#include "config.h"
#include "ObjectConstructor.h"
+#include "Error.h"
#include "JSFunction.h"
+#include "JSArray.h"
#include "JSGlobalObject.h"
#include "ObjectPrototype.h"
+#include "PropertyDescriptor.h"
+#include "PropertyNameArray.h"
+#include "PrototypeFunction.h"
namespace JSC {
ASSERT_CLASS_FITS_IN_CELL(ObjectConstructor);
-ObjectConstructor::ObjectConstructor(ExecState* exec, PassRefPtr<Structure> structure, ObjectPrototype* objectPrototype)
- : InternalFunction(&exec->globalData(), structure, Identifier(exec, "Object"))
+static JSValue JSC_HOST_CALL objectConstructorGetPrototypeOf(ExecState*, JSObject*, JSValue, const ArgList&);
+static JSValue JSC_HOST_CALL objectConstructorGetOwnPropertyDescriptor(ExecState*, JSObject*, JSValue, const ArgList&);
+static JSValue JSC_HOST_CALL objectConstructorGetOwnPropertyNames(ExecState*, JSObject*, JSValue, const ArgList&);
+static JSValue JSC_HOST_CALL objectConstructorKeys(ExecState*, JSObject*, JSValue, const ArgList&);
+static JSValue JSC_HOST_CALL objectConstructorDefineProperty(ExecState*, JSObject*, JSValue, const ArgList&);
+static JSValue JSC_HOST_CALL objectConstructorDefineProperties(ExecState*, JSObject*, JSValue, const ArgList&);
+static JSValue JSC_HOST_CALL objectConstructorCreate(ExecState*, JSObject*, JSValue, const ArgList&);
+
+ObjectConstructor::ObjectConstructor(ExecState* exec, NonNullPassRefPtr<Structure> structure, ObjectPrototype* objectPrototype, Structure* prototypeFunctionStructure)
+: InternalFunction(&exec->globalData(), structure, Identifier(exec, "Object"))
{
// ECMA 15.2.3.1
putDirectWithoutTransition(exec->propertyNames().prototype, objectPrototype, DontEnum | DontDelete | ReadOnly);
-
+
// no. of arguments for constructor
putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 1), ReadOnly | DontEnum | DontDelete);
+
+ putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 1, exec->propertyNames().getPrototypeOf, objectConstructorGetPrototypeOf), DontEnum);
+ putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 2, exec->propertyNames().getOwnPropertyDescriptor, objectConstructorGetOwnPropertyDescriptor), DontEnum);
+ putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 1, exec->propertyNames().getOwnPropertyNames, objectConstructorGetOwnPropertyNames), DontEnum);
+ putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 1, exec->propertyNames().keys, objectConstructorKeys), DontEnum);
+ putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 3, exec->propertyNames().defineProperty, objectConstructorDefineProperty), DontEnum);
+ putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 2, exec->propertyNames().defineProperties, objectConstructorDefineProperties), DontEnum);
+ putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 2, exec->propertyNames().create, objectConstructorCreate), DontEnum);
}
// ECMA 15.2.2
return CallTypeHost;
}
+JSValue JSC_HOST_CALL objectConstructorGetPrototypeOf(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+{
+ if (!args.at(0).isObject())
+ return throwError(exec, TypeError, "Requested prototype of a value that is not an object.");
+ return asObject(args.at(0))->prototype();
+}
+
+JSValue JSC_HOST_CALL objectConstructorGetOwnPropertyDescriptor(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+{
+ if (!args.at(0).isObject())
+ return throwError(exec, TypeError, "Requested property descriptor of a value that is not an object.");
+ UString propertyName = args.at(1).toString(exec);
+ if (exec->hadException())
+ return jsNull();
+ JSObject* object = asObject(args.at(0));
+ PropertyDescriptor descriptor;
+ if (!object->getOwnPropertyDescriptor(exec, Identifier(exec, propertyName), descriptor))
+ return jsUndefined();
+ if (exec->hadException())
+ return jsUndefined();
+
+ JSObject* description = constructEmptyObject(exec);
+ if (!descriptor.isAccessorDescriptor()) {
+ description->putDirect(exec->propertyNames().value, descriptor.value() ? descriptor.value() : jsUndefined(), 0);
+ description->putDirect(exec->propertyNames().writable, jsBoolean(descriptor.writable()), 0);
+ } else {
+ description->putDirect(exec->propertyNames().get, descriptor.getter() ? descriptor.getter() : jsUndefined(), 0);
+ description->putDirect(exec->propertyNames().set, descriptor.setter() ? descriptor.setter() : jsUndefined(), 0);
+ }
+
+ description->putDirect(exec->propertyNames().enumerable, jsBoolean(descriptor.enumerable()), 0);
+ description->putDirect(exec->propertyNames().configurable, jsBoolean(descriptor.configurable()), 0);
+
+ return description;
+}
+
+// FIXME: Use the enumeration cache.
+JSValue JSC_HOST_CALL objectConstructorGetOwnPropertyNames(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+{
+ if (!args.at(0).isObject())
+ return throwError(exec, TypeError, "Requested property names of a value that is not an object.");
+ PropertyNameArray properties(exec);
+ asObject(args.at(0))->getOwnPropertyNames(exec, properties, IncludeDontEnumProperties);
+ JSArray* names = constructEmptyArray(exec);
+ size_t numProperties = properties.size();
+ for (size_t i = 0; i < numProperties; i++)
+ names->push(exec, jsOwnedString(exec, properties[i].ustring()));
+ return names;
+}
+
+// FIXME: Use the enumeration cache.
+JSValue JSC_HOST_CALL objectConstructorKeys(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+{
+ if (!args.at(0).isObject())
+ return throwError(exec, TypeError, "Requested keys of a value that is not an object.");
+ PropertyNameArray properties(exec);
+ asObject(args.at(0))->getOwnPropertyNames(exec, properties);
+ JSArray* keys = constructEmptyArray(exec);
+ size_t numProperties = properties.size();
+ for (size_t i = 0; i < numProperties; i++)
+ keys->push(exec, jsOwnedString(exec, properties[i].ustring()));
+ return keys;
+}
+
+// ES5 8.10.5 ToPropertyDescriptor
+static bool toPropertyDescriptor(ExecState* exec, JSValue in, PropertyDescriptor& desc)
+{
+ if (!in.isObject()) {
+ throwError(exec, TypeError, "Property description must be an object.");
+ return false;
+ }
+ JSObject* description = asObject(in);
+
+ PropertySlot enumerableSlot(description);
+ if (description->getPropertySlot(exec, exec->propertyNames().enumerable, enumerableSlot)) {
+ desc.setEnumerable(enumerableSlot.getValue(exec, exec->propertyNames().enumerable).toBoolean(exec));
+ if (exec->hadException())
+ return false;
+ }
+
+ PropertySlot configurableSlot(description);
+ if (description->getPropertySlot(exec, exec->propertyNames().configurable, configurableSlot)) {
+ desc.setConfigurable(configurableSlot.getValue(exec, exec->propertyNames().configurable).toBoolean(exec));
+ if (exec->hadException())
+ return false;
+ }
+
+ JSValue value;
+ PropertySlot valueSlot(description);
+ if (description->getPropertySlot(exec, exec->propertyNames().value, valueSlot)) {
+ desc.setValue(valueSlot.getValue(exec, exec->propertyNames().value));
+ if (exec->hadException())
+ return false;
+ }
+
+ PropertySlot writableSlot(description);
+ if (description->getPropertySlot(exec, exec->propertyNames().writable, writableSlot)) {
+ desc.setWritable(writableSlot.getValue(exec, exec->propertyNames().writable).toBoolean(exec));
+ if (exec->hadException())
+ return false;
+ }
+
+ PropertySlot getSlot(description);
+ if (description->getPropertySlot(exec, exec->propertyNames().get, getSlot)) {
+ JSValue get = getSlot.getValue(exec, exec->propertyNames().get);
+ if (exec->hadException())
+ return false;
+ if (!get.isUndefined()) {
+ CallData callData;
+ if (get.getCallData(callData) == CallTypeNone) {
+ throwError(exec, TypeError, "Getter must be a function.");
+ return false;
+ }
+ } else
+ get = JSValue();
+ desc.setGetter(get);
+ }
+
+ PropertySlot setSlot(description);
+ if (description->getPropertySlot(exec, exec->propertyNames().set, setSlot)) {
+ JSValue set = setSlot.getValue(exec, exec->propertyNames().set);
+ if (exec->hadException())
+ return false;
+ if (!set.isUndefined()) {
+ CallData callData;
+ if (set.getCallData(callData) == CallTypeNone) {
+ throwError(exec, TypeError, "Setter must be a function.");
+ return false;
+ }
+ } else
+ set = JSValue();
+
+ desc.setSetter(set);
+ }
+
+ if (!desc.isAccessorDescriptor())
+ return true;
+
+ if (desc.value()) {
+ throwError(exec, TypeError, "Invalid property. 'value' present on property with getter or setter.");
+ return false;
+ }
+
+ if (desc.writablePresent()) {
+ throwError(exec, TypeError, "Invalid property. 'writable' present on property with getter or setter.");
+ return false;
+ }
+ return true;
+}
+
+JSValue JSC_HOST_CALL objectConstructorDefineProperty(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+{
+ if (!args.at(0).isObject())
+ return throwError(exec, TypeError, "Properties can only be defined on Objects.");
+ JSObject* O = asObject(args.at(0));
+ UString propertyName = args.at(1).toString(exec);
+ if (exec->hadException())
+ return jsNull();
+ PropertyDescriptor descriptor;
+ if (!toPropertyDescriptor(exec, args.at(2), descriptor))
+ return jsNull();
+ ASSERT((descriptor.attributes() & (Getter | Setter)) || (!descriptor.isAccessorDescriptor()));
+ ASSERT(!exec->hadException());
+ O->defineOwnProperty(exec, Identifier(exec, propertyName), descriptor, true);
+ return O;
+}
+
+static JSValue defineProperties(ExecState* exec, JSObject* object, JSObject* properties)
+{
+ PropertyNameArray propertyNames(exec);
+ asObject(properties)->getOwnPropertyNames(exec, propertyNames);
+ size_t numProperties = propertyNames.size();
+ Vector<PropertyDescriptor> descriptors;
+ MarkedArgumentBuffer markBuffer;
+ for (size_t i = 0; i < numProperties; i++) {
+ PropertySlot slot;
+ JSValue prop = properties->get(exec, propertyNames[i]);
+ if (exec->hadException())
+ return jsNull();
+ PropertyDescriptor descriptor;
+ if (!toPropertyDescriptor(exec, prop, descriptor))
+ return jsNull();
+ descriptors.append(descriptor);
+ // Ensure we mark all the values that we're accumulating
+ if (descriptor.isDataDescriptor() && descriptor.value())
+ markBuffer.append(descriptor.value());
+ if (descriptor.isAccessorDescriptor()) {
+ if (descriptor.getter())
+ markBuffer.append(descriptor.getter());
+ if (descriptor.setter())
+ markBuffer.append(descriptor.setter());
+ }
+ }
+ for (size_t i = 0; i < numProperties; i++) {
+ object->defineOwnProperty(exec, propertyNames[i], descriptors[i], true);
+ if (exec->hadException())
+ return jsNull();
+ }
+ return object;
+}
+
+JSValue JSC_HOST_CALL objectConstructorDefineProperties(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+{
+ if (!args.at(0).isObject())
+ return throwError(exec, TypeError, "Properties can only be defined on Objects.");
+ if (!args.at(1).isObject())
+ return throwError(exec, TypeError, "Property descriptor list must be an Object.");
+ return defineProperties(exec, asObject(args.at(0)), asObject(args.at(1)));
+}
+
+JSValue JSC_HOST_CALL objectConstructorCreate(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+{
+ if (!args.at(0).isObject() && !args.at(0).isNull())
+ return throwError(exec, TypeError, "Object prototype may only be an Object or null.");
+ JSObject* newObject = constructEmptyObject(exec);
+ newObject->setPrototype(args.at(0));
+ if (args.at(1).isUndefined())
+ return newObject;
+ if (!args.at(1).isObject())
+ return throwError(exec, TypeError, "Property descriptor list must be an Object.");
+ return defineProperties(exec, newObject, asObject(args.at(1)));
+}
+
} // namespace JSC
projects / apple / javascriptcore.git / blobdiff