From acdda1344a0e1b45bd3ba7feb0e8cd398bee0179 Mon Sep 17 00:00:00 2001
From: Jonas Devlieghere <jonas@devlieghere.com>
Date: Sat, 21 Dec 2019 21:54:44 -0800
Subject: [PATCH] [lldb/Lua] Add missing boiler plate to ScriptInterpreter.

 - Fix enum entry order.
 - Fix missing enum case in CommandObjectBreakpointCommand.
 - Add Lua entry to swtich in LanguageToString and simplify the code.
---
 lldb/include/lldb/lldb-enumerations.h         |  6 ++---
 .../CommandObjectBreakpointCommand.cpp        |  1 +
 lldb/source/Interpreter/ScriptInterpreter.cpp | 24 ++++++++-----------
 3 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/lldb/include/lldb/lldb-enumerations.h b/lldb/include/lldb/lldb-enumerations.h
index 5640a16c8f44..dd3d9cc7da50 100644
--- a/lldb/include/lldb/lldb-enumerations.h
+++ b/lldb/include/lldb/lldb-enumerations.h
@@ -211,11 +211,11 @@ enum DescriptionLevel {
 
 /// Script interpreter types.
 enum ScriptLanguage {
-  eScriptLanguageNone,
+  eScriptLanguageNone = 0,
   eScriptLanguagePython,
   eScriptLanguageLua,
-  eScriptLanguageDefault = eScriptLanguagePython,
-  eScriptLanguageUnknown
+  eScriptLanguageUnknown,
+  eScriptLanguageDefault = eScriptLanguagePython
 };
 
 /// Register numbering types.
diff --git a/lldb/source/Commands/CommandObjectBreakpointCommand.cpp b/lldb/source/Commands/CommandObjectBreakpointCommand.cpp
index d62fe519eca5..551d0ac0081a 100644
--- a/lldb/source/Commands/CommandObjectBreakpointCommand.cpp
+++ b/lldb/source/Commands/CommandObjectBreakpointCommand.cpp
@@ -307,6 +307,7 @@ are no syntax errors may indicate that a function was declared but never called.
           m_use_script_language = true;
           break;
         case eScriptLanguageNone:
+        case eScriptLanguageUnknown:
           m_use_script_language = false;
           break;
         }
diff --git a/lldb/source/Interpreter/ScriptInterpreter.cpp b/lldb/source/Interpreter/ScriptInterpreter.cpp
index fd47aed6dcf6..552661ef80ee 100644
--- a/lldb/source/Interpreter/ScriptInterpreter.cpp
+++ b/lldb/source/Interpreter/ScriptInterpreter.cpp
@@ -43,21 +43,16 @@ void ScriptInterpreter::CollectDataForWatchpointCommandCallback(
 }
 
 std::string ScriptInterpreter::LanguageToString(lldb::ScriptLanguage language) {
-  std::string return_value;
-
   switch (language) {
   case eScriptLanguageNone:
-    return_value = "None";
-    break;
+    return "None";
   case eScriptLanguagePython:
-    return_value = "Python";
-    break;
+    return "Python";
+  case eScriptLanguageLua:
+    return "Lua";
   case eScriptLanguageUnknown:
-    return_value = "Unknown";
-    break;
+    return "Unknown";
   }
-
-  return return_value;
 }
 
 lldb::ScriptLanguage
@@ -66,6 +61,8 @@ ScriptInterpreter::StringToLanguage(const llvm::StringRef &language) {
     return eScriptLanguageNone;
   if (language.equals_lower(LanguageToString(eScriptLanguagePython)))
     return eScriptLanguagePython;
+  if (language.equals_lower(LanguageToString(eScriptLanguageLua)))
+    return eScriptLanguageLua;
   return eScriptLanguageUnknown;
 }
 
@@ -82,13 +79,12 @@ Status ScriptInterpreter::SetBreakpointCommandCallback(
 }
 
 Status ScriptInterpreter::SetBreakpointCommandCallbackFunction(
-    std::vector<BreakpointOptions *> &bp_options_vec,
-    const char *function_name,
+    std::vector<BreakpointOptions *> &bp_options_vec, const char *function_name,
     StructuredData::ObjectSP extra_args_sp) {
   Status error;
   for (BreakpointOptions *bp_options : bp_options_vec) {
-    error = SetBreakpointCommandCallbackFunction(bp_options, function_name, 
-                                         extra_args_sp);
+    error = SetBreakpointCommandCallbackFunction(bp_options, function_name,
+                                                 extra_args_sp);
     if (!error.Success())
       return error;
   }