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// Validation stops this too early.
//@compile-flags: -Zmiri-disable-validation
#![feature(trait_upcasting)]
#![allow(incomplete_features)]
trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync {
#[allow(dead_code)]
fn a(&self) -> i32 {
10
}
#[allow(dead_code)]
fn z(&self) -> i32 {
11
}
#[allow(dead_code)]
fn y(&self) -> i32 {
12
}
}
trait Bar: Foo {
#[allow(dead_code)]
fn b(&self) -> i32 {
20
}
#[allow(dead_code)]
fn w(&self) -> i32 {
21
}
}
trait Baz: Bar {
#[allow(dead_code)]
fn c(&self) -> i32 {
30
}
}
impl Foo for i32 {
fn a(&self) -> i32 {
100
}
}
impl Bar for i32 {
fn b(&self) -> i32 {
200
}
}
impl Baz for i32 {
fn c(&self) -> i32 {
300
}
}
fn main() {
let baz: &dyn Baz = &1;
let baz_fake: *const dyn Bar = unsafe { std::mem::transmute(baz) };
let _err = baz_fake as *const dyn Foo;
//~^ERROR: using vtable for trait `Baz` but trait `Bar` was expected
}
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