// Copyright 2012 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // Tests that methods that implement a trait cannot be invoked // unless the trait is imported. mod Lib { pub trait TheTrait { fn the_fn(&self); } pub struct TheStruct; impl TheTrait for TheStruct { fn the_fn(&self) {} } } mod Import { // Trait is in scope here: use Lib::TheStruct; use Lib::TheTrait; fn call_the_fn(s: &TheStruct) { s.the_fn(); } } mod NoImport { // Trait is not in scope here: use Lib::TheStruct; fn call_the_fn(s: &TheStruct) { s.the_fn(); //~ ERROR does not implement any method in scope named `the_fn` } } fn main() {}