mirror of https://github.com/rust-lang/rust
70 lines
1.6 KiB
Rust
70 lines
1.6 KiB
Rust
// Unit test for the "user substitutions" that are annotated on each
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// node.
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#![allow(warnings)]
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use std::cell::Cell;
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enum SomeEnum<T> {
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SomeVariant(T),
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SomeOtherVariant,
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}
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fn combine<T>(_: T, _: T) { }
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fn no_annot() {
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let c = 66;
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combine(SomeEnum::SomeVariant(Cell::new(&c)), SomeEnum::SomeOtherVariant);
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}
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fn annot_underscore() {
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let c = 66;
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combine(SomeEnum::SomeVariant(Cell::new(&c)), SomeEnum::SomeOtherVariant::<Cell<_>>);
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}
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fn annot_reference_any_lifetime() {
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let c = 66;
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combine(SomeEnum::SomeVariant(Cell::new(&c)), SomeEnum::SomeOtherVariant::<Cell<&u32>>);
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}
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fn annot_reference_static_lifetime() {
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let c = 66;
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combine(
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SomeEnum::SomeVariant(Cell::new(&c)), //~ ERROR
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SomeEnum::SomeOtherVariant::<Cell<&'static u32>>,
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);
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}
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fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
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let c = 66;
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combine(
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SomeEnum::SomeVariant(Cell::new(&c)), //~ ERROR
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SomeEnum::SomeOtherVariant::<Cell<&'a u32>>,
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);
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}
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fn annot_reference_named_lifetime_ok<'a>(c: &'a u32) {
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combine(SomeEnum::SomeVariant(Cell::new(c)), SomeEnum::SomeOtherVariant::<Cell<&'a u32>>);
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}
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fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
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let _closure = || {
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let c = 66;
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combine(
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SomeEnum::SomeVariant(Cell::new(&c)), //~ ERROR
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SomeEnum::SomeOtherVariant::<Cell<&'a u32>>,
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);
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};
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}
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fn annot_reference_named_lifetime_in_closure_ok<'a>(c: &'a u32) {
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let _closure = || {
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combine(
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SomeEnum::SomeVariant(Cell::new(c)),
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SomeEnum::SomeOtherVariant::<Cell<&'a u32>>,
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);
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};
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}
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fn main() { }
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