rust/tests/codegen-units/item-collection/impl-in-non-instantiated-generic.rs

28 lines
518 B
Rust

//@ compile-flags:-Zprint-mono-items=eager
#![deny(dead_code)]
#![feature(start)]
trait SomeTrait {
fn foo(&self);
}
// This function is never instantiated but the contained impl must still be
// discovered.
pub fn generic_function<T>(x: T) -> (T, i32) {
impl SomeTrait for i64 {
//~ MONO_ITEM fn generic_function::<impl SomeTrait for i64>::foo
fn foo(&self) {}
}
(x, 0)
}
//~ MONO_ITEM fn start
#[start]
fn start(_: isize, _: *const *const u8) -> isize {
0i64.foo();
0
}