| | 1 | /* |
| | 2 | * Copyright (C) 2012 Apple Inc. All rights reserved. |
| | 3 | * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>. |
| | 4 | * |
| | 5 | * Redistribution and use in source and binary forms, with or without |
| | 6 | * modification, are permitted provided that the following conditions |
| | 7 | * are met: |
| | 8 | * 1. Redistributions of source code must retain the above copyright |
| | 9 | * notice, this list of conditions and the following disclaimer. |
| | 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 11 | * notice, this list of conditions and the following disclaimer in the |
| | 12 | * documentation and/or other materials provided with the distribution. |
| | 13 | * |
| | 14 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| | 15 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| | 16 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| | 17 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| | 18 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| | 19 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| | 20 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| | 21 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| | 22 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| | 23 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| | 24 | * THE POSSIBILITY OF SUCH DAMAGE. |
| | 25 | */ |
| | 26 | |
| | 27 | #include "config.h" |
| | 28 | #include "Symbol.h" |
| | 29 | |
| | 30 | #include "Error.h" |
| | 31 | #include "JSCInlines.h" |
| | 32 | #include "SymbolObject.h" |
| | 33 | |
| | 34 | namespace JSC { |
| | 35 | |
| | 36 | const ClassInfo Symbol::s_info = { "symbol", nullptr, nullptr, CREATE_METHOD_TABLE(Symbol) }; |
| | 37 | |
| | 38 | Symbol::Symbol(VM& vm) |
| | 39 | : Base(vm, vm.symbolStructure.get()) |
| | 40 | , m_privateName() |
| | 41 | { |
| | 42 | } |
| | 43 | |
| | 44 | Symbol::Symbol(VM& vm, const String& string) |
| | 45 | : Base(vm, vm.symbolStructure.get()) |
| | 46 | , m_privateName(PrivateName::Description, string) |
| | 47 | { |
| | 48 | } |
| | 49 | |
| | 50 | Symbol::Symbol(VM& vm, SymbolImpl& uid) |
| | 51 | : Base(vm, vm.symbolStructure.get()) |
| | 52 | , m_privateName(uid) |
| | 53 | { |
| | 54 | } |
| | 55 | |
| | 56 | inline SymbolObject* SymbolObject::create(VM& vm, JSGlobalObject* globalObject, Symbol* symbol) |
| | 57 | { |
| | 58 | SymbolObject* object = new (NotNull, allocateCell<SymbolObject>(vm.heap)) SymbolObject(vm, globalObject->symbolObjectStructure()); |
| | 59 | object->finishCreation(vm, symbol); |
| | 60 | return object; |
| | 61 | } |
| | 62 | |
| | 63 | JSValue Symbol::toPrimitive(ExecState*, PreferredPrimitiveType) const |
| | 64 | { |
| | 65 | return const_cast<Symbol*>(this); |
| | 66 | } |
| | 67 | |
| | 68 | bool Symbol::getPrimitiveNumber(ExecState* exec, double& number, JSValue& result) const |
| | 69 | { |
| | 70 | result = this; |
| | 71 | number = toNumber(exec); |
| | 72 | return true; |
| | 73 | } |
| | 74 | |
| | 75 | JSObject* Symbol::toObject(ExecState* exec, JSGlobalObject* globalObject) const |
| | 76 | { |
| | 77 | return SymbolObject::create(exec->vm(), globalObject, const_cast<Symbol*>(this)); |
| | 78 | } |
| | 79 | |
| | 80 | double Symbol::toNumber(ExecState* exec) const |
| | 81 | { |
| | 82 | throwTypeError(exec); |
| | 83 | return 0.0; |
| | 84 | } |
| | 85 | |
| | 86 | void Symbol::destroy(JSCell* cell) |
| | 87 | { |
| | 88 | static_cast<Symbol*>(cell)->Symbol::~Symbol(); |
| | 89 | } |
| | 90 | |
| | 91 | String Symbol::descriptiveString() const |
| | 92 | { |
| | 93 | return makeString("Symbol(", String(privateName().uid()), ')'); |
| | 94 | } |
| | 95 | |
| | 96 | } // namespace JSC |
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