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Use chaining for DiagnosticBuilder construction and emit.

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To avoid the use of a mutable local variable, and because it reads more
nicely.
This commit is contained in:
Nicholas Nethercote 2024-01-03 17:03:10 +11:00
parent 589591efde
commit bd4e623485
22 changed files with 193 additions and 183 deletions
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8
compiler/rustc_codegen_ssa/src/codegen_attrs.rs
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@ -303,14 +303,14 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs {
// This exception needs to be kept in sync with allowing
// `#[target_feature]` on `main` and `start`.
} else if !tcx.features().target_feature_11 {
let mut err = feature_err(
feature_err(
&tcx.sess.parse_sess,
sym::target_feature_11,
attr.span,
"`#[target_feature(..)]` can only be applied to `unsafe` functions",
);
err.span_label(tcx.def_span(did), "not an `unsafe` function");
err.emit();
)
.span_label_mv(tcx.def_span(did), "not an `unsafe` function")
.emit();
} else {
check_target_feature_trait_unsafe(tcx, did, attr.span);
}