rust/src/test/run-pass/task-comm-3.rs
Niko Matsakis 0682ad0eb9 Finalize moves-based-on-type implementation.
Changes:

- Refactor move mode computation
- Removes move mode arguments, unary move, capture clauses
  (though they still parse for backwards compatibility)
- Simplify how moves are handled in trans
- Fix a number of illegal copies that cropped up
- Workaround for bug involving def-ids in params
  (see details below)

Future work (I'll open bugs for these...):

- Improve error messages for moves that are due
  to bindings
- Add support for moving owned content like a.b.c
  to borrow check, test in trans (but I think it'll
  "just work")
- Proper fix for def-ids in params

Def ids in params:

Move captures into a map instead of recomputing.

This is a workaround for a larger bug having to do with the def-ids associated
with ty_params, which are not always properly preserved when inlining.  I am
not sure of my preferred fix for the larger bug yet.  This current fix removes
the only code in trans that I know of which relies on ty_param def-ids, but
feels fragile.
2013-01-31 12:09:00 -08:00

75 lines
1.9 KiB
Rust

// Copyright 2012 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.
// xfail-fast
#[legacy_modes];
extern mod std;
use pipes::Chan;
use pipes::send;
use pipes::recv;
fn main() { debug!("===== WITHOUT THREADS ====="); test00(); }
fn test00_start(ch: Chan<int>, message: int, count: int) {
debug!("Starting test00_start");
let mut i: int = 0;
while i < count {
debug!("Sending Message");
ch.send(message + 0);
i = i + 1;
}
debug!("Ending test00_start");
}
fn test00() {
let number_of_tasks: int = 16;
let number_of_messages: int = 4;
debug!("Creating tasks");
let po = pipes::PortSet();
let mut i: int = 0;
// Create and spawn tasks...
let mut results = ~[];
while i < number_of_tasks {
let ch = po.chan();
task::task().future_result(|+r| {
results.push(move r);
}).spawn({
let i = i;
|move ch| test00_start(ch, i, number_of_messages)
});
i = i + 1;
}
// Read from spawned tasks...
let mut sum = 0;
for results.each |r| {
i = 0;
while i < number_of_messages {
let value = po.recv();
sum += value;
i = i + 1;
}
}
// Join spawned tasks...
for results.each |r| { r.recv(); }
debug!("Completed: Final number is: ");
log(error, sum);
// assert (sum == (((number_of_tasks * (number_of_tasks - 1)) / 2) *
// number_of_messages));
assert (sum == 480);
}