#5971: Referencing a newName in a VarE without definition triggers "the
impossible
happened"
--------------------------------+-------------------------------------------
Reporter: josh | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.4.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Compile-time crash | Testcase:
Blockedby: | Blocking:
Related: |
--------------------------------+-------------------------------------------
Comment(by simonpj@…):
commit cb5a3f2d66e4dac2f6f44f56e365d18df884c943
{{{
Author: Simon Peyton Jones <[email protected]>
Date: Wed Mar 28 09:57:57 2012 +0100
Make the LocalRdrEnv keep track of all the Names that are in scope
This allows us to give a sensible error message when a Template
Haskell
splice generates an occurrence without a binding site.
Fixes Trac #5959 and #5971
compiler/basicTypes/Name.lhs | 2 +-
compiler/basicTypes/RdrName.lhs | 36
+++++++++++++++++++++++++-----------
compiler/rename/RnEnv.lhs | 25 ++++++++++++++++++++++---
compiler/rename/RnNames.lhs | 6 +++---
compiler/rename/RnTypes.lhs | 2 +-
5 files changed, 52 insertions(+), 19 deletions(-)
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5971#comment:1>
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