Merging the iohandler branch back into main.

The many many benefits include:
1 - Input/Output/Error streams are now handled as real streams not a push style input
2 - auto completion in python embedded interpreter
3 - multi-line input for "script" and "expression" commands now allow you to edit previous/next lines using up and down arrow keys and this makes multi-line input actually a viable thing to use
4 - it is now possible to use curses to drive LLDB (please try the "gui" command)

We will need to deal with and fix any buildbot failures and tests and arise now that input/output and error are correctly hooked up in all cases.

llvm-svn: 200263

1 files changed, 56 insertions, 0 deletions

diff --git a/lldb/source/Commands/CommandObjectGUI.cpp b/lldb/source/Commands/CommandObjectGUI.cpp
new file mode 100644
index 00000000000..0fe6cdcd8b0
--- /dev/null
+++ b/lldb/source/Commands/CommandObjectGUI.cpp
@@ -0,0 +1,56 @@
+//===-- CommandObjectGUI.cpp ------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/lldb-python.h"
+
+#include "CommandObjectGUI.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-private.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/CommandReturnObject.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+//-------------------------------------------------------------------------
+// CommandObjectGUI
+//-------------------------------------------------------------------------
+
+CommandObjectGUI::CommandObjectGUI (CommandInterpreter &interpreter) :
+    CommandObjectParsed (interpreter, "gui", "Switch into the curses based GUI mode.", "gui")
+{
+}
+
+CommandObjectGUI::~CommandObjectGUI ()
+{
+}
+
+bool
+CommandObjectGUI::DoExecute (Args& args, CommandReturnObject &result)
+{
+    if (args.GetArgumentCount() == 0)
+    {
+        Debugger &debugger = m_interpreter.GetDebugger();
+        IOHandlerSP io_handler_sp (new IOHandlerCursesGUI (debugger));
+        if (io_handler_sp)
+            debugger.PushIOHandler(io_handler_sp);
+        result.SetStatus (eReturnStatusSuccessFinishResult);
+    }
+    else
+    {
+        result.AppendError("the gui command takes no arguments.");
+        result.SetStatus (eReturnStatusFailed);
+    }
+    return true;
+}
+