27 lines
691 B
Rust
27 lines
691 B
Rust
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// This test exercises lending behavior for iterator closures which is not yet supported.
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#![feature(iter_macro, yield_expr)]
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use std::iter::iter;
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fn main() {
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let f = {
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let s = "foo".to_string();
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iter! { move || {
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for c in s.chars() {
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yield c;
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}
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}}
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};
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let mut i = f();
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assert_eq!(i.next(), Some('f'));
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assert_eq!(i.next(), Some('o'));
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assert_eq!(i.next(), Some('o'));
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assert_eq!(i.next(), None);
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let mut i = f(); //~ ERROR use of moved value: `f`
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assert_eq!(i.next(), Some('f'));
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assert_eq!(i.next(), Some('o'));
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assert_eq!(i.next(), Some('o'));
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assert_eq!(i.next(), None);
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}
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