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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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Migrate half of the `rustc_passes::check_attr` diagnostics to using
diagnostic derives and being translatable.
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Signed-off-by: David Wood <david.wood@huawei.com>
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Signed-off-by: David Wood <david.wood@huawei.com>
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Now that typed identifiers are used in both derives, constructors for
the `DiagnosticMessage` and `SubdiagnosticMessage` types are not
required.
Signed-off-by: David Wood <david.wood@huawei.com>
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As in the diagnostic derive, using typed identifiers in the
subdiagnostic derive improves the diagnostics of using the subdiagnostic
derive as Fluent messages will be confirmed to exist at compile-time.
Signed-off-by: David Wood <david.wood@huawei.com>
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Stabilize `Path::try_exists()` and improve doc
This stabilizes the `Path::try_exists()` method which returns
`Result<bool, io::Error>` instead of `bool` allowing handling of errors
unrelated to the file not existing. (e.g permission errors)
Along with the stabilization it also:
* Warns that the `exists()` method is error-prone and suggests to use
the newly stabilized one.
* Suggests it instead of `metadata()` to handle errors.
* Mentions TOCTOU bugs to avoid false assumption that `try_exists()` is
completely safe fixed version of `exists()`.
* Renames the feature of still-unstable `std::fs::try_exists()` to
`fs_try_exists` to avoid name conflict.
The tracking issue #83186 remains open to track `fs_try_exists`.
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This stabilizes the `Path::try_exists()` method which returns
`Result<bool, io::Error>` instead of `bool` allowing handling of errors
unrelated to the file not existing. (e.g permission errors)
Along with the stabilization it also:
* Warns that the `exists()` method is error-prone and suggests to use
the newly stabilized one.
* Suggests it instead of `metadata()` to handle errors.
* Mentions TOCTOU bugs to avoid false assumption that `try_exists()` is
completely safe fixed version of `exists()`.
* Renames the feature of still-unstable `std::fs::try_exists()` to
`fs_try_exists` to avoid name conflict.
The tracking issue #83186 remains open to track `fs_try_exists`.
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Introduce allow-by-default lints for checking whether diagnostics are
written in `SessionDiagnostic`/`AddSubdiagnostic` impls and whether
diagnostics are translatable. These lints can be denied for modules once
they are fully migrated to impls and translation.
Signed-off-by: David Wood <david.wood@huawei.com>
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To render the message of a Fluent attribute, the identifier of the
Fluent message must be known. `DiagnosticMessage::FluentIdentifier`
contains both the message's identifier and optionally the identifier of
an attribute. Generated constants for each attribute would therefore
need to be named uniquely (amongst all error messages) or be able to
refer to only the attribute identifier which will be combined with a
message identifier later. In this commit, the latter strategy is
implemented as part of the `Diagnostic` type's functions for adding
subdiagnostics of various kinds.
Signed-off-by: David Wood <david.wood@huawei.com>
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Adds a new `fluent_messages` macro which performs compile-time
validation of the compiler's Fluent resources (i.e. that the resources
parse and don't multiply define the same messages) and generates
constants that make using those messages in diagnostics more ergonomic.
For example, given the following invocation of the macro..
```ignore (rust)
fluent_messages! {
typeck => "./typeck.ftl",
}
```
..where `typeck.ftl` has the following contents..
```fluent
typeck-field-multiply-specified-in-initializer =
field `{$ident}` specified more than once
.label = used more than once
.label-previous-use = first use of `{$ident}`
```
...then the macro parse the Fluent resource, emitting a diagnostic if it
fails to do so, and will generate the following code:
```ignore (rust)
pub static DEFAULT_LOCALE_RESOURCES: &'static [&'static str] = &[
include_str!("./typeck.ftl"),
];
mod fluent_generated {
mod typeck {
pub const field_multiply_specified_in_initializer: DiagnosticMessage =
DiagnosticMessage::fluent("typeck-field-multiply-specified-in-initializer");
pub const field_multiply_specified_in_initializer_label_previous_use: DiagnosticMessage =
DiagnosticMessage::fluent_attr(
"typeck-field-multiply-specified-in-initializer",
"previous-use-label"
);
}
}
```
When emitting a diagnostic, the generated constants can be used as
follows:
```ignore (rust)
let mut err = sess.struct_span_err(
span,
fluent::typeck::field_multiply_specified_in_initializer
);
err.span_default_label(span);
err.span_label(
previous_use_span,
fluent::typeck::field_multiply_specified_in_initializer_label_previous_use
);
err.emit();
```
Signed-off-by: David Wood <david.wood@huawei.com>
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Refactor loop into iterator; simplify negation logic.
is_dummy should return when a non-dummy is found, but instead is iterated until completion. With some inspiration from line 323 this was refactored to a single line that returns once a single counterexample is found.
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Co-authored-by: Janusz Marcinkiewicz <virrages@gmail.com>
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