add object Printer for JSArrayIterator

src/objects-printer.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/objects.h"
 
 #include <iomanip>
 #include <memory>
 
 #include "src/disasm.h"
@@ skipping 85 matching lines @@
       break;
 
 #define PRINT_FIXED_TYPED_ARRAY(Type, type, TYPE, ctype, size) \
   case Fixed##Type##Array::kInstanceType:                      \
     Fixed##Type##Array::cast(this)->FixedTypedArrayPrint(os);  \
     break;
 
     TYPED_ARRAYS(PRINT_FIXED_TYPED_ARRAY)
 #undef PRINT_FIXED_TYPED_ARRAY
 
+    case JS_TYPED_ARRAY_KEY_ITERATOR_TYPE:
+    case JS_FAST_ARRAY_KEY_ITERATOR_TYPE:
+    case JS_GENERIC_ARRAY_KEY_ITERATOR_TYPE:
+    case JS_INT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_INT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_INT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT64_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_CLAMPED_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_GENERIC_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_INT8_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_INT16_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT16_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_INT32_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT32_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT32_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT64_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_CLAMPED_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_SMI_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_SMI_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_GENERIC_ARRAY_VALUE_ITERATOR_TYPE:
+      JSArrayIterator::cast(this)->JSArrayIteratorPrint(os);
+      break;
+
     case FILLER_TYPE:
       os << "filler";
       break;
     case JS_OBJECT_TYPE:  // fall through
     case JS_API_OBJECT_TYPE:
     case JS_SPECIAL_API_OBJECT_TYPE:
     case JS_CONTEXT_EXTENSION_OBJECT_TYPE:
     case JS_GENERATOR_OBJECT_TYPE:
     case JS_PROMISE_TYPE:
     case JS_ARGUMENTS_TYPE:
@@ skipping 830 matching lines @@
 void JSTypedArray::JSTypedArrayPrint(std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "JSTypedArray");
   os << "\n - buffer = " << Brief(buffer());
   os << "\n - byte_offset = " << Brief(byte_offset());
   os << "\n - byte_length = " << Brief(byte_length());
   os << "\n - length = " << Brief(length());
   if (WasNeutered()) os << "\n - neutered";
   JSObjectPrintBody(os, this, !WasNeutered());
 }
 
+void JSArrayIterator::JSArrayIteratorPrint(std::ostream& os) {  // NOLING
+  JSObjectPrintHeader(os, this, "JSArrayIterator");
+
+  InstanceType instance_type = map()->instance_type();
+  std::string type;
+  if (instance_type <= LAST_ARRAY_KEY_ITERATOR_TYPE) {
+    type = "keys";
+  } else if (instance_type <= LAST_ARRAY_KEY_VALUE_ITERATOR_TYPE) {
+    type = "entries";
+  } else {
+    type = "values";
+  }
+
+  os << "\n - type = " << type;
+  os << "\n - object = " << Brief(object());
+  os << "\n - index = " << Brief(index());
+
+  JSObjectPrintBody(os, this);
+}
+
 void JSFixedArrayIterator::JSFixedArrayIteratorPrint(
     std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "JSFixedArrayIterator");
   os << "\n - array = " << Brief(array());
   os << "\n - index = " << index();
   os << "\n - initial_next = " << Brief(initial_next());
   JSObjectPrintBody(os, this);
 }
 
 void JSDataView::JSDataViewPrint(std::ostream& os) {  // NOLINT
@@ skipping 630 matching lines @@
     printf("Not a transition array\n");
   } else {
     reinterpret_cast<i::TransitionArray*>(object)->Print();
   }
 }
 
 extern void _v8_internal_Print_StackTrace() {
   i::Isolate* isolate = i::Isolate::Current();
   isolate->PrintStack(stdout);
 }