-tcRules :: [RenamedRuleDecl] -> TcM [TypecheckedRuleDecl]
-tcRules decls = mappM tcRule decls
-
-tcRule :: RenamedRuleDecl -> TcM TypecheckedRuleDecl
-tcRule (IfaceRule name act vars fun args rhs src_loc)
- = addSrcLoc src_loc $
- addErrCtxt (ruleCtxt name) $
- tcLookupGlobalId fun `thenM` \ fun' ->
- tcCoreLamBndrs vars $ \ vars' ->
- mappM tcCoreExpr args `thenM` \ args' ->
- tcCoreExpr rhs `thenM` \ rhs' ->
- returnM (IfaceRuleOut fun' (Rule name act vars' args' rhs'))
-
-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)
- = addSrcLoc src_loc $
- addErrCtxt (ruleCtxt name) $
- newTyVarTy openTypeKind `thenM` \ rule_ty ->