rust/tests/ui/closures/closure-bounds-cant-promote-superkind-in-struct.rs

13 lines
282 B
Rust

struct X<F> where F: FnOnce() + 'static + Send {
field: F,
}
fn foo<F>(blk: F) -> X<F> where F: FnOnce() + 'static {
//~^ ERROR `F` cannot be sent between threads safely
return X { field: blk };
//~^ ERROR `F` cannot be sent between threads safely
}
fn main() {
}