Commit graph

11 commits

Author SHA1 Message Date
Evan Czaplicki
4d7562f317 Begin generating constraints for whole programs. Need to perform
dependency sort within let-expressions for things to work properly though.
2013-07-12 16:21:07 +02:00
Evan Czaplicki
4208b5c9de Remove some debugging stuff and generally clean up the code.
There was one potential error in which a debug needed to be a liftIO,
the computation it performed was not optional.
2013-07-12 11:05:03 +02:00
Evan Czaplicki
ca77056fc9 Improve quality of error messages. 2013-07-11 00:31:56 +02:00
Evan Czaplicki
b5887f41c9 Get type inference working in the basic case. Begin working on
printing errors in a prettier way.
2013-07-10 14:31:57 +02:00
Evan Czaplicki
497d478d26 Get the solver working on basic programs. It outputs pretty types for the
variables in the program. Need to test further and start doing some benchmarking.
2013-07-09 21:52:05 +02:00
Evan Czaplicki
2ef18826de Start adding constraint generation for declarations. 2013-07-08 18:23:18 +02:00
Evan Czaplicki
0ed72056b6 Add pretty printing for type constraints.
Convert source-syntax types into type-checker types and print them
with pretty type variables.

Generate constraints for let-expressions using type annotations.

Build test function to turn strings into type constraints.
2013-07-08 16:47:44 +02:00
Evan Czaplicki
b87b84556c Move the Environment.hs and Fragment.hs files down a directory. 2013-07-07 12:54:05 +02:00
Evan Czaplicki
ca8441ff2f Continue getting the new type-checker in order. 2013-07-07 12:52:48 +02:00
Evan Czaplicki
351c33c486 Start generating constraints for let-expressions. Account for mutual recursion,
but will throw a runtime error if a user has given type annotations.
2013-07-03 19:51:38 +02:00
Evan Czaplicki
cdb63bd8d1 Start writing a new type checker based on the ATAPL chapter on efficient type-inference. 2013-07-03 14:35:51 +02:00