[lldb][NFC] Make cmd a reference in GenerateOptionUsage

Nowhere in lldb do we call this with a null pointer.
If we did, the first line of the function would fault anyway.

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D125218

diff --git a/lldb/include/lldb/Interpreter/Options.h b/lldb/include/lldb/Interpreter/Options.h
index 5899a9e..a952d5f 100644 (file)
--- a/lldb/include/lldb/Interpreter/Options.h
+++ b/lldb/include/lldb/Interpreter/Options.h
@@ -86,7 +86,7 @@ public:
                                 const OptionDefinition &option_def,
                                 uint32_t output_max_columns);
 
-  void GenerateOptionUsage(Stream &strm, CommandObject *cmd,
+  void GenerateOptionUsage(Stream &strm, CommandObject &cmd,
                            uint32_t screen_width);
 
   bool SupportsLongOption(const char *long_option);

diff --git a/lldb/source/Commands/CommandObjectDisassemble.cpp b/lldb/source/Commands/CommandObjectDisassemble.cpp
index b02e071..9d081c8 100644 (file)
--- a/lldb/source/Commands/CommandObjectDisassemble.cpp
+++ b/lldb/source/Commands/CommandObjectDisassemble.cpp
@@ -474,7 +474,7 @@ bool CommandObjectDisassemble::DoExecute(Args &command,
         "\"disassemble\" arguments are specified as options.\n");
     const int terminal_width =
         GetCommandInterpreter().GetDebugger().GetTerminalWidth();
-    GetOptions()->GenerateOptionUsage(result.GetErrorStream(), this,
+    GetOptions()->GenerateOptionUsage(result.GetErrorStream(), *this,
                                       terminal_width);
     return false;
   }

diff --git a/lldb/source/Commands/CommandObjectFrame.cpp b/lldb/source/Commands/CommandObjectFrame.cpp
index 2a1cef7..0e6ddfa 100644 (file)
--- a/lldb/source/Commands/CommandObjectFrame.cpp
+++ b/lldb/source/Commands/CommandObjectFrame.cpp
@@ -348,7 +348,7 @@ protected:
             "too many arguments; expected frame-index, saw '%s'.\n",
             command[0].c_str());
         m_options.GenerateOptionUsage(
-            result.GetErrorStream(), this,
+            result.GetErrorStream(), *this,
             GetCommandInterpreter().GetDebugger().GetTerminalWidth());
         return false;
       }

diff --git a/lldb/source/Commands/CommandObjectTarget.cpp b/lldb/source/Commands/CommandObjectTarget.cpp
index c3376d0..f42588b 100644 (file)
--- a/lldb/source/Commands/CommandObjectTarget.cpp
+++ b/lldb/source/Commands/CommandObjectTarget.cpp
@@ -3815,7 +3815,7 @@ public:
 
     default:
       m_options.GenerateOptionUsage(
-          result.GetErrorStream(), this,
+          result.GetErrorStream(), *this,
           GetCommandInterpreter().GetDebugger().GetTerminalWidth());
       syntax_error = true;
       break;

diff --git a/lldb/source/Interpreter/CommandObject.cpp b/lldb/source/Interpreter/CommandObject.cpp
index dcae27f..b38bf86 100644 (file)
--- a/lldb/source/Interpreter/CommandObject.cpp
+++ b/lldb/source/Interpreter/CommandObject.cpp
@@ -132,7 +132,7 @@ bool CommandObject::ParseOptions(Args &args, CommandReturnObject &result) {
       } else {
         // No error string, output the usage information into result
         options->GenerateOptionUsage(
-            result.GetErrorStream(), this,
+            result.GetErrorStream(), *this,
             GetCommandInterpreter().GetDebugger().GetTerminalWidth());
       }
     }
@@ -326,7 +326,7 @@ bool CommandObject::HelpTextContainsWord(llvm::StringRef search_word,
   if (!found_word && search_options && GetOptions() != nullptr) {
     StreamString usage_help;
     GetOptions()->GenerateOptionUsage(
-        usage_help, this,
+        usage_help, *this,
         GetCommandInterpreter().GetDebugger().GetTerminalWidth());
     if (!usage_help.Empty()) {
       llvm::StringRef usage_text = usage_help.GetString();
@@ -863,7 +863,7 @@ void CommandObject::GenerateHelpText(Stream &output_strm) {
   Options *options = GetOptions();
   if (options != nullptr) {
     options->GenerateOptionUsage(
-        output_strm, this,
+        output_strm, *this,
         GetCommandInterpreter().GetDebugger().GetTerminalWidth());
   }
   llvm::StringRef long_help = GetHelpLong();

diff --git a/lldb/source/Interpreter/Options.cpp b/lldb/source/Interpreter/Options.cpp
index 7d1f766..5957f46 100644 (file)
--- a/lldb/source/Interpreter/Options.cpp
+++ b/lldb/source/Interpreter/Options.cpp
@@ -388,21 +388,15 @@ static bool PrintOption(const OptionDefinition &opt_def,
   return true;
 }
 
-void Options::GenerateOptionUsage(Stream &strm, CommandObject *cmd,
+void Options::GenerateOptionUsage(Stream &strm, CommandObject &cmd,
                                   uint32_t screen_width) {
-  const bool only_print_args = cmd->IsDashDashCommand();
+  const bool only_print_args = cmd.IsDashDashCommand();
 
   auto opt_defs = GetDefinitions();
   const uint32_t save_indent_level = strm.GetIndentLevel();
-  llvm::StringRef name;
-
+  llvm::StringRef name = cmd.GetCommandName();
   StreamString arguments_str;
-
-  if (cmd) {
-    name = cmd->GetCommandName();
-    cmd->GetFormattedCommandArguments(arguments_str);
-  } else
-    name = "";
+  cmd.GetFormattedCommandArguments(arguments_str);
 
   const uint32_t num_options = NumCommandOptions();
   if (num_options == 0)
@@ -432,8 +426,7 @@ void Options::GenerateOptionUsage(Stream &strm, CommandObject *cmd,
 
       // Different option sets may require different args.
       StreamString args_str;
-      if (cmd)
-        cmd->GetFormattedCommandArguments(args_str, opt_set_mask);
+      cmd.GetFormattedCommandArguments(args_str, opt_set_mask);
 
       // First go through and print all options that take no arguments as a
       // single string. If a command has "-a" "-b" and "-c", this will show up
@@ -482,7 +475,7 @@ void Options::GenerateOptionUsage(Stream &strm, CommandObject *cmd,
       }
 
       if (args_str.GetSize() > 0) {
-        if (cmd->WantsRawCommandString() && !only_print_args)
+        if (cmd.WantsRawCommandString() && !only_print_args)
           strm.Printf(" --");
 
         strm << " " << args_str.GetString();
@@ -492,7 +485,7 @@ void Options::GenerateOptionUsage(Stream &strm, CommandObject *cmd,
     }
   }
 
-  if (cmd && (only_print_args || cmd->WantsRawCommandString()) &&
+  if ((only_print_args || cmd.WantsRawCommandString()) &&
       arguments_str.GetSize() > 0) {
     if (!only_print_args)
       strm.PutChar('\n');