Changed tabs to four spaces
This commit is contained in:
Robert Osfield
@@ -14,394 +14,394 @@
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namespace osgIntrospection
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{
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// forward declarations
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class MethodInfo;
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class PropertyInfo;
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class ParameterInfo;
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class ReaderWriter;
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// typedefs for member info lists
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typedef std::vector<const MethodInfo *> MethodInfoList;
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typedef std::vector<const PropertyInfo *> PropertyInfoList;
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typedef std::vector<const ParameterInfo *> ParameterInfoList;
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// typedef for enum label map
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typedef std::map<int, std::string> EnumLabelMap;
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/// Base class for instance creators. An instance creator is
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/// a lightweight object that creates a Value containing an
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/// instance of some type. Every non-abstract Type object has
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/// an instance creator that creates instances of that type.
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/// This is an abstract interface, it must be derived to
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/// provide the actual implementation of createInstance().
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struct InstanceCreatorBase
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{
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virtual Value createInstance() const = 0;
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};
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/// This is an instance creator to be used with types that ought to
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/// be created on the heap, for example all classes derived from
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/// osg::Referenced.
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template<typename T>
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struct InstanceCreator: public InstanceCreatorBase
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{
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Value createInstance() const
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{
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return new T();
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}
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};
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/// This is an instance creator to be used with types that can be
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/// created on the stack (for example: int, std::string, or other
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/// possibly small user-defined structs or classes).
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template<typename T>
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struct ValueInstanceCreator: public InstanceCreatorBase
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{
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Value createInstance() const
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{
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return T();
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}
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};
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/// Objects of class Type are used to maintain information about
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/// reflected types. They also provide a number of services, like
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/// instance creation and dynamic calling of methods.
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/// All details about the data type being described are available
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/// at runtime, provided that the type was defined (and not just
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/// declared) through a Reflector class.
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/// It is not possible to modify a Type object once it has been
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/// created, unless you are a class derived from Reflector (which
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/// has firm friendship with this class).
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class OSGINTROSPECTION_EXPORT Type: public CustomAttributeProvider
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{
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public:
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/// Destructor. Note that this class is not meant to be subclassed.
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~Type();
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/// Returns a reference to the std::type_info instance associated
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/// to this Type.
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inline const std::type_info &getStdTypeInfo() const;
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/// Returns true if this Type is defined, false if it's just
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/// declared. See class Reflector if you want to create a new Type.
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inline bool isDefined() const;
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/// Returns the name of the reflected type.
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inline const std::string &getName() const;
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/// Returns the namespace of the reflected type.
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inline const std::string &getNamespace() const;
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/// Returns the qualified name of the reflected type. The qualified
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/// name is formed by the namespace, if present, plus other modifiers
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/// like 'const' and/or '*' (pointer) where applicable.
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inline std::string getQualifiedName() const;
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/// Returns the number of base types.
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/// This number is zero if the type is not derived from any other
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/// type.
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inline int getNumBaseTypes() const;
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/// Returns the i-th base type.
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inline const Type &getBaseType(int i) const;
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/// Returns whether the reflected type is abstract.
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inline bool isAbstract() const;
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/// Returns whether the reflected type is "atomic", that is
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/// it can be rendered to and decoded from a stream directly.
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inline bool isAtomic() const;
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/// Returns whether the reflected type is an enumeration.
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inline bool isEnum() const;
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/// Returns whether the reflected type is the type void.
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inline bool isVoid() const;
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/// Returns true if the reflected type is a pointer, false otherwise.
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inline bool isPointer() const;
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/// Returns true if the reflected type is a pointer AND it is const,
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/// false otherwise.
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inline bool isConstPointer() const;
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/// Returns true if the reflected type is a pointer AND it is not
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/// const, false otherwise.
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inline bool isNonConstPointer() const;
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/// Returns the pointed type. If the reflected type is not a pointer,
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/// the object returned is typeof(void).
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inline const Type &getPointedType() const;
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/// Returns the list of properties defined for this type. The list
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/// does not include properties inherited from base types.
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inline const PropertyInfoList &getProperties() const;
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/// Fills a list of properties that are either defined in this Type
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/// or in inherited types.
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void getAllProperties(PropertyInfoList &props) const;
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/// Returns the list of methods defined for this type. The list
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/// does not include methods inherited from base types.
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inline const MethodInfoList &getMethods() const;
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/// Fills a list of methods that are either defined in this Type
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/// or in inherited types.
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void getAllMethods(MethodInfoList &methods) const;
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/// Returns the map of enumeration labels. If the type is not an
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/// enumeration, an empty map is returned.
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inline const EnumLabelMap &getEnumLabels() const;
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/// Searches for a method that can be called with the given list of
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/// arguments without raising type conversion errors. If more than
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/// one method are suitable for calling, the best match is returned.
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const MethodInfo *getCompatibleMethod(const std::string &name, const ValueList &values, bool inherit) const;
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/// Searches for a method whose parameters match exactly the given
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/// list of parameter descriptions.
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const MethodInfo *getMethod(const std::string &name, const ParameterInfoList ¶ms, bool inherit) const;
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/// Searches for a property given its name, type and list of indices.
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/// Only exact matches are returned.
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const PropertyInfo *getProperty(const std::string &name, const Type &ptype, const ParameterInfoList &indices, bool inherit) const;
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/// Searches for a suitable method and invokes it with the given list
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/// of arguments (const instance).
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Value invokeMethod(const std::string &name, const Value &instance, ValueList &args, bool inherit) const;
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/// Searches for a suitable method and invokes it with the given list
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/// of arguments.
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Value invokeMethod(const std::string &name, Value &instance, ValueList &args, bool inherit) const;
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/// Returns whether the reflected type is derived from another type.
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bool isSubclassOf(const Type &type) const;
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// forward declarations
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class MethodInfo;
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class PropertyInfo;
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class ParameterInfo;
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class ReaderWriter;
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// typedefs for member info lists
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typedef std::vector<const MethodInfo *> MethodInfoList;
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typedef std::vector<const PropertyInfo *> PropertyInfoList;
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typedef std::vector<const ParameterInfo *> ParameterInfoList;
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// typedef for enum label map
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typedef std::map<int, std::string> EnumLabelMap;
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/// Base class for instance creators. An instance creator is
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/// a lightweight object that creates a Value containing an
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/// instance of some type. Every non-abstract Type object has
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/// an instance creator that creates instances of that type.
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/// This is an abstract interface, it must be derived to
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/// provide the actual implementation of createInstance().
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struct InstanceCreatorBase
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{
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virtual Value createInstance() const = 0;
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};
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/// This is an instance creator to be used with types that ought to
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/// be created on the heap, for example all classes derived from
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/// osg::Referenced.
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template<typename T>
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struct InstanceCreator: public InstanceCreatorBase
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{
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Value createInstance() const
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{
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return new T();
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}
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};
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/// This is an instance creator to be used with types that can be
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/// created on the stack (for example: int, std::string, or other
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/// possibly small user-defined structs or classes).
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template<typename T>
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struct ValueInstanceCreator: public InstanceCreatorBase
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{
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Value createInstance() const
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{
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return T();
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}
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};
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/// Objects of class Type are used to maintain information about
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/// reflected types. They also provide a number of services, like
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/// instance creation and dynamic calling of methods.
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/// All details about the data type being described are available
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/// at runtime, provided that the type was defined (and not just
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/// declared) through a Reflector class.
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/// It is not possible to modify a Type object once it has been
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/// created, unless you are a class derived from Reflector (which
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/// has firm friendship with this class).
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class OSGINTROSPECTION_EXPORT Type: public CustomAttributeProvider
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{
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public:
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/// Destructor. Note that this class is not meant to be subclassed.
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~Type();
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/// Returns a reference to the std::type_info instance associated
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/// to this Type.
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inline const std::type_info &getStdTypeInfo() const;
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/// Returns true if this Type is defined, false if it's just
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/// declared. See class Reflector if you want to create a new Type.
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inline bool isDefined() const;
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/// Returns the name of the reflected type.
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inline const std::string &getName() const;
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/// Returns the namespace of the reflected type.
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inline const std::string &getNamespace() const;
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/// Returns the qualified name of the reflected type. The qualified
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/// name is formed by the namespace, if present, plus other modifiers
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/// like 'const' and/or '*' (pointer) where applicable.
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inline std::string getQualifiedName() const;
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/// Returns the number of base types.
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/// This number is zero if the type is not derived from any other
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/// type.
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inline int getNumBaseTypes() const;
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/// Returns the i-th base type.
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inline const Type &getBaseType(int i) const;
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/// Returns whether the reflected type is abstract.
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inline bool isAbstract() const;
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/// Returns whether the reflected type is "atomic", that is
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/// it can be rendered to and decoded from a stream directly.
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inline bool isAtomic() const;
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/// Returns whether the reflected type is an enumeration.
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inline bool isEnum() const;
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/// Returns whether the reflected type is the type void.
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inline bool isVoid() const;
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/// Returns true if the reflected type is a pointer, false otherwise.
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inline bool isPointer() const;
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/// Returns true if the reflected type is a pointer AND it is const,
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/// false otherwise.
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inline bool isConstPointer() const;
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/// Returns true if the reflected type is a pointer AND it is not
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/// const, false otherwise.
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inline bool isNonConstPointer() const;
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/// Returns the pointed type. If the reflected type is not a pointer,
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/// the object returned is typeof(void).
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inline const Type &getPointedType() const;
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/// Returns the list of properties defined for this type. The list
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/// does not include properties inherited from base types.
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inline const PropertyInfoList &getProperties() const;
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/// Fills a list of properties that are either defined in this Type
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/// or in inherited types.
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void getAllProperties(PropertyInfoList &props) const;
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/// Returns the list of methods defined for this type. The list
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/// does not include methods inherited from base types.
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inline const MethodInfoList &getMethods() const;
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/// Fills a list of methods that are either defined in this Type
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/// or in inherited types.
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void getAllMethods(MethodInfoList &methods) const;
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/// Returns the map of enumeration labels. If the type is not an
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/// enumeration, an empty map is returned.
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inline const EnumLabelMap &getEnumLabels() const;
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/// Searches for a method that can be called with the given list of
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/// arguments without raising type conversion errors. If more than
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/// one method are suitable for calling, the best match is returned.
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const MethodInfo *getCompatibleMethod(const std::string &name, const ValueList &values, bool inherit) const;
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/// Searches for a method whose parameters match exactly the given
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/// list of parameter descriptions.
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const MethodInfo *getMethod(const std::string &name, const ParameterInfoList ¶ms, bool inherit) const;
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/// Searches for a property given its name, type and list of indices.
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/// Only exact matches are returned.
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const PropertyInfo *getProperty(const std::string &name, const Type &ptype, const ParameterInfoList &indices, bool inherit) const;
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/// Searches for a suitable method and invokes it with the given list
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/// of arguments (const instance).
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Value invokeMethod(const std::string &name, const Value &instance, ValueList &args, bool inherit) const;
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/// Searches for a suitable method and invokes it with the given list
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/// of arguments.
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Value invokeMethod(const std::string &name, Value &instance, ValueList &args, bool inherit) const;
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/// Returns whether the reflected type is derived from another type.
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bool isSubclassOf(const Type &type) const;
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/// Returns the instance of the reader/writer object assigned to
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/// this type, if any. Otherwise it returns the null pointer.
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inline const ReaderWriter *getReaderWriter() const;
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/// Creates an instance of the reflected type. The returned Value
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/// can be casted to T*, where T is the reflected type. If the type
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/// is abstract, an exception is thrown.
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inline Value createInstance() const;
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protected:
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Type(const std::type_info &ti)
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: ti_(ti),
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is_const_(false),
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pointed_type_(0),
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is_defined_(false),
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icb_(0),
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rw_(0)
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{
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}
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// throws an exception if the type is not defined.
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void check_defined() const;
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virtual void getInheritedProviders(CustomAttributeProviderList &providers) const;
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void set_instance_creator(const InstanceCreatorBase *icb)
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{
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delete icb_;
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icb_ = icb;
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}
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private:
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template<typename C> friend class Reflector;
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friend class Reflection;
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Type(const Type ©): CustomAttributeProvider(copy), ti_(copy.ti_) {}
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const std::type_info &ti_;
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std::string name_;
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std::string namespace_;
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typedef std::vector<const Type *> TypeList;
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TypeList base_;
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bool is_const_;
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const Type *pointed_type_;
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PropertyInfoList props_;
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MethodInfoList methods_;
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EnumLabelMap labels_;
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bool is_defined_;
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const InstanceCreatorBase *icb_;
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const ReaderWriter *rw_;
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};
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// OPERATORS
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/// Equality test operator. Returns true if the two instances of Type
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/// describe the same type, false otherwise.
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inline bool operator==(const Type &t1, const Type &t2)
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{
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return (t1.getStdTypeInfo() == t2.getStdTypeInfo()) != 0;
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}
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/// Inequality test operator. Returns false if the two instances of Type
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/// describe the same type, true otherwise.
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inline bool operator!=(const Type &t1, const Type &t2)
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{
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return (t1.getStdTypeInfo() != t2.getStdTypeInfo()) != 0;
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}
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/// Less than operator. Returns true if the first type comes before the
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/// second one. The actual ordering is implementation-dependent.
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inline bool operator<(const Type &t1, const Type &t2)
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{
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return (t1.getStdTypeInfo().before(t2.getStdTypeInfo())) != 0;
|
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}
|
||||
|
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/// Greater than or equal to operator. Returns !operator<().
|
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inline bool operator>=(const Type &t1, const Type &t2)
|
||||
{
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return !operator<(t1, t2);
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}
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|
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// INLINE METHODS
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||||
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||||
inline void Type::check_defined() const
|
||||
{
|
||||
if (!is_defined_)
|
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throw TypeNotDefinedException(ti_);
|
||||
}
|
||||
|
||||
inline const std::type_info &Type::getStdTypeInfo() const
|
||||
{
|
||||
return ti_;
|
||||
}
|
||||
|
||||
inline const std::string &Type::getName() const
|
||||
{
|
||||
check_defined();
|
||||
return name_;
|
||||
}
|
||||
|
||||
inline const std::string &Type::getNamespace() const
|
||||
{
|
||||
check_defined();
|
||||
return namespace_;
|
||||
}
|
||||
|
||||
inline std::string Type::getQualifiedName() const
|
||||
{
|
||||
check_defined();
|
||||
std::string qname;
|
||||
if (is_const_) qname = "const ";
|
||||
if (!namespace_.empty())
|
||||
{
|
||||
qname.append(namespace_);
|
||||
qname.append("::");
|
||||
}
|
||||
qname.append(name_);
|
||||
if (pointed_type_)
|
||||
qname.append(" *");
|
||||
return qname;
|
||||
}
|
||||
|
||||
inline int Type::getNumBaseTypes() const
|
||||
{
|
||||
check_defined();
|
||||
return static_cast<int>(base_.size());
|
||||
}
|
||||
|
||||
inline bool Type::isConstPointer() const
|
||||
{
|
||||
check_defined();
|
||||
return is_const_ && pointed_type_;
|
||||
}
|
||||
|
||||
inline bool Type::isNonConstPointer() const
|
||||
{
|
||||
check_defined();
|
||||
return !is_const_ && pointed_type_;
|
||||
}
|
||||
|
||||
inline bool Type::isAbstract() const
|
||||
{
|
||||
check_defined();
|
||||
return icb_ == 0;
|
||||
}
|
||||
|
||||
inline bool Type::isAtomic() const
|
||||
{
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||||
check_defined();
|
||||
return rw_ != 0;
|
||||
}
|
||||
|
||||
inline const PropertyInfoList &Type::getProperties() const
|
||||
{
|
||||
check_defined();
|
||||
return props_;
|
||||
}
|
||||
|
||||
inline const MethodInfoList &Type::getMethods() const
|
||||
{
|
||||
check_defined();
|
||||
return methods_;
|
||||
}
|
||||
|
||||
inline bool Type::isPointer() const
|
||||
{
|
||||
check_defined();
|
||||
return pointed_type_ != 0;
|
||||
}
|
||||
|
||||
inline bool Type::isVoid() const
|
||||
{
|
||||
return (ti_ == typeid(void)) != 0;
|
||||
}
|
||||
|
||||
inline const Type &Type::getPointedType() const
|
||||
{
|
||||
check_defined();
|
||||
if (pointed_type_)
|
||||
return *pointed_type_;
|
||||
return Reflection::type_void();
|
||||
}
|
||||
|
||||
inline bool Type::isEnum() const
|
||||
{
|
||||
check_defined();
|
||||
return !labels_.empty();
|
||||
}
|
||||
|
||||
inline const EnumLabelMap &Type::getEnumLabels() const
|
||||
{
|
||||
check_defined();
|
||||
return labels_;
|
||||
}
|
||||
|
||||
inline bool Type::isDefined() const
|
||||
{
|
||||
return is_defined_;
|
||||
}
|
||||
|
||||
inline const ReaderWriter *Type::getReaderWriter() const
|
||||
{
|
||||
check_defined();
|
||||
return rw_;
|
||||
}
|
||||
|
||||
inline const Type &Type::getBaseType(int i) const
|
||||
{
|
||||
check_defined();
|
||||
return *base_.at(i);
|
||||
}
|
||||
|
||||
inline Value Type::createInstance() const
|
||||
{
|
||||
check_defined();
|
||||
if (!icb_)
|
||||
throw TypeIsAbstractException(ti_);
|
||||
return icb_->createInstance();
|
||||
}
|
||||
/// Returns the instance of the reader/writer object assigned to
|
||||
/// this type, if any. Otherwise it returns the null pointer.
|
||||
inline const ReaderWriter *getReaderWriter() const;
|
||||
|
||||
/// Creates an instance of the reflected type. The returned Value
|
||||
/// can be casted to T*, where T is the reflected type. If the type
|
||||
/// is abstract, an exception is thrown.
|
||||
inline Value createInstance() const;
|
||||
|
||||
protected:
|
||||
Type(const std::type_info &ti)
|
||||
: ti_(ti),
|
||||
is_const_(false),
|
||||
pointed_type_(0),
|
||||
is_defined_(false),
|
||||
icb_(0),
|
||||
rw_(0)
|
||||
{
|
||||
}
|
||||
|
||||
// throws an exception if the type is not defined.
|
||||
void check_defined() const;
|
||||
|
||||
virtual void getInheritedProviders(CustomAttributeProviderList &providers) const;
|
||||
|
||||
void set_instance_creator(const InstanceCreatorBase *icb)
|
||||
{
|
||||
delete icb_;
|
||||
icb_ = icb;
|
||||
}
|
||||
|
||||
private:
|
||||
template<typename C> friend class Reflector;
|
||||
friend class Reflection;
|
||||
|
||||
Type(const Type ©): CustomAttributeProvider(copy), ti_(copy.ti_) {}
|
||||
|
||||
const std::type_info &ti_;
|
||||
|
||||
std::string name_;
|
||||
std::string namespace_;
|
||||
|
||||
typedef std::vector<const Type *> TypeList;
|
||||
TypeList base_;
|
||||
|
||||
bool is_const_;
|
||||
const Type *pointed_type_;
|
||||
|
||||
PropertyInfoList props_;
|
||||
MethodInfoList methods_;
|
||||
|
||||
EnumLabelMap labels_;
|
||||
bool is_defined_;
|
||||
|
||||
const InstanceCreatorBase *icb_;
|
||||
const ReaderWriter *rw_;
|
||||
};
|
||||
|
||||
// OPERATORS
|
||||
|
||||
/// Equality test operator. Returns true if the two instances of Type
|
||||
/// describe the same type, false otherwise.
|
||||
inline bool operator==(const Type &t1, const Type &t2)
|
||||
{
|
||||
return (t1.getStdTypeInfo() == t2.getStdTypeInfo()) != 0;
|
||||
}
|
||||
|
||||
/// Inequality test operator. Returns false if the two instances of Type
|
||||
/// describe the same type, true otherwise.
|
||||
inline bool operator!=(const Type &t1, const Type &t2)
|
||||
{
|
||||
return (t1.getStdTypeInfo() != t2.getStdTypeInfo()) != 0;
|
||||
}
|
||||
|
||||
/// Less than operator. Returns true if the first type comes before the
|
||||
/// second one. The actual ordering is implementation-dependent.
|
||||
inline bool operator<(const Type &t1, const Type &t2)
|
||||
{
|
||||
return (t1.getStdTypeInfo().before(t2.getStdTypeInfo())) != 0;
|
||||
}
|
||||
|
||||
/// Greater than or equal to operator. Returns !operator<().
|
||||
inline bool operator>=(const Type &t1, const Type &t2)
|
||||
{
|
||||
return !operator<(t1, t2);
|
||||
}
|
||||
|
||||
// INLINE METHODS
|
||||
|
||||
inline void Type::check_defined() const
|
||||
{
|
||||
if (!is_defined_)
|
||||
throw TypeNotDefinedException(ti_);
|
||||
}
|
||||
|
||||
inline const std::type_info &Type::getStdTypeInfo() const
|
||||
{
|
||||
return ti_;
|
||||
}
|
||||
|
||||
inline const std::string &Type::getName() const
|
||||
{
|
||||
check_defined();
|
||||
return name_;
|
||||
}
|
||||
|
||||
inline const std::string &Type::getNamespace() const
|
||||
{
|
||||
check_defined();
|
||||
return namespace_;
|
||||
}
|
||||
|
||||
inline std::string Type::getQualifiedName() const
|
||||
{
|
||||
check_defined();
|
||||
std::string qname;
|
||||
if (is_const_) qname = "const ";
|
||||
if (!namespace_.empty())
|
||||
{
|
||||
qname.append(namespace_);
|
||||
qname.append("::");
|
||||
}
|
||||
qname.append(name_);
|
||||
if (pointed_type_)
|
||||
qname.append(" *");
|
||||
return qname;
|
||||
}
|
||||
|
||||
inline int Type::getNumBaseTypes() const
|
||||
{
|
||||
check_defined();
|
||||
return static_cast<int>(base_.size());
|
||||
}
|
||||
|
||||
inline bool Type::isConstPointer() const
|
||||
{
|
||||
check_defined();
|
||||
return is_const_ && pointed_type_;
|
||||
}
|
||||
|
||||
inline bool Type::isNonConstPointer() const
|
||||
{
|
||||
check_defined();
|
||||
return !is_const_ && pointed_type_;
|
||||
}
|
||||
|
||||
inline bool Type::isAbstract() const
|
||||
{
|
||||
check_defined();
|
||||
return icb_ == 0;
|
||||
}
|
||||
|
||||
inline bool Type::isAtomic() const
|
||||
{
|
||||
check_defined();
|
||||
return rw_ != 0;
|
||||
}
|
||||
|
||||
inline const PropertyInfoList &Type::getProperties() const
|
||||
{
|
||||
check_defined();
|
||||
return props_;
|
||||
}
|
||||
|
||||
inline const MethodInfoList &Type::getMethods() const
|
||||
{
|
||||
check_defined();
|
||||
return methods_;
|
||||
}
|
||||
|
||||
inline bool Type::isPointer() const
|
||||
{
|
||||
check_defined();
|
||||
return pointed_type_ != 0;
|
||||
}
|
||||
|
||||
inline bool Type::isVoid() const
|
||||
{
|
||||
return (ti_ == typeid(void)) != 0;
|
||||
}
|
||||
|
||||
inline const Type &Type::getPointedType() const
|
||||
{
|
||||
check_defined();
|
||||
if (pointed_type_)
|
||||
return *pointed_type_;
|
||||
return Reflection::type_void();
|
||||
}
|
||||
|
||||
inline bool Type::isEnum() const
|
||||
{
|
||||
check_defined();
|
||||
return !labels_.empty();
|
||||
}
|
||||
|
||||
inline const EnumLabelMap &Type::getEnumLabels() const
|
||||
{
|
||||
check_defined();
|
||||
return labels_;
|
||||
}
|
||||
|
||||
inline bool Type::isDefined() const
|
||||
{
|
||||
return is_defined_;
|
||||
}
|
||||
|
||||
inline const ReaderWriter *Type::getReaderWriter() const
|
||||
{
|
||||
check_defined();
|
||||
return rw_;
|
||||
}
|
||||
|
||||
inline const Type &Type::getBaseType(int i) const
|
||||
{
|
||||
check_defined();
|
||||
return *base_.at(i);
|
||||
}
|
||||
|
||||
inline Value Type::createInstance() const
|
||||
{
|
||||
check_defined();
|
||||
if (!icb_)
|
||||
throw TypeIsAbstractException(ti_);
|
||||
return icb_->createInstance();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user