#7276: -fdefer-type-errors allows the types of quotations to be coerced, causing
segmentation fault
--------------------------------+-------------------------------------------
Reporter: parcs | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.6.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: Compile-time crash | Testcase:
Blockedby: | Blocking:
Related: |
--------------------------------+-------------------------------------------
`-fdefer-type-errors` allows the type of a quotation to be coerced into
another quotation type. This allows e.g. a declaration quotation to be
used in a place where an expression quotation is expected, which results
in a compile-time segmentation fault.
The following GHCi script demonstrates the issue:
{{{
:set -fdefer-type-errors
:set -XTemplateHaskell
$([d|a = ()|])
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7276>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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