Author: Med Ismail Bennani
Date: 2024-01-29T03:17:33-08:00
New Revision: 888501bc631c4f6d373b4081ff6c504a1ce4a682

URL: 
https://github.com/llvm/llvm-project/commit/888501bc631c4f6d373b4081ff6c504a1ce4a682
DIFF: 
https://github.com/llvm/llvm-project/commit/888501bc631c4f6d373b4081ff6c504a1ce4a682.diff

LOG: [lldb] Make use of Scripted{Python,}Interface for ScriptedThreadPlan 
(#70392)

This patch makes ScriptedThreadPlan conforming to the ScriptedInterface
& ScriptedPythonInterface facilities by introducing 2
ScriptedThreadPlanInterface & ScriptedThreadPlanPythonInterface classes.

This allows us to get rid of every ScriptedThreadPlan-specific SWIG
method and re-use the same affordances as other scripting offordances,
like Scripted{Process,Thread,Platform} & OperatingSystem.

To do so, this adds new transformer methods for `ThreadPlan`, `Stream` &
`Event`, to allow the bijection between C++ objects and their python
counterparts.

Signed-off-by: Med Ismail Bennani <ism...@bennani.ma>

Added: 
    lldb/include/lldb/Interpreter/Interfaces/ScriptedThreadPlanInterface.h
    
lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
    
lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h

Modified: 
    lldb/bindings/python/python-swigsafecast.swig
    lldb/bindings/python/python-wrapper.swig
    lldb/include/lldb/API/SBEvent.h
    lldb/include/lldb/API/SBStream.h
    lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h
    lldb/include/lldb/Interpreter/ScriptInterpreter.h
    lldb/include/lldb/Target/ThreadPlanPython.h
    lldb/include/lldb/lldb-forward.h
    lldb/source/Interpreter/ScriptInterpreter.cpp
    lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt
    
lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPlatformPythonInterface.cpp
    
lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
    
lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.cpp
    
lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.h
    
lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPythonInterface.cpp
    lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
    lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
    lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
    lldb/source/Target/ThreadPlanPython.cpp
    lldb/test/API/functionalities/step_scripted/Steps.py
    lldb/test/API/functionalities/thread_plan/wrap_step_over.py
    lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp

Removed: 
    


################################################################################
diff  --git a/lldb/bindings/python/python-swigsafecast.swig 
b/lldb/bindings/python/python-swigsafecast.swig
index d5ea5148727134d..34f8c6f0ff8d350 100644
--- a/lldb/bindings/python/python-swigsafecast.swig
+++ b/lldb/bindings/python/python-swigsafecast.swig
@@ -37,10 +37,6 @@ PythonObject SWIGBridge::ToSWIGWrapper(const Status& status) 
{
   return ToSWIGHelper(new lldb::SBError(status), SWIGTYPE_p_lldb__SBError);
 }
 
-PythonObject SWIGBridge::ToSWIGWrapper(std::unique_ptr<lldb::SBStream> 
stream_sb) {
-  return ToSWIGHelper(stream_sb.release(), SWIGTYPE_p_lldb__SBStream);
-}
-
 PythonObject SWIGBridge::ToSWIGWrapper(std::unique_ptr<lldb::SBStructuredData> 
data_sb) {
   return ToSWIGHelper(data_sb.release(), SWIGTYPE_p_lldb__SBStructuredData);
 }
@@ -115,9 +111,16 @@ SWIGBridge::ToSWIGWrapper(CommandReturnObject &cmd_retobj) 
{
       SWIGTYPE_p_lldb__SBCommandReturnObject);
 }
 
-ScopedPythonObject<lldb::SBEvent> SWIGBridge::ToSWIGWrapper(Event *event) {
-  return ScopedPythonObject<lldb::SBEvent>(new lldb::SBEvent(event),
-                                           SWIGTYPE_p_lldb__SBEvent);
+PythonObject SWIGBridge::ToSWIGWrapper(const Stream *s) {
+  return ToSWIGHelper(new lldb::SBStream(), SWIGTYPE_p_lldb__SBStream);
+}
+
+PythonObject SWIGBridge::ToSWIGWrapper(std::shared_ptr<lldb::SBStream> 
stream_sb) {
+  return ToSWIGHelper(stream_sb.get(), SWIGTYPE_p_lldb__SBStream);
+}
+
+PythonObject SWIGBridge::ToSWIGWrapper(Event *event) {
+  return ToSWIGHelper(new lldb::SBEvent(event), SWIGTYPE_p_lldb__SBEvent);
 }
 
 PythonObject SWIGBridge::ToSWIGWrapper(

diff  --git a/lldb/bindings/python/python-wrapper.swig 
b/lldb/bindings/python/python-wrapper.swig
index 17bc7b1f2198709..05643e6c8f2b70e 100644
--- a/lldb/bindings/python/python-wrapper.swig
+++ b/lldb/bindings/python/python-wrapper.swig
@@ -229,133 +229,6 @@ PythonObject 
lldb_private::python::SWIGBridge::LLDBSwigPythonCreateCommandObject
   return pfunc(SWIGBridge::ToSWIGWrapper(std::move(debugger_sp)), dict);
 }
 
-PythonObject 
lldb_private::python::SWIGBridge::LLDBSwigPythonCreateScriptedThreadPlan(
-    const char *python_class_name, const char *session_dictionary_name,
-    const lldb_private::StructuredDataImpl &args_impl,
-    std::string &error_string, const lldb::ThreadPlanSP &thread_plan_sp) {
-  if (python_class_name == NULL || python_class_name[0] == '\0' ||
-      !session_dictionary_name)
-    return PythonObject();
-
-  PyErr_Cleaner py_err_cleaner(true);
-
-  auto dict = PythonModule::MainModule().ResolveName<PythonDictionary>(
-      session_dictionary_name);
-  auto pfunc = PythonObject::ResolveNameWithDictionary<PythonCallable>(
-      python_class_name, dict);
-
-  if (!pfunc.IsAllocated()) {
-    error_string.append("could not find script class: ");
-    error_string.append(python_class_name);
-    return PythonObject();
-  }
-
-  PythonObject tp_arg = SWIGBridge::ToSWIGWrapper(thread_plan_sp);
-
-  llvm::Expected<PythonCallable::ArgInfo> arg_info = pfunc.GetArgInfo();
-  if (!arg_info) {
-    llvm::handleAllErrors(
-        arg_info.takeError(),
-        [&](PythonException &E) { error_string.append(E.ReadBacktrace()); },
-        [&](const llvm::ErrorInfoBase &E) {
-          error_string.append(E.message());
-        });
-    return PythonObject();
-  }
-
-  PythonObject result = {};
-  auto args_sb = std::unique_ptr<lldb::SBStructuredData>(new 
lldb::SBStructuredData(args_impl));
-  if (arg_info.get().max_positional_args == 2) {
-    if (args_sb->IsValid()) {
-      error_string.assign(
-          "args passed, but __init__ does not take an args dictionary");
-      return PythonObject();
-    }
-    result = pfunc(tp_arg, dict);
-  } else if (arg_info.get().max_positional_args >= 3) {
-    result = pfunc(tp_arg, SWIGBridge::ToSWIGWrapper(std::move(args_sb)), 
dict);
-  } else {
-    error_string.assign("wrong number of arguments in __init__, should be 2 or 
"
-                        "3 (not including self)");
-    return PythonObject();
-  }
-
-  // FIXME: At this point we should check that the class we found supports all
-  // the methods that we need.
-
-  return result;
-}
-
-bool lldb_private::python::SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-    void *implementor, const char *method_name, lldb_private::Event *event,
-    bool &got_error) {
-  got_error = false;
-
-  PyErr_Cleaner py_err_cleaner(false);
-  PythonObject self(PyRefType::Borrowed, static_cast<PyObject *>(implementor));
-  auto pfunc = self.ResolveName<PythonCallable>(method_name);
-
-  if (!pfunc.IsAllocated())
-    return false;
-
-  PythonObject result;
-  if (event != nullptr) {
-    ScopedPythonObject<SBEvent> event_arg = SWIGBridge::ToSWIGWrapper(event);
-    result = pfunc(event_arg.obj());
-  } else
-    result = pfunc();
-
-  if (PyErr_Occurred()) {
-    got_error = true;
-    printf("Return value was neither false nor true for call to %s.\n",
-           method_name);
-    PyErr_Print();
-    return false;
-  }
-
-  if (result.get() == Py_True)
-    return true;
-  else if (result.get() == Py_False)
-    return false;
-
-  // Somebody returned the wrong thing...
-  got_error = true;
-  printf("Wrong return value type for call to %s.\n", method_name);
-  return false;
-}
-
-bool lldb_private::python::SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-    void *implementor, const char *method_name, lldb_private::Stream *stream,
-    bool &got_error) {
-  got_error = false;
-
-  PyErr_Cleaner py_err_cleaner(false);
-  PythonObject self(PyRefType::Borrowed, static_cast<PyObject *>(implementor));
-  auto pfunc = self.ResolveName<PythonCallable>(method_name);
-
-  if (!pfunc.IsAllocated()) 
-    return false;
-
-  auto *sb_stream = new lldb::SBStream();
-  PythonObject sb_stream_arg =
-      SWIGBridge::ToSWIGWrapper(std::unique_ptr<lldb::SBStream>(sb_stream));
-
-  PythonObject result;
-  result = pfunc(sb_stream_arg);
-
-  if (PyErr_Occurred()) {
-    printf("Error occured for call to %s.\n",
-           method_name);
-    PyErr_Print();
-    got_error = true;
-    return false;
-  }
-  if (stream)
-    stream->PutCString(sb_stream->GetData());
-  return true;
-
-}
-
 PythonObject 
lldb_private::python::SWIGBridge::LLDBSwigPythonCreateScriptedBreakpointResolver(
     const char *python_class_name, const char *session_dictionary_name,
     const StructuredDataImpl &args_impl,
@@ -500,9 +373,8 @@ bool 
lldb_private::python::SWIGBridge::LLDBSwigPythonStopHookCallHandleStop(
   if (!pfunc.IsAllocated())
     return true;
 
-  auto *sb_stream = new lldb::SBStream();
-  PythonObject sb_stream_arg =
-      SWIGBridge::ToSWIGWrapper(std::unique_ptr<lldb::SBStream>(sb_stream));
+  std::shared_ptr<lldb::SBStream> sb_stream = 
std::make_shared<lldb::SBStream>();
+  PythonObject sb_stream_arg = SWIGBridge::ToSWIGWrapper(sb_stream);
   PythonObject result =
       pfunc(SWIGBridge::ToSWIGWrapper(std::move(exc_ctx_sp)), sb_stream_arg);
 
@@ -517,6 +389,7 @@ bool 
lldb_private::python::SWIGBridge::LLDBSwigPythonStopHookCallHandleStop(
   // makes an internally help StreamString which I can't interpose, so I
   // have to copy it over here.
   stream->PutCString(sb_stream->GetData());
+  sb_stream_arg.release();
 
   if (result.get() == Py_False)
     return false;
@@ -753,6 +626,30 @@ void 
*lldb_private::python::LLDBSWIGPython_CastPyObjectToSBError(PyObject * data
   return sb_ptr;
 }
 
+void *lldb_private::python::LLDBSWIGPython_CastPyObjectToSBEvent(PyObject * 
data) {
+  lldb::SBEvent *sb_ptr = nullptr;
+
+  int valid_cast =
+      SWIG_ConvertPtr(data, (void **)&sb_ptr, SWIGTYPE_p_lldb__SBEvent, 0);
+
+  if (valid_cast == -1)
+    return NULL;
+
+  return sb_ptr;
+}
+
+void *lldb_private::python::LLDBSWIGPython_CastPyObjectToSBStream(PyObject * 
data) {
+  lldb::SBStream *sb_ptr = nullptr;
+
+  int valid_cast =
+      SWIG_ConvertPtr(data, (void **)&sb_ptr, SWIGTYPE_p_lldb__SBStream, 0);
+
+  if (valid_cast == -1)
+    return NULL;
+
+  return sb_ptr;
+}
+
 void *lldb_private::python::LLDBSWIGPython_CastPyObjectToSBValue(PyObject * 
data) {
   lldb::SBValue *sb_ptr = NULL;
 

diff  --git a/lldb/include/lldb/API/SBEvent.h b/lldb/include/lldb/API/SBEvent.h
index cc116766e85f4ad..85b401ca8cc100f 100644
--- a/lldb/include/lldb/API/SBEvent.h
+++ b/lldb/include/lldb/API/SBEvent.h
@@ -15,6 +15,7 @@
 #include <vector>
 
 namespace lldb_private {
+class ScriptInterpreter;
 namespace python {
 class SWIGBridge;
 }
@@ -73,11 +74,12 @@ class LLDB_API SBEvent {
   friend class SBThread;
   friend class SBWatchpoint;
 
+  friend class lldb_private::ScriptInterpreter;
   friend class lldb_private::python::SWIGBridge;
 
   SBEvent(lldb::EventSP &event_sp);
 
-  SBEvent(lldb_private::Event *event_sp);
+  SBEvent(lldb_private::Event *event);
 
   lldb::EventSP &GetSP() const;
 

diff  --git a/lldb/include/lldb/API/SBStream.h 
b/lldb/include/lldb/API/SBStream.h
index 0e33f05b69916f2..2db379fe12f0923 100644
--- a/lldb/include/lldb/API/SBStream.h
+++ b/lldb/include/lldb/API/SBStream.h
@@ -13,6 +13,10 @@
 
 #include "lldb/API/SBDefines.h"
 
+namespace lldb_private {
+class ScriptInterpreter;
+} // namespace lldb_private
+
 namespace lldb {
 
 class LLDB_API SBStream {
@@ -101,6 +105,8 @@ class LLDB_API SBStream {
   friend class SBValue;
   friend class SBWatchpoint;
 
+  friend class lldb_private::ScriptInterpreter;
+
   lldb_private::Stream *operator->();
 
   lldb_private::Stream *get();

diff  --git a/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h 
b/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h
index 9753a916243b7be..69504dbcda5dc8b 100644
--- a/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h
+++ b/lldb/include/lldb/Interpreter/Interfaces/ScriptedInterface.h
@@ -10,7 +10,6 @@
 #define LLDB_INTERPRETER_INTERFACES_SCRIPTEDINTERFACE_H
 
 #include "lldb/Core/StructuredDataImpl.h"
-#include "lldb/Target/ExecutionContext.h"
 #include "lldb/Utility/LLDBLog.h"
 #include "lldb/Utility/Log.h"
 #include "lldb/Utility/UnimplementedError.h"
@@ -52,7 +51,8 @@ class ScriptedInterface {
   }
 
   template <typename T = StructuredData::ObjectSP>
-  bool CheckStructuredDataObject(llvm::StringRef caller, T obj, Status &error) 
{
+  static bool CheckStructuredDataObject(llvm::StringRef caller, T obj,
+                                        Status &error) {
     if (!obj)
       return ErrorWithMessage<bool>(caller, "Null Structured Data object",
                                     error);

diff  --git 
a/lldb/include/lldb/Interpreter/Interfaces/ScriptedThreadPlanInterface.h 
b/lldb/include/lldb/Interpreter/Interfaces/ScriptedThreadPlanInterface.h
new file mode 100644
index 000000000000000..9130f9412cb0bde
--- /dev/null
+++ b/lldb/include/lldb/Interpreter/Interfaces/ScriptedThreadPlanInterface.h
@@ -0,0 +1,38 @@
+//===-- ScriptedThreadPlanInterface.h ---------------------------*- 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_INTERPRETER_INTERFACES_SCRIPTEDTHREADPLANINTERFACE_H
+#define LLDB_INTERPRETER_INTERFACES_SCRIPTEDTHREADPLANINTERFACE_H
+
+#include "lldb/lldb-private.h"
+
+#include "ScriptedInterface.h"
+
+namespace lldb_private {
+class ScriptedThreadPlanInterface : public ScriptedInterface {
+public:
+  virtual llvm::Expected<StructuredData::GenericSP>
+  CreatePluginObject(llvm::StringRef class_name,
+                     lldb::ThreadPlanSP thread_plan_sp,
+                     const StructuredDataImpl &args_sp) = 0;
+
+  virtual llvm::Expected<bool> ExplainsStop(Event *event) { return true; }
+
+  virtual llvm::Expected<bool> ShouldStop(Event *event) { return true; }
+
+  virtual llvm::Expected<bool> IsStale() { return true; };
+
+  virtual lldb::StateType GetRunState() { return lldb::eStateStepping; }
+
+  virtual llvm::Expected<bool> GetStopDescription(lldb_private::Stream *s) {
+    return true;
+  }
+};
+} // namespace lldb_private
+
+#endif // LLDB_INTERPRETER_INTERFACES_SCRIPTEDTHREADPLANINTERFACE_H

diff  --git a/lldb/include/lldb/Interpreter/ScriptInterpreter.h 
b/lldb/include/lldb/Interpreter/ScriptInterpreter.h
index b941f6012a117b6..e5cbe10627a4066 100644
--- a/lldb/include/lldb/Interpreter/ScriptInterpreter.h
+++ b/lldb/include/lldb/Interpreter/ScriptInterpreter.h
@@ -13,8 +13,10 @@
 #include "lldb/API/SBBreakpoint.h"
 #include "lldb/API/SBData.h"
 #include "lldb/API/SBError.h"
+#include "lldb/API/SBEvent.h"
 #include "lldb/API/SBLaunchInfo.h"
 #include "lldb/API/SBMemoryRegionInfo.h"
+#include "lldb/API/SBStream.h"
 #include "lldb/Breakpoint/BreakpointOptions.h"
 #include "lldb/Core/PluginInterface.h"
 #include "lldb/Core/SearchFilter.h"
@@ -25,6 +27,7 @@
 #include "lldb/Interpreter/Interfaces/ScriptedPlatformInterface.h"
 #include "lldb/Interpreter/Interfaces/ScriptedProcessInterface.h"
 #include "lldb/Interpreter/Interfaces/ScriptedThreadInterface.h"
+#include "lldb/Interpreter/Interfaces/ScriptedThreadPlanInterface.h"
 #include "lldb/Interpreter/ScriptObject.h"
 #include "lldb/Utility/Broadcaster.h"
 #include "lldb/Utility/Status.h"
@@ -250,50 +253,6 @@ class ScriptInterpreter : public PluginInterface {
     return lldb::ValueObjectListSP();
   }
 
-  virtual StructuredData::ObjectSP
-  CreateScriptedThreadPlan(const char *class_name,
-                           const StructuredDataImpl &args_data,
-                           std::string &error_str,
-                           lldb::ThreadPlanSP thread_plan_sp) {
-    return StructuredData::ObjectSP();
-  }
-
-  virtual bool
-  ScriptedThreadPlanExplainsStop(StructuredData::ObjectSP implementor_sp,
-                                 Event *event, bool &script_error) {
-    script_error = true;
-    return true;
-  }
-
-  virtual bool
-  ScriptedThreadPlanShouldStop(StructuredData::ObjectSP implementor_sp,
-                               Event *event, bool &script_error) {
-    script_error = true;
-    return true;
-  }
-
-  virtual bool
-  ScriptedThreadPlanIsStale(StructuredData::ObjectSP implementor_sp,
-                            bool &script_error) {
-    script_error = true;
-    return true;
-  }
-
-  virtual lldb::StateType
-  ScriptedThreadPlanGetRunState(StructuredData::ObjectSP implementor_sp,
-                                bool &script_error) {
-    script_error = true;
-    return lldb::eStateStepping;
-  }
-
-  virtual bool
-  ScriptedThreadPlanGetStopDescription(StructuredData::ObjectSP implementor_sp,
-                                       lldb_private::Stream *stream,
-                                       bool &script_error) {
-    script_error = true;
-    return false;
-  }
-
   virtual StructuredData::GenericSP
   CreateScriptedBreakpointResolver(const char *class_name,
                                    const StructuredDataImpl &args_data,
@@ -563,6 +522,11 @@ class ScriptInterpreter : public PluginInterface {
     return {};
   }
 
+  virtual lldb::ScriptedThreadPlanInterfaceSP
+  CreateScriptedThreadPlanInterface() {
+    return {};
+  }
+
   virtual lldb::OperatingSystemInterfaceSP CreateOperatingSystemInterface() {
     return {};
   }
@@ -581,6 +545,10 @@ class ScriptInterpreter : public PluginInterface {
 
   Status GetStatusFromSBError(const lldb::SBError &error) const;
 
+  Event *GetOpaqueTypeFromSBEvent(const lldb::SBEvent &event) const;
+
+  Stream *GetOpaqueTypeFromSBStream(const lldb::SBStream &stream) const;
+
   lldb::BreakpointSP
   GetOpaqueTypeFromSBBreakpoint(const lldb::SBBreakpoint &breakpoint) const;
 

diff  --git a/lldb/include/lldb/Target/ThreadPlanPython.h 
b/lldb/include/lldb/Target/ThreadPlanPython.h
index 64854d66b8f2589..da106faf951db1c 100644
--- a/lldb/include/lldb/Target/ThreadPlanPython.h
+++ b/lldb/include/lldb/Target/ThreadPlanPython.h
@@ -13,6 +13,7 @@
 #include <string>
 
 #include "lldb/Core/StructuredDataImpl.h"
+#include "lldb/Interpreter/Interfaces/ScriptedThreadPlanInterface.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Target/StopInfo.h"
 #include "lldb/Target/Target.h"
@@ -70,6 +71,7 @@ class ThreadPlanPython : public ThreadPlan {
   StreamString m_stop_description; // Cache the stop description here
   bool m_did_push;
   bool m_stop_others;
+  lldb::ScriptedThreadPlanInterfaceSP m_interface;
 
   ThreadPlanPython(const ThreadPlanPython &) = delete;
   const ThreadPlanPython &operator=(const ThreadPlanPython &) = delete;

diff  --git a/lldb/include/lldb/lldb-forward.h 
b/lldb/include/lldb/lldb-forward.h
index d89ad21512215f7..83ecf37449e52c9 100644
--- a/lldb/include/lldb/lldb-forward.h
+++ b/lldb/include/lldb/lldb-forward.h
@@ -187,6 +187,7 @@ class ScriptedMetadata;
 class ScriptedPlatformInterface;
 class ScriptedProcessInterface;
 class ScriptedThreadInterface;
+class ScriptedThreadPlanInterface;
 class ScriptedSyntheticChildren;
 class SearchFilter;
 class Section;
@@ -402,6 +403,8 @@ typedef 
std::unique_ptr<lldb_private::ScriptedProcessInterface>
     ScriptedProcessInterfaceUP;
 typedef std::shared_ptr<lldb_private::ScriptedThreadInterface>
     ScriptedThreadInterfaceSP;
+typedef std::shared_ptr<lldb_private::ScriptedThreadPlanInterface>
+    ScriptedThreadPlanInterfaceSP;
 typedef std::shared_ptr<lldb_private::Section> SectionSP;
 typedef std::unique_ptr<lldb_private::SectionList> SectionListUP;
 typedef std::weak_ptr<lldb_private::Section> SectionWP;

diff  --git a/lldb/source/Interpreter/ScriptInterpreter.cpp 
b/lldb/source/Interpreter/ScriptInterpreter.cpp
index 8dd499ce819a789..75b2a39a8d11b3e 100644
--- a/lldb/source/Interpreter/ScriptInterpreter.cpp
+++ b/lldb/source/Interpreter/ScriptInterpreter.cpp
@@ -101,6 +101,19 @@ ScriptInterpreter::GetStatusFromSBError(const 
lldb::SBError &error) const {
   return Status();
 }
 
+Event *
+ScriptInterpreter::GetOpaqueTypeFromSBEvent(const lldb::SBEvent &event) const {
+  return event.m_opaque_ptr;
+}
+
+Stream *ScriptInterpreter::GetOpaqueTypeFromSBStream(
+    const lldb::SBStream &stream) const {
+  if (stream.m_opaque_up)
+    return const_cast<lldb::SBStream &>(stream).m_opaque_up.get();
+
+  return nullptr;
+}
+
 std::optional<MemoryRegionInfo>
 ScriptInterpreter::GetOpaqueTypeFromSBMemoryRegionInfo(
     const lldb::SBMemoryRegionInfo &mem_region) const {

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt
index b22abc49c92a9a9..c60e4bb503a3710 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/CMakeLists.txt
@@ -24,6 +24,7 @@ add_lldb_library(lldbPluginScriptInterpreterPythonInterfaces
   ScriptedPythonInterface.cpp
   ScriptedProcessPythonInterface.cpp
   ScriptedThreadPythonInterface.cpp
+  ScriptedThreadPlanPythonInterface.cpp
   ScriptedPlatformPythonInterface.cpp
 
   LINK_LIBS

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPlatformPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPlatformPythonInterface.cpp
index 9ba4731032bd354..6e93bec80056ee2 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPlatformPythonInterface.cpp
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPlatformPythonInterface.cpp
@@ -20,6 +20,8 @@
 #include "../ScriptInterpreterPythonImpl.h"
 #include "ScriptedPlatformPythonInterface.h"
 
+#include "lldb/Target/ExecutionContext.h"
+
 using namespace lldb;
 using namespace lldb_private;
 using namespace lldb_private::python;

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
index e86b34d6b930e4e..313c597ce48f3cb 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedProcessPythonInterface.cpp
@@ -49,7 +49,8 @@ StructuredData::DictionarySP 
ScriptedProcessPythonInterface::GetCapabilities() {
   StructuredData::DictionarySP dict =
       Dispatch<StructuredData::DictionarySP>("get_capabilities", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict,
+                                                    error))
     return {};
 
   return dict;
@@ -90,7 +91,8 @@ StructuredData::DictionarySP 
ScriptedProcessPythonInterface::GetThreadsInfo() {
   StructuredData::DictionarySP dict =
       Dispatch<StructuredData::DictionarySP>("get_threads_info", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict,
+                                                    error))
     return {};
 
   return dict;
@@ -106,7 +108,8 @@ bool 
ScriptedProcessPythonInterface::CreateBreakpoint(lldb::addr_t addr,
   if (py_error.Fail())
     error = py_error;
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return {};
 
   return obj->GetBooleanValue();
@@ -131,7 +134,8 @@ lldb::offset_t 
ScriptedProcessPythonInterface::WriteMemoryAtAddress(
   StructuredData::ObjectSP obj =
       Dispatch("write_memory_at_address", py_error, addr, data_sp, error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return LLDB_INVALID_OFFSET;
 
   // If there was an error on the python call, surface it to the user.
@@ -146,7 +150,8 @@ StructuredData::ArraySP 
ScriptedProcessPythonInterface::GetLoadedImages() {
   StructuredData::ArraySP array =
       Dispatch<StructuredData::ArraySP>("get_loaded_images", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, array, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, 
array,
+                                                    error))
     return {};
 
   return array;
@@ -156,7 +161,8 @@ lldb::pid_t ScriptedProcessPythonInterface::GetProcessID() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("get_process_id", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return LLDB_INVALID_PROCESS_ID;
 
   return obj->GetUnsignedIntegerValue(LLDB_INVALID_PROCESS_ID);
@@ -166,7 +172,8 @@ bool ScriptedProcessPythonInterface::IsAlive() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("is_alive", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return {};
 
   return obj->GetBooleanValue();
@@ -177,7 +184,8 @@ 
ScriptedProcessPythonInterface::GetScriptedThreadPluginName() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("get_scripted_thread_plugin", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return {};
 
   return obj->GetStringValue().str();
@@ -193,7 +201,8 @@ StructuredData::DictionarySP 
ScriptedProcessPythonInterface::GetMetadata() {
   StructuredData::DictionarySP dict =
       Dispatch<StructuredData::DictionarySP>("get_process_metadata", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict,
+                                                    error))
     return {};
 
   return dict;

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.cpp
index 6f22503b279ca62..7d072212676e130 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.cpp
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.cpp
@@ -26,6 +26,15 @@ ScriptedPythonInterface::ScriptedPythonInterface(
     ScriptInterpreterPythonImpl &interpreter)
     : ScriptedInterface(), m_interpreter(interpreter) {}
 
+template <>
+void ScriptedPythonInterface::ReverseTransform(
+    lldb_private::Stream *&original_arg, python::PythonObject transformed_arg,
+    Status &error) {
+  Stream *s = ExtractValueFromPythonObject<Stream *>(transformed_arg, error);
+  *original_arg = *s;
+  original_arg->PutCString(static_cast<StreamString *>(s)->GetData());
+}
+
 template <>
 StructuredData::ArraySP
 ScriptedPythonInterface::ExtractValueFromPythonObject<StructuredData::ArraySP>(
@@ -48,12 +57,33 @@ Status 
ScriptedPythonInterface::ExtractValueFromPythonObject<Status>(
   if (lldb::SBError *sb_error = reinterpret_cast<lldb::SBError *>(
           python::LLDBSWIGPython_CastPyObjectToSBError(p.get())))
     return m_interpreter.GetStatusFromSBError(*sb_error);
-  else
-    error.SetErrorString("Couldn't cast lldb::SBError to lldb::Status.");
+  error.SetErrorString("Couldn't cast lldb::SBError to lldb::Status.");
 
   return {};
 }
 
+template <>
+Event *ScriptedPythonInterface::ExtractValueFromPythonObject<Event *>(
+    python::PythonObject &p, Status &error) {
+  if (lldb::SBEvent *sb_event = reinterpret_cast<lldb::SBEvent *>(
+          python::LLDBSWIGPython_CastPyObjectToSBEvent(p.get())))
+    return m_interpreter.GetOpaqueTypeFromSBEvent(*sb_event);
+  error.SetErrorString("Couldn't cast lldb::SBEvent to lldb_private::Event.");
+
+  return nullptr;
+}
+
+template <>
+Stream *ScriptedPythonInterface::ExtractValueFromPythonObject<Stream *>(
+    python::PythonObject &p, Status &error) {
+  if (lldb::SBStream *sb_stream = reinterpret_cast<lldb::SBStream *>(
+          python::LLDBSWIGPython_CastPyObjectToSBStream(p.get())))
+    return m_interpreter.GetOpaqueTypeFromSBStream(*sb_stream);
+  error.SetErrorString("Couldn't cast lldb::SBStream to 
lldb_private::Stream.");
+
+  return nullptr;
+}
+
 template <>
 lldb::DataExtractorSP
 ScriptedPythonInterface::ExtractValueFromPythonObject<lldb::DataExtractorSP>(

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.h
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.h
index 163659234466d38..062bf1fcff4ac4e 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.h
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.h
@@ -115,7 +115,7 @@ class ScriptedPythonInterface : virtual public 
ScriptedInterface {
           PythonObject::ResolveNameWithDictionary<python::PythonCallable>(
               class_name, dict);
       if (!init.IsAllocated())
-        return create_error(llvm::formatv("Could not find script class: %s",
+        return create_error(llvm::formatv("Could not find script class: {0}",
                                           class_name.data()));
 
       std::tuple<Args...> original_args = std::forward_as_tuple(args...);
@@ -248,8 +248,11 @@ class ScriptedPythonInterface : virtual public 
ScriptedInterface {
                              (PyObject *)m_object_instance_sp->GetValue());
 
     if (!implementor.IsAllocated())
-      return ErrorWithMessage<T>(caller_signature,
-                                 "Python implementor not allocated.", error);
+      return llvm::is_contained(GetAbstractMethods(), method_name)
+                 ? ErrorWithMessage<T>(caller_signature,
+                                       "Python implementor not allocated.",
+                                       error)
+                 : T{};
 
     std::tuple<Args...> original_args = std::forward_as_tuple(args...);
     auto transformed_args = TransformArgs(original_args);
@@ -322,6 +325,10 @@ class ScriptedPythonInterface : virtual public 
ScriptedInterface {
     return python::SWIGBridge::ToSWIGWrapper(arg);
   }
 
+  python::PythonObject Transform(lldb::ThreadPlanSP arg) {
+    return python::SWIGBridge::ToSWIGWrapper(arg);
+  }
+
   python::PythonObject Transform(lldb::ProcessAttachInfoSP arg) {
     return python::SWIGBridge::ToSWIGWrapper(arg);
   }
@@ -330,6 +337,14 @@ class ScriptedPythonInterface : virtual public 
ScriptedInterface {
     return python::SWIGBridge::ToSWIGWrapper(arg);
   }
 
+  python::PythonObject Transform(Event *arg) {
+    return python::SWIGBridge::ToSWIGWrapper(arg);
+  }
+
+  python::PythonObject Transform(Stream *arg) {
+    return python::SWIGBridge::ToSWIGWrapper(arg);
+  }
+
   python::PythonObject Transform(lldb::DataExtractorSP arg) {
     return python::SWIGBridge::ToSWIGWrapper(arg);
   }
@@ -427,6 +442,14 @@ template <>
 Status ScriptedPythonInterface::ExtractValueFromPythonObject<Status>(
     python::PythonObject &p, Status &error);
 
+template <>
+Event *ScriptedPythonInterface::ExtractValueFromPythonObject<Event *>(
+    python::PythonObject &p, Status &error);
+
+template <>
+Stream *ScriptedPythonInterface::ExtractValueFromPythonObject<Stream *>(
+    python::PythonObject &p, Status &error);
+
 template <>
 lldb::BreakpointSP
 ScriptedPythonInterface::ExtractValueFromPythonObject<lldb::BreakpointSP>(

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
new file mode 100644
index 000000000000000..b7e475812f22b2c
--- /dev/null
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.cpp
@@ -0,0 +1,105 @@
+//===-- ScriptedThreadPlanPythonInterface.cpp 
-----------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Host/Config.h"
+#include "lldb/Utility/Log.h"
+#include "lldb/lldb-enumerations.h"
+
+#if LLDB_ENABLE_PYTHON
+
+// LLDB Python header must be included first
+#include "../lldb-python.h"
+
+#include "../SWIGPythonBridge.h"
+#include "../ScriptInterpreterPythonImpl.h"
+#include "ScriptedThreadPlanPythonInterface.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::python;
+
+ScriptedThreadPlanPythonInterface::ScriptedThreadPlanPythonInterface(
+    ScriptInterpreterPythonImpl &interpreter)
+    : ScriptedThreadPlanInterface(), ScriptedPythonInterface(interpreter) {}
+
+llvm::Expected<StructuredData::GenericSP>
+ScriptedThreadPlanPythonInterface::CreatePluginObject(
+    const llvm::StringRef class_name, lldb::ThreadPlanSP thread_plan_sp,
+    const StructuredDataImpl &args_sp) {
+  return ScriptedPythonInterface::CreatePluginObject(class_name, nullptr,
+                                                     thread_plan_sp, args_sp);
+}
+
+llvm::Expected<bool>
+ScriptedThreadPlanPythonInterface::ExplainsStop(Event *event) {
+  Status error;
+  StructuredData::ObjectSP obj = Dispatch("explains_stop", error, event);
+
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error)) {
+    if (!obj)
+      return false;
+    return error.ToError();
+  }
+
+  return obj->GetBooleanValue();
+}
+
+llvm::Expected<bool>
+ScriptedThreadPlanPythonInterface::ShouldStop(Event *event) {
+  Status error;
+  StructuredData::ObjectSP obj = Dispatch("should_stop", error, event);
+
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error)) {
+    if (!obj)
+      return false;
+    return error.ToError();
+  }
+
+  return obj->GetBooleanValue();
+}
+
+llvm::Expected<bool> ScriptedThreadPlanPythonInterface::IsStale() {
+  Status error;
+  StructuredData::ObjectSP obj = Dispatch("is_stale", error);
+
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error)) {
+    if (!obj)
+      return false;
+    return error.ToError();
+  }
+
+  return obj->GetBooleanValue();
+}
+
+lldb::StateType ScriptedThreadPlanPythonInterface::GetRunState() {
+  Status error;
+  StructuredData::ObjectSP obj = Dispatch("should_step", error);
+
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
+    return lldb::eStateStepping;
+
+  return static_cast<lldb::StateType>(obj->GetUnsignedIntegerValue(
+      static_cast<uint32_t>(lldb::eStateStepping)));
+}
+
+llvm::Expected<bool>
+ScriptedThreadPlanPythonInterface::GetStopDescription(lldb_private::Stream *s) 
{
+  Status error;
+  Dispatch("stop_description", error, s);
+
+  if (error.Fail())
+    return error.ToError();
+
+  return true;
+}
+
+#endif

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h
new file mode 100644
index 000000000000000..33f086786c47b9c
--- /dev/null
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPlanPythonInterface.h
@@ -0,0 +1,48 @@
+//===-- ScriptedThreadPlanPythonInterface.h ---------------------*- 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_PLUGINS_SCRIPTINTERPRETER_PYTHON_INTERFACES_SCRIPTEDTHREADPLANPYTHONINTERFACE_H
+#define 
LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_INTERFACES_SCRIPTEDTHREADPLANPYTHONINTERFACE_H
+
+#include "lldb/Host/Config.h"
+
+#if LLDB_ENABLE_PYTHON
+
+#include "ScriptedPythonInterface.h"
+#include "lldb/Interpreter/Interfaces/ScriptedThreadPlanInterface.h"
+#include <optional>
+
+namespace lldb_private {
+class ScriptedThreadPlanPythonInterface : public ScriptedThreadPlanInterface,
+                                          public ScriptedPythonInterface {
+public:
+  ScriptedThreadPlanPythonInterface(ScriptInterpreterPythonImpl &interpreter);
+
+  llvm::Expected<StructuredData::GenericSP>
+  CreatePluginObject(const llvm::StringRef class_name,
+                     lldb::ThreadPlanSP thread_plan_sp,
+                     const StructuredDataImpl &args_sp) override;
+
+  llvm::SmallVector<llvm::StringLiteral> GetAbstractMethods() const override {
+    return {};
+  }
+
+  llvm::Expected<bool> ExplainsStop(Event *event) override;
+
+  llvm::Expected<bool> ShouldStop(Event *event) override;
+
+  llvm::Expected<bool> IsStale() override;
+
+  lldb::StateType GetRunState() override;
+
+  llvm::Expected<bool> GetStopDescription(lldb_private::Stream *s) override;
+};
+} // namespace lldb_private
+
+#endif // LLDB_ENABLE_PYTHON
+#endif // 
LLDB_PLUGINS_SCRIPTINTERPRETER_PYTHON_INTERFACES_SCRIPTEDTHREADPLANPYTHONINTERFACE_H

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPythonInterface.cpp
 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPythonInterface.cpp
index 18e268527eb2fb5..8af89d761764bc8 100644
--- 
a/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPythonInterface.cpp
+++ 
b/lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedThreadPythonInterface.cpp
@@ -7,6 +7,7 @@
 
//===----------------------------------------------------------------------===//
 
 #include "lldb/Host/Config.h"
+#include "lldb/Target/ExecutionContext.h"
 #include "lldb/Utility/Log.h"
 #include "lldb/lldb-enumerations.h"
 
@@ -44,7 +45,8 @@ lldb::tid_t ScriptedThreadPythonInterface::GetThreadID() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("get_thread_id", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return LLDB_INVALID_THREAD_ID;
 
   return obj->GetUnsignedIntegerValue(LLDB_INVALID_THREAD_ID);
@@ -54,7 +56,8 @@ std::optional<std::string> 
ScriptedThreadPythonInterface::GetName() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("get_name", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return {};
 
   return obj->GetStringValue().str();
@@ -64,7 +67,8 @@ lldb::StateType ScriptedThreadPythonInterface::GetState() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("get_state", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return eStateInvalid;
 
   return static_cast<StateType>(obj->GetUnsignedIntegerValue(eStateInvalid));
@@ -74,7 +78,8 @@ std::optional<std::string> 
ScriptedThreadPythonInterface::GetQueue() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("get_queue", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return {};
 
   return obj->GetStringValue().str();
@@ -85,7 +90,8 @@ StructuredData::DictionarySP 
ScriptedThreadPythonInterface::GetStopReason() {
   StructuredData::DictionarySP dict =
       Dispatch<StructuredData::DictionarySP>("get_stop_reason", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict,
+                                                    error))
     return {};
 
   return dict;
@@ -96,7 +102,8 @@ StructuredData::ArraySP 
ScriptedThreadPythonInterface::GetStackFrames() {
   StructuredData::ArraySP arr =
       Dispatch<StructuredData::ArraySP>("get_stackframes", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, arr, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, arr,
+                                                    error))
     return {};
 
   return arr;
@@ -107,7 +114,8 @@ StructuredData::DictionarySP 
ScriptedThreadPythonInterface::GetRegisterInfo() {
   StructuredData::DictionarySP dict =
       Dispatch<StructuredData::DictionarySP>("get_register_info", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict,
+                                                    error))
     return {};
 
   return dict;
@@ -117,7 +125,8 @@ std::optional<std::string> 
ScriptedThreadPythonInterface::GetRegisterContext() {
   Status error;
   StructuredData::ObjectSP obj = Dispatch("get_register_context", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj,
+                                                    error))
     return {};
 
   return obj->GetAsString()->GetValue().str();
@@ -128,7 +137,8 @@ StructuredData::ArraySP 
ScriptedThreadPythonInterface::GetExtendedInfo() {
   StructuredData::ArraySP arr =
       Dispatch<StructuredData::ArraySP>("get_extended_info", error);
 
-  if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, arr, error))
+  if (!ScriptedInterface::CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, arr,
+                                                    error))
     return {};
 
   return arr;

diff  --git a/lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h 
b/lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
index 7cdd5577919ba8d..597902306c9ef14 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/SWIGPythonBridge.h
@@ -96,12 +96,14 @@ class SWIGBridge {
   static PythonObject ToSWIGWrapper(lldb::ExecutionContextRefSP ctx_sp);
   static PythonObject ToSWIGWrapper(const TypeSummaryOptions &summary_options);
   static PythonObject ToSWIGWrapper(const SymbolContext &sym_ctx);
+  static PythonObject ToSWIGWrapper(const Stream *stream);
+  static PythonObject ToSWIGWrapper(std::shared_ptr<lldb::SBStream> stream_sb);
+  static PythonObject ToSWIGWrapper(Event *event);
 
   static PythonObject ToSWIGWrapper(lldb::ProcessAttachInfoSP attach_info_sp);
   static PythonObject ToSWIGWrapper(lldb::ProcessLaunchInfoSP launch_info_sp);
   static PythonObject ToSWIGWrapper(lldb::DataExtractorSP data_extractor_sp);
 
-  static PythonObject ToSWIGWrapper(std::unique_ptr<lldb::SBStream> stream_sb);
   static PythonObject
   ToSWIGWrapper(std::unique_ptr<lldb::SBStructuredData> data_sb);
   static PythonObject
@@ -111,7 +113,6 @@ class SWIGBridge {
 
   static python::ScopedPythonObject<lldb::SBCommandReturnObject>
   ToSWIGWrapper(CommandReturnObject &cmd_retobj);
-  static python::ScopedPythonObject<lldb::SBEvent> ToSWIGWrapper(Event *event);
   // These prototypes are the Pythonic implementations of the required
   // callbacks. Although these are scripting-language specific, their 
definition
   // depends on the public API.
@@ -146,21 +147,6 @@ class SWIGBridge {
                                     const char *session_dictionary_name,
                                     lldb::DebuggerSP debugger_sp);
 
-  static python::PythonObject LLDBSwigPythonCreateScriptedThreadPlan(
-      const char *python_class_name, const char *session_dictionary_name,
-      const StructuredDataImpl &args_data, std::string &error_string,
-      const lldb::ThreadPlanSP &thread_plan_sp);
-
-  static bool LLDBSWIGPythonCallThreadPlan(void *implementor,
-                                           const char *method_name,
-                                           lldb_private::Event *event_sp,
-                                           bool &got_error);
-
-  static bool LLDBSWIGPythonCallThreadPlan(void *implementor,
-                                           const char *method_name,
-                                           lldb_private::Stream *stream,
-                                           bool &got_error);
-
   static python::PythonObject LLDBSwigPythonCreateScriptedBreakpointResolver(
       const char *python_class_name, const char *session_dictionary_name,
       const StructuredDataImpl &args, const lldb::BreakpointSP &bkpt_sp);
@@ -262,6 +248,8 @@ void *LLDBSWIGPython_CastPyObjectToSBBreakpoint(PyObject 
*data);
 void *LLDBSWIGPython_CastPyObjectToSBAttachInfo(PyObject *data);
 void *LLDBSWIGPython_CastPyObjectToSBLaunchInfo(PyObject *data);
 void *LLDBSWIGPython_CastPyObjectToSBError(PyObject *data);
+void *LLDBSWIGPython_CastPyObjectToSBEvent(PyObject *data);
+void *LLDBSWIGPython_CastPyObjectToSBStream(PyObject *data);
 void *LLDBSWIGPython_CastPyObjectToSBValue(PyObject *data);
 void *LLDBSWIGPython_CastPyObjectToSBMemoryRegionInfo(PyObject *data);
 } // namespace python

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp 
b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
index ef7a2c128a22074..c9f65266e5b900b 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -17,6 +17,7 @@
 #include "Interfaces/OperatingSystemPythonInterface.h"
 #include "Interfaces/ScriptedPlatformPythonInterface.h"
 #include "Interfaces/ScriptedProcessPythonInterface.h"
+#include "Interfaces/ScriptedThreadPlanPythonInterface.h"
 #include "Interfaces/ScriptedThreadPythonInterface.h"
 #include "PythonDataObjects.h"
 #include "PythonReadline.h"
@@ -1533,6 +1534,11 @@ 
ScriptInterpreterPythonImpl::CreateScriptedThreadInterface() {
   return std::make_shared<ScriptedThreadPythonInterface>(*this);
 }
 
+ScriptedThreadPlanInterfaceSP
+ScriptInterpreterPythonImpl::CreateScriptedThreadPlanInterface() {
+  return std::make_shared<ScriptedThreadPlanPythonInterface>(*this);
+}
+
 OperatingSystemInterfaceSP
 ScriptInterpreterPythonImpl::CreateOperatingSystemInterface() {
   return std::make_shared<OperatingSystemPythonInterface>(*this);
@@ -1549,122 +1555,6 @@ 
ScriptInterpreterPythonImpl::CreateStructuredDataFromScriptObject(
   return py_obj.CreateStructuredObject();
 }
 
-StructuredData::ObjectSP ScriptInterpreterPythonImpl::CreateScriptedThreadPlan(
-    const char *class_name, const StructuredDataImpl &args_data,
-    std::string &error_str, lldb::ThreadPlanSP thread_plan_sp) {
-  if (class_name == nullptr || class_name[0] == '\0')
-    return StructuredData::ObjectSP();
-
-  if (!thread_plan_sp.get())
-    return {};
-
-  Debugger &debugger = thread_plan_sp->GetTarget().GetDebugger();
-  ScriptInterpreterPythonImpl *python_interpreter =
-      GetPythonInterpreter(debugger);
-
-  if (!python_interpreter)
-    return {};
-
-  Locker py_lock(this,
-                 Locker::AcquireLock | Locker::InitSession | Locker::NoSTDIN);
-  PythonObject ret_val = SWIGBridge::LLDBSwigPythonCreateScriptedThreadPlan(
-      class_name, python_interpreter->m_dictionary_name.c_str(), args_data,
-      error_str, thread_plan_sp);
-  if (!ret_val)
-    return {};
-
-  return StructuredData::ObjectSP(
-      new StructuredPythonObject(std::move(ret_val)));
-}
-
-bool ScriptInterpreterPythonImpl::ScriptedThreadPlanExplainsStop(
-    StructuredData::ObjectSP implementor_sp, Event *event, bool &script_error) 
{
-  bool explains_stop = true;
-  StructuredData::Generic *generic = nullptr;
-  if (implementor_sp)
-    generic = implementor_sp->GetAsGeneric();
-  if (generic) {
-    Locker py_lock(this,
-                   Locker::AcquireLock | Locker::InitSession | 
Locker::NoSTDIN);
-    explains_stop = SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-        generic->GetValue(), "explains_stop", event, script_error);
-    if (script_error)
-      return true;
-  }
-  return explains_stop;
-}
-
-bool ScriptInterpreterPythonImpl::ScriptedThreadPlanShouldStop(
-    StructuredData::ObjectSP implementor_sp, Event *event, bool &script_error) 
{
-  bool should_stop = true;
-  StructuredData::Generic *generic = nullptr;
-  if (implementor_sp)
-    generic = implementor_sp->GetAsGeneric();
-  if (generic) {
-    Locker py_lock(this,
-                   Locker::AcquireLock | Locker::InitSession | 
Locker::NoSTDIN);
-    should_stop = SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-        generic->GetValue(), "should_stop", event, script_error);
-    if (script_error)
-      return true;
-  }
-  return should_stop;
-}
-
-bool ScriptInterpreterPythonImpl::ScriptedThreadPlanIsStale(
-    StructuredData::ObjectSP implementor_sp, bool &script_error) {
-  bool is_stale = true;
-  StructuredData::Generic *generic = nullptr;
-  if (implementor_sp)
-    generic = implementor_sp->GetAsGeneric();
-  if (generic) {
-    Locker py_lock(this,
-                   Locker::AcquireLock | Locker::InitSession | 
Locker::NoSTDIN);
-    is_stale = SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-        generic->GetValue(), "is_stale", (Event *)nullptr, script_error);
-    if (script_error)
-      return true;
-  }
-  return is_stale;
-}
-
-lldb::StateType ScriptInterpreterPythonImpl::ScriptedThreadPlanGetRunState(
-    StructuredData::ObjectSP implementor_sp, bool &script_error) {
-  bool should_step = false;
-  StructuredData::Generic *generic = nullptr;
-  if (implementor_sp)
-    generic = implementor_sp->GetAsGeneric();
-  if (generic) {
-    Locker py_lock(this,
-                   Locker::AcquireLock | Locker::InitSession | 
Locker::NoSTDIN);
-    should_step = SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-        generic->GetValue(), "should_step", (Event *)nullptr, script_error);
-    if (script_error)
-      should_step = true;
-  }
-  if (should_step)
-    return lldb::eStateStepping;
-  return lldb::eStateRunning;
-}
-
-bool
-ScriptInterpreterPythonImpl::ScriptedThreadPlanGetStopDescription(
-    StructuredData::ObjectSP implementor_sp, lldb_private::Stream *stream,
-    bool &script_error) {
-  StructuredData::Generic *generic = nullptr;
-  if (implementor_sp)
-    generic = implementor_sp->GetAsGeneric();
-  if (!generic) {
-    script_error = true;
-    return false;
-  }
-  Locker py_lock(this,
-                   Locker::AcquireLock | Locker::InitSession | 
Locker::NoSTDIN);
-  return SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-      generic->GetValue(), "stop_description", stream, script_error);
-}
-
-
 StructuredData::GenericSP
 ScriptInterpreterPythonImpl::CreateScriptedBreakpointResolver(
     const char *class_name, const StructuredDataImpl &args_data,

diff  --git 
a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h 
b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
index a33499816d8d38c..da8e3a63d084702 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
@@ -77,34 +77,9 @@ class ScriptInterpreterPythonImpl : public 
ScriptInterpreterPython {
   StructuredData::GenericSP
   CreateScriptCommandObject(const char *class_name) override;
 
-  StructuredData::ObjectSP
-  CreateScriptedThreadPlan(const char *class_name,
-                           const StructuredDataImpl &args_data,
-                           std::string &error_str,
-                           lldb::ThreadPlanSP thread_plan) override;
-
   StructuredData::ObjectSP
   CreateStructuredDataFromScriptObject(ScriptObject obj) override;
 
-  bool ScriptedThreadPlanExplainsStop(StructuredData::ObjectSP implementor_sp,
-                                      Event *event,
-                                      bool &script_error) override;
-
-  bool ScriptedThreadPlanShouldStop(StructuredData::ObjectSP implementor_sp,
-                                    Event *event, bool &script_error) override;
-
-  bool ScriptedThreadPlanIsStale(StructuredData::ObjectSP implementor_sp,
-                                 bool &script_error) override;
-
-  lldb::StateType
-  ScriptedThreadPlanGetRunState(StructuredData::ObjectSP implementor_sp,
-                                bool &script_error) override;
-
-  bool
-  ScriptedThreadPlanGetStopDescription(StructuredData::ObjectSP implementor_sp,
-                                lldb_private::Stream *s,
-                                bool &script_error) override;
-
   StructuredData::GenericSP
   CreateScriptedBreakpointResolver(const char *class_name,
                                    const StructuredDataImpl &args_data,
@@ -136,6 +111,9 @@ class ScriptInterpreterPythonImpl : public 
ScriptInterpreterPython {
 
   lldb::ScriptedThreadInterfaceSP CreateScriptedThreadInterface() override;
 
+  lldb::ScriptedThreadPlanInterfaceSP
+  CreateScriptedThreadPlanInterface() override;
+
   lldb::OperatingSystemInterfaceSP CreateOperatingSystemInterface() override;
 
   StructuredData::ObjectSP

diff  --git a/lldb/source/Target/ThreadPlanPython.cpp 
b/lldb/source/Target/ThreadPlanPython.cpp
index d6de6b3c3cf0497..48b3e3a1bcab610 100644
--- a/lldb/source/Target/ThreadPlanPython.cpp
+++ b/lldb/source/Target/ThreadPlanPython.cpp
@@ -32,6 +32,23 @@ ThreadPlanPython::ThreadPlanPython(Thread &thread, const 
char *class_name,
                  eVoteNoOpinion, eVoteNoOpinion),
       m_class_name(class_name), m_args_data(args_data), m_did_push(false),
       m_stop_others(false) {
+  ScriptInterpreter *interpreter = GetScriptInterpreter();
+  if (!interpreter) {
+    SetPlanComplete(false);
+    // FIXME: error handling
+    return;
+  }
+
+  m_interface = interpreter->CreateScriptedThreadPlanInterface();
+  if (!m_interface) {
+    SetPlanComplete(false);
+    // FIXME: error handling
+    // error.SetErrorStringWithFormat(
+    //     "ThreadPlanPython::%s () - ERROR: %s", __FUNCTION__,
+    //     "Script interpreter couldn't create Scripted Thread Plan 
Interface");
+    return;
+  }
+
   SetIsControllingPlan(true);
   SetOkayToDiscard(true);
   SetPrivate(false);
@@ -60,13 +77,14 @@ void ThreadPlanPython::DidPush() {
   // We set up the script side in DidPush, so that it can push other plans in
   // the constructor, and doesn't have to care about the details of DidPush.
   m_did_push = true;
-  if (!m_class_name.empty()) {
-    ScriptInterpreter *script_interp = GetScriptInterpreter();
-    if (script_interp) {
-      m_implementation_sp = script_interp->CreateScriptedThreadPlan(
-          m_class_name.c_str(), m_args_data, m_error_str, 
-          this->shared_from_this());
-    }
+  if (m_interface) {
+    auto obj_or_err = m_interface->CreatePluginObject(
+        m_class_name, this->shared_from_this(), m_args_data);
+    if (!obj_or_err) {
+      m_error_str = llvm::toString(obj_or_err.takeError());
+      SetPlanComplete(false);
+    } else
+      m_implementation_sp = *obj_or_err;
   }
 }
 
@@ -77,14 +95,13 @@ bool ThreadPlanPython::ShouldStop(Event *event_ptr) {
 
   bool should_stop = true;
   if (m_implementation_sp) {
-    ScriptInterpreter *script_interp = GetScriptInterpreter();
-    if (script_interp) {
-      bool script_error;
-      should_stop = script_interp->ScriptedThreadPlanShouldStop(
-          m_implementation_sp, event_ptr, script_error);
-      if (script_error)
-        SetPlanComplete(false);
-    }
+    auto should_stop_or_err = m_interface->ShouldStop(event_ptr);
+    if (!should_stop_or_err) {
+      LLDB_LOG_ERROR(GetLog(LLDBLog::Thread), should_stop_or_err.takeError(),
+                     "Can't call ScriptedThreadPlan::ShouldStop.");
+      SetPlanComplete(false);
+    } else
+      should_stop = *should_stop_or_err;
   }
   return should_stop;
 }
@@ -96,14 +113,13 @@ bool ThreadPlanPython::IsPlanStale() {
 
   bool is_stale = true;
   if (m_implementation_sp) {
-    ScriptInterpreter *script_interp = GetScriptInterpreter();
-    if (script_interp) {
-      bool script_error;
-      is_stale = script_interp->ScriptedThreadPlanIsStale(m_implementation_sp,
-                                                          script_error);
-      if (script_error)
-        SetPlanComplete(false);
-    }
+    auto is_stale_or_err = m_interface->IsStale();
+    if (!is_stale_or_err) {
+      LLDB_LOG_ERROR(GetLog(LLDBLog::Thread), is_stale_or_err.takeError(),
+                     "Can't call ScriptedThreadPlan::IsStale.");
+      SetPlanComplete(false);
+    } else
+      is_stale = *is_stale_or_err;
   }
   return is_stale;
 }
@@ -115,14 +131,14 @@ bool ThreadPlanPython::DoPlanExplainsStop(Event 
*event_ptr) {
 
   bool explains_stop = true;
   if (m_implementation_sp) {
-    ScriptInterpreter *script_interp = GetScriptInterpreter();
-    if (script_interp) {
-      bool script_error;
-      explains_stop = script_interp->ScriptedThreadPlanExplainsStop(
-          m_implementation_sp, event_ptr, script_error);
-      if (script_error)
-        SetPlanComplete(false);
-    }
+    auto explains_stop_or_error = m_interface->ExplainsStop(event_ptr);
+    if (!explains_stop_or_error) {
+      LLDB_LOG_ERROR(GetLog(LLDBLog::Thread),
+                     explains_stop_or_error.takeError(),
+                     "Can't call ScriptedThreadPlan::ExplainsStop.");
+      SetPlanComplete(false);
+    } else
+      explains_stop = *explains_stop_or_error;
   }
   return explains_stop;
 }
@@ -150,14 +166,8 @@ lldb::StateType ThreadPlanPython::GetPlanRunState() {
   LLDB_LOGF(log, "%s called on Python Thread Plan: %s )", LLVM_PRETTY_FUNCTION,
             m_class_name.c_str());
   lldb::StateType run_state = eStateRunning;
-  if (m_implementation_sp) {
-    ScriptInterpreter *script_interp = GetScriptInterpreter();
-    if (script_interp) {
-      bool script_error;
-      run_state = script_interp->ScriptedThreadPlanGetRunState(
-          m_implementation_sp, script_error);
-    }
-  }
+  if (m_implementation_sp)
+    run_state = m_interface->GetRunState();
   return run_state;
 }
 
@@ -168,12 +178,13 @@ void ThreadPlanPython::GetDescription(Stream *s, 
lldb::DescriptionLevel level) {
   if (m_implementation_sp) {
     ScriptInterpreter *script_interp = GetScriptInterpreter();
     if (script_interp) {
-      bool script_error;
-      bool added_desc = script_interp->ScriptedThreadPlanGetStopDescription(
-          m_implementation_sp, s, script_error);
-      if (script_error || !added_desc)
+      auto desc_or_err = m_interface->GetStopDescription(s);
+      if (!desc_or_err || !*desc_or_err) {
+        LLDB_LOG_ERROR(GetLog(LLDBLog::Thread), desc_or_err.takeError(),
+                       "Can't call ScriptedThreadPlan::GetStopDescription.");
         s->Printf("Python thread plan implemented by class %s.",
             m_class_name.c_str());
+      }
     }
     return;
   }

diff  --git a/lldb/test/API/functionalities/step_scripted/Steps.py 
b/lldb/test/API/functionalities/step_scripted/Steps.py
index 7527607be847a56..3325dba75365713 100644
--- a/lldb/test/API/functionalities/step_scripted/Steps.py
+++ b/lldb/test/API/functionalities/step_scripted/Steps.py
@@ -47,7 +47,7 @@ def queue_child_thread_plan(self):
 
 # This plan does a step-over until a variable changes value.
 class StepUntil(StepWithChild):
-    def __init__(self, thread_plan, args_data, dict):
+    def __init__(self, thread_plan, args_data):
         self.thread_plan = thread_plan
         self.frame = thread_plan.GetThread().frames[0]
         self.target = thread_plan.GetThread().GetProcess().GetTarget()
@@ -99,7 +99,7 @@ def stop_description(self, stream):
 class StepReportsStopOthers:
     stop_mode_dict = {}
 
-    def __init__(self, thread_plan, args_data, dict):
+    def __init__(self, thread_plan, args_data):
         self.thread_plan = thread_plan
         self.key = 
str(args_data.GetValueForKey("token").GetUnsignedIntegerValue(1000))
 

diff  --git a/lldb/test/API/functionalities/thread_plan/wrap_step_over.py 
b/lldb/test/API/functionalities/thread_plan/wrap_step_over.py
index 802aaf2d3ffdb10..ebb795abfa0e27a 100644
--- a/lldb/test/API/functionalities/thread_plan/wrap_step_over.py
+++ b/lldb/test/API/functionalities/thread_plan/wrap_step_over.py
@@ -2,7 +2,7 @@
 
 
 class WrapStepOver:
-    def __init__(self, thread_plan, args_data, dict):
+    def __init__(self, thread_plan, args_data):
         self.plan = thread_plan
         thread = thread_plan.GetThread()
         target = thread.GetProcess().GetTarget()

diff  --git a/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp 
b/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
index 7f3359f6bf26b20..8d7e6ac29fe8608 100644
--- a/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
+++ b/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
@@ -96,26 +96,6 @@ 
lldb_private::python::SWIGBridge::LLDBSwigPythonCreateCommandObject(
   return python::PythonObject();
 }
 
-python::PythonObject
-lldb_private::python::SWIGBridge::LLDBSwigPythonCreateScriptedThreadPlan(
-    const char *python_class_name, const char *session_dictionary_name,
-    const StructuredDataImpl &args_data, std::string &error_string,
-    const lldb::ThreadPlanSP &thread_plan_sp) {
-  return python::PythonObject();
-}
-
-bool lldb_private::python::SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-    void *implementor, const char *method_name, Event *event_sp,
-    bool &got_error) {
-  return false;
-}
-
-bool lldb_private::python::SWIGBridge::LLDBSWIGPythonCallThreadPlan(
-    void *implementor, const char *method_name, Stream *event_sp,
-    bool &got_error) {
-  return false;
-}
-
 python::PythonObject lldb_private::python::SWIGBridge::
     LLDBSwigPythonCreateScriptedBreakpointResolver(
         const char *python_class_name, const char *session_dictionary_name,
@@ -170,6 +150,16 @@ 
lldb_private::python::LLDBSWIGPython_CastPyObjectToSBError(PyObject *data) {
   return nullptr;
 }
 
+void *
+lldb_private::python::LLDBSWIGPython_CastPyObjectToSBEvent(PyObject *data) {
+  return nullptr;
+}
+
+void *
+lldb_private::python::LLDBSWIGPython_CastPyObjectToSBStream(PyObject *data) {
+  return nullptr;
+}
+
 void *
 lldb_private::python::LLDBSWIGPython_CastPyObjectToSBValue(PyObject *data) {
   return nullptr;
@@ -319,6 +309,11 @@ 
lldb_private::python::SWIGBridge::ToSWIGWrapper(lldb::ExecutionContextRefSP) {
   return python::PythonObject();
 }
 
+python::PythonObject
+lldb_private::python::SWIGBridge::ToSWIGWrapper(lldb::ThreadPlanSP) {
+  return python::PythonObject();
+}
+
 python::PythonObject
 lldb_private::python::SWIGBridge::ToSWIGWrapper(lldb::ProcessSP) {
   return python::PythonObject();
@@ -328,3 +323,18 @@ python::PythonObject 
lldb_private::python::SWIGBridge::ToSWIGWrapper(
     const lldb_private::StructuredDataImpl &) {
   return python::PythonObject();
 }
+
+python::PythonObject
+lldb_private::python::SWIGBridge::ToSWIGWrapper(Event *event) {
+  return python::PythonObject();
+}
+
+python::PythonObject
+lldb_private::python::SWIGBridge::ToSWIGWrapper(const Stream *stream) {
+  return python::PythonObject();
+}
+
+python::PythonObject lldb_private::python::SWIGBridge::ToSWIGWrapper(
+    std::shared_ptr<lldb::SBStream> stream_sb) {
+  return python::PythonObject();
+}


        
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