js/src/vm/StringObject-inl.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: set ts=8 sts=2 et sw=2 tw=80:
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef vm_StringObject_inl_h
   8 #define vm_StringObject_inl_h
   9
  10 #include "vm/StringObject.h"
  11
  12 #include "vm/JSObject-inl.h"
  13 #include "vm/Shape-inl.h"
  14
  15 namespace js {
  16
  17 /* static */ inline bool StringObject::init(JSContext* cx,
  18                                             Handle<StringObject*> obj,
  19                                             HandleString str) {
  20   MOZ_ASSERT(obj->numFixedSlots() == 2);
  21
  22   if (!SharedShape::ensureInitialCustomShape<StringObject>(cx, obj)) {
  23     return false;
  24   }
  25
  26   MOZ_ASSERT(obj->lookup(cx, NameToId(cx->names().length))->slot() ==
  27              LENGTH_SLOT);
  28
  29   obj->setStringThis(str);
  30
  31   return true;
  32 }
  33
  34 /* static */ inline StringObject* StringObject::create(JSContext* cx,
  35                                                        HandleString str,
  36                                                        HandleObject proto,
  37                                                        NewObjectKind newKind) {
  38   Rooted<StringObject*> obj(
  39       cx, NewObjectWithClassProtoAndKind<StringObject>(
  40               cx, proto, newKind,
  41               ObjectFlags({ObjectFlag::NeedsProxyGetSetResultValidation})));
  42   if (!obj) {
  43     return nullptr;
  44   }
  45   if (!StringObject::init(cx, obj, str)) {
  46     return nullptr;
  47   }
  48   return obj;
  49 }
  50
  51 }  // namespace js
  52
  53 #endif /* vm_StringObject_inl_h */