0eac38b7a6
suggest `where T: Foo` for the first bound on a trait, then suggest `, T: Foo` when the suggested bound would add to an existing set of `where` clauses. `where T: Foo` may be the first bound if `T` has a default, because we'd rather suggest ``` trait A<T=()> where T: Copy ``` than ``` trait A<T: Copy=()> ``` for legibility reasons.
21 lines
461 B
Rust
21 lines
461 B
Rust
// run-rustfix
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#[allow(unused)]
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use std::fmt::Debug;
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// Rustfix should add this, or use `std::fmt::Debug` instead.
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#[allow(dead_code)]
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struct ConstrainedStruct<X: Copy> {
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x: X
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}
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#[allow(dead_code)]
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trait InsufficientlyConstrainedGeneric<X=()> where X: Copy {
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fn return_the_constrained_type(&self, x: X) -> ConstrainedStruct<X> {
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//~^ ERROR the trait bound `X: Copy` is not satisfied
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ConstrainedStruct { x }
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}
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}
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pub fn main() { }
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