#1803: Include qCurrentLoc in the Quasi class
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Reporter: guest | Owner:
Type: feature request | Status: new
Priority: normal | Milestone: 6.10 branch
Component: Template Haskell | Version: 6.6.1
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Unknown |
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Comment (by guest):
I would like to point out that this, apparently not-so-useful feature, can
be crucial when using TH to create embedded languages.
Sometimes, a semantic error cannot be detected in the very same splice in
which code is generated.
By storing the exact location in which the splice was called, the embedded
compiler could later point the user to the exact origin of the error,
providing rich error reports.
Unfortunately, the lack of qCurrentLoc, makes it impossible.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1803#comment:2>
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The Glasgow Haskell Compiler
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