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// 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-test - this isn't really a test.
{
// select!
macro_rules! select_if (
{
$index:expr,
$count:expr
} => {
fail!()
};
{
$index:expr,
$count:expr,
$port:path => [
$(type_this $message:path$(($(x $x: ident),+))dont_type_this*
-> $next:ident => { $e:expr }),+
]
$(, $ports:path => [
$(type_this $messages:path$(($(x $xs: ident),+))dont_type_this*
-> $nexts:ident => { $es:expr }),+
] )*
} => {
if $index == $count {
match pipes::try_recv($port) {
$(Some($message($($($x,)+)* next)) => {
let $next = next;
$e
})+
_ => fail!()
}
} else {
select_if!(
$index,
$count + 1
$(, $ports => [
$(type_this $messages$(($(x $xs),+))dont_type_this*
-> $nexts => { $es }),+
])*
)
}
};
)
macro_rules! select (
{
$( $port:path => {
$($message:path$(($($x: ident),+))dont_type_this*
-> $next:ident $e:expr),+
} )+
} => {
let index = pipes::selecti([$(($port).header()),+]);
select_if!(index, 0 $(, $port => [
$(type_this $message$(($(x $x),+))dont_type_this* -> $next => { $e }),+
])+)
}
)
}
|
