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Don't call bump in check_mistyped_turbofish_with_multiple_type_params #84140

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Merged
merged 2 commits into from
Apr 13, 2021
Merged

Don't call bump in check_mistyped_turbofish_with_multiple_type_params #84140

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dd54459
don't bump in check_mistyped_turbofish_with_multiple_type_params
b-naber Apr 12, 2021
4dfaa78
add test
b-naber Apr 12, 2021
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32 changes: 17 additions & 15 deletions compiler/rustc_parse/src/parser/diagnostics.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -666,21 +666,23 @@ impl<'a> Parser<'a> {
);
match x {
Ok((_, _, false)) => {
self.bump(); // `>`
match self.parse_expr() {
Ok(_) => {
e.span_suggestion_verbose(
binop.span.shrink_to_lo(),
TURBOFISH_SUGGESTION_STR,
"::".to_string(),
Applicability::MaybeIncorrect,
);
e.emit();
*expr = self.mk_expr_err(expr.span.to(self.prev_token.span));
return Ok(());
}
Err(mut err) => {
err.cancel();
if self.eat(&token::Gt) {
match self.parse_expr() {
Ok(_) => {
e.span_suggestion_verbose(
binop.span.shrink_to_lo(),
TURBOFISH_SUGGESTION_STR,
"::".to_string(),
Applicability::MaybeIncorrect,
);
e.emit();
*expr =
self.mk_expr_err(expr.span.to(self.prev_token.span));
return Ok(());
}
Err(mut err) => {
err.cancel();
}
}
}
}
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9 changes: 9 additions & 0 deletions src/test/ui/parser/issue-84117.rs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
fn main() {
let outer_local:e_outer<&str, { let inner_local:e_inner<&str, }
//~^ ERROR expected one of `>`, a const expression
//~| ERROR expected one of `>`, a const expression, lifetime, or type, found `}`
//~| ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,`
//~| ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,`
//~| ERROR expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,`
}
//~^ ERROR expected one of `,`, `:`, `=`, or `>`, found `}`
49 changes: 49 additions & 0 deletions src/test/ui/parser/issue-84117.stderr
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Original file line number Diff line number Diff line change
@@ -0,0 +1,49 @@
error: expected one of `>`, a const expression, lifetime, or type, found `}`
--> $DIR/issue-84117.rs:2:67
|
LL | let outer_local:e_outer<&str, { let inner_local:e_inner<&str, }
| ------------ ^ expected one of `>`, a const expression, lifetime, or type
| | |
| | help: use `=` if you meant to assign
| while parsing the type for `inner_local`

error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,`
--> $DIR/issue-84117.rs:2:65
|
LL | let outer_local:e_outer<&str, { let inner_local:e_inner<&str, }
| ^ expected one of 7 possible tokens

error: expected one of `,`, `:`, `=`, or `>`, found `}`
--> $DIR/issue-84117.rs:8:1
|
LL | let outer_local:e_outer<&str, { let inner_local:e_inner<&str, }
| ------------ help: use `=` if you meant to assign - expected one of `,`, `:`, `=`, or `>`
| |
| while parsing the type for `outer_local`
...
LL | }
| ^ unexpected token

error: expected one of `>`, a const expression, lifetime, or type, found `}`
--> $DIR/issue-84117.rs:2:67
|
LL | let outer_local:e_outer<&str, { let inner_local:e_inner<&str, }
| ------------ ^ expected one of `>`, a const expression, lifetime, or type
| | |
| | help: use `=` if you meant to assign
| while parsing the type for `inner_local`

error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,`
--> $DIR/issue-84117.rs:2:65
|
LL | let outer_local:e_outer<&str, { let inner_local:e_inner<&str, }
| ^ expected one of 7 possible tokens

error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, or an operator, found `,`
--> $DIR/issue-84117.rs:2:33
|
LL | let outer_local:e_outer<&str, { let inner_local:e_inner<&str, }
| ^ expected one of 7 possible tokens

error: aborting due to 6 previous errors