89 lines
1.9 KiB
Rust
89 lines
1.9 KiB
Rust
//@ build-pass (FIXME(62277): could be check-pass?)
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//@ edition:2018
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//@ compile-flags: --crate-type lib
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use std::future::Future;
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pub async fn simple_generic<T>() {}
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pub trait Foo {
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fn foo(&self) {}
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}
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struct FooType;
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impl Foo for FooType {}
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pub async fn call_generic_bound<F: Foo>(f: F) {
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f.foo()
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}
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pub async fn call_where_clause<F>(f: F)
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where
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F: Foo,
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{
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f.foo()
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}
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pub async fn call_impl_trait(f: impl Foo) {
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f.foo()
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}
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pub async fn call_with_ref(f: &impl Foo) {
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f.foo()
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}
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pub fn async_fn_with_same_generic_params_unifies() {
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let mut a = call_generic_bound(FooType);
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a = call_generic_bound(FooType);
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let mut b = call_where_clause(FooType);
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b = call_where_clause(FooType);
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let mut c = call_impl_trait(FooType);
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c = call_impl_trait(FooType);
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let f_one = FooType;
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let f_two = FooType;
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let mut d = call_with_ref(&f_one);
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d = call_with_ref(&f_two);
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}
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pub fn simple_generic_block<T>() -> impl Future<Output = ()> {
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async move {}
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}
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pub fn call_generic_bound_block<F: Foo>(f: F) -> impl Future<Output = ()> {
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async move { f.foo() }
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}
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pub fn call_where_clause_block<F>(f: F) -> impl Future<Output = ()>
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where
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F: Foo,
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{
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async move { f.foo() }
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}
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pub fn call_impl_trait_block(f: impl Foo) -> impl Future<Output = ()> {
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async move { f.foo() }
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}
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pub fn call_with_ref_block<'a>(f: &'a (impl Foo + 'a)) -> impl Future<Output = ()> + 'a {
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async move { f.foo() }
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}
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pub fn async_block_with_same_generic_params_unifies() {
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let mut a = call_generic_bound_block(FooType);
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a = call_generic_bound_block(FooType);
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let mut b = call_where_clause_block(FooType);
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b = call_where_clause_block(FooType);
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let mut c = call_impl_trait_block(FooType);
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c = call_impl_trait_block(FooType);
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let f_one = FooType;
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let f_two = FooType;
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let mut d = call_with_ref_block(&f_one);
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d = call_with_ref_block(&f_two);
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}
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