mirror of https://github.com/rust-lang/rust
24 lines
440 B
Rust
24 lines
440 B
Rust
// Regression test for Issue #20971.
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//@ run-fail
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//@ error-pattern:Hello, world!
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//@ ignore-emscripten no processes
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pub trait Parser {
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type Input;
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fn parse(&mut self, input: <Self as Parser>::Input);
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}
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impl Parser for () {
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type Input = ();
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fn parse(&mut self, input: ()) {}
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}
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pub fn many() -> Box<dyn Parser<Input = <() as Parser>::Input> + 'static> {
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panic!("Hello, world!")
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}
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fn main() {
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many().parse(());
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}
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