llvm-project/lldb/source/Interpreter/PythonDataObjects.cpp

464 lines
10 KiB
C++

//===-- PythonDataObjects.cpp ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// In order to guarantee correct working with Python, Python.h *MUST* be
// the *FIRST* header file included here.
#ifdef LLDB_DISABLE_PYTHON
// Python is disabled in this build
#else
#include "lldb/lldb-python.h"
#include <stdio.h>
#include "lldb/Core/Stream.h"
#include "lldb/Host/File.h"
#include "lldb/Interpreter/PythonDataObjects.h"
#include "lldb/Interpreter/ScriptInterpreter.h"
using namespace lldb_private;
using namespace lldb;
//----------------------------------------------------------------------
// PythonObject
//----------------------------------------------------------------------
PythonObject::PythonObject (const lldb::ScriptInterpreterObjectSP &script_object_sp) :
m_py_obj (NULL)
{
if (script_object_sp)
Reset ((PyObject *)script_object_sp->GetObject());
}
void
PythonObject::Dump (Stream &strm) const
{
if (m_py_obj)
{
FILE *file = ::tmpfile();
if (file)
{
::PyObject_Print (m_py_obj, file, 0);
const long length = ftell (file);
if (length)
{
::rewind(file);
std::vector<char> file_contents (length,'\0');
const size_t length_read = ::fread (file_contents.data(), 1, file_contents.size(), file);
if (length_read > 0)
strm.Write (file_contents.data(), length_read);
}
::fclose (file);
}
}
else
strm.PutCString ("NULL");
}
PythonString
PythonObject::Repr ()
{
if (!m_py_obj)
return PythonString ();
PyObject *repr = PyObject_Repr(m_py_obj);
if (!repr)
return PythonString ();
return PythonString(repr);
}
PythonString
PythonObject::Str ()
{
if (!m_py_obj)
return PythonString ();
PyObject *str = PyObject_Str(m_py_obj);
if (!str)
return PythonString ();
return PythonString(str);
}
bool
PythonObject::IsNULLOrNone () const
{
return ((m_py_obj == nullptr) || (m_py_obj == Py_None));
}
//----------------------------------------------------------------------
// PythonString
//----------------------------------------------------------------------
PythonString::PythonString (PyObject *py_obj) :
PythonObject()
{
Reset(py_obj); // Use "Reset()" to ensure that py_obj is a string
}
PythonString::PythonString (const PythonObject &object) :
PythonObject()
{
Reset(object.get()); // Use "Reset()" to ensure that py_obj is a string
}
PythonString::PythonString (const lldb::ScriptInterpreterObjectSP &script_object_sp) :
PythonObject()
{
if (script_object_sp)
Reset((PyObject *)script_object_sp->GetObject()); // Use "Reset()" to ensure that py_obj is a string
}
PythonString::PythonString (const char* string) :
PythonObject(PyString_FromString(string))
{
}
PythonString::PythonString () :
PythonObject()
{
}
PythonString::~PythonString ()
{
}
bool
PythonString::Reset (PyObject *py_obj)
{
if (py_obj && PyString_Check(py_obj))
return PythonObject::Reset(py_obj);
PythonObject::Reset(NULL);
return py_obj == NULL;
}
const char*
PythonString::GetString() const
{
if (m_py_obj)
return PyString_AsString(m_py_obj);
return NULL;
}
size_t
PythonString::GetSize() const
{
if (m_py_obj)
return PyString_Size(m_py_obj);
return 0;
}
void
PythonString::SetString (const char* string)
{
PythonObject::Reset(PyString_FromString(string));
}
//----------------------------------------------------------------------
// PythonInteger
//----------------------------------------------------------------------
PythonInteger::PythonInteger (PyObject *py_obj) :
PythonObject()
{
Reset(py_obj); // Use "Reset()" to ensure that py_obj is a integer type
}
PythonInteger::PythonInteger (const PythonObject &object) :
PythonObject()
{
Reset(object.get()); // Use "Reset()" to ensure that py_obj is a integer type
}
PythonInteger::PythonInteger (const lldb::ScriptInterpreterObjectSP &script_object_sp) :
PythonObject()
{
if (script_object_sp)
Reset((PyObject *)script_object_sp->GetObject()); // Use "Reset()" to ensure that py_obj is a string
}
PythonInteger::PythonInteger (int64_t value) :
PythonObject()
{
SetInteger (value);
}
PythonInteger::~PythonInteger ()
{
}
bool
PythonInteger::Reset (PyObject *py_obj)
{
if (py_obj)
{
if (PyInt_Check (py_obj) || PyLong_Check(py_obj))
return PythonObject::Reset(py_obj);
}
PythonObject::Reset(NULL);
return py_obj == NULL;
}
int64_t
PythonInteger::GetInteger()
{
if (m_py_obj)
{
if (PyInt_Check(m_py_obj))
return PyInt_AsLong(m_py_obj);
else if (PyLong_Check(m_py_obj))
return PyLong_AsLongLong(m_py_obj);
}
return UINT64_MAX;
}
void
PythonInteger::SetInteger (int64_t value)
{
PythonObject::Reset(PyLong_FromLongLong(value));
}
//----------------------------------------------------------------------
// PythonList
//----------------------------------------------------------------------
PythonList::PythonList (bool create_empty) :
PythonObject(create_empty ? PyList_New(0) : NULL)
{
}
PythonList::PythonList (uint32_t count) :
PythonObject(PyList_New(count))
{
}
PythonList::PythonList (PyObject *py_obj) :
PythonObject()
{
Reset(py_obj); // Use "Reset()" to ensure that py_obj is a list
}
PythonList::PythonList (const PythonObject &object) :
PythonObject()
{
Reset(object.get()); // Use "Reset()" to ensure that py_obj is a list
}
PythonList::PythonList (const lldb::ScriptInterpreterObjectSP &script_object_sp) :
PythonObject()
{
if (script_object_sp)
Reset((PyObject *)script_object_sp->GetObject()); // Use "Reset()" to ensure that py_obj is a list
}
PythonList::~PythonList ()
{
}
bool
PythonList::Reset (PyObject *py_obj)
{
if (py_obj && PyList_Check(py_obj))
return PythonObject::Reset(py_obj);
PythonObject::Reset(NULL);
return py_obj == NULL;
}
uint32_t
PythonList::GetSize()
{
if (m_py_obj)
return PyList_GET_SIZE(m_py_obj);
return 0;
}
PythonObject
PythonList::GetItemAtIndex (uint32_t index)
{
if (m_py_obj)
return PythonObject(PyList_GetItem(m_py_obj, index));
return PythonObject();
}
void
PythonList::SetItemAtIndex (uint32_t index, const PythonObject & object)
{
if (m_py_obj && object)
PyList_SetItem(m_py_obj, index, object.get());
}
void
PythonList::AppendItem (const PythonObject &object)
{
if (m_py_obj && object)
PyList_Append(m_py_obj, object.get());
}
//----------------------------------------------------------------------
// PythonDictionary
//----------------------------------------------------------------------
PythonDictionary::PythonDictionary (bool create_empty) :
PythonObject(create_empty ? PyDict_New() : NULL)
{
}
PythonDictionary::PythonDictionary (PyObject *py_obj) :
PythonObject(py_obj)
{
Reset(py_obj); // Use "Reset()" to ensure that py_obj is a dictionary
}
PythonDictionary::PythonDictionary (const PythonObject &object) :
PythonObject()
{
Reset(object.get()); // Use "Reset()" to ensure that py_obj is a dictionary
}
PythonDictionary::PythonDictionary (const lldb::ScriptInterpreterObjectSP &script_object_sp) :
PythonObject ()
{
if (script_object_sp)
Reset((PyObject *)script_object_sp->GetObject()); // Use "Reset()" to ensure that py_obj is a dictionary
}
PythonDictionary::~PythonDictionary ()
{
}
bool
PythonDictionary::Reset (PyObject *py_obj)
{
if (py_obj && PyDict_Check(py_obj))
return PythonObject::Reset(py_obj);
PythonObject::Reset(NULL);
return py_obj == NULL;
}
uint32_t
PythonDictionary::GetSize()
{
if (m_py_obj)
return PyDict_Size(m_py_obj);
return 0;
}
PythonObject
PythonDictionary::GetItemForKey (const char *key) const
{
if (key && key[0])
{
PythonString python_key(key);
return GetItemForKey(python_key);
}
return PythonObject();
}
PythonObject
PythonDictionary::GetItemForKey (const PythonString &key) const
{
if (m_py_obj && key)
return PythonObject(PyDict_GetItem(m_py_obj, key.get()));
return PythonObject();
}
const char *
PythonDictionary::GetItemForKeyAsString (const PythonString &key, const char *fail_value) const
{
if (m_py_obj && key)
{
PyObject *py_obj = PyDict_GetItem(m_py_obj, key.get());
if (py_obj && PyString_Check(py_obj))
return PyString_AsString(py_obj);
}
return fail_value;
}
int64_t
PythonDictionary::GetItemForKeyAsInteger (const PythonString &key, int64_t fail_value) const
{
if (m_py_obj && key)
{
PyObject *py_obj = PyDict_GetItem(m_py_obj, key.get());
if (py_obj)
{
if (PyInt_Check(py_obj))
return PyInt_AsLong(py_obj);
if (PyLong_Check(py_obj))
return PyLong_AsLong(py_obj);
}
}
return fail_value;
}
PythonList
PythonDictionary::GetKeys () const
{
if (m_py_obj)
return PythonList(PyDict_Keys(m_py_obj));
return PythonList(true);
}
PythonString
PythonDictionary::GetKeyAtPosition (uint32_t pos) const
{
PyObject *key, *value;
Py_ssize_t pos_iter = 0;
if (m_py_obj)
{
while (PyDict_Next(m_py_obj, &pos_iter, &key, &value))
{
if (pos-- == 0)
return PythonString(key);
}
}
return PythonString();
}
PythonObject
PythonDictionary::GetValueAtPosition (uint32_t pos) const
{
PyObject *key, *value;
Py_ssize_t pos_iter = 0;
if (!m_py_obj)
return PythonObject();
while (PyDict_Next(m_py_obj, &pos_iter, &key, &value)) {
if (pos-- == 0)
return PythonObject(value);
}
return PythonObject();
}
void
PythonDictionary::SetItemForKey (const PythonString &key, PyObject *value)
{
if (m_py_obj && key && value)
PyDict_SetItem(m_py_obj, key.get(), value);
}
void
PythonDictionary::SetItemForKey (const PythonString &key, const PythonObject &value)
{
if (m_py_obj && key && value)
PyDict_SetItem(m_py_obj, key.get(), value.get());
}
#endif