diff options
Diffstat (limited to 'src/test/ui/rfcs/rfc1623-2.rs')
-rw-r--r-- | src/test/ui/rfcs/rfc1623-2.rs | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/src/test/ui/rfcs/rfc1623-2.rs b/src/test/ui/rfcs/rfc1623-2.rs deleted file mode 100644 index c0e13a5f5..000000000 --- a/src/test/ui/rfcs/rfc1623-2.rs +++ /dev/null @@ -1,99 +0,0 @@ -#![allow(dead_code)] - -fn non_elidable<'a, 'b>(a: &'a u8, b: &'b u8) -> &'a u8 { - a -} - -// The incorrect case without `for<'a>` is tested for in `rfc1623-2.rs` -static NON_ELIDABLE_FN: &for<'a> fn(&'a u8, &'a u8) -> &'a u8 = - &(non_elidable as for<'a> fn(&'a u8, &'a u8) -> &'a u8); - -struct SomeStruct<'x, 'y, 'z: 'x> { - foo: &'x Foo<'z>, - bar: &'x Bar<'z>, - f: &'y dyn for<'a, 'b> Fn(&'a Foo<'b>) -> &'a Foo<'b>, -} - -// Without this, the wf-check will fail early so we'll never see the -// error in SOME_STRUCT's body. -unsafe impl<'x, 'y, 'z: 'x> Sync for SomeStruct<'x, 'y, 'z> {} - -fn id<T>(t: T) -> T { - t -} - -static SOME_STRUCT: &SomeStruct = &SomeStruct { - foo: &Foo { bools: &[false, true] }, - bar: &Bar { bools: &[true, true] }, - f: &id, - //~^ ERROR mismatched types - //~| ERROR mismatched types - //~| ERROR implementation of `FnOnce` is not general enough - //~| ERROR implementation of `FnOnce` is not general enough -}; - -// very simple test for a 'static static with default lifetime -static STATIC_STR: &'static str = "&'static str"; -const CONST_STR: &'static str = "&'static str"; - -// this should be the same as without default: -static EXPLICIT_STATIC_STR: &'static str = "&'static str"; -const EXPLICIT_CONST_STR: &'static str = "&'static str"; - -// a function that elides to an unbound lifetime for both in- and output -fn id_u8_slice(arg: &[u8]) -> &[u8] { - arg -} - -// one with a function, argument elided -static STATIC_SIMPLE_FN: &'static fn(&[u8]) -> &[u8] = &(id_u8_slice as fn(&[u8]) -> &[u8]); -const CONST_SIMPLE_FN: &'static fn(&[u8]) -> &[u8] = &(id_u8_slice as fn(&[u8]) -> &[u8]); - -// this should be the same as without elision -static STATIC_NON_ELIDED_fN: &'static for<'a> fn(&'a [u8]) -> &'a [u8] = - &(id_u8_slice as for<'a> fn(&'a [u8]) -> &'a [u8]); -const CONST_NON_ELIDED_fN: &'static for<'a> fn(&'a [u8]) -> &'a [u8] = - &(id_u8_slice as for<'a> fn(&'a [u8]) -> &'a [u8]); - -// another function that elides, each to a different unbound lifetime -fn multi_args(a: &u8, b: &u8, c: &u8) {} - -static STATIC_MULTI_FN: &'static fn(&u8, &u8, &u8) = &(multi_args as fn(&u8, &u8, &u8)); -const CONST_MULTI_FN: &'static fn(&u8, &u8, &u8) = &(multi_args as fn(&u8, &u8, &u8)); - -struct Foo<'a> { - bools: &'a [bool], -} - -static STATIC_FOO: Foo<'static> = Foo { bools: &[true, false] }; -const CONST_FOO: Foo<'static> = Foo { bools: &[true, false] }; - -type Bar<'a> = Foo<'a>; - -static STATIC_BAR: Bar<'static> = Bar { bools: &[true, false] }; -const CONST_BAR: Bar<'static> = Bar { bools: &[true, false] }; - -type Baz<'a> = fn(&'a [u8]) -> Option<u8>; - -fn baz(e: &[u8]) -> Option<u8> { - e.first().map(|x| *x) -} - -static STATIC_BAZ: &'static Baz<'static> = &(baz as Baz); -const CONST_BAZ: &'static Baz<'static> = &(baz as Baz); - -static BYTES: &'static [u8] = &[1, 2, 3]; - -fn main() { - let x = &[1u8, 2, 3]; - let y = x; - - // this works, so lifetime < `'static` is valid - assert_eq!(Some(1), STATIC_BAZ(y)); - assert_eq!(Some(1), CONST_BAZ(y)); - - let y = &[1u8, 2, 3]; - - STATIC_BAZ(BYTES); // BYTES has static lifetime - CONST_BAZ(y); // interestingly this does not get reported -} |