62 lines
2.3 KiB
Rust
62 lines
2.3 KiB
Rust
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#![crate_type = "rlib"]
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#![feature(generic_arg_infer)]
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struct Foo<const N: usize>;
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struct Bar<T, const N: usize>(T);
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fn arr_fn() -> [u8; _] {
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
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[0; 3]
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}
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fn ty_fn() -> Bar<i32, _> {
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
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Bar::<i32, 3>(0)
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}
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fn ty_fn_mixed() -> Bar<_, _> {
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
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Bar::<i32, 3>(0)
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}
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const ARR_CT: [u8; _] = [0; 3];
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
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static ARR_STATIC: [u8; _] = [0; 3];
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
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const TY_CT: Bar<i32, _> = Bar::<i32, 3>(0);
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
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static TY_STATIC: Bar<i32, _> = Bar::<i32, 3>(0);
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
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const TY_CT_MIXED: Bar<_, _> = Bar::<i32, 3>(0);
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
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static TY_STATIC_MIXED: Bar<_, _> = Bar::<i32, 3>(0);
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
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trait ArrAssocConst {
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const ARR: [u8; _];
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
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}
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trait TyAssocConst {
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const ARR: Bar<i32, _>;
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
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}
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trait TyAssocConstMixed {
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const ARR: Bar<_, _>;
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
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}
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trait AssocTy {
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type Assoc;
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}
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impl AssocTy for i8 {
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type Assoc = [u8; _];
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
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}
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impl AssocTy for i16 {
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type Assoc = Bar<i32, _>;
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
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}
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impl AssocTy for i32 {
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type Assoc = Bar<_, _>;
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//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
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}
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