Move JSONValues.cpp/.h to Source/platform/

Source/core/platform/JSONValues.h

-/*
- * Copyright (C) 2009 Google 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:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
- * OWNER 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.
- */
-
-#ifndef JSONValues_h
-#define JSONValues_h
-
-#include "wtf/Forward.h"
-#include "wtf/HashMap.h"
-#include "wtf/RefCounted.h"
-#include "wtf/Vector.h"
-#include "wtf/text/StringHash.h"
-#include "wtf/text/WTFString.h"
-
-namespace WebCore {
-
-class JSONArray;
-class JSONObject;
-
-class JSONValue : public RefCounted<JSONValue> {
-public:
-    static const int maxDepth = 1000;
-
-    JSONValue() : m_type(TypeNull) { }
-    virtual ~JSONValue() { }
-
-    static PassRefPtr<JSONValue> null()
-    {
-        return adoptRef(new JSONValue());
-    }
-
-    typedef enum {
-        TypeNull = 0,
-        TypeBoolean,
-        TypeNumber,
-        TypeString,
-        TypeObject,
-        TypeArray
-    } Type;
-
-    Type type() const { return m_type; }
-
-    bool isNull() const { return m_type == TypeNull; }
-
-    virtual bool asBoolean(bool* output) const;
-    virtual bool asNumber(double* output) const;
-    virtual bool asNumber(long* output) const;
-    virtual bool asNumber(int* output) const;
-    virtual bool asNumber(unsigned long* output) const;
-    virtual bool asNumber(unsigned* output) const;
-    virtual bool asString(String* output) const;
-    virtual bool asValue(RefPtr<JSONValue>* output);
-    virtual bool asObject(RefPtr<JSONObject>* output);
-    virtual bool asArray(RefPtr<JSONArray>* output);
-    virtual PassRefPtr<JSONObject> asObject();
-    virtual PassRefPtr<JSONArray> asArray();
-
-    String toJSONString() const;
-    virtual void writeJSON(StringBuilder* output) const;
-
-protected:
-    explicit JSONValue(Type type) : m_type(type) { }
-
-private:
-    Type m_type;
-};
-
-class JSONBasicValue : public JSONValue {
-public:
-
-    static PassRefPtr<JSONBasicValue> create(bool value)
-    {
-        return adoptRef(new JSONBasicValue(value));
-    }
-
-    static PassRefPtr<JSONBasicValue> create(int value)
-    {
-        return adoptRef(new JSONBasicValue(value));
-    }
-
-    static PassRefPtr<JSONBasicValue> create(double value)
-    {
-        return adoptRef(new JSONBasicValue(value));
-    }
-
-    virtual bool asBoolean(bool* output) const;
-    virtual bool asNumber(double* output) const;
-    virtual bool asNumber(long* output) const;
-    virtual bool asNumber(int* output) const;
-    virtual bool asNumber(unsigned long* output) const;
-    virtual bool asNumber(unsigned* output) const;
-
-    virtual void writeJSON(StringBuilder* output) const;
-
-private:
-    explicit JSONBasicValue(bool value) : JSONValue(TypeBoolean), m_boolValue(value) { }
-    explicit JSONBasicValue(int value) : JSONValue(TypeNumber), m_doubleValue((double)value) { }
-    explicit JSONBasicValue(double value) : JSONValue(TypeNumber), m_doubleValue(value) { }
-
-    union {
-        bool m_boolValue;
-        double m_doubleValue;
-    };
-};
-
-class JSONString : public JSONValue {
-public:
-    static PassRefPtr<JSONString> create(const String& value)
-    {
-        return adoptRef(new JSONString(value));
-    }
-
-    static PassRefPtr<JSONString> create(const char* value)
-    {
-        return adoptRef(new JSONString(value));
-    }
-
-    virtual bool asString(String* output) const;
-
-    virtual void writeJSON(StringBuilder* output) const;
-
-private:
-    explicit JSONString(const String& value) : JSONValue(TypeString), m_stringValue(value) { }
-    explicit JSONString(const char* value) : JSONValue(TypeString), m_stringValue(value) { }
-
-    String m_stringValue;
-};
-
-class JSONObjectBase : public JSONValue {
-private:
-    typedef HashMap<String, RefPtr<JSONValue> > Dictionary;
-
-public:
-    typedef Dictionary::iterator iterator;
-    typedef Dictionary::const_iterator const_iterator;
-
-    virtual PassRefPtr<JSONObject> asObject();
-    JSONObject* openAccessors();
-
-protected:
-    ~JSONObjectBase();
-
-    virtual bool asObject(RefPtr<JSONObject>* output);
-
-    void setBoolean(const String& name, bool);
-    void setNumber(const String& name, double);
-    void setString(const String& name, const String&);
-    void setValue(const String& name, PassRefPtr<JSONValue>);
-    void setObject(const String& name, PassRefPtr<JSONObject>);
-    void setArray(const String& name, PassRefPtr<JSONArray>);
-
-    iterator find(const String& name);
-    const_iterator find(const String& name) const;
-    bool getBoolean(const String& name, bool* output) const;
-    template<class T> bool getNumber(const String& name, T* output) const
-    {
-        RefPtr<JSONValue> value = get(name);
-        if (!value)
-            return false;
-        return value->asNumber(output);
-    }
-    bool getString(const String& name, String* output) const;
-    PassRefPtr<JSONObject> getObject(const String& name) const;
-    PassRefPtr<JSONArray> getArray(const String& name) const;
-    PassRefPtr<JSONValue> get(const String& name) const;
-
-    void remove(const String& name);
-
-    virtual void writeJSON(StringBuilder* output) const;
-
-    iterator begin() { return m_data.begin(); }
-    iterator end() { return m_data.end(); }
-    const_iterator begin() const { return m_data.begin(); }
-    const_iterator end() const { return m_data.end(); }
-
-    int size() const { return m_data.size(); }
-
-protected:
-    JSONObjectBase();
-
-private:
-    Dictionary m_data;
-    Vector<String> m_order;
-};
-
-class JSONObject : public JSONObjectBase {
-public:
-    static PassRefPtr<JSONObject> create()
-    {
-        return adoptRef(new JSONObject());
-    }
-
-    using JSONObjectBase::asObject;
-
-    using JSONObjectBase::setBoolean;
-    using JSONObjectBase::setNumber;
-    using JSONObjectBase::setString;
-    using JSONObjectBase::setValue;
-    using JSONObjectBase::setObject;
-    using JSONObjectBase::setArray;
-
-    using JSONObjectBase::find;
-    using JSONObjectBase::getBoolean;
-    using JSONObjectBase::getNumber;
-    using JSONObjectBase::getString;
-    using JSONObjectBase::getObject;
-    using JSONObjectBase::getArray;
-    using JSONObjectBase::get;
-
-    using JSONObjectBase::remove;
-
-    using JSONObjectBase::begin;
-    using JSONObjectBase::end;
-
-    using JSONObjectBase::size;
-};
-
-
-class JSONArrayBase : public JSONValue {
-public:
-    typedef Vector<RefPtr<JSONValue> >::iterator iterator;
-    typedef Vector<RefPtr<JSONValue> >::const_iterator const_iterator;
-
-    virtual PassRefPtr<JSONArray> asArray();
-
-    unsigned length() const { return m_data.size(); }
-
-protected:
-    ~JSONArrayBase();
-
-    virtual bool asArray(RefPtr<JSONArray>* output);
-
-    void pushBoolean(bool);
-    void pushInt(int);
-    void pushNumber(double);
-    void pushString(const String&);
-    void pushValue(PassRefPtr<JSONValue>);
-    void pushObject(PassRefPtr<JSONObject>);
-    void pushArray(PassRefPtr<JSONArray>);
-
-    PassRefPtr<JSONValue> get(size_t index);
-
-    virtual void writeJSON(StringBuilder* output) const;
-
-    iterator begin() { return m_data.begin(); }
-    iterator end() { return m_data.end(); }
-    const_iterator begin() const { return m_data.begin(); }
-    const_iterator end() const { return m_data.end(); }
-
-protected:
-    JSONArrayBase();
-
-private:
-    Vector<RefPtr<JSONValue> > m_data;
-};
-
-class JSONArray : public JSONArrayBase {
-public:
-    static PassRefPtr<JSONArray> create()
-    {
-        return adoptRef(new JSONArray());
-    }
-
-    using JSONArrayBase::asArray;
-
-    using JSONArrayBase::pushBoolean;
-    using JSONArrayBase::pushInt;
-    using JSONArrayBase::pushNumber;
-    using JSONArrayBase::pushString;
-    using JSONArrayBase::pushValue;
-    using JSONArrayBase::pushObject;
-    using JSONArrayBase::pushArray;
-
-    using JSONArrayBase::get;
-
-    using JSONArrayBase::begin;
-    using JSONArrayBase::end;
-};
-
-
-inline JSONObjectBase::iterator JSONObjectBase::find(const String& name)
-{
-    return m_data.find(name);
-}
-
-inline JSONObjectBase::const_iterator JSONObjectBase::find(const String& name) const
-{
-    return m_data.find(name);
-}
-
-inline void JSONObjectBase::setBoolean(const String& name, bool value)
-{
-    setValue(name, JSONBasicValue::create(value));
-}
-
-inline void JSONObjectBase::setNumber(const String& name, double value)
-{
-    setValue(name, JSONBasicValue::create(value));
-}
-
-inline void JSONObjectBase::setString(const String& name, const String& value)
-{
-    setValue(name, JSONString::create(value));
-}
-
-inline void JSONObjectBase::setValue(const String& name, PassRefPtr<JSONValue> value)
-{
-    ASSERT(value);
-    if (m_data.set(name, value).isNewEntry)
-        m_order.append(name);
-}
-
-inline void JSONObjectBase::setObject(const String& name, PassRefPtr<JSONObject> value)
-{
-    ASSERT(value);
-    if (m_data.set(name, value).isNewEntry)
-        m_order.append(name);
-}
-
-inline void JSONObjectBase::setArray(const String& name, PassRefPtr<JSONArray> value)
-{
-    ASSERT(value);
-    if (m_data.set(name, value).isNewEntry)
-        m_order.append(name);
-}
-
-inline void JSONArrayBase::pushBoolean(bool value)
-{
-    m_data.append(JSONBasicValue::create(value));
-}
-
-inline void JSONArrayBase::pushInt(int value)
-{
-    m_data.append(JSONBasicValue::create(value));
-}
-
-inline void JSONArrayBase::pushNumber(double value)
-{
-    m_data.append(JSONBasicValue::create(value));
-}
-
-inline void JSONArrayBase::pushString(const String& value)
-{
-    m_data.append(JSONString::create(value));
-}
-
-inline void JSONArrayBase::pushValue(PassRefPtr<JSONValue> value)
-{
-    ASSERT(value);
-    m_data.append(value);
-}
-
-inline void JSONArrayBase::pushObject(PassRefPtr<JSONObject> value)
-{
-    ASSERT(value);
-    m_data.append(value);
-}
-
-inline void JSONArrayBase::pushArray(PassRefPtr<JSONArray> value)
-{
-    ASSERT(value);
-    m_data.append(value);
-}
-
-} // namespace WebCore
-
-#endif // !defined(JSONValues_h)