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| author | Roland Senn <rsx@bluewin.ch> | 2020-03-14 17:33:02 +0100 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2020-03-25 14:45:04 -0400 |
| commit | 703221f408b023a1b3433938572e7b5c24b4af60 (patch) | |
| tree | 505a0b419f288b73d2034e96d4b7f398a7488733 /testsuite/README.md | |
| parent | 2643ba465cd2a133b6f495f34fc59cd1a6d23525 (diff) | |
| download | haskell-703221f408b023a1b3433938572e7b5c24b4af60.tar.gz | |
Use export list of Main module in function TcRnDriver.hs:check_main (Fix #16453)
- Provide the export list of the `Main` module as parameter to the
`compiler/typecheck/TcRnDriver.hs:check_main` function.
- Instead of `lookupOccRn_maybe` call the function `lookupInfoOccRn`.
It returns the list `mains_all` of all the main functions in scope.
- Select from this list `mains_all` all `main` functions that are in
the export list of the `Main` module.
- If this new list contains exactly one single `main` function, then
typechecking continues.
- Otherwise issue an appropriate error message.
Diffstat (limited to 'testsuite/README.md')
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