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Print a more helpful error for find_thing
[ghc-hetmet.git]
/
compiler
/
typecheck
/
TcEnv.lhs
diff --git
a/compiler/typecheck/TcEnv.lhs
b/compiler/typecheck/TcEnv.lhs
index
388828e
..
c5d65c2
100644
(file)
--- a/
compiler/typecheck/TcEnv.lhs
+++ b/
compiler/typecheck/TcEnv.lhs
@@
-390,6
+390,8
@@
find_thing ignore_it tidy_env (ATyVar tv ty)
bound_at = parens $ ptext SLIT("bound at:") <+> ppr (getSrcLoc tv)
in
returnM (tidy_env1, Just msg)
+
+find_thing _ _ thing = pprPanic "find_thing" (ppr thing)
\end{code}
\begin{code}