pec-0.1: TODO

todo
- do language design doc
- do compiler architecture doc
- add qualified names
- make read only pointers
- "Show" instances
- "Eq" instances
- allow operators in export lists
- add import "as"
- add import list(?)
- make the inline Haskell code (i.e. '>') play nice with comments
- implement downward closures(?)
- properly create .ll files (i.e. with declare statements)
- implement puts that doesn't tack on a newline
- haddock'ize modules
- write more example code (project euler or language shootout)
- add -i flag to search other directories
- add c code generation
- report llvm bug
- add state machine optimization(?)
- don't rebuild files that haven't changed (unfortunately the istrings complicate things)
- add warning when _ is used as a name
- add check to ensure that variables are SSA
- add check to prevent recursion

done
- datatype: string buffer
- datatype: stack
- implement prelude/ other library functions
- generate Counts, etc. in separate files
- get test infrastructure in place
- get coverage infrastructure in place
- make Bool work in case exp (make it constructed like all the rest)
- get arrays working
- add ascription
- fix operator precedence
- add top level type declarations for functions
- make code generation easier to read/debug
- make pretty printer robust
- call external Haskell pretty-printer for generated code
- consider removing module keyword.  Decided to keep it.  That way we can process streams, not just files.
- add the ability to generate arbitrary sized integers and words (e.g. I16, W64) (add boilerplate generation to pec.hs)
- add exports
- get variants working
- get tuples working
- get records working
- added arithmetic ops
- added bitwise ops
- make top level (non-procedure) values work
- add array initializer that takes a count and a value
- implement function pointers
- take all non-essential things out of Base and put them into pec libraries
- make library implementation easier by integrating haskell code into .pec files
- create separate .ll files and cat them together
- add rebuild all flag