use of com.github.anba.es6draft.runtime.types.Callable in project es6draft by anba.
the class OrdinaryObject method setValue.
/**
* 9.1.9 [[Set] (P, V, Receiver)
*
* @param cx
* the execution context
* @param propertyKey
* the property key
* @param value
* the new property value
* @param receiver
* the receiver object
* @return {@code true} on success
*/
protected boolean setValue(ExecutionContext cx, long propertyKey, Object value, Object receiver) {
/* step 1 (implicit) */
/* steps 2-3 */
Property ownDesc = getProperty(cx, propertyKey);
/* step 4 */
if (ownDesc == null) {
ScriptObject parent = getPrototypeOf(cx);
if (parent != null) {
return parent.set(cx, propertyKey, value, receiver);
} else {
ownDesc = new Property(UNDEFINED, true, true, true);
}
} else if (receiver == this && ownDesc.isWritable()) {
// Optimize the common case for own, writable properties
return setPropertyValue(cx, propertyKey, value, ownDesc);
}
/* step 5 */
if (ownDesc.isDataDescriptor()) {
if (!ownDesc.isWritable()) {
return false;
}
if (!Type.isObject(receiver)) {
return false;
}
ScriptObject _receiver = Type.objectValue(receiver);
Property existingDescriptor = _receiver.getOwnProperty(cx, propertyKey);
if (existingDescriptor != null) {
if (existingDescriptor.isAccessorDescriptor() || !existingDescriptor.isWritable()) {
return false;
}
PropertyDescriptor valueDesc = new PropertyDescriptor(value);
return _receiver.defineOwnProperty(cx, propertyKey, valueDesc);
} else {
return CreateDataProperty(cx, _receiver, propertyKey, value);
}
}
/* step 6 */
assert ownDesc.isAccessorDescriptor();
Callable setter = ownDesc.getSetter();
if (setter == null) {
return false;
}
setter.call(cx, receiver, value);
return true;
}
use of com.github.anba.es6draft.runtime.types.Callable in project es6draft by anba.
the class ProxyObject method defineOwnProperty.
/**
* 9.5.6 [[DefineOwnProperty]] (P, Desc)
*/
@Override
public boolean defineOwnProperty(ExecutionContext cx, String propertyKey, PropertyDescriptor desc) {
/* step 1 (implicit) */
/* steps 2-4 */
ScriptObject handler = getProxyHandler(cx);
/* step 5 */
ScriptObject target = getProxyTarget();
/* steps 6-7 */
Callable trap = GetMethod(cx, handler, "defineProperty");
/* step 8 */
if (trap == null) {
return target.defineOwnProperty(cx, propertyKey, desc);
}
/* step 9 */
Object descObj = FromPropertyDescriptor(cx, desc);
/* steps 10-11 */
boolean trapResult = ToBoolean(trap.call(cx, handler, target, propertyKey, descObj));
/* step 12 */
if (!trapResult) {
return false;
}
/* steps 13-14 */
Property targetDesc = target.getOwnProperty(cx, propertyKey);
/* steps 15-21 */
return validateDefineOwnProperty(cx, desc, target, targetDesc);
}
use of com.github.anba.es6draft.runtime.types.Callable in project es6draft by anba.
the class ProxyObject method set.
/**
* 9.5.9 [[Set]] ( P, V, Receiver)
*/
@Override
public boolean set(ExecutionContext cx, Symbol propertyKey, Object value, Object receiver) {
/* step 1 (implicit) */
/* steps 2-4 */
ScriptObject handler = getProxyHandler(cx);
/* step 5 */
ScriptObject target = getProxyTarget();
/* steps 6-7 */
Callable trap = GetMethod(cx, handler, "set");
/* step 8 */
if (trap == null) {
return target.set(cx, propertyKey, value, receiver);
}
/* steps 9-10 */
boolean trapResult = ToBoolean(trap.call(cx, handler, target, propertyKey, value, receiver));
/* step 11 */
if (!trapResult) {
return false;
}
/* steps 12-13 */
Property targetDesc = target.getOwnProperty(cx, propertyKey);
/* steps 14-15 */
return validateSet(cx, value, targetDesc);
}
use of com.github.anba.es6draft.runtime.types.Callable in project es6draft by anba.
the class ProxyObject method delete.
/**
* 9.5.10 [[Delete]] (P)
*/
@Override
public boolean delete(ExecutionContext cx, Symbol propertyKey) {
/* step 1 (implicit) */
/* steps 2-4 */
ScriptObject handler = getProxyHandler(cx);
/* step 5 */
ScriptObject target = getProxyTarget();
/* steps 6-7 */
Callable trap = GetMethod(cx, handler, "deleteProperty");
/* step 8 */
if (trap == null) {
return target.delete(cx, propertyKey);
}
/* steps 9-10 */
boolean trapResult = ToBoolean(trap.call(cx, handler, target, propertyKey));
/* step 11 */
if (!trapResult) {
return false;
}
/* steps 12-13 */
Property targetDesc = target.getOwnProperty(cx, propertyKey);
/* steps 14-16 */
return validateDelete(cx, targetDesc);
}
Aggregations