Emit fewer errors on patterns with possible type ascription
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2d82420665
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@ -2500,6 +2500,8 @@ impl<'a> Parser<'a> {
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Ok(ty) => {
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err.span_label(ty.span, "specifying the type of a pattern isn't supported");
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self.restore_snapshot(snapshot_type);
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let new_span = first_pat.span.to(ty.span);
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first_pat = self.mk_pat(new_span, PatKind::Wild);
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}
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}
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err.emit();
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@ -3,7 +3,6 @@ fn foo(x: bool | i32) -> i32 | f64 {
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//~| ERROR anonymous enums are not supported
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match x {
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x: i32 => x, //~ ERROR expected
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//~^ ERROR failed to resolve
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true => 42.,
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false => 0.333,
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}
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@ -14,6 +13,5 @@ fn main() {
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42: i32 => (), //~ ERROR expected
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_: f64 => (), //~ ERROR expected
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x: i32 => (), //~ ERROR expected
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//~^ ERROR failed to resolve
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}
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}
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@ -36,7 +36,7 @@ LL | x::i32 => x,
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| ~~
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error: expected one of `...`, `..=`, `..`, or `|`, found `:`
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--> $DIR/anon-enums.rs:14:11
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--> $DIR/anon-enums.rs:13:11
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LL | 42: i32 => (),
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| ^ --- specifying the type of a pattern isn't supported
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@ -44,7 +44,7 @@ LL | 42: i32 => (),
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| expected one of `...`, `..=`, `..`, or `|`
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error: expected `|`, found `:`
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--> $DIR/anon-enums.rs:15:10
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--> $DIR/anon-enums.rs:14:10
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LL | _: f64 => (),
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| ^ --- specifying the type of a pattern isn't supported
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@ -52,7 +52,7 @@ LL | _: f64 => (),
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| expected `|`
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error: expected one of `@` or `|`, found `:`
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--> $DIR/anon-enums.rs:16:10
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--> $DIR/anon-enums.rs:15:10
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LL | x: i32 => (),
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| ^ --- specifying the type of a pattern isn't supported
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@ -64,18 +64,5 @@ help: maybe write a path separator here
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LL | x::i32 => (),
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| ~~
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error[E0433]: failed to resolve: use of undeclared crate or module `x`
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--> $DIR/anon-enums.rs:5:9
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LL | x: i32 => x,
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| ^ use of undeclared crate or module `x`
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error: aborting due to 6 previous errors
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error[E0433]: failed to resolve: use of undeclared crate or module `x`
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--> $DIR/anon-enums.rs:16:9
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LL | x: i32 => (),
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| ^ use of undeclared crate or module `x`
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error: aborting due to 8 previous errors
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For more information about this error, try `rustc --explain E0433`.
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@ -68,7 +68,6 @@ fn main() {
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Foo:Bar::Baz => {}
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//~^ ERROR: expected one of
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//~| HELP: maybe write a path separator here
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//~| ERROR: failed to resolve: `Bar` is a variant, not a module
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}
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match myfoo {
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Foo::Bar => {}
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@ -103,7 +103,7 @@ LL | Foo::Bar::Baz => {}
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| ~~
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error: expected one of `@` or `|`, found `:`
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--> $DIR/issue-87086-colon-path-sep.rs:75:12
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--> $DIR/issue-87086-colon-path-sep.rs:74:12
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LL | Foo:Bar => {}
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| ^--- specifying the type of a pattern isn't supported
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@ -115,12 +115,5 @@ help: maybe write a path separator here
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LL | Foo::Bar => {}
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| ~~
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error[E0433]: failed to resolve: `Bar` is a variant, not a module
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--> $DIR/issue-87086-colon-path-sep.rs:68:13
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LL | Foo:Bar::Baz => {}
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| ^^^ `Bar` is a variant, not a module
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error: aborting due to 9 previous errors
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error: aborting due to 10 previous errors
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For more information about this error, try `rustc --explain E0433`.
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