Jack Moffitt
7ddceb0c98
We can no longer transmute from type params, so we must expand the default methods that do this into all the places that implement the trait. Yuck.
91 lines
2.1 KiB
Rust
91 lines
2.1 KiB
Rust
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! A Boolean type.
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use base::{CFRelease, CFRetain, CFTypeID, CFTypeRef, TCFType};
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use std::mem;
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pub type Boolean = u32;
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struct __CFBoolean;
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pub type CFBooleanRef = *__CFBoolean;
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/// A Boolean type.
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///
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/// FIXME(pcwalton): Should be a newtype struct, but that fails due to a Rust compiler bug.
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pub struct CFBoolean {
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obj: CFBooleanRef,
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}
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impl Drop for CFBoolean {
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fn drop(&mut self) {
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unsafe {
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CFRelease(self.as_CFTypeRef())
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}
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}
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}
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impl TCFType<CFBooleanRef> for CFBoolean {
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#[inline]
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fn as_concrete_TypeRef(&self) -> CFBooleanRef {
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self.obj
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}
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#[inline]
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unsafe fn wrap_under_get_rule(reference: CFBooleanRef) -> CFBoolean {
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let reference: CFBooleanRef = mem::transmute(CFRetain(mem::transmute(reference)));
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TCFType::wrap_under_create_rule(reference)
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}
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#[inline]
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fn as_CFTypeRef(&self) -> CFTypeRef {
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unsafe {
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mem::transmute(self.as_concrete_TypeRef())
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}
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}
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unsafe fn wrap_under_create_rule(obj: CFBooleanRef) -> CFBoolean {
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CFBoolean {
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obj: obj,
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}
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}
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#[inline]
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fn type_id(_: Option<CFBoolean>) -> CFTypeID {
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unsafe {
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CFBooleanGetTypeID()
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}
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}
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}
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impl CFBoolean {
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pub fn true_value() -> CFBoolean {
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unsafe {
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TCFType::wrap_under_get_rule(kCFBooleanTrue)
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}
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}
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pub fn false_value() -> CFBoolean {
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unsafe {
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TCFType::wrap_under_get_rule(kCFBooleanFalse)
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}
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}
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}
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#[link(name = "CoreFoundation", kind = "framework")]
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extern {
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static kCFBooleanTrue: CFBooleanRef;
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static kCFBooleanFalse: CFBooleanRef;
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fn CFBooleanGetTypeID() -> CFTypeID;
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}
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