#5917: Don't defer type errors when evaluating a GHCi expression
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Reporter: parcs | Owner:
Type: feature request | Status: closed
Priority: normal | Milestone:
Component: GHCi | Version: 7.5
Resolution: fixed | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Difficulty: Unknown
Testcase: | Blockedby:
Blocking: | Related:
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Changes (by simonpj):
* status: new => closed
* difficulty: => Unknown
* resolution: => fixed
Comment:
Good idea thanks
{{{
commit 301a718b8f9dd50d91bd03bbd2c3efa28ad203fd
Author: Patrick Palka <[email protected]>
Date: Tue Mar 6 19:27:40 2012 -0500
Don't defer type errors when evaluating a GHCi expression
It is unhelpful here because the expression will get evaluated right
away anyway, thus emitting a redundant warning followed by an
equivalent
runtime exception. If the expression were an ill-typed pure
expression,
_three_ equivalent type errors would get emitted (due to the two-phase
typechecking done in 'Plan C')
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5917#comment:1>
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