diff -r 4f2f89ce4247 -r 303757a437d3 WebKitTools/DumpRenderTree/chromium/CppVariant.h --- a/WebKitTools/DumpRenderTree/chromium/CppVariant.h Fri Sep 17 09:02:29 2010 +0300 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,133 +0,0 @@ -/* - * Copyright (C) 2010 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. - */ - -/* - This file contains the declaration for CppVariant, a type used by C++ classes - that are to be bound to JavaScript objects. - - CppVariant exists primarily as an interface between C++ callers and the - corresponding NPVariant type. CppVariant also provides a number of - convenience constructors and accessors, so that the NPVariantType values - don't need to be exposed, and a destructor to free any memory allocated for - string values. -*/ - -#ifndef CppVariant_h -#define CppVariant_h - -#include "base/basictypes.h" -#include "public/WebBindings.h" -#include -#include - -class CppVariant : public NPVariant { -public: - CppVariant(); - ~CppVariant(); - void setNull(); - void set(bool); - void set(int32_t); - void set(double); - - // Note that setting a CppVariant to a string value involves copying the - // string data, which must be freed with a call to freeData() when the - // CppVariant is set to a different value or is no longer needed. Normally - // this is handled by the other set() methods and by the destructor. - void set(const char*); // Must be a null-terminated string. - void set(const std::string&); - void set(const NPString&); - void set(const NPVariant&); - - // Note that setting a CppVariant to an NPObject involves ref-counting - // the actual object. freeData() should only be called if the CppVariant - // is no longer needed. The other set() methods handle this internally. - // Also, the object's NPClass is expected to be a static object: neither - // the NP runtime nor CppVariant will ever free it. - void set(NPObject*_value); - - // These three methods all perform deep copies of any string data. This - // allows local CppVariants to be released by the destructor without - // corrupting their sources. In performance-critical code, or when strings - // are very long, avoid creating new CppVariants. - // In case of NPObject as the data, the copying involves ref-counting - // as opposed to deep-copying. The ref-counting ensures that sources don't - // get corrupted when the copies get destroyed. - void copyToNPVariant(NPVariant* result) const; - CppVariant& operator=(const CppVariant& original); - CppVariant(const CppVariant& original); - - // Calls NPN_ReleaseVariantValue, which frees any string data - // held by the object and sets its type to null. - // In case of NPObject, the NPN_ReleaseVariantValue decrements - // the ref-count (releases when ref-count becomes 0) - void freeData(); - - // Compares this CppVariant's type and value to another's. They must be - // identical in both type and value to be considered equal. For string and - // object types, a deep comparison is performed; that is, the contents of the - // strings, or the classes and refcounts of the objects, must be the same, - // but they need not be the same pointers. - bool isEqual(const CppVariant&) const; - - // The value of a CppVariant may be read directly from its NPVariant (but - // should only be set using one of the set() methods above). Although the - // type of a CppVariant is likewise public, it can be accessed through these - // functions rather than directly if a caller wishes to avoid dependence on - // the NPVariantType values. - bool isBool() const { return (type == NPVariantType_Bool); } - bool isInt32() const { return (type == NPVariantType_Int32); } - bool isDouble() const { return (type == NPVariantType_Double); } - bool isNumber() const { return (isInt32() || isDouble()); } - bool isString() const { return (type == NPVariantType_String); } - bool isVoid() const { return (type == NPVariantType_Void); } - bool isNull() const { return (type == NPVariantType_Null); } - bool isEmpty() const { return (isVoid() || isNull()); } - bool isObject() const { return (type == NPVariantType_Object); } - - // Converters. The CppVariant must be of a type convertible to these values. - // For example, toInt32() works only if isNumber() is true. - std::string toString() const; - int32_t toInt32() const; - double toDouble() const; - bool toBoolean() const; - // Returns a vector of strings for the specified argument. This is useful - // for converting a JavaScript array of strings into a vector of strings. - Vector toStringVector() const; - - // Invoke method of the given name on an object with the supplied arguments. - // The first argument should be the object on which the method is to be - // invoked. Returns whether the method was successfully invoked. If the - // method was invoked successfully, any return value is stored in the - // CppVariant specified by result. - bool invoke(const std::string&, const CppVariant* arguments, - uint32_t argumentCount, CppVariant& result) const; -}; - -#endif // CppVariant_h