31 lines
930 B
Rust
31 lines
930 B
Rust
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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::fmt::Show;
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trait Something {
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fn yay<T: Show>(_: Option<Self>, thing: &[T]) -> String {
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}
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}
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struct X { data: u32 }
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impl Something for X {
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fn yay<T: Str>(_:Option<X>, thing: &[T]) -> String {
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//~^ ERROR in method `yay`, type parameter 0 requires bound `core::str::Str`, which is not required
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format!("{:s}", thing[0])
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}
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}
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fn main() {
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let arr = &["one", "two", "three"];
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println!("{}", Something::yay(None::<X>, arr));
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}
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