Commit dad6a886 authored by Ben Gamari's avatar Ben Gamari Committed by Ben Gamari
Browse files

LoadIFace: Show known names on inconsistent interface file

Reviewers: austin

Subscribers: simonpj, ezyang, thomie

Differential Revision:
parent 043604c7
......@@ -138,7 +138,7 @@ importDecl name
{ eps <- getEps
; case lookupTypeEnv (eps_PTE eps) name of
Just thing -> return (Succeeded thing)
Nothing -> return (Failed not_found_msg)
Nothing -> return $ Failed (ifPprDebug (found_things_msg eps) $$ not_found_msg)
nd_doc = text "Need decl for" <+> ppr name
......@@ -146,6 +146,11 @@ importDecl name
pprNameSpace (occNameSpace (nameOccName name)) <+> ppr name)
2 (vcat [text "Probable cause: bug in .hi-boot file, or inconsistent .hi file",
text "Use -ddump-if-trace to get an idea of which file caused the error"])
found_things_msg eps =
hang (text "Found the following declarations in" <+> ppr (nameModule name) <> colon)
2 (vcat (map ppr $ filter is_interesting $ nameEnvElts $ eps_PTE eps))
is_interesting thing = nameModule name == nameModule (getName thing)
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