1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
12 #![feature(collections, rand, into_cow)]
14 use std::borrow::{Cow, IntoCow};
15 use std::collections::BitVec;
16 use std::default::Default;
17 use std::iter::FromIterator;
19 use std::option::IntoIter as OptionIter;
21 pub struct XorShiftRng;
22 use XorShiftRng as DummyRng;
23 impl Rng for XorShiftRng {}
25 pub trait Rand: Default + Sized {
26 fn rand<R: Rng>(rng: &mut R) -> Self { Default::default() }
30 #[derive(PartialEq, Eq)]
33 fn id<T>(x: T) -> T { x }
34 fn eq<T: Eq>(a: T, b: T) -> bool { a == b }
35 fn u8_as_i8(x: u8) -> i8 { x as i8 }
36 fn odd(x: usize) -> bool { x % 2 == 1 }
37 fn dummy_rng() -> DummyRng { XorShiftRng }
40 fn size() -> usize { std::mem::size_of::<Self>() }
45 ($($expr:expr, $ty:ty, ($($test:expr),*);)+) => (pub fn main() {$({
47 static S: $ty = $expr;
48 assert!(eq(C($($test),*), $expr($($test),*)));
49 assert!(eq(S($($test),*), $expr($($test),*)));
50 assert!(eq(C($($test),*), S($($test),*)));
56 id, fn(i32) -> i32, (5);
57 id::<i32>, fn(i32) -> i32, (5);
59 // Enum variant constructor.
60 Some, fn(i32) -> Option<i32>, (5);
61 Some::<i32>, fn(i32) -> Option<i32>, (5);
63 // Tuple struct constructor.
64 Newt, fn(i32) -> Newt<i32>, (5);
65 Newt::<i32>, fn(i32) -> Newt<i32>, (5);
67 // Inherent static methods.
68 Vec::new, fn() -> Vec<()>, ();
69 Vec::<()>::new, fn() -> Vec<()>, ();
70 <Vec<()>>::new, fn() -> Vec<()>, ();
71 Vec::with_capacity, fn(usize) -> Vec<()>, (5);
72 Vec::<()>::with_capacity, fn(usize) -> Vec<()>, (5);
73 <Vec<()>>::with_capacity, fn(usize) -> Vec<()>, (5);
74 BitVec::from_fn, fn(usize, fn(usize) -> bool) -> BitVec, (5, odd);
75 BitVec::from_fn::<fn(usize) -> bool>, fn(usize, fn(usize) -> bool) -> BitVec, (5, odd);
77 // Inherent non-static method.
78 Vec::map_in_place, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>, (vec![b'f', b'o', b'o'], u8_as_i8);
79 Vec::map_in_place::<i8, fn(u8) -> i8>, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>,
80 (vec![b'f', b'o', b'o'], u8_as_i8);
81 Vec::<u8>::map_in_place, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>
82 , (vec![b'f', b'o', b'o'], u8_as_i8);
83 Vec::<u8>::map_in_place::<i8, fn(u8) -> i8>, fn(Vec<u8>, fn(u8) -> i8) -> Vec<i8>
84 , (vec![b'f', b'o', b'o'], u8_as_i8);
86 // Trait static methods.
87 bool::size, fn() -> usize, ();
88 <bool>::size, fn() -> usize, ();
89 <bool as Size>::size, fn() -> usize, ();
91 Default::default, fn() -> i32, ();
92 i32::default, fn() -> i32, ();
93 <i32>::default, fn() -> i32, ();
94 <i32 as Default>::default, fn() -> i32, ();
96 Rand::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
97 i32::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
98 <i32>::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
99 <i32 as Rand>::rand, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
100 Rand::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
101 i32::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
102 <i32>::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
103 <i32 as Rand>::rand::<DummyRng>, fn(&mut DummyRng) -> i32, (&mut dummy_rng());
105 // Trait non-static methods.
106 Clone::clone, fn(&i32) -> i32, (&5);
107 i32::clone, fn(&i32) -> i32, (&5);
108 <i32>::clone, fn(&i32) -> i32, (&5);
109 <i32 as Clone>::clone, fn(&i32) -> i32, (&5);
111 FromIterator::from_iter, fn(OptionIter<i32>) -> Vec<i32>, (Some(5).into_iter());
112 Vec::from_iter, fn(OptionIter<i32>) -> Vec<i32>, (Some(5).into_iter());
113 <Vec<_>>::from_iter, fn(OptionIter<i32>) -> Vec<i32>, (Some(5).into_iter());
114 <Vec<_> as FromIterator<_>>::from_iter, fn(OptionIter<i32>) -> Vec<i32>,
115 (Some(5).into_iter());
116 <Vec<i32> as FromIterator<_>>::from_iter, fn(OptionIter<i32>) -> Vec<i32>,
117 (Some(5).into_iter());
118 FromIterator::from_iter::<OptionIter<i32>>, fn(OptionIter<i32>) -> Vec<i32>,
119 (Some(5).into_iter());
120 <Vec<i32> as FromIterator<_>>::from_iter::<OptionIter<i32>>, fn(OptionIter<i32>) -> Vec<i32>,
121 (Some(5).into_iter());
123 Add::add, fn(i32, i32) -> i32, (5, 6);
124 i32::add, fn(i32, i32) -> i32, (5, 6);
125 <i32>::add, fn(i32, i32) -> i32, (5, 6);
126 <i32 as Add<_>>::add, fn(i32, i32) -> i32, (5, 6);
127 <i32 as Add<i32>>::add, fn(i32, i32) -> i32, (5, 6);
129 String::into_cow, fn(String) -> Cow<'static, str>,
131 <String>::into_cow, fn(String) -> Cow<'static, str>,
133 <String as IntoCow<_>>::into_cow, fn(String) -> Cow<'static, str>,
135 <String as IntoCow<'static, _>>::into_cow, fn(String) -> Cow<'static, str>,