The Tor Browser / file comparison
comparison: js/src/vm/ArrayObject.h
js/src/vm/ArrayObject.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:92e6c0cdba56 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 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_ArrayObject_h | |
| 8 #define vm_ArrayObject_h | |
| 9 | |
| 10 #include "jsobj.h" | |
| 11 | |
| 12 namespace js { | |
| 13 | |
| 14 class ArrayObject : public JSObject | |
| 15 { | |
| 16 public: | |
| 17 // Array(x) eagerly allocates dense elements if x <= this value. | |
| 18 static const uint32_t EagerAllocationMaxLength = 2048; | |
| 19 | |
| 20 static const Class class_; | |
| 21 | |
| 22 bool lengthIsWritable() const { | |
| 23 return !getElementsHeader()->hasNonwritableArrayLength(); | |
| 24 } | |
| 25 | |
| 26 uint32_t length() const { | |
| 27 return getElementsHeader()->length; | |
| 28 } | |
| 29 | |
| 30 inline void setLength(ExclusiveContext *cx, uint32_t length); | |
| 31 | |
| 32 // Variant of setLength for use on arrays where the length cannot overflow int32_t. | |
| 33 void setLengthInt32(uint32_t length) { | |
| 34 JS_ASSERT(lengthIsWritable()); | |
| 35 JS_ASSERT(length <= INT32_MAX); | |
| 36 getElementsHeader()->length = length; | |
| 37 } | |
| 38 }; | |
| 39 | |
| 40 } // namespace js | |
| 41 | |
| 42 #endif // vm_ArrayObject_h | |
| 43 |
