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// Copyright 2015 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 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Parsing patterns with paths with type parameters (issue #22544)
use std::default::Default;
#[derive(Default)]
pub struct Foo<T>(T, T);
impl<T: ::std::fmt::Display> Foo<T> {
fn foo(&self) {
match *self {
Foo::<T>(ref x, ref y) => println!("Goodbye, World! {} {}", x, y)
}
}
}
trait Tr {
type U;
}
impl<T> Tr for Foo<T> {
type U = T;
}
struct Wrapper<T> {
value: T
}
fn main() {
let Foo::<i32>(a, b) = Default::default();
let f = Foo(2,3);
f.foo();
let w = Wrapper { value: Foo(10u8, 11u8) };
match w {
Wrapper::<Foo<u8>> { value: Foo(10, 11) } => {},
::Wrapper::<<Foo<_> as Tr>::U> { value: Foo::<u8>(11, 16) } => { panic!() },
_ => { panic!() }
}
if let None::<u8> = Some(8) {
panic!();
}
if let None::<u8> { .. } = Some(8) {
panic!();
}
if let Option::None::<u8> { .. } = Some(8) {
panic!();
}
}
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