webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 64 insertions, 46 deletions

diff --git a/Source/JavaScriptCore/runtime/NumberConstructor.cpp b/Source/JavaScriptCore/runtime/NumberConstructor.cpp
index 8e858a24f..a06378b83 100644
--- a/Source/JavaScriptCore/runtime/NumberConstructor.cpp
+++ b/Source/JavaScriptCore/runtime/NumberConstructor.cpp
@@ -1,6 +1,6 @@
 /*
  *  Copyright (C) 1999-2000,2003 Harri Porten (porten@kde.org)
- *  Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved.
+ *  Copyright (C) 2007, 2008, 2011, 2015-2016 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
@@ -25,15 +25,14 @@
 #include "Lookup.h"
 #include "NumberObject.h"
 #include "NumberPrototype.h"
-#include "Operations.h"
+#include "JSCInlines.h"
+#include "JSGlobalObjectFunctions.h"
+#include "StructureInlines.h"
 
 namespace JSC {
 
-static EncodedJSValue numberConstructorNaNValue(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName);
-static EncodedJSValue numberConstructorNegInfinity(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName);
-static EncodedJSValue numberConstructorPosInfinity(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName);
-static EncodedJSValue numberConstructorMaxValue(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName);
-static EncodedJSValue numberConstructorMinValue(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName);
+static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsInteger(ExecState*);
+static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsSafeInteger(ExecState*);
 
 } // namespace JSC
 
@@ -43,15 +42,15 @@ namespace JSC {
 
 STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(NumberConstructor);
 
-const ClassInfo NumberConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::numberConstructorTable, CREATE_METHOD_TABLE(NumberConstructor) };
+const ClassInfo NumberConstructor::s_info = { "Function", &InternalFunction::s_info, &numberConstructorTable, CREATE_METHOD_TABLE(NumberConstructor) };
 
 /* Source for NumberConstructor.lut.h
 @begin numberConstructorTable
-   NaN                   numberConstructorNaNValue       DontEnum|DontDelete|ReadOnly
-   NEGATIVE_INFINITY     numberConstructorNegInfinity    DontEnum|DontDelete|ReadOnly
-   POSITIVE_INFINITY     numberConstructorPosInfinity    DontEnum|DontDelete|ReadOnly
-   MAX_VALUE             numberConstructorMaxValue       DontEnum|DontDelete|ReadOnly
-   MIN_VALUE             numberConstructorMinValue       DontEnum|DontDelete|ReadOnly
+  isFinite       JSBuiltin                           DontEnum|Function 1
+  isInteger      numberConstructorFuncIsInteger      DontEnum|Function 1
+  isNaN          JSBuiltin                           DontEnum|Function 1
+  isSafeInteger  numberConstructorFuncIsSafeInteger  DontEnum|Function 1
+  parseFloat     globalFuncParseFloat                DontEnum|Function 1
 @end
 */
 
@@ -63,58 +62,45 @@ NumberConstructor::NumberConstructor(VM& vm, Structure* structure)
 void NumberConstructor::finishCreation(VM& vm, NumberPrototype* numberPrototype)
 {
     Base::finishCreation(vm, NumberPrototype::info()->className);
-    ASSERT(inherits(info()));
+    ASSERT(inherits(vm, info()));
 
     // Number.Prototype
     putDirectWithoutTransition(vm, vm.propertyNames->prototype, numberPrototype, DontEnum | DontDelete | ReadOnly);
 
     // no. of arguments for constructor
     putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
-}
-
-bool NumberConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
-{
-    return getStaticValueSlot<NumberConstructor, InternalFunction>(exec, ExecState::numberConstructorTable(exec->vm()), jsCast<NumberConstructor*>(object), propertyName, slot);
-}
-
-static EncodedJSValue numberConstructorNaNValue(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName)
-{
-    return JSValue::encode(jsNaN());
-}
 
-static EncodedJSValue numberConstructorNegInfinity(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName)
-{
-    return JSValue::encode(jsNumber(-std::numeric_limits<double>::infinity()));
-}
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "EPSILON"), jsDoubleNumber(std::numeric_limits<double>::epsilon()), DontDelete | DontEnum | ReadOnly);
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "MAX_VALUE"), jsDoubleNumber(1.7976931348623157E+308), DontDelete | DontEnum | ReadOnly);
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "MIN_VALUE"), jsDoubleNumber(5E-324), DontDelete | DontEnum | ReadOnly);
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "MAX_SAFE_INTEGER"), jsDoubleNumber(maxSafeInteger()), DontDelete | DontEnum | ReadOnly);
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "MIN_SAFE_INTEGER"), jsDoubleNumber(minSafeInteger()), DontDelete | DontEnum | ReadOnly);
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "NEGATIVE_INFINITY"), jsDoubleNumber(-std::numeric_limits<double>::infinity()), DontDelete | DontEnum | ReadOnly);
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "POSITIVE_INFINITY"), jsDoubleNumber(std::numeric_limits<double>::infinity()), DontDelete | DontEnum | ReadOnly);
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "NaN"), jsNaN(), DontDelete | DontEnum | ReadOnly);
 
-static EncodedJSValue numberConstructorPosInfinity(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName)
-{
-    return JSValue::encode(jsNumber(std::numeric_limits<double>::infinity()));
-}
-
-static EncodedJSValue numberConstructorMaxValue(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName)
-{
-    return JSValue::encode(jsNumber(1.7976931348623157E+308));
-}
-
-static EncodedJSValue numberConstructorMinValue(ExecState*, EncodedJSValue, EncodedJSValue, PropertyName)
-{
-    return JSValue::encode(jsNumber(5E-324));
+    putDirectWithoutTransition(vm, Identifier::fromString(&vm, "parseInt"), numberPrototype->globalObject()->parseIntFunction(), DontEnum);
 }
 
 // ECMA 15.7.1
 static EncodedJSValue JSC_HOST_CALL constructWithNumberConstructor(ExecState* exec)
 {
-    NumberObject* object = NumberObject::create(exec->vm(), asInternalFunction(exec->callee())->globalObject()->numberObjectStructure());
+    VM& vm = exec->vm();
+    auto scope = DECLARE_THROW_SCOPE(vm);
     double n = exec->argumentCount() ? exec->uncheckedArgument(0).toNumber(exec) : 0;
-    object->setInternalValue(exec->vm(), jsNumber(n));
+    RETURN_IF_EXCEPTION(scope, encodedJSValue());
+    Structure* structure = InternalFunction::createSubclassStructure(exec, exec->newTarget(), exec->lexicalGlobalObject()->numberObjectStructure());
+    RETURN_IF_EXCEPTION(scope, encodedJSValue());
+
+    NumberObject* object = NumberObject::create(vm, structure);
+    object->setInternalValue(vm, jsNumber(n));
     return JSValue::encode(object);
 }
 
 ConstructType NumberConstructor::getConstructData(JSCell*, ConstructData& constructData)
 {
     constructData.native.function = constructWithNumberConstructor;
-    return ConstructTypeHost;
+    return ConstructType::Host;
 }
 
 // ECMA 15.7.2
@@ -126,7 +112,39 @@ static EncodedJSValue JSC_HOST_CALL callNumberConstructor(ExecState* exec)
 CallType NumberConstructor::getCallData(JSCell*, CallData& callData)
 {
     callData.native.function = callNumberConstructor;
-    return CallTypeHost;
+    return CallType::Host;
+}
+
+// ECMA-262 20.1.2.3
+static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsInteger(ExecState* exec)
+{
+    JSValue argument = exec->argument(0);
+    bool isInteger;
+    if (argument.isInt32())
+        isInteger = true;
+    else if (!argument.isDouble())
+        isInteger = false;
+    else {
+        double number = argument.asDouble();
+        isInteger = std::isfinite(number) && trunc(number) == number;
+    }
+    return JSValue::encode(jsBoolean(isInteger));
+}
+
+// ECMA-262 20.1.2.5
+static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsSafeInteger(ExecState* exec)
+{
+    JSValue argument = exec->argument(0);
+    bool isInteger;
+    if (argument.isInt32())
+        isInteger = true;
+    else if (!argument.isDouble())
+        isInteger = false;
+    else {
+        double number = argument.asDouble();
+        isInteger = trunc(number) == number && std::abs(number) <= 9007199254740991.0;
+    }
+    return JSValue::encode(jsBoolean(isInteger));
 }
 
 } // namespace JSC