1 files changed, 0 insertions, 169 deletions
diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.cpp
deleted file mode 100644
index c9d834ce686..00000000000
--- a/lldb/source/Plugins/ScriptInterpreter/Python/PythonExceptionState.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-//===-- PythonExceptionState.cpp --------------------------------*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLDB_DISABLE_PYTHON
-
-// LLDB Python header must be included first
-#include "lldb-python.h"
-
-#include "PythonExceptionState.h"
-
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace lldb_private;
-
-PythonExceptionState::PythonExceptionState(bool restore_on_exit)
-    : m_restore_on_exit(restore_on_exit) {
-  Acquire(restore_on_exit);
-}
-
-PythonExceptionState::~PythonExceptionState() {
-  if (m_restore_on_exit)
-    Restore();
-}
-
-void PythonExceptionState::Acquire(bool restore_on_exit) {
-  // If a state is already acquired, the user needs to decide whether they want
-  // to discard or restore it.  Don't allow the potential silent loss of a
-  // valid state.
-  assert(!IsError());
-
-  if (!HasErrorOccurred())
-    return;
-
-  PyObject *py_type = nullptr;
-  PyObject *py_value = nullptr;
-  PyObject *py_traceback = nullptr;
-  PyErr_Fetch(&py_type, &py_value, &py_traceback);
-  // PyErr_Fetch clears the error flag.
-  assert(!HasErrorOccurred());
-
-  // Ownership of the objects returned by `PyErr_Fetch` is transferred to us.
-  m_type.Reset(PyRefType::Owned, py_type);
-  m_value.Reset(PyRefType::Owned, py_value);
-  m_traceback.Reset(PyRefType::Owned, py_traceback);
-  m_restore_on_exit = restore_on_exit;
-}
-
-void PythonExceptionState::Restore() {
-  if (m_type.IsValid()) {
-    // The documentation for PyErr_Restore says "Do not pass a null type and
-    // non-null value or traceback.  So only restore if type was non-null to
-    // begin with.  In this case we're passing ownership back to Python so
-    // release them all.
-    PyErr_Restore(m_type.release(), m_value.release(), m_traceback.release());
-  }
-
-  // After we restore, we should not hold onto the exception state.  Demand
-  // that it be re-acquired.
-  Discard();
-}
-
-void PythonExceptionState::Discard() {
-  m_type.Reset();
-  m_value.Reset();
-  m_traceback.Reset();
-}
-
-void PythonExceptionState::Reset() {
-  if (m_restore_on_exit)
-    Restore();
-  else
-    Discard();
-}
-
-bool PythonExceptionState::HasErrorOccurred() { return PyErr_Occurred(); }
-
-bool PythonExceptionState::IsError() const {
-  return m_type.IsValid() || m_value.IsValid() || m_traceback.IsValid();
-}
-
-PythonObject PythonExceptionState::GetType() const { return m_type; }
-
-PythonObject PythonExceptionState::GetValue() const { return m_value; }
-
-PythonObject PythonExceptionState::GetTraceback() const { return m_traceback; }
-
-std::string PythonExceptionState::Format() const {
-  // Don't allow this function to modify the error state.
-  PythonExceptionState state(true);
-
-  std::string backtrace = ReadBacktrace();
-  if (!IsError())
-    return std::string();
-
-  // It's possible that ReadPythonBacktrace generated another exception. If
-  // this happens we have to clear the exception, because otherwise
-  // PyObject_Str() will assert below.  That's why we needed to do the save /
-  // restore at the beginning of this function.
-  PythonExceptionState bt_error_state(false);
-
-  std::string error_string;
-  llvm::raw_string_ostream error_stream(error_string);
-  error_stream << m_value.Str().GetString() << "\n";
-
-  if (!bt_error_state.IsError()) {
-    // If we were able to read the backtrace, just append it.
-    error_stream << backtrace << "\n";
-  } else {
-    // Otherwise, append some information about why we were unable to obtain
-    // the backtrace.
-    PythonString bt_error = bt_error_state.GetValue().Str();
-    error_stream << "An error occurred while retrieving the backtrace: "
-                 << bt_error.GetString() << "\n";
-  }
-  return error_stream.str();
-}
-
-std::string PythonExceptionState::ReadBacktrace() const {
-  std::string retval("backtrace unavailable");
-
-  auto traceback_module = PythonModule::ImportModule("traceback");
-#if PY_MAJOR_VERSION >= 3
-  auto stringIO_module = PythonModule::ImportModule("io");
-#else
-  auto stringIO_module = PythonModule::ImportModule("StringIO");
-#endif
-  if (!m_traceback.IsAllocated())
-    return retval;
-
-  if (!traceback_module.IsAllocated() || !stringIO_module.IsAllocated())
-    return retval;
-
-  auto stringIO_builder =
-      stringIO_module.ResolveName<PythonCallable>("StringIO");
-  if (!stringIO_builder.IsAllocated())
-    return retval;
-
-  auto stringIO_buffer = stringIO_builder();
-  if (!stringIO_buffer.IsAllocated())
-    return retval;
-
-  auto printTB = traceback_module.ResolveName<PythonCallable>("print_tb");
-  if (!printTB.IsAllocated())
-    return retval;
-
-  auto printTB_result =
-      printTB(m_traceback.get(), Py_None, stringIO_buffer.get());
-  auto stringIO_getvalue =
-      stringIO_buffer.ResolveName<PythonCallable>("getvalue");
-  if (!stringIO_getvalue.IsAllocated())
-    return retval;
-
-  auto printTB_string = stringIO_getvalue().AsType<PythonString>();
-  if (!printTB_string.IsAllocated())
-    return retval;
-
-  llvm::StringRef string_data(printTB_string.GetString());
-  retval.assign(string_data.data(), string_data.size());
-
-  return retval;
-}
-
-#endif