Add missing backref collection when reading mint and bigint objects in a native message handler

runtime/vm/snapshot_test.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 "platform/assert.h"
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_message.h"
@@ skipping 1287 matching lines @@
 UNIT_TEST_CASE(DartGeneratedListMessagesWithBackref) {
   const int kArrayLength = 10;
   static const char* kScriptChars =
       "final int kArrayLength = 10;\n"
       "getStringList() {\n"
       "  var s = 'Hello, world!';\n"
       "  var list = new List<String>(kArrayLength);\n"
       "  for (var i = 0; i < kArrayLength; i++) list[i] = s;\n"
       "  return list;\n"
       "}\n"
+      "getMintList() {\n"
+      "  var mint = 0x7FFFFFFFFFFFFFFF;\n"
+      "  var list = new List(kArrayLength);\n"
+      "  for (var i = 0; i < kArrayLength; i++) list[i] = mint;\n"
+      "  return list;\n"
+      "}\n"
+      "getBigintList() {\n"
+      "  var bigint = 0x1234567890123456789012345678901234567890;\n"
+      "  var list = new List(kArrayLength);\n"
+      "  for (var i = 0; i < kArrayLength; i++) list[i] = bigint;\n"
+      "  return list;\n"
+      "}\n"
       "getDoubleList() {\n"
       "  var d = 3.14;\n"
       "  var list = new List<double>(kArrayLength);\n"
       "  for (var i = 0; i < kArrayLength; i++) list[i] = d;\n"
       "  return list;\n"
       "}\n"
       "getByteArrayList() {\n"
       "  var byte_array = new ByteArray(256);\n"
       "  var list = new List<ByteArray>(kArrayLength);\n"
       "  for (var i = 0; i < kArrayLength; i++) list[i] = byte_array;\n"
@@ skipping 33 matching lines @@
       EXPECT_EQ(Dart_CObject::kArray, root->type);
       EXPECT_EQ(kArrayLength, root->value.as_array.length);
       for (int i = 0; i < kArrayLength; i++) {
         Dart_CObject* element = root->value.as_array.values[i];
         EXPECT_EQ(root->value.as_array.values[0], element);
         EXPECT_EQ(Dart_CObject::kString, element->type);
         EXPECT_STREQ("Hello, world!", element->value.as_string);
       }
     }
     {
+      // Generate a list of medium ints from Dart code.
+      ApiNativeScope scope;
+      Dart_CObject* root = GetDeserializedDartMessage(lib, "getMintList");
+      EXPECT_NOTNULL(root);
+      EXPECT_EQ(Dart_CObject::kArray, root->type);
+      EXPECT_EQ(kArrayLength, root->value.as_array.length);
+      for (int i = 0; i < kArrayLength; i++) {
+        Dart_CObject* element = root->value.as_array.values[i];
+        EXPECT_EQ(root->value.as_array.values[0], element);
+        EXPECT_EQ(Dart_CObject::kInt64, element->type);
+      }
+    }
+    {
+      // Generate a list of bigints from Dart code.
+      ApiNativeScope scope;
+      Dart_CObject* root = GetDeserializedDartMessage(lib, "getBigintList");
+      EXPECT_NOTNULL(root);
+      EXPECT_EQ(Dart_CObject::kArray, root->type);
+      EXPECT_EQ(kArrayLength, root->value.as_array.length);
+      for (int i = 0; i < kArrayLength; i++) {
+        Dart_CObject* element = root->value.as_array.values[i];
+        EXPECT_EQ(root->value.as_array.values[0], element);
+        EXPECT_EQ(Dart_CObject::kBigint, element->type);
+      }
+    }
+    {
       // Generate a list of doubles from Dart code.
       ApiNativeScope scope;
       Dart_CObject* root = GetDeserializedDartMessage(lib, "getDoubleList");
       EXPECT_NOTNULL(root);
       EXPECT_EQ(Dart_CObject::kArray, root->type);
       EXPECT_EQ(kArrayLength, root->value.as_array.length);
       for (int i = 0; i < kArrayLength; i++) {
         Dart_CObject* element = root->value.as_array.values[i];
         EXPECT_EQ(root->value.as_array.values[0], element);
         EXPECT_EQ(Dart_CObject::kDouble, element->type);
@@ skipping 121 matching lines @@
   EXPECT(Dart_ErrorHasException(result));
   EXPECT_SUBSTRING("Exception: nulltruefalse1234563.14[]\n",
                    Dart_GetError(result));
 
   Dart_ExitScope();
 }
 
 #endif  // defined(TARGET_ARCH_IA32) || defined(TARGET_ARCH_X64).
 
 }  // namespace dart