15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright 2005 Frerich Raabe <raabe@kde.org> 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2006 Apple Computer, Inc. 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 802772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch * 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 1402772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch * 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef XPathValue_h 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#define XPathValue_h 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3053e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/xml/XPathNodeSet.h" 31e1f1df5f01594c0e62e751e4b46e779b85c2faa5Torne (Richard Coles)#include "wtf/text/WTFString.h" 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 33c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 355d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)namespace XPath { 365d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 37197021e6b966cfb06891637935ef33fff06433d1Ben Murdochstruct EvaluationContext; 38197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch 395d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)class ValueData : public RefCountedWillBeGarbageCollectedFinalized<ValueData> { 405d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)public: 415d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) static PassRefPtrWillBeRawPtr<ValueData> create() { return adoptRefWillBeNoop(new ValueData); } 425d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) static PassRefPtrWillBeRawPtr<ValueData> create(const NodeSet& nodeSet) { return adoptRefWillBeNoop(new ValueData(nodeSet)); } 435d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) static PassRefPtrWillBeRawPtr<ValueData> create(PassOwnPtrWillBeRawPtr<NodeSet> nodeSet) { return adoptRefWillBeNoop(new ValueData(nodeSet)); } 445d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) static PassRefPtrWillBeRawPtr<ValueData> create(const String& string) { return adoptRefWillBeNoop(new ValueData(string)); } 455d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) void trace(Visitor*); 465d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) NodeSet& nodeSet() { return *m_nodeSet; } 475d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 485d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) String m_string; 495d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 505d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)private: 515d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) ValueData() : m_nodeSet(NodeSet::create()) { } 525d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) explicit ValueData(const NodeSet& nodeSet) : m_nodeSet(NodeSet::create(nodeSet)) { } 535d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) explicit ValueData(PassOwnPtrWillBeRawPtr<NodeSet> nodeSet) : m_nodeSet(nodeSet) { } 545d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) explicit ValueData(const String& string) : m_string(string), m_nodeSet(NodeSet::create()) { } 555d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 565d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) OwnPtrWillBeMember<NodeSet> m_nodeSet; 575d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)}; 585d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 595d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)// Copying Value objects makes their data partially shared, so care has to be taken when dealing with copies. 605d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)class Value { 615d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) DISALLOW_ALLOCATION(); 625d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)public: 635d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) enum Type { NodeSetValue, BooleanValue, NumberValue, StringValue }; 645d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 655d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(unsigned value) : m_type(NumberValue), m_bool(false), m_number(value) { } 665d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(unsigned long value) : m_type(NumberValue), m_bool(false), m_number(value) { } 675d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(double value) : m_type(NumberValue), m_bool(false), m_number(value) { } 685d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 695d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(const char* value) : m_type(StringValue), m_bool(false), m_number(0), m_data(ValueData::create(value)) { } 705d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(const String& value) : m_type(StringValue), m_bool(false), m_number(0), m_data(ValueData::create(value)) { } 715d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(const NodeSet& value) : m_type(NodeSetValue), m_bool(false), m_number(0), m_data(ValueData::create(value)) { } 725d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(Node* value) : m_type(NodeSetValue), m_bool(false), m_number(0), m_data(ValueData::create()) { m_data->nodeSet().append(value); } 735d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) void trace(Visitor*); 745d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 755d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) // This is needed to safely implement constructing from bool - with normal 765d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) // function overloading, any pointer type would match. 775d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) template<typename T> Value(T); 785d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 795d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) static const struct AdoptTag { } adopt; 805d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Value(PassOwnPtrWillBeRawPtr<NodeSet> value, const AdoptTag&) : m_type(NodeSetValue), m_bool(false), m_number(0), m_data(ValueData::create(value)) { } 815d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 825d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Type type() const { return m_type; } 835d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 845d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) bool isNodeSet() const { return m_type == NodeSetValue; } 855d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) bool isBoolean() const { return m_type == BooleanValue; } 865d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) bool isNumber() const { return m_type == NumberValue; } 875d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) bool isString() const { return m_type == StringValue; } 885d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 89197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch // If this is called during XPathExpression::evaluate(), EvaluationContext 90197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch // should be passed. 91197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch const NodeSet& toNodeSet(EvaluationContext*) const; 92197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch NodeSet& modifiableNodeSet(EvaluationContext&); 935d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) bool toBoolean() const; 945d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) double toNumber() const; 955d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) String toString() const; 965d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 975d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)private: 985d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) Type m_type; 995d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) bool m_bool; 1005d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) double m_number; 1015d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) RefPtrWillBeMember<ValueData> m_data; 1025d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)}; 1035d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 1045d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)template<> 1055d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)inline Value::Value(bool value) 1065d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) : m_type(BooleanValue) 1075d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) , m_bool(value) 1085d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) , m_number(0) 1095d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles){ 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1125d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)} 1135d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) 1145d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)} 1155d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)#endif // XPathValue_h 116