X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/81345200c95645a1b0d2635520f96ad55dfde63f..refs/heads/master:/runtime/NumberConstructor.cpp diff --git a/runtime/NumberConstructor.cpp b/runtime/NumberConstructor.cpp index 04c5098..0a21512 100644 --- a/runtime/NumberConstructor.cpp +++ b/runtime/NumberConstructor.cpp @@ -26,34 +26,22 @@ #include "NumberObject.h" #include "NumberPrototype.h" #include "JSCInlines.h" +#include "JSGlobalObjectFunctions.h" namespace JSC { -static EncodedJSValue numberConstructorNaNValue(ExecState*, JSObject*, EncodedJSValue, PropertyName); -static EncodedJSValue numberConstructorNegInfinity(ExecState*, JSObject*, EncodedJSValue, PropertyName); -static EncodedJSValue numberConstructorPosInfinity(ExecState*, JSObject*, EncodedJSValue, PropertyName); -static EncodedJSValue numberConstructorMaxValue(ExecState*, JSObject*, EncodedJSValue, PropertyName); -static EncodedJSValue numberConstructorMinValue(ExecState*, JSObject*, EncodedJSValue, PropertyName); +static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsFinite(ExecState*); +static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsInteger(ExecState*); +static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsNaN(ExecState*); +static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsSafeInteger(ExecState*); } // namespace JSC -#include "NumberConstructor.lut.h" - namespace JSC { STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(NumberConstructor); -const ClassInfo NumberConstructor::s_info = { "Function", &InternalFunction::s_info, 0, ExecState::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 -@end -*/ +const ClassInfo NumberConstructor::s_info = { "Function", &InternalFunction::s_info, 0, CREATE_METHOD_TABLE(NumberConstructor) }; NumberConstructor::NumberConstructor(VM& vm, Structure* structure) : InternalFunction(vm, structure) @@ -70,36 +58,22 @@ void NumberConstructor::finishCreation(VM& vm, NumberPrototype* numberPrototype) // 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(exec, ExecState::numberConstructorTable(exec->vm()), jsCast(object), propertyName, slot); -} - -static EncodedJSValue numberConstructorNaNValue(ExecState*, JSObject*, EncodedJSValue, PropertyName) -{ - return JSValue::encode(jsNaN()); -} - -static EncodedJSValue numberConstructorNegInfinity(ExecState*, JSObject*, EncodedJSValue, PropertyName) -{ - return JSValue::encode(jsNumber(-std::numeric_limits::infinity())); -} -static EncodedJSValue numberConstructorPosInfinity(ExecState*, JSObject*, EncodedJSValue, PropertyName) -{ - return JSValue::encode(jsNumber(std::numeric_limits::infinity())); -} - -static EncodedJSValue numberConstructorMaxValue(ExecState*, JSObject*, EncodedJSValue, PropertyName) -{ - return JSValue::encode(jsNumber(1.7976931348623157E+308)); -} - -static EncodedJSValue numberConstructorMinValue(ExecState*, JSObject*, EncodedJSValue, PropertyName) -{ - return JSValue::encode(jsNumber(5E-324)); + putDirectWithoutTransition(vm, Identifier::fromString(&vm, "EPSILON"), jsDoubleNumber(std::numeric_limits::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(9007199254740991.0), DontDelete | DontEnum | ReadOnly); + putDirectWithoutTransition(vm, Identifier::fromString(&vm, "MIN_SAFE_INTEGER"), jsDoubleNumber(-9007199254740991.0), DontDelete | DontEnum | ReadOnly); + putDirectWithoutTransition(vm, Identifier::fromString(&vm, "NEGATIVE_INFINITY"), jsDoubleNumber(-std::numeric_limits::infinity()), DontDelete | DontEnum | ReadOnly); + putDirectWithoutTransition(vm, Identifier::fromString(&vm, "POSITIVE_INFINITY"), jsDoubleNumber(std::numeric_limits::infinity()), DontDelete | DontEnum | ReadOnly); + putDirectWithoutTransition(vm, Identifier::fromString(&vm, "NaN"), jsNaN(), DontDelete | DontEnum | ReadOnly); + + putDirectNativeFunctionWithoutTransition(vm, numberPrototype->globalObject(), Identifier::fromString(&vm, "isFinite"), 1, numberConstructorFuncIsFinite, NoIntrinsic, DontEnum | Function); + putDirectNativeFunctionWithoutTransition(vm, numberPrototype->globalObject(), Identifier::fromString(&vm, "isInteger"), 1, numberConstructorFuncIsInteger, NoIntrinsic, DontEnum | Function); + putDirectNativeFunctionWithoutTransition(vm, numberPrototype->globalObject(), Identifier::fromString(&vm, "isNaN"), 1, numberConstructorFuncIsNaN, NoIntrinsic, DontEnum | Function); + putDirectNativeFunctionWithoutTransition(vm, numberPrototype->globalObject(), Identifier::fromString(&vm, "isSafeInteger"), 1, numberConstructorFuncIsSafeInteger, NoIntrinsic, DontEnum | Function); + putDirectNativeFunctionWithoutTransition(vm, numberPrototype->globalObject(), Identifier::fromString(&vm, "parseFloat"), 1, globalFuncParseFloat, NoIntrinsic, DontEnum | Function); + putDirectWithoutTransition(vm, Identifier::fromString(&vm, "parseInt"), numberPrototype->globalObject()->parseIntFunction(), DontEnum | Function); } // ECMA 15.7.1 @@ -129,4 +103,50 @@ CallType NumberConstructor::getCallData(JSCell*, CallData& callData) return CallTypeHost; } +// ECMA-262 20.1.2.2 +static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsFinite(ExecState* exec) +{ + JSValue argument = exec->argument(0); + return JSValue::encode(jsBoolean(argument.isNumber() && (argument.isInt32() || std::isfinite(argument.asDouble())))); +} + +// 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 20.1.2.4 +static EncodedJSValue JSC_HOST_CALL numberConstructorFuncIsNaN(ExecState* exec) +{ + JSValue argument = exec->argument(0); + return JSValue::encode(jsBoolean(argument.isDouble() && std::isnan(argument.asDouble()))); +} + +// 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