Created methods to surface zone memory information for each isolate and thread in JSON.

runtime/vm/json_stream.cc

 // Copyright (c) 2013, 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 "platform/assert.h"
 
 #include "include/dart_native_api.h"
 #include "vm/dart_entry.h"
 #include "vm/debugger.h"
 #include "vm/json_stream.h"
 #include "vm/message.h"
 #include "vm/metrics.h"
 #include "vm/object.h"
 #include "vm/safepoint.h"
 #include "vm/service.h"
 #include "vm/service_event.h"
+#include "vm/thread_registry.h"
 #include "vm/timeline.h"
 #include "vm/unicode.h"
 
 
 namespace dart {
 
 #ifndef PRODUCT
 
 void AppendJSONStreamConsumer(Dart_StreamConsumer_State state,
                               const char* stream_name,
@@ skipping 506 matching lines @@
   queue->PrintJSON(this);
 }
 
 
 void JSONStream::PrintValue(Isolate* isolate, bool ref) {
   PrintCommaIfNeeded();
   isolate->PrintJSON(this, ref);
 }
 
 
+void JSONStream::PrintValue(ThreadRegistry* reg) {
+  PrintCommaIfNeeded();
+  reg->PrintJSON(this);
+}
+
+
+void JSONStream::PrintValue(Thread* thread) {
+  PrintCommaIfNeeded();
+  thread->PrintJSON(this);
+}
+

[zra, 2016/12/08 18:54:13]

Please keep two newlines between functions in source files.

[bkonyi, 2016/12/08 20:58:32]

Done.

+void JSONStream::PrintValue(Zone* zone) {
+  PrintCommaIfNeeded();
+  zone->PrintJSON(this);
+}
+

[zra, 2016/12/08 18:54:13]

ditto

[bkonyi, 2016/12/08 20:58:32]

Done.

 void JSONStream::PrintValue(const TimelineEvent* timeline_event) {
   PrintCommaIfNeeded();
   timeline_event->PrintJSON(this);
 }
 
 
 void JSONStream::PrintValue(const TimelineEventBlock* timeline_event_block) {
   PrintCommaIfNeeded();
   timeline_event_block->PrintJSON(this);
 }
@@ skipping 103 matching lines @@
   PrintValue(queue);
 }
 
 
 void JSONStream::PrintProperty(const char* name, Isolate* isolate) {
   PrintPropertyName(name);
   PrintValue(isolate);
 }
 
 
+void JSONStream::PrintProperty(const char* name, ThreadRegistry* reg) {
+  PrintPropertyName(name);
+  PrintValue(reg);
+}
+
+
+void JSONStream::PrintProperty(const char* name, Thread* thread) {
+  PrintPropertyName(name);
+  PrintValue(thread);
+}
+
+
+void JSONStream::PrintProperty(const char* name, Zone* zone) {
+  PrintPropertyName(name);
+  PrintValue(zone);
+}
+
+
 void JSONStream::PrintProperty(const char* name,
                                const TimelineEvent* timeline_event) {
   PrintPropertyName(name);
   PrintValue(timeline_event);
 }
 
 
 void JSONStream::PrintProperty(const char* name,
                                const TimelineEventBlock* timeline_event_block) {
   PrintPropertyName(name);
@@ skipping 309 matching lines @@
   ASSERT(len == len2);
   stream_->buffer_.AddChar('"');
   stream_->AddEscapedUTF8String(p);
   stream_->buffer_.AddChar('"');
   free(p);
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart