JavaScriptCore-7600.1.4.16.1.tar.gz

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

diff --git a/runtime/ArrayConstructor.cpp b/runtime/ArrayConstructor.cpp
index a4df41193d25e25f88a47ec602f7cc6e2605a5de..4442930213a80f2582b39807a482e99039b29c46 100644 (file)
--- a/runtime/ArrayConstructor.cpp
+++ b/runtime/ArrayConstructor.cpp
@@ -25,11 +25,14 @@
 #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 "JSCInlines.h"
 
 namespace JSC {
 
@@ -41,7 +44,9 @@ static EncodedJSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState*);
 
 namespace JSC {
 
-const ClassInfo ArrayConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::arrayConstructorTable };
+STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(ArrayConstructor);
+
+const ClassInfo ArrayConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::arrayConstructorTable, CREATE_METHOD_TABLE(ArrayConstructor) };
 
 /* Source for ArrayConstructor.lut.h
 @begin arrayConstructorTable
@@ -49,41 +54,46 @@ const ClassInfo ArrayConstructor::s_info = { "Function", &InternalFunction::s_in
 @end
 */
 
-ASSERT_CLASS_FITS_IN_CELL(ArrayConstructor);
-
-ArrayConstructor::ArrayConstructor(ExecState* exec, JSGlobalObject* globalObject, Structure* structure, ArrayPrototype* arrayPrototype)
-    : InternalFunction(&exec->globalData(), globalObject, structure, Identifier(exec, arrayPrototype->classInfo()->className))
+ArrayConstructor::ArrayConstructor(VM& vm, Structure* structure)
+    : InternalFunction(vm, structure)
 {
-    putDirectWithoutTransition(exec->globalData(), exec->propertyNames().prototype, arrayPrototype, DontEnum | DontDelete | ReadOnly);
-    putDirectWithoutTransition(exec->globalData(), exec->propertyNames().length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
 }
 
-bool ArrayConstructor::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot &slot)
+void ArrayConstructor::finishCreation(VM& vm, ArrayPrototype* arrayPrototype)
 {
-    return getStaticFunctionSlot<InternalFunction>(exec, ExecState::arrayConstructorTable(exec), this, propertyName, slot);
+    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);
 }
 
-bool ArrayConstructor::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+bool ArrayConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot &slot)
 {
-    return getStaticFunctionDescriptor<InternalFunction>(exec, ExecState::arrayConstructorTable(exec), this, propertyName, descriptor);
+    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, createRangeError(exec, "Array size is not a small enough positive integer."));
-        return new (exec) JSArray(exec->globalData(), globalObject->arrayStructure(), n, CreateInitialized);
-    }
+    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->globalData(), globalObject->arrayStructure(), args);
+    return constructArray(exec, 0, globalObject, args);
 }
 
 static EncodedJSValue JSC_HOST_CALL constructWithArrayConstructor(ExecState* exec)
@@ -92,7 +102,7 @@ static EncodedJSValue JSC_HOST_CALL constructWithArrayConstructor(ExecState* exe
     return JSValue::encode(constructArrayWithSizeQuirk(exec, args));
 }
 
-ConstructType ArrayConstructor::getConstructData(ConstructData& constructData)
+ConstructType ArrayConstructor::getConstructData(JSCell*, ConstructData& constructData)
 {
     constructData.native.function = constructWithArrayConstructor;
     return ConstructTypeHost;
@@ -104,7 +114,7 @@ static EncodedJSValue JSC_HOST_CALL callArrayConstructor(ExecState* exec)
     return JSValue::encode(constructArrayWithSizeQuirk(exec, args));
 }
 
-CallType ArrayConstructor::getCallData(CallData& callData)
+CallType ArrayConstructor::getCallData(JSCell*, CallData& callData)
 {
     // equivalent to 'new Array(....)'
     callData.native.function = callArrayConstructor;
@@ -113,7 +123,7 @@ CallType ArrayConstructor::getCallData(CallData& callData)
 
 EncodedJSValue JSC_HOST_CALL arrayConstructorIsArray(ExecState* exec)
 {
-    return JSValue::encode(jsBoolean(exec->argument(0).inherits(&JSArray::s_info)));
+    return JSValue::encode(jsBoolean(exec->argument(0).inherits(JSArray::info())));
 }
 
 } // namespace JSC