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This centralizes the placeholder type error reporting in one location, but it also exposes the granularity at which we convert things from hir to ty more. E.g. previously infer types in where bounds were errored together with the function signature, but now they are independent.
48 lines
1.9 KiB
Plaintext
48 lines
1.9 KiB
Plaintext
error: expected identifier, found reserved identifier `_`
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--> $DIR/overlapping-errors-span-issue-123861.rs:1:17
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LL | fn mainIterator<_ = _> {}
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| ^ expected identifier, found reserved identifier
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error: missing parameters for function definition
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--> $DIR/overlapping-errors-span-issue-123861.rs:1:23
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LL | fn mainIterator<_ = _> {}
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| ^
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help: add a parameter list
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LL | fn mainIterator<_ = _>() {}
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| ++
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error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
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--> $DIR/overlapping-errors-span-issue-123861.rs:1:17
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LL | fn mainIterator<_ = _> {}
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| ^^^^^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
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= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
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= note: `#[deny(invalid_type_param_default)]` on by default
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error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
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--> $DIR/overlapping-errors-span-issue-123861.rs:1:21
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LL | fn mainIterator<_ = _> {}
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| ^ not allowed in type signatures
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0121`.
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Future incompatibility report: Future breakage diagnostic:
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error: defaults for type parameters are only allowed in `struct`, `enum`, `type`, or `trait` definitions
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--> $DIR/overlapping-errors-span-issue-123861.rs:1:17
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LL | fn mainIterator<_ = _> {}
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| ^^^^^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
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= note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887>
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= note: `#[deny(invalid_type_param_default)]` on by default
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