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This commit is contained in:
Yuki Okushi 2021-09-17 14:10:41 +09:00
parent 9342be5538
commit ee99bb3939
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2 changed files with 8 additions and 6 deletions
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4
compiler/rustc_parse/src/parser/diagnostics.rs
View File

@ -1959,11 +1959,11 @@ pub fn recover_const_arg(
if token::EqEq == snapshot.token.kind {
err.span_suggestion(
snapshot.token.span,
"replace `==` with `=`",
"if you meant to use an associated type binding, replace `==` with `=`",
"=".to_string(),
Applicability::MaybeIncorrect,
);
let value = self.mk_expr_err(expr.span);
let value = self.mk_expr_err(start.to(expr.span));
err.emit();
return Ok(GenericArg::Const(AnonConst { id: ast::DUMMY_NODE_ID, value }));
} else if token::Comma == self.token.kind || self.token.kind.should_end_const_arg()

10
src/test/ui/const-generics/issues/issue-87493.stderr
View File

@ -2,10 +2,12 @@ error: expected one of `,` or `>`, found `==`
--> $DIR/issue-87493.rs:8:22
|
LL | T: MyTrait<Assoc == S::Assoc>,
| ^^
| |
| expected one of `,` or `>`
| help: replace `==` with `=`: `=`
| ^^ expected one of `,` or `>`
|
help: if you meant to use an associated type binding, replace `==` with `=`
|
LL | T: MyTrait<Assoc = S::Assoc>,
| ~
error[E0107]: this trait takes 0 generic arguments but 1 generic argument was supplied
--> $DIR/issue-87493.rs:8:8