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Refactor rustc lint API

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This commit is contained in:
Maybe Waffle 2022-09-16 11:01:02 +04:00
parent 65445a571c
commit a8f7e244b7
64 changed files with 1760 additions and 1555 deletions
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35
compiler/rustc_macros/src/diagnostics/diagnostic.rs
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@ -96,38 +96,43 @@ impl<'a> LintDiagnosticDerive<'a> {
let body = builder.body(&variant);
let diag = &builder.parent.diag;
let init = match builder.slug.value_ref() {
quote! {
#preamble
#body
#diag
}
});
let msg = builder.each_variant(&mut structure, |mut builder, variant| {
// HACK(wafflelapkin): initialize slug (???)
let _preamble = builder.preamble(&variant);
match builder.slug.value_ref() {
None => {
span_err(builder.span, "diagnostic slug not specified")
.help(&format!(
"specify the slug as the first argument to the attribute, such as \
`#[diag(typeck::example_error)]`",
`#[diag(typeck::example_error)]`",
))
.emit();
return DiagnosticDeriveError::ErrorHandled.to_compile_error();
}
Some(slug) => {
quote! {
let mut #diag = #diag.build(rustc_errors::fluent::#slug);
}
}
};
quote! {
#init
#preamble
#body
#diag.emit();
Some(slug) => quote! { rustc_errors::fluent::#slug.into() },
}
});
let diag = &builder.diag;
structure.gen_impl(quote! {
gen impl<'__a> rustc_errors::DecorateLint<'__a, ()> for @Self {
fn decorate_lint(self, #diag: rustc_errors::LintDiagnosticBuilder<'__a, ()>) {
fn decorate_lint<'__b>(self, #diag: &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()>) -> &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()> {
use rustc_errors::IntoDiagnosticArg;
#implementation
}
fn msg(&self) -> rustc_errors::DiagnosticMessage {
#msg
}
}
})
}