rust/src/test/run-pass/sync-send-iterators-in-libcollections.rs
2015-04-01 11:22:39 -04:00

101 lines
3.3 KiB
Rust

// 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.
// pretty-expanded FIXME #23616
#![allow(unused_mut)]
#![feature(collections)]
extern crate collections;
use collections::BinaryHeap;
use collections::{BitSet, BitVec};
use collections::{BTreeMap, BTreeSet};
use collections::EnumSet;
use collections::LinkedList;
use collections::Vec;
use collections::VecDeque;
use collections::VecMap;
use collections::Bound::Included;
use collections::enum_set::CLike;
use std::mem;
fn is_sync<T>(_: T) where T: Sync {}
fn is_send<T>(_: T) where T: Send {}
macro_rules! all_sync_send {
($ctor:expr, $($iter:ident),+) => ({
$(
let mut x = $ctor;
is_sync(x.$iter());
let mut y = $ctor;
is_send(y.$iter());
)+
})
}
macro_rules! is_sync_send {
($ctor:expr, $iter:ident($($param:expr),+)) => ({
let mut x = $ctor;
is_sync(x.$iter($( $param ),+));
let mut y = $ctor;
is_send(y.$iter($( $param ),+));
})
}
fn main() {
// The iterator "generator" list should exhaust what corresponding
// implementations have where `Sync` and `Send` semantics apply.
all_sync_send!(BinaryHeap::<usize>::new(), iter, drain, into_iter);
all_sync_send!(BitVec::new(), iter);
all_sync_send!(BitSet::new(), iter);
is_sync_send!(BitSet::new(), union(&BitSet::new()));
is_sync_send!(BitSet::new(), intersection(&BitSet::new()));
is_sync_send!(BitSet::new(), difference(&BitSet::new()));
is_sync_send!(BitSet::new(), symmetric_difference(&BitSet::new()));
all_sync_send!(BTreeMap::<usize, usize>::new(), iter, iter_mut, into_iter, keys, values);
is_sync_send!(BTreeMap::<usize, usize>::new(), range(Included(&0), Included(&9)));
is_sync_send!(BTreeMap::<usize, usize>::new(), range_mut(Included(&0), Included(&9)));
all_sync_send!(BTreeSet::<usize>::new(), iter, into_iter);
is_sync_send!(BTreeSet::<usize>::new(), range(Included(&0), Included(&9)));
is_sync_send!(BTreeSet::<usize>::new(), difference(&BTreeSet::<usize>::new()));
is_sync_send!(BTreeSet::<usize>::new(), symmetric_difference(&BTreeSet::<usize>::new()));
is_sync_send!(BTreeSet::<usize>::new(), intersection(&BTreeSet::<usize>::new()));
is_sync_send!(BTreeSet::<usize>::new(), union(&BTreeSet::<usize>::new()));
all_sync_send!(LinkedList::<usize>::new(), iter, iter_mut, into_iter);
#[derive(Copy, Clone)]
#[repr(usize)]
#[allow(dead_code)]
enum Foo { A, B, C }
impl CLike for Foo {
fn to_usize(&self) -> usize {
*self as usize
}
fn from_usize(v: usize) -> Foo {
unsafe { mem::transmute(v) }
}
}
all_sync_send!(EnumSet::<Foo>::new(), iter);
all_sync_send!(VecDeque::<usize>::new(), iter, iter_mut, drain, into_iter);
all_sync_send!(VecMap::<usize>::new(), iter, iter_mut, drain, into_iter, keys, values);
all_sync_send!(Vec::<usize>::new(), into_iter, drain);
}