Commit graph

8 commits

Author SHA1 Message Date
Evan Czaplicki
67ef1ec77b Create the Type.Inference module which handles type inference from
start to finish. Give it a Module and it returns a dictionary mapping
top-level values to types.
2013-07-16 00:38:31 +02:00
Evan Czaplicki
b0387821b4 Fix error in generalization in which some variables would escape their
rank. Problem was that young variables were not all being marked as
young.

This resolved a soundness issue described in the post on
"How OCaml type checker works".
2013-07-12 11:00:35 +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
ca62ee64a9 Create type pools, have an organized model of state to flow through
the State Transformer during constraint solving and variable unification.
2013-07-09 10:25:50 +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