- Jan 07, 2024
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Implements CLC proposal #154: https://github.com/haskell/core-libraries-committee/issues/154 * add unaligned addr primops * add tests * accept tests * add documentation * fix js primops * uncomment in access ops * use Word64 in tests * apply suggestions * remove extra file * move docs * remove random options * use setByteArray# primop * better naming * update base-exports test * add base-exports for other architectures
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- Jan 05, 2024
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'go' inside extractSubTerms was giving a bad result given a VoidRep, attempting to round towards the next multiple of 0. I don't understand much about the debugger but the code should be better than it was. Fixes #24306
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- Dec 31, 2023
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This reverts commit 0038d052. The atomicity bug should be fixed by !11802.
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...and generate no code for them. Fixes #24264.
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- Dec 29, 2023
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Fixes #24298
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- Dec 24, 2023
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Addresses #19278 This commit deprecates the underspecified -ddump-json flag and introduces a newer, well-specified flag -fdiagnostics-as-json. Also included is a JSON schema as part of the documentation. The -ddump-json flag will be slated for removal shortly after this merge.
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- Dec 23, 2023
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- Dec 15, 2023
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Finley McIlwaine authored
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Finley McIlwaine authored
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- Dec 14, 2023
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This marks the spurious test failures on the JS platform as js_fragile(24259), so we don't hold up merge requests while fixing the underlying issues. See #24259
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- Dec 13, 2023
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Summary of changes * Remove Language.Haskell.Syntax.Concrete * Move all tokens into GhcPs extension fields (LHsToken -> EpToken) * Create new TTG extension fields as needed * Drop the MultAnn wrapper Updates the haddock submodule. Co-authored-by:Alan Zimmerman <alan.zimm@gmail.com>
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- Dec 12, 2023
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...and use it to generate slightly better code when dataToTag# is used at a "small data type" where there is no need to mess with "is_too_big_tag" or potentially look at an info table. Metric Decrease: T18304
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- Dec 11, 2023
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Arnaud Spiwack authored
For expediency, the initial implementation of linear types in GHC made it so that let and where binders would always be considered unrestricted. This was rather unpleasant, and probably a big obstacle to adoption. At any rate, this was not how the proposal was designed. This patch fixes this infelicity. It was surprisingly difficult to build, which explains, in part, why it took so long to materialise. As of this patch, let or where bindings marked with %1 will be linear (respectively %p for an arbitrary multiplicity p). Unmarked let will infer their multiplicity. Here is a prototypical example of program that used to be rejected and is accepted with this patch: ```haskell f :: A %1 -> B g :: B %1 -> C h :: A %1 -> C h x = g y where y = f x ``` Exceptions: - Recursive let are unrestricted, as there isn't a clear semantics of what a linear recursive binding would be. - Destructive lets with lazy bindings are unrestricted, as their desugaring isn't linear (see also #23461). - (Strict) destructive lets with inferred polymorphic type are unrestricted. Because the desugaring isn't linear (See #18461 down-thread). Closes #18461 and #18739 Co-authored-by: @jackohughes -
Arnaud Spiwack authored
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Before this change, GHC used to accept `forall` as a term-level identifier: -- from constraints-0.13 forall :: forall p. (forall a. Dict (p a)) -> Dict (Forall p) forall d = ... Now it is a parse error. The -Wforall-identifier warning has served its purpose and is now a deprecated no-op.
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- Dec 08, 2023
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Add test case for bug #24224
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This patch does two things, to fix #23209: * It improves SpecConstr so that it no longer quantifies over coercion variables. See Note [SpecConstr and casts] * It improves the rule matcher to deal nicely with the case where the rule does not quantify over coercion variables, but the the template has a cast in it. See Note [Casts in the template]
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This partially fixes #24229. See the new Note [Pattern duplicate elimination] in SpecConstr
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- Dec 06, 2023
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See the new `Note [Dead code may contain type confusions]`. Fixes #23862.
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Before, the source location would point at the surrounding function definition, causing the confusion in #24234. I also took the opportunity to introduce a new `LazyPatCtx :: HsMatchContext _` to make the warning message say "irrefutable pattern" instead of "pattern binding".
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This patch implements the T2T (term-to-type) transformation in patterns. Patterns that are checked against a visible forall can now be written without the `type` keyword: \(type t) (x :: t) -> ... -- old \t (x :: t) -> ... -- new The `t` binder is parsed and renamed as a term pattern (Pat), but then undergoes a conversion to a type pattern (HsTyPat). See the new function pat_to_type_pat in compiler/GHC/Tc/Gen/Pat.hs
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Previously, when running `ghci -e ':add Sample.hs'` the process would exit with exit code 1 if the file exists and could be loaded. Fixes #24115
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- Dec 03, 2023
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I accidentally left a trace in the generics metric patch.
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For consistency it's better if we track all size metrics in bytes. Metric Increase: libdir
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cee81370 recently added a test which failed on deb9 because the version of make was emitting the recipe failure to stdout rather than stderr. One way to fix this is to be more precise in the test about which part of the output we care about inspecting.
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- Nov 30, 2023
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We now require that in 'forall a -> ty', ty has kind TYPE r for some r. Fixes #24176
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EpaLocation is used to position things. It has two constructors, EpaSpan holding a SrcSpan, and EpaDelta with a delta position and a possible list of comments. The comment list is needed because the location in EpaDelta has no absolute information to decide which comments should be emitted before them when printing. But it is also used for specifying the position of a comment. To prevent the absurdity of a comment position having a list of comments in it, we make EpaLocation parameterisable, using comments for the normal case and a constant for within comments. Updates haddock submodule. aarch64-darwin Metric Decrease: MultiLayerModulesTH_OneShot -
And additionally to T12545, link from T8095, T13386 to this new Note.
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- Nov 29, 2023
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af881674 shows that the libdir size can fluctuate quite significantly even when the change is quite small. Therefore we widen the acceptance window to 10%.
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