#4389: Unexpcted failure, ambiguous type variable defaulted (ghci)
----------------------------------+-----------------------------------------
Reporter: daniel.is.fischer | Owner:
Type: bug | Status: new
Priority: normal | Component: Test Suite
Version: 7.1 | Keywords:
Testcase: | Blockedby:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: None/Unknown
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{{{
=====> print019(ghci) 1444 of 2601 [0, 0, 0]
cd ./ghci.debugger/scripts &&
HC='/home/dafis/Haskell/Hacking/newghc/inplace/bin/ghc-stage2' HC_OPTS
='-dcore-lint -dcmm-lint -dno-debug-output -no-user-package-conf -rtsopts
-optl-lz ' '/home/dafis/Haskell/Hacking/newghc/inplace/bin/ghc-stage2'
--interactive -v0 -ignore-dot-ghci -dcore-lint -dcmm-lint -dno-debug-
output -no-user-package-conf -rtsopts -optl-lz -ignore-dot-ghci
<print019.script >print019.run.stdout 2>print019.run.stderr
Actual stderr output differs from expected:
--- ./ghci.debugger/scripts/print019.stderr.normalised 2010-10-12
20:42:15.000000000 +0200
+++ ./ghci.debugger/scripts/print019.run.stderr.normalised 2010-10-12
20:42:15.000000000 +0200
@@ -1,7 +0,0 @@
-
-<interactive>:1:1:
- Ambiguous type variable `t1' in the constraint:
- (Show t1) arising from a use of `print'
- Cannot resolve unknown runtime types: t1
- Use :print or :force to determine these types
- In a stmt of an interactive GHCi command: print it
*** unexpected failure for print019(ghci)
}}}
Unexpectedly, the type variable was resolved.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4389>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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