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// compile-flags: -Z unstable-options
#![crate_type = "lib"]
#![feature(rustc_attrs)]
#![feature(rustc_private)]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]
extern crate rustc_errors;
extern crate rustc_macros;
extern crate rustc_session;
extern crate rustc_span;
use rustc_errors::{
AddToDiagnostic, IntoDiagnostic, Diagnostic, DiagnosticBuilder,
ErrorGuaranteed, Handler, DiagnosticMessage, SubdiagnosticMessage,
};
use rustc_macros::{fluent_messages, Diagnostic, Subdiagnostic};
use rustc_span::Span;
fluent_messages! { "./diagnostics.ftl" }
#[derive(Diagnostic)]
#[diag(no_crate_example)]
struct DeriveDiagnostic {
#[primary_span]
span: Span,
}
#[derive(Subdiagnostic)]
#[note(no_crate_example)]
struct Note {
#[primary_span]
span: Span,
}
pub struct UntranslatableInIntoDiagnostic;
impl<'a> IntoDiagnostic<'a, ErrorGuaranteed> for UntranslatableInIntoDiagnostic {
fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> {
handler.struct_err("untranslatable diagnostic")
//~^ ERROR diagnostics should be created using translatable messages
}
}
pub struct TranslatableInIntoDiagnostic;
impl<'a> IntoDiagnostic<'a, ErrorGuaranteed> for TranslatableInIntoDiagnostic {
fn into_diagnostic(self, handler: &'a Handler) -> DiagnosticBuilder<'a, ErrorGuaranteed> {
handler.struct_err(crate::fluent_generated::no_crate_example)
}
}
pub struct UntranslatableInAddToDiagnostic;
impl AddToDiagnostic for UntranslatableInAddToDiagnostic {
fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _: F)
where
F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage,
{
diag.note("untranslatable diagnostic");
//~^ ERROR diagnostics should be created using translatable messages
}
}
pub struct TranslatableInAddToDiagnostic;
impl AddToDiagnostic for TranslatableInAddToDiagnostic {
fn add_to_diagnostic_with<F>(self, diag: &mut Diagnostic, _: F)
where
F: Fn(&mut Diagnostic, SubdiagnosticMessage) -> SubdiagnosticMessage,
{
diag.note(crate::fluent_generated::no_crate_note);
}
}
pub fn make_diagnostics<'a>(handler: &'a Handler) {
let _diag = handler.struct_err(crate::fluent_generated::no_crate_example);
//~^ ERROR diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls
let _diag = handler.struct_err("untranslatable diagnostic");
//~^ ERROR diagnostics should only be created in `IntoDiagnostic`/`AddToDiagnostic` impls
//~^^ ERROR diagnostics should be created using translatable messages
}
// Check that `rustc_lint_diagnostics`-annotated functions aren't themselves linted.
#[rustc_lint_diagnostics]
pub fn skipped_because_of_annotation<'a>(handler: &'a Handler) {
let _diag = handler.struct_err("untranslatable diagnostic"); // okay!
}
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