Error code E0627
A yield expression was used outside of the generator literal.
Erroneous code example:
#![feature(generators, generator_trait)] fn fake_generator() -> &'static str { yield 1; return "foo" } fn main() { let mut generator = fake_generator; }
The error occurs because keyword yield
can only be used inside the generator
literal. This can be fixed by constructing the generator correctly.
#![feature(generators, generator_trait)] fn main() { let mut generator = || { yield 1; return "foo" }; }