| /* |
| * 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. 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 "Error.h" |
| #include "JSBigInt.h" |
| #include "JSCBuiltins.h" |
| #include "JSCInlines.h" |
| #include "JSCast.h" |
| #include "JSFunction.h" |
| #include "JSGlobalObject.h" |
| #include "JSString.h" |
| #include "NumberPrototype.h" |
| #include <wtf/Assertions.h> |
| |
| namespace JSC { |
| |
| static EncodedJSValue JSC_HOST_CALL bigIntProtoFuncToString(ExecState*); |
| static EncodedJSValue JSC_HOST_CALL bigIntProtoFuncToLocaleString(ExecState*); |
| static EncodedJSValue JSC_HOST_CALL bigIntProtoFuncValueOf(ExecState*); |
| |
| } |
| |
| #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())); |
| putDirectWithoutTransition(vm, vm.propertyNames->toStringTagSymbol, jsString(&vm, "BigInt"), PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly); |
| } |
| |
| // ------------------------------ Functions --------------------------- |
| |
| static ALWAYS_INLINE JSBigInt* toThisBigIntValue(VM& vm, JSValue thisValue) |
| { |
| if (thisValue.isCell()) { |
| if (JSBigInt* bigInt = jsDynamicCast<JSBigInt*>(vm, thisValue.asCell())) |
| return bigInt; |
| |
| if (BigIntObject* bigIntObject = jsDynamicCast<BigIntObject*>(vm, thisValue.asCell())) |
| return bigIntObject->internalValue(); |
| } |
| |
| return nullptr; |
| } |
| |
| EncodedJSValue JSC_HOST_CALL bigIntProtoFuncToString(ExecState* state) |
| { |
| VM& vm = state->vm(); |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| |
| JSBigInt* value = toThisBigIntValue(vm, state->thisValue()); |
| if (!value) |
| return throwVMTypeError(state, scope, "'this' value must be a BigInt or BigIntObject"_s); |
| |
| ASSERT(value); |
| |
| int32_t radix = extractToStringRadixArgument(state, state->argument(0), scope); |
| RETURN_IF_EXCEPTION(scope, encodedJSValue()); |
| |
| String resultString = value->toString(state, radix); |
| RETURN_IF_EXCEPTION(scope, encodedJSValue()); |
| scope.release(); |
| if (resultString.length() == 1) |
| return JSValue::encode(vm.smallStrings.singleCharacterString(resultString[0])); |
| |
| return JSValue::encode(jsNontrivialString(&vm, resultString)); |
| } |
| |
| EncodedJSValue JSC_HOST_CALL bigIntProtoFuncToLocaleString(ExecState* state) |
| { |
| return bigIntProtoFuncToString(state); |
| } |
| |
| EncodedJSValue JSC_HOST_CALL bigIntProtoFuncValueOf(ExecState* state) |
| { |
| VM& vm = state->vm(); |
| if (JSBigInt* value = toThisBigIntValue(vm, state->thisValue())) |
| return JSValue::encode(value); |
| |
| auto scope = DECLARE_THROW_SCOPE(vm); |
| return throwVMTypeError(state, scope, "'this' value must be a BigInt or BigIntObject"_s); |
| } |
| |
| } // namespace JSC |