[lldb] Convert script native types to StructuredData counterpart

lldb/bindings/headers.swig

@@ -49,6 +49,7 @@
 #include "lldb/API/SBQueue.h"
 #include "lldb/API/SBQueueItem.h"
 #include "lldb/API/SBReproducer.h"
+#include "lldb/API/SBScriptObject.h"
 #include "lldb/API/SBSection.h"
 #include "lldb/API/SBSourceManager.h"
 #include "lldb/API/SBStream.h"

lldb/bindings/interface/SBProcess.i

@@ -353,7 +353,7 @@ public:
     %feature("autodoc", "
     Returns the implementation object of the process plugin if available. None
     otherwise.") GetScriptedImplementation;
-    ScriptedObject
+    lldb::SBScriptObject
     GetScriptedImplementation();
 
     %feature("autodoc", "

lldb/bindings/interface/SBScriptObject.i

@@ -0,0 +1,51 @@
+//===-- SWIG Interface for SBScriptObject -----------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+namespace lldb {
+
+class SBScriptObject
+{
+public:
+  SBScriptObject(const ScriptObjectPtr ptr, lldb::ScriptLanguage lang);
+
+  SBScriptObject(const lldb::SBScriptObject &rhs);
+
+  ~SBScriptObject();
+
+  const lldb::SBScriptObject &operator=(const lldb::SBScriptObject &rhs);
+
+  explicit operator bool() const;
+
+  bool operator!=(const SBScriptObject &rhs) const;
+
+  bool IsValid() const;
+
+  lldb::ScriptObjectPtr GetPointer() const;
+
+  lldb::ScriptLanguage GetLanguage() const;
+
+#ifdef SWIGPYTHON
+    // operator== is a free function, which swig does not handle, so we inject
+    // our own equality operator here
+    %pythoncode%{
+    def __eq__(self, other):
+      return not self.__ne__(other)
+    %}
+#endif
+
+
+#ifdef SWIGPYTHON
+    %pythoncode %{
+        ptr = property(GetPointer, None, doc='''A read only property that returns the underlying script object.''')
+        lang = property(GetLanguage, None, doc='''A read only property that returns the script language associated with with this script object.''')
+    %}
+#endif
+
+};
+
+}

lldb/bindings/interface/SBStructuredData.i

@@ -22,6 +22,9 @@ This class wraps the event type generated by StructuredData features."
 
         SBStructuredData(const lldb::EventSP &event_sp);
 
+        SBStructuredData(const lldb::SBScriptObject obj,
+                         const lldb::SBDebugger &debugger);
+
         ~SBStructuredData();
 
         bool
@@ -50,6 +53,8 @@ This class wraps the event type generated by StructuredData features."
 
         size_t GetStringValue(char *dst, size_t dst_len) const;
 
+        lldb::SBScriptObject GetGenericValue() const;
+
         lldb::SBError
         GetAsJSON(lldb::SBStream &stream) const;
 

lldb/bindings/interfaces.swig

@@ -53,6 +53,7 @@
 %include "./interface/SBQueue.i"
 %include "./interface/SBQueueItem.i"
 %include "./interface/SBReproducer.i"
+%include "./interface/SBScriptObject.i"
 %include "./interface/SBSection.i"
 %include "./interface/SBSourceManager.i"
 %include "./interface/SBStream.i"

lldb/bindings/python/python-typemaps.swig

@@ -54,9 +54,78 @@
   free((char *) $1);
 }
 
-%typemap(out) lldb::ScriptedObject {
+%typecheck(SWIG_TYPECHECK_POINTER) lldb::ScriptObjectPtr {
+  PythonObject obj(PyRefType::Borrowed, $input);
+  if (!obj.IsValid()) {
+    PyErr_Clear();
+    $1 = 0;
+  } else {
+    $1 = 1;
+  }
+}
+
+%typemap(in) lldb::ScriptObjectPtr {
+  if ($input == Py_None) {
+    $1 = nullptr;
+  } else {
+    PythonObject obj(PyRefType::Borrowed, $input);
+    if (!obj.IsValid()) {
+      PyErr_SetString(PyExc_TypeError, "Script object is not valid");
+      SWIG_fail;
+    }
+
+    auto lldb_module = PythonModule::Import("lldb");
+    if (!lldb_module) {
+      std::string err_msg = llvm::toString(lldb_module.takeError());
+      PyErr_SetString(PyExc_TypeError, err_msg.c_str());
+      SWIG_fail;
+    }
+
+    auto sb_structured_data_class = lldb_module.get().Get("SBStructuredData");
+    if (!sb_structured_data_class) {
+      std::string err_msg = llvm::toString(sb_structured_data_class.takeError());
+      PyErr_SetString(PyExc_TypeError, err_msg.c_str());
+      SWIG_fail;
+    }
+
+    if (obj.IsInstance(sb_structured_data_class.get())) {
+      $1 = obj.get();
+    } else {
+      auto type = obj.GetType();
+      if (!type) {
+        std::string err_msg = llvm::toString(type.takeError());
+        PyErr_SetString(PyExc_TypeError, err_msg.c_str());
+        SWIG_fail;
+      }
+
+      auto type_name = As<std::string>(type.get().GetAttribute("__name__"));
+      if (!type_name) {
+        std::string err_msg = llvm::toString(type_name.takeError());
+        PyErr_SetString(PyExc_TypeError, err_msg.c_str());
+        SWIG_fail;
+      }
+
+      if (llvm::StringRef(type_name.get()).startswith("SB")) {
+        std::string error_msg = "Input type is invalid: " + type_name.get();
+        PyErr_SetString(PyExc_TypeError, error_msg.c_str());
+        SWIG_fail;
+      } else {
+        $1 = obj.get();
+      }
+    }
+  }
+}
+
+%typemap(out) lldb::ScriptObjectPtr {
+  $result = (PyObject*) $1;
+  if (!$result)
+    $result = Py_None;
+  Py_INCREF($result);
+}
+
+%typemap(out) lldb::SBScriptObject {
   $result = nullptr;
-  if (const void* impl = $1)
+  if (const void* impl = $1.GetPointer())
     $result = (PyObject*) impl;
   if (!$result) {
     $result = Py_None;