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This way we comply with the Coherence rule given that IntoDiagnostic trait is defined in rustc_errors, and almost all other crates depend on it.
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Enforce alphabetical sorting with tidy
We have many places where things are supposed to be sorted alphabetically. For the smaller and more recent size assertions, this is mostly upheld, but in other more... alive places it's very messy.
This introduces a new tidy directive to check that a section of code is sorted alphabetically and fixes all places where sorting has gone wrong.
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translation: eager translation
Part of #100717. See [Zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/336883-i18n/topic/.23100717.20lists!/near/295010720) for additional context.
- **Store diagnostic arguments in a `HashMap`**: Eager translation will enable subdiagnostics to be translated multiple times with different arguments - this requires the ability to replace the value of one argument with a new value, which is better suited to a `HashMap` than the previous storage, a `Vec`.
- **Add `AddToDiagnostic::add_to_diagnostic_with`**: `AddToDiagnostic::add_to_diagnostic_with` is similar to the previous `AddToDiagnostic::add_to_diagnostic` but takes a function that can be used by the caller to modify diagnostic messages originating from the subdiagnostic (such as performing translation eagerly). `add_to_diagnostic` now just calls `add_to_diagnostic_with` with an empty closure.
- **Add `DiagnosticMessage::Eager`**: Add variant of `DiagnosticMessage` for eagerly translated messages
(messages in the target language which don't need translated by the emitter during emission). Also adds `eager_subdiagnostic` function which is intended to be invoked by the diagnostic derive for subdiagnostic fields which are marked as needing eager translation.
- **Support `#[subdiagnostic(eager)]`**: Add support for `eager` argument to the `subdiagnostic` attribute which generates a call to `eager_subdiagnostic`.
- **Finish migrating `rustc_query_system`**: Using eager translation, migrate the remaining repeated cycle stack diagnostic.
- **Split formatting initialization and use in diagnostic derives**: Diagnostic derives have previously had to take special care when ordering the generated code so that fields were not used after a move.
This is unlikely for most fields because a field is either annotated with a subdiagnostic attribute and is thus likely a `Span` and copiable, or is a argument, in which case it is only used once by `set_arg`
anyway.
However, format strings for code in suggestions can result in fields being used after being moved if not ordered carefully. As a result, the derive currently puts `set_arg` calls last (just before emission), such as:
let diag = { /* create diagnostic */ };
diag.span_suggestion_with_style(
span,
fluent::crate::slug,
format!("{}", __binding_0),
Applicability::Unknown,
SuggestionStyle::ShowAlways
);
/* + other subdiagnostic additions */
diag.set_arg("foo", __binding_0);
/* + other `set_arg` calls */
diag.emit();
For eager translation, this doesn't work, as the message being translated eagerly can assume that all arguments are available - so arguments _must_ be set first.
Format strings for suggestion code are now separated into two parts - an initialization line that performs the formatting into a variable, and a usage in the subdiagnostic addition.
By separating these parts, the initialization can happen before arguments are set, preserving the desired order so that code compiles, while still enabling arguments to be set before subdiagnostics are added.
let diag = { /* create diagnostic */ };
let __code_0 = format!("{}", __binding_0);
/* + other formatting */
diag.set_arg("foo", __binding_0);
/* + other `set_arg` calls */
diag.span_suggestion_with_style(
span,
fluent::crate::slug,
__code_0,
Applicability::Unknown,
SuggestionStyle::ShowAlways
);
/* + other subdiagnostic additions */
diag.emit();
- **Remove field ordering logic in diagnostic derive:** Following the approach taken in earlier commits to separate formatting initialization from use in the subdiagnostic derive, simplify the diagnostic derive by removing the field-ordering logic that previously solved this problem.
r? ```@compiler-errors```
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Fix ICE #102878
Fixes #102878
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Add variant of `DiagnosticMessage` for eagerly translated messages
(messages in the target language which don't need translated by the
emitter during emission). Also adds `eager_subdiagnostic` function which
is intended to be invoked by the diagnostic derive for subdiagnostic
fields which are marked as needing eager translation.
Signed-off-by: David Wood <david.wood@huawei.com>
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- UPDATE - revert migration of logs
- UPDATE - use derive on LinkRlibError enum
- [Gardening] UPDATE - alphabetically sort fluent_messages
- UPDATE - use PathBuf and unify both AddNativeLibrary to use Display (which is what PathBuf uses when conforming to IntoDiagnosticArg)
- UPDATE - fluent messages sort after rebase
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ADD - migrate MissingNativeStaticLibrary fatal error
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In #102306, `rustc_typeck` was renamed to `rustc_hir_analysis` but the
diagnostic resources were not renamed - which is what this commit
changes.
Signed-off-by: David Wood <david.wood@huawei.com>
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Move lint level source explanation to the bottom
So, uhhhhh
r? `@estebank`
## User-facing change
"note: `#[warn(...)]` on by default" and such are moved to the bottom of the diagnostic:
```diff
- = note: `#[warn(unsupported_calling_conventions)]` on by default
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #87678 <https://github.com/rust-lang/rust/issues/87678>
+ = note: `#[warn(unsupported_calling_conventions)]` on by default
```
Why warning is enabled is the least important thing, so it shouldn't be the first note the user reads, IMO.
## Developer-facing change
`struct_span_lint` and similar methods have a different signature.
Before: `..., impl for<'a> FnOnce(LintDiagnosticBuilder<'a, ()>)`
After: `..., impl Into<DiagnosticMessage>, impl for<'a, 'b> FnOnce(&'b mut DiagnosticBuilder<'a, ()>) -> &'b mut DiagnosticBuilder<'a, ()>`
The reason for this is that `struct_span_lint` needs to edit the diagnostic _after_ `decorate` closure is called. This also makes lint code a little bit nicer in my opinion.
Another option is to use `impl for<'a> FnOnce(LintDiagnosticBuilder<'a, ()>) -> DiagnosticBuilder<'a, ()>` altough I don't _really_ see reasons to do `let lint = lint.build(message)` everywhere.
## Subtle problem
By moving the message outside of the closure (that may not be called if the lint is disabled) `format!(...)` is executed earlier, possibly formatting `Ty` which may call a query that trims paths that crashes the compiler if there were no warnings...
I don't think it's that big of a deal, considering that we move from `format!(...)` to `fluent` (which is lazy by-default) anyway, however this required adding a workaround which is unfortunate.
## P.S.
I'm sorry, I do not how to make this PR smaller/easier to review. Changes to the lint API affect SO MUCH 😢
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Also renames:
- sym::AddSubdiagnostic to sym:: Subdiagnostic
- rustc_diagnostic_item = "AddSubdiagnostic" to rustc_diagnostic_item = "Subdiagnostic"
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Migrate ``rustc_middle`` diagnostic
Part of #100717
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Migrate rustc_metadata to SessionDiagnostics
Migrate rustc_metadata to SessionDiagnostics.
Part of https://github.com/rust-lang/rust/issues/100717
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r=davidtwco
Porting 'compiler/rustc_trait_selection' to translatable diagnostics - Part 1
``@rustbot`` label +A-translation
r? rust-lang/diagnostics
cc #100717
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by module
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migrate rustc_query_system to use SessionDiagnostic
issues:
* variable list is not supported in fluent
* ~~cannot have two sub diagnostic with the same tag (eg. 2 .note or 2 .help)~~
allow multiple tag with SessionSubdiagnostic derive
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JhonnyBillM:migrate-symbol-mangling-to-diagnostics-structs, r=davidtwco
Migrate `symbol_mangling` module to new diagnostics structs
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r=davidtwco
translations(rustc_session): migrates `rustc_session` to use `SessionDiagnostic` - Pt. 1
## Description
This is the first PR for the migration of the module `rustc_session`. You can follow my progress [here](https://github.com/rust-lang/rust/issues/100717#issuecomment-1220279883).
The PR migrates the files `cgu_reuse_tracker` and `parse.rs` to use `SessionDiagnostic `.
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Migrate rustc_monomorphize to use SessionDiagnostic
### Description
- Migrates diagnostics in `rustc_monomorphize` to use `SessionDiagnostic`
- Adds an `impl IntoDiagnosticArg for PathBuf`
### TODO / Help!
- [x] I'm having trouble figuring out how to apply an optional note. 😕 Help!?
- Resolved. It was bad docs. Fixed in https://github.com/rust-lang/rustc-dev-guide/pull/1437/files
- [x] `errors:RecursionLimit` should be `#[fatal ...]`, but that doesn't exist so it's `#[error ...]` at the moment.
- Maybe I can switch after this is merged in? --> https://github.com/rust-lang/rust/pull/100694
- Or maybe I need to manually implement `SessionDiagnostic` instead of deriving it?
- [x] How does one go about converting an error inside of [a call to struct_span_lint_hir](https://github.com/rust-lang/rust/blob/8064a495086c2e63c0ef77e8e82fe3b9b5dc535f/compiler/rustc_monomorphize/src/collector.rs#L917-L927)?
- [x] ~What placeholder do you use in the fluent template to refer to the value in a vector? It seems like [this code](https://github.com/rust-lang/rust/blob/0b79f758c9aa6646606662a6d623a0752286cd17/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs#L83-L114) ought to have the answer (or something near it)...but I can't figure it out.~ You can't. Punted.
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with manual impl SessionDiagnostic
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infraestructure
ADD - dependencies needed to port a module to new Diagnostics infra (rustc_macros, rustc_errors, errors file, and fluent file)
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This reverts commit 326646074940222d602f3683d0559088690830f4.
This is the revert against master, the beta revert was already done in #100538.
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Migrate part of rustc_infer to session diagnostic
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r=davidtwco
Migrate rustc_driver to SessionDiagnostic
First timer noob here 👋🏽 I'm having a problem understanding how I can retrieve the span, and how to properly construct the error structs to avoid the current compilation errors.
Any help pointing me in the right direction would be much appreciated 🙌🏽
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r=davidtwco
Migrate `rustc_attr` crate diagnostics
Hi!
This is my first PR to the rustc project, excited to be part of the development! This PR is part of the diagnostics effort, to make diagnostics translatable.
`@rustbot` label +A-translation
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Migrate rustc_mir_dataflow to diagnostic structs
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Migrate `rustc_ty_utils` to `SessionDiagnostic`
I have migrated the `rustc_ty_utils` crate to use `SessionDiagnostic`, motivated by the [recent blog post about the diagnostic translation effort](https://blog.rust-lang.org/inside-rust/2022/08/16/diagnostic-effort.html).
This is my first PR to the Rust repository, so if I have missed anything, or anything needs to be changed, please let me know! 😄
`@rustbot` label +A-translation
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JeanCASPAR:migrate-ast_lowering-to-session-diagnostic, r=davidtwco
Migrate ast lowering to session diagnostic
I migrated the whole rustc_ast_lowering crate to session diagnostic *except* the for the use of `span_fatal` at /compiler/rustc_ast_lowering/src/expr.rs#L1268 because `#[fatal(...)]` is not yet supported (see https://github.com/rust-lang/rust/pull/100694).
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This commit migrates the errors that indicates an incorrect
CGU type and the fatal error that indicates that a CGU has
not been correctly recorded
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