Add the ability for Script based commands to specify their "repeat command" (#94823)

Among other things, returning an empty string as the repeat command
disables auto-repeat, which can be useful for state-changing commands.

There's one remaining refinement to this setup, which is that for parsed
script commands, it should be possible to change an option value, or add
a new option value that wasn't originally specified, then ask lldb "make
this back into a command string". That would make doing fancy things
with repeat commands easier.

That capability isn't present in the lldb_private side either, however.
So that's for a next iteration.

I haven't added this to the docs on adding commands yet. I wanted to
make sure this was an acceptable approach before I spend the time to do
that.

1 files changed, 6 insertions, 3 deletions

diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
index fa23540..c2024ef 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h
@@ -160,13 +160,16 @@ public:
       lldb_private::CommandReturnObject &cmd_retobj, Status &error,
       const lldb_private::ExecutionContext &exe_ctx) override;
 
-    virtual bool RunScriptBasedParsedCommand(
-      StructuredData::GenericSP impl_obj_sp, Args& args,
+  bool RunScriptBasedParsedCommand(
+      StructuredData::GenericSP impl_obj_sp, Args &args,
       ScriptedCommandSynchronicity synchronicity,
       lldb_private::CommandReturnObject &cmd_retobj, Status &error,
       const lldb_private::ExecutionContext &exe_ctx) override;
 
-  
+  std::optional<std::string>
+  GetRepeatCommandForScriptedCommand(StructuredData::GenericSP impl_obj_sp,
+                                     Args &args) override;
+
   Status GenerateFunction(const char *signature, const StringList &input,
                           bool is_callback) override;