Slava Pestov 0290c2d5d8 AST: Make GenericSignature and GenericEnvironment SubstitutionMaps interchangable ...

SubstitutionMap::lookupConformance() would map archetypes out
of context to compute a conformance path. Do the same thing
in SubstitutionMap::lookupSubstitution().

The DenseMap of replacement types in a SubstitutionMap now
always has GenericTypeParamTypes as keys.

This simplifies some code and brings us one step closer to
a more efficient representation of SubstitutionMaps.

2017-04-24 14:12:36 -07:00

8.9 KiB

Raw Blame History

View Raw