tests/ui/nll/user-annotations/adt-tuple-enums.rs

   1 // Unit test for the "user substitutions" that are annotated on each
   2 // node.
   3
   4 #![allow(warnings)]
   5
   6 enum SomeEnum<T> {
   7     SomeVariant(T),
   8     SomeOtherVariant,
   9 }
  10
  11 fn no_annot() {
  12     let c = 66;
  13     SomeEnum::SomeVariant(&c);
  14 }
  15
  16 fn annot_underscore() {
  17     let c = 66;
  18     SomeEnum::SomeVariant::<_>(&c);
  19 }
  20
  21 fn annot_reference_any_lifetime() {
  22     let c = 66;
  23     SomeEnum::SomeVariant::<&u32>(&c);
  24 }
  25
  26 fn annot_reference_static_lifetime() {
  27     let c = 66;
  28     SomeEnum::SomeVariant::<&'static u32>(&c); //~ ERROR
  29 }
  30
  31 fn annot_reference_named_lifetime<'a>(_d: &'a u32) {
  32     let c = 66;
  33     SomeEnum::SomeVariant::<&'a u32>(&c); //~ ERROR
  34 }
  35
  36 fn annot_reference_named_lifetime_ok<'a>(c: &'a u32) {
  37     SomeEnum::SomeVariant::<&'a u32>(c);
  38 }
  39
  40 fn annot_reference_named_lifetime_in_closure<'a>(_: &'a u32) {
  41     let _closure = || {
  42         let c = 66;
  43         SomeEnum::SomeVariant::<&'a u32>(&c); //~ ERROR
  44     };
  45 }
  46
  47 fn annot_reference_named_lifetime_in_closure_ok<'a>(c: &'a u32) {
  48     let _closure = || {
  49         SomeEnum::SomeVariant::<&'a u32>(c);
  50     };
  51 }
  52
  53 fn main() { }