File: inline_specialization.rs

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// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
#![feature(specialization)]

// EMIT_MIR inline_specialization.main.Inline.diff
fn main() {
    // CHECK-LABEL: fn main(
    // CHECK: (inlined <Vec<()> as Foo>::bar)
    let x = <Vec::<()> as Foo>::bar();
}

trait Foo {
    fn bar() -> u32;
}

impl<T> Foo for Vec<T> {
    #[inline(always)]
    default fn bar() -> u32 { 123 }
}