#639: Give civilised error messages when desugaring Template Haskell brackets
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Reporter: [EMAIL PROTECTED] | Owner:
Type: task | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.4.1
Severity: normal | Keywords:
Os: Unknown | Difficulty: Easy (1 hr)
Architecture: Unknown |
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DsMeta fails with a panic if it encounters something it can't desugar into
TH syntax. This is bad: the error should be civilised. But there's no
current provision for desugarer *errors*, only *warnings*.
Add errors, and perhaps promote the error/warning box into the part that
is shared between all uses of IOEnv (renamer, typechecker, desugarer)
Nothing hard, a bit tedious.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/639>
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The Glasgow Haskell Compiler
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