Added command line debugger to D8 shell....

src/d8.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 11 matching lines @@
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 #include <stdlib.h>
 
 #include "d8.h"
+#include "d8-debug.h"
 #include "debug.h"
 #include "api.h"
 #include "natives.h"
 
 
 namespace v8 {
 
 
 const char* Shell::kHistoryFileName = ".d8_history";
 const char* Shell::kPrompt = "d8> ";
@@ skipping 49 matching lines @@
 Persistent<Context> Shell::evaluation_context_;
 
 
 // Executes a string within the current v8 context.
 bool Shell::ExecuteString(Handle<String> source,
                           Handle<Value> name,
                           bool print_result,
                           bool report_exceptions) {
   HandleScope handle_scope;
   TryCatch try_catch;
+  if (i::FLAG_debugger) {
+    // When debugging make exceptions appear to be uncaught.
+    try_catch.SetVerbose(true);
+  }
   Handle<Script> script = Script::Compile(source, name);
   if (script.IsEmpty()) {
     // Print errors that happened during compilation.
     if (report_exceptions)
       ReportException(&try_catch);
     return false;
   } else {
     Handle<Value> result = script->Run();
     if (result.IsEmpty()) {
       // Print errors that happened during execution.
@@ skipping 94 matching lines @@
   Context::Scope context_scope(utility_context_);
   Handle<Object> global = utility_context_->Global();
   Handle<Value> fun = global->Get(String::New("GetCompletions"));
   static const int kArgc = 3;
   Handle<Value> argv[kArgc] = { evaluation_context_->Global(), text, full };
   Handle<Value> val = Handle<Function>::Cast(fun)->Call(global, kArgc, argv);
   return handle_scope.Close(Handle<Array>::Cast(val));
 }
 
 
+Handle<String> Shell::DebugEventToText(Handle<Object> event) {
+  HandleScope handle_scope;
+  Context::Scope context_scope(utility_context_);
+  Handle<Object> global = utility_context_->Global();
+  Handle<Value> fun = global->Get(String::New("DebugEventToText"));
+  TryCatch try_catch;
+  try_catch.SetVerbose(true);
+  static const int kArgc = 1;
+  Handle<Value> argv[kArgc] = { event };
+  Handle<Value> val = Handle<Function>::Cast(fun)->Call(global, kArgc, argv);
+  if (try_catch.HasCaught()) {
+    return handle_scope.Close(try_catch.Exception()->ToString());
+  } else {
+    return handle_scope.Close(Handle<String>::Cast(val));
+  }
+}
+
+
+Handle<Value> Shell::DebugCommandToJSONRequest(Handle<String> command) {
+  Context::Scope context_scope(utility_context_);
+  Handle<Object> global = utility_context_->Global();
+  Handle<Value> fun = global->Get(String::New("DebugCommandToJSONRequest"));
+  static const int kArgc = 1;
+  Handle<Value> argv[kArgc] = { command };
+  Handle<Value> val = Handle<Function>::Cast(fun)->Call(global, kArgc, argv);
+  return val;
+}
+
+
+Handle<Object> Shell::DebugResponseDetails(Handle<String> response) {
+  Context::Scope context_scope(utility_context_);
+  Handle<Object> global = utility_context_->Global();
+  Handle<Value> fun = global->Get(String::New("DebugResponseDetails"));
+  static const int kArgc = 1;
+  Handle<Value> argv[kArgc] = { response };
+  Handle<Value> val = Handle<Function>::Cast(fun)->Call(global, kArgc, argv);
+  return Handle<Object>::Cast(val);
+}
+
+
 int32_t* Counter::Bind(const char* name) {
   int i;
   for (i = 0; i < kMaxNameSize - 1 && name[i]; i++)
     name_[i] = static_cast<char>(name[i]);
   name_[i] = '\0';
   return &counter_;
 }
 
 
 CounterCollection::CounterCollection() {
@@ skipping 183 matching lines @@
       Handle<String> file_name = v8::String::New(str);
       Handle<String> source = ReadFile(str);
       if (source.IsEmpty()) {
         printf("Error reading '%s'\n", str);
         return 1;
       }
       if (!ExecuteString(source, file_name, false, true))
         return 1;
     }
   }
+  if (i::FLAG_debugger)
+    v8::Debug::AddDebugEventListener(HandleDebugEvent);
   if (run_shell)
     RunShell();
   OnExit();
   return 0;
 }
 
 
 }  // namespace v8
 
 
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }