@Override
public void defineOwnProperty(Context cx, Object key, ScriptableObject desc) {
if (key instanceof String) {
String name = (String) key;
int info = findInstanceIdInfo(name);
if (info != 0) {
int id = (info & 0xFFFF);
if (isAccessorDescriptor(desc)) {
delete(id); // it will be replaced with a slot
} else {
int attr = (info >>> 16);
Object value = getProperty(desc, "value");
setInstanceIdValue(id, value == NOT_FOUND ? Undefined.instance : value);
setAttributes(id, applyDescriptorToAttributeBitset(attr, desc));
return;
}
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
if (isAccessorDescriptor(desc)) {
prototypeValues.delete(id); // it will be replaced with a slot
} else {
int attr = prototypeValues.getAttributes(id);
Object value = getProperty(desc, "value");
prototypeValues.set(id, this, value == NOT_FOUND ? Undefined.instance : value);
prototypeValues.setAttributes(id, applyDescriptorToAttributeBitset(attr, desc));
return;
}
}
}
}
super.defineOwnProperty(cx, key, desc);
}
private ScriptableObject getBuiltInDescriptor(String name) {
Object value = null;
int attr = EMPTY;
Scriptable scope = getParentScope();
if (scope == null) {
scope = this;
}
int info = findInstanceIdInfo(name);
if (info != 0) {
int id = (info & 0xFFFF);
value = getInstanceIdValue(id);
attr = (info >>> 16);
return buildDataDescriptor(scope, value, attr);
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
value = prototypeValues.get(id);
attr = prototypeValues.getAttributes(id);
return buildDataDescriptor(scope, value, attr);
}
}
return null;
}
@Override
public void delete(String name) {
int info = findInstanceIdInfo(name);
if (info != 0) {
// Let the super class to throw exceptions for sealed objects
if (!isSealed()) {
int attr = (info >>> 16);
if ((attr & PERMANENT) == 0) {
int id = (info & 0xFFFF);
setInstanceIdValue(id, NOT_FOUND);
}
return;
}
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
if (!isSealed()) {
prototypeValues.delete(id);
}
return;
}
}
super.delete(name);
}
@Override
public void put(String name, Scriptable start, Object value) {
int info = findInstanceIdInfo(name);
if (info != 0) {
if (start == this && isSealed()) {
throw Context.reportRuntimeError1("msg.modify.sealed", name);
}
int attr = (info >>> 16);
if ((attr & READONLY) == 0) {
if (start == this) {
int id = (info & 0xFFFF);
setInstanceIdValue(id, value);
} else {
start.put(name, start, value);
}
}
return;
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
if (start == this && isSealed()) {
throw Context.reportRuntimeError1("msg.modify.sealed", name);
}
prototypeValues.set(id, start, value);
return;
}
}
super.put(name, start, value);
}
@Override
public int getAttributes(String name) {
int info = findInstanceIdInfo(name);
if (info != 0) {
int attr = (info >>> 16);
return attr;
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
return prototypeValues.getAttributes(id);
}
}
return super.getAttributes(name);
}
private void writeObject(ObjectOutputStream stream) throws IOException {
stream.defaultWriteObject();
int maxPrototypeId = 0;
if (prototypeValues != null) {
maxPrototypeId = prototypeValues.getMaxId();
}
stream.writeInt(maxPrototypeId);
}
@Override
public Object get(String name, Scriptable start) {
int info = findInstanceIdInfo(name);
if (info != 0) {
int id = (info & 0xFFFF);
Object value = getInstanceIdValue(id);
if (value != NOT_FOUND) return value;
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
Object value = prototypeValues.get(id);
if (value != NOT_FOUND) return value;
}
}
return super.get(name, start);
}
public final void initPrototypeConstructor(IdFunctionObject f) {
int id = prototypeValues.constructorId;
if (id == 0) throw new IllegalStateException();
if (f.methodId() != id) throw new IllegalArgumentException();
if (isSealed()) {
f.sealObject();
}
prototypeValues.initValue(id, "constructor", f, DONTENUM);
}
@Override
public boolean has(String name, Scriptable start) {
int info = findInstanceIdInfo(name);
if (info != 0) {
int attr = (info >>> 16);
if ((attr & PERMANENT) != 0) {
return true;
}
int id = (info & 0xFFFF);
return NOT_FOUND != getInstanceIdValue(id);
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
return prototypeValues.has(id);
}
}
return super.has(name, start);
}
@Override
public void setAttributes(String name, int attributes) {
ScriptableObject.checkValidAttributes(attributes);
int info = findInstanceIdInfo(name);
if (info != 0) {
int currentAttributes = (info >>> 16);
if (attributes != currentAttributes) {
throw new RuntimeException("Change of attributes for this id is not supported");
}
return;
}
if (prototypeValues != null) {
int id = prototypeValues.findId(name);
if (id != 0) {
prototypeValues.setAttributes(id, attributes);
return;
}
}
super.setAttributes(name, attributes);
}
@Override
Object[] getIds(boolean getAll) {
Object[] result = super.getIds(getAll);
if (prototypeValues != null) {
result = prototypeValues.getNames(getAll, result);
}
int maxInstanceId = getMaxInstanceId();
if (maxInstanceId != 0) {
Object[] ids = null;
int count = 0;
for (int id = maxInstanceId; id != 0; --id) {
String name = getInstanceIdName(id);
int info = findInstanceIdInfo(name);
if (info != 0) {
int attr = (info >>> 16);
if ((attr & PERMANENT) == 0) {
if (NOT_FOUND == getInstanceIdValue(id)) {
continue;
}
}
if (getAll || (attr & DONTENUM) == 0) {
if (count == 0) {
// Need extra room for no more then [1..id] names
ids = new Object[id];
}
ids[count++] = name;
}
}
}
if (count != 0) {
if (result.length == 0 && ids.length == count) {
result = ids;
} else {
Object[] tmp = new Object[result.length + count];
System.arraycopy(result, 0, tmp, 0, result.length);
System.arraycopy(ids, 0, tmp, result.length, count);
result = tmp;
}
}
}
return result;
}
public final IdFunctionObject exportAsJSClass(
int maxPrototypeId, Scriptable scope, boolean sealed) {
// Set scope and prototype unless this is top level scope itself
if (scope != this && scope != null) {
setParentScope(scope);
setPrototype(getObjectPrototype(scope));
}
activatePrototypeMap(maxPrototypeId);
IdFunctionObject ctor = prototypeValues.createPrecachedConstructor();
if (sealed) {
sealObject();
}
fillConstructorProperties(ctor);
if (sealed) {
ctor.sealObject();
}
ctor.exportAsScopeProperty();
return ctor;
}
public final void initPrototypeValue(int id, String name, Object value, int attributes) {
prototypeValues.initValue(id, name, value, attributes);
}
public final void initPrototypeMethod(Object tag, int id, String name, int arity) {
Scriptable scope = ScriptableObject.getTopLevelScope(this);
IdFunctionObject f = newIdFunction(tag, id, name, arity, scope);
prototypeValues.initValue(id, name, f, DONTENUM);
}
