49 lines
1.3 KiB
Rust
49 lines
1.3 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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// xfail-pretty
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// (Closes #7911) Test that we can use the same self expression
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// with different mutability in macro in two methods
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#[allow(unused_variable)]; // unused foobar_immut + foobar_mut
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#[feature(macro_rules)];
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trait FooBar {}
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struct Bar(i32);
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struct Foo { bar: Bar }
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impl FooBar for Bar {}
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trait Test {
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fn get_immut<'r>(&'r self) -> &'r FooBar;
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fn get_mut<'r>(&'r mut self) -> &'r mut FooBar;
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}
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macro_rules! generate_test(($type_:path, $field:expr) => (
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impl Test for $type_ {
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fn get_immut<'r>(&'r self) -> &'r FooBar {
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&$field as &FooBar
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}
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fn get_mut<'r>(&'r mut self) -> &'r mut FooBar {
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&mut $field as &mut FooBar
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}
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}
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))
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generate_test!(Foo, self.bar)
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pub fn main() {
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let mut foo: Foo = Foo { bar: Bar(42) };
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{ let foobar_immut = foo.get_immut(); }
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{ let foobar_mut = foo.get_mut(); }
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}
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