2012-07-12 00:00:40 +02:00
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trait vec_monad<A> {
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fn bind<B>(f: fn(A) -> ~[B]);
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}
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2012-08-08 03:10:06 +02:00
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impl<A> ~[A]: vec_monad<A> {
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2012-06-30 01:26:56 +02:00
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fn bind<B>(f: fn(A) -> ~[B]) {
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2012-04-08 02:11:33 +02:00
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let mut r = fail;
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2012-09-20 01:55:01 +02:00
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for self.each |elt| { r += f(*elt); }
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2012-06-30 13:23:59 +02:00
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//~^ WARNING unreachable expression
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//~^^ ERROR the type of this value must be known
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2012-04-08 02:11:33 +02:00
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}
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}
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fn main() {
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2012-12-02 00:59:04 +01:00
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["hi"].bind({|x| [x] }); //~ ERROR type `[&static/str]/1` does not implement any method in scope named `bind`
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2012-07-12 00:00:40 +02:00
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}
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