OpenE2K/rust
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Unstable default types leak in public fields

Browse Source
This commit is contained in:
Avi Dessauer 2020-06-01 11:51:35 -04:00 committed by Jacob Hughes
parent 88b77b6534
commit eb7abb9e32
1 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/test/ui/stability-attribute/generics-default-stability.rs
View File

@ -32,18 +32,22 @@ impl Trait3<usize> for S {
fn main() {
let _ = S;
let _ = Struct1 { field: 1 }; // ERROR use of unstable library feature 'unstable_default'
let _: Struct1 = Struct1 { field: 1 }; // ERROR use of unstable library feature 'unstable_default'
let _: Struct1<isize> = Struct1 { field: 1 }; //~ ERROR use of unstable library feature 'unstable_default'
let _ = STRUCT1; // ok
let _: Struct1 = STRUCT1; // ok
let _: Struct1<usize> = STRUCT1; //~ ERROR use of unstable library feature 'unstable_default'
let _: Struct1<usize> = STRUCT1; //~ ERROR use of unstable library feature 'unstable_default'
let _ = STRUCT1.field; // ok
let _: usize = STRUCT1.field; // ERROR use of unstable library feature 'unstable_default'
let _ = STRUCT1.field + 1; // ERROR use of unstable library feature 'unstable_default'
let _ = STRUCT1.field + 1usize; // ERROR use of unstable library feature 'unstable_default'
let _: Struct1<isize> = STRUCT1; //~ ERROR use of unstable library feature 'unstable_default'
// Instability is not enforced for generic type parameters used in public fields.
// Note how the unstable type default `usize` leaks,
// and can be used without the 'unstable_default' feature.
let _ = STRUCT1.field;
let _ = Struct1 { field: 1 };
let _: Struct1 = Struct1 { field: 1 };
let _: usize = STRUCT1.field;
let _ = STRUCT1.field + 1;
let _ = STRUCT1.field + 1usize;
let _ = Struct2 { field: 1 }; // ok
let _: Struct2 = Struct2 { field: 1 }; // ok