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The inl_inline field of the InlinePragma record is modified to store pragma
source text by adding a data constructor of type SourceText. This can help in
tracking the actual text of pragma names.
Add/modify functions, modify type instance for InlineSpec type
Modify parser, lexer to handle InlineSpec constructors containing SourceText
Modify functions with InlineSpec type
Extract pragma source from InlineSpec for SpecSig, InlineSig types
Modify cvtInline function to add SourceText to InlineSpec type
Extract name for InlineSig, SpecSig from pragma, SpectInstSig from source (fixes #18138)
Extract pragma name for SpecPrag pragma, SpecSig signature
Add Haddock annotation for inlinePragmaName function
Add Haddock annotations for using helper functions in hsSigDoc
Remove redundant ppr in pragma name for SpecSig, InlineSig; update comment
Rename test to T18138 for misplaced SPECIALIZE pragma testcase
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- Change the names of the fields in in `data FieldOcc`
- Renames `HsRecFld` to `HsRecSel`
- Replace `AmbiguousFieldOcc p` in `HsRecSel` with `FieldOcc p`
- Contains a haddock submodule update
The primary motivation of this change is to remove
`AmbiguousFieldOcc`. This is one of a suite of changes improving how
record syntax (most notably record update syntax) is represented in
the AST.
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In comments, and notes.
Follow-up from !2418, see #19579
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This commit adds the `lint:compiler` Hadrian target to the CI runner.
It does also fixes hints in the compiler/ and libraries/base/ codebases.
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Metric Increase:
MultiLayerModules
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----------------
What:
There are two splits.
The first spit is:
- `Language.Haskell.Syntax.Extension`
- `GHC.Hs.Extension`
where the former now just contains helpers like `NoExtCon` and all the
families, and the latter is everything having to do with `GhcPass`.
The second split is:
- `Language.Haskell.Syntax.<mod>`
- `GHC.Hs.<mod>`
Where the former contains all the data definitions, and the few helpers
that don't use `GhcPass`, and the latter contains everything else. The
second modules also reexport the former.
----------------
Why:
See the issue for more details, but in short answer is we're trying to
grasp at the modularity TTG is supposed to offer, after a long time of
mainly just getting the safety benefits of more complete pattern
matching on the AST.
Now, we have an AST datatype which, without `GhcPass` is decently
stripped of GHC-specific concerns. Whereas before, not was it
GHC-specific, it was aware of all the GHC phases despite the
parameterization, with the instances and parametric data structure
side-by-side.
For what it's worth there are also some smaller, imminent benefits:
- The latter change also splits a strongly connected component in two,
since none of the `Language.Haskell.Syntax.*` modules import the older
ones.
- A few TTG violations (Using GhcPass directly in the AST) in `Expr` are
now more explicitly accounted for with new type families to provide the
necessary indirection.
-----------------
Future work:
- I don't see why all the type families should live in
`Language.Haskell.Syntax.Extension`. That seems anti-modular for
little benefit. All the ones used just once can be moved next to the
AST type they serve as an extension point for.
- Decide what to do with the `Outputable` instances. Some of these are
no orphans because they referred to `GhcPass`, and had to be moved. I
think the types could be generalized so they don't refer to `GhcPass`
and therefore can be moved back, but having gotten flak for increasing
the size and complexity types when generalizing before, I did *not*
want to do this.
- We should triage the remaining contents of `GHC.Hs.<mod>`. The
renaming helpers are somewhat odd for needing `GhcPass`. We might
consider if they are a) in fact only needed by one phase b) can be
generalized to be non-GhcPass-specific (e.g. take a callback rather
than GADT-match with `IsPass`) and then they can live in
`Language.Haskell.Syntax.<mod>`.
For more details, see
https://gitlab.haskell.org/ghc/ghc/-/wikis/implementing-trees-that-grow
Bumps Haddock submodule
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