Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-03 12:40:06 +01:00
Code Issues Projects Releases Packages Wiki Activity

Return a JS<T> from *Binding::Wrap rather than a JSObject.

Browse source 
This lets us avoid the sketchy tricks in JS::new and Window::new, where we
kept an unsafe pointer to the native object across the Wrap call that
consumed the owned pointer.
This commit is contained in:
Ms2ger 2014-03-14 13:06:48 +01:00
parent 71f4fd0478
commit 4ad3b6ccd1
6 changed files with 30 additions and 43 deletions
Download patch file Download diff file Expand all files Collapse all files

25
src/components/script/dom/bindings/codegen/CodegenRust.py
View file

@ -2058,7 +2058,7 @@ def DOMObjectPointerArg(descriptor):
return DOMObjectPointerType(descriptor) + descriptor.concreteType
def CreateBindingJSObject(descriptor, parent=None):
create = " let raw: *mut %s = &mut *aObject;\n" % descriptor.concreteType;
create = " let mut raw: JS<%s> = JS::from_raw(&mut *aObject);\n" % descriptor.concreteType
if descriptor.proxy:
assert not descriptor.createGlobal
handler = """
@ -2069,9 +2069,7 @@ def CreateBindingJSObject(descriptor, parent=None):
ptr::to_unsafe_ptr(&PrivateValue(squirrel_away_unique(aObject) as *libc::c_void)),
proto, %s,
ptr::null(), ptr::null());
if obj.is_null() {
return ptr::null();
}
assert!(obj.is_not_null());
""" % (parent)
else:
@ -2079,9 +2077,7 @@ def CreateBindingJSObject(descriptor, parent=None):
create += " let obj = CreateDOMGlobal(aCx, &Class.base);\n"
else:
create += " let obj = JS_NewObject(aCx, &Class.base, proto, %s);\n" % parent
create += """ if obj.is_null() {
return ptr::null();
}
create += """ assert!(obj.is_not_null());
JS_SetReservedSlot(obj, DOM_OBJECT_SLOT as u32,
PrivateValue(squirrel_away_unique(aObject) as *libc::c_void));
@ -2097,7 +2093,8 @@ class CGWrapMethod(CGAbstractMethod):
else:
args = [Argument('*JSContext', 'aCx'),
Argument(DOMObjectPointerArg(descriptor), 'aObject', mutable=True)]
CGAbstractMethod.__init__(self, descriptor, 'Wrap', '*JSObject', args, pub=True)
retval = 'JS<%s>' % descriptor.concreteType
CGAbstractMethod.__init__(self, descriptor, 'Wrap', retval, args, pub=True)
def definition_body(self):
if not self.descriptor.createGlobal:
@ -2108,22 +2105,20 @@ class CGWrapMethod(CGAbstractMethod):
//JSAutoCompartment ac(aCx, scope);
let proto = GetProtoObject(aCx, scope, scope);
if proto.is_null() {
return ptr::null();
}
assert!(proto.is_not_null());
%s
(*raw).mut_reflector().set_jsobject(obj);
raw.mut_reflector().set_jsobject(obj);
return obj;""" % CreateBindingJSObject(self.descriptor, "scope")
return raw;""" % CreateBindingJSObject(self.descriptor, "scope")
else:
return """
%s
let proto = GetProtoObject(aCx, obj, obj);
JS_SetPrototype(aCx, obj, proto);
(*raw).mut_reflector().set_jsobject(obj);
return obj;""" % CreateBindingJSObject(self.descriptor)
raw.mut_reflector().set_jsobject(obj);
return raw;""" % CreateBindingJSObject(self.descriptor)
class CGAbstractExternMethod(CGAbstractMethod):
"""