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//@ run-pass
// (Closes #7911) Test that we can use the same self expression
// with different mutability in macro in two methods
#![allow(unused_variables)] // unused foobar_immut + foobar_mut
trait FooBar {
fn dummy(&self) { } //~ WARN method `dummy` is never used
}
struct Bar(#[allow(dead_code)] i32);
struct Foo { bar: Bar }
impl FooBar for Bar {}
trait Test {
fn get_immut(&self) -> &dyn FooBar;
fn get_mut(&mut self) -> &mut dyn FooBar;
}
macro_rules! generate_test { ($type_:path, $slf:ident, $field:expr) => (
impl Test for $type_ {
fn get_immut(&$slf) -> &dyn FooBar {
&$field as &dyn FooBar
}
fn get_mut(&mut $slf) -> &mut dyn FooBar {
&mut $field as &mut dyn FooBar
}
}
)}
generate_test!(Foo, self, self.bar);
pub fn main() {
let mut foo: Foo = Foo { bar: Bar(42) };
{ let foobar_immut = foo.get_immut(); }
{ let foobar_mut = foo.get_mut(); }
}
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