JavaScriptCore-7601.1.46.3.tar.gz

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

diff --git a/runtime/ArrayConstructor.cpp b/runtime/ArrayConstructor.cpp
index dd3ff4bc605a5d491fc65a1513686f2fc6396559..194f9217c1c21860369ec0e4ee44d87c98800836 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) 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)
  *
  *  Copyright (C) 2003 Peter Kelly (pmk@post.com)
  *  Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *


@@ -25,60 +25,107 @@
 #include "ArrayConstructor.h"
 
 #include "ArrayPrototype.h"
 #include "ArrayConstructor.h"
 
 #include "ArrayPrototype.h"

+#include "ButterflyInlines.h"
+#include "CopiedSpaceInlines.h"
+#include "Error.h"
+#include "ExceptionHelpers.h"

 #include "JSArray.h"
 #include "JSArray.h"

+#include "JSFunction.h"

 #include "Lookup.h"
 #include "Lookup.h"

+#include "JSCInlines.h"

 
 namespace JSC {
 
 
 namespace JSC {
 

-ASSERT_CLASS_FITS_IN_CELL(ArrayConstructor);
+static EncodedJSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState*);

 
 

-ArrayConstructor::ArrayConstructor(ExecState* exec, PassRefPtr<Structure> structure, ArrayPrototype* arrayPrototype)
-    : InternalFunction(&exec->globalData(), structure, Identifier(exec, arrayPrototype->classInfo()->className))
+}
+
+#include "ArrayConstructor.lut.h"
+
+namespace JSC {
+
+STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(ArrayConstructor);
+
+const ClassInfo ArrayConstructor::s_info = { "Function", &InternalFunction::s_info, &arrayConstructorTable, CREATE_METHOD_TABLE(ArrayConstructor) };
+
+/* Source for ArrayConstructor.lut.h
+@begin arrayConstructorTable
+  isArray   arrayConstructorIsArray     DontEnum|Function 1
+  of        arrayConstructorOf          DontEnum|Function 0
+  from      arrayConstructorFrom        DontEnum|Function 0
+@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);

 }
 
 }
 

-static JSObject* constructArrayWithSizeQuirk(ExecState* exec, const ArgList& args)
+bool ArrayConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot &slot)

 {
 {

+    return getStaticFunctionSlot<InternalFunction>(exec, arrayConstructorTable, 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 (!)
     // a single numeric argument denotes the array size (!)

-    if (args.size() == 1 && args.at(exec, 0).isNumber()) {
-        uint32_t n = args.at(exec, 0).toUInt32(exec);
-        if (n != args.at(exec, 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
 
     // otherwise the array is constructed with the arguments in it

-    return new (exec) JSArray(exec, 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;
 }
 
 {
     constructData.native.function = constructWithArrayConstructor;
     return ConstructTypeHost;
 }
 

-static JSValuePtr callArrayConstructor(ExecState* exec, JSObject*, JSValuePtr, 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;
 }
 
 {
     // equivalent to 'new Array(....)'
     callData.native.function = callArrayConstructor;
     return CallTypeHost;
 }
 

+EncodedJSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState* exec)
+{
+    return JSValue::encode(jsBoolean(exec->argument(0).inherits(JSArray::info())));
+}
+

 } // namespace JSC
 } // namespace JSC