New upstream version 1.48.0~beta.8+dfsg1

[rustc.git] / src / test / codegen-units / item-collection / trait-implementations.rs

// compile-flags:-Zprint-mono-items=eager

#![deny(dead_code)]
#![feature(start)]

pub trait SomeTrait {
    fn foo(&self);
    fn bar<T>(&self, x: T);
}

impl SomeTrait for i64 {

    //~ MONO_ITEM fn <i64 as SomeTrait>::foo
    fn foo(&self) {}

    fn bar<T>(&self, _: T) {}
}

impl SomeTrait for i32 {

    //~ MONO_ITEM fn <i32 as SomeTrait>::foo
    fn foo(&self) {}

    fn bar<T>(&self, _: T) {}
}

pub trait SomeGenericTrait<T> {
    fn foo(&self, x: T);
    fn bar<T2>(&self, x: T, y: T2);
}

// Concrete impl of generic trait
impl SomeGenericTrait<u32> for f64 {

    //~ MONO_ITEM fn <f64 as SomeGenericTrait<u32>>::foo
    fn foo(&self, _: u32) {}

    fn bar<T2>(&self, _: u32, _: T2) {}
}

// Generic impl of generic trait
impl<T> SomeGenericTrait<T> for f32 {

    fn foo(&self, _: T) {}
    fn bar<T2>(&self, _: T, _: T2) {}
}

//~ MONO_ITEM fn start
#[start]
fn start(_: isize, _: *const *const u8) -> isize {
   //~ MONO_ITEM fn <i32 as SomeTrait>::bar::<char>
   0i32.bar('x');

   //~ MONO_ITEM fn <f64 as SomeGenericTrait<u32>>::bar::<&str>
   0f64.bar(0u32, "&str");

   //~ MONO_ITEM fn <f64 as SomeGenericTrait<u32>>::bar::<()>
   0f64.bar(0u32, ());

   //~ MONO_ITEM fn <f32 as SomeGenericTrait<char>>::foo
   0f32.foo('x');

   //~ MONO_ITEM fn <f32 as SomeGenericTrait<i64>>::foo
   0f32.foo(-1i64);

   //~ MONO_ITEM fn <f32 as SomeGenericTrait<u32>>::bar::<()>
   0f32.bar(0u32, ());

   //~ MONO_ITEM fn <f32 as SomeGenericTrait<&str>>::bar::<&str>
   0f32.bar("&str", "&str");

   0
}