ast-monad (empty) → 0.1.0.0

raw patch · 6 files changed

+142/−0 lines, 6 filesdep +ast-monaddep +basesetup-changed

Dependencies added: ast-monad, base

Files

LICENSE +30/−0
README.md +3/−0
Setup.hs +2/−0
ast-monad.cabal +33/−0
src/Language/ASTMonad.hs +72/−0
test/Spec.hs +2/−0

+ LICENSE view

@@ -0,0 +1,30 @@+Copyright Masato Mouri (c) 2017++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of Masato Mouri nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ README.md view

@@ -0,0 +1,3 @@+# ast-monad+A library for constructing AST by using do-notation+

+ Setup.hs view

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

+ ast-monad.cabal view

@@ -0,0 +1,33 @@+name:                ast-monad+version:             0.1.0.0+synopsis:            A library for constructing AST by using do-notation+-- description:+homepage:            https://github.com/mkdag/ast-monad#readme+license:             BSD3+license-file:        LICENSE+author:              Masato Mouri+maintainer:          mkdagjp@gmail.com+copyright:           2017 Masato Mouri+category:            Language+build-type:          Simple+extra-source-files:  README.md+cabal-version:       >=1.10++library+  hs-source-dirs:      src+  exposed-modules:     Language.ASTMonad+  build-depends:       base >= 4.7 && < 5+  default-language:    Haskell2010++test-suite ast-monad-test+  type:                exitcode-stdio-1.0+  hs-source-dirs:      test+  main-is:             Spec.hs+  build-depends:       base+                     , ast-monad+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N+  default-language:    Haskell2010++source-repository head+  type:     git+  location: https://github.com/mkdag/ast-monad

+ src/Language/ASTMonad.hs view

@@ -0,0 +1,72 @@+{-# LANGUAGE GADTs #-}+module Language.ASTMonad+  ( Code(..)+  , CodeSeq(..)+  , ASTM(..)+  , fromCodeSeq+  , toCodeSeq+  , getParam+  , getEnv+  , putEnv+  , modifyEnv+  , buildAST+  , fromCode+  , fromCode'+  ) where++import Data.Monoid++data Code s = Code s (CodeSeq s)+newtype CodeSeq s = CodeSeq { getCodeSeq :: [Code s] -> [Code s] }++instance Monoid (CodeSeq s) where+  mempty = CodeSeq $ \xs -> [] ++ xs+  mappend (CodeSeq f) (CodeSeq g) = CodeSeq $ f . g++fromCodeSeq :: CodeSeq s -> [Code s]+fromCodeSeq (CodeSeq f) = f []++toCodeSeq :: [Code s] -> CodeSeq s+toCodeSeq xs = CodeSeq $ \ys -> xs ++ ys++newtype ASTM p s e a = ASTM { runASTM :: p -> e -> (a, e, CodeSeq s) }++instance Functor (ASTM p s e) where+  fmap f (ASTM rA) = ASTM $ \p e -> case rA p e of+                                      (a', e', cs') -> (f a', e', cs')++instance Applicative (ASTM p s e) where+  pure x = ASTM $ \p e -> (x, e, mempty)+  (<*>) (ASTM rA) (ASTM rA') = ASTM $ \p e -> case rA p e of+                                                (f', e', cs') -> case rA' p e' of+                                                                   (a'', e'', cs'') -> (f' a'', e'', cs' <> cs'')++instance Monad (ASTM p s e) where+  (>>=) (ASTM rA) f = ASTM $ \p e -> case rA p e of+                                       (a', e', cs') -> case f a' of+                                                          ASTM rA' -> case rA' p e' of+                                                                       (b'', e'', cs'') -> (b'', e'', cs' <> cs'')+                                                                                       +getParam :: (p -> a) -> ASTM p s e a+getParam f = ASTM $ \p e -> (f p, e, mempty)++getEnv :: ASTM p s e e+getEnv = ASTM $ \p e -> (e, e, mempty)++putEnv :: e -> ASTM p s e ()+putEnv e = ASTM $ \p e -> ((), e, mempty)++modifyEnv :: (e -> e) -> ASTM p s e ()+modifyEnv f = ASTM $ \p e -> ((), f e, mempty)++buildAST :: ASTM p s e () -> p -> e -> (e, CodeSeq s)+buildAST (ASTM x) p e = case x p e of+                       (_,e',z) -> (e', z)++fromCode :: (p -> e -> (e, s)) -> ASTM p s e ()+fromCode f = ASTM $ \p e -> let (e', s') = f p e in ((), e', toCodeSeq [Code s' mempty])++fromCode' :: ASTM p s e () -> (p -> e -> (e, s)) -> ASTM p s e ()+fromCode' b f = ASTM $ \p e -> let (e', s') = f p e+                                   (e'', cs'') = buildAST b p e'+                               in ((), e'', toCodeSeq [Code s' cs''])

+ test/Spec.hs view

@@ -0,0 +1,2 @@+main :: IO ()+main = putStrLn "Test suite not yet implemented"