mirror of https://github.com/rust-lang/rust
52 lines
1.3 KiB
Rust
52 lines
1.3 KiB
Rust
//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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//@[next] check-pass
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trait MyFn<T> {
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type Output;
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}
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trait Callback<A>: MyFn<A, Output = Self::Ret> {
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type Ret;
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}
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impl<A, F: MyFn<A>> Callback<A> for F {
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type Ret = F::Output;
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}
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struct Thing;
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trait Trait {}
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impl Trait for Thing {}
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trait ChannelSender {
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type CallbackArg;
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fn autobatch<F>(self) -> impl Trait
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where
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F: Callback<Self::CallbackArg>;
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//[current]~^ ERROR the trait bound `F: Callback<i32>` is not satisfied
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}
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struct Sender;
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impl ChannelSender for Sender {
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type CallbackArg = i32;
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fn autobatch<F>(self) -> impl Trait
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//[current]~^ ERROR the trait bound `F: MyFn<i32>` is not satisfied
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//[current]~| ERROR the trait bound `F: MyFn<i32>` is not satisfied
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//[current]~| ERROR the trait bound `F: MyFn<i32>` is not satisfied
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//[current]~| ERROR the trait bound `F: MyFn<i32>` is not satisfied
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//[current]~| ERROR the trait bound `F: MyFn<i32>` is not satisfied
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where
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F: Callback<Self::CallbackArg>,
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//[current]~^ ERROR the trait bound `F: Callback<i32>` is not satisfied
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//[current]~| ERROR the trait bound `F: MyFn<i32>` is not satisfied
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{
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Thing
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}
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}
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fn main() {}
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