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This avoids a rare rustdoc bug where loading `core` twice caused a
'cannot find a built-in macro' error:
1. `x.py build --stage 1` builds the standard library and creates a sysroot
2. `cargo doc` does something like `cargo check` to create `rmeta`s for all the crates (unrelated to what was built above)
3. the `cargo check`-like `libcore-*.rmeta` is loaded as a transitive dependency *and claims ownership* of builtin macros
4. `rustdoc` later tries to resolve some path in a doc link
5. suggestion logic fires and loads "extern prelude" crates by name
6. the sysroot `libcore-*.rlib` is loaded and *fails to claim ownership* of builtin macros
This fixes step 5. by not running suggestion logic if this is a
speculative resolution. Additionally, it marks `resolve_ast_path` as a
speculative resolution.
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- Consider the implicit prelude as well
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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 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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- Accept DefId in resolve_str_path_error
This will probably break lots of internal invariants.
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In various ways, such as changing functions to take a `Symbol` instead
of a `&str`.
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Avoid "blacklist"
Other terms are more inclusive and precise.
Clippy still has a lint named "blacklisted-name", but renaming it would
be a breaking change, so is left for future work.
The target configuration option "abi-blacklist" has been depreciated and
renamed to "unsupported-abis". The old name continues to work.
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Other terms are more inclusive and precise.
Clippy still has a lint named "blacklisted-name", but renaming it would
be a breaking change, so is left for future work.
The target configuration option "abi-blacklist" has been depreciated and
renamed to "unsupported-abis". The old name continues to work.
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This commit modifies resolve to disallow `break`/`continue` to labels
through closures or async blocks. This doesn't make sense and should
have been prohibited anyway.
Signed-off-by: David Wood <david@davidtw.co>
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Add re-exports to use suggestions
In the following example, an inaccessible path is suggested via `use foo::bar::X;` whereas an accessible public exported path can be suggested instead.
```rust
mod foo {
mod bar {
pub struct X;
}
pub use self::bar::X;
}
fn main() { X; }
```
This fixes the issue.
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In the following example, an inaccessible path is suggested via
`use foo::bar::X;` whereas an accessible public exported path can
be suggested instead.
```
mod foo {
mod bar {
pub struct X;
}
pub use self::bar::X;
}
fn main() { X; }
```
This fixes the issue.
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Use `LocalDefId` for import IDs in trait map
cc https://github.com/rust-lang/rust/pull/73291#discussion_r439734867
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Make new type param suggestion more targetted
Do not suggest new type param when encountering a missing type in an ADT
field with generic parameters.
Fix #72640.
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Do not suggest new type param when encountering a missing type in an ADT
field with generic parameters.
Fix #72640.
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resolve: Do not suggest imports from the same module in which we are resolving
Based on the idea from https://github.com/rust-lang/rust/pull/72623.
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This is to avoid the final conversion from `NodeId` to `HirId`
during call to `Resolver::(clone|into)_outputs`.
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Rename all remaining compiler crates to use the `rustc_foo` pattern
libarena -> librustc_arena
libfmt_macros -> librustc_parse_format
libgraphviz -> librustc_graphviz
libserialize -> librustc_serialize
Closes https://github.com/rust-lang/rust/issues/71177 in particular.
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This commit also include the following changes:
* Remove unused `hir::Map::as_local_node_id` method
* Remove outdated comment about `hir::Map::local_def_id` method
* Remove confusing `GlobMap` type alias
* Use `LocalDefId` instead of `DefId` in `extern_crate_map`
* Use `LocalDefId` instead of `DefId` in `maybe_unused_extern_crates`
* Modify `extern_mod_stmt_cnum` query to accept a `LocalDefId` instead of a `DefId`
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Remove all uses of `NodeId` in `ResolverOutputs`
cc #50928
r? @ecstatic-morse
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We store store the `DefId` directly in `ExpnData`. This will allow us to
serialize `ExpnData` in PR #72121 without needing to manage a side
table.
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`Copy` types
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