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  1. 26 Jan, 2018 1 commit
    • Joachim Breitner's avatar
      Turn EvTerm (almost) into CoreExpr (#14691) · 0e022e56
      Joachim Breitner authored
      Ideally, I'd like to do
      
          type EvTerm = CoreExpr
      
      and the type checker builds the evidence terms as it goes. This failed,
      becuase the evidence for `Typeable` refers to local identifiers that are
      added *after* the typechecker solves constraints. Therefore, `EvTerm`
      stays a data type with two constructors: `EvExpr` for `CoreExpr`
      evidence, and `EvTypeable` for the others.
      
      Delted `Note [Memoising typeOf]`, its reference (and presumably
      relevance) was removed in 8fa4bf9a.
      
      Differential Revision: https://phabricator.haskell.org/D4341
      0e022e56