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af92a33dee
Currently it relies on special treatment of `kw::Empty`, which is really easy to get wrong. This commit makes the special case clearer in the type system by using `Option`. It's a bit clumsy, but the synthetic name handling itself is a bit clumsy; better to make it explicit than sneak it in. Fixes #133426.
21 lines
464 B
Rust
21 lines
464 B
Rust
//! Test for the crash in #133426, caused by an empty symbol being used for a
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//! type name.
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#![allow(incomplete_features)]
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#![feature(never_patterns)]
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fn a(
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_: impl Iterator<
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Item = [(); {
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match *todo!() { ! }; //~ ERROR type `!` cannot be dereferenced
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}],
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>,
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) {
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}
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fn b(_: impl Iterator<Item = { match 0 { ! } }>) {}
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//~^ ERROR associated const equality is incomplete
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//~| ERROR expected type, found constant
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fn main() {}
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