diff options
Diffstat (limited to 'tests/ui/nll/user-annotations/adt-nullary-enums.rs')
-rw-r--r-- | tests/ui/nll/user-annotations/adt-nullary-enums.rs | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/tests/ui/nll/user-annotations/adt-nullary-enums.rs b/tests/ui/nll/user-annotations/adt-nullary-enums.rs new file mode 100644 index 000000000..53853668d --- /dev/null +++ b/tests/ui/nll/user-annotations/adt-nullary-enums.rs @@ -0,0 +1,69 @@ +// Unit test for the "user substitutions" that are annotated on each +// node. + +#![allow(warnings)] + +use std::cell::Cell; + +enum SomeEnum<T> { + SomeVariant(T), + SomeOtherVariant, +} + +fn combine<T>(_: T, _: T) { } + +fn no_annot() { + let c = 66; + combine(SomeEnum::SomeVariant(Cell::new(&c)), SomeEnum::SomeOtherVariant); +} + +fn annot_underscore() { + let c = 66; + combine(SomeEnum::SomeVariant(Cell::new(&c)), SomeEnum::SomeOtherVariant::<Cell<_>>); +} + +fn annot_reference_any_lifetime() { + let c = 66; + combine(SomeEnum::SomeVariant(Cell::new(&c)), SomeEnum::SomeOtherVariant::<Cell<&u32>>); +} + +fn annot_reference_static_lifetime() { + let c = 66; + combine( + SomeEnum::SomeVariant(Cell::new(&c)), //~ ERROR + SomeEnum::SomeOtherVariant::<Cell<&'static u32>>, + ); +} + +fn annot_reference_named_lifetime<'a>(_d: &'a u32) { + let c = 66; + combine( + SomeEnum::SomeVariant(Cell::new(&c)), //~ ERROR + SomeEnum::SomeOtherVariant::<Cell<&'a u32>>, + ); +} + +fn annot_reference_named_lifetime_ok<'a>(c: &'a u32) { + combine(SomeEnum::SomeVariant(Cell::new(c)), SomeEnum::SomeOtherVariant::<Cell<&'a u32>>); +} + +fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) { + let _closure = || { + let c = 66; + combine( + SomeEnum::SomeVariant(Cell::new(&c)), //~ ERROR + SomeEnum::SomeOtherVariant::<Cell<&'a u32>>, + ); + }; +} + +fn annot_reference_named_lifetime_in_closure_ok<'a>(c: &'a u32) { + let _closure = || { + combine( + SomeEnum::SomeVariant(Cell::new(c)), + SomeEnum::SomeOtherVariant::<Cell<&'a u32>>, + ); + }; +} + +fn main() { } |