#![feature(closure_lifetime_binder)] fn main() { // Implicit types let _ = for<> || {}; //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _ = for<'a> || -> &'a _ { &() }; //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _ = for<'a> |x| -> &'a () { x }; //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _ = for<'a> |x: &'a _| -> &'a () { x }; //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _ = for<'a> |x: &'a Vec::<_>| -> &'a Vec::<()> { x }; //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _ = for<'a> |x: &'a Vec<()>| -> &'a Vec<_> { x }; //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _ = for<'a> |x: &'a _| -> &'a &'a () { x }; //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _ = for<'a> |x: &'a _, y, z: _| -> &'a _ { //~ ERROR implicit types in closure signatures are forbidden when `for<...>` is present let _: &u8 = x; let _: u32 = y; let _: i32 = z; x }; // Lifetime elision let _ = for<> |_: &()| -> () {}; //~ ERROR `&` without an explicit lifetime name cannot be used here let _ = for<> |x: &()| -> &() { x }; //~ ERROR `&` without an explicit lifetime name cannot be used here //~| ERROR `&` without an explicit lifetime name cannot be used here let _ = for<> |x: &'_ ()| -> &'_ () { x }; //~ ERROR `'_` cannot be used here //~| ERROR `'_` cannot be used here let _ = for<'a> |x: &u8| -> &'a () { x }; //~ ERROR `&` without an explicit lifetime name cannot be used here let _ = for<'a> |x: &'a ()| -> &() { x }; //~ ERROR `&` without an explicit lifetime name cannot be used here //~^ ERROR: lifetime may not live long enough }