15 lines
415 B
Rust
15 lines
415 B
Rust
trait VecMonad<A> {
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fn bind<B, F>(&self, f: F) where F: FnMut(A) -> Vec<B>;
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}
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impl<A> VecMonad<A> for Vec<A> {
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fn bind<B, F>(&self, mut f: F) where F: FnMut(A) -> Vec<B> {
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let mut r = panic!();
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for elt in self { r = r + f(*elt); }
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//~^ ERROR E0277
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}
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}
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fn main() {
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["hi"].bind(|x| [x] );
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//~^ ERROR no method named `bind` found for type `[&str; 1]` in the current scope
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}
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