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macros: tidy up lint changes

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Small tweaks to changes made in a previous PR, unrelated to eager
translation.

Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood 2022-10-03 15:34:00 +01:00
parent 691aeaad6c
commit febbf71219
1 changed files with 6 additions and 3 deletions
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9
compiler/rustc_macros/src/diagnostics/diagnostic.rs
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@ -105,8 +105,8 @@ impl<'a> LintDiagnosticDerive<'a> {
}); });
let msg = builder.each_variant(&mut structure, |mut builder, variant| { let msg = builder.each_variant(&mut structure, |mut builder, variant| {
// HACK(wafflelapkin): initialize slug (???) // Collect the slug by generating the preamble.
let _preamble = builder.preamble(&variant); let _ = builder.preamble(&variant);
match builder.slug.value_ref() { match builder.slug.value_ref() {
None => { None => {
@ -125,7 +125,10 @@ impl<'a> LintDiagnosticDerive<'a> {
let diag = &builder.diag; let diag = &builder.diag;
structure.gen_impl(quote! { structure.gen_impl(quote! {
gen impl<'__a> rustc_errors::DecorateLint<'__a, ()> for @Self { gen impl<'__a> rustc_errors::DecorateLint<'__a, ()> for @Self {
fn decorate_lint<'__b>(self, #diag: &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()>) -> &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()> { fn decorate_lint<'__b>(
self,
#diag: &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()>
) -> &'__b mut rustc_errors::DiagnosticBuilder<'__a, ()> {
use rustc_errors::IntoDiagnosticArg; use rustc_errors::IntoDiagnosticArg;
#implementation #implementation
} }