rust/tests/ui/inherent-impls-overlap-check/overlap.rs
2023-01-11 09:32:08 +00:00

72 lines
1.3 KiB
Rust

// aux-build:repeat.rs
#![allow(unused)]
// This tests the allocating algo branch of the
// inherent impls overlap checker.
// This branch was added by PR:
// https://github.com/rust-lang/rust/pull/78317
// In this test, we repeat many impl blocks
// to trigger the allocating branch.
// Simple overlap
extern crate repeat;
struct Foo {}
repeat::repeat_with_idents!(impl Foo { fn IDENT() {} });
impl Foo { fn hello() {} } //~ERROR duplicate definitions with name `hello`
impl Foo { fn hello() {} }
// Transitive overlap
struct Foo2 {}
repeat::repeat_with_idents!(impl Foo2 { fn IDENT() {} });
impl Foo2 {
fn bar() {}
fn hello2() {} //~ERROR duplicate definitions with name `hello2`
}
impl Foo2 {
fn baz() {}
fn hello2() {}
}
// Slightly stronger transitive overlap
struct Foo3 {}
repeat::repeat_with_idents!(impl Foo3 { fn IDENT() {} });
impl Foo3 {
fn bar() {} //~ERROR duplicate definitions with name `bar`
fn hello3() {} //~ERROR duplicate definitions with name `hello3`
}
impl Foo3 {
fn bar() {}
fn hello3() {}
}
// Generic overlap
struct Bar<T>(T);
struct A;
struct B;
repeat::repeat_with_idents!(impl Bar<A> { fn IDENT() {} });
impl Bar<A> { fn foo() {} fn bar2() {} }
impl Bar<B> {
fn foo() {}
fn bar2() {} //~ERROR duplicate definitions with name `bar2`
}
impl Bar<B> { fn bar2() {} }
fn main() {}