js/src/vm/ArrayBufferObject-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_ArrayBufferObject_inl_h
   8 #define vm_ArrayBufferObject_inl_h
   9
  10 // Utilities and common inline code for ArrayBufferObject and
  11 // SharedArrayBufferObject.
  12
  13 #include "vm/ArrayBufferObject.h"
  14
  15 #include "vm/SharedArrayObject.h"
  16 #include "vm/SharedMem.h"
  17
  18 namespace js {
  19
  20 inline SharedMem<uint8_t*> ArrayBufferObjectMaybeShared::dataPointerEither() {
  21   if (this->is<ArrayBufferObject>()) {
  22     return this->as<ArrayBufferObject>().dataPointerShared();
  23   }
  24   return this->as<SharedArrayBufferObject>().dataPointerShared();
  25 }
  26
  27 inline bool ArrayBufferObjectMaybeShared::isDetached() const {
  28   if (this->is<ArrayBufferObject>()) {
  29     return this->as<ArrayBufferObject>().isDetached();
  30   }
  31   return false;
  32 }
  33
  34 inline bool ArrayBufferObjectMaybeShared::isResizable() const {
  35   if (this->is<ArrayBufferObject>()) {
  36     return this->as<ArrayBufferObject>().isResizable();
  37   }
  38   return this->as<SharedArrayBufferObject>().isGrowable();
  39 }
  40
  41 inline size_t ArrayBufferObjectMaybeShared::byteLength() const {
  42   if (this->is<ArrayBufferObject>()) {
  43     return this->as<ArrayBufferObject>().byteLength();
  44   }
  45   return this->as<SharedArrayBufferObject>().byteLength();
  46 }
  47
  48 inline bool ArrayBufferObjectMaybeShared::isPreparedForAsmJS() const {
  49   if (this->is<ArrayBufferObject>()) {
  50     return this->as<ArrayBufferObject>().isPreparedForAsmJS();
  51   }
  52   return false;
  53 }
  54
  55 inline bool ArrayBufferObjectMaybeShared::isWasm() const {
  56   if (this->is<ArrayBufferObject>()) {
  57     return this->as<ArrayBufferObject>().isWasm();
  58   }
  59   return this->as<SharedArrayBufferObject>().isWasm();
  60 }
  61
  62 inline bool ArrayBufferObjectMaybeShared::pinLength(bool pin) {
  63   if (is<ArrayBufferObject>()) {
  64     return as<ArrayBufferObject>().pinLength(pin);
  65   }
  66   return false;  // Cannot pin or unpin shared array buffers.
  67 }
  68
  69 }  // namespace js
  70
  71 #endif  // vm_ArrayBufferObject_inl_h