JavaScriptCore-7600.1.4.11.8.tar.gz

[apple/javascriptcore.git] / runtime / ArrayConstructor.cpp

diff --git a/runtime/ArrayConstructor.cpp b/runtime/ArrayConstructor.cpp
index fb4449405130bd557d93cf576d57cb376b8d568a..4442930213a80f2582b39807a482e99039b29c46 100644 (file)
--- a/runtime/ArrayConstructor.cpp
+++ b/runtime/ArrayConstructor.cpp
@@ -1,6 +1,6 @@
 /*
  *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
- *  Copyright (C) 2003, 2007, 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 2003, 2007, 2008, 2011 Apple Inc. All rights reserved.
  *  Copyright (C) 2003 Peter Kelly (pmk@post.com)
  *  Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
@@ -25,73 +25,105 @@
 #include "ArrayConstructor.h"
 
 #include "ArrayPrototype.h"
+#include "ButterflyInlines.h"
+#include "CopiedSpaceInlines.h"
 #include "Error.h"
+#include "ExceptionHelpers.h"
 #include "JSArray.h"
 #include "JSFunction.h"
 #include "Lookup.h"
-#include "PrototypeFunction.h"
+#include "JSCInlines.h"
 
 namespace JSC {
 
-ASSERT_CLASS_FITS_IN_CELL(ArrayConstructor);
-    
-static JSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState*, JSObject*, JSValue, const ArgList&);
+static EncodedJSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState*);
+
+}
+
+#include "ArrayConstructor.lut.h"
+
+namespace JSC {
+
+STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(ArrayConstructor);
+
+const ClassInfo ArrayConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::arrayConstructorTable, CREATE_METHOD_TABLE(ArrayConstructor) };
 
-ArrayConstructor::ArrayConstructor(ExecState* exec, NonNullPassRefPtr<Structure> structure, ArrayPrototype* arrayPrototype, Structure* prototypeFunctionStructure)
-    : InternalFunction(&exec->globalData(), structure, Identifier(exec, arrayPrototype->classInfo()->className))
+/* Source for ArrayConstructor.lut.h
+@begin arrayConstructorTable
+  isArray   arrayConstructorIsArray     DontEnum|Function 1
+@end
+*/
+
+ArrayConstructor::ArrayConstructor(VM& vm, Structure* structure)
+    : InternalFunction(vm, structure)
 {
-    // ECMA 15.4.3.1 Array.prototype
-    putDirectWithoutTransition(exec->propertyNames().prototype, arrayPrototype, DontEnum | DontDelete | ReadOnly);
+}
 
-    // no. of arguments for constructor
-    putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 1), ReadOnly | DontEnum | DontDelete);
+void ArrayConstructor::finishCreation(VM& vm, ArrayPrototype* arrayPrototype)
+{
+    Base::finishCreation(vm, arrayPrototype->classInfo()->className);
+    putDirectWithoutTransition(vm, vm.propertyNames->prototype, arrayPrototype, DontEnum | DontDelete | ReadOnly);
+    putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
+}
 
-    // ES5
-    putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 1, exec->propertyNames().isArray, arrayConstructorIsArray), DontEnum);
+bool ArrayConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot &slot)
+{
+    return getStaticFunctionSlot<InternalFunction>(exec, ExecState::arrayConstructorTable(exec->vm()), jsCast<ArrayConstructor*>(object), propertyName, slot);
+}
+
+// ------------------------------ Functions ---------------------------
+
+JSObject* constructArrayWithSizeQuirk(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, JSValue length)
+{
+    if (!length.isNumber())
+        return constructArrayNegativeIndexed(exec, profile, globalObject, &length, 1);
+    
+    uint32_t n = length.toUInt32(exec);
+    if (n != length.toNumber(exec))
+        return exec->vm().throwException(exec, createRangeError(exec, ASCIILiteral("Array size is not a small enough positive integer.")));
+    return constructEmptyArray(exec, profile, globalObject, n);
 }
 
 static inline JSObject* constructArrayWithSizeQuirk(ExecState* exec, const ArgList& args)
 {
+    JSGlobalObject* globalObject = asInternalFunction(exec->callee())->globalObject();
+
     // a single numeric argument denotes the array size (!)
-    if (args.size() == 1 && args.at(0).isNumber()) {
-        uint32_t n = args.at(0).toUInt32(exec);
-        if (n != args.at(0).toNumber(exec))
-            return throwError(exec, RangeError, "Array size is not a small enough positive integer.");
-        return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), n);
-    }
+    if (args.size() == 1)
+        return constructArrayWithSizeQuirk(exec, 0, globalObject, args.at(0));
 
     // otherwise the array is constructed with the arguments in it
-    return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), args);
+    return constructArray(exec, 0, globalObject, args);
 }
 
-static JSObject* constructWithArrayConstructor(ExecState* exec, JSObject*, const ArgList& args)
+static EncodedJSValue JSC_HOST_CALL constructWithArrayConstructor(ExecState* exec)
 {
-    return constructArrayWithSizeQuirk(exec, args);
+    ArgList args(exec);
+    return JSValue::encode(constructArrayWithSizeQuirk(exec, args));
 }
 
-// ECMA 15.4.2
-ConstructType ArrayConstructor::getConstructData(ConstructData& constructData)
+ConstructType ArrayConstructor::getConstructData(JSCell*, ConstructData& constructData)
 {
     constructData.native.function = constructWithArrayConstructor;
     return ConstructTypeHost;
 }
 
-static JSValue JSC_HOST_CALL callArrayConstructor(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+static EncodedJSValue JSC_HOST_CALL callArrayConstructor(ExecState* exec)
 {
-    return constructArrayWithSizeQuirk(exec, args);
+    ArgList args(exec);
+    return JSValue::encode(constructArrayWithSizeQuirk(exec, args));
 }
 
-// ECMA 15.6.1
-CallType ArrayConstructor::getCallData(CallData& callData)
+CallType ArrayConstructor::getCallData(JSCell*, CallData& callData)
 {
     // equivalent to 'new Array(....)'
     callData.native.function = callArrayConstructor;
     return CallTypeHost;
 }
 
-JSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState*, JSObject*, JSValue, const ArgList& args)
+EncodedJSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState* exec)
 {
-    return jsBoolean(args.at(0).inherits(&JSArray::info));
+    return JSValue::encode(jsBoolean(exec->argument(0).inherits(JSArray::info())));
 }
 
 } // namespace JSC