WebKit/Source/JavaScriptCore/runtime/BigIntConstructor.cpp at main · WebKit/WebKit · GitHub

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* 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 "ParseInt.h"

namespace JSC {

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorFuncAsUintN);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorFuncAsIntN);

} // namespace JSC

#include "BigIntConstructor.lut.h"

namespace JSC {

STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(BigIntConstructor);

const ClassInfo BigIntConstructor::s_info = { "Function"_s, &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 JSC_DECLARE_HOST_FUNCTION(callBigIntConstructor);

static JSC_DECLARE_HOST_FUNCTION(constructBigIntConstructor);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorAbs);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorCbrt);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorMax);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorMin);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorPow);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorSign);

static JSC_DECLARE_HOST_FUNCTION(bigIntConstructorSqrt);

BigIntConstructor::BigIntConstructor(VM& vm, Structure* structure)

: InternalFunction(vm, structure, callBigIntConstructor, constructBigIntConstructor)

{

}

void BigIntConstructor::finishCreation(VM& vm, BigIntPrototype* bigIntPrototype)

{

Base::finishCreation(vm, 1, "BigInt"_s, PropertyAdditionMode::WithoutStructureTransition);

ASSERT(inherits(info()));

putDirectWithoutTransition(vm, vm.propertyNames->prototype, bigIntPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);

if (Options::useBigIntMathMethods()) {

JSGlobalObject* globalObject = this->globalObject();

JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("abs"_s, bigIntConstructorAbs, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, ImplementationVisibility::Public);

JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("cbrt"_s, bigIntConstructorCbrt, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, ImplementationVisibility::Public);

JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("max"_s, bigIntConstructorMax, static_cast<unsigned>(PropertyAttribute::DontEnum), 2, ImplementationVisibility::Public);

JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("min"_s, bigIntConstructorMin, static_cast<unsigned>(PropertyAttribute::DontEnum), 2, ImplementationVisibility::Public);

JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("pow"_s, bigIntConstructorPow, static_cast<unsigned>(PropertyAttribute::DontEnum), 2, ImplementationVisibility::Public);

JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("sign"_s, bigIntConstructorSign, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, ImplementationVisibility::Public);

JSC_NATIVE_FUNCTION_WITHOUT_TRANSITION("sqrt"_s, bigIntConstructorSqrt, static_cast<unsigned>(PropertyAttribute::DontEnum), 1, ImplementationVisibility::Public);

}

// ------------------------------ Functions ---------------------------

JSC_DEFINE_HOST_FUNCTION(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, PreferNumber);

RETURN_IF_EXCEPTION(scope, encodedJSValue());

if (primitive.isInt32()) {

#if USE(BIGINT32)

return JSValue::encode(jsBigInt32(primitive.asInt32()));

#else

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::createFrom(globalObject, primitive.asInt32())));

#endif

}

if (primitive.isDouble()) {

double number = primitive.asDouble();

if (!isInteger(number))

return throwVMError(globalObject, scope, createRangeError(globalObject, "Not an integer"_s));

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::makeHeapBigIntOrBigInt32(globalObject, primitive.asDouble())));

}

RELEASE_AND_RETURN(scope, JSValue::encode(primitive.toBigInt(globalObject)));

}

JSC_DEFINE_HOST_FUNCTION(constructBigIntConstructor, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

return throwVMError(globalObject, scope, createNotAConstructorError(globalObject, callFrame->jsCallee()));

}

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorFuncAsUintN, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

uint64_t numberOfBits = callFrame->argument(0).toIndex(globalObject, "number of bits"_s);

RETURN_IF_EXCEPTION(scope, { });

JSValue bigInt = callFrame->argument(1).toBigInt(globalObject);

RETURN_IF_EXCEPTION(scope, { });

#if USE(BIGINT32)

if (bigInt.isBigInt32())

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::asUintN(globalObject, numberOfBits, bigInt.bigInt32AsInt32())));

#endif

ASSERT(bigInt.isHeapBigInt());

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::asUintN(globalObject, numberOfBits, bigInt.asHeapBigInt())));

}

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorFuncAsIntN, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

uint64_t numberOfBits = callFrame->argument(0).toIndex(globalObject, "number of bits"_s);

RETURN_IF_EXCEPTION(scope, { });

JSValue bigInt = callFrame->argument(1).toBigInt(globalObject);

RETURN_IF_EXCEPTION(scope, { });

#if USE(BIGINT32)

if (bigInt.isBigInt32())

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::asIntN(globalObject, numberOfBits, bigInt.bigInt32AsInt32())));

#endif

ASSERT(bigInt.isHeapBigInt());

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::asIntN(globalObject, numberOfBits, bigInt.asHeapBigInt())));

}

// https://tc39.es/proposal-bigint-math/#sec-bigint.abs

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorAbs, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

JSValue bigIntValue = callFrame->argument(0);

if (!bigIntValue.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.abs requires the argument to be a BigInt"_s);

return { };

}

#if USE(BIGINT32)

if (bigIntValue.isBigInt32())

return JSValue::encode(jsBigInt32(std::abs(bigIntValue.bigInt32AsInt32())));

#endif

JSBigInt* bigInt = bigIntValue.asHeapBigInt();

if (bigInt->sign())

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::unaryMinus(globalObject, bigInt)));

return JSValue::encode(bigInt);

}

// https://tc39.es/proposal-bigint-math/#sec-bigint.cbrt

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorCbrt, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

JSValue bigIntValue = callFrame->argument(0);

if (!bigIntValue.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.cbrt requires the argument to be a BigInt"_s);

return { };

}

#if USE(BIGINT32)

if (bigIntValue.isBigInt32())

return JSValue::encode(jsBigInt32(static_cast<int32_t>(std::cbrt(static_cast<double>(bigIntValue.bigInt32AsInt32())))));

#endif

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::cbrt(globalObject, bigIntValue.asHeapBigInt())));

}

// https://tc39.es/proposal-bigint-math/#sec-bigint.max

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorMax, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

JSValue result = callFrame->argument(0);

if (!result.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.max requires every argument to be a BigInt"_s);

return { };

}

for (unsigned i = 1, count = callFrame->argumentCount(); i < count; ++i) {

JSValue value = callFrame->uncheckedArgument(i);

if (!value.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.max requires every argument to be a BigInt"_s);

return { };

}

if (JSBigInt::compare(value, result) == JSBigInt::ComparisonResult::GreaterThan)

result = value;

}

RELEASE_AND_RETURN(scope, JSValue::encode(result));

}

// https://tc39.es/proposal-bigint-math/#sec-bigint.min

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorMin, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

JSValue result = callFrame->argument(0);

if (!result.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.min requires every argument to be a BigInt"_s);

return { };

}

for (unsigned i = 1, count = callFrame->argumentCount(); i < count; ++i) {

JSValue value = callFrame->uncheckedArgument(i);

if (!value.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.min requires every argument to be a BigInt"_s);

return { };

}

if (JSBigInt::compare(value, result) == JSBigInt::ComparisonResult::LessThan)

result = value;

}

RELEASE_AND_RETURN(scope, JSValue::encode(result));

}

// https://tc39.es/proposal-bigint-math/#sec-bigint.pow

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorPow, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

JSValue base = callFrame->argument(0);

if (!base.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.pow requires the first argument to be a BigInt"_s);

return { };

}

JSValue exponent = callFrame->argument(1);

if (!exponent.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.pow requires the second argument to be a BigInt"_s);

return { };

}

RELEASE_AND_RETURN(scope, JSValue::encode(jsPow(globalObject, base, exponent)));

}

// https://tc39.es/proposal-bigint-math/#sec-bigint.sign

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorSign, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

JSValue bigIntValue = callFrame->argument(0);

if (!bigIntValue.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.sign requires the argument to be a BigInt"_s);

return { };

}

#if USE(BIGINT32)

if (bigIntValue.isBigInt32()) {

int32_t value = bigIntValue.bigInt32AsInt32();

if (!value)

return JSValue::encode(bigIntValue);

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::makeHeapBigIntOrBigInt32(globalObject, static_cast<int64_t>(value < 0 ? -1 : 1))));

}

#endif

JSBigInt* bigInt = bigIntValue.asHeapBigInt();

if (bigInt->isZero())

return JSValue::encode(bigIntValue);

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::makeHeapBigIntOrBigInt32(globalObject, static_cast<int64_t>(bigInt->sign() ? -1 : 1))));

}

// https://tc39.es/proposal-bigint-math/#sec-bigint.sqrt

JSC_DEFINE_HOST_FUNCTION(bigIntConstructorSqrt, (JSGlobalObject* globalObject, CallFrame* callFrame))

{

VM& vm = globalObject->vm();

auto scope = DECLARE_THROW_SCOPE(vm);

JSValue bigIntValue = callFrame->argument(0);

if (!bigIntValue.isBigInt()) {

throwTypeError(globalObject, scope, "BigInt.sqrt requires the argument to be a positive BigInt"_s);

return { };

}

#if USE(BIGINT32)

if (bigIntValue.isBigInt32()) {

int32_t value = bigIntValue.bigInt32AsInt32();

if (value < 0) {

throwRangeError(globalObject, scope, "BigInt.sqrt requires the argument to be a positive BigInt"_s);

return { };

}

return JSValue::encode(jsBigInt32(static_cast<int32_t>(std::sqrt(static_cast<double>(value)))));

}

#endif

JSBigInt* bigInt = bigIntValue.asHeapBigInt();

if (bigInt->sign()) {

throwRangeError(globalObject, scope, "BigInt.sqrt requires the argument to be a positive BigInt"_s);

return { };

}

RELEASE_AND_RETURN(scope, JSValue::encode(JSBigInt::sqrt(globalObject, bigInt)));

}

} // namespace JSC

WebKit/Source/JavaScriptCore/runtime/BigIntConstructor.cpp at main · WebKit/WebKit · GitHub

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