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Fix `EmissionGuarantee`
There are some problems with the `DiagCtxt` API related to `EmissionGuarantee`. This PR fixes them.
r? `@compiler-errors`
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And make all hand-written `IntoDiagnostic` impls generic, by using
`DiagnosticBuilder::new(dcx, level, ...)` instead of e.g.
`dcx.struct_err(...)`.
This means the `create_*` functions are the source of the error level.
This change will let us remove `struct_diagnostic`.
Note: `#[rustc_lint_diagnostics]` is added to `DiagnosticBuilder::new`,
it's necessary to pass diagnostics tests now that it's used in
`into_diagnostic` functions.
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(mostly in rustc_hir and rustc_ast_lowering)
Part of https://github.com/rust-lang/compiler-team/issues/533
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rustc_passes: Enforce `rustc::potential_query_instability` lint
Stop allowing `rustc::potential_query_instability` in all of `rustc_passes` and instead allow it on a case-by-case basis if it is safe. In this case, all instances of the lint are safe to allow.
Part of https://github.com/rust-lang/rust/issues/84447 which is E-help-wanted.
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Renamings:
- find -> opt_hir_node
- get -> hir_node
- find_by_def_id -> opt_hir_node_by_def_id
- get_by_def_id -> hir_node_by_def_id
Fix rebase changes using removed methods
Use `tcx.hir_node_by_def_id()` whenever possible in compiler
Fix clippy errors
Fix compiler
Apply suggestions from code review
Co-authored-by: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Add FIXME for `tcx.hir()` returned type about its removal
Simplify with with `tcx.hir_node_by_def_id`
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Stop allowing `rustc::potential_query_instability` in all of
`rustc_passes` and instead allow it on a case-by-case basis if it is
safe. In this case, all instances of the lint are safe to allow.
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Because the corresponding `Level` is `DelayedBug` and `span_delayed_bug`
follows the pattern used everywhere else: `span_err`, `span_warning`,
etc.
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Add `never_patterns` feature gate
This PR adds the feature gate and most basic parsing for the experimental `never_patterns` feature. See the tracking issue (https://github.com/rust-lang/rust/issues/118155) for details on the experiment.
`@scottmcm` has agreed to be my lang-team liaison for this experiment.
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cleanup
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Currently we always do this:
```
use rustc_fluent_macro::fluent_messages;
...
fluent_messages! { "./example.ftl" }
```
But there is no need, we can just do this everywhere:
```
rustc_fluent_macro::fluent_messages! { "./example.ftl" }
```
which is shorter.
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The `fluent_messages!` macro produces uses of
`crate::{D,Subd}iagnosticMessage`, which means that every crate using
the macro must have this import:
```
use rustc_errors::{DiagnosticMessage, SubdiagnosticMessage};
```
This commit changes the macro to instead use
`rustc_errors::{D,Subd}iagnosticMessage`, which avoids the need for the
imports.
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By default, `newtype_index!` types get a default `Encodable`/`Decodable`
impl. You can opt out of this with `custom_encodable`. Opting out is the
opposite to how Rust normally works with autogenerated (derived) impls.
This commit inverts the behaviour, replacing `custom_encodable` with
`encodable` which opts into the default `Encodable`/`Decodable` impl.
Only 23 of the 59 `newtype_index!` occurrences need `encodable`.
Even better, there were eight crates with a dependency on
`rustc_serialize` just from unused default `Encodable`/`Decodable`
impls. This commit removes that dependency from those eight crates.
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`rustc_ast_pretty` cleanups
Some improvements I found while looking at this code.
r? `@fee1-dead`
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Because the API for `with_position` improved in 0.11 and I want to use
it.
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`x clippy compiler -Aclippy::all -Wclippy::needless_borrow --fix`.
Then I had to remove a few unnecessary parens and muts that were exposed
now.
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Signed-off-by: cui fliter <imcusg@gmail.com>
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They've been deprecated for four years.
This commit includes the following changes.
- It eliminates the `rustc_plugin_impl` crate.
- It changes the language used for lints in
`compiler/rustc_driver_impl/src/lib.rs` and
`compiler/rustc_lint/src/context.rs`. External lints are now called
"loaded" lints, rather than "plugins" to avoid confusion with the old
plugins. This only has a tiny effect on the output of `-W help`.
- E0457 and E0498 are no longer used.
- E0463 is narrowed, now only relating to unfound crates, not plugins.
- The `plugin` feature was moved from "active" to "removed".
- It removes the entire plugins chapter from the unstable book.
- It removes quite a few tests, mostly all of those in
`tests/ui-fulldeps/plugin/`.
Closes #29597.
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Store #[deprecated] attribute's `since` value in parsed form
This PR implements the first followup bullet listed in https://github.com/rust-lang/rust/pull/117148#issue-1960240108.
We centralize error handling to the attribute parsing code in `compiler/rustc_attr/src/builtin.rs`, and thereby remove some awkward error codepaths from later phases of compilation that had to make sense of these #\[deprecated\] attributes, namely `compiler/rustc_passes/src/stability.rs` and `compiler/rustc_middle/src/middle/stability.rs`.
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Fix unused variables lint issue for args in macro
Fixes #117284
r? ````@estebank````
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- Sort dependencies and features sections.
- Add `tidy` markers to the sorted sections so they stay sorted.
- Remove empty `[lib`] sections.
- Remove "See more keys..." comments.
Excluded files:
- rustc_codegen_{cranelift,gcc}, because they're external.
- rustc_lexer, because it has external use.
- stable_mir, because it has external use.
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Implement `gen` blocks in the 2024 edition
Coroutines tracking issue https://github.com/rust-lang/rust/issues/43122
`gen` block tracking issue https://github.com/rust-lang/rust/issues/117078
This PR implements `gen` blocks that implement `Iterator`. Most of the logic with `async` blocks is shared, and thus I renamed various types that were referring to `async` specifically.
An example usage of `gen` blocks is
```rust
fn foo() -> impl Iterator<Item = i32> {
gen {
yield 42;
for i in 5..18 {
if i.is_even() { continue }
yield i * 2;
}
}
}
```
The limitations (to be resolved) of the implementation are listed in the tracking issue
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Tweak suggestion span for outer attr and point at item following invalid inner attr
After:
```
error: `unix_sigpipe` attribute cannot be used at crate level
--> $DIR/unix_sigpipe-crate.rs:2:1
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LL | #![unix_sigpipe = "inherit"]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL |
LL | fn main() {}
| ------------ the inner attribute doesn't annotate this function
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help: perhaps you meant to use an outer attribute
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LL - #![unix_sigpipe = "inherit"]
LL + #[unix_sigpipe = "inherit"]
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```
Before:
```
error: `unix_sigpipe` attribute cannot be used at crate level
--> $DIR/unix_sigpipe-crate.rs:2:1
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LL | #![unix_sigpipe = "inherit"]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: perhaps you meant to use an outer attribute
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LL | #[unix_sigpipe = "inherit"]
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
CC #89566.
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CC #89566.
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Make `#[repr(Rust)]` incompatible with other (non-modifier) representation hints like `C` and `simd`
Read more about this change here: https://github.com/rust-lang/rust/pull/116829#issuecomment-1768618240.
Fixes [after backport] #116825.
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