#2542: runghc does not infer module file extensions
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Reporter: judah | Owner:
Type: bug | Status: new
Priority: high | Milestone: 6.10.1
Component: Compiler | Version: 6.8.3
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Unknown |
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Comment (by claus):
(aside: would either `runhaskell Main` or adding `module Setup where`
work?)
The first two cases sound right overall, but note that they already differ
in strictness of checking:
- via module name, the file name has to match
- via file name, the module name doesn't need to match.
It would make more sense to have matching behaviour determined
independently of the route, but the module-name route depends on strict
matches to find the file (or ghc would have to check all sources for
matching module names).
We could still have a flag `ModuleFileNameMatch`, but it wouldn't buy
much.
The problem arises from `Setup.[l]hs` '''not''' having a module name,
combined with the default being `Main`, which was meant to make finding
and running `Main.main` in non-module code possible, while Cabal wants to
find and run `Setup.main` in non-module code.
Could we simply change the default module name?
- if the filename is a module name, `File.[l]hs` introduces module `File`
(and module `Main`, if we still need that?)
- if there is an explicit module name, it has to match the file name or
be `Main`
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2542#comment:9>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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