ris)) + +eSeq :: Exp -> Exp -> Exp +eSeq e1 e2 = App (App (Lit (LPrim "seq")) e1) e2 + -- Desugar a pattern matrix. -- The input is a (usually identifier) vector e1, ..., en -- and patterns matrix p11, ..., p1n -> e1 @@ -418,8 +443,10 @@ _ -> encCase var pes dflt eMatchErr :: SLoc -> Exp -eMatchErr (SLoc fn l c) = - App (App (App (Lit (LPrim "noMatch")) (Lit (LStr fn))) (Lit (LInt l))) (Lit (LInt c)) +eMatchErr loc = + let exn = mkIdentSLoc loc "Control.Exception.Internal.patternMatchFail" + msg = LStr $ show loc + in App (Var exn) (Lit msg) -- If the first expression isn't a variable/literal, then use -- a let binding and pass variable to f. diff --git a/src/MicroHs/EncodeData.hs b/src/MicroHs/EncodeData.hs --- a/src/MicroHs/EncodeData.hs +++ b/src/MicroHs/EncodeData.hs @@ -6,11 +6,10 @@ encIf, encList, ) where -import Prelude +import Data.List import MicroHs.Exp import MicroHs.Expr(Con(..), Lit(..)) import MicroHs.Ident -import Compat -- -- Encoding of constructors and case @@ -123,7 +122,7 @@ t = -- newIdent "$tt" es -- mkIdent "$tt" --es = var : dflt : map snd pes - pes' = sortLE (\ (x, _, _) (y, _, _) -> x <= y) + pes' = sortBy (\ (x, _, _) (y, _, _) -> compare x y) [(conNo c, xs, e) | (SPat c xs, e) <- pes] caseTree :: Exp -> Exp -> Int -> Int -> [(Int, [Ident], Exp)] -> Exp -> Exp diff --git a/src/MicroHs/Exp.hs b/src/MicroHs/Exp.hs --- a/src/MicroHs/Exp.hs +++ b/src/MicroHs/Exp.hs @@ -15,9 +15,9 @@ import Data.List import MicroHs.Ident import MicroHs.Expr(Lit(..), showLit) +import MicroHs.List import Text.PrettyPrint.HughesPJ import Control.DeepSeq -import Compat import Debug.Trace type PrimOp = String diff --git a/src/MicroHs/ExpPrint.hs b/src/MicroHs/ExpPrint.hs --- a/src/MicroHs/ExpPrint.hs +++ b/src/MicroHs/ExpPrint.hs @@ -48,8 +48,7 @@ e -> e def :: (String -> String) -> (Int, Exp) -> (String -> String) def r (i, e) = - --(("((A :" ++ show i ++ " ") ++) . toStringP (substv e) . (") " ++) . r . (")" ++) - ("A " ++) . toStringP (substv e) . ((":" ++ show i ++ " @\n") ++) . r . (" @" ++) + ("A " ++) . toStringP (substv e) . ((":" ++ show i ++ " @\n") ++) . r . ("@" ++) in combVersion ++ show ndefs ++ "\n" ++ res " }" -- Avoid quadratic concatenation by using difference lists, @@ -72,7 +71,7 @@ Lit l -> (showLit l ++) . (' ' :) Lam _x _e -> undefined -- (("(\\" ++ showIdent x ++ " ") ++) . toStringP e . (")" ++) --App f a -> ("(" ++) . toStringP f . (" " ++) . toStringP a . (")" ++) - App f a -> toStringP f . toStringP a . ("@ " ++) + App f a -> toStringP f . toStringP a . ("@" ++) quoteString :: String -> String quoteString s = diff --git a/src/MicroHs/Expr.hs b/src/MicroHs/Expr.hs --- a/src/MicroHs/Expr.hs +++ b/src/MicroHs/Expr.hs @@ -4,6 +4,7 @@ ExportItem(..), ImportSpec(..), ImportItem(..), + ImpType(..), EDef(..), showEDefs, Expr(..), eLam, eEqn, eEqns, showExpr, eqExpr, Listish(..), @@ -42,6 +43,10 @@ eDummy, impossible, impossibleShow, getArrow, getArrows, + showExprRaw, + mkEStr, mkExn, + getAppM, + TyVar, freeTyVars, ) where import Prelude hiding ((<>)) import Control.Arrow(first) @@ -60,8 +65,8 @@ data ExportItem = ExpModule IdentModule - | ExpTypeCon Ident - | ExpType Ident + | ExpTypeSome Ident [Ident] + | ExpTypeAll Ident | ExpValue Ident --DEBUG deriving (Show) @@ -80,12 +85,15 @@ | Default [EType] --DEBUG deriving (Show) -data ImportSpec = ImportSpec Bool Ident (Maybe Ident) (Maybe (Bool, [ImportItem])) -- first Bool indicates 'qualified', second 'hiding' +data ImpType = ImpNormal | ImpBoot + deriving (Eq) + +data ImportSpec = ImportSpec ImpType Bool Ident (Maybe Ident) (Maybe (Bool, [ImportItem])) -- first Bool indicates 'qualified', second 'hiding' --DEBUG deriving (Show) data ImportItem - = ImpTypeCon Ident - | ImpType Ident + = ImpTypeSome Ident [Ident] + | ImpTypeAll Ident | ImpValue Ident --DEBUG deriving (Show) @@ -185,6 +193,7 @@ | LStr String | LUStr String -- UTF-8 encoded string | LPrim String + | LExn String -- exception to raise | LForImp String CType | LTick String --DEBUG deriving (Show) @@ -549,6 +558,9 @@ showExpr :: Expr -> String showExpr = render . ppExpr +showExprRaw :: Expr -> String +showExprRaw = render . ppExprRaw + showEDefs :: [EDef] -> String showEDefs = render . ppEDefs @@ -564,10 +576,14 @@ ppImportItem :: ImportItem -> Doc ppImportItem ae = case ae of - ImpTypeCon i -> ppIdent i <> text "(..)" - ImpType i -> ppIdent i + ImpTypeSome i [] -> ppIdent i + ImpTypeSome i is -> ppIdent i <> parens (ppCommaSep $ map ppIdent is) + ImpTypeAll i -> ppIdent i <> text "(..)" ImpValue i -> ppIdent i +ppCommaSep :: [Doc] -> Doc +ppCommaSep = hsep . punctuate (text ",") + ppEDef :: EDef -> Doc ppEDef def = case def of @@ -578,7 +594,9 @@ Fcn i eqns -> ppEqns (ppIdent i) (text "=") eqns Sign is t -> hsep (punctuate (text ",") (map ppIdent is)) <+> text "::" <+> ppEType t KindSign i t -> text "type" <+> ppIdent i <+> text "::" <+> ppEKind t - Import (ImportSpec q m mm mis) -> text "import" <+> (if q then text "qualified" else empty) <+> ppIdent m <> text (maybe "" ((" as " ++) . unIdent) mm) <> + Import (ImportSpec b q m mm mis) -> text "import" <+> + (if b == ImpBoot then text "{-# SOURCE #-}" else empty) <+> + (if q then text "qualified" else empty) <+> ppIdent m <> text (maybe "" ((" as " ++) . unIdent) mm) <> case mis of Nothing -> empty Just (h, is) -> text (if h then " hiding" else "") <> parens (hsep $ punctuate (text ",") (map ppImportItem is)) @@ -619,6 +637,7 @@ ppLHS (f, vs) = hsep (ppIdent f : map ppIdKind vs) ppIdKind :: IdKind -> Doc +ppIdKind (IdKind i (EVar d)) | isDummyIdent d = ppIdent i ppIdKind (IdKind i k) = parens $ ppIdent i <> text "::" <> ppEKind k ppEDefs :: [EDef] -> Doc @@ -641,48 +660,61 @@ ppAlt :: Doc -> EAlt -> Doc ppAlt asep (ss, e) = text " |" <+> hsep (punctuate (text ",") (map ppEStmt ss)) <+> asep <+> ppExpr e +ppExprRaw :: Expr -> Doc +ppExprRaw = ppExprR True + ppExpr :: Expr -> Doc -ppExpr ae = - case ae of - EVar i | isOperChar cop -> parens (text op) - | otherwise -> text s - where op = unIdent (unQualIdent i) - s = if "inst$" `isPrefixOf` op then unIdent i else op - cop = head op - EApp _ _ -> ppApp [] ae - EOper e ies -> ppExpr (foldl (\ e1 (i, e2) -> EApp (EApp (EVar i) e1) e2) e ies) - ELam qs -> parens $ text "\\" <> ppEqns empty (text "->") qs - ELit _ i -> text (showLit i) - ECase e as -> text "case" <+> ppExpr e <+> text "of" $$ nest 2 (vcat (map ppCaseArm as)) - ELet bs e -> text "let" $$ nest 2 (vcat (map ppEBind bs)) $$ text "in" <+> ppExpr e - ETuple es -> parens $ hsep $ punctuate (text ",") (map ppExpr es) - EDo mn ss -> maybe (text "do") (\ n -> ppIdent n <> text ".do") mn $$ nest 2 (vcat (map ppEStmt ss)) - ESectL e i -> parens $ ppExpr e <+> ppIdent i - ESectR i e -> parens $ ppIdent i <+> ppExpr e - EIf e1 e2 e3 -> parens $ sep [text "if" <+> ppExpr e1, text "then" <+> ppExpr e2, text "else" <+> ppExpr e3] - EListish l -> ppListish l - ESign e t -> parens $ ppExpr e <+> text "::" <+> ppEType t - ENegApp e -> text "-" <+> ppExpr e - EUpdate ee ies -> ppExpr ee <> text "{" <+> hsep (punctuate (text ",") (map ppField ies)) <+> text "}" - ESelect is -> parens $ hcat $ map (\ i -> text "." <> ppIdent i) is - EAt i e -> ppIdent i <> text "@" <> ppExpr e - EViewPat e p -> parens $ ppExpr e <+> text "->" <+> ppExpr p - ELazy True p -> text "~" <> ppExpr p - ELazy False p -> text "!" <> ppExpr p - EUVar i -> text ("_a" ++ show i) - ECon c -> ppCon c - EForall iks e -> ppForall iks <+> ppEType e --- where -ppApp :: [Expr] -> Expr -> Doc -ppApp as (EApp f a) = ppApp (a:as) f -ppApp as (EVar i) | isOperChar cop, [a, b] <- as = parens $ ppExpr a <+> text op <+> ppExpr b - | isOperChar cop, [a] <- as = parens $ ppExpr a <+> text op - | cop == ',' = ppExpr (ETuple as) - | op == "[]", length as == 1 = ppExpr (EListish (LList as)) - where op = unIdent (unQualIdent i) - cop = head op -ppApp as f = parens $ hsep (map ppExpr (f:as)) +ppExpr = ppExprR False +ppExprR :: Bool -> Expr -> Doc +ppExprR raw = ppE + where + ppE :: Expr -> Doc + ppE ae = + case ae of + EVar i | raw -> text (unIdent i) + | isOperChar cop -> parens (text op) + | otherwise -> text s + where op = unIdent (unQualIdent i) + si = unIdent i + s = if "inst$" `isInfixOf` si then si else op + cop = head op + EApp _ _ -> ppApp [] ae + EOper e ies -> ppE (foldl (\ e1 (i, e2) -> EApp (EApp (EVar i) e1) e2) e ies) + ELam qs -> parens $ text "\\" <> ppEqns empty (text "->") qs + ELit _ i -> text (showLit i) + ECase e as -> text "case" <+> ppE e <+> text "of" $$ nest 2 (vcat (map ppCaseArm as)) + ELet bs e -> text "let" $$ nest 2 (vcat (map ppEBind bs)) $$ text "in" <+> ppE e + ETuple es -> parens $ hsep $ punctuate (text ",") (map ppE es) + EDo mn ss -> maybe (text "do") (\ n -> ppIdent n <> text ".do") mn $$ nest 2 (vcat (map ppEStmt ss)) + ESectL e i -> parens $ ppE e <+> ppIdent i + ESectR i e -> parens $ ppIdent i <+> ppE e + EIf e1 e2 e3 -> parens $ sep [text "if" <+> ppE e1, text "then" <+> ppE e2, text "else" <+> ppE e3] + EListish l -> ppListish l + ESign e t -> parens $ ppE e <+> text "::" <+> ppEType t + ENegApp e -> text "-" <+> ppE e + EUpdate ee ies -> ppE ee <> text "{" <+> hsep (punctuate (text ",") (map ppField ies)) <+> text "}" + ESelect is -> parens $ hcat $ map (\ i -> text "." <> ppIdent i) is + EAt i e -> ppIdent i <> text "@" <> ppE e + EViewPat e p -> parens $ ppE e <+> text "->" <+> ppE p + ELazy True p -> text "~" <> ppE p + ELazy False p -> text "!" <> ppE p + EUVar i -> text ("_a" ++ show i) + ECon c -> ppCon c + EForall iks e -> ppForall iks <+> ppEType e + + ppApp :: [Expr] -> Expr -> Doc + ppApp as (EApp f a) = ppApp (a:as) f + ppApp as f | raw = ppApply f as + ppApp as (EVar i) | isOperChar cop, [a, b] <- as = parens $ ppE a <+> text op <+> ppExpr b + | isOperChar cop, [a] <- as = parens $ ppE a <+> text op + | cop == ',' = ppE (ETuple as) + | op == "[]", length as == 1 = ppE (EListish (LList as)) + where op = unIdent (unQualIdent i) + cop = head op + ppApp as f = ppApply f as + ppApply f as = parens $ hsep (map ppE (f:as)) + ppField :: EField -> Doc ppField (EField is e) = hcat (punctuate (text ".") (map ppIdent is)) <+> text "=" <+> ppExpr e ppField (EFieldPun is) = hcat (punctuate (text ".") (map ppIdent is)) @@ -722,6 +754,7 @@ LStr s -> show s LUStr s -> show s LPrim s -> s + LExn s -> s LForImp s _-> '^' : last (words s) -- XXX needs improvement LTick s -> '!' : s @@ -796,3 +829,47 @@ case getArrow at of Nothing -> ([], at) Just (t, r) -> first (t:) (getArrows r) + +mkEStr :: SLoc -> String -> Expr +mkEStr loc str = ESign (ELit loc (LStr str)) $ EListish $ LList [EVar $ mkIdentSLoc loc "Char"] + +-- Make a call to generate an exception with location info +mkExn :: SLoc -> String -> String -> Expr +mkExn loc msg exn = + let str = mkEStr loc $ msg ++ ", at " ++ show loc + fn = ELit loc $ LExn $ "Control.Exception.Internal." ++ exn + in EApp fn str + +getAppM :: HasCallStack => EType -> Maybe (Ident, [EType]) +getAppM = loop [] + where loop as (EVar i) = Just (i, as) + loop as (EApp f a) = loop (a:as) f + loop _ _ = Nothing + +type TyVar = Ident + +freeTyVars :: [EType] -> [TyVar] +-- Get the free TyVars from a type; no duplicates in result +freeTyVars = foldr (go []) [] + where + go :: [TyVar] -- Ignore occurrences of bound type variables + -> EType -- Type to look at + -> [TyVar] -- Accumulates result + -> [TyVar] + go bound (EVar tv) acc + | elem tv bound = acc + | elem tv acc = acc + | isConIdent tv = acc + | otherwise = tv : acc + go bound (EForall tvs ty) acc = go (map idKindIdent tvs ++ bound) ty acc + go bound (EApp fun arg) acc = go bound fun (go bound arg acc) + go _bound (EUVar _) acc = acc + go _bound (ECon _) acc = acc + go _bound (ELit _ _) acc = acc + go bound (EOper e ies) acc = go bound e (goList bound (map snd ies) acc) + go bound (ESign e _) acc = go bound e acc + go bound (EListish (LList [e])) acc = go bound e acc + go bound (ETuple es) acc = goList bound es acc + go _ x _ = error ("freeTyVars: " ++ show x) -- impossibleShow x + goList bound es acc = foldr (go bound) acc es + diff --git a/src/MicroHs/FFI.hs b/src/MicroHs/FFI.hs --- a/src/MicroHs/FFI.hs +++ b/src/MicroHs/FFI.hs @@ -92,7 +92,7 @@ checkIO :: EType -> EType checkIO iot = case getApp iIO iot of - Nothing -> errorMessage (getSLoc iot) $ "foreign return type must be IO" + Nothing -> errorMessage (getSLoc iot) $ "foreign return type must be IO: " ++ showEType iot Just t -> t getApp :: Ident -> EType -> Maybe EType @@ -171,5 +171,5 @@ "peek_ullong", "poke_ullong", "peek_llong", "poke_llong", "peek_flt", "poke_flt", "sizeof_int", "sizeof_long", "sizeof_llong", - "opendir", "closedir", "readdir", "c_d_name", "chdir" + "opendir", "closedir", "readdir", "c_d_name", "chdir", "mkdir" ] diff --git a/src/MicroHs/Flags.hs b/src/MicroHs/Flags.hs --- a/src/MicroHs/Flags.hs +++ b/src/MicroHs/Flags.hs @@ -12,9 +12,14 @@ useTicks :: Bool, -- emit ticks doCPP :: Bool, -- run ccphs on input files cppArgs :: [String], -- flags for CPP - compress :: Bool -- compress generated combinators + compress :: Bool, -- compress generated combinators + buildPkg :: Maybe FilePath, -- build a package + listPkg :: Maybe FilePath, -- list package contents + pkgPath :: [FilePath], -- package search path + installPkg :: Bool, -- install a package + target :: String -- Compile target defined in target.conf } - --deriving (Show) + -- deriving (Show) verbosityGT :: Flags -> Int -> Bool verbosityGT flags v = verbose flags > v @@ -32,5 +37,10 @@ useTicks = False, doCPP = False, cppArgs = [], - compress = False + compress = False, + buildPkg = Nothing, + listPkg = Nothing, + pkgPath = [], + installPkg = False, + target = "default" } diff --git a/src/MicroHs/Graph.hs b/src/MicroHs/Graph.hs --- a/src/MicroHs/Graph.hs +++ b/src/MicroHs/Graph.hs @@ -12,14 +12,11 @@ stronglyConnComp, SCC(..) ) where -import Prelude -import Compat - -import qualified Data.IntSet as IS -import qualified Data.IntMap as IM - import Data.List import Data.Maybe +import qualified Data.IntSet as IS +import qualified Data.IntMap as IM +import MicroHs.List data Tree a = Node a [Tree a] --deriving (Eq, Ord, Show) @@ -63,7 +60,7 @@ where (graph, vertex_fn) = graphFromEdges le edges0 forest = scc graph - mentions_itself v = elemBy (==) v (graph IM.! v) + mentions_itself v = elem v (graph IM.! v) decode (Node v []) | mentions_itself v = CyclicSCC [vertex_fn v] | otherwise = AcyclicSCC (vertex_fn v) decode other = CyclicSCC (dec other []) diff --git a/src/MicroHs/Interactive.hs b/src/MicroHs/Interactive.hs --- a/src/MicroHs/Interactive.hs +++ b/src/MicroHs/Interactive.hs @@ -1,45 +1,52 @@ module MicroHs.Interactive(module MicroHs.Interactive) where -import Prelude import Data.List +import Data.Maybe import Control.Exception import MicroHs.Compile import MicroHs.CompileCache import MicroHs.Desugar(LDef) import MicroHs.Expr(EType, showEType) import MicroHs.Flags -import MicroHs.Ident(mkIdent, Ident) -import qualified MicroHs.IdentMap as M +import MicroHs.Ident(mkIdent, Ident, unIdent, isIdentChar) +import MicroHs.List import MicroHs.Parse import MicroHs.StateIO -import MicroHs.SymTab(Entry(..)) +import MicroHs.SymTab(Entry(..), stEmpty, stKeysGlbU) import MicroHs.Translate -import MicroHs.TypeCheck(ValueExport(..), TypeExport(..), TModule(..)) +import MicroHs.TypeCheck(ValueExport(..), TypeExport(..), TModule(..), Symbols) import Unsafe.Coerce import System.Console.SimpleReadline -import Compat import MicroHs.Instances(compiledWithGHC) -type IState = (String, Flags, Cache) +data IState = IState { + isLines :: String, + isFlags :: Flags, + isCache :: Cache, + isSymbols :: Symbols + } type I a = StateIO IState a mainInteractive :: Flags -> IO () mainInteractive flags = do --- when (not usingMhs) $ --- error "Interactive mhs not available when compiled with ghc" putStrLn "Welcome to interactive MicroHs!" let flags' = flags{ loading = True } cash <- getCached flags' - _ <- runStateIO start (preamble, flags', cash) + _ <- runStateIO start $ IState preamble flags' cash noSymbols return () +noSymbols :: Symbols +noSymbols = (stEmpty, stEmpty) + preamble :: String preamble = "module " ++ interactiveName ++ "(module " ++ interactiveName ++ - ") where\nimport Prelude\nimport System.IO.PrintOrRun\ndefault (Integer, Double, String)\n" + ") where\nimport Prelude\nimport System.IO.PrintOrRun\ndefault (Integer, Double, String, ())\n" start :: I () start = do reload + is <- get + liftIO $ maybeSaveCache (isFlags is) (isCache is) liftIO $ putStrLn "Type ':quit' to quit, ':help' for help" when compiledWithGHC $ liftIO $ putStrLn "WARNING: Compiled with GHC, so limited functionality." @@ -47,7 +54,8 @@ repl :: I () repl = do - ms <- liftIO $ getInputLineHist ".mhsi" "> " + syms <- gets isSymbols + ms <- liftIO $ getInputLineHistComp (return . complete syms) ".mhsi" "> " case ms of Nothing -> repl Just s -> @@ -80,13 +88,14 @@ [ ("quit", const $ return False) , ("clear", const $ do updateLines (const preamble) - modify $ \ (ls, flgs, _) -> (ls, flgs, emptyCache) + modify $ \ is -> is{ isCache = emptyCache, isSymbols = noSymbols } return True ) , ("reload", const $ do - (ls, flgs, cash) <- get + flgs <- gets isFlags + cash <- gets isCache cash' <- liftIO $ validateCache flgs cash - put (ls, flgs, cash') + modify $ \ is -> is{ isCache = cash' } reload return True ) @@ -110,7 +119,7 @@ reload :: I () reload = do - (ls, _, _) <- get + ls <- gets isLines rld <- tryCompile ls -- reload modules right away case rld of Left msg -> liftIO $ err msg @@ -131,11 +140,14 @@ \" updateLines :: (String -> String) -> I () -updateLines f = modify $ \ (ls, flgs, cash) -> (f ls, flgs, cash) +updateLines f = modify $ \ is -> is{ isLines = f (isLines is) } updateCache :: (Cache -> Cache) -> I () -updateCache f = modify $ \ (ls, flgs, cash) -> (ls, flgs, f cash) +updateCache f = modify $ \ is -> is{ isCache = f (isCache is) } +setSyms :: Symbols -> I () +setSyms syms = modify $ \ is -> is{ isSymbols = syms } + interactiveName :: String interactiveName = "Interactive" @@ -164,15 +176,15 @@ mkTypeIt l = "type " ++ itTypeName ++ " = " ++ l ++ "\n" -err :: Exn -> IO () -err e = err' $ exnToString e +err :: SomeException -> IO () +err e = err' $ displayException e err' :: String -> IO () -err' s = putStrLn $ "Error: " ++ s +err' s = putStrLn $ "Exception: " ++ s oneline :: String -> I () oneline line = do - (ls, _, _) <- get + ls <- gets isLines let lls = ls ++ line ++ "\n" def = do defTest <- tryCompile lls @@ -196,16 +208,18 @@ Right _ -> ok Left e -> bad e -tryCompile :: String -> I (Either Exn [LDef]) +tryCompile :: String -> I (Either SomeException [LDef]) tryCompile file = do updateCache (deleteFromCache interactiveId) - (_, flgs, cash) <- get + flgs <- gets isFlags + cash <- gets isCache liftIO $ writeFile (interactiveName ++ ".hs") file res <- liftIO $ try $ compileCacheTop flgs interactiveId cash case res of Left e -> return (Left e) - Right ((_, m), cash') -> do + Right ((_, m), syms, cash') -> do updateCache (const cash') + setSyms syms return (Right m) evalExpr :: [LDef] -> I () @@ -224,11 +238,11 @@ showType :: String -> I () showType line = do - (ls, _, _) <- get + ls <- gets isLines res <- tryCompile (ls ++ "\n" ++ mkIt line) case res of Right _ -> do - (_, _, cash) <- get + cash <- gets isCache let t = getTypeInCache cash (mkIdent itName) liftIO $ putStrLn $ showEType t Left e -> @@ -236,30 +250,50 @@ showKind :: String -> I () showKind line = do - (ls, _, _) <- get + ls <- gets isLines res <- tryCompile (ls ++ "\n" ++ mkTypeIt line) case res of Right _ -> do - (_, _, cash) <- get + cash <- gets isCache let t = getKindInCache cash (mkIdent itTypeName) liftIO $ putStrLn $ showEType t Left e -> liftIO $ err e -getCModule :: Cache -> CModule +getCModule :: Cache -> TModule [LDef] getCModule cash = - case M.lookup interactiveId (cache cash) of + case lookupCache interactiveId cash of Nothing -> undefined -- this cannot happen Just cm -> cm getTypeInCache :: Cache -> Ident -> EType getTypeInCache cash i = - case tModuleOf (getCModule cash) of + case getCModule cash of TModule _ _ _ _ _ _ vals _ -> head $ [ t | ValueExport i' (Entry _ t) <- vals, i == i' ] ++ [undefined] getKindInCache :: Cache -> Ident -> EType getKindInCache cash i = - case tModuleOf (getCModule cash) of + case getCModule cash of TModule _ _ tys _ _ _ _ _ -> head $ [ k | TypeExport i' (Entry _ k) _ <- tys, i == i' ] ++ [undefined] + +-- This could be smarter: +-- ":a" should complete with commands +-- "import A" should complete with modules +-- operator completion +-- completion with qualified names + +complete :: Symbols -> (String, String) -> [String] +complete (tys, vals) (rpre, _post) = + let pre = reverse $ takeWhile isIdentChar rpre + allSyms = map unIdent $ stKeysGlbU tys ++ stKeysGlbU vals + allStrs = allSyms ++ keywords + real = notElem '$' + in case filter real $ catMaybes $ map (stripPrefix pre) allStrs of + [] -> [] + [s] -> [s ++ " "] + ss -> + case findCommonPrefix ss of + [] -> ss + p -> [p] diff --git a/src/MicroHs/Lex.hs b/src/MicroHs/Lex.hs --- a/src/MicroHs/Lex.hs +++ b/src/MicroHs/Lex.hs @@ -2,14 +2,13 @@ Token(..), showToken, tokensLoc, LexState, lexTopLS, - popLayout, + popLayout, lex ) where import Prelude hiding(lex) import Data.Char import Data.List import MicroHs.Ident import Text.ParserComb(TokenMachine(..)) -import Compat data Token = TIdent SLoc [String] String -- identifier @@ -26,6 +25,7 @@ | TError SLoc String -- lexical error | TBrace SLoc -- {n} in the Haskell report | TIndent SLoc -- in the Haskell report + | TPragma SLoc String -- a {-# PRAGMA #-} | TEnd | TRaw [Token] deriving (Show) @@ -42,6 +42,7 @@ showToken (TError _ s) = s showToken (TBrace _) = "TBrace" showToken (TIndent _) = "TIndent" +showToken (TPragma _ s) = "{-# " ++ s ++ " #-}" showToken TEnd = "EOF" showToken (TRaw _) = "TRaw" @@ -68,7 +69,7 @@ lex loc ('\n':cs) = tIndent (lex (incrLine loc) cs) lex loc ('\r':cs) = lex loc cs lex loc ('\t':cs) = lex (tabCol loc) cs -- TABs are a dubious feature, but easy to support -lex loc ('{':'-':cs) = skipNest (addCol loc 2) 1 cs +lex loc ('{':'-':cs) = nested (addCol loc 2) cs lex loc ('-':'-':cs) | isComm rs = skipLine (addCol loc $ 2+length ds) cs where (ds, rs) = span (== '-') cs @@ -79,6 +80,8 @@ (ds, rs) -> tIdent loc [] (d:ds) (lex (addCol loc $ 1 + length ds) rs) lex loc cs@(d:_) | isUpper d = upperIdent loc loc [] cs lex loc ('0':x:cs) | toLower x == 'x' = hexNumber loc cs + | toLower x == 'o' = octNumber loc cs + | toLower x == 'b' = binNumber loc cs lex loc cs@(d:_) | isDigit d = number loc cs lex loc ('.':cs@(d:_)) | isLower_ d = TSpec loc '.' : lex (addCol loc 1) cs @@ -99,11 +102,26 @@ lex loc (d:_) = [TError loc $ "Unrecognized input: " ++ show d] lex _ [] = [] +nested :: SLoc -> [Char] -> [Token] +nested loc ('#':cs) = pragma loc cs +nested loc cs = skipNest loc 1 cs + hexNumber :: SLoc -> String -> [Token] hexNumber loc cs = case span isHexDigit cs of - (ds, rs) -> TInt loc (readHex ds) : lex (addCol loc $ length ds + 2) rs + (ds, rs) -> TInt loc (readBase 16 ds) : lex (addCol loc $ length ds + 2) rs +octNumber :: SLoc -> String -> [Token] +octNumber loc cs = + case span isOctDigit cs of + (ds, rs) -> TInt loc (readBase 8 ds) : lex (addCol loc $ length ds + 2) rs + +binNumber :: SLoc -> String -> [Token] +binNumber loc cs = + case span isBinDigit cs of + (ds, rs) -> TInt loc (readBase 2 ds) : lex (addCol loc $ length ds + 2) rs + where isBinDigit c = c == '0' || c == '1' + number :: SLoc -> String -> [Token] number loc cs = case span isDigit cs of @@ -244,11 +262,21 @@ tokensLoc (TError loc _ :_) = loc tokensLoc (TBrace loc :_) = loc tokensLoc (TIndent loc :_) = loc +tokensLoc (TPragma loc _ :_) = loc tokensLoc _ = mkLocEOF -readHex :: String -> Integer -readHex = foldl (\ r c -> r * 16 + toInteger (digitToInt c)) 0 +readBase :: Integer -> String -> Integer +readBase b = foldl (\ r c -> r * b + toInteger (digitToInt c)) 0 +-- XXX This is a pretty hacky recognition of pragmas. +pragma :: SLoc -> [Char] -> [Token] +pragma loc cs = + let as = map toUpper $ takeWhile isAlpha $ dropWhile isSpace cs + skip = skipNest loc 1 ('#':cs) + in case as of + "SOURCE" -> TPragma loc as : skip + _ -> skip + -- | This is the magical layout resolver, straight from the Haskell report. -- https://www.haskell.org/onlinereport/haskell2010/haskellch10.html#x17-17800010.3 -- The first argument to layoutLS is the input token stream. @@ -308,3 +336,30 @@ lexTopLS :: FilePath -> String -> LexState lexTopLS f s = LS $ layoutLS (lexStart $ lex (SLoc f 1 1) s) [] + +----------- + +-- Convert string in scientific notation to a rational number. +readRational :: String -> Rational +readRational "" = undefined +readRational acs@(sgn:as) | sgn == '-' = negate $ rat1 as + | otherwise = rat1 acs + where + rat1 s1 = + case span isDigit s1 of + (ds1, cr1) | ('.':r1) <- cr1 -> rat2 f1 r1 + | (c:r1) <- cr1, toLower c == 'e' -> rat3 f1 r1 + | otherwise -> f1 + where f1 = toRational (read ds1 :: Integer) + + rat2 f1 s2 = + case span isDigit s2 of + (ds2, cr2) | (c:r2) <- cr2, toLower c == 'e' -> rat3 f2 r2 + | otherwise -> f2 + where f2 = f1 + toRational (read ds2 :: Integer) * 10 ^^ (negate $ length ds2) + + rat3 f2 ('+':s) = f2 * expo s + rat3 f2 ('-':s) = f2 / expo s + rat3 f2 s = f2 * expo s + + expo s = 10 ^ (read s :: Int) diff --git a/src/MicroHs/List.hs b/src/MicroHs/List.hs new file mode 100644 --- /dev/null +++ b/src/MicroHs/List.hs @@ -0,0 +1,70 @@ +-- Copyright 2023 Lennart Augustsson +-- See LICENSE file for full license. +module MicroHs.List where +import Data.List + +-- Various useful list functions. +-- These are not really MicroHs specific. + +------- List -------- + +elemBy :: (a -> a -> Bool) -> a -> [a] -> Bool +elemBy eq a = any (eq a) + +-- A simple "quicksort" for now. +sortLE :: forall a . (a -> a -> Bool) -> [a] -> [a] +sortLE _ [] = [] +sortLE le (x:xs) = sortLE le lt ++ (x : sortLE le ge) + where (ge, lt) = partition (le x) xs + +showListS :: (a -> String) -> [a] -> String +showListS sa arg = + let + showRest as = + case as of + [] -> "]" + x : xs -> "," ++ sa x ++ showRest xs + in + case arg of + [] -> "[]" + a : as -> "[" ++ sa a ++ showRest as + +anySame :: (Eq a) => [a] -> Bool +anySame = anySameBy (==) + +anySameBy :: (a -> a -> Bool) -> [a] -> Bool +anySameBy _ [] = False +anySameBy eq (x:xs) = elemBy eq x xs || anySameBy eq xs + +deleteAllBy :: forall a . (a -> a -> Bool) -> a -> [a] -> [a] +deleteAllBy _ _ [] = [] +deleteAllBy eq x (y:ys) = if eq x y then deleteAllBy eq x ys else y : deleteAllBy eq x ys + +deleteAllsBy :: forall a . (a -> a -> Bool) -> [a] -> [a] -> [a] +deleteAllsBy eq = foldl (flip (deleteAllBy eq)) + +padLeft :: Int -> String -> String +padLeft n s = replicate (n - length s) ' ' ++ s + +partitionM :: Monad m => (a -> m Bool) -> [a] -> m ([a], [a]) +partitionM _ [] = return ([], []) +partitionM p (x:xs) = do + b <- p x + (ts,fs) <- partitionM p xs + return $ if b then (x:ts, fs) else (ts, x:fs) + +substString :: forall a . Eq a => [a] -> [a] -> [a] -> [a] +substString _ _ [] = [] +substString from to xs@(c:cs) | Just rs <- stripPrefix from xs = to ++ substString from to rs + | otherwise = c : substString from to cs + +showPairS :: forall a b . (a -> String) -> (b -> String) -> (a, b) -> String +showPairS sa sb (a, b) = "(" ++ sa a ++ "," ++ sb b ++ ")" + +findCommonPrefix :: Eq a => [[a]] -> [a] +findCommonPrefix [] = [] +findCommonPrefix ([] : _) = [] +findCommonPrefix ((x:xs) : ys) | Just ys' <- mapM (f x) ys = x : findCommonPrefix (xs:ys') + | otherwise = [] + where f a (b:bs) | a == b = Just bs + f _ _ = Nothing diff --git a/src/MicroHs/Main.hs b/src/MicroHs/Main.hs --- a/src/MicroHs/Main.hs +++ b/src/MicroHs/Main.hs @@ -3,10 +3,13 @@ {-# OPTIONS_GHC -Wno-unused-do-bind -Wno-unused-imports #-} module MicroHs.Main(main) where import Prelude +import Data.Char import Data.List import Control.DeepSeq import Control.Monad +import Control.Applicative import Data.Maybe +import Data.Version import System.Environment import MicroHs.Compile import MicroHs.CompileCache @@ -14,41 +17,59 @@ import MicroHs.FFI import MicroHs.Flags import MicroHs.Ident +import MicroHs.List +import MicroHs.Package import MicroHs.Translate +import MicroHs.TypeCheck(tModuleName) import MicroHs.Interactive import MicroHs.MakeCArray +import System.Cmd +import System.Exit import System.Directory import System.IO -import System.Process +import System.IO.Serialize +import System.IO.TimeMilli import Compat import MicroHs.Instances(getMhsDir) -- for GHC +import MicroHs.TargetConfig mhsVersion :: String -mhsVersion = "0.9.8.0" +mhsVersion = "0.9.11.0" main :: IO () main = do args <- getArgs dir <- fromMaybe "." <$> getMhsDir - if take 1 args == ["--version"] then - putStrLn $ "MicroHs, version " ++ mhsVersion ++ ", combinator file version " ++ combVersion - else do - let (flags, mdls, rargs) = decodeArgs (defaultFlags dir) [] args - withArgs rargs $ -- leave arguments after -- for any program we run - case mdls of - [] -> mainInteractive flags - [s] -> mainCompile flags (mkIdentSLoc (SLoc "command-line" 0 0) s) - _ -> error usage + home <- getHomeDirectory + case args of + ["--version"] -> putStrLn $ "MicroHs, version " ++ mhsVersion ++ ", combinator file version " ++ combVersion + ["--numeric-version"] -> putStrLn mhsVersion + _ -> do + let dflags = (defaultFlags dir){ pkgPath = [home ++ "/.mcabal/mhs-" ++ mhsVersion] } + (flags, mdls, rargs) = decodeArgs dflags [] args + case listPkg flags of + Just p -> mainListPkg flags p + Nothing -> + case buildPkg flags of + Just p -> mainBuildPkg flags p mdls + Nothing -> + if installPkg flags then mainInstallPackage flags mdls else + withArgs rargs $ + case mdls of + [] -> mainInteractive flags + [s] -> mainCompile flags (mkIdentSLoc (SLoc "command-line" 0 0) s) + _ -> error usage usage :: String -usage = "Usage: mhs [--version] [-v] [-l] [-r] [-C[R|W]] [-XCPP] [-Ddef] [-T] [-z] [-iPATH] [-oFILE] [ModuleName]" +usage = "Usage: mhs [--version] [--numeric-version] [-v] [-q] [-l] [-r] [-C[R|W]] [-XCPP] [-Ddef] [-T] [-z] [-iPATH] [-oFILE] [-a[PATH]] [-LPATH] [-PPKG] [-Q PKG] [-tTARGET] [ModuleName...]" decodeArgs :: Flags -> [String] -> [String] -> (Flags, [String], [String]) decodeArgs f mdls [] = (f, mdls, []) decodeArgs f mdls (arg:args) = case arg of - "--" -> (f, mdls, args) + "--" -> (f, mdls, args) -- leave arguments after -- for any program we run "-v" -> decodeArgs f{verbose = verbose f + 1} mdls args + "-q" -> decodeArgs f{verbose = -1} mdls args "-r" -> decodeArgs f{runIt = True} mdls args "-l" -> decodeArgs f{loading = True} mdls args "-CR" -> decodeArgs f{readCache = True} mdls args @@ -57,26 +78,103 @@ "-T" -> decodeArgs f{useTicks = True} mdls args "-XCPP" -> decodeArgs f{doCPP = True} mdls args "-z" -> decodeArgs f{compress = True} mdls args + "-Q" -> decodeArgs f{installPkg = True} mdls args + '-':'i':[] -> decodeArgs f{paths = []} mdls args '-':'i':s -> decodeArgs f{paths = paths f ++ [s]} mdls args '-':'o':s -> decodeArgs f{output = s} mdls args - '-':'D':s -> decodeArgs f{cppArgs = cppArgs f ++ [s]} mdls args + '-':'t':s -> decodeArgs f{target = s} mdls args + '-':'D':_ -> decodeArgs f{cppArgs = cppArgs f ++ [arg]} mdls args + '-':'I':_ -> decodeArgs f{cppArgs = cppArgs f ++ [arg]} mdls args + '-':'P':s -> decodeArgs f{buildPkg = Just s} mdls args + '-':'a':[] -> decodeArgs f{pkgPath = []} mdls args + '-':'a':s -> decodeArgs f{pkgPath = s : pkgPath f} mdls args + '-':'L':s -> decodeArgs f{listPkg = Just s} mdls args '-':_ -> error $ "Unknown flag: " ++ arg ++ "\n" ++ usage _ -> decodeArgs f (mdls ++ [arg]) args + +readTargets :: Flags -> FilePath -> IO [Target] +readTargets flags dir = do + let tgFilePath = dir ++ "/targets.conf" + exists <- doesFileExist tgFilePath + if not exists + then return [] + else do + tgFile <- readFile tgFilePath + case parseTargets tgFilePath tgFile of + Left e -> do + putStrLn $ "Can't read " ++ tgFilePath + when (verbose flags > 0) $ + putStrLn e + return [] + Right tgs -> do + when (verbose flags > 0) $ + putStrLn $ "Read targets file. Possible targets: " ++ show + [tg | Target tg _ <- tgs] + return tgs + +readTarget :: Flags -> FilePath -> IO TTarget +readTarget flags dir = do + targets <- readTargets flags dir + compiler <- lookupEnv "CC" + conf <- lookupEnv "MHSCONF" + let dConf = "unix-" ++ show _wordSize + case findTarget (target flags) targets of + Nothing -> do + when (verbose flags > 0) $ + putStrLn $ unwords ["Could not find", target flags, "in file"] + return TTarget { tName = "default" + , tCC = fromMaybe "cc" compiler + , tConf = fromMaybe dConf conf + } + Just (Target n cs) -> do + when (verbose flags > 0) $ + putStrLn $ "Found target: " ++ show cs + return TTarget { tName = n + , tCC = fromMaybe "cc" $ compiler <|> lookup "cc" cs + , tConf = fromMaybe dConf $ conf <|> lookup "conf" cs + } + + +mainBuildPkg :: Flags -> String -> [String] -> IO () +mainBuildPkg flags namever amns = do + when (verbose flags > 0) $ + putStrLn $ "Building package " ++ namever + let mns = map mkIdent amns + cash <- compileMany flags mns emptyCache + let mdls = getCompMdls cash + (name, ver) = splitNameVer namever + (exported, other) = partition ((`elem` mns) . tModuleName) mdls + pkgDeps = map (\ p -> (pkgName p, pkgVersion p)) $ getPkgs cash + pkg = Package { pkgName = mkIdent name, pkgVersion = ver + , pkgExported = exported, pkgOther = other + , pkgDepends = pkgDeps } + --print (map tModuleName $ pkgOther pkg) + when (verbose flags > 0) $ + putStrLn $ "Writing package " ++ namever ++ " to " ++ output flags + writeSerializedCompressed (output flags) pkg + +splitNameVer :: String -> (String, Version) +splitNameVer s = + case span (\ c -> isDigit c || c == '.') (reverse s) of + (rver, '-':rname) | is@(_:_) <- readVersion (reverse rver) -> (reverse rname, makeVersion is) + _ -> error $ "package name not of the form name-version:" ++ show s + where readVersion = map read . words . map (\ c -> if c == '.' then ' ' else c) + +mainListPkg :: Flags -> FilePath -> IO () +mainListPkg _flags pkgfn = do + pkg <- readSerialized pkgfn + let list = mapM_ (putStrLn . showIdent . tModuleName) + list (pkgExported pkg) + list (pkgOther pkg) + mainCompile :: Flags -> Ident -> IO () mainCompile flags mn = do - (rmn, allDefs) <- - if writeCache flags then do - cash <- getCached flags - (rds, cash') <- compileCacheTop flags mn cash - when (verbosityGT flags 0) $ - putStrLn $ "Saving cache " ++ show mhsCacheName - () <- seq (rnfNoErr cash) (return ()) - saveCache mhsCacheName cash' - return rds - else do - cash <- getCached flags - fst <$> compileCacheTop flags mn cash + (rmn, allDefs) <- do + cash <- getCached flags + (rds, _, cash') <- compileCacheTop flags mn cash + maybeSaveCache flags cash' + return rds t1 <- getTimeMilli let @@ -86,7 +184,7 @@ numDefs = length allDefs when (verbosityGT flags 0) $ putStrLn $ "top level defns: " ++ show numDefs - when (verbosityGT flags 1) $ + when (verbosityGT flags 2) $ mapM_ (\ (i, e) -> putStrLn $ showIdent i ++ " = " ++ toStringP e "") allDefs if runIt flags then do let @@ -118,15 +216,36 @@ hClose h ct1 <- getTimeMilli mcc <- lookupEnv "MHSCC" - compiler <- fromMaybe "cc" <$> lookupEnv "CC" let dir = mhsdir flags - conf = "unix-" ++ show _wordSize - cc = fromMaybe (compiler ++ " -w -Wall -O3 -I" ++ dir ++ "/src/runtime " ++ dir ++ "/src/runtime/eval-" ++ conf ++ ".c " ++ " $IN -lm -o $OUT") mcc + TTarget _ compiler conf <- readTarget flags dir + let cc = fromMaybe (compiler ++ " -w -Wall -O3 -I" ++ dir ++ "/src/runtime " ++ dir ++ "/src/runtime/eval-" ++ conf ++ ".c " ++ " $IN -lm -o $OUT") mcc cmd = substString "$IN" fn $ substString "$OUT" outFile cc when (verbosityGT flags 0) $ putStrLn $ "Execute: " ++ show cmd - callCommand cmd + ec <- system cmd removeFile fn + when (ec /= ExitSuccess) $ + error $ "command failed: " ++ cmd ct2 <- getTimeMilli when (verbosityGT flags 0) $ putStrLn $ "C compilation " ++ padLeft 6 (show (ct2-ct1)) ++ "ms" + +mainInstallPackage :: Flags -> [FilePath] -> IO () +mainInstallPackage flags [pkgfn, dir] = do + when (verbosityGT flags (-1)) $ + putStrLn $ "Installing package " ++ pkgfn ++ " in " ++ dir + pkg <- readSerialized pkgfn + let pdir = dir ++ "/" ++ packageDir + pkgout = unIdent (pkgName pkg) ++ "-" ++ showVersion (pkgVersion pkg) ++ packageSuffix + createDirectoryIfMissing True pdir + copyFile pkgfn (pdir ++ "/" ++ pkgout) + let mk tm = do + let fn = dir ++ "/" ++ moduleToFile (tModuleName tm) ++ packageTxtSuffix + d = dropWhileEnd (/= '/') fn + when (verbosityGT flags 2) $ + putStrLn $ "create " ++ fn + createDirectoryIfMissing True d + writeFile fn pkgout + mapM_ mk (pkgExported pkg) +mainInstallPackage flags [pkgfn] = mainInstallPackage flags [pkgfn, head (pkgPath flags)] +mainInstallPackage _ _ = error usage diff --git a/src/MicroHs/Package.hs b/src/MicroHs/Package.hs new file mode 100644 --- /dev/null +++ b/src/MicroHs/Package.hs @@ -0,0 +1,34 @@ +module MicroHs.Package( + IdentPackage, + Package(..), + ) where +import Data.Version +import MicroHs.Desugar(LDef) +import MicroHs.Ident(Ident) +import MicroHs.TypeCheck(TModule) + +-- +-- Packages are organized as follows: +-- There is a package search path (default is ~/.mcabal/mhs-VERSION/) +-- In this directory there is a subdirectory, packages, that contains a +-- serialized Package for each installed package. +-- There is also a file for each exported module that contains just +-- the package name. +-- So if we have a package foo, exporting modules Foo.Bar and Foo.baz +-- we would have the following directory structure +-- packages/foo.pkg +-- Foo/Bar.txt +-- Foo/Baz.txt +-- The files Foo/Bar.txt and Foo/Baz.txt will contain simply "foo". +-- + +type IdentPackage = Ident + +data Package = Package { + pkgName :: IdentPackage, -- package name + pkgVersion :: Version, -- package version + pkgExported :: [TModule [LDef]], -- exported modules + pkgOther :: [TModule [LDef]], -- non-exported modules + pkgDepends :: [(IdentPackage, Version)] -- used packages + } + -- deriving (Show) diff --git a/src/MicroHs/Parse.hs b/src/MicroHs/Parse.hs --- a/src/MicroHs/Parse.hs +++ b/src/MicroHs/Parse.hs @@ -1,7 +1,7 @@ -- Copyright 2023 Lennart Augustsson -- See LICENSE file for full license. {-# OPTIONS_GHC -Wno-incomplete-uni-patterns -Wno-unused-do-bind #-} -module MicroHs.Parse(P, pTop, pTopModule, parseDie, parse, pExprTop) where +module MicroHs.Parse(P, pTop, pTopModule, parseDie, parse, pExprTop, keywords) where import Prelude import Control.Applicative import Control.Monad @@ -10,6 +10,7 @@ import Text.ParserComb as P import MicroHs.Lex import MicroHs.Expr hiding (getSLoc) +import qualified MicroHs.Expr as E import MicroHs.Ident --import Debug.Trace @@ -260,10 +261,12 @@ pExportItem :: P ExportItem pExportItem = - ExpModule <$> (pKeyword "module" *> pUQIdent) - <|< ExpTypeCon <$> (pUQIdentSym <* pSpec '(' <* pConList <* pSpec ')') - <|< ExpType <$> pUQIdentSym - <|< ExpValue <$> pLQIdentSym + ExpModule <$> (pKeyword "module" *> pUQIdent) + <|< expType <$> pUQIdentSym <*> (pSpec '(' *> pConList <* pSpec ')') + <|< ExpTypeSome <$> pUQIdentSym <*> pure [] + <|< ExpValue <$> pLQIdentSym + where expType i Nothing = ExpTypeAll i + expType i (Just is) = ExpTypeSome i is pKeyword :: String -> P () pKeyword kw = () <$ satisfy kw is @@ -271,6 +274,12 @@ is (TIdent _ [] s) = kw == s is _ = False +pPragma :: String -> P () +pPragma kw = () <$ satisfy kw is + where + is (TPragma _ s) = kw == s + is _ = False + pBraces :: forall a . P a -> P a pBraces p = do @@ -300,19 +309,18 @@ pDef :: P EDef pDef = - Data <$> (pKeyword "data" *> pLHS) <*> ((pSymbol "=" *> esepBy1 pConstr (pSymbol "|")) - <|< pure []) <*> pDeriving - <|< Newtype <$> (pKeyword "newtype" *> pLHS) <*> (pSymbol "=" *> (Constr [] [] <$> pUIdentSym <*> pField)) <*> pDeriving - <|< Type <$> (pKeyword "type" *> pLHS) <*> (pSymbol "=" *> pType) - <|< uncurry Fcn <$> pEqns - <|< Sign <$> ((esepBy1 pLIdentSym (pSpec ',')) <* dcolon) <*> pType - <|< Import <$> (pKeyword "import" *> pImportSpec) - <|< ForImp <$> (pKeyword "foreign" *> pKeyword "import" *> pKeyword "ccall" *> eoptional pString) <*> pLIdent <*> (pSymbol "::" *> pType) - <|< Infix <$> ((,) <$> pAssoc <*> pPrec) <*> esepBy1 pTypeOper (pSpec ',') - <|< Class <$> (pKeyword "class" *> pContext) <*> pLHS <*> pFunDeps <*> pWhere pClsBind - <|< Instance <$> (pKeyword "instance" *> pType) <*> pWhere pClsBind - <|< Default <$> (pKeyword "default" *> pParens (esepBy pType (pSpec ','))) - <|< KindSign <$> (pKeyword "type" *> pTypeIdentSym) <*> (pSymbol "::" *> pKind) + uncurry Data <$> (pKeyword "data" *> pData) <*> pDeriving + <|< Newtype <$> (pKeyword "newtype" *> pLHS) <*> (pSymbol "=" *> (Constr [] [] <$> pUIdentSym <*> pField)) <*> pDeriving + <|< Type <$> (pKeyword "type" *> pLHS) <*> (pSymbol "=" *> pType) + <|< uncurry Fcn <$> pEqns + <|< Sign <$> ((esepBy1 pLIdentSym (pSpec ',')) <* dcolon) <*> pType + <|< Import <$> (pKeyword "import" *> pImportSpec) + <|< ForImp <$> (pKeyword "foreign" *> pKeyword "import" *> pKeyword "ccall" *> eoptional pString) <*> pLIdent <*> (pSymbol "::" *> pType) + <|< Infix <$> ((,) <$> pAssoc <*> pPrec) <*> esepBy1 pTypeOper (pSpec ',') + <|< Class <$> (pKeyword "class" *> pContext) <*> pLHS <*> pFunDeps <*> pWhere pClsBind + <|< Instance <$> (pKeyword "instance" *> pType) <*> pWhere pClsBind + <|< Default <$> (pKeyword "default" *> pParens (esepBy pType (pSpec ','))) + <|< KindSign <$> (pKeyword "type" *> pTypeIdentSym) <*> (pSymbol "::" *> pKind) where pAssoc = (AssocLeft <$ pKeyword "infixl") <|< (AssocRight <$ pKeyword "infixr") <|< (AssocNone <$ pKeyword "infix") dig (TInt _ ii) | 0 <= i && i <= 9 = Just i where i = fromInteger ii @@ -327,6 +335,41 @@ pure fs dcolon = pSymbol "::" <|< pSymbol "\x2237" +pData :: P (LHS, [Constr]) +pData = do + lhs <- pLHS + let pConstrs = pSymbol "=" *> esepBy1 pConstr (pSymbol "|") + ((,) lhs <$> pConstrs) + <|< pGADT lhs + <|< pure (lhs, []) + +pGADT :: LHS -> P (LHS, [Constr]) +pGADT (n, vks) = do + let f (IdKind i k) = IdKind (addIdentSuffix i "$") k + lhs = (n, map f vks) + pKeyword "where" + gs <- pBlock pGADTconstr + pure (lhs, map (dsGADT lhs) gs) + +pGADTconstr :: P (Ident, [IdKind], [EConstraint], [SType], EType) +pGADTconstr = do + cn <- pUIdentSym + pSymbol "::" + es <- pForall + ctx <- pContext + args <- emany (pSTypeApp <* pSymbol "->") + res <- pType + pure (cn, es, ctx, args, res) + +dsGADT :: LHS -> (Ident, [IdKind], [EConstraint], [SType], EType) -> Constr +dsGADT (tnm, vks) (cnm, es, ctx, stys, rty) = + case getAppM rty of + Just (tnm', ts) | tnm == tnm' && length vks == length ts -> Constr es' ctx' cnm (Left stys) + where es' = if null es then map (\ i -> IdKind i (EVar dummyIdent)) (freeTyVars (rty : map snd stys)) else es + ctx' = zipWith (\ (IdKind i _) t -> eq (EVar i) t) vks ts ++ ctx + eq t1 t2 = EApp (EApp (EVar (mkIdentSLoc (E.getSLoc t1) "~")) t1) t2 + _ -> errorMessage (E.getSLoc rty) $ "Bad GADT result type" ++ show (rty, tnm, vks) + pDeriving :: P [EConstraint] pDeriving = pKeyword "deriving" *> pDer <|< pure [] where pDer = pParens (esepBy pType (pSpec ',')) @@ -360,6 +403,8 @@ pSAType = (,) <$> pStrict <*> pAType pSType :: P (Bool, EType) pSType = (,) <$> pStrict <*> pType +pSTypeApp :: P (Bool, EType) +pSTypeApp = (,) <$> pStrict <*> pTypeApp pStrict :: P Bool pStrict = (True <$ pSpec '!') <|< pure False @@ -371,17 +416,22 @@ pImportSpec = let pQua = (True <$ pKeyword "qualified") <|< pure False - in ImportSpec <$> pQua <*> pUQIdentA <*> eoptional (pKeyword "as" *> pUQIdent) <*> + pSource = (ImpBoot <$ pPragma "SOURCE") <|< pure ImpNormal + in ImportSpec <$> pSource <*> pQua <*> pUQIdentA <*> eoptional (pKeyword "as" *> pUQIdent) <*> eoptional ((,) <$> ((True <$ pKeyword "hiding") <|> pure False) <*> pParens (esepEndBy pImportItem (pSpec ','))) pImportItem :: P ImportItem pImportItem = - ImpTypeCon <$> (pUQIdentSym <* pSpec '(' <* pConList <* pSpec ')') - <|< ImpType <$> pUQIdentSym - <|< ImpValue <$> pLQIdentSym + impType <$> pUQIdentSym <*> (pSpec '(' *> pConList <* pSpec ')') + <|< ImpTypeSome <$> pUQIdentSym <*> pure [] + <|< ImpValue <$> pLQIdentSym + where impType i Nothing = ImpTypeAll i + impType i (Just is) = ImpTypeSome i is -pConList :: P () -pConList = pSymbol ".." <|< (() <$ esepBy1 pQIdent (pSpec ',')) -- XXX treat list as .. +pConList :: P (Maybe [Ident]) +pConList = + (Nothing <$ pSymbol "..") + <|< (Just <$> esepBy1 (pQIdent <|> pParens pSymOper) (pSpec ',')) -------- -- Types @@ -576,7 +626,7 @@ pDo = EDo <$> ((Just <$> pQualDo) <|< (Nothing <$ pKeyword "do")) <*> pBlock pStmt pIf :: P Expr -pIf = EIf <$> (pKeyword "if" *> pExpr) <*> (pKeyword "then" *> pExpr) <*> (pKeyword "else" *> pExpr) +pIf = EIf <$> (pKeyword "if" *> pExpr) <*> (pKeyword "then" *> pExpr) <*> (eoptional (pSpec ';') *> pKeyword "else" *> pExpr) pQualDo :: P Ident pQualDo = do diff --git a/src/MicroHs/SymTab.hs b/src/MicroHs/SymTab.hs --- a/src/MicroHs/SymTab.hs +++ b/src/MicroHs/SymTab.hs @@ -1,12 +1,14 @@ module MicroHs.SymTab( Entry(..), entryType, SymTab, + stEmpty, stLookup, stFromList, stInsertGlbU, stInsertGlbQ, stElemsLcl, stKeysLcl, + stKeysGlbU, stInsertLcl, mapMSymTab, ) where @@ -14,8 +16,8 @@ import Data.List import MicroHs.Expr(Expr(..), EType, conIdent) import MicroHs.Ident(Ident, showIdent) +import MicroHs.List import qualified MicroHs.IdentMap as M -import Compat -- Symbol table -- @@ -72,6 +74,9 @@ qg' <- M.mapM (mapM f) qg return $ SymTab l' ug' qg' +stEmpty :: SymTab +stEmpty = SymTab [] M.empty M.empty + stLookup :: String -> Ident -> SymTab -> Either String Entry stLookup msg i (SymTab l ug qg) = case lookup i l of @@ -92,6 +97,9 @@ stKeysLcl :: SymTab -> [Ident] stKeysLcl (SymTab l _ _) = map fst l + +stKeysGlbU :: SymTab -> [Ident] +stKeysGlbU (SymTab _ m _) = M.keys m stInsertLcl :: Ident -> Entry -> SymTab -> SymTab stInsertLcl i a (SymTab l ug qg) = SymTab ((i, a) : l) ug qg diff --git a/src/MicroHs/TCMonad.hs b/src/MicroHs/TCMonad.hs --- a/src/MicroHs/TCMonad.hs +++ b/src/MicroHs/TCMonad.hs @@ -15,7 +15,6 @@ import MicroHs.Ident import qualified MicroHs.IdentMap as M import MicroHs.SymTab -import Compat ----------------------------------------------- -- TC @@ -206,33 +205,6 @@ getAppCon e = error $ "getAppCon: " ++ show e ----------------------------------------------- - -type TyVar = Ident - -freeTyVars :: [EType] -> [TyVar] --- Get the free TyVars from a type; no duplicates in result -freeTyVars = foldr (go []) [] - where - go :: [TyVar] -- Ignore occurrences of bound type variables - -> EType -- Type to look at - -> [TyVar] -- Accumulates result - -> [TyVar] - go bound (EVar tv) acc - | elem tv bound = acc - | elem tv acc = acc - | isConIdent tv = acc - | otherwise = tv : acc - go bound (EForall tvs ty) acc = go (map idKindIdent tvs ++ bound) ty acc - go bound (EApp fun arg) acc = go bound fun (go bound arg acc) - go _bound (EUVar _) acc = acc - go _bound (ECon _) acc = acc - go _bound (ELit _ _) acc = acc - go bound (EOper e ies) acc = go bound e (goList bound (map snd ies) acc) - go bound (ESign e _) acc = go bound e acc - go bound (EListish (LList [e])) acc = go bound e acc - go bound (ETuple es) acc = goList bound es acc - go _ x _ = error ("freeTyVars: " ++ show x) -- impossibleShow x - goList bound es acc = foldr (go bound) acc es addConstraints :: [EConstraint] -> EType -> EType addConstraints [] t = t diff --git a/src/MicroHs/TargetConfig.hs b/src/MicroHs/TargetConfig.hs new file mode 100644 --- /dev/null +++ b/src/MicroHs/TargetConfig.hs @@ -0,0 +1,116 @@ +{-# OPTIONS_GHC -Wno-orphans #-} +module MicroHs.TargetConfig( + Target(..) + , TTarget(..) + , parseTargets + , findTarget + ) where + +import Prelude hiding(lex) +import Control.Applicative +import Control.Monad +import Data.List +import Text.ParserComb +import MicroHs.Ident +import MicroHs.Lex + +{- File Format +[target_name] +key = "value" +... + +[next_target] +key = ... +-} + +data Target = Target String [(String,String)] + deriving Show + +data TTarget = TTarget + { tName :: String + , tCC :: String + , tConf :: String + } + +findTarget :: String -> [Target] -> Maybe Target +findTarget _ [] = Nothing +findTarget name ((Target n conf):ts) | n == name = Just $ Target n conf + | otherwise = findTarget name ts + + +-- Parser + +type Parser = Prsr [Token] Token + +instance TokenMachine [Token] Token where + tmNextToken [] = (TEnd, []) + tmNextToken (x:xs) = (x,xs) + + tmRawTokens = id + + +eof :: Parser () +eof = do + t <- nextToken + case t of + TEnd -> pure () + _ -> fail "eof" + +nl :: Parser [Token] +nl = many $ satisfy "\\n" isWhite + where isWhite (TIndent _) = True + isWhite _ = False + +spec :: Char -> Parser Token +spec c = satisfy (showToken $ TSpec (SLoc "" 0 0) c) is + where is (TSpec _ d) = c == d + is _ = False + +ident :: Parser String +ident = satisfyM "key" is + where is (TIdent _ _ x) = Just x + is _ = Nothing + +keyword :: String -> Parser () +keyword s = do + s' <- ident + guard (s == s') + pure () + +key :: Parser String +key = ident + +value :: Parser String +value = satisfyM "value" isValue + where isValue (TString _ x) = Just x + isValue _ = Nothing + +targetName :: Parser String +targetName = spec '[' *> key <* spec ']' + +keyValue :: Parser (String, String) +keyValue = (,) <$> key <*> (keyword "=" *> value) + +keyValues :: Parser [(String,String)] +keyValues = keyValue `esepBy` nl + +target :: Parser Target +target = Target <$> (targetName <* nl) <*> keyValues + +targets :: Parser [Target] +targets = (target `sepBy1` nl) <* nl <* eof + +formatFailed :: LastFail Token -> String +formatFailed (LastFail _ ts msgs) = + unlines [ showSLoc sloc ++ ":\n" + , " found: " ++ head (map showToken ts) + , " expected: " ++ unwords (nub msgs) + ] + where sloc = tokensLoc ts + +parseTargets :: FilePath -> String -> Either String [Target] +parseTargets fp file = + case runPrsr targets $ lex (SLoc fp 1 1) file of + Left lf -> Left $ formatFailed lf + Right [a] -> Right a + Right as -> Left $ "Ambiguous:" ++ unlines (map show as) diff --git a/src/MicroHs/Translate.hs b/src/MicroHs/Translate.hs --- a/src/MicroHs/Translate.hs +++ b/src/MicroHs/Translate.hs @@ -106,14 +106,11 @@ ("fread", primitive "fread"), ("itof", primitive "itof"), ("seq", primitive "seq"), - ("error", primitive "error"), ("sequal", primitive "sequal"), ("equal", primitive "equal"), ("scmp", primitive "scmp"), ("icmp", primitive "icmp"), ("rnf", primitive "rnf"), - ("noMatch", primitive "noMatch"), - ("noDefault", primitive "noDefault"), ("IO.>>=", primitive "IO.>>="), ("IO.>>", primitive "IO.>>"), ("IO.return", primitive "IO.return"), @@ -125,7 +122,9 @@ ("IO.stderr", primitive "IO.stderr"), ("IO.getArgRef", primitive "IO.getArgRef"), ("IO.performIO", primitive "IO.performIO"), - ("IO.catch", primitive "IO.catch"), + ("IO.gc", primitive "IO.gc"), + ("raise", primitive "raise"), + ("catch", primitive "catch"), ("dynsym", primitive "dynsym"), ("newCAStringLen", primitive "newCAStringLen"), ("peekCAString", primitive "peekCAString"), @@ -133,11 +132,7 @@ ("toInt", primitive "toInt"), ("toPtr", primitive "toPtr"), ("toDbl", primitive "toDbl"), - ("p==", primitive "p=="), - ("pnull", primitive "pnull"), - ("pcast", primitive "pcast"), - ("p+", primitive "p+"), - ("p-", primitive "p-"), + ("toFunPtr", primitive "toFunPtr"), ("A.alloc", primitive "A.alloc"), ("A.size", primitive "A.size"), ("A.read", primitive "A.read"), diff --git a/src/MicroHs/TypeCheck.hs b/src/MicroHs/TypeCheck.hs --- a/src/MicroHs/TypeCheck.hs +++ b/src/MicroHs/TypeCheck.hs @@ -9,9 +9,11 @@ mkClassConstructor, mkSuperSel, bindingsOf, + setBindings, boolPrefix, listPrefix, ValueExport(..), TypeExport(..), + Symbols, ) where import Prelude import Control.Applicative @@ -28,9 +30,9 @@ import MicroHs.Graph import MicroHs.Ident import qualified MicroHs.IdentMap as M +import MicroHs.List import MicroHs.SymTab import MicroHs.TCMonad -import Compat import GHC.Stack import Debug.Trace @@ -42,30 +44,48 @@ nameList :: String nameList = listPrefix ++ "[]" +identList :: Ident +identList = mkIdentB nameList nameInt :: String nameInt = "Primitives.Int" +identInt :: Ident +identInt = mkIdentB nameInt nameWord :: String nameWord = "Primitives.Word" +identWord :: Ident +identWord = mkIdentB nameWord nameFloatW :: String nameFloatW = "Primitives.FloatW" +identFloatW :: Ident +identFloatW = mkIdentB nameFloatW nameChar :: String nameChar = "Primitives.Char" +identChar :: Ident +identChar = mkIdentB nameChar nameInteger :: String nameInteger = "Data.Integer_Type.Integer" +identInteger :: Ident +identInteger = mkIdentB nameInteger nameTypeEq :: String nameTypeEq = "Primitives.~" +identTypeEq :: Ident +identTypeEq = mkIdentB nameTypeEq nameImplies :: String nameImplies = "Primitives.=>" +identImplies :: Ident +identImplies = mkIdentB nameImplies nameArrow :: String nameArrow = "Primitives.->" +identArrow :: Ident +identArrow = mkIdentB nameArrow nameSymbol :: String nameSymbol = "Primitives.Symbol" @@ -93,6 +113,8 @@ ---------------------- +type Symbols = (SymTab, SymTab) + data TModule a = TModule IdentModule -- module names [FixDef] -- all fixities, exported or not @@ -110,6 +132,9 @@ bindingsOf :: forall a . TModule a -> a bindingsOf (TModule _ _ _ _ _ _ _ a) = a +setBindings :: forall a . a -> TModule a -> TModule a +setBindings a (TModule x1 x2 x3 x4 x5 x6 x7 _) = TModule x1 x2 x3 x4 x5 x6 x7 a + data TypeExport = TypeExport Ident -- unqualified name Entry -- symbol table entry @@ -134,24 +159,26 @@ --type Tau = EType type Rho = EType -typeCheck :: forall a . [(ImportSpec, TModule a)] -> EModule -> TModule [EDef] -typeCheck aimps (EModule mn exps defs) = +typeCheck :: forall a . ImpType -> [(ImportSpec, TModule a)] -> EModule -> (TModule [EDef], Symbols) +typeCheck impt aimps (EModule mn exps defs) = -- trace (unlines $ map (showTModuleExps . snd) aimps) $ let imps = map filterImports aimps (fs, ts, ss, cs, is, vs, as) = mkTables imps - in case tcRun (tcDefs defs) (initTC mn fs ts ss cs is vs as) of + in case tcRun (tcDefs impt defs) (initTC mn fs ts ss cs is vs as) of (tds, tcs) -> let thisMdl = (mn, mkTModule tds tcs) - impMdls = [(fromMaybe m mm, tm) | (ImportSpec _ m mm _, tm) <- imps] + impMdls = [(fromMaybe m mm, tm) | (ImportSpec _ _ m mm _, tm) <- imps] impMap = M.fromList [(i, m) | (i, m) <- thisMdl : impMdls] (texps, cexps, vexps) = unzip3 $ map (getTVExps impMap (typeTable tcs) (valueTable tcs) (assocTable tcs) (classTable tcs)) exps fexps = [ fe | TModule _ fe _ _ _ _ _ _ <- M.elems impMap ] sexps = M.toList (synTable tcs) iexps = M.toList (instTable tcs) - in tModule mn (nubBy ((==) `on` fst) (concat fexps)) (concat texps) sexps (concat cexps) iexps (concat vexps) tds + in ( tModule mn (nubBy ((==) `on` fst) (concat fexps)) (concat texps) sexps (concat cexps) iexps (concat vexps) tds + , (typeTable tcs, valueTable tcs) + ) -- A hack to force evaluation of errors. -- This should be redone to all happen in the T monad. @@ -167,17 +194,26 @@ vseq (ValueExport _ e:xs) = e `seq` vseq xs filterImports :: forall a . (ImportSpec, TModule a) -> (ImportSpec, TModule a) -filterImports it@(ImportSpec _ _ _ Nothing, _) = it -filterImports (imp@(ImportSpec _ _ _ (Just (hide, is))), TModule mn fx ts ss cs ins vs a) = +filterImports it@(ImportSpec _ _ _ _ Nothing, _) = it +filterImports (imp@(ImportSpec _ _ _ _ (Just (hide, is))), TModule mn fx ts ss cs ins vs a) = let keep x xs = elem x xs /= hide ivs = [ i | ImpValue i <- is ] vs' = filter (\ (ValueExport i _) -> keep i ivs) vs - cts = [ i | ImpTypeCon i <- is ] - its = [ i | ImpType i <- is ] ++ cts - ts' = map (\ (TypeExport i e xvs) -> TypeExport i e $ filter (\ (ValueExport ii _) -> not hide || keep ii ivs) xvs) $ - map (\ te@(TypeExport i e _) -> if keep i cts then te else TypeExport i e []) $ - filter (\ (TypeExport i _ _) -> keep i its) ts +-- cts = [ i | ImpTypeAll i <- is ] ++ [ i | ImpTypeSome i (_:_) <- is ] -- XXX +-- its = [ i | ImpTypeSome i [] <- is ] ++ cts + aits = [ i | ImpTypeAll i <- is ] -- all T(..) imports + its = [ i | ImpTypeSome i _ <- is ] ++ aits + -- XXX This isn't quite right, hiding T() should hide T, but not the constructors + ts' = + if hide then + let ok xs (ValueExport i _) = i `notElem` ivs && i `notElem` xs in + [ TypeExport i e (filter (ok []) ves) | TypeExport i e ves <- ts, i `notElem` its ] ++ + [ TypeExport i e (filter (ok xs) ves) | TypeExport i e ves <- ts, ImpTypeSome i' xs <- is, i == i' ] + else + let ok xs (ValueExport i _) = i `elem` ivs || i `elem` xs in + [ TypeExport i e ves | TypeExport i e ves <- ts, i `elem` aits ] ++ + [ TypeExport i e (filter (ok xs) ves) | TypeExport i e ves <- ts, ImpTypeSome i' xs <- is, i == i' ] msg = "not exported" allVs = map (\ (ValueExport i _) -> i) vs ++ concatMap (\ (TypeExport _ _ xvs) -> map (\ (ValueExport i _) -> i) xvs) ts @@ -198,30 +234,28 @@ -- Type and value exports getTVExps :: forall a . M.Map (TModule a) -> TypeTable -> ValueTable -> AssocTable -> ClassTable -> ExportItem -> - ([TypeExport], [ClsDef], [ValueExport]) + ([TypeExport], [ClsDef], [ValueExport]) getTVExps impMap _ _ _ _ (ExpModule m) = case M.lookup m impMap of Just (TModule _ _ te _ ce _ ve _) -> (te, ce, ve) _ -> errorMessage (getSLoc m) $ "undefined module: " ++ showIdent m -getTVExps _ tys vals ast cls (ExpTypeCon i) = - let - e = expLookup i tys - qi = tyQIdent e - ves = getAssocs vals ast qi - cl = case M.lookup qi cls of - Just ci -> [(qi, ci)] - Nothing -> [] - in ([TypeExport i e ves], cl, []) -getTVExps _ tys _ _ cls (ExpType i) = +getTVExps _ tys vals ast cls (ExpTypeSome i is) = getTypeExp tys vals ast cls i (`elem` is) +getTVExps _ tys vals ast cls (ExpTypeAll i ) = getTypeExp tys vals ast cls i (const True) +getTVExps _ _ vals _ _ (ExpValue i) = + ([], [], [ValueExport i (expLookup i vals)]) + +-- Export a type, filter exported values by p. +getTypeExp :: TypeTable -> ValueTable -> AssocTable -> ClassTable -> Ident -> (Ident -> Bool) -> + ([TypeExport], [ClsDef], [ValueExport]) +getTypeExp tys vals ast cls ti p = let - e = expLookup i tys + e = expLookup ti tys qi = tyQIdent e + ves = filter (\ (ValueExport i _) -> p i) $ getAssocs vals ast qi cl = case M.lookup qi cls of Just ci -> [(qi, ci)] Nothing -> [] - in ([TypeExport i e []], cl, []) -getTVExps _ _ vals _ _ (ExpValue i) = - ([], [], [ValueExport i (expLookup i vals)]) + in ([TypeExport ti e ves], cl, []) expLookup :: Ident -> SymTab -> Entry expLookup i m = either (errorMessage (getSLoc i)) id $ stLookup "export" i m @@ -234,10 +268,7 @@ eVarI loc = EVar . mkIdentSLoc loc getApp :: HasCallStack => EType -> (Ident, [EType]) -getApp = loop [] - where loop as (EVar i) = (i, as) - loop as (EApp f a) = loop (a:as) f - loop _ t = impossibleShow t +getApp t = fromMaybe (impossibleShow t) $ getAppM t -- Construct a dummy TModule for the currently compiled module. -- It has all the relevant export tables. @@ -302,11 +333,11 @@ allValues :: ValueTable allValues = let - usyms (ImportSpec qual _ _ _, TModule _ _ tes _ _ _ ves _) = + usyms (ImportSpec _ qual _ _ _, TModule _ _ tes _ _ _ ves _) = if qual then [] else - [ (i, [e]) | ValueExport i e <- ves, not (isInternalId i) ] ++ + [ (i, [e]) | ValueExport i e <- ves, not (isInstId i) ] ++ [ (i, [e]) | TypeExport _ _ cs <- tes, ValueExport i e <- cs ] - qsyms (ImportSpec _ _ mas _, TModule mn _ tes _ cls _ ves _) = + qsyms (ImportSpec _ _ _ mas _, TModule mn _ tes _ cls _ ves _) = let m = fromMaybe mn mas in [ (v, [e]) | ValueExport i e <- ves, let { v = qualIdent m i } ] ++ [ (v, [e]) | TypeExport _ _ cs <- tes, ValueExport i e <- cs, let { v = qualIdent m i } ] ++ @@ -319,9 +350,9 @@ allTypes :: TypeTable allTypes = let - usyms (ImportSpec qual _ _ _, TModule _ _ tes _ _ _ _ _) = + usyms (ImportSpec _ qual _ _ _, TModule _ _ tes _ _ _ _ _) = if qual then [] else [ (i, [e]) | TypeExport i e _ <- tes ] - qsyms (ImportSpec _ _ mas _, TModule mn _ tes _ _ _ _ _) = + qsyms (ImportSpec _ _ _ mas _, TModule mn _ tes _ _ _ _ _) = let m = fromMaybe mn mas in [ (qualIdent m i, [e]) | TypeExport i e _ <- tes ] in stFromList (concatMap usyms mdls) (concatMap qsyms mdls) @@ -332,7 +363,7 @@ allAssocs :: AssocTable allAssocs = let - assocs (ImportSpec _ _ mas _, TModule mn _ tes _ _ _ _ _) = + assocs (ImportSpec _ _ _ mas _, TModule mn _ tes _ _ _ _ _) = let m = fromMaybe mn mas in [ (qualIdent m i, [qualIdent m a | ValueExport a _ <- cs]) | TypeExport i _ cs <- tes ] @@ -364,9 +395,13 @@ eqInstDict (e, _, _) (e', _, _) = eqExpr e e' -- Identifier should only be seen with it's qualified name. -isInternalId :: Ident -> Bool -isInternalId i = (instPrefix ++ uniqIdentSep) `isPrefixOf` unIdent i +isInstId :: Ident -> Bool +isInstId i = (instPrefix ++ uniqIdentSep) `isPrefixOf` unIdent i +mkInstId :: SLoc -> EType -> Ident +mkInstId loc ct = mkIdentSLoc loc $ instPrefix ++ uniqIdentSep ++ clsTy + where clsTy = map (\ c -> if isSpace c then '@' else c) $ showExprRaw ct + instPrefix :: String instPrefix = "inst" @@ -485,8 +520,12 @@ xvs = foldr (uncurry stInsertGlbU) vs primValues in TC { moduleName = mn, unique = 1, fixTable = addPrimFixs fs, typeTable = xts, synTable = ss, valueTable = xvs, assocTable = as, uvarSubst = IM.empty, - tcMode = TCExpr, classTable = cs, ctxTables = (is,[],[],[]), constraints = [], defaults = [] } + tcMode = TCExpr, classTable = cs, ctxTables = (is,[],[],[]), constraints = [], + defaults = stdDefaults } +stdDefaults :: [EType] +stdDefaults = [EVar identInteger, EVar identFloatW, EApp (EVar identList) (EVar identChar)] + addPrimFixs :: FixTable -> FixTable addPrimFixs = M.insert (mkIdent "Primitives.->") (AssocRight, -1) . @@ -542,7 +581,7 @@ (mkIdentB nameConstraint, [entry nameConstraint sKind]), (mkIdentB nameSymbol, [entry nameSymbol sKind]), (mkIdentB nameNat, [entry nameNat sKind]), - (mkIdentB nameArrow, [entry nameArrow sKindKindKind]) + (identArrow, [entry nameArrow sKindKindKind]) ] in stFromList (map (first unQualIdent) qkinds) qkinds @@ -555,7 +594,7 @@ primTypes :: [(Ident, [Entry])] primTypes = let - entry i = Entry (EVar (mkIdentB i)) + entry i = Entry (EVar i) k = mkIdent "k" kv = EVar k kk = IdKind k sKind @@ -563,20 +602,20 @@ tuple n = let i = tupleConstr builtinLoc n - in (i, [entry (unIdent i) $ EForall [kk] $ foldr kArrow kv (replicate n kv)]) + in (i, [entry i $ EForall [kk] $ foldr kArrow kv (replicate n kv)]) kImplies = EForall [kk] $ kConstraint `kArrow` (kv `kArrow` kv) in [ -- The function arrow et al are bothersome to define in Primitives, so keep them here. -- But the fixity is defined in Primitives. - (mkIdentB "->", [entry nameArrow kTypeTypeTypeS]), - (mkIdentB "=>", [entry nameImplies kImplies]), - (mkIdentB "~", [entry nameTypeEq kTypeTypeConstraintS]), + (mkIdentB "->", [entry identArrow kTypeTypeTypeS]), + (mkIdentB "=>", [entry identImplies kImplies]), + (mkIdentB "~", [entry identTypeEq kTypeTypeConstraintS]), -- Primitives.hs uses the type [], and it's annoying to fix that. -- XXX should not be needed - (mkIdentB nameList, [entry nameList kTypeTypeS]), - (mkIdentB "\x2192", [entry nameArrow kTypeTypeTypeS]), -- -> - (mkIdentB "\x21d2", [entry nameImplies kImplies]) -- => + (identList, [entry identList kTypeTypeS]), + (mkIdentB "\x2192", [entry identArrow kTypeTypeTypeS]), -- -> + (mkIdentB "\x21d2", [entry identImplies kImplies]) -- => ] ++ map tuple (enumFromTo 2 10) @@ -750,7 +789,7 @@ Just t2 -> unify loc (EUVar r1) t2 unifyUnboundVar loc r1 t2 = do vs <- getMetaTyVars [t2] - if elemBy (==) r1 vs then + if elem r1 vs then tcErrorTK loc $ "cyclic " ++ showExpr (EUVar r1) ++ " = " ++ showExpr t2 else setUVar r1 t2 @@ -793,7 +832,9 @@ tLookup (msgTCMode tcm) i tInst :: HasCallStack => Expr -> EType -> T (Expr, EType) -tInst ae (EForall vks t) = tInstForall ae vks t >>= uncurry tInst +tInst ae (EForall vks t) = do + t' <- tInstForall vks t + tInst ae t' tInst ae at | Just (ctx, t) <- getImplies at = do d <- newDictIdent (getSLoc ae) --traceM $ "tInst: addConstraint: " ++ show ae ++ ", " ++ show d ++ " :: " ++ show ctx @@ -801,18 +842,18 @@ tInst (EApp ae (EVar d)) t tInst ae at = return (ae, at) -tInstForall :: Expr -> [IdKind] -> EType -> T (Expr, EType) -tInstForall ae vks t = +tInstForall :: [IdKind] -> EType -> T EType +tInstForall vks t = if null vks then - return (ae, t) + return t else do let vs = map idKindIdent vks us <- mapM (const newUVar) vks - return (ae, subst (zip vs us) t) + return (subst (zip vs us) t) -tInst' :: (Expr, EType) -> T (Expr, EType) -tInst' (ae, EForall vks t) = tInstForall ae vks t -tInst' et = return et +tInst' :: EType -> T EType +tInst' (EForall vks t) = tInstForall vks t +tInst' t = return t extValE :: HasCallStack => Ident -> EType -> Expr -> T () @@ -892,21 +933,25 @@ putTypeTable venv return a -tcDefs :: [EDef] -> T [EDef] -tcDefs ds = do +tcDefs :: ImpType -> [EDef] -> T [EDef] +tcDefs impt ds = do -- traceM ("tcDefs 1:\n" ++ showEDefs ds) mapM_ tcAddInfix ds dst <- tcDefsType ds -- traceM ("tcDefs 2:\n" ++ showEDefs dst) mapM_ addTypeSyn dst - dst' <- tcExpand dst + dst' <- tcExpand impt dst -- traceM ("tcDefs 3:\n" ++ showEDefs dst') - setDefault dst' - tcDefsValue dst' + case impt of + ImpNormal -> do + setDefault dst' + tcDefsValue dst' + ImpBoot -> + return dst' setDefault :: [EDef] -> T () setDefault defs = do - let ds = last $ [] : [ ts | Default ts <- defs ] + let ds = last $ stdDefaults : [ ts | Default ts <- defs ] ds' <- mapM expandSyn ds putDefaults ds' @@ -943,14 +988,14 @@ return $ M.fromList iks' -- Expand class and instance definitions (must be done after type synonym processing) -tcExpand :: [EDef] -> T [EDef] -tcExpand dst = withTypeTable $ do - dsc <- concat <$> mapM expandClass dst -- Expand all class definitions - dsf <- concat <$> mapM expandField dsc -- Add HasField instances +tcExpand :: ImpType -> [EDef] -> T [EDef] +tcExpand impt dst = withTypeTable $ do + dsc <- concat <$> mapM (expandClass impt) dst -- Expand all class definitions + dsf <- concat <$> mapM expandField dsc -- Add HasField instances -- traceM $ showEDefs dsf - dsd <- concat <$> mapM doDeriving dsf -- Add derived instances + dsd <- concat <$> mapM doDeriving dsf -- Add derived instances -- traceM $ showEDefs dsd - dsi <- concat <$> mapM expandInst dsd -- Expand all instance definitions + dsi <- concat <$> mapM expandInst dsd -- Expand all instance definitions return dsi -- Check&rename the given kinds, also insert the type variables in the symbol table. @@ -1102,8 +1147,8 @@ -- in the desugaring pass. -- Default methods are added as actual definitions. -- The constructor and methods are added to the symbol table in addValueType. -expandClass :: EDef -> T [EDef] -expandClass dcls@(Class ctx (iCls, vks) fds ms) = do +expandClass :: ImpType -> EDef -> T [EDef] +expandClass impt dcls@(Class ctx (iCls, vks) fds ms) = do mn <- gets moduleName let meths = [ b | b@(BSign _ _) <- ms ] @@ -1115,15 +1160,17 @@ def (Just eqns) = Fcn iDflt eqns iDflt = mkDefaultMethodId methId -- XXX This isn't right, "Prelude._nodefault" might not be in scope - noDflt = EApp noDefaultE (mkEStr (getSLoc iCls) (unIdent iCls ++ "." ++ unIdent methId)) + noDflt = mkExn (getSLoc methId) (unIdent methId) "noMethodError" +-- EApp noDefaultE (mkEStr (getSLoc iCls) (unIdent iCls ++ "." ++ unIdent methId)) +--noDefaultE :: Expr +--noDefaultE = ELit noSLoc $ LExn "Control.Exception.Internal.noMethodError" mkDflt _ = impossible - dDflts = concatMap mkDflt meths + dDflts = case impt of + ImpNormal -> concatMap mkDflt meths + ImpBoot -> [] addClassTable (qualIdent mn iCls) (vks, ctx, EUVar 0, methIds, mkIFunDeps (map idKindIdent vks) fds) -- Initial entry, no type needed. return $ dcls : dDflts -expandClass d = return [d] - -mkEStr :: SLoc -> String -> Expr -mkEStr loc str = ESign (ELit loc (LStr str)) $ EListish $ LList [tConI loc "Char"] +expandClass _ d = return [d] simpleEqn :: Expr -> [Eqn] simpleEqn e = [Eqn [] $ simpleAlts e] @@ -1136,9 +1183,6 @@ --mkIFunDeps vs [] = [(map (const True) vs, map (const False) vs)] mkIFunDeps vs fds = map (\ (is, os) -> (map (`elem` is) vs, map (`elem` os) vs)) fds -noDefaultE :: Expr -noDefaultE = ELit noSLoc $ LPrim "noDefault" - -- Turn (unqualified) class and method names into a default method name mkDefaultMethodId :: Ident -> Ident mkDefaultMethodId meth = addIdentSuffix meth "$dflt" @@ -1157,8 +1201,9 @@ (vks, ctx, cc) <- splitInst <$> expandSyn act let loc = getSLoc act qiCls = getAppCon cc - iInst <- newIdent loc instPrefix - let sign = Sign [iInst] act + let iInst = mkInstId loc cc + sign = Sign [iInst] act +-- traceM ("expandInst " ++ show iInst) -- (e, _) <- tLookupV iCls ct <- gets classTable -- let qiCls = getAppCon e @@ -1465,8 +1510,18 @@ -- traceM $ "tcExpr(1) EApp: f=" ++ show f ++ "; f'=" ++ show f' ++ " :: " ++ show ft (at, rt) <- unArrow loc ft -- traceM $ "tcExpr(2) EApp: f=" ++ show f ++ " :: " ++ show ft ++ ", arg=" ++ show a ++ " :: " ++ show at ++ " retty=" ++ show rt + -- We want to do the unification of rt ant mt before checking the argument to + -- have more type information. See tests/Eq1.hs. + -- But instSigma may transform the input expression, so we have to be careful. + let etmp = EUVar ugly + ugly = -1::Int + etmp' <- instSigma loc etmp rt mt a' <- checkSigma a at - instSigma loc (EApp f' a') rt mt +-- traceM $ "tcExpr(3) EApp: f = " ++ show f ++ " :: " ++ show ft ++ ", arg=" ++ show a' ++ " :: " ++ show at ++ " retty=" ++ show rt ++ " mt = " ++ show mt + let res = EApp f' a' + case etmp' of + EUVar _ -> return res -- instSigma did nothing, this is the common case + _ -> return $ substEUVar [(ugly, res)] etmp' EOper e ies -> do e' <- tcOper e ies; tcExpr mt e' ELam qs -> tcExprLam mt qs @@ -1487,10 +1542,10 @@ case mex of -- Convert to Int in the compiler, that way (99::Int) will never involve fromInteger -- (which is not always in scope). - Just (EVar v) | v == mkIdent nameInt -> tcLit mt loc (LInt (fromInteger i)) - | v == mkIdent nameWord -> tcLit' mt loc (LInt (fromInteger i)) (tConI loc nameWord) - | v == mkIdent nameFloatW -> tcLit mt loc (LDouble (fromInteger i)) - | v == mkIdent nameInteger -> tcLit mt loc lit + Just (EVar v) | v == identInt -> tcLit mt loc (LInt (fromInteger i)) + | v == identWord -> tcLit' mt loc (LInt (fromInteger i)) (tConI loc nameWord) + | v == identFloatW -> tcLit mt loc (LDouble (fromInteger i)) + | v == identInteger -> tcLit mt loc lit _ -> do (f, ft) <- tInferExpr (EVar (mkIdentSLoc loc "fromInteger")) -- XXX should have this qualified somehow (_at, rt) <- unArrow loc ft @@ -1510,7 +1565,7 @@ mex <- getExpected mt case mex of Just (EApp (EVar lst) (EVar c)) - | lst == mkIdent nameList, c == mkIdent nameChar -> tcLit mt loc lit + | lst == identList, c == identChar -> tcLit mt loc lit _ -> do (f, ft) <- tInferExpr (EVar (mkIdentSLoc loc $ "fromString")) -- XXX should have this qualified somehow (_at, rt) <- unArrow loc ft @@ -1647,6 +1702,7 @@ failureFree (EVar _) = True failureFree (ETuple ps) = all failureFree ps failureFree (ESign p _) = failureFree p +failureFree (EAt _ p) = failureFree p failureFree _ = False eSetFields :: EField -> Expr -> Expr @@ -1704,9 +1760,8 @@ ENegApp _ -> return apat _ -> error $ "dsEFields " ++ show apat --- XXX could be better unsetField :: Ident -> Expr -unsetField i = EVar $ mkIdentSLoc (getSLoc i) "undefined" +unsetField i = mkExn (getSLoc i) (unIdent i) "recConError" dsUpdate :: (Ident -> Expr) -> Expr -> [EField] -> T (Maybe Expr) dsUpdate unset e flds = do @@ -1733,6 +1788,7 @@ tcLit :: HasCallStack => Expected -> SLoc -> Lit -> T Expr tcLit mt loc l@(LPrim _) = newUVar >>= tcLit' mt loc l +tcLit mt loc l@(LExn _) = newUVar >>= tcLit' mt loc l tcLit mt loc l = do let t = case l of @@ -1953,20 +2009,20 @@ return ([], [], ae) | isConIdent i -> do - ipt <- tLookupV i + (con, xpt) <- tLookupV i -- traceM (show ipt) - case ipt of + case xpt of -- Sanity check - (_, EForall _ (EForall _ _)) -> return () + EForall _ (EForall _ _) -> return () _ -> undefined - (app, EForall avs apt) <- tInst' ipt + EForall avs apt <- tInst' xpt (sks, spt) <- shallowSkolemise avs apt (d, p, pt) <- case getImplies spt of - Nothing -> return ([], app, apt) + Nothing -> return ([], con, apt) Just (ctx, pt') -> do di <- newADictIdent loc - return ([(di, ctx)], EApp app (EVar di), pt') + return ([(di, ctx)], EApp con (EVar di), pt') -- We will only have an expected type for a non-nullary constructor pp <- case mt of @@ -2372,6 +2428,9 @@ constraintHasTyVar :: TRef -> (Ident, EConstraint) -> T Bool constraintHasTyVar tv (_, t) = elem tv <$> getMetaTyVars [t] +-- When defaulting to a type that has a Num instance, +-- only do the defaulting if at least one of the classes is numeric. +-- Similarely for IsString. defaultOneTyVar :: TRef -> T [Solved] defaultOneTyVar tv = do old <- get -- get entire old state @@ -2379,20 +2438,66 @@ (ourcs, othercs) <- partitionM (constraintHasTyVar tv) (constraints old) let tryDefaults [] = return [] tryDefaults (ty:tys) = do - setUVar tv ty - putConstraints ourcs - ds <- solveConstraints - rcs <- gets constraints - if null rcs then do - -- Success, the type variable is gone - putConstraints othercs -- put back the other constraints - return ds + ok <- checkDefaultTypes ty ourcs + --traceM ("checkDefaultTypes: " ++ show (tv, ty, ourcs, ok)) + if not ok then + tryDefaults tys -- don't default else do - -- Not solved, try with the nest type - put old -- restore solver state - tryDefaults tys -- and try with next type + setUVar tv ty + putConstraints ourcs + ds <- solveConstraints + rcs <- gets constraints + if null rcs then do + -- Success, the type variable is gone + putConstraints othercs -- put back the other constraints + return ds + else do + -- Not solved, try with the nest type + put old -- restore solver state + tryDefaults tys -- and try with next type tryDefaults (defaults old) +identNum :: Ident +identNum = mkIdent "Data.Num.Num" + +identIsString :: Ident +identIsString = mkIdent "Data.String.IsString" + +getSuperClasses :: Ident -> T (Maybe [Ident]) +getSuperClasses i = do + ct <- gets classTable + case M.lookup i ct of + Nothing -> return Nothing + Just (_, supers, _, _, _) -> return $ Just $ map (fst . getApp) supers + +checkDefaultTypes :: EType -> Constraints -> T Bool +checkDefaultTypes ty cs = do + let -- Is there an instance (c t)? + hasInstance :: Ident -> EType -> T Bool + hasInstance c t = do + it <- gets instTable + case M.lookup c it of + Nothing -> return False + Just (InstInfo atomMap _ _) -> return $ isJust $ M.lookup (fst $ getApp t) atomMap + + -- Is i among the super-classes (or identical) of ci. + hasSuper :: Ident -> Ident -> T Bool + hasSuper i ci | i == ci = return True + | otherwise = do + msup <- getSuperClasses ci + return $ i `elem` fromMaybe [] msup + + let clss = map (fst . getApp . snd) cs + num <- hasInstance identNum ty -- If it's a numeric type + if num then + or <$> mapM (hasSuper identNum) clss -- then make sure one of the classes is numeric. + else do + str <- hasInstance identIsString ty -- If it's a stringy type + if str then + or <$> mapM (hasSuper identIsString) clss -- then make sure one of the classes is stringy. + else + return True -- Otherwise, just allow the defaulting. + {- showInstInfo :: InstInfo -> String showInstInfo (InstInfo m ds fds) = "InstInfo " ++ show (M.toList m) ++ " " ++ showListS showInstDict ds ++ show fds @@ -2522,8 +2627,11 @@ return $ Just (ETuple (map (EVar . fst) goals), goals, []) solveTypeEq :: SolveOne -solveTypeEq loc _iCls [t1, t2] = do +-- If either type is a unification variable, just do the unification. +solveTypeEq loc _iCls [t1, t2] | isEUVar t1 || isEUVar t2 = return $ Just (ETuple [], [], [(loc, t1, t2)]) + | otherwise = do eqs <- gets typeEqTable + --traceM ("solveTypeEq eqs=" ++ show eqs) case solveEq eqs t1 t2 of Nothing -> return Nothing Just (de, tts) -> do @@ -2533,6 +2641,10 @@ ncs <- mapM mkEq tts return $ Just (de, ncs, []) solveTypeEq _ _ _ = impossible + +isEUVar :: EType -> Bool +isEUVar (EUVar _) = True +isEUVar _ = False solveKnownNat :: SolveOne solveKnownNat loc iCls [e@(ELit _ (LInteger _))] = mkConstDict loc iCls e diff --git a/src/runtime/config-esp32.h b/src/runtime/config-esp32.h --- a/src/runtime/config-esp32.h +++ b/src/runtime/config-esp32.h @@ -87,93 +87,3 @@ #define MAIN void app_main(void) #define INITIALIZATION - - - -#include -#include "freertos/FreeRTOS.h" -#include "freertos/task.h" -#include "driver/gpio.h" -#include "esp_log.h" -#include "led_strip.h" -#include "sdkconfig.h" - -#define BLINK_GPIO CONFIG_BLINK_GPIO - -static led_strip_handle_t led_strip; - -void led_strip_set_pixel(led_strip_handle_t, int, int, int, int); - -#if 0 -static void blink_led(void) -{ -#if 1 - static int state = 0; - static int br = 16; - switch (state) { - case 0: - led_strip_set_pixel(led_strip, 0, br, 16-br, 0); - br--; - if (br == 0) { br = 16; state++; } - break; - case 1: - led_strip_set_pixel(led_strip, 0, 0, br, 16-br); - br--; - if (br == 0) { br = 16; state++; } - break; - case 2: - led_strip_set_pixel(led_strip, 0, 16-br, 0, br); - br--; - if (br == 0) { br = 16; state = 0; } - break; - } - led_strip_refresh(led_strip); - -#else - /* If the addressable LED is enabled */ - if (s_led_state) { - /* Set the LED pixel using RGB from 0 (0%) to 255 (100%) for each color */ - led_strip_set_pixel(led_strip, 0, 16, 16, 16); - /* Refresh the strip to send data */ - led_strip_refresh(led_strip); - } else { - /* Set all LED off to clear all pixels */ - led_strip_clear(led_strip); - } -#endif -} -#endif - -void -main_setup(void) -{ - ESP_LOGI(TAG, "Example configured to blink addressable LED!"); - /* LED strip initialization with the GPIO and pixels number*/ - led_strip_config_t strip_config = { - .strip_gpio_num = BLINK_GPIO, - .max_leds = 1, // at least one LED on board - }; -#if CONFIG_BLINK_LED_STRIP_BACKEND_RMT - led_strip_rmt_config_t rmt_config = { - .resolution_hz = 10 * 1000 * 1000, // 10MHz - .flags.with_dma = false, - }; - ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip)); -#elif CONFIG_BLINK_LED_STRIP_BACKEND_SPI - led_strip_spi_config_t spi_config = { - .spi_bus = SPI2_HOST, - .flags.with_dma = true, - }; - ESP_ERROR_CHECK(led_strip_new_spi_device(&strip_config, &spi_config, &led_strip)); -#else -#error "unsupported LED strip backend" -#endif - /* Set all LED off to clear all pixels */ - led_strip_clear(led_strip); -} - -void delay(int t) -{ - vTaskDelay(t / portTICK_PERIOD_MS); -} - diff --git a/src/runtime/eval.c b/src/runtime/eval.c --- a/src/runtime/eval.c +++ b/src/runtime/eval.c @@ -16,6 +16,8 @@ #if WANT_DIR #include #include +#include +#include #endif /* WANT_DIR */ #if WANT_MD5 @@ -160,30 +162,30 @@ #endif /* WANT_STDIO */ #endif /* !define(ERR) */ -enum node_tag { T_FREE, T_IND, T_AP, T_INT, T_DBL, T_PTR, T_FUNPTR, T_BADDYN, T_ARR, +enum node_tag { T_FREE, T_IND, T_AP, T_INT, T_DBL, T_PTR, T_FUNPTR, T_FORPTR, T_BADDYN, T_ARR, T_S, T_K, T_I, T_B, T_C, T_A, T_Y, T_SS, T_BB, T_CC, T_P, T_R, T_O, T_U, T_Z, T_K2, T_K3, T_K4, T_CCB, T_ADD, T_SUB, T_MUL, T_QUOT, T_REM, T_SUBR, T_UQUOT, T_UREM, T_NEG, T_AND, T_OR, T_XOR, T_INV, T_SHL, T_SHR, T_ASHR, T_EQ, T_NE, T_LT, T_LE, T_GT, T_GE, T_ULT, T_ULE, T_UGT, T_UGE, - T_PEQ, T_PNULL, T_PADD, T_PSUB, - T_TOPTR, T_TOINT, T_TODBL, + T_FPADD, T_FP2P, T_FPNEW, T_FPFIN, + T_TOPTR, T_TOINT, T_TODBL, T_TOFUNPTR, T_BININT2, T_BININT1, T_UNINT1, T_BINDBL2, T_BINDBL1, T_UNDBL1, #if WANT_FLOAT T_FADD, T_FSUB, T_FMUL, T_FDIV, T_FNEG, T_ITOF, T_FEQ, T_FNE, T_FLT, T_FLE, T_FGT, T_FGE, T_FSHOW, T_FREAD, #endif - T_ARR_ALLOC, T_ARR_SIZE, T_ARR_READ, T_ARR_WRITE, T_ARR_EQ, - T_ERROR, T_NODEFAULT, T_NOMATCH, T_SEQ, T_EQUAL, T_COMPARE, T_RNF, + T_ARR_ALLOC, T_ARR_COPY, T_ARR_SIZE, T_ARR_READ, T_ARR_WRITE, T_ARR_EQ, + T_RAISE, T_SEQ, T_EQUAL, T_COMPARE, T_RNF, T_TICK, T_IO_BIND, T_IO_THEN, T_IO_RETURN, T_IO_CCBIND, T_IO_SERIALIZE, T_IO_DESERIALIZE, T_IO_STDIN, T_IO_STDOUT, T_IO_STDERR, T_IO_GETARGREF, - T_IO_PERFORMIO, T_IO_GETTIMEMILLI, T_IO_PRINT, T_IO_CATCH, - T_IO_CCALL, T_DYNSYM, + T_IO_PERFORMIO, T_IO_GETTIMEMILLI, T_IO_PRINT, T_CATCH, + T_IO_CCALL, T_IO_GC, T_DYNSYM, T_NEWCASTRINGLEN, T_PEEKCASTRING, T_PEEKCASTRINGLEN, T_FROMUTF8, T_STR, @@ -191,28 +193,30 @@ }; #if 0 static const char* tag_names[] = { - "FREE", "IND", "AP", "INT", "DBL", "PTR", "BADDYN", "ARR", + "FREE", "IND", "AP", "INT", "DBL", "PTR", "FUNPTR", "FORPTR", "BADDYN", "ARR", "S", "K", "I", "B", "C", "A", "Y", "SS", "BB", "CC", "P", "R", "O", "U", "Z", "K2", "K3", "K4", "CCB", "ADD", "SUB", "MUL", "QUOT", "REM", "SUBR", "UQUOT", "UREM", "NEG", "AND", "OR", "XOR", "INV", "SHL", "SHR", "ASHR", "EQ", "NE", "LT", "LE", "GT", "GE", "ULT", "ULE", "UGT", "UGE", - "PEQ", "PNULL", "PADD", "PSUB", - "TOPTR", "TOINT", "TODBL", + "FPADD", "FP2P", "FPNEW", "FPFIN", + "TOPTR", "TOINT", "TODBL", "TOFUNPTR", + "BININT2", "BININT1", "UNINT1", + "BINDBL2", "BINDBL1", "UNDBL1", #if WANT_FLOAT "FADD", "FSUB", "FMUL", "FDIV", "FNEG", "ITOF", "FEQ", "FNE", "FLT", "FLE", "FGT", "FGE", "FSHOW", "FREAD", #endif - "ARR_ALLOC", "ARR_SIZE", "ARR_READ", "ARR_WRITE", "ARR_EQ", - "ERROR", "NODEFAULT", "NOMATCH", "SEQ", "EQUAL", "COMPARE", "RNF", + "ARR_ALLOC", "ARR_COPY", "ARR_SIZE", "ARR_READ", "ARR_WRITE", "ARR_EQ", + "RAISE", "SEQ", "EQUAL", "COMPARE", "RNF", "TICK", "IO_BIND", "IO_THEN", "IO_RETURN", "C'BIND", "IO_SERIALIZE", "IO_DESERIALIZE", "IO_STDIN", "IO_STDOUT", "IO_STDERR", "IO_GETARGREF", - "IO_PERFORMIO", "IO_GETTIMEMILLI", "IO_PRINT", "IO_CATCH", - "IO_CCALL", "DYNSYM", + "IO_PERFORMIO", "IO_GETTIMEMILLI", "IO_PRINT", "CATCH", + "IO_CCALL", "IO_GC", "DYNSYM", "NEWCASTRINGLEN", "PEEKCASTRING", "PEEKCASTRINGLEN", "FROMUTF8", "STR", @@ -222,6 +226,7 @@ struct ioarray; struct ustring; +struct forptr; typedef struct node { union { @@ -237,6 +242,7 @@ void *uuptr; HsFunPtr uufunptr; struct ioarray *uuarray; + struct forptr *uuforptr; } uarg; } node; typedef struct node* NODEPTR; @@ -254,6 +260,7 @@ #define CSTR(p) (p)->uarg.uucstring #define PTR(p) (p)->uarg.uuptr #define FUNPTR(p) (p)->uarg.uufunptr +#define FORPTR(p) (p)->uarg.uuforptr #define ARR(p) (p)->uarg.uuarray #define INDIR(p) ARG(p) #define NODE_SIZE sizeof(node) @@ -285,6 +292,34 @@ }; struct ioarray *array_root = 0; +/* + * A Haskell ForeignPtr has a normal pointer, and a finalizer + * function that is to be called when there are no more references + * to the ForeignPtr. + * A complication is that using plusForeignPtr creates a new + * ForeignPtr that must share the same finalizer. + * There is one struct forptr for each ForeignPtr. It has pointer + * to the actual data, and to a struct final which is shared between + * all ForeignPtrs that have been created with plusForeignPtr. + * During GC the used bit is set for any references to the forptr. + * The scan phase will traverse the struct final chain and run + * the finalizer, and free associated structs. + */ +struct final { + struct final *next; /* the next finalizer */ + HsFunPtr final; /* function to call to release resource */ + void *arg; /* argument to final when called */ + struct forptr *back; /* back pointer to the first forptr */ + int marked; /* mark bit for GC */ +}; + +struct forptr { + struct forptr *next; /* the next ForeignPtr that shares the same finilizer */ + void *payload; /* the actual pointer */ + struct final *finalizer; /* the finalizer for this ForeignPtr */ +}; +struct final *final_root = 0; + counter_t num_reductions = 0; counter_t num_alloc = 0; counter_t num_gc = 0; @@ -325,6 +360,7 @@ counter_t num_free; counter_t num_arr_alloc; counter_t num_arr_free; +counter_t num_fin_free; #define BITS_PER_WORD (sizeof(bits_t) * 8) bits_t *free_map; /* 1 bit per node, 0=free, 1=used */ @@ -367,6 +403,24 @@ return arr; } +struct ioarray* +arr_copy(struct ioarray *oarr) +{ + size_t sz = oarr->size; + struct ioarray *arr = MALLOC(sizeof(struct ioarray) + (sz-1) * sizeof(NODEPTR)); + + if (!arr) + memerr(); + arr->next = array_root; + array_root = arr; + arr->marked = 0; + arr->permanent = 0; + arr->size = sz; + memcpy(arr->array, oarr->array, sz * sizeof(NODEPTR)); + num_arr_alloc++; + return arr; +} + /*****************************************************************************/ #if WANT_TICK @@ -535,6 +589,7 @@ NODEPTR combFalse, combTrue, combUnit, combCons, combPair; NODEPTR combCC, combZ, combIOBIND, combIORETURN, combIOCCBIND; NODEPTR combLT, combEQ, combGT; +NODEPTR combShowExn, combU, combK2; NODEPTR combBININT1, combBININT2, combUNINT1; NODEPTR combBINDBL1, combBINDBL2, combUNDBL1; @@ -614,15 +669,11 @@ { "<=", T_LE, T_GE }, { ">", T_GT, T_LT }, { ">=", T_GE, T_LE }, - { "p==", T_PEQ, T_PEQ }, - { "pnull", T_PNULL }, - { "pcast", T_I }, - { "p+", T_PADD }, - { "p-", T_PSUB }, + { "fp+", T_FPADD }, + { "fp2p", T_FP2P }, + { "fpnew", T_FPNEW }, + { "fpfin", T_FPFIN }, { "seq", T_SEQ }, - { "error", T_ERROR }, - { "noDefault", T_NODEFAULT }, - { "noMatch", T_NOMATCH }, { "equal", T_EQUAL, T_EQUAL }, { "sequal", T_EQUAL, T_EQUAL }, { "compare", T_COMPARE }, @@ -644,8 +695,11 @@ { "IO.getArgRef", T_IO_GETARGREF }, { "IO.getTimeMilli", T_IO_GETTIMEMILLI }, { "IO.performIO", T_IO_PERFORMIO }, - { "IO.catch", T_IO_CATCH }, + { "IO.gc", T_IO_GC }, + { "raise", T_RAISE }, + { "catch", T_CATCH }, { "A.alloc", T_ARR_ALLOC }, + { "A.copy", T_ARR_COPY }, { "A.size", T_ARR_SIZE }, { "A.read", T_ARR_READ }, { "A.write", T_ARR_WRITE }, @@ -657,6 +711,7 @@ { "toPtr", T_TOPTR }, { "toInt", T_TOINT }, { "toDbl", T_TODBL }, + { "toFunPtr", T_TOFUNPTR }, }; #if GCRED @@ -692,6 +747,8 @@ case T_P: combPair = n; break; case T_CC: combCC = n; break; case T_Z: combZ = n; break; + case T_U: combU = n; break; + case T_K2: combK2 = n; break; case T_IO_BIND: combIOBIND = n; break; case T_IO_RETURN: combIORETURN = n; break; case T_IO_CCBIND: combIOCCBIND = n; break; @@ -722,6 +779,8 @@ case T_P: combPair = n; break; case T_CC: combCC = n; break; case T_Z: combZ = n; break; + case T_U: combU = n; break; + case T_K2: combK2 = n; break; case T_IO_BIND: combIOBIND = n; break; case T_IO_RETURN: combIORETURN = n; break; case T_IO_CCBIND: combIOCCBIND = n; break; @@ -761,6 +820,13 @@ NEWAP(combLT, combZ, combFalse); /* Z B */ NEWAP(combEQ, combFalse, combFalse); /* K K */ NEWAP(combGT, combFalse, combTrue); /* K A */ + { + /* The displaySomeException compiles to (U (U (K2 A))) */ + NODEPTR x; + NEWAP(x, combK2, combTrue); /* (K2 A) */ + NEWAP(x, combU, x); /* (U (K2 A)) */ + NEWAP(combShowExn, combU, x); /* (U (U (K2 A))) */ + } #undef NEWAP #if INTTABLE @@ -918,8 +984,14 @@ np = &arr->array[arr->marked++]; break; } - default: goto fin; + case T_FORPTR: + FORPTR(n)->finalizer->marked = 1; + goto fin; + + default: + goto fin; } + if (!is_marked_used(*to_push)) { // mark_depth++; PUSH((NODEPTR)to_push); @@ -944,7 +1016,6 @@ gc(void) { stackptr_t i; - struct ioarray **arrp, *arr; num_gc++; num_marked = 0; @@ -958,7 +1029,7 @@ for (i = 0; i <= stack_ptr; i++) mark(&stack[i]); // mark everything reachable from permanent array nodes - for (arr = array_root; arr; arr = arr->next) { + for (struct ioarray *arr = array_root; arr; arr = arr->next) { if (arr->permanent) { for (i = 0; i < arr->size; i++) mark(&arr->array[i]); @@ -972,8 +1043,8 @@ if (num_free < heap_size / 50) ERR("heap exhausted"); - for (arrp = &array_root; *arrp; ) { - arr = *arrp; + for (struct ioarray **arrp = &array_root; *arrp; ) { + struct ioarray *arr = *arrp; if (arr->marked || arr->permanent) { arr->marked = 0; arrp = &arr->next; @@ -984,6 +1055,31 @@ } } + for (struct final **finp = &final_root; *finp; ) { + struct final *fin = *finp; + if (fin->marked) { + fin->marked = 0; + finp = &fin->next; + } else { + /* Unused, run finalizer and free all associated memory */ + void (*f)(void *) = (void (*)(void *))fin->final; + if (f) { + //printf("finalizer fin=%p final=%p\n", fin, f); + (*f)(fin->arg); + } + for (struct forptr *p = fin->back; p; ) { + struct forptr *q = p->next; + //printf("free fp=%p\n", p); + FREE(p); + p = q; + } + *finp = fin->next; + num_fin_free++; + //printf("free fin=%p\n", fin); + FREE(fin); + } + } + #if WANT_STDIO if (verbose > 1) { PRINT("gc done, %"PRIcounter" free\n", num_free); @@ -1723,7 +1819,8 @@ } if (n < cells || n >= cells + heap_size) abort(); //PRINT("find_sharing %p %llu ", n, LABEL(n)); - if (GETTAG(n) == T_AP) { + tag_t tag = GETTAG(n); + if (tag == T_AP || tag == T_ARR) { if (test_bit(shared_bits, n)) { /* Alread marked as shared */ //PRINT("shared\n"); @@ -1737,9 +1834,15 @@ /* Mark as visited, and recurse */ //PRINT("unmarked\n"); set_bit(marked_bits, n); - find_sharing(FUN(n)); - n = ARG(n); - goto top; + if (tag == T_AP) { + find_sharing(FUN(n)); + n = ARG(n); + goto top; + } else { + for(size_t i = 0; i < ARR(n)->size; i++) { + find_sharing(ARR(n)->array[i]); + } + } } } else { /* Not an application, so do nothing */ @@ -1849,6 +1952,8 @@ break; case T_FUNPTR: ERR("Cannot serialize function pointers"); + case T_FORPTR: + ERR("Cannot serialize foreign pointers"); break; case T_STR: print_string(f, STR(n)); @@ -1916,13 +2021,10 @@ case T_ULE: putsb("u<=", f); break; case T_UGT: putsb("u>", f); break; case T_UGE: putsb("u>=", f); break; - case T_PEQ: putsb("p==", f); break; - case T_PNULL: putsb("pnull", f); break; - case T_PADD: putsb("p+", f); break; - case T_PSUB: putsb("p-", f); break; - case T_ERROR: putsb("error", f); break; - case T_NODEFAULT: putsb("noDefault", f); break; - case T_NOMATCH: putsb("noMatch", f); break; + case T_FPADD: putsb("fp+", f); break; + case T_FP2P: putsb("fp2p", f); break; + case T_FPNEW: putsb("fpnew", f); break; + case T_FPFIN: putsb("fpfin", f); break; case T_EQUAL: putsb("equal", f); break; case T_COMPARE: putsb("compare", f); break; case T_RNF: putsb("rnf", f); break; @@ -1937,8 +2039,11 @@ case T_IO_GETARGREF: putsb("IO.getArgRef", f); break; case T_IO_GETTIMEMILLI: putsb("IO.getTimeMilli", f); break; case T_IO_PERFORMIO: putsb("IO.performIO", f); break; - case T_IO_CATCH: putsb("IO.catch", f); break; + case T_IO_GC: putsb("IO.gc", f); break; + case T_RAISE: putsb("raise", f); break; + case T_CATCH: putsb("catch", f); break; case T_ARR_ALLOC: putsb("A.alloc", f); break; + case T_ARR_COPY: putsb("A.copy", f); break; case T_ARR_SIZE: putsb("A.size", f); break; case T_ARR_READ: putsb("A.read", f); break; case T_ARR_WRITE: putsb("A.write", f); break; @@ -1950,6 +2055,7 @@ case T_TOINT: putsb("toInt", f); break; case T_TOPTR: putsb("toPtr", f); break; case T_TODBL: putsb("toDbl", f); break; + case T_TOFUNPTR: putsb("toFunPtr", f); break; case T_FROMUTF8: putsb("fromUTF8", f); break; case T_TICK: putb('!', f); @@ -2073,6 +2179,40 @@ return n; } +struct forptr* +mkForPtr(void *p) +{ + struct final *fin = malloc(sizeof(struct final)); + struct forptr *fp = malloc(sizeof(struct forptr)); + if (!fin || !fp) + memerr(); + //printf("mkForPtr p=%p fin=%p fp=%p\n", p, fin, fp); + fin->next = final_root; + final_root = fin; + fin->final = 0; + fin->arg = p; + fin->back = fp; + fin->marked = 0; + fp->next = 0; + fp->payload = p; + fp->finalizer = fin; + return fp; +} + +struct forptr* +addForPtr(struct forptr *ofp, int s) +{ + struct forptr *fp = malloc(sizeof(struct forptr)); + struct final *fin = ofp->finalizer; + if (!fp) + memerr(); + fp->next = ofp; + fin->back = fp; + fp->payload = (char*)ofp->payload + s; + fp->finalizer = fin; + return fp; +} + static INLINE NODEPTR mkNil(void) { @@ -2189,8 +2329,8 @@ return PTR(n); } -/* Evaluate to a T_PTR */ -void * +/* Evaluate to a T_FUNPTR */ +HsFunPtr evalfunptr(NODEPTR n) { n = evali(n); @@ -2202,6 +2342,19 @@ return FUNPTR(n); } +/* Evaluate to a T_FORPTR */ +struct forptr * +evalforptr(NODEPTR n) +{ + n = evali(n); +#if SANITY + if (GETTAG(n) != T_FORPTR) { + ERR1("evalforptr, bad tag %d", GETTAG(n)); + } +#endif + return FORPTR(n); +} + /* Evaluate a string, returns a newly allocated buffer. */ /* XXX this is cheating, should use continuations */ /* XXX the malloc()ed string is leaked if we yield in here. */ @@ -2386,6 +2539,9 @@ } } +/* Used to detect calls to error while we are already in a call to error. */ +int in_raise = 0; + /* This is a yucky hack */ int doing_rnf = 0; @@ -2414,7 +2570,7 @@ stackptr_t stk = stack_ptr; NODEPTR x, y, z, w; value_t xi, yi, r; - void *xp, *yp; + struct forptr *xfp; #if WANT_FLOAT flt_t xd, rd; #endif /* WANT_FLOAT */ @@ -2424,8 +2580,6 @@ #endif enum node_tag tag; struct ioarray *arr; - int sz; - char *res; #if MAXSTACKDEPTH counter_t old_cur_c_stack = cur_c_stack; @@ -2461,6 +2615,7 @@ #define SETDBL(n,d) do { SETTAG((n), T_DBL); SETDBLVALUE((n), (d)); } while(0) #define SETPTR(n,r) do { SETTAG((n), T_PTR); PTR(n) = (r); } while(0) #define SETFUNPTR(n,r) do { SETTAG((n), T_FUNPTR); FUNPTR(n) = (r); } while(0) +#define SETFORPTR(n,r) do { SETTAG((n), T_FORPTR); FORPTR(n) = (r); } while(0) #define OPINT1(e) do { CHECK(1); xi = evalint(ARG(TOP(0))); e; POP(1); n = TOP(-1); } while(0); #define OPPTR2(e) do { CHECK(2); xp = evalptr(ARG(TOP(0))); yp = evalptr(ARG(TOP(1))); e; POP(2); n = TOP(-1); } while(0); #define CMPP(op) do { OPPTR2(r = xp op yp); GOIND(r ? combTrue : combFalse); } while(0) @@ -2485,6 +2640,7 @@ case T_DBL: RET; case T_PTR: RET; case T_FUNPTR: RET; + case T_FORPTR: RET; case T_ARR: RET; case T_BADDYN: ERR1("FFI unknown %s", CSTR(n)); @@ -2550,6 +2706,7 @@ case T_ULE: case T_UGT: case T_UGE: + CHECK(2); n = ARG(TOP(1)); if (GETTAG(n) == T_INT) { n = ARG(TOP(0)); @@ -2562,6 +2719,7 @@ goto top; case T_NEG: case T_INV: + CHECK(1); n = ARG(TOP(0)); PUSH(combUNINT1); goto top; @@ -2577,10 +2735,12 @@ case T_FLE: case T_FGT: case T_FGE: + CHECK(2); n = ARG(TOP(1)); PUSH(combBINDBL2); goto top; case T_FNEG: + CHECK(1); n = ARG(TOP(0)); PUSH(combUNDBL1); goto top; @@ -2615,12 +2775,15 @@ case T_TODBL: CONV(T_DBL); case T_TOINT: CONV(T_INT); case T_TOPTR: CONV(T_PTR); + case T_TOFUNPTR: CONV(T_FUNPTR); #undef CONV - case T_PEQ: CMPP(==); - case T_PNULL: SETTAG(n, T_PTR); PTR(n) = 0; RET; - case T_PADD: CHECK(2); xp = evalptr(ARG(TOP(0))); yi = evalint(ARG(TOP(1))); POP(2); n = TOP(-1); SETPTR(n, (char*)xp + yi); RET; - case T_PSUB: CHECK(2); xp = evalptr(ARG(TOP(0))); yp = evalptr(ARG(TOP(1))); POP(2); n = TOP(-1); SETINT(n, (char*)xp - (char*)yp); RET; + case T_FPADD: CHECK(2); xfp = evalforptr(ARG(TOP(0))); yi = evalint(ARG(TOP(1))); POP(2); n = TOP(-1); SETFORPTR(n, addForPtr(xfp, yi)); RET; + case T_FP2P: CHECK(1); + //printf("T_FP2P\n"); + xfp = evalforptr(ARG(TOP(0))); POP(1); n = TOP(-1); + //printf("T_FP2P xfp=%p, payload=%p\n", xfp, xfp->payload); + SETPTR(n, xfp->payload); RET; case T_ARR_EQ: { @@ -2643,57 +2806,31 @@ GCCHECK(strNodes(STR(x)->size)); GOIND(mkStringU(STR(x))); - case T_NOMATCH: - if (doing_rnf) RET; - { - CHECK(3); - msg = evalstring(ARG(TOP(0)), 0); - xi = evalint(ARG(TOP(1))); - yi = evalint(ARG(TOP(2))); - sz = strlen(msg) + 100; - res = MALLOC(sz); -#if WANT_STDIO - snprintf(res, sz, "no match at %s, line %"PRIvalue", col %"PRIvalue, msg, xi, yi); -#else /* WANT_STDIO */ - strcpy(res, "no match"); -#endif /* WANT_STDIO */ - POP(2); - GCCHECK(strNodes(strlen(res))); - ARG(TOP(0)) = mkStringC(res); - FREE(res); - FREE(msg); - goto err; /* XXX not right message if the error is caught */ - } - case T_NODEFAULT: - if (doing_rnf) RET; - { - CHECK(1); - msg = evalstring(ARG(TOP(0)), 0); - sz = strlen(msg) + 100; - res = MALLOC(sz); - -#if WANT_STDIO - snprintf(res, sz, "no default for %s", msg); -#else /* WANT_STDIO */ - strcpy(res, "no default"); -#endif /* WANT_STDIO */ - GCCHECK(strNodes(strlen(res))); - ARG(TOP(0)) = mkStringC(res); - FREE(res); - FREE(msg); - goto err; /* XXX not right message if the error is caught */ - } - case T_ERROR: + case T_RAISE: if (doing_rnf) RET; - err: if (cur_handler) { - /* Pass the string to the handler */ + /* Pass the exception to the handler */ CHKARG1; cur_handler->hdl_exn = x; longjmp(cur_handler->hdl_buf, 1); } else { - /* No handler, so just die. */ - CHKARGEV1(msg = evalstring(x, 0)); + /* No handler: + * First convert the exception to a string by calling displaySomeException. + * The display function compiles to combShowExn, so we need to build + * (combShowExn x) and evaluate it. + */ + if (in_raise) { + ERR("recursive error"); + EXIT(1); + } + in_raise = 1; + CHECK(1); + GCCHECK(1); + //TOP(0) = new_ap(combShowExn, TOP(0)); + FUN(TOP(0)) = combShowExn; /* TOP(0) = (combShowExn exn) */ + x = evali(TOP(0)); /* evaluate it */ + msg = evalstring(x, 0); /* and convert to a C string */ + POP(1); #if WANT_STDIO /* A horrible hack until we get proper exceptions */ if (strcmp(msg, "ExitSuccess") == 0) { @@ -2703,9 +2840,11 @@ EXIT(1); } #else /* WANT_STDIO */ - ERR1("error: %s", msg); + ERR1("mhs error: %s", msg); #endif /* WANT_STDIO */ } + + case T_SEQ: CHECK(2); evali(ARG(TOP(0))); POP(2); n = TOP(-1); y = ARG(n); GOIND(y); /* seq x y = eval(x); y */ case T_EQUAL: @@ -2740,14 +2879,18 @@ case T_IO_GETARGREF: case T_IO_GETTIMEMILLI: case T_IO_CCALL: - case T_IO_CATCH: + case T_CATCH: case T_NEWCASTRINGLEN: case T_PEEKCASTRING: case T_PEEKCASTRINGLEN: case T_ARR_ALLOC: + case T_ARR_COPY: case T_ARR_SIZE: case T_ARR_READ: case T_ARR_WRITE: + case T_FPNEW: + case T_FPFIN: + case T_IO_GC: RET; case T_DYNSYM: @@ -3112,7 +3255,7 @@ RETIO(n); /* and this is the result */ } - case T_IO_CATCH: + case T_CATCH: { h = MALLOC(sizeof *h); if (!h) @@ -3178,6 +3321,7 @@ NODEPTR elem; struct ioarray *arr; CHECKIO(2); + GCCHECK(1); size = evalint(ARG(TOP(1))); elem = ARG(TOP(2)); arr = arr_alloc(size, elem); @@ -3185,6 +3329,19 @@ ARR(n) = arr; RETIO(n); } + case T_ARR_COPY: + { + struct ioarray *arr; + CHECKIO(1); + GCCHECK(1); + n = evali(ARG(TOP(1))); + if (GETTAG(n) != T_ARR) + ERR("T_ARR_COPY tag"); + arr = arr_copy(ARR(n)); + n = alloc_node(T_ARR); + ARR(n) = arr; + RETIO(n); + } case T_ARR_SIZE: CHECKIO(1); n = evali(ARG(TOP(1))); @@ -3219,6 +3376,34 @@ RETIO(combUnit); } + case T_FPNEW: + { + CHECKIO(1); + //printf("T_FPNEW\n"); + void *xp = evalptr(ARG(TOP(1))); + //printf("T_FPNEW xp=%p\n", xp); + n = alloc_node(T_FORPTR); + SETFORPTR(n, mkForPtr(xp)); + RETIO(n); + } + case T_FPFIN: + { + CHECKIO(2); + //printf("T_FPFIN\n"); + struct forptr *xfp = evalforptr(ARG(TOP(2))); + //printf("T_FPFIN xfp=%p\n", xfp); + HsFunPtr yp = evalfunptr(ARG(TOP(1))); + //printf("T_FPFIN yp=%p\n", yp); + xfp->finalizer->final = yp; + RETIO(combUnit); + } + + case T_IO_GC: + CHECKIO(0); + //printf("gc()\n"); + gc(); + RETIO(combUnit); + default: //printf("bad tag %s\n", tag_names[GETTAG(n)]); ERR1("execio tag %d", GETTAG(n)); @@ -3420,6 +3605,7 @@ PRINT("%"PCOMMA"15"PRIcounter" reductions (%"PCOMMA".1f Mred/s)\n", num_reductions, num_reductions / ((double)run_time / 1000) / 1000000); PRINT("%"PCOMMA"15"PRIcounter" array alloc\n", num_arr_alloc); PRINT("%"PCOMMA"15"PRIcounter" array free\n", num_arr_free); + PRINT("%"PCOMMA"15"PRIcounter" foreign free\n", num_fin_free); #if MAXSTACKDEPTH PRINT("%"PCOMMA"15d max stack depth\n", (int)max_stack_depth); PRINT("%"PCOMMA"15d max C stack depth\n", (int)max_c_stack); @@ -3579,9 +3765,10 @@ void mhs_calloc(int s) { mhs_from_Ptr(s, 2, calloc(mhs_to_CSize(s, 0), mhs_to_CSize(s, 1))); } void mhs_free(int s) { free(mhs_to_Ptr(s, 0)); mhs_from_Unit(s, 1); } +void mhs_addr_free(int s) { mhs_from_FunPtr(s, 0, (HsFunPtr)&FREE); } void mhs_getenv(int s) { mhs_from_Ptr(s, 1, getenv(mhs_to_Ptr(s, 0))); } void mhs_iswindows(int s) { mhs_from_Int(s, 0, iswindows()); } -void mhs_malloc(int s) { mhs_from_Ptr(s, 1, malloc(mhs_to_CSize(s, 0))); } +void mhs_malloc(int s) { mhs_from_Ptr(s, 1, MALLOC(mhs_to_CSize(s, 0))); } void mhs_memcpy(int s) { memcpy(mhs_to_Ptr(s, 0), mhs_to_Ptr(s, 1), mhs_to_CSize(s, 2)); mhs_from_Unit(s, 3); } void mhs_memmove(int s) { memmove(mhs_to_Ptr(s, 0), mhs_to_Ptr(s, 1), mhs_to_CSize(s, 2)); mhs_from_Unit(s, 3); } void mhs_peekPtr(int s) { mhs_from_Ptr(s, 1, peekPtr(mhs_to_Ptr(s, 0))); } @@ -3639,6 +3826,7 @@ void mhs_readdir(int s) { mhs_from_Ptr(s, 1, readdir(mhs_to_Ptr(s, 0))); } void mhs_c_d_name(int s) { mhs_from_Ptr(s, 1, ((struct dirent *)(mhs_to_Ptr(s, 0)))->d_name); } void mhs_chdir(int s) { mhs_from_Int(s, 1, chdir(mhs_to_Ptr(s, 0))); } +void mhs_mkdir(int s) { mhs_from_Int(s, 2, mkdir(mhs_to_Ptr(s, 0), mhs_to_Int(s, 1))); } #endif /* WANT_DIR */ struct ffi_entry ffi_table[] = { @@ -3685,6 +3873,7 @@ { "calloc", mhs_calloc}, { "free", mhs_free}, +{ "&free", mhs_addr_free}, { "getenv", mhs_getenv}, { "iswindows", mhs_iswindows}, { "malloc", mhs_malloc}, @@ -3745,6 +3934,7 @@ { "opendir", mhs_opendir}, { "readdir", mhs_readdir}, { "chdir", mhs_chdir}, +{ "mkdir", mhs_mkdir}, #endif /* WANT_DIR */ { 0,0 } }; diff --git a/src/runtime/lz77.c b/src/runtime/lz77.c --- a/src/runtime/lz77.c +++ b/src/runtime/lz77.c @@ -71,7 +71,7 @@ return outoffs; } -static size_t +static INLINE size_t match(uint8_t *src, uint8_t *win, uint8_t *end) { size_t n; @@ -81,6 +81,7 @@ return n; } +/* XXX finding the match really needs some clever speedup */ size_t lz77c(uint8_t *src, size_t srclen, uint8_t **bufp) { diff --git a/tests/Array.hs b/tests/Array.hs new file mode 100644 --- /dev/null +++ b/tests/Array.hs @@ -0,0 +1,22 @@ +module Array where +import Data.Array + +main :: IO () +main = do + let a = array (1::Int,3) [(1,'A'),(2,'b'),(3,'3')] + let b = array (1,2) [(1,'Q'),(2,'q')] + print a + print (a == a) + print (a == b) + print $ listArray (0,4) [1..5::Int] + print $ accumArray (+) 0 (0,1) [(1,10),(0,20),(1,5)] + print $ a ! 1 + print $ a ! 3 + print $ bounds a + print $ indices a + print $ elems a + print $ assocs a + print $ a // [(1,'w')] + print $ fmap fromEnum a + print $ ixmap (0,2) succ a + diff --git a/tests/Array.ref b/tests/Array.ref new file mode 100644 --- /dev/null +++ b/tests/Array.ref @@ -0,0 +1,14 @@ +array (1,3) [(1,'A'),(2,'b'),(3,'3')] +True +False +array (0,4) [(0,1),(1,2),(2,3),(3,4),(4,5)] +array (0,1) [(0,20),(1,15)] +'A' +'3' +(1,3) +[1,2,3] +"Ab3" +[(1,'A'),(2,'b'),(3,'3')] +array (1,3) [(1,'w'),(2,'b'),(3,'3')] +array (1,3) [(1,65),(2,98),(3,51)] +array (0,2) [(0,'A'),(1,'b'),(2,'3')] diff --git a/tests/Catch.hs b/tests/Catch.hs --- a/tests/Catch.hs +++ b/tests/Catch.hs @@ -14,11 +14,13 @@ main = do let sshow :: String -> String sshow = show - x <- catch (return ("o" ++ "k")) (\ _ -> return "what?") + exn :: SomeException -> IO String + exn e = return (displayException e) + x <- catch (return ("o" ++ "k")) (\ (_ :: SomeException) -> return "what?") putStrLn $ sshow x - y <- catch (do { error "bang!"; return "yyy" }) (\ (Exn s) -> return s) + y <- catch (do { error "bang!"; return "yyy" }) exn putStrLn $ sshow y - z <- catch (do { print (f []); return "zzz" }) (\ (Exn s) -> return s) + z <- catch (do { print (f []); return "zzz" }) exn putStrLn $ sshow z - w <- catch (do { print (m ()); return "www" }) (\ (Exn s) -> return s) + w <- catch (do { print (m ()); return "www" }) exn putStrLn $ sshow w diff --git a/tests/Catch.ref b/tests/Catch.ref --- a/tests/Catch.ref +++ b/tests/Catch.ref @@ -1,4 +1,4 @@ "ok" -"bang!" -"no match at ./Catch.hs, line 6, col 1" -"no default for C.m" +"error: bang!" +"no match at \"./Catch.hs\",6:1" +"no default for m, at \"./Catch.hs\",9:3" diff --git a/tests/Default.hs b/tests/Default.hs --- a/tests/Default.hs +++ b/tests/Default.hs @@ -1,9 +1,10 @@ module Default(main) where import Prelude -default (Int, Double) +default (Int, Double, String, ()) main :: IO () main = do print 1 print 1.5 - print [] -- defaults to Int, a little weird + print [] + print "foo" diff --git a/tests/Default.ref b/tests/Default.ref --- a/tests/Default.ref +++ b/tests/Default.ref @@ -1,3 +1,4 @@ 1 1.5 [] +"foo" diff --git a/tests/Eq1.hs b/tests/Eq1.hs new file mode 100644 --- /dev/null +++ b/tests/Eq1.hs @@ -0,0 +1,13 @@ +module Eq1 where + +class Eq1 f where + eq1 :: (Eq a) => f a -> f a -> Bool + +instance Eq1 Maybe where + eq1 = (==) + +main :: IO () +main = do + let x = Just (1::Int) + print $ eq1 x x + diff --git a/tests/Eq1.ref b/tests/Eq1.ref new file mode 100644 --- /dev/null +++ b/tests/Eq1.ref @@ -0,0 +1,1 @@ +True diff --git a/tests/Foo.hs b/tests/Foo.hs new file mode 100644 --- /dev/null +++ b/tests/Foo.hs @@ -0,0 +1,11 @@ +module Foo where + +data Exp a + = (a ~ Int) => I Int + | forall b . (a ~ b) => Iff (Exp b) + +e1 :: Exp Int +e1 = Iff (I 999) + +main :: IO () +main = print "" diff --git a/tests/ForeignPtr.hs b/tests/ForeignPtr.hs new file mode 100644 --- /dev/null +++ b/tests/ForeignPtr.hs @@ -0,0 +1,29 @@ +module ForeignPtr(main) where +import Foreign.Ptr +import Foreign.ForeignPtr +import Foreign.Storable + +gc :: IO () +gc = primitive "IO.gc" + +add :: Ptr a -> Int -> Ptr a +add = plusPtr + +sInt :: Int +sInt = sizeOf (0::Int) + +main :: IO () +main = do + fp <- mallocForeignPtrArray 2 + withForeignPtr fp $ \ p -> do + poke p (42::Int) + poke (add p sInt) (88::Int) + withForeignPtr fp $ \ p -> do + gc + peek p >>= print + peek (add p sInt) >>= print + let fp1 :: ForeignPtr Int + fp1 = plusForeignPtr fp sInt + withForeignPtr fp1 $ \ p -> do + peek p >>= print + gc diff --git a/tests/ForeignPtr.ref b/tests/ForeignPtr.ref new file mode 100644 --- /dev/null +++ b/tests/ForeignPtr.ref @@ -0,0 +1,3 @@ +42 +88 +88 diff --git a/tests/IOTest.hs b/tests/IOTest.hs --- a/tests/IOTest.hs +++ b/tests/IOTest.hs @@ -1,6 +1,7 @@ module IOTest(module IOTest) where import Prelude import System.IO as IO +import System.IO.TimeMilli import System.Environment import Debug.Trace diff --git a/tests/Interactive.hs b/tests/Interactive.hs --- a/tests/Interactive.hs +++ b/tests/Interactive.hs @@ -1,7 +1,7 @@ module Interactive(module Interactive) where import Prelude import System.IO.PrintOrRun -default (Integer, Double, String) +default (Integer, Double, String, ()) _it = 1+2 _itIO = printOrRun _it diff --git a/tests/Makefile b/tests/Makefile --- a/tests/Makefile +++ b/tests/Makefile @@ -61,6 +61,10 @@ $(TMHS) ParseInd && $(EVAL) > ParseInd.out && diff ParseInd.ref ParseInd.out $(TMHS) Infer && $(EVAL) > Infer.out && diff Infer.ref Infer.out $(TMHS) Enum && $(EVAL) > Enum.out && diff Enum.ref Enum.out + $(TMHS) RecMdl && $(EVAL) > RecMdl.out && diff RecMdl.ref RecMdl.out + $(TMHS) ForeignPtr && $(EVAL) > ForeignPtr.out && diff ForeignPtr.ref ForeignPtr.out + $(TMHS) Array && $(EVAL) > Array.out && diff Array.ref Array.out + $(TMHS) Eq1 && $(EVAL) > Eq1.out && diff Eq1.ref Eq1.out errtest: sh errtester.sh < errmsg.test diff --git a/tests/Nfib.hs b/tests/Nfib.hs --- a/tests/Nfib.hs +++ b/tests/Nfib.hs @@ -1,6 +1,5 @@ module Nfib(main, nfib) where -import Prelude -import System.IO(getTimeMilli) +import System.IO.TimeMilli(getTimeMilli) nfib :: Int -> Int nfib n = diff --git a/tests/Primes.hs b/tests/Primes.hs new file mode 100644 --- /dev/null +++ b/tests/Primes.hs @@ -0,0 +1,13 @@ +module Primes where + +primes = sieve (from 2) + where + from n = n : from (n + 1) + sieve (p : x) = p : sieve (filter x) + where + filter (n : x) = + if n `rem` p == 0 then filter x + else n : filter x + +main :: IO () +main = mapM_ print primes diff --git a/tests/RecMdl.hs b/tests/RecMdl.hs new file mode 100644 --- /dev/null +++ b/tests/RecMdl.hs @@ -0,0 +1,16 @@ +module RecMdl where +import RecMdlA + +data B = B1 | B2 A + deriving (Show) + +h :: Int -> Int +h x = x + 100 + +f :: Int -> Int +f x = g (x+1) + +main :: IO () +main = do + print (f 10) + print (B2 (A2 B1)) diff --git a/tests/RecMdl.ref b/tests/RecMdl.ref new file mode 100644 --- /dev/null +++ b/tests/RecMdl.ref @@ -0,0 +1,2 @@ +222 +B2 (A2 B1) diff --git a/tests/RecMdlA.hs b/tests/RecMdlA.hs new file mode 100644 --- /dev/null +++ b/tests/RecMdlA.hs @@ -0,0 +1,8 @@ +module RecMdlA where +import {-# SOURCE #-} RecMdl + +data A = A1 | A2 B + deriving (Show) + +g :: Int -> Int +g x = h x * 2 diff --git a/tests/TypeEq.hs b/tests/TypeEq.hs --- a/tests/TypeEq.hs +++ b/tests/TypeEq.hs @@ -23,3 +23,19 @@ main = do print (foo True) print (eval e1) + print (geval ge1) + +data GExp a where + GInt :: Int -> GExp Int + GAdd :: GExp Int -> GExp Int -> GExp Int + GEqu :: GExp Int -> GExp Int -> GExp Bool + GIff :: GExp Bool -> GExp a -> GExp a -> GExp a + +geval :: GExp a -> a +geval (GInt i) = i +geval (GAdd e1 e2) = geval e1 + geval e2 +geval (GEqu e1 e2) = geval e1 == geval e2 +geval (GIff c e1 e2) = if geval c then geval e1 else geval e2 + +ge1 :: GExp Int +ge1 = GIff (GAdd (GInt 1) (GInt 2) `GEqu` GInt 3) (GInt 1) (GInt 999) diff --git a/tests/TypeEq.ref b/tests/TypeEq.ref --- a/tests/TypeEq.ref +++ b/tests/TypeEq.ref @@ -1,2 +1,3 @@ False 1 +1