blob: 6bba2c7f7df8c67cc4d0e3180976bce06408fa48 [file] [log] [blame]
// 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.
patch class Object {
// Helpers used to implement hashCode. If a hashCode is used, we remember it
// in a weak table in the VM. A new hashCode value is calculated using a
// number generator.
static final _hashCodeRnd = new Random();
static _getHash(obj) native "Object_getHash";
static _setHash(obj, hash) native "Object_setHash";
/* patch */ int get hashCode => _identityHashCode;
int get _identityHashCode {
var result = _getHash(this);
if (result == 0) {
// We want the hash to be a Smi value greater than 0.
result = _hashCodeRnd.nextInt(0x40000000);
while (result == 0) {
result = _hashCodeRnd.nextInt(0x40000000);
_setHash(this, result);
return result;
/* patch */ String toString() native "Object_toString";
// A statically dispatched version of Object.toString.
static String _toString(obj) native "Object_toString";
_noSuchMethod(bool isMethod,
String memberName,
int type,
List arguments,
Map<String, dynamic> namedArguments)
native "Object_noSuchMethod";
/* patch */ noSuchMethod(Invocation invocation) {
return _noSuchMethod(invocation.isMethod,
/* patch */ Type get runtimeType native "Object_runtimeType";
// Call this function instead of inlining instanceof, thus collecting
// type feedback and reducing code size of unoptimized code.
bool _instanceOf(instantiator,
bool negate)
native "Object_instanceOf";
// Call this function instead of inlining 'as', thus collecting type
// feedback. Returns receiver.
_as(instantiator, instantiator_type_arguments, type) native "Object_as";
static _symbolMapToStringMap(Map<Symbol, dynamic> map) {
var result = new Map<String, dynamic>();
map.forEach((Symbol key, value) {
result[_collection_dev.Symbol.getName(key)] = value;
return result;
int get _cid native "Object_cid";
_leftShiftWithMask32(count, mask) {
return (this << count) & mask;