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// Copyright 2014 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.
#![feature(collections, rand, into_cow, map_in_place, bitvec)]
#![allow(warnings)]
use std::borrow::{Cow, IntoCow};
use std::collections::BitVec;
use std::default::Default;
use std::iter::FromIterator;
use std::ops::Add;
use std::option::IntoIter as OptionIter;
pub struct XorShiftRng;
use XorShiftRng as DummyRng;
impl Rng for XorShiftRng {}
pub trait Rng {}
pub trait Rand: Default + Sized {
fn rand<R: Rng>(rng: &mut R) -> Self { Default::default() }
}
impl Rand for i32 { }
#[derive(PartialEq, Eq)]
struct Newt<T>(T);
fn id<T>(x: T) -> T { x }
fn eq<T: Eq>(a: T, b: T) -> bool { a == b }
fn u8_as_i8(x: u8) -> i8 { x as i8 }
fn odd(x: usize) -> bool { x % 2 == 1 }
fn dummy_rng() -> DummyRng { XorShiftRng }
trait Size: Sized {
fn size() -> usize { std::mem::size_of::<Self>() }
}
impl<T> Size for T {}
macro_rules! tests {
($($expr:expr, $ty:ty, ($($test:expr),*);)+) => (pub fn main() {$({
const C: $ty = $expr;
static S: $ty = $expr;
assert!(eq(C($($test),*), $expr($($test),*)));
assert!(eq(S($($test),*), $expr($($test),*)));
assert!(eq(C($($test),*), S($($test),*)));
})+})
}
tests! {
// Free function.
id, fn(i32) -> i32, (5);
id::<i32>, fn(i32) -> i32, (5);
// Enum variant constructor.
Some, fn(i32) -> Option<i32>, (5);
Some::<i32>, fn(i32) -> Option<i32>, (5);
// Tuple struct constructor.
Newt, fn(i32) -> Newt<i32>, (5);
Newt::<i32>, fn(i32) -> Newt<i32>, (5);
// Inherent static methods.
Vec::new, fn() -> Vec<()>, ();
Vec::<()>::new, fn() -> Vec<()>, ();
<Vec<()>>::new, fn() -> Vec<()>, ();
Vec::with_capacity, fn(usize) -> Vec<()>, (5);
Vec::<()>::with_capacity, fn(usize) -> Vec<()>, (5);
<Vec<()>>::with_capacity, fn(usize) -> Vec<()>, (5);
BitVec::from_fn, fn(usize, fn(usize) -> bool) -> BitVec, (5, odd);
BitVec::from_fn::<fn(usize) -> bool>, fn(usize, fn(usize) -> bool) -> BitVec, (5, odd);
// Inherent non-static method.
Vec::map_in_place, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>, (vec![b'f', b'o', b'o'], u8_as_i8);
Vec::map_in_place::<i8, fn(u8) -> i8>, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>,
(vec![b'f', b'o', b'o'], u8_as_i8);
Vec::<u8>::map_in_place, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>
, (vec![b'f', b'o', b'o'], u8_as_i8);
Vec::<u8>::map_in_place::<i8, fn(u8) -> i8>, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>
, (vec![b'f', b'o', b'o'], u8_as_i8);
// Trait static methods.
bool::size, fn() -> usize, ();
<bool>::size, fn() -> usize, ();
<bool as Size>::size, fn() -> usize, ();
Default::default, fn() -> i32, ();
i32::default, fn() -> i32, ();
<i32>::default, fn() -> i32, ();
<i32 as Default>::default, fn() -> i32, ();
Rand::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
i32::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
<i32>::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
<i32 as Rand>::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
Rand::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
i32::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
<i32>::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
<i32 as Rand>::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
// Trait non-static methods.
Clone::clone, fn(&i32) -> i32, (&5);
i32::clone, fn(&i32) -> i32, (&5);
<i32>::clone, fn(&i32) -> i32, (&5);
<i32 as Clone>::clone, fn(&i32) -> i32, (&5);
FromIterator::from_iter, fn(OptionIter<i32>) -> Vec<i32>, (Some(5).into_iter());
Vec::from_iter, fn(OptionIter<i32>) -> Vec<i32>, (Some(5).into_iter());
<Vec<_>>::from_iter, fn(OptionIter<i32>) -> Vec<i32>, (Some(5).into_iter());
<Vec<_> as FromIterator<_>>::from_iter, fn(OptionIter<i32>) -> Vec<i32>,
(Some(5).into_iter());
<Vec<i32> as FromIterator<_>>::from_iter, fn(OptionIter<i32>) -> Vec<i32>,
(Some(5).into_iter());
FromIterator::from_iter::<OptionIter<i32>>, fn(OptionIter<i32>) -> Vec<i32>,
(Some(5).into_iter());
<Vec<i32> as FromIterator<_>>::from_iter::<OptionIter<i32>>, fn(OptionIter<i32>) -> Vec<i32>,
(Some(5).into_iter());
Add::add, fn(i32, i32) -> i32, (5, 6);
i32::add, fn(i32, i32) -> i32, (5, 6);
<i32>::add, fn(i32, i32) -> i32, (5, 6);
<i32 as Add<_>>::add, fn(i32, i32) -> i32, (5, 6);
<i32 as Add<i32>>::add, fn(i32, i32) -> i32, (5, 6);
String::into_cow, fn(String) -> Cow<'static, str>,
("foo".to_string());
<String>::into_cow, fn(String) -> Cow<'static, str>,
("foo".to_string());
<String as IntoCow<_>>::into_cow, fn(String) -> Cow<'static, str>,
("foo".to_string());
<String as IntoCow<'static, _>>::into_cow, fn(String) -> Cow<'static, str>,
("foo".to_string());
}
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