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* Warn if unicode bidirectional formatting characters are found in the source ↵Zubin Duggal2021-10-261-1/+57
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* Driver Rework PatchMatthew Pickering2021-06-031-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch comprises of four different but closely related ideas. The net result is fixing a large number of open issues with the driver whilst making it simpler to understand. 1. Use the hash of the source file to determine whether the source file has changed or not. This makes the recompilation checking more robust to modern build systems which are liable to copy files around changing their modification times. 2. Remove the concept of a "stable module", a stable module was one where the object file was older than the source file, and all transitive dependencies were also stable. Now we don't rely on the modification time of the source file, the notion of stability is moot. 3. Fix TH/plugin recompilation after the removal of stable modules. The TH recompilation check used to rely on stable modules. Now there is a uniform and simple way, we directly track the linkables which were loaded into the interpreter whilst compiling a module. This is an over-approximation but more robust wrt package dependencies changing. 4. Fix recompilation checking for dynamic object files. Now we actually check if the dynamic object file exists when compiling with -dynamic-too Fixes #19774 #19771 #19758 #17434 #11556 #9121 #8211 #16495 #7277 #16093
* Fully remove HsVersions.hSylvain Henry2021-05-121-2/+0
| | | | | | | | | | Replace uses of WARN macro with calls to: warnPprTrace :: Bool -> SDoc -> a -> a Remove the now unused HsVersions.h Bump haddock submodule
* Replace CPP assertions with Haskell functionsSylvain Henry2021-05-121-2/+1
| | | | | | | | | | | | | | | There is no reason to use CPP. __LINE__ and __FILE__ macros are now better replaced with GHC's CallStack. As a bonus, assert error messages now contain more information (function name, column). Here is the mapping table (HasCallStack omitted): * ASSERT: assert :: Bool -> a -> a * MASSERT: massert :: Bool -> m () * ASSERTM: assertM :: m Bool -> m () * ASSERT2: assertPpr :: Bool -> SDoc -> a -> a * MASSERT2: massertPpr :: Bool -> SDoc -> m () * ASSERTM2: assertPprM :: m Bool -> SDoc -> m ()
* Ensure assert from Control.Exception isn't usedSylvain Henry2021-05-121-2/+2
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* Don't use FastString to convert string to UTF8Matthew Pickering2021-03-031-1/+1
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* StringBuffer: Use unsafeWithForeignPtrBen Gamari2021-02-141-12/+18
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* Add the proper HLint rules and remove redundant keywords from compilerHécate2020-11-011-6/+10
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* Pass specialised utf8DecodeChar# to utf8DecodeLazy# for performanceDaniel Gröber2020-07-221-1/+1
| | | | | | | Currently we're passing a indexWord8OffAddr# type function to utf8DecodeLazy# which then passes it on to utf8DecodeChar#. By passing one of utf8DecodeCharAddr# or utf8DecodeCharByteArray# instead we benefit from the inlining and specialization already done for those.
* Use ShortByteString for FastStringDaniel Gröber2020-07-221-1/+1
| | | | | | | | | | | | | | | There are multiple reasons we want this: - Fewer allocations: ByteString has 3 fields, ShortByteString just has one. - ByteString memory is pinned: - This can cause fragmentation issues (see for example #13110) but also - makes using FastStrings in compact regions impossible. Metric Decrease: T5837 T12150 T12234 T12425
* Modules: Utils and Data (#13009)Sylvain Henry2020-04-261-0/+334
Update Haddock submodule Metric Increase: haddock.compiler
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