X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/9dae56ea45a0f5f8136a5c93d6f3a7f99399ca73..14957cd040308e3eeec43d26bae5d76da13fcd85:/runtime/ObjectConstructor.cpp?ds=inline

diff --git a/runtime/ObjectConstructor.cpp b/runtime/ObjectConstructor.cpp
index 2d61127..c325fa0 100644
--- a/runtime/ObjectConstructor.cpp
+++ b/runtime/ObjectConstructor.cpp
@@ -21,35 +21,92 @@
 #include "config.h"
 #include "ObjectConstructor.h"
 
+#include "Error.h"
+#include "ExceptionHelpers.h"
+#include "JSFunction.h"
+#include "JSArray.h"
 #include "JSGlobalObject.h"
+#include "Lookup.h"
 #include "ObjectPrototype.h"
+#include "PropertyDescriptor.h"
+#include "PropertyNameArray.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 EncodedJSValue JSC_HOST_CALL objectConstructorGetPrototypeOf(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyDescriptor(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyNames(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorKeys(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorDefineProperty(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorDefineProperties(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorCreate(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorSeal(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorFreeze(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorPreventExtensions(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorIsSealed(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorIsFrozen(ExecState*);
+static EncodedJSValue JSC_HOST_CALL objectConstructorIsExtensible(ExecState*);
+
+}
+
+#include "ObjectConstructor.lut.h"
+
+namespace JSC {
+
+const ClassInfo ObjectConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::objectConstructorTable };
+
+/* Source for ObjectConstructor.lut.h
+@begin objectConstructorTable
+  getPrototypeOf            objectConstructorGetPrototypeOf             DontEnum|Function 1
+  getOwnPropertyDescriptor  objectConstructorGetOwnPropertyDescriptor   DontEnum|Function 2
+  getOwnPropertyNames       objectConstructorGetOwnPropertyNames        DontEnum|Function 1
+  keys                      objectConstructorKeys                       DontEnum|Function 1
+  defineProperty            objectConstructorDefineProperty             DontEnum|Function 3
+  defineProperties          objectConstructorDefineProperties           DontEnum|Function 2
+  create                    objectConstructorCreate                     DontEnum|Function 2
+  seal                      objectConstructorSeal                       DontEnum|Function 1
+  freeze                    objectConstructorFreeze                     DontEnum|Function 1
+  preventExtensions         objectConstructorPreventExtensions          DontEnum|Function 1
+  isSealed                  objectConstructorIsSealed                   DontEnum|Function 1
+  isFrozen                  objectConstructorIsFrozen                   DontEnum|Function 1
+  isExtensible              objectConstructorIsExtensible               DontEnum|Function 1
+@end
+*/
+
+ObjectConstructor::ObjectConstructor(ExecState* exec, JSGlobalObject* globalObject, Structure* structure, ObjectPrototype* objectPrototype)
+    : InternalFunction(&exec->globalData(), globalObject, structure, Identifier(exec, "Object"))
 {
     // ECMA 15.2.3.1
-    putDirectWithoutTransition(exec->propertyNames().prototype, objectPrototype, DontEnum | DontDelete | ReadOnly);
-
+    putDirectWithoutTransition(exec->globalData(), exec->propertyNames().prototype, objectPrototype, DontEnum | DontDelete | ReadOnly);
     // no. of arguments for constructor
-    putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 1), ReadOnly | DontEnum | DontDelete);
+    putDirectWithoutTransition(exec->globalData(), exec->propertyNames().length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
+}
+
+bool ObjectConstructor::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot &slot)
+{
+    return getStaticFunctionSlot<JSObject>(exec, ExecState::objectConstructorTable(exec), this, propertyName, slot);
+}
+
+bool ObjectConstructor::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+{
+    return getStaticFunctionDescriptor<JSObject>(exec, ExecState::objectConstructorTable(exec), this, propertyName, descriptor);
 }
 
 // ECMA 15.2.2
-static ALWAYS_INLINE JSObject* constructObject(ExecState* exec, const ArgList& args)
+static ALWAYS_INLINE JSObject* constructObject(ExecState* exec, JSGlobalObject* globalObject, const ArgList& args)
 {
-    JSValuePtr arg = args.at(exec, 0);
+    JSValue arg = args.at(0);
     if (arg.isUndefinedOrNull())
-        return new (exec) JSObject(exec->lexicalGlobalObject()->emptyObjectStructure());
-    return arg.toObject(exec);
+        return constructEmptyObject(exec, globalObject);
+    return arg.toObject(exec, globalObject);
 }
 
-static JSObject* constructWithObjectConstructor(ExecState* exec, JSObject*, const ArgList& args)
+static EncodedJSValue JSC_HOST_CALL constructWithObjectConstructor(ExecState* exec)
 {
-    return constructObject(exec, args);
+    ArgList args(exec);
+    return JSValue::encode(constructObject(exec, asInternalFunction(exec->callee())->globalObject(), args));
 }
 
 ConstructType ObjectConstructor::getConstructData(ConstructData& constructData)
@@ -58,9 +115,10 @@ ConstructType ObjectConstructor::getConstructData(ConstructData& constructData)
     return ConstructTypeHost;
 }
 
-static JSValuePtr callObjectConstructor(ExecState* exec, JSObject*, JSValuePtr, const ArgList& args)
+static EncodedJSValue JSC_HOST_CALL callObjectConstructor(ExecState* exec)
 {
-    return constructObject(exec, args);
+    ArgList args(exec);
+    return JSValue::encode(constructObject(exec, asInternalFunction(exec->callee())->globalObject(), args));
 }
 
 CallType ObjectConstructor::getCallData(CallData& callData)
@@ -69,4 +127,278 @@ CallType ObjectConstructor::getCallData(CallData& callData)
     return CallTypeHost;
 }
 
+EncodedJSValue JSC_HOST_CALL objectConstructorGetPrototypeOf(ExecState* exec)
+{
+    if (!exec->argument(0).isObject())
+        return throwVMError(exec, createTypeError(exec, "Requested prototype of a value that is not an object."));
+    return JSValue::encode(asObject(exec->argument(0))->prototype());
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyDescriptor(ExecState* exec)
+{
+    if (!exec->argument(0).isObject())
+        return throwVMError(exec, createTypeError(exec, "Requested property descriptor of a value that is not an object."));
+    UString propertyName = exec->argument(1).toString(exec);
+    if (exec->hadException())
+        return JSValue::encode(jsNull());
+    JSObject* object = asObject(exec->argument(0));
+    PropertyDescriptor descriptor;
+    if (!object->getOwnPropertyDescriptor(exec, Identifier(exec, propertyName), descriptor))
+        return JSValue::encode(jsUndefined());
+    if (exec->hadException())
+        return JSValue::encode(jsUndefined());
+
+    JSObject* description = constructEmptyObject(exec);
+    if (!descriptor.isAccessorDescriptor()) {
+        description->putDirect(exec->globalData(), exec->propertyNames().value, descriptor.value() ? descriptor.value() : jsUndefined(), 0);
+        description->putDirect(exec->globalData(), exec->propertyNames().writable, jsBoolean(descriptor.writable()), 0);
+    } else {
+        description->putDirect(exec->globalData(), exec->propertyNames().get, descriptor.getter() ? descriptor.getter() : jsUndefined(), 0);
+        description->putDirect(exec->globalData(), exec->propertyNames().set, descriptor.setter() ? descriptor.setter() : jsUndefined(), 0);
+    }
+    
+    description->putDirect(exec->globalData(), exec->propertyNames().enumerable, jsBoolean(descriptor.enumerable()), 0);
+    description->putDirect(exec->globalData(), exec->propertyNames().configurable, jsBoolean(descriptor.configurable()), 0);
+
+    return JSValue::encode(description);
+}
+
+// FIXME: Use the enumeration cache.
+EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyNames(ExecState* exec)
+{
+    if (!exec->argument(0).isObject())
+        return throwVMError(exec, createTypeError(exec, "Requested property names of a value that is not an object."));
+    PropertyNameArray properties(exec);
+    asObject(exec->argument(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 JSValue::encode(names);
+}
+
+// FIXME: Use the enumeration cache.
+EncodedJSValue JSC_HOST_CALL objectConstructorKeys(ExecState* exec)
+{
+    if (!exec->argument(0).isObject())
+        return throwVMError(exec, createTypeError(exec, "Requested keys of a value that is not an object."));
+    PropertyNameArray properties(exec);
+    asObject(exec->argument(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 JSValue::encode(keys);
+}
+
+// ES5 8.10.5 ToPropertyDescriptor
+static bool toPropertyDescriptor(ExecState* exec, JSValue in, PropertyDescriptor& desc)
+{
+    if (!in.isObject()) {
+        throwError(exec, createTypeError(exec, "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 (getCallData(get, callData) == CallTypeNone) {
+                throwError(exec, createTypeError(exec, "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 (getCallData(set, callData) == CallTypeNone) {
+                throwError(exec, createTypeError(exec, "Setter must be a function."));
+                return false;
+            }
+        } else
+            set = JSValue();
+
+        desc.setSetter(set);
+    }
+
+    if (!desc.isAccessorDescriptor())
+        return true;
+
+    if (desc.value()) {
+        throwError(exec, createTypeError(exec, "Invalid property.  'value' present on property with getter or setter."));
+        return false;
+    }
+
+    if (desc.writablePresent()) {
+        throwError(exec, createTypeError(exec, "Invalid property.  'writable' present on property with getter or setter."));
+        return false;
+    }
+    return true;
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorDefineProperty(ExecState* exec)
+{
+    if (!exec->argument(0).isObject())
+        return throwVMError(exec, createTypeError(exec, "Properties can only be defined on Objects."));
+    JSObject* O = asObject(exec->argument(0));
+    UString propertyName = exec->argument(1).toString(exec);
+    if (exec->hadException())
+        return JSValue::encode(jsNull());
+    PropertyDescriptor descriptor;
+    if (!toPropertyDescriptor(exec, exec->argument(2), descriptor))
+        return JSValue::encode(jsNull());
+    ASSERT((descriptor.attributes() & (Getter | Setter)) || (!descriptor.isAccessorDescriptor()));
+    ASSERT(!exec->hadException());
+    O->defineOwnProperty(exec, Identifier(exec, propertyName), descriptor, true);
+    return JSValue::encode(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;
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorDefineProperties(ExecState* exec)
+{
+    if (!exec->argument(0).isObject())
+        return throwVMError(exec, createTypeError(exec, "Properties can only be defined on Objects."));
+    if (!exec->argument(1).isObject())
+        return throwVMError(exec, createTypeError(exec, "Property descriptor list must be an Object."));
+    return JSValue::encode(defineProperties(exec, asObject(exec->argument(0)), asObject(exec->argument(1))));
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorCreate(ExecState* exec)
+{
+    if (!exec->argument(0).isObject() && !exec->argument(0).isNull())
+        return throwVMError(exec, createTypeError(exec, "Object prototype may only be an Object or null."));
+    JSValue proto = exec->argument(0);
+    JSObject* newObject = proto.isObject() ? constructEmptyObject(exec, asObject(proto)->inheritorID(exec->globalData())) : constructEmptyObject(exec, exec->lexicalGlobalObject()->nullPrototypeObjectStructure());
+    if (exec->argument(1).isUndefined())
+        return JSValue::encode(newObject);
+    if (!exec->argument(1).isObject())
+        return throwVMError(exec, createTypeError(exec, "Property descriptor list must be an Object."));
+    return JSValue::encode(defineProperties(exec, newObject, asObject(exec->argument(1))));
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorSeal(ExecState* exec)
+{
+    JSValue obj = exec->argument(0);
+    if (!obj.isObject())
+        return throwVMError(exec, createTypeError(exec, "Object.seal can only be called on Objects."));
+    asObject(obj)->seal(exec->globalData());
+    return JSValue::encode(obj);
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorFreeze(ExecState* exec)
+{
+    JSValue obj = exec->argument(0);
+    if (!obj.isObject())
+        return throwVMError(exec, createTypeError(exec, "Object.freeze can only be called on Objects."));
+    asObject(obj)->freeze(exec->globalData());
+    return JSValue::encode(obj);
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorPreventExtensions(ExecState* exec)
+{
+    JSValue obj = exec->argument(0);
+    if (!obj.isObject())
+        return throwVMError(exec, createTypeError(exec, "Object.preventExtensions can only be called on Objects."));
+    asObject(obj)->preventExtensions(exec->globalData());
+    return JSValue::encode(obj);
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorIsSealed(ExecState* exec)
+{
+    JSValue obj = exec->argument(0);
+    if (!obj.isObject())
+        return throwVMError(exec, createTypeError(exec, "Object.isSealed can only be called on Objects."));
+    return JSValue::encode(jsBoolean(asObject(obj)->isSealed(exec->globalData())));
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorIsFrozen(ExecState* exec)
+{
+    JSValue obj = exec->argument(0);
+    if (!obj.isObject())
+        return throwVMError(exec, createTypeError(exec, "Object.isFrozen can only be called on Objects."));
+    return JSValue::encode(jsBoolean(asObject(obj)->isFrozen(exec->globalData())));
+}
+
+EncodedJSValue JSC_HOST_CALL objectConstructorIsExtensible(ExecState* exec)
+{
+    JSValue obj = exec->argument(0);
+    if (!obj.isObject())
+        return throwVMError(exec, createTypeError(exec, "Object.isExtensible can only be called on Objects."));
+    return JSValue::encode(jsBoolean(asObject(obj)->isExtensible()));
+}
+
 } // namespace JSC