diff options
Diffstat (limited to 'tests/codegen-units/item-collection/generic-drop-glue.rs')
-rw-r--r-- | tests/codegen-units/item-collection/generic-drop-glue.rs | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/tests/codegen-units/item-collection/generic-drop-glue.rs b/tests/codegen-units/item-collection/generic-drop-glue.rs new file mode 100644 index 000000000..6df4ff7e5 --- /dev/null +++ b/tests/codegen-units/item-collection/generic-drop-glue.rs @@ -0,0 +1,91 @@ +// +// compile-flags:-Zprint-mono-items=eager +// compile-flags:-Zinline-in-all-cgus + +#![deny(dead_code)] +#![feature(start)] + +struct StructWithDrop<T1, T2> { + x: T1, + y: T2, +} + +impl<T1, T2> Drop for StructWithDrop<T1, T2> { + fn drop(&mut self) {} +} + +struct StructNoDrop<T1, T2> { + x: T1, + y: T2, +} + +enum EnumWithDrop<T1, T2> { + A(T1), + B(T2) +} + +impl<T1, T2> Drop for EnumWithDrop<T1, T2> { + fn drop(&mut self) {} +} + +enum EnumNoDrop<T1, T2> { + A(T1), + B(T2) +} + + +struct NonGenericNoDrop(#[allow(unused_tuple_struct_fields)] i32); + +struct NonGenericWithDrop(#[allow(unused_tuple_struct_fields)] i32); +//~ MONO_ITEM fn std::ptr::drop_in_place::<NonGenericWithDrop> - shim(Some(NonGenericWithDrop)) @@ generic_drop_glue-cgu.0[Internal] + +impl Drop for NonGenericWithDrop { + //~ MONO_ITEM fn <NonGenericWithDrop as std::ops::Drop>::drop + fn drop(&mut self) {} +} + +//~ MONO_ITEM fn start +#[start] +fn start(_: isize, _: *const *const u8) -> isize { + //~ MONO_ITEM fn std::ptr::drop_in_place::<StructWithDrop<i8, char>> - shim(Some(StructWithDrop<i8, char>)) @@ generic_drop_glue-cgu.0[Internal] + //~ MONO_ITEM fn <StructWithDrop<i8, char> as std::ops::Drop>::drop + let _ = StructWithDrop { x: 0i8, y: 'a' }.x; + + //~ MONO_ITEM fn std::ptr::drop_in_place::<StructWithDrop<&str, NonGenericNoDrop>> - shim(Some(StructWithDrop<&str, NonGenericNoDrop>)) @@ generic_drop_glue-cgu.0[Internal] + //~ MONO_ITEM fn <StructWithDrop<&str, NonGenericNoDrop> as std::ops::Drop>::drop + let _ = StructWithDrop { x: "&str", y: NonGenericNoDrop(0) }.y; + + // Should produce no drop glue + let _ = StructNoDrop { x: 'a', y: 0u32 }.x; + + // This is supposed to generate drop-glue because it contains a field that + // needs to be dropped. + //~ MONO_ITEM fn std::ptr::drop_in_place::<StructNoDrop<NonGenericWithDrop, f64>> - shim(Some(StructNoDrop<NonGenericWithDrop, f64>)) @@ generic_drop_glue-cgu.0[Internal] + let _ = StructNoDrop { x: NonGenericWithDrop(0), y: 0f64 }.y; + + //~ MONO_ITEM fn std::ptr::drop_in_place::<EnumWithDrop<i32, i64>> - shim(Some(EnumWithDrop<i32, i64>)) @@ generic_drop_glue-cgu.0[Internal] + //~ MONO_ITEM fn <EnumWithDrop<i32, i64> as std::ops::Drop>::drop + let _ = match EnumWithDrop::A::<i32, i64>(0) { + EnumWithDrop::A(x) => x, + EnumWithDrop::B(x) => x as i32 + }; + + //~ MONO_ITEM fn std::ptr::drop_in_place::<EnumWithDrop<f64, f32>> - shim(Some(EnumWithDrop<f64, f32>)) @@ generic_drop_glue-cgu.0[Internal] + //~ MONO_ITEM fn <EnumWithDrop<f64, f32> as std::ops::Drop>::drop + let _ = match EnumWithDrop::B::<f64, f32>(1.0) { + EnumWithDrop::A(x) => x, + EnumWithDrop::B(x) => x as f64 + }; + + let _ = match EnumNoDrop::A::<i32, i64>(0) { + EnumNoDrop::A(x) => x, + EnumNoDrop::B(x) => x as i32 + }; + + let _ = match EnumNoDrop::B::<f64, f32>(1.0) { + EnumNoDrop::A(x) => x, + EnumNoDrop::B(x) => x as f64 + }; + + 0 +} |