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add and use IdRef::non_nil() instead of doing deref'd comparisons against nil

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This commit is contained in:
Ryan Stewart 2015-03-18 14:49:16 -07:00
parent 1b2fd6e6d0
commit cf630ec041
1 changed files with 24 additions and 27 deletions
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37
src/cocoa/mod.rs
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@ -456,10 +456,7 @@ impl Window {
NSBackingStoreBuffered,
NO,
));
if *window == nil {
None
} else {
window.non_nil().map(|window| {
let title = IdRef::new(NSString::alloc(nil).init_str(title));
window.setTitle_(*title);
window.setAcceptsMouseMovedEvents_(YES);
@ -469,21 +466,19 @@ impl Window {
else {
window.center();
}
Some(window)
}
window
})
}
}
fn create_view(window: id) -> Option<IdRef> {
unsafe {
let view = IdRef::new(NSView::alloc(nil).init());
if *view == nil {
None
} else {
view.non_nil().map(|view| {
view.setWantsBestResolutionOpenGLSurface_(YES);
window.setContentView_(*view);
Some(view)
}
view
})
}
}
@ -513,21 +508,17 @@ impl Window {
];
let pixelformat = IdRef::new(NSOpenGLPixelFormat::alloc(nil).initWithAttributes_(&attributes));
if *pixelformat == nil {
return None;
}
pixelformat.non_nil().map(|pixelformat| {
let context = IdRef::new(NSOpenGLContext::alloc(nil).initWithFormat_shareContext_(*pixelformat, nil));
if *context == nil {
None
} else {
context.non_nil().map(|context| {
context.setView_(view);
if vsync {
let value = 1;
context.setValues_forParameter_(&value, NSOpenGLContextParameter::NSOpenGLCPSwapInterval);
}
Some(context)
}
context
})
}).unwrap_or(None)
}
}
@ -715,9 +706,15 @@ impl IdRef {
}
fn retain(i: id) -> IdRef {
if i != nil {
unsafe { msg_send::<()>()(i, selector("retain")) };
}
IdRef(i)
}
fn non_nil(self) -> Option<IdRef> {
if self.0 == nil { None } else { Some(self) }
}
}
impl Drop for IdRef {