45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
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// Copyright 2012 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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// Tests that methods that implement a trait cannot be invoked
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// unless the trait is imported.
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mod Lib {
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pub trait TheTrait {
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fn the_fn(&self);
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}
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pub struct TheStruct;
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impl TheTrait for TheStruct {
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fn the_fn(&self) {}
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}
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}
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mod Import {
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// Trait is in scope here:
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use Lib::TheStruct;
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use Lib::TheTrait;
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fn call_the_fn(s: &TheStruct) {
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s.the_fn();
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}
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}
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mod NoImport {
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// Trait is not in scope here:
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use Lib::TheStruct;
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fn call_the_fn(s: &TheStruct) {
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s.the_fn(); //~ ERROR does not implement any method in scope named `the_fn`
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}
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}
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fn main() {}
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