Commit 0e09b9b7 authored by simonpj's avatar simonpj
Browse files

[project @ 2003-02-05 11:41:50 by simonpj]

Wibble to TcRules (fixes HEAD breakage)
parent bce7298b
......@@ -19,7 +19,7 @@ import TcType ( tyVarsOfTypes, openTypeKind )
import TcIfaceSig ( tcCoreExpr, tcCoreLamBndrs )
import TcMonoType ( tcHsSigType, UserTypeCtxt(..), tcAddScopedTyVars )
import TcExpr ( tcMonoExpr )
import TcEnv ( tcExtendLocalValEnv, tcLookupGlobalId )
import TcEnv ( tcExtendLocalValEnv, tcLookupGlobalId, tcLookupId )
import Inst ( instToId )
import Id ( idType, mkLocalId )
import Outputable
......@@ -39,8 +39,15 @@ tcRule (IfaceRule name act vars fun args rhs src_loc)
tcCoreExpr rhs `thenM` \ rhs' ->
returnM (IfaceRuleOut fun' (Rule name act vars' args' rhs'))
tcRule (IfaceRuleOut fun rule) -- Built-in rules come this way
= tcLookupGlobalId fun `thenM` \ fun' ->
tcRule (IfaceRuleOut fun rule) -- Built-in rules, and only built-in rules,
-- come this way. Usually IfaceRuleOut is only
-- used for the *output* of the type checker
= tcLookupId fun `thenM` \ fun' ->
-- NB: tcLookupId, not tcLookupGlobalId
-- Reason: when compiling GHC.Base, where eqString is defined,
-- we'll get the builtin rule for eqString, but eqString
-- will be in the *local* type environment.
-- Seems like a bit of a hack
returnM (IfaceRuleOut fun' rule)
tcRule (HsRule name act vars lhs rhs src_loc)
......
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