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rust_ast::ast => rustc_ast
Rework of #71199 which is a rework #70621
Still working on this but just made the PR to track progress
r? @Dylan-DPC
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This commit implements support for `QPath::LangItem` and
`GenericBound::LangItemTrait` in save analysis.
Signed-off-by: David Wood <david@davidtw.co>
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This commit introduces `QPath::LangItem` to the HIR and uses it in AST
lowering instead of constructing a `hir::Path` from a slice of symbols.
This might be better for performance, but is also much cleaner as the
previous approach is fragile. In addition, it resolves a bug (#61019)
where an extern crate imported as "std" would result in the paths
created during AST lowering being resolved incorrectly (or not at all).
Co-authored-by: Matthew Jasper <mjjasper1@gmail.com>
Signed-off-by: David Wood <david@davidtw.co>
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Remove `librustc_ast` session globals
By moving the data onto `Session`.
r? @petrochenkov
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By moving `{known,used}_attrs` from `SessionGlobals` to `Session`. This
means they are accessed via the `Session`, rather than via TLS. A few
`Attr` methods and `librustc_ast` functions are now methods of
`Session`.
All of this required passing a `Session` to lots of functions that didn't
already have one. Some of these functions also had arguments removed, because
those arguments could be accessed directly via the `Session` argument.
`contains_feature_attr()` was dead, and is removed.
Some functions were moved from `librustc_ast` elsewhere because they now need
to access `Session`, which isn't available in that crate.
- `entry_point_type()` --> `librustc_builtin_macros`
- `global_allocator_spans()` --> `librustc_metadata`
- `is_proc_macro_attr()` --> `Session`
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Beautify all doc strings in rustdoc instead, including those in `#[doc]` attributes
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Explicitly store their kind and style retrieved during lexing in the token
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For consistency with `Attribute::has_name` which doesn't mark the attribute as used either.
Replace all uses of `check_name` with `has_name` outside of rustc
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Rename TypeckTables to TypeckResults.
Originally suggested by @eddyb.
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In various ways, such as changing functions to take a `Symbol` instead
of a `&str`.
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Fixes #61385
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Clean up type alias impl trait implementation
- Removes special case for top-level impl trait
- Removes associated opaque types
- Forbid lifetime elision in let position impl trait. This is consistent with the behavior for inferred types.
- Handle lifetimes in type alias impl trait more uniformly with other parameters
cc #69323
cc #63063
Closes #57188
Closes #62988
Closes #69136
Closes #73061
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Migrate to numeric associated consts
The deprecation PR is #72885
cc #68490
cc rust-lang/rfcs#2700
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They're unused now.
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Fixes #61302
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make Map::def_kind take LocalDefId
Co-Authored-By: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
crates are DefKind::Mod
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opt_local_def_id_from_node_id
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use is_empty() instead of len comparison (clippy::len_zero)
use if let instead of while let loop that never loops (clippy::never_loop)
remove redundant returns (clippy::needless_return)
remove redundant closures (clippy::redundant_closure)
use if let instead of match and wildcard pattern (clippy::single_match)
don't repeat field names redundantly (clippy::redundant_field_names)
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Refactorings to get rid of rustc_codegen_utils
r? @eddyb
cc #45276
After this, the only modules left in `rustc_codegen_utils` are
- `link`: a bunch of linking-related functions (many dealing with file names). These are mostly consumed by save analysis, rustc_driver, rustc_interface, and of course codegen. I assume they live here because we don't want a dependency of save analysis on codegen... Perhaps they can be moved to librustc?
- ~`symbol_names` and `symbol_names_test`: honestly it seems odd that `symbol_names_test` is not a submodule of `symbol_names`. It seems like these could honestly live in their own crate or move to librustc. Already name mangling is exported as the `symbol_name` query.~ (move it to its own crate)
I don't mind doing either of the above as part of this PR or a followup if you want.
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rustc_metadata: Remove `rmeta::MacroDef`
And other related cleanups.
Follow-up to https://github.com/rust-lang/rust/pull/66364.
r? @Centril
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