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auto merge of #8188 : huonw/rust/cfg-macro, r=pcwalton

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Example:

    if cfg!(test) {
       calculation_to_run_only_when_testing();
    }

Closes #8130.
This commit is contained in:
bors 2013-08-02 03:52:51 -07:00
commit 2460170e6a
4 changed files with 83 additions and 0 deletions
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35
src/test/run-pass/syntax-extension-cfg.rs Normal file
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// Copyright 2013 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 compile-flags doesn't work with fast-check
// compile-flags: --cfg foo --cfg bar(baz) --cfg qux="foo"
fn main() {
// check
if ! cfg!(foo) { fail!() }
if cfg!(not(foo)) { fail!() }
if ! cfg!(bar(baz)) { fail!() }
if cfg!(not(bar(baz))) { fail!() }
if ! cfg!(qux="foo") { fail!() }
if cfg!(not(qux="foo")) { fail!() }
if ! cfg!(foo, bar(baz), qux="foo") { fail!() }
if cfg!(not(foo, bar(baz), qux="foo")) { fail!() }
if cfg!(not_a_cfg) { fail!() }
if cfg!(not_a_cfg, foo, bar(baz), qux="foo") { fail!() }
if ! cfg!(not(not_a_cfg)) { fail!() }
if ! cfg!(not(not_a_cfg), foo, bar(baz), qux="foo") { fail!() }
if cfg!(trailing_comma, ) { fail!() }
}