Very first steps for a debugger

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
===================================================================
--- runtime/vm/dart_api_impl.cc	(revision 1899)
+++ runtime/vm/dart_api_impl.cc	(working copy)
@@ -11,6 +11,7 @@
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
 #include "vm/dart_entry.h"
+#include "vm/debugger.h"
 #include "vm/debuginfo.h"
 #include "vm/exceptions.h"
 #include "vm/growable_array.h"
@@ -1563,6 +1564,7 @@
   LongJump jump;
   isolate->set_long_jump_base(&jump);
   if (setjmp(*jump.Set()) == 0) {
+    isolate->debugger()->Initialize(isolate);

[siva, 2011/11/30 00:00:47]

Why do we have to wait until InvokeStatic is called to initialize the debugger,
why not do it as part of isolate initialization.

[hausner, 2011/11/30 01:17:05]

Because I need to wait until all the code is loaded in the isolate before I can
set a breakpoint. I could initialize the debugger sooner, but processing the
command line option to set the breakpoint would still have to be done at this
point.

     const Array& kNoArgumentNames = Array::Handle();
     const Instance& retval = Instance::Handle(
         DartEntry::InvokeStatic(function, args, kNoArgumentNames));