diff options
Diffstat (limited to 'source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h')
| -rw-r--r-- | source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h | 721 | 
1 files changed, 311 insertions, 410 deletions
diff --git a/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h b/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h index 78245a98d0b8..b84996c928da 100644 --- a/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h +++ b/source/Plugins/ScriptInterpreter/Python/PythonDataObjects.h @@ -12,16 +12,19 @@  #ifndef LLDB_DISABLE_PYTHON +// LLDB Python header must be included first +#include "lldb-python.h" +  // C Includes  // C++ Includes  // Other libraries and framework includes  // Project includes -#include "lldb/lldb-defines.h"  #include "lldb/Core/ConstString.h" -#include "lldb/Core/StructuredData.h"  #include "lldb/Core/Flags.h" +#include "lldb/Core/StructuredData.h"  #include "lldb/Host/File.h"  #include "lldb/Interpreter/OptionValue.h" +#include "lldb/lldb-defines.h"  #include "llvm/ADT/ArrayRef.h" @@ -33,536 +36,434 @@ class PythonList;  class PythonDictionary;  class PythonInteger; -class StructuredPythonObject : public StructuredData::Generic -{ +class StructuredPythonObject : public StructuredData::Generic {  public: -    StructuredPythonObject() -        : StructuredData::Generic() -    { -    } - -    StructuredPythonObject(void *obj) -        : StructuredData::Generic(obj) -    { -        Py_XINCREF(GetValue()); -    } - -    ~StructuredPythonObject() override -    { -        if (Py_IsInitialized()) -            Py_XDECREF(GetValue()); -        SetValue(nullptr); -    } - -    bool -    IsValid() const override -    { -        return GetValue() && GetValue() != Py_None; -    } - -    void Dump(Stream &s) const override; +  StructuredPythonObject() : StructuredData::Generic() {} + +  StructuredPythonObject(void *obj) : StructuredData::Generic(obj) { +    Py_XINCREF(GetValue()); +  } + +  ~StructuredPythonObject() override { +    if (Py_IsInitialized()) +      Py_XDECREF(GetValue()); +    SetValue(nullptr); +  } + +  bool IsValid() const override { return GetValue() && GetValue() != Py_None; } + +  void Dump(Stream &s, bool pretty_print = true) const override;  private: -    DISALLOW_COPY_AND_ASSIGN(StructuredPythonObject); +  DISALLOW_COPY_AND_ASSIGN(StructuredPythonObject);  }; -enum class PyObjectType -{ -    Unknown, -    None, -    Integer, -    Dictionary, -    List, -    String, -    Bytes, -    ByteArray, -    Module, -    Callable, -    Tuple, -    File +enum class PyObjectType { +  Unknown, +  None, +  Integer, +  Dictionary, +  List, +  String, +  Bytes, +  ByteArray, +  Module, +  Callable, +  Tuple, +  File  }; -enum class PyRefType -{ -    Borrowed, // We are not given ownership of the incoming PyObject. -              // We cannot safely hold it without calling Py_INCREF. -    Owned     // We have ownership of the incoming PyObject.  We should -              // not call Py_INCREF. +enum class PyRefType { +  Borrowed, // We are not given ownership of the incoming PyObject. +            // We cannot safely hold it without calling Py_INCREF. +  Owned     // We have ownership of the incoming PyObject.  We should +            // not call Py_INCREF.  }; -enum class PyInitialValue -{ -    Invalid, -    Empty -}; +enum class PyInitialValue { Invalid, Empty }; -class PythonObject -{ +class PythonObject {  public: -    PythonObject() -        : m_py_obj(nullptr) -    { -    } - -    PythonObject(PyRefType type, PyObject *py_obj) -        : m_py_obj(nullptr) -    { -        Reset(type, py_obj); -    } - -    PythonObject(const PythonObject &rhs) -        : m_py_obj(nullptr) -    { -        Reset(rhs); -    } - -    virtual ~PythonObject() -    { -        Reset(); -    } - -    void -    Reset() -    { -        // Avoid calling the virtual method since it's not necessary -        // to actually validate the type of the PyObject if we're -        // just setting to null. -        if (Py_IsInitialized()) -            Py_XDECREF(m_py_obj); -        m_py_obj = nullptr; -    } - -    void -    Reset(const PythonObject &rhs) -    { -        // Avoid calling the virtual method if it's not necessary -        // to actually validate the type of the PyObject. -        if (!rhs.IsValid()) -            Reset(); -        else -            Reset(PyRefType::Borrowed, rhs.m_py_obj); -    } - -    // PythonObject is implicitly convertible to PyObject *, which will call the -    // wrong overload.  We want to explicitly disallow this, since a PyObject -    // *always* owns its reference.  Therefore the overload which takes a -    // PyRefType doesn't make sense, and the copy constructor should be used. -    void -    Reset(PyRefType type, const PythonObject &ref) = delete; - -    virtual void -    Reset(PyRefType type, PyObject *py_obj) -    { -        if (py_obj == m_py_obj) -            return; - -        if (Py_IsInitialized()) -            Py_XDECREF(m_py_obj); - -        m_py_obj = py_obj; - -        // If this is a borrowed reference, we need to convert it to -        // an owned reference by incrementing it.  If it is an owned -        // reference (for example the caller allocated it with PyDict_New() -        // then we must *not* increment it. -        if (Py_IsInitialized() && type == PyRefType::Borrowed) -            Py_XINCREF(m_py_obj); -    } -         -    void -    Dump () const -    { -        if (m_py_obj) -            _PyObject_Dump (m_py_obj); -        else -            puts ("NULL"); -    } -         -    void -    Dump (Stream &strm) const; - -    PyObject* -    get() const -    { -        return m_py_obj; -    } - -    PyObject* -    release() -    { -        PyObject *result = m_py_obj; -        m_py_obj = nullptr; -        return result; -    } - -    PythonObject & -    operator=(const PythonObject &other) -    { -        Reset(PyRefType::Borrowed, other.get()); -        return *this; -    } - -    PyObjectType -    GetObjectType() const; - -    PythonString -    Repr() const; - -    PythonString -    Str() const; - -    static PythonObject -    ResolveNameWithDictionary(llvm::StringRef name, const PythonDictionary &dict); - -    template<typename T> -    static T -    ResolveNameWithDictionary(llvm::StringRef name, const PythonDictionary &dict) -    { -        return ResolveNameWithDictionary(name, dict).AsType<T>(); -    } - -    PythonObject -    ResolveName(llvm::StringRef name) const; - -    template<typename T> -    T -    ResolveName(llvm::StringRef name) const -    { -        return ResolveName(name).AsType<T>(); -    } - -    bool -    HasAttribute(llvm::StringRef attribute) const; - -    PythonObject -    GetAttributeValue(llvm::StringRef attribute) const; - -    bool -    IsValid() const; - -    bool -    IsAllocated() const; - -    bool -    IsNone() const; - -    template<typename T> -    T AsType() const -    { -        if (!T::Check(m_py_obj)) -            return T(); -        return T(PyRefType::Borrowed, m_py_obj); -    } - -    StructuredData::ObjectSP -    CreateStructuredObject() const; +  PythonObject() : m_py_obj(nullptr) {} + +  PythonObject(PyRefType type, PyObject *py_obj) : m_py_obj(nullptr) { +    Reset(type, py_obj); +  } + +  PythonObject(const PythonObject &rhs) : m_py_obj(nullptr) { Reset(rhs); } + +  virtual ~PythonObject() { Reset(); } + +  void Reset() { +    // Avoid calling the virtual method since it's not necessary +    // to actually validate the type of the PyObject if we're +    // just setting to null. +    if (Py_IsInitialized()) +      Py_XDECREF(m_py_obj); +    m_py_obj = nullptr; +  } + +  void Reset(const PythonObject &rhs) { +    // Avoid calling the virtual method if it's not necessary +    // to actually validate the type of the PyObject. +    if (!rhs.IsValid()) +      Reset(); +    else +      Reset(PyRefType::Borrowed, rhs.m_py_obj); +  } + +  // PythonObject is implicitly convertible to PyObject *, which will call the +  // wrong overload.  We want to explicitly disallow this, since a PyObject +  // *always* owns its reference.  Therefore the overload which takes a +  // PyRefType doesn't make sense, and the copy constructor should be used. +  void Reset(PyRefType type, const PythonObject &ref) = delete; + +  virtual void Reset(PyRefType type, PyObject *py_obj) { +    if (py_obj == m_py_obj) +      return; + +    if (Py_IsInitialized()) +      Py_XDECREF(m_py_obj); + +    m_py_obj = py_obj; + +    // If this is a borrowed reference, we need to convert it to +    // an owned reference by incrementing it.  If it is an owned +    // reference (for example the caller allocated it with PyDict_New() +    // then we must *not* increment it. +    if (Py_IsInitialized() && type == PyRefType::Borrowed) +      Py_XINCREF(m_py_obj); +  } + +  void Dump() const { +    if (m_py_obj) +      _PyObject_Dump(m_py_obj); +    else +      puts("NULL"); +  } + +  void Dump(Stream &strm) const; + +  PyObject *get() const { return m_py_obj; } + +  PyObject *release() { +    PyObject *result = m_py_obj; +    m_py_obj = nullptr; +    return result; +  } + +  PythonObject &operator=(const PythonObject &other) { +    Reset(PyRefType::Borrowed, other.get()); +    return *this; +  } + +  PyObjectType GetObjectType() const; + +  PythonString Repr() const; + +  PythonString Str() const; + +  static PythonObject ResolveNameWithDictionary(llvm::StringRef name, +                                                const PythonDictionary &dict); + +  template <typename T> +  static T ResolveNameWithDictionary(llvm::StringRef name, +                                     const PythonDictionary &dict) { +    return ResolveNameWithDictionary(name, dict).AsType<T>(); +  } + +  PythonObject ResolveName(llvm::StringRef name) const; + +  template <typename T> T ResolveName(llvm::StringRef name) const { +    return ResolveName(name).AsType<T>(); +  } + +  bool HasAttribute(llvm::StringRef attribute) const; + +  PythonObject GetAttributeValue(llvm::StringRef attribute) const; + +  bool IsValid() const; + +  bool IsAllocated() const; + +  bool IsNone() const; + +  template <typename T> T AsType() const { +    if (!T::Check(m_py_obj)) +      return T(); +    return T(PyRefType::Borrowed, m_py_obj); +  } + +  StructuredData::ObjectSP CreateStructuredObject() const;  protected: -    PyObject* m_py_obj; +  PyObject *m_py_obj;  }; -class PythonBytes : public PythonObject -{ +class PythonBytes : public PythonObject {  public: -    PythonBytes(); -    explicit PythonBytes(llvm::ArrayRef<uint8_t> bytes); -    PythonBytes(const uint8_t *bytes, size_t length); -    PythonBytes(PyRefType type, PyObject *o); -    PythonBytes(const PythonBytes &object); +  PythonBytes(); +  explicit PythonBytes(llvm::ArrayRef<uint8_t> bytes); +  PythonBytes(const uint8_t *bytes, size_t length); +  PythonBytes(PyRefType type, PyObject *o); +  PythonBytes(const PythonBytes &object); -    ~PythonBytes() override; +  ~PythonBytes() override; -    static bool -    Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void -    Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    llvm::ArrayRef<uint8_t> -    GetBytes() const; +  llvm::ArrayRef<uint8_t> GetBytes() const; -    size_t -    GetSize() const; +  size_t GetSize() const; -    void -    SetBytes(llvm::ArrayRef<uint8_t> stringbytes); +  void SetBytes(llvm::ArrayRef<uint8_t> stringbytes); -    StructuredData::StringSP -    CreateStructuredString() const; +  StructuredData::StringSP CreateStructuredString() const;  }; -class PythonByteArray : public PythonObject -{ +class PythonByteArray : public PythonObject {  public: -    PythonByteArray(); -    explicit PythonByteArray(llvm::ArrayRef<uint8_t> bytes); -    PythonByteArray(const uint8_t *bytes, size_t length); -    PythonByteArray(PyRefType type, PyObject *o); -    PythonByteArray(const PythonBytes &object); +  PythonByteArray(); +  explicit PythonByteArray(llvm::ArrayRef<uint8_t> bytes); +  PythonByteArray(const uint8_t *bytes, size_t length); +  PythonByteArray(PyRefType type, PyObject *o); +  PythonByteArray(const PythonBytes &object); -    ~PythonByteArray() override; +  ~PythonByteArray() override; -    static bool -    Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void -    Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    llvm::ArrayRef<uint8_t> -    GetBytes() const; +  llvm::ArrayRef<uint8_t> GetBytes() const; -    size_t -    GetSize() const; +  size_t GetSize() const; -    void -    SetBytes(llvm::ArrayRef<uint8_t> stringbytes); +  void SetBytes(llvm::ArrayRef<uint8_t> stringbytes); -    StructuredData::StringSP -    CreateStructuredString() const; +  StructuredData::StringSP CreateStructuredString() const;  }; -class PythonString : public PythonObject -{ +class PythonString : public PythonObject {  public: -    PythonString(); -    explicit PythonString(llvm::StringRef string); -    explicit PythonString(const char *string); -    PythonString(PyRefType type, PyObject *o); -    PythonString(const PythonString &object); +  PythonString(); +  explicit PythonString(llvm::StringRef string); +  explicit PythonString(const char *string); +  PythonString(PyRefType type, PyObject *o); +  PythonString(const PythonString &object); -    ~PythonString() override; +  ~PythonString() override; -    static bool Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    llvm::StringRef -    GetString() const; +  llvm::StringRef GetString() const; -    size_t -    GetSize() const; +  size_t GetSize() const; -    void SetString(llvm::StringRef string); +  void SetString(llvm::StringRef string); -    StructuredData::StringSP CreateStructuredString() const; +  StructuredData::StringSP CreateStructuredString() const;  }; -class PythonInteger : public PythonObject -{ +class PythonInteger : public PythonObject {  public: -    PythonInteger(); -    explicit PythonInteger(int64_t value); -    PythonInteger(PyRefType type, PyObject *o); -    PythonInteger(const PythonInteger &object); +  PythonInteger(); +  explicit PythonInteger(int64_t value); +  PythonInteger(PyRefType type, PyObject *o); +  PythonInteger(const PythonInteger &object); -    ~PythonInteger() override; +  ~PythonInteger() override; -    static bool Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    int64_t GetInteger() const; +  int64_t GetInteger() const; -    void -    SetInteger (int64_t value); +  void SetInteger(int64_t value); -    StructuredData::IntegerSP CreateStructuredInteger() const; +  StructuredData::IntegerSP CreateStructuredInteger() const;  }; -class PythonList : public PythonObject -{ +class PythonList : public PythonObject {  public: -    PythonList() {} -    explicit PythonList(PyInitialValue value); -    explicit PythonList(int list_size); -    PythonList(PyRefType type, PyObject *o); -    PythonList(const PythonList &list); +  PythonList() {} +  explicit PythonList(PyInitialValue value); +  explicit PythonList(int list_size); +  PythonList(PyRefType type, PyObject *o); +  PythonList(const PythonList &list); -    ~PythonList() override; +  ~PythonList() override; -    static bool Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    uint32_t GetSize() const; +  uint32_t GetSize() const; -    PythonObject GetItemAtIndex(uint32_t index) const; +  PythonObject GetItemAtIndex(uint32_t index) const; -    void SetItemAtIndex(uint32_t index, const PythonObject &object); +  void SetItemAtIndex(uint32_t index, const PythonObject &object); -    void AppendItem(const PythonObject &object); +  void AppendItem(const PythonObject &object); -    StructuredData::ArraySP CreateStructuredArray() const; +  StructuredData::ArraySP CreateStructuredArray() const;  }; -class PythonTuple : public PythonObject -{ +class PythonTuple : public PythonObject {  public: -    PythonTuple() {} -    explicit PythonTuple(PyInitialValue value); -    explicit PythonTuple(int tuple_size); -    PythonTuple(PyRefType type, PyObject *o); -    PythonTuple(const PythonTuple &tuple); -    PythonTuple(std::initializer_list<PythonObject> objects); -    PythonTuple(std::initializer_list<PyObject*> objects); +  PythonTuple() {} +  explicit PythonTuple(PyInitialValue value); +  explicit PythonTuple(int tuple_size); +  PythonTuple(PyRefType type, PyObject *o); +  PythonTuple(const PythonTuple &tuple); +  PythonTuple(std::initializer_list<PythonObject> objects); +  PythonTuple(std::initializer_list<PyObject *> objects); -    ~PythonTuple() override; +  ~PythonTuple() override; -    static bool Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    uint32_t GetSize() const; +  uint32_t GetSize() const; -    PythonObject GetItemAtIndex(uint32_t index) const; +  PythonObject GetItemAtIndex(uint32_t index) const; -    void SetItemAtIndex(uint32_t index, const PythonObject &object); +  void SetItemAtIndex(uint32_t index, const PythonObject &object); -    StructuredData::ArraySP CreateStructuredArray() const; +  StructuredData::ArraySP CreateStructuredArray() const;  }; -class PythonDictionary : public PythonObject -{ +class PythonDictionary : public PythonObject {  public: -    PythonDictionary() {} -    explicit PythonDictionary(PyInitialValue value); -    PythonDictionary(PyRefType type, PyObject *o); -    PythonDictionary(const PythonDictionary &dict); +  PythonDictionary() {} +  explicit PythonDictionary(PyInitialValue value); +  PythonDictionary(PyRefType type, PyObject *o); +  PythonDictionary(const PythonDictionary &dict); -    ~PythonDictionary() override; +  ~PythonDictionary() override; -    static bool Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    uint32_t GetSize() const; +  uint32_t GetSize() const; -    PythonList GetKeys() const; +  PythonList GetKeys() const; -    PythonObject GetItemForKey(const PythonObject &key) const; -    void SetItemForKey(const PythonObject &key, const PythonObject &value); +  PythonObject GetItemForKey(const PythonObject &key) const; +  void SetItemForKey(const PythonObject &key, const PythonObject &value); -    StructuredData::DictionarySP CreateStructuredDictionary() const; +  StructuredData::DictionarySP CreateStructuredDictionary() const;  }; -class PythonModule : public PythonObject -{ -  public: -    PythonModule(); -    PythonModule(PyRefType type, PyObject *o); -    PythonModule(const PythonModule &dict); +class PythonModule : public PythonObject { +public: +  PythonModule(); +  PythonModule(PyRefType type, PyObject *o); +  PythonModule(const PythonModule &dict); -    ~PythonModule() override; +  ~PythonModule() override; -    static bool Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    static PythonModule -    BuiltinsModule(); +  static PythonModule BuiltinsModule(); -    static PythonModule -    MainModule(); +  static PythonModule MainModule(); -    static PythonModule -    AddModule(llvm::StringRef module); +  static PythonModule AddModule(llvm::StringRef module); -    static PythonModule -    ImportModule(llvm::StringRef module); +  static PythonModule ImportModule(llvm::StringRef module); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    PythonDictionary GetDictionary() const; +  PythonDictionary GetDictionary() const;  }; -class PythonCallable : public PythonObject -{ +class PythonCallable : public PythonObject {  public: -    struct ArgInfo { -        size_t count; -        bool is_bound_method : 1; -        bool has_varargs : 1; -        bool has_kwargs : 1; -    }; +  struct ArgInfo { +    size_t count; +    bool is_bound_method : 1; +    bool has_varargs : 1; +    bool has_kwargs : 1; +  }; -    PythonCallable(); -    PythonCallable(PyRefType type, PyObject *o); -    PythonCallable(const PythonCallable &dict); +  PythonCallable(); +  PythonCallable(PyRefType type, PyObject *o); +  PythonCallable(const PythonCallable &dict); -    ~PythonCallable() override; +  ~PythonCallable() override; -    static bool -    Check(PyObject *py_obj); +  static bool Check(PyObject *py_obj); -    // Bring in the no-argument base class version -    using PythonObject::Reset; +  // Bring in the no-argument base class version +  using PythonObject::Reset; -    void -    Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(PyRefType type, PyObject *py_obj) override; -    ArgInfo -    GetNumArguments() const; +  ArgInfo GetNumArguments() const; -    PythonObject -    operator ()(); +  PythonObject operator()(); -    PythonObject -    operator ()(std::initializer_list<PyObject*> args); +  PythonObject operator()(std::initializer_list<PyObject *> args); -    PythonObject -    operator ()(std::initializer_list<PythonObject> args); +  PythonObject operator()(std::initializer_list<PythonObject> args); -    template<typename Arg, typename... Args> -    PythonObject -    operator ()(const Arg &arg, Args... args) -    { -        return operator()({ arg, args... }); -    } +  template <typename Arg, typename... Args> +  PythonObject operator()(const Arg &arg, Args... args) { +    return operator()({arg, args...}); +  }  }; +class PythonFile : public PythonObject { +public: +  PythonFile(); +  PythonFile(File &file, const char *mode); +  PythonFile(const char *path, const char *mode); +  PythonFile(PyRefType type, PyObject *o); -class PythonFile : public PythonObject -{ -  public: -    PythonFile(); -    PythonFile(File &file, const char *mode); -    PythonFile(const char *path, const char *mode); -    PythonFile(PyRefType type, PyObject *o); +  ~PythonFile() override; -    ~PythonFile() override; +  static bool Check(PyObject *py_obj); -    static bool Check(PyObject *py_obj); +  using PythonObject::Reset; -    using PythonObject::Reset; +  void Reset(PyRefType type, PyObject *py_obj) override; +  void Reset(File &file, const char *mode); -    void Reset(PyRefType type, PyObject *py_obj) override; -    void Reset(File &file, const char *mode); +  static uint32_t GetOptionsFromMode(llvm::StringRef mode); -    static uint32_t GetOptionsFromMode(llvm::StringRef mode); -     -    bool GetUnderlyingFile(File &file) const; +  bool GetUnderlyingFile(File &file) const;  };  } // namespace lldb_private  | 
