Add tests for some default method things.
This commit is contained in:
parent
c05165bf93
commit
9340fd5ce0
24
src/test/compile-fail/impl-bounds-checking.rs
Normal file
24
src/test/compile-fail/impl-bounds-checking.rs
Normal file
@ -0,0 +1,24 @@
|
||||
// Copyright 2013 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.
|
||||
|
||||
pub trait Clone2 {
|
||||
fn clone(&self) -> Self;
|
||||
}
|
||||
|
||||
|
||||
trait Getter<T: Clone2> {
|
||||
fn get(&self) -> T;
|
||||
}
|
||||
|
||||
impl Getter<int> for int { //~ ERROR failed to find an implementation of trait Clone2 for int
|
||||
fn get(&self) -> int { *self }
|
||||
}
|
||||
|
||||
fn main() { }
|
45
src/test/run-pass/bug-7183-generics.rs
Normal file
45
src/test/run-pass/bug-7183-generics.rs
Normal file
@ -0,0 +1,45 @@
|
||||
// Copyright 2013 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.
|
||||
|
||||
#[allow(default_methods)]
|
||||
trait Speak {
|
||||
fn say(&self, s:&str) -> ~str;
|
||||
fn hi(&self) -> ~str { hello(self) }
|
||||
}
|
||||
|
||||
fn hello<S:Speak>(s:&S) -> ~str{
|
||||
s.say("hello")
|
||||
}
|
||||
|
||||
impl Speak for int {
|
||||
fn say(&self, s:&str) -> ~str {
|
||||
fmt!("%s: %d", s, *self)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Speak> Speak for Option<T> {
|
||||
fn say(&self, s:&str) -> ~str {
|
||||
match *self {
|
||||
None => fmt!("%s - none", s),
|
||||
Some(ref x) => { ~"something!" + x.say(s) }
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
fn main() {
|
||||
assert_eq!(3.hi(), ~"hello: 3");
|
||||
assert_eq!(Some(Some(3)).hi(), ~"something!something!hello: 3");
|
||||
assert_eq!(None::<int>.hi(), ~"hello - none");
|
||||
|
||||
// These fail because of a bug in monomorphization's ID generation.
|
||||
//assert_eq!(Some(None::<int>).hi(), ~"something!hello - none");
|
||||
//assert_eq!(Some(3).hi(), ~"something!hello: 3");
|
||||
}
|
41
src/test/run-pass/trait-with-bounds-default.rs
Normal file
41
src/test/run-pass/trait-with-bounds-default.rs
Normal file
@ -0,0 +1,41 @@
|
||||
// Copyright 2013 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.
|
||||
|
||||
pub trait Clone2 {
|
||||
/// Returns a copy of the value. The contents of owned pointers
|
||||
/// are copied to maintain uniqueness, while the contents of
|
||||
/// managed pointers are not copied.
|
||||
fn clone(&self) -> Self;
|
||||
}
|
||||
|
||||
#[allow(default_methods)]
|
||||
trait Getter<T: Clone> {
|
||||
fn do_get(&self) -> T;
|
||||
|
||||
fn do_get2(&self) -> (T, T) {
|
||||
let x = self.do_get();
|
||||
(x.clone(), x.clone())
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
impl Getter<int> for int {
|
||||
fn do_get(&self) -> int { *self }
|
||||
}
|
||||
|
||||
impl<T: Clone> Getter<T> for Option<T> {
|
||||
fn do_get(&self) -> T { self.get_ref().clone() }
|
||||
}
|
||||
|
||||
|
||||
fn main() {
|
||||
assert_eq!(3.do_get2(), (3, 3));
|
||||
assert_eq!(Some(~"hi").do_get2(), (~"hi", ~"hi"));
|
||||
}
|
Loading…
x
Reference in New Issue
Block a user