#![allow(dead_code)] // tons of unused statics here... // very simple test for a 'static static with default lifetime static STATIC_STR: &str = "&'static str"; const CONST_STR: &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: &fn(&[u8]) -> &[u8] = &(id_u8_slice as fn(&[u8]) -> &[u8]); const CONST_SIMPLE_FN: &fn(&[u8]) -> &[u8] = &(id_u8_slice as fn(&[u8]) -> &[u8]); // this should be the same as without elision static STATIC_NON_ELIDED_FN: &for<'a> fn(&'a [u8]) -> &'a [u8] = &(id_u8_slice as for<'a> fn(&'a [u8]) -> &'a [u8]); const CONST_NON_ELIDED_FN: &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: &fn(&u8, &u8, &u8) = &(multi_args as fn(&u8, &u8, &u8)); const CONST_MULTI_FN: &fn(&u8, &u8, &u8) = &(multi_args as fn(&u8, &u8, &u8)); struct Foo<'a> { bools: &'a [bool], } static STATIC_FOO: Foo = Foo { bools: &[true, false] }; const CONST_FOO: Foo = Foo { bools: &[true, false] }; type Bar<'a> = Foo<'a>; static STATIC_BAR: Bar = Bar { bools: &[true, false] }; const CONST_BAR: Bar = 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: &Baz = &(baz as Baz); const CONST_BAZ: &Baz = &(baz as Baz); static BYTES: &[u8] = &[1, 2, 3]; fn main() { // make sure that the lifetime is actually elided (and not defaulted) let x = &[1u8, 2, 3]; STATIC_SIMPLE_FN(x); CONST_SIMPLE_FN(x); STATIC_BAZ(BYTES); // neees static lifetime CONST_BAZ(BYTES); // make sure this works with different lifetimes let a = &1; { let b = &2; let c = &3; CONST_MULTI_FN(a, b, c); } }