[Reproducers] Capture and replay interpreter commands.

This patch adds the necessary logic to capture and replay commands
entered into the command interpreter. A DataRecorder shadows the input
and writes its data to a know file. During replay this file is used as
the command interpreter's input.

It's possible to the command interpreter more than once, with a
different input source. We support this scenario by using multiple
buffers. The synchronization for this takes place at the SB layer, where
we create a new recorder every time the debugger input is changed.
During replay we use the corresponding buffer as input.

Differential revision: https://reviews.llvm.org/D58564

llvm-svn: 355249

1 files changed, 10 insertions, 7 deletions

diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp b/lldb/source/Interpreter/CommandInterpreter.cpp
index 55b96af7208..cccaf3693f3 100644
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -2483,7 +2483,7 @@ void CommandInterpreter::HandleCommandsFromFile(
                // or written
       debugger.GetPrompt(), llvm::StringRef(),
       false, // Not multi-line
-      debugger.GetUseColor(), 0, *this));
+      debugger.GetUseColor(), 0, *this, nullptr));
   const bool old_async_execution = debugger.GetAsyncExecution();
 
   // Set synchronous execution if we are not stopping on continue
@@ -2905,8 +2905,9 @@ void CommandInterpreter::GetLLDBCommandsFromIOHandler(
                             llvm::StringRef(), // Continuation prompt
                             true,              // Get multiple lines
                             debugger.GetUseColor(),
-                            0,          // Don't show line numbers
-                            delegate)); // IOHandlerDelegate
+                            0,         // Don't show line numbers
+                            delegate,  // IOHandlerDelegate
+                            nullptr)); // FileShadowCollector
 
   if (io_handler_sp) {
     io_handler_sp->SetUserData(baton);
@@ -2928,8 +2929,9 @@ void CommandInterpreter::GetPythonCommandsFromIOHandler(
                             llvm::StringRef(), // Continuation prompt
                             true,              // Get multiple lines
                             debugger.GetUseColor(),
-                            0,          // Don't show line numbers
-                            delegate)); // IOHandlerDelegate
+                            0,         // Don't show line numbers
+                            delegate,  // IOHandlerDelegate
+                            nullptr)); // FileShadowCollector
 
   if (io_handler_sp) {
     io_handler_sp->SetUserData(baton);
@@ -2980,8 +2982,9 @@ CommandInterpreter::GetIOHandler(bool force_create,
         llvm::StringRef(), // Continuation prompt
         false, // Don't enable multiple line input, just single line commands
         m_debugger.GetUseColor(),
-        0, // Don't show line numbers
-        *this);
+        0,     // Don't show line numbers
+        *this, // IOHandlerDelegate
+        GetDebugger().GetInputRecorder());
   }
   return m_command_io_handler_sp;
 }