[ScriptInterpreter] Pass the debugger instead of the command interpreter

As discussed in D61090, there's no good reason for the script
interpreter to depend on the command interpreter. When looking at the
code, it becomes clear that we mostly use the command interpreter as a
way to access the debugger. Hence, it makes more sense to just pass that
to the script interpreter directly.

This is part 1 out of 2. I have another patch in the pipeline that
changes the ownership of the script interpreter to the debugger as well,
but I didn't get around to finish that today.

Differential revision: https://reviews.llvm.org/D61172

llvm-svn: 359330

diff --git a/lldb/include/lldb/Core/PluginManager.h b/lldb/include/lldb/Core/PluginManager.h
index 37e287f..10185f3 100644 (file)
--- a/lldb/include/lldb/Core/PluginManager.h
+++ b/lldb/include/lldb/Core/PluginManager.h
@@ -263,7 +263,7 @@ public:
 
   static lldb::ScriptInterpreterSP
   GetScriptInterpreterForLanguage(lldb::ScriptLanguage script_lang,
-                                  CommandInterpreter &interpreter);
+                                  Debugger &debugger);
 
   // StructuredDataPlugin
 

diff --git a/lldb/include/lldb/Interpreter/ScriptInterpreter.h b/lldb/include/lldb/Interpreter/ScriptInterpreter.h
index 24188a7..aff4da4 100644 (file)
--- a/lldb/include/lldb/Interpreter/ScriptInterpreter.h
+++ b/lldb/include/lldb/Interpreter/ScriptInterpreter.h
@@ -52,8 +52,7 @@ public:
     eScriptReturnTypeOpaqueObject
   } ScriptReturnType;
 
-  ScriptInterpreter(CommandInterpreter &interpreter,
-                    lldb::ScriptLanguage script_lang);
+  ScriptInterpreter(Debugger &debugger, lldb::ScriptLanguage script_lang);
 
   ~ScriptInterpreter() override;
 
@@ -247,7 +246,7 @@ public:
                                    lldb::BreakpointSP &bkpt_sp) {
     return StructuredData::GenericSP();
   }
-  
+
   virtual bool
   ScriptedBreakpointResolverSearchCallback(StructuredData::GenericSP implementor_sp,
                                            SymbolContext *sym_ctx)
@@ -460,8 +459,6 @@ public:
 
   int GetMasterFileDescriptor();
 
-  CommandInterpreter &GetCommandInterpreter();
-
   static std::string LanguageToString(lldb::ScriptLanguage language);
 
   static lldb::ScriptLanguage StringToLanguage(const llvm::StringRef &string);
@@ -471,7 +468,7 @@ public:
   lldb::ScriptLanguage GetLanguage() { return m_script_lang; }
 
 protected:
-  CommandInterpreter &m_interpreter;
+  Debugger &m_debugger;
   lldb::ScriptLanguage m_script_lang;
 };
 

diff --git a/lldb/include/lldb/lldb-private-interfaces.h b/lldb/include/lldb/lldb-private-interfaces.h
index 2c76889..57b2567 100644 (file)
--- a/lldb/include/lldb/lldb-private-interfaces.h
+++ b/lldb/include/lldb/lldb-private-interfaces.h
@@ -66,7 +66,7 @@ typedef lldb::ProcessSP (*ProcessCreateInstance)(
     lldb::TargetSP target_sp, lldb::ListenerSP listener_sp,
     const FileSpec *crash_file_path);
 typedef lldb::ScriptInterpreterSP (*ScriptInterpreterCreateInstance)(
-    CommandInterpreter &interpreter);
+    Debugger &debugger);
 typedef SymbolFile *(*SymbolFileCreateInstance)(ObjectFile *obj_file);
 typedef SymbolVendor *(*SymbolVendorCreateInstance)(
     const lldb::ModuleSP &module_sp,

diff --git a/lldb/source/Core/PluginManager.cpp b/lldb/source/Core/PluginManager.cpp
index f69610c..cf940dd 100644 (file)
--- a/lldb/source/Core/PluginManager.cpp
+++ b/lldb/source/Core/PluginManager.cpp
@@ -1516,8 +1516,9 @@ PluginManager::GetScriptInterpreterCreateCallbackAtIndex(uint32_t idx) {
   return nullptr;
 }
 
-lldb::ScriptInterpreterSP PluginManager::GetScriptInterpreterForLanguage(
-    lldb::ScriptLanguage script_lang, CommandInterpreter &interpreter) {
+lldb::ScriptInterpreterSP
+PluginManager::GetScriptInterpreterForLanguage(lldb::ScriptLanguage script_lang,
+                                               Debugger &debugger) {
   std::lock_guard<std::recursive_mutex> guard(GetScriptInterpreterMutex());
   ScriptInterpreterInstances &instances = GetScriptInterpreterInstances();
 
@@ -1528,12 +1529,12 @@ lldb::ScriptInterpreterSP PluginManager::GetScriptInterpreterForLanguage(
       none_instance = pos->create_callback;
 
     if (script_lang == pos->language)
-      return pos->create_callback(interpreter);
+      return pos->create_callback(debugger);
   }
 
   // If we didn't find one, return the ScriptInterpreter for the null language.
   assert(none_instance != nullptr);
-  return none_instance(interpreter);
+  return none_instance(debugger);
 }
 
 #pragma mark -

diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp b/lldb/source/Interpreter/CommandInterpreter.cpp
index 7824123..8470715 100644 (file)
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -2507,7 +2507,7 @@ ScriptInterpreter *CommandInterpreter::GetScriptInterpreter(bool can_create) {
       return nullptr;
     lldb::ScriptLanguage script_lang = GetDebugger().GetScriptLanguage();
     m_script_interpreter_sp =
-        PluginManager::GetScriptInterpreterForLanguage(script_lang, *this);
+        PluginManager::GetScriptInterpreterForLanguage(script_lang, m_debugger);
   }
   return m_script_interpreter_sp.get();
 }

diff --git a/lldb/source/Interpreter/ScriptInterpreter.cpp b/lldb/source/Interpreter/ScriptInterpreter.cpp
index 52fd77e..d04baec 100644 (file)
--- a/lldb/source/Interpreter/ScriptInterpreter.cpp
+++ b/lldb/source/Interpreter/ScriptInterpreter.cpp
@@ -21,16 +21,12 @@
 using namespace lldb;
 using namespace lldb_private;
 
-ScriptInterpreter::ScriptInterpreter(CommandInterpreter &interpreter,
+ScriptInterpreter::ScriptInterpreter(Debugger &debugger,
                                      lldb::ScriptLanguage script_lang)
-    : m_interpreter(interpreter), m_script_lang(script_lang) {}
+    : m_debugger(debugger), m_script_lang(script_lang) {}
 
 ScriptInterpreter::~ScriptInterpreter() {}
 
-CommandInterpreter &ScriptInterpreter::GetCommandInterpreter() {
-  return m_interpreter;
-}
-
 void ScriptInterpreter::CollectDataForBreakpointCommandCallback(
     std::vector<BreakpointOptions *> &bp_options_vec,
     CommandReturnObject &result) {

diff --git a/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.cpp b/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.cpp
index 8129af0..7b95983 100644 (file)
--- a/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.cpp
@@ -10,7 +10,6 @@
 #include "lldb/Core/Debugger.h"
 #include "lldb/Core/PluginManager.h"
 #include "lldb/Core/StreamFile.h"
-#include "lldb/Interpreter/CommandInterpreter.h"
 #include "lldb/Utility/Stream.h"
 #include "lldb/Utility/StringList.h"
 
@@ -21,21 +20,21 @@
 using namespace lldb;
 using namespace lldb_private;
 
-ScriptInterpreterNone::ScriptInterpreterNone(CommandInterpreter &interpreter)
-    : ScriptInterpreter(interpreter, eScriptLanguageNone) {}
+ScriptInterpreterNone::ScriptInterpreterNone(Debugger &debugger)
+    : ScriptInterpreter(debugger, eScriptLanguageNone) {}
 
 ScriptInterpreterNone::~ScriptInterpreterNone() {}
 
 bool ScriptInterpreterNone::ExecuteOneLine(llvm::StringRef command,
                                            CommandReturnObject *,
                                            const ExecuteScriptOptions &) {
-  m_interpreter.GetDebugger().GetErrorFile()->PutCString(
+  m_debugger.GetErrorFile()->PutCString(
       "error: there is no embedded script interpreter in this mode.\n");
   return false;
 }
 
 void ScriptInterpreterNone::ExecuteInterpreterLoop() {
-  m_interpreter.GetDebugger().GetErrorFile()->PutCString(
+  m_debugger.GetErrorFile()->PutCString(
       "error: there is no embedded script interpreter in this mode.\n");
 }
 
@@ -52,8 +51,8 @@ void ScriptInterpreterNone::Initialize() {
 void ScriptInterpreterNone::Terminate() {}
 
 lldb::ScriptInterpreterSP
-ScriptInterpreterNone::CreateInstance(CommandInterpreter &interpreter) {
-  return std::make_shared<ScriptInterpreterNone>(interpreter);
+ScriptInterpreterNone::CreateInstance(Debugger &debugger) {
+  return std::make_shared<ScriptInterpreterNone>(debugger);
 }
 
 lldb_private::ConstString ScriptInterpreterNone::GetPluginNameStatic() {

diff --git a/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h b/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h
index 23a8473..242065c 100644 (file)
--- a/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h
+++ b/lldb/source/Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h
@@ -15,7 +15,7 @@ namespace lldb_private {
 
 class ScriptInterpreterNone : public ScriptInterpreter {
 public:
-  ScriptInterpreterNone(CommandInterpreter &interpreter);
+  ScriptInterpreterNone(Debugger &debugger);
 
   ~ScriptInterpreterNone() override;
 
@@ -30,8 +30,7 @@ public:
 
   static void Terminate();
 
-  static lldb::ScriptInterpreterSP
-  CreateInstance(CommandInterpreter &interpreter);
+  static lldb::ScriptInterpreterSP CreateInstance(Debugger &debugger);
 
   static lldb_private::ConstString GetPluginNameStatic();
 

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
index 0482cea..eabbdcc 100644 (file)
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -441,15 +441,13 @@ ScriptInterpreterPythonImpl::Locker::~Locker() {
   DoFreeLock();
 }
 
-ScriptInterpreterPythonImpl::ScriptInterpreterPythonImpl(
-    CommandInterpreter &interpreter)
-    : ScriptInterpreterPython(interpreter), m_saved_stdin(), m_saved_stdout(),
+ScriptInterpreterPythonImpl::ScriptInterpreterPythonImpl(Debugger &debugger)
+    : ScriptInterpreterPython(debugger), m_saved_stdin(), m_saved_stdout(),
       m_saved_stderr(), m_main_module(),
       m_session_dict(PyInitialValue::Invalid),
       m_sys_module_dict(PyInitialValue::Invalid), m_run_one_line_function(),
       m_run_one_line_str_global(),
-      m_dictionary_name(
-          interpreter.GetDebugger().GetInstanceName().AsCString()),
+      m_dictionary_name(m_debugger.GetInstanceName().AsCString()),
       m_terminal_state(), m_active_io_handler(eIOHandlerNone),
       m_session_is_active(false), m_pty_slave_is_open(false),
       m_valid_session(true), m_lock_count(0), m_command_thread_state(nullptr) {
@@ -495,8 +493,7 @@ ScriptInterpreterPythonImpl::ScriptInterpreterPythonImpl(
 
   run_string.Printf("run_one_line (%s, 'lldb.debugger_unique_id = %" PRIu64
                     "; pydoc.pager = pydoc.plainpager')",
-                    m_dictionary_name.c_str(),
-                    interpreter.GetDebugger().GetID());
+                    m_dictionary_name.c_str(), m_debugger.GetID());
   PyRun_SimpleString(run_string.GetData());
 }
 
@@ -549,7 +546,7 @@ def function (frame, bp_loc, internal_dict):
 void ScriptInterpreterPythonImpl::IOHandlerInputComplete(IOHandler &io_handler,
                                                          std::string &data) {
   io_handler.SetIsDone(true);
-  bool batch_mode = m_interpreter.GetBatchCommandMode();
+  bool batch_mode = m_debugger.GetCommandInterpreter().GetBatchCommandMode();
 
   switch (m_active_io_handler) {
   case eIOHandlerNone:
@@ -608,8 +605,8 @@ void ScriptInterpreterPythonImpl::IOHandlerInputComplete(IOHandler &io_handler,
 }
 
 lldb::ScriptInterpreterSP
-ScriptInterpreterPythonImpl::CreateInstance(CommandInterpreter &interpreter) {
-  return std::make_shared<ScriptInterpreterPythonImpl>(interpreter);
+ScriptInterpreterPythonImpl::CreateInstance(Debugger &debugger) {
+  return std::make_shared<ScriptInterpreterPythonImpl>(debugger);
 }
 
 void ScriptInterpreterPythonImpl::ResetOutputFileHandle(FILE *fh) {}
@@ -711,11 +708,10 @@ bool ScriptInterpreterPythonImpl::EnterSession(uint16_t on_entry_flags,
 
   if (on_entry_flags & Locker::InitGlobals) {
     run_string.Printf("run_one_line (%s, 'lldb.debugger_unique_id = %" PRIu64,
-                      m_dictionary_name.c_str(),
-                      GetCommandInterpreter().GetDebugger().GetID());
+                      m_dictionary_name.c_str(), m_debugger.GetID());
     run_string.Printf(
         "; lldb.debugger = lldb.SBDebugger.FindDebuggerWithID (%" PRIu64 ")",
-        GetCommandInterpreter().GetDebugger().GetID());
+        m_debugger.GetID());
     run_string.PutCString("; lldb.target = lldb.debugger.GetSelectedTarget()");
     run_string.PutCString("; lldb.process = lldb.target.GetProcess()");
     run_string.PutCString("; lldb.thread = lldb.process.GetSelectedThread ()");
@@ -725,11 +721,10 @@ bool ScriptInterpreterPythonImpl::EnterSession(uint16_t on_entry_flags,
     // If we aren't initing the globals, we should still always set the
     // debugger (since that is always unique.)
     run_string.Printf("run_one_line (%s, 'lldb.debugger_unique_id = %" PRIu64,
-                      m_dictionary_name.c_str(),
-                      GetCommandInterpreter().GetDebugger().GetID());
+                      m_dictionary_name.c_str(), m_debugger.GetID());
     run_string.Printf(
         "; lldb.debugger = lldb.SBDebugger.FindDebuggerWithID (%" PRIu64 ")",
-        GetCommandInterpreter().GetDebugger().GetID());
+        m_debugger.GetID());
     run_string.PutCString("')");
   }
 
@@ -746,8 +741,7 @@ bool ScriptInterpreterPythonImpl::EnterSession(uint16_t on_entry_flags,
     lldb::StreamFileSP out_sp;
     lldb::StreamFileSP err_sp;
     if (!in_file.IsValid() || !out_file.IsValid() || !err_file.IsValid())
-      m_interpreter.GetDebugger().AdoptTopIOHandlerFilesIfInvalid(in_sp, out_sp,
-                                                                  err_sp);
+      m_debugger.AdoptTopIOHandlerFilesIfInvalid(in_sp, out_sp, err_sp);
 
     if (on_entry_flags & Locker::NoSTDIN) {
       m_saved_stdin.Reset();
@@ -871,7 +865,7 @@ bool ScriptInterpreterPythonImpl::ExecuteOneLine(
     // another string to pass to PyRun_SimpleString messes up the escaping.  So
     // we use the following more complicated method to pass the command string
     // directly down to Python.
-    Debugger &debugger = m_interpreter.GetDebugger();
+    Debugger &debugger = m_debugger;
 
     StreamFileSP input_file_sp;
     StreamFileSP output_file_sp;
@@ -1018,7 +1012,7 @@ void ScriptInterpreterPythonImpl::ExecuteInterpreterLoop() {
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
   Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
 
-  Debugger &debugger = GetCommandInterpreter().GetDebugger();
+  Debugger &debugger = m_debugger;
 
   // At the moment, the only time the debugger does not have an input file
   // handle is when this is called directly from Python, in which case it is
@@ -1274,14 +1268,15 @@ void ScriptInterpreterPythonImpl::CollectDataForBreakpointCommandCallback(
     std::vector<BreakpointOptions *> &bp_options_vec,
     CommandReturnObject &result) {
   m_active_io_handler = eIOHandlerBreakpoint;
-  m_interpreter.GetPythonCommandsFromIOHandler("    ", *this, true,
-                                               &bp_options_vec);
+  m_debugger.GetCommandInterpreter().GetPythonCommandsFromIOHandler(
+      "    ", *this, true, &bp_options_vec);
 }
 
 void ScriptInterpreterPythonImpl::CollectDataForWatchpointCommandCallback(
     WatchpointOptions *wp_options, CommandReturnObject &result) {
   m_active_io_handler = eIOHandlerWatchpoint;
-  m_interpreter.GetPythonCommandsFromIOHandler("    ", *this, true, wp_options);
+  m_debugger.GetCommandInterpreter().GetPythonCommandsFromIOHandler(
+      "    ", *this, true, wp_options);
 }
 
 void ScriptInterpreterPythonImpl::SetBreakpointCommandCallbackFunction(
@@ -1290,8 +1285,9 @@ void ScriptInterpreterPythonImpl::SetBreakpointCommandCallbackFunction(
   std::string oneliner("return ");
   oneliner += function_name;
   oneliner += "(frame, bp_loc, internal_dict)";
-  m_interpreter.GetScriptInterpreter()->SetBreakpointCommandCallback(
-      bp_options, oneliner.c_str());
+  m_debugger.GetCommandInterpreter()
+      .GetScriptInterpreter()
+      ->SetBreakpointCommandCallback(bp_options, oneliner.c_str());
 }
 
 Status ScriptInterpreterPythonImpl::SetBreakpointCommandCallback(
@@ -2109,8 +2105,7 @@ ScriptInterpreterPythonImpl::CreateSyntheticScriptedProvider(
 
 StructuredData::GenericSP
 ScriptInterpreterPythonImpl::CreateScriptCommandObject(const char *class_name) {
-  DebuggerSP debugger_sp(
-      GetCommandInterpreter().GetDebugger().shared_from_this());
+  DebuggerSP debugger_sp(m_debugger.shared_from_this());
 
   if (class_name == nullptr || class_name[0] == '\0')
     return StructuredData::GenericSP();
@@ -2718,7 +2713,7 @@ bool ScriptInterpreterPythonImpl::LoadScriptingModule(
     return false;
   }
 
-  lldb::DebuggerSP debugger_sp = m_interpreter.GetDebugger().shared_from_this();
+  lldb::DebuggerSP debugger_sp = m_debugger.shared_from_this();
 
   {
     FileSpec target_file(pathname);
@@ -2912,7 +2907,7 @@ bool ScriptInterpreterPythonImpl::RunScriptBasedCommand(
     return false;
   }
 
-  lldb::DebuggerSP debugger_sp = m_interpreter.GetDebugger().shared_from_this();
+  lldb::DebuggerSP debugger_sp = m_debugger.shared_from_this();
   lldb::ExecutionContextRefSP exe_ctx_ref_sp(new ExecutionContextRef(exe_ctx));
 
   if (!debugger_sp.get()) {
@@ -2956,7 +2951,7 @@ bool ScriptInterpreterPythonImpl::RunScriptBasedCommand(
     return false;
   }
 
-  lldb::DebuggerSP debugger_sp = m_interpreter.GetDebugger().shared_from_this();
+  lldb::DebuggerSP debugger_sp = m_debugger.shared_from_this();
   lldb::ExecutionContextRefSP exe_ctx_ref_sp(new ExecutionContextRef(exe_ctx));
 
   if (!debugger_sp.get()) {

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
index 6a07be8..24941ec 100644 (file)
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h
@@ -36,8 +36,8 @@ public:
     }
   };
 
-  ScriptInterpreterPython(CommandInterpreter &interpreter)
-      : ScriptInterpreter(interpreter, lldb::eScriptLanguagePython),
+  ScriptInterpreterPython(Debugger &debugger)
+      : ScriptInterpreter(debugger, lldb::eScriptLanguagePython),
         IOHandlerDelegateMultiline("DONE") {}
 
   static void Initialize();

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
index 7a0cf74..a9993c4 100644 (file)
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
@@ -29,7 +29,7 @@ class ScriptInterpreterPythonImpl : public ScriptInterpreterPython {
 public:
   friend class IOHandlerPythonInterpreter;
 
-  ScriptInterpreterPythonImpl(CommandInterpreter &interpreter);
+  ScriptInterpreterPythonImpl(Debugger &debugger);
 
   ~ScriptInterpreterPythonImpl() override;
 
@@ -273,8 +273,7 @@ public:
   void IOHandlerInputComplete(IOHandler &io_handler,
                               std::string &data) override;
 
-  static lldb::ScriptInterpreterSP
-  CreateInstance(CommandInterpreter &interpreter);
+  static lldb::ScriptInterpreterSP CreateInstance(Debugger &debugger);
 
   // PluginInterface protocol
   lldb_private::ConstString GetPluginName() override;