Major rework of vm service events.

runtime/vm/service_event.cc

+// Copyright (c) 2015, 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 "vm/service_event.h"
+
+namespace dart {
+
+// Translate from the legacy DebugEvent to a ServiceEvent.
+static ServiceEvent::EventType TranslateEventType(
+    DebuggerEvent::EventType type) {
+    switch (type) {
+      case DebuggerEvent::kIsolateCreated:
+        return ServiceEvent::kIsolateStart;
+
+      case DebuggerEvent::kIsolateShutdown:
+        return ServiceEvent::kIsolateExit;
+
+      case DebuggerEvent::kBreakpointReached:
+        return ServiceEvent::kPauseBreakpoint;
+
+      case DebuggerEvent::kIsolateInterrupted:
+        return ServiceEvent::kPauseInterrupted;
+
+      case DebuggerEvent::kExceptionThrown:
+        return ServiceEvent::kPauseException;
+
+      default:
+        UNREACHABLE();
+        return ServiceEvent::kIllegal;
+    }
+}
+
+ServiceEvent::ServiceEvent(const DebuggerEvent* debugger_event)
+    : isolate_(debugger_event->isolate()),
+      type_(TranslateEventType(debugger_event->type())),
+      breakpoint_(NULL),
+      top_frame_(NULL),
+      exception_(NULL) {
+  DebuggerEvent::EventType type = debugger_event->type();
+  if (type == DebuggerEvent::kBreakpointReached) {
+    set_breakpoint(debugger_event->breakpoint());
+  }
+  if (type == DebuggerEvent::kExceptionThrown) {
+    set_exception(debugger_event->exception());
+  }
+  if (type == DebuggerEvent::kBreakpointReached ||
+      type == DebuggerEvent::kIsolateInterrupted ||
+      type == DebuggerEvent::kExceptionThrown) {
+    set_top_frame(debugger_event->top_frame());
+  }
+}
+
+
+const char* ServiceEvent::EventTypeToCString(EventType type) {
+  switch (type) {
+    case kIsolateStart:
+      return "IsolateStart";
+    case kIsolateExit:
+      return "IsolateExit";
+    case kPauseStart:
+      return "PauseStart";
+    case kPauseExit:
+      return "PauseExit";
+    case kPauseBreakpoint:
+      return "PauseBreakpoint";
+    case kPauseInterrupted:
+      return "PauseInterrupted";
+    case kPauseException:
+      return "PauseException";
+    case kResume:
+      return "Resume";
+    case kBreakpointAdded:
+      return "BreakpointAdded";
+    case kBreakpointResolved:
+      return "BreakpointResolved";
+    case kBreakpointRemoved:
+      return "BreakpointRemoved";
+    default:
+      UNREACHABLE();
+      return "Unknown";
+  }
+}
+
+
+void ServiceEvent::PrintJSON(JSONStream* js) const {
+  JSONObject jsobj(js);
+  jsobj.AddProperty("type", "ServiceEvent");
+  jsobj.AddProperty("eventType", EventTypeToCString(type()));
+  jsobj.AddProperty("isolate", isolate());
+  if (breakpoint() != NULL) {
+    jsobj.AddProperty("breakpoint", breakpoint());
+  }
+  if (top_frame() != NULL) {
+    JSONObject jsFrame(&jsobj, "topFrame");
+    top_frame()->PrintToJSONObject(&jsFrame);
+  }
+  if (exception() != NULL) {
+    jsobj.AddProperty("exception", *(exception()));
+  }
+}
+
+}  // namespace dart