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// This test depends on a patch that was committed to upstream LLVM
// before 7.0, then backported to the Rust LLVM fork. It tests that
// optimized enum debug info accurately reflects the enum layout.
// ignore-tidy-linelength
// ignore-windows
// min-system-llvm-version 8.0
// compile-flags: -g -C no-prepopulate-passes
// CHECK: {{.*}}DICompositeType{{.*}}tag: DW_TAG_variant_part,{{.*}}size: 32,{{.*}}
// CHECK: {{.*}}DIDerivedType{{.*}}tag: DW_TAG_member,{{.*}}name: "Placeholder",{{.*}}extraData: i64 4294967295{{[,)].*}}
// CHECK: {{.*}}DIDerivedType{{.*}}tag: DW_TAG_member,{{.*}}name: "Error",{{.*}}extraData: i64 0{{[,)].*}}
#![feature(never_type)]
#![feature(nll)]
#[derive(Copy, Clone)]
pub struct Entity {
private: std::num::NonZeroU32,
}
#[derive(Copy, Clone, PartialEq, Eq)]
pub struct Declaration;
impl TypeFamily for Declaration {
type Base = Base;
type Placeholder = !;
fn intern_base_data(_: BaseKind<Self>) {}
}
#[derive(Copy, Clone)]
pub struct Base;
pub trait TypeFamily: Copy + 'static {
type Base: Copy;
type Placeholder: Copy;
fn intern_base_data(_: BaseKind<Self>);
}
#[derive(Copy, Clone)]
pub enum BaseKind<F: TypeFamily> {
Named(Entity),
Placeholder(F::Placeholder),
Error,
}
pub fn main() {
let x = BaseKind::Error::<Declaration>;
let y = 7;
}
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