rust/tests/ui/layout/enum.rs

25 lines
641 B
Rust

//@ normalize-stderr-test "pref: Align\([1-8] bytes\)" -> "pref: $$PREF_ALIGN"
//! Various enum layout tests.
#![feature(rustc_attrs)]
#![feature(never_type)]
#![crate_type = "lib"]
#[rustc_layout(align)]
enum UninhabitedVariantAlign { //~ERROR: abi: Align(2 bytes)
A([u8; 32]),
B([u16; 0], !), // make sure alignment in uninhabited fields is respected
}
#[rustc_layout(size)]
enum UninhabitedVariantSpace { //~ERROR: size: Size(16 bytes)
A,
B([u8; 15], !), // make sure there is space being reserved for this field.
}
#[rustc_layout(abi)]
enum ScalarPairDifferingSign { //~ERROR: abi: ScalarPair
A(u8),
B(i8),
}