bool operator==(XmlRpcValue const& other) const;
bool operator!=(XmlRpcValue const& other) const;
operator bool&() { assertTypeOrInvalid(TypeBoolean); return _value.asBool; }
operator int&() { assertTypeOrInvalid(TypeInt); return _value.asInt; }
operator double&() { assertTypeOrInvalid(TypeDouble); return _value.asDouble; }
operator std::string&() { assertTypeOrInvalid(TypeString); return *_value.asString; }
operator BinaryData&() { assertTypeOrInvalid(TypeBase64); return *_value.asBinary; }
operator struct tm&() { assertTypeOrInvalid(TypeDateTime); return *_value.asTime; }
XmlRpcValue const& operator[](int i) const { assertArray(i+1); return _value.asArray->at(i); }
XmlRpcValue& operator[](int i) { assertArray(i+1); return _value.asArray->at(i); }
XmlRpcValue& operator[](std::string const& k) { assertStruct(); return (*_value.asStruct)[k]; }
XmlRpcValue& operator[](const char* k) { assertStruct(); std::string s(k); return (*_value.asStruct)[s];
}
// Accessors
//! Return true if the value has been set to something.
bool valid() const { return _type != TypeInvalid; }
//! Return the type of the value stored. \see Type.
Type const &getType() const { return _type; }
//! Return the size for string, base64, array, and struct values.
int size() const;
//! Specify the size for array values. Array values will grow beyond this size if needed.
void setSize(int size) { assertArray(size); }
//! Check for the existence of a struct member by name.
bool hasMember(const std::string& name) const;
// Type tag and values
Type _type;
// At some point I will split off Arrays and Structs into
// separate ref-counted objects for more efficient copying.
union {
bool asBool;
int asInt;
double asDouble;
struct tm* asTime;
std::string* asString;
BinaryData* asBinary;
ValueArray* asArray;
ValueStruct* asStruct;
} _value;
};
xpdf中Object的核心代码如下
enum ObjType {
// simple objects
objBool, // boolean
objInt, // integer
objReal, // real
objString, // string
objName, // name
objNull, // null
// complex objects
objArray, // array
objDict, // dictionary
objStream, // stream
objRef, // indirect reference
// special objects
objCmd, // command name
objError, // error return from Lexer
objEOF, // end of file return from Lexer
objNone // uninitialized object
};
class Object {
public:
// Default constructor.
Object():
type(objNone) {}
// Initialize an object.
Object *initBool(GBool boolnA)
{ initObj(objBool); booln = boolnA; return this; }
Object *initInt(int intgA)
{ initObj(objInt); intg = intgA; return this; }
Object *initReal(double realA)
{ initObj(objReal); real = realA; return this; }
Object *initString(GString *stringA)
{ initObj(objString); string = stringA; return this; }
Object *initName(char *nameA)
{ initObj(objName); name = copyString(nameA); return this; }
Object *initNull()
{ initObj(objNull); return this; }
Object *initArray(XRef *xref);
Object *initDict(XRef *xref);
Object *initDict(Dict *dictA);
Object *initStream(Stream *streamA);
Object *initRef(int numA, int genA)
{ initObj(objRef); ref.num = numA; ref.gen = genA; return this; }
Object *initCmd(char *cmdA)
{ initObj(objCmd); cmd = copyString(cmdA); return this; }
Object *initError()
{ initObj(objError); return this; }
Object *initEOF()
{ initObj(objEOF); return this; }
// Copy an object.
Object *copy(Object *obj);
责任编辑：小草
