| /* |
| * Copyright (C) 2017 Caio Lima <ticaiolima@gmail.com>. |
| * Copyright (C) 2017-2020 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. AND ITS CONTRIBUTORS ``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 ITS 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 "BigIntPrototype.h" |
| |
| #include "BigIntObject.h" |
| #include "IntegrityInlines.h" |
| #include "IntlNumberFormatInlines.h" |
| #include "JSBigInt.h" |
| #include "JSCInlines.h" |
| #include "JSCast.h" |
| #include "NumberPrototype.h" |
| #include <wtf/Assertions.h> |
| |
| namespace JSC { |
| |
| static JSC_DECLARE_HOST_FUNCTION(bigIntProtoFuncToString); |
| static JSC_DECLARE_HOST_FUNCTION(bigIntProtoFuncToLocaleString); |
| static JSC_DECLARE_HOST_FUNCTION(bigIntProtoFuncValueOf); |
| |
| } |
| |
| #include "BigIntPrototype.lut.h" |
| |
| namespace JSC { |
| |
| const ClassInfo BigIntPrototype::s_info = { "BigInt", &Base::s_info, &bigIntPrototypeTable, nullptr, CREATE_METHOD_TABLE(BigIntPrototype) }; |
| |
| /* Source for BigIntPrototype.lut.h |
| @begin bigIntPrototypeTable |
| toString bigIntProtoFuncToString DontEnum|Function 0 |
| toLocaleString bigIntProtoFuncToLocaleString DontEnum|Function 0 |
| valueOf bigIntProtoFuncValueOf DontEnum|Function 0 |
| @end |
| */ |
| |
| STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(BigIntPrototype); |
| |
| BigIntPrototype::BigIntPrototype(VM& vm, Structure* structure) |
| : JSNonFinalObject(vm, structure) |
| { |
| } |
| |
| void BigIntPrototype::finishCreation(VM& vm, JSGlobalObject*) |
| { |
| Base::finishCreation(vm); |
| ASSERT(inherits(vm, info())); |
| JSC_TO_STRING_TAG_WITHOUT_TRANSITION(); |
| } |
| |
| // ------------------------------ Functions --------------------------- |
| |
| static ALWAYS_INLINE JSBigInt* toThisBigIntValue(JSGlobalObject* globalObject, JSValue thisValue) |
| { |
| VM& vm = globalObject->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| #if USE(BIGINT32) |
| // FIXME: heap-allocating all big ints is inneficient, but re-implementing toString for small BigInts is enough work that I'm deferring it to a later patch. |
| if (thisValue.isBigInt32()) |
| RELEASE_AND_RETURN(scope, JSBigInt::createFrom(globalObject, thisValue.bigInt32AsInt32())); |
| #endif |
| |
| if (thisValue.isCell()) { |
| if (JSBigInt* bigInt = jsDynamicCast<JSBigInt*>(vm, thisValue.asCell())) |
| return bigInt; |
| |
| if (BigIntObject* bigIntObject = jsDynamicCast<BigIntObject*>(vm, thisValue.asCell())) { |
| JSValue bigInt = bigIntObject->internalValue(); |
| #if USE(BIGINT32) |
| if (bigInt.isBigInt32()) |
| RELEASE_AND_RETURN(scope, JSBigInt::createFrom(globalObject, bigInt.bigInt32AsInt32())); |
| #endif |
| return bigInt.asHeapBigInt(); |
| } |
| } |
| |
| throwTypeError(globalObject, scope, "'this' value must be a BigInt or BigIntObject"_s); |
| return nullptr; |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(bigIntProtoFuncToString, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| JSBigInt* value = toThisBigIntValue(globalObject, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(scope, { }); |
| |
| ASSERT(value); |
| |
| Integrity::auditStructureID(vm, value->structureID()); |
| int32_t radix = extractToStringRadixArgument(globalObject, callFrame->argument(0), scope); |
| RETURN_IF_EXCEPTION(scope, { }); |
| |
| String resultString = value->toString(globalObject, radix); |
| RETURN_IF_EXCEPTION(scope, { }); |
| scope.release(); |
| if (resultString.length() == 1) |
| return JSValue::encode(vm.smallStrings.singleCharacterString(resultString[0])); |
| |
| return JSValue::encode(jsNontrivialString(vm, resultString)); |
| } |
| |
| // FIXME: this function should introduce the right separators for thousands and similar things. |
| JSC_DEFINE_HOST_FUNCTION(bigIntProtoFuncToLocaleString, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| JSBigInt* thisValue = toThisBigIntValue(globalObject, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(scope, { }); |
| |
| auto* numberFormat = IntlNumberFormat::create(vm, globalObject->numberFormatStructure()); |
| numberFormat->initializeNumberFormat(globalObject, callFrame->argument(0), callFrame->argument(1)); |
| RETURN_IF_EXCEPTION(scope, { }); |
| |
| auto value = toIntlMathematicalValue(globalObject, thisValue); |
| RETURN_IF_EXCEPTION(scope, { }); |
| |
| if (auto number = value.tryGetDouble()) |
| RELEASE_AND_RETURN(scope, JSValue::encode(numberFormat->format(globalObject, number.value()))); |
| |
| RELEASE_AND_RETURN(scope, JSValue::encode(numberFormat->format(globalObject, WTFMove(value)))); |
| } |
| |
| JSC_DEFINE_HOST_FUNCTION(bigIntProtoFuncValueOf, (JSGlobalObject* globalObject, CallFrame* callFrame)) |
| { |
| VM& vm = globalObject->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| JSBigInt* value = toThisBigIntValue(globalObject, callFrame->thisValue()); |
| RETURN_IF_EXCEPTION(scope, { }); |
| |
| Integrity::auditStructureID(vm, value->structureID()); |
| return JSValue::encode(value); |
| } |
| |
| } // namespace JSC |