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Move /src/test to /tests

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Albert Larsan 2023-01-05 09:13:28 +01:00
parent ca855e6e42
commit cf2dff2b1e
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50
src/test/ui/structs-enums/enum-layout-optimization.rs
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@ -1,50 +0,0 @@
// run-pass
// Test that we will do various size optimizations to enum layout, but
// *not* if `#[repr(u8)]` or `#[repr(C)]` is passed. See also #40029.
#![allow(dead_code)]
use std::mem;
enum Nullable<T> {
Alive(T),
Dropped,
}
#[repr(u8)]
enum NullableU8<T> {
Alive(T),
Dropped,
}
#[repr(C)]
enum NullableC<T> {
Alive(T),
Dropped,
}
struct StructNewtype<T>(T);
#[repr(C)]
struct StructNewtypeC<T>(T);
enum EnumNewtype<T> { Variant(T) }
#[repr(u8)]
enum EnumNewtypeU8<T> { Variant(T) }
#[repr(C)]
enum EnumNewtypeC<T> { Variant(T) }
fn main() {
assert!(mem::size_of::<Box<i32>>() == mem::size_of::<Nullable<Box<i32>>>());
assert!(mem::size_of::<Box<i32>>() < mem::size_of::<NullableU8<Box<i32>>>());
assert!(mem::size_of::<Box<i32>>() < mem::size_of::<NullableC<Box<i32>>>());
assert!(mem::size_of::<i32>() == mem::size_of::<StructNewtype<i32>>());
assert!(mem::size_of::<i32>() == mem::size_of::<StructNewtypeC<i32>>());
assert!(mem::size_of::<i32>() == mem::size_of::<EnumNewtype<i32>>());
assert!(mem::size_of::<i32>() < mem::size_of::<EnumNewtypeU8<i32>>());
assert!(mem::size_of::<i32>() < mem::size_of::<EnumNewtypeC<i32>>());
}