42 lines
973 B
Rust
42 lines
973 B
Rust
#![allow(unused)]
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#![warn(clippy::impl_trait_in_params)]
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//@no-rustfix
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pub trait Trait {}
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pub trait AnotherTrait<T> {}
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// Should warn
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pub fn a(_: impl Trait) {}
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//~^ ERROR: `impl Trait` used as a function parameter
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pub fn c<C: Trait>(_: C, _: impl Trait) {}
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//~^ ERROR: `impl Trait` used as a function parameter
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// Shouldn't warn
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pub fn b<B: Trait>(_: B) {}
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fn e<T: AnotherTrait<u32>>(_: T) {}
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fn d(_: impl AnotherTrait<u32>) {}
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//------ IMPLS
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trait T {
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// See test in ui-toml for a case where avoid-breaking-exported-api is set to true
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fn t(_: impl Trait);
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fn tt<T: Trait>(_: T) {}
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}
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struct S;
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impl S {
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pub fn h(_: impl Trait) {} //~ ERROR: `impl Trait` used as a function parameter
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fn i(_: impl Trait) {}
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pub fn j<J: Trait>(_: J) {}
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pub fn k<K: AnotherTrait<u32>>(_: K, _: impl AnotherTrait<u32>) {} //~ ERROR: `impl Trait` used as a function parameter
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}
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// Trying with traits
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impl T for S {
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fn t(_: impl Trait) {}
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}
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fn main() {}
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