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New format for E0221 #35556

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1 change: 1 addition & 0 deletions src/librustc_typeck/astconv.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1285,6 +1285,7 @@ impl<'o, 'gcx: 'tcx, 'tcx> AstConv<'gcx, 'tcx>+'o {
"ambiguous associated type `{}` in bounds of `{}`",
assoc_name,
ty_param_name);
err.span_label(span, &format!("ambiguous associated type `{}`", assoc_name));

for bound in &bounds {
span_note!(&mut err, span,
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6 changes: 5 additions & 1 deletion src/test/compile-fail/E0221.rs
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Expand Up @@ -18,7 +18,11 @@ trait Foo {
trait Bar : Foo {
type A: T2;
fn do_something() {
let _: Self::A; //~ ERROR E0221
let _: Self::A;
//~^ ERROR E0221
//~| NOTE ambiguous associated type `A`
//~| NOTE associated type `Self` could derive from `Foo`
//~| NOTE associated type `Self` could derive from `Bar`
}
}

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