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// compile-flags:-Zprint-mono-items=eager
// compile-flags:-Zinline-in-all-cgus
#![deny(dead_code)]
#![feature(coerce_unsized)]
#![feature(unsize)]
#![feature(start)]
use std::marker::Unsize;
use std::ops::CoerceUnsized;
trait Trait {
fn foo(&self);
}
// Simple Case
impl Trait for bool {
fn foo(&self) {}
}
impl Trait for char {
fn foo(&self) {}
}
// Struct Field Case
struct Struct<T: ?Sized> {
_a: u32,
_b: i32,
_c: T
}
impl Trait for f64 {
fn foo(&self) {}
}
// Custom Coercion Case
impl Trait for u32 {
fn foo(&self) {}
}
#[derive(Clone, Copy)]
struct Wrapper<T: ?Sized>(*const T);
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Wrapper<U>> for Wrapper<T> {}
//~ MONO_ITEM fn unsizing::start[0]
#[start]
fn start(_: isize, _: *const *const u8) -> isize {
// simple case
let bool_sized = &true;
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<bool> @@ unsizing-cgu.0[Internal]
//~ MONO_ITEM fn unsizing::{{impl}}[0]::foo[0]
let _bool_unsized = bool_sized as &Trait;
let char_sized = &'a';
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<char> @@ unsizing-cgu.0[Internal]
//~ MONO_ITEM fn unsizing::{{impl}}[1]::foo[0]
let _char_unsized = char_sized as &Trait;
// struct field
let struct_sized = &Struct {
_a: 1,
_b: 2,
_c: 3.0f64
};
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<f64> @@ unsizing-cgu.0[Internal]
//~ MONO_ITEM fn unsizing::{{impl}}[2]::foo[0]
let _struct_unsized = struct_sized as &Struct<Trait>;
// custom coercion
let wrapper_sized = Wrapper(&0u32);
//~ MONO_ITEM fn core::ptr[0]::drop_in_place[0]<u32> @@ unsizing-cgu.0[Internal]
//~ MONO_ITEM fn unsizing::{{impl}}[3]::foo[0]
let _wrapper_sized = wrapper_sized as Wrapper<Trait>;
0
}
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