rust/src/test/run-pass/weird-exprs.rs

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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.
// Just a grab bag of stuff that you wouldn't want to actually write.
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fn strange() -> bool { let _x: bool = return true; }
fn funny() {
fn f(_x: ()) { }
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f(return);
}
fn what() {
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fn the(x: @mut bool) { return while !*x { *x = true; }; }
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let i = @mut false;
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let dont = {||the(i)};
dont();
fail_unless!((*i));
}
fn zombiejesus() {
loop {
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while (return) {
if (return) {
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match (return) {
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1 => {
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if (return) {
return
} else {
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return
}
}
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_ => { return }
};
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} else if (return) {
return;
}
}
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if (return) { break; }
}
}
fn notsure() {
let mut _x;
let mut _y = (_x = 0) == (_x = 0);
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let mut _z = (_x = 0) < (_x = 0);
let _a = (_x += 0) == (_x = 0);
let _b = (_y <-> _z) == (_y <-> _z);
}
fn canttouchthis() -> uint {
fn p() -> bool { true }
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let _a = (fail_unless!((true)) == (fail_unless!(p())));
let _c = (fail_unless!((p())) == ());
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let _b: bool = (debug!("%d", 0) == (return 0u));
}
fn angrydome() {
loop { if break { } }
let mut i = 0;
loop { i += 1; if i == 1 { match (loop) { 1 => { }, _ => fail!(~"wat") } }
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break; }
}
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fn evil_lincoln() { let evil = debug!("lincoln"); }
pub fn main() {
strange();
funny();
what();
zombiejesus();
notsure();
canttouchthis();
angrydome();
evil_lincoln();
}