Implement generalised list comprehensions

[ghc-hetmet.git] / compiler / utils / Panic.lhs

diff --git a/compiler/utils/Panic.lhs b/compiler/utils/Panic.lhs
index baf1bf3..95878c4 100644 (file)
--- a/compiler/utils/Panic.lhs
+++ b/compiler/utils/Panic.lhs
@@ -135,7 +135,7 @@ Panics and asserts.
 
 \begin{code}
 panic, pgmError :: String -> a
-panic    x = Exception.throwDyn (Panic x)
+panic    x = trace ("Panic (" ++ x ++ ")") (Exception.throwDyn (Panic x))
 pgmError x = Exception.throwDyn (ProgramError x)
 
 --  #-versions because panic can't return an unboxed int, and that's