Debugger break on TypeError, AssertionError

runtime/vm/debugger_api_impl.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_debugger_api.h"
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
 #include "vm/debugger.h"
 #include "vm/isolate.h"
@@ skipping 88 matching lines @@
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   BreakpointHandler* handler =
       reinterpret_cast<BreakpointHandler*>(bp_handler);
 
   isolate->debugger()->SetBreakpointHandler(handler);
 }
 
 
 static Dart_BreakpointResolvedHandler* bp_resolved_handler = NULL;
+static Dart_ExceptionThrownHandler* exc_thrown_handler = NULL;
 
 static void DebuggerEventHandler(Debugger::DebuggerEvent* event) {
   Isolate* isolate = Isolate::Current();
   ASSERT(isolate != NULL);
   if (event->type == Debugger::kBreakpointResolved) {
     if (bp_resolved_handler == NULL) {
       return;
     }
     SourceBreakpoint* bpt = event->breakpoint;
     ASSERT(bpt != NULL);
     Dart_Handle url = Api::NewHandle(isolate, bpt->SourceUrl());
     (*bp_resolved_handler)(bpt->id(), url, bpt->LineNumber());
+  } else if (event->type == Debugger::kExceptionThrown) {
+    if (exc_thrown_handler == NULL) {
+      return;
+    }
+    Dart_Handle exception = Api::NewHandle(isolate, event->exception->raw());
+    Dart_StackTrace trace =
+        reinterpret_cast<Dart_StackTrace>(isolate->debugger()->StackTrace());
+    (*exc_thrown_handler)(exception, trace);
   } else {
     UNIMPLEMENTED();
   }
 }
 
 
 DART_EXPORT void Dart_SetBreakpointResolvedHandler(
                             Dart_BreakpointResolvedHandler handler) {
   bp_resolved_handler = handler;
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   isolate->debugger()->SetEventHandler(DebuggerEventHandler);
 }
 
 
+DART_EXPORT void Dart_SetExceptionThrownHandler(
+                            Dart_ExceptionThrownHandler handler) {
+  exc_thrown_handler = handler;
+  Isolate* isolate = Isolate::Current();
+  DARTSCOPE(isolate);
+  isolate->debugger()->SetEventHandler(DebuggerEventHandler);
+}
+
+
 DART_EXPORT Dart_Handle Dart_GetStackTrace(Dart_StackTrace* trace) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   CHECK_NOT_NULL(trace);
   *trace = reinterpret_cast<Dart_StackTrace>(isolate->debugger()->StackTrace());
   return Api::True(isolate);
 }
 
 
 DART_EXPORT Dart_Handle Dart_ActivationFrameInfo(
@@ skipping 464 matching lines @@
   for (int i = 0; i < num_libs; i++) {
     lib ^= libs.At(i);
     ASSERT(!lib.IsNull());
     lib_url = lib.url();
     library_url_list.SetAt(i, lib_url);
   }
   return Api::NewHandle(isolate, library_url_list.raw());
 }
 
 }  // namespace dart