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Diffstat (limited to 'src/components/macros/macros.rs')
-rw-r--r-- | src/components/macros/macros.rs | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/src/components/macros/macros.rs b/src/components/macros/macros.rs deleted file mode 100644 index fabfc8bb7c0..00000000000 --- a/src/components/macros/macros.rs +++ /dev/null @@ -1,96 +0,0 @@ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#![crate_name = "macros"] -#![crate_type = "rlib"] - -#![feature(macro_rules)] - -//! Exports macros for use in other Servo crates. - -#[cfg(test)] -extern crate sync; - - -#[macro_export] -macro_rules! bitfield( - ($bitfieldname:ident, $getter:ident, $setter:ident, $value:expr) => ( - impl $bitfieldname { - #[inline] - pub fn $getter(self) -> bool { - let $bitfieldname(this) = self; - (this & $value) != 0 - } - - #[inline] - pub fn $setter(&mut self, value: bool) { - let $bitfieldname(this) = *self; - *self = $bitfieldname((this & !$value) | (if value { $value } else { 0 })) - } - } - ) -) - - -#[macro_export] -macro_rules! lazy_init( - ($(static ref $N:ident : $T:ty = $e:expr;)*) => ( - $( - #[allow(non_camel_case_types)] - struct $N {__unit__: ()} - static $N: $N = $N {__unit__: ()}; - impl Deref<$T> for $N { - fn deref<'a>(&'a self) -> &'a $T { - unsafe { - static mut s: *const $T = 0 as *const $T; - static mut ONCE: ::sync::one::Once = ::sync::one::ONCE_INIT; - ONCE.doit(|| { - s = ::std::mem::transmute::<Box<$T>, *const $T>(box () ($e)); - }); - &*s - } - } - } - - )* - ) -) - - -#[cfg(test)] -mod tests { - use std::collections::hashmap::HashMap; - lazy_init! { - static ref NUMBER: uint = times_two(3); - static ref VEC: [Box<uint>, ..3] = [box 1, box 2, box 3]; - static ref OWNED_STRING: String = "hello".to_string(); - static ref HASHMAP: HashMap<uint, &'static str> = { - let mut m = HashMap::new(); - m.insert(0u, "abc"); - m.insert(1, "def"); - m.insert(2, "ghi"); - m - }; - } - - fn times_two(n: uint) -> uint { - n * 2 - } - - #[test] - fn test_basic() { - assert_eq!(*OWNED_STRING, "hello".to_string()); - assert_eq!(*NUMBER, 6); - assert!(HASHMAP.find(&1).is_some()); - assert!(HASHMAP.find(&3).is_none()); - assert_eq!(VEC.as_slice(), &[box 1, box 2, box 3]); - } - - #[test] - fn test_repeat() { - assert_eq!(*NUMBER, 6); - assert_eq!(*NUMBER, 6); - assert_eq!(*NUMBER, 6); - } -} |