blob: 77d8caf23681fd8a0beb599ad701d17bd8fb598e [file] [log] [blame]
/*
* Copyright (C) 2017 Caio Lima <ticaiolima@gmail.com>
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "BigIntConstructor.h"
#include "BigIntPrototype.h"
#include "JSBigInt.h"
#include "JSCInlines.h"
#include "JSGlobalObjectFunctions.h"
#include "Lookup.h"
#include "ParseInt.h"
#include "StructureInlines.h"
namespace JSC {
static EncodedJSValue JSC_HOST_CALL bigIntConstructorFuncAsUintN(JSGlobalObject*, CallFrame*);
static EncodedJSValue JSC_HOST_CALL bigIntConstructorFuncAsIntN(JSGlobalObject*, CallFrame*);
} // namespace JSC
#include "BigIntConstructor.lut.h"
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(BigIntConstructor);
const ClassInfo BigIntConstructor::s_info = { "Function", &Base::s_info, &bigIntConstructorTable, nullptr, CREATE_METHOD_TABLE(BigIntConstructor) };
/* Source for BigIntConstructor.lut.h
@begin bigIntConstructorTable
asUintN bigIntConstructorFuncAsUintN DontEnum|Function 2
asIntN bigIntConstructorFuncAsIntN DontEnum|Function 2
@end
*/
static EncodedJSValue JSC_HOST_CALL callBigIntConstructor(JSGlobalObject*, CallFrame*);
BigIntConstructor::BigIntConstructor(VM& vm, Structure* structure)
: InternalFunction(vm, structure, callBigIntConstructor, nullptr)
{
}
void BigIntConstructor::finishCreation(VM& vm, BigIntPrototype* bigIntPrototype)
{
Base::finishCreation(vm, "BigInt"_s, NameAdditionMode::WithoutStructureTransition);
ASSERT(inherits(vm, info()));
putDirectWithoutTransition(vm, vm.propertyNames->prototype, bigIntPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(1), PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum);
}
// ------------------------------ Functions ---------------------------
static bool isSafeInteger(JSValue argument)
{
if (argument.isInt32())
return true;
if (!argument.isDouble())
return false;
double number = argument.asDouble();
return trunc(number) == number && std::abs(number) <= maxSafeInteger();
}
static EncodedJSValue toBigInt(JSGlobalObject* globalObject, JSValue argument)
{
ASSERT(argument.isPrimitive());
VM& vm = globalObject->vm();
if (argument.isBigInt())
return JSValue::encode(argument);
auto scope = DECLARE_THROW_SCOPE(vm);
if (argument.isBoolean())
RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::createFrom(vm, argument.asBoolean())));
if (argument.isUndefinedOrNull() || argument.isNumber() || argument.isSymbol())
return throwVMTypeError(globalObject, scope, "Invalid argument type in ToBigInt operation"_s);
ASSERT(argument.isString());
RELEASE_AND_RETURN(scope, toStringView(globalObject, argument, [&] (StringView view) {
return JSValue::encode(JSBigInt::parseInt(globalObject, view));
}));
}
static EncodedJSValue JSC_HOST_CALL callBigIntConstructor(JSGlobalObject* globalObject, CallFrame* callFrame)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSValue value = callFrame->argument(0);
JSValue primitive = value.toPrimitive(globalObject);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
if (primitive.isNumber()) {
if (!isSafeInteger(primitive))
return throwVMError(globalObject, scope, createRangeError(globalObject, "Not safe integer"_s));
scope.release();
if (primitive.isInt32())
return JSValue::encode(JSBigInt::createFrom(vm, primitive.asInt32()));
if (primitive.isUInt32())
return JSValue::encode(JSBigInt::createFrom(vm, primitive.asUInt32()));
return JSValue::encode(JSBigInt::createFrom(vm, static_cast<int64_t>(primitive.asDouble())));
}
EncodedJSValue result = toBigInt(globalObject, primitive);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
return result;
}
EncodedJSValue JSC_HOST_CALL bigIntConstructorFuncAsUintN(JSGlobalObject*, CallFrame*)
{
// FIXME: [ESNext][BigInt] Implement BigInt.asIntN and BigInt.asUintN
// https://bugs.webkit.org/show_bug.cgi?id=181144
return encodedJSUndefined();
}
EncodedJSValue JSC_HOST_CALL bigIntConstructorFuncAsIntN(JSGlobalObject*, CallFrame*)
{
// FIXME: [ESNext][BigInt] Implement BigInt.asIntN and BigInt.asUintN
// https://bugs.webkit.org/show_bug.cgi?id=181144
return encodedJSUndefined();
}
} // namespace JSC