Support Float64Arrays

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index b7e2fdd8fa1fc713c73bc6cbff32208d2d3ab35d..ac5e2045fb0720c9dd66386fdd488904d6247315 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -114,6 +114,9 @@ void HeapObject::HeapObjectPrint(FILE* out) {
     case EXTERNAL_FLOAT_ARRAY_TYPE:
       ExternalFloatArray::cast(this)->ExternalFloatArrayPrint(out);
       break;
+    case EXTERNAL_DOUBLE_ARRAY_TYPE:
+      ExternalDoubleArray::cast(this)->ExternalDoubleArrayPrint(out);
+      break;
     case FILLER_TYPE:
       PrintF(out, "filler");
       break;
@@ -217,6 +220,11 @@ void ExternalFloatArray::ExternalFloatArrayPrint(FILE* out) {
 }
 
 
+void ExternalDoubleArray::ExternalDoubleArrayPrint(FILE* out) {
+  PrintF(out, "external double array");
+}
+
+
 void JSObject::PrintProperties(FILE* out) {
   if (HasFastProperties()) {
     DescriptorArray* descs = map()->instance_descriptors();
@@ -330,6 +338,13 @@ void JSObject::PrintElements(FILE* out) {
       }
       break;
     }
+    case EXTERNAL_DOUBLE_ELEMENTS: {
+      ExternalDoubleArray* p = ExternalDoubleArray::cast(elements());
+      for (int i = 0; i < p->length(); i++) {
+        PrintF(out, "  %d: %f\n", i, p->get(i));
+      }
+      break;
+    }
     case DICTIONARY_ELEMENTS:
       elements()->Print(out);
       break;
@@ -383,6 +398,7 @@ static const char* TypeToString(InstanceType type) {
     case EXTERNAL_UNSIGNED_INT_ARRAY_TYPE:
       return "EXTERNAL_UNSIGNED_INT_ARRAY";
     case EXTERNAL_FLOAT_ARRAY_TYPE: return "EXTERNAL_FLOAT_ARRAY";
+    case EXTERNAL_DOUBLE_ARRAY_TYPE: return "EXTERNAL_DOUBLE_ARRAY";
     case FILLER_TYPE: return "FILLER";
     case JS_OBJECT_TYPE: return "JS_OBJECT";
     case JS_CONTEXT_EXTENSION_OBJECT_TYPE: return "JS_CONTEXT_EXTENSION_OBJECT";