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1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
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2 * vim: set ts=8 sts=4 et sw=4 tw=99: |
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3 * This Source Code Form is subject to the terms of the Mozilla Public |
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4 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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6 |
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7 #ifndef vm_ObjectImpl_inl_h |
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8 #define vm_ObjectImpl_inl_h |
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9 |
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10 #include "vm/ObjectImpl.h" |
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11 |
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12 #include "jscntxt.h" |
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13 #include "jsproxy.h" |
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14 |
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15 #include "vm/ProxyObject.h" |
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16 #include "vm/TypedArrayObject.h" |
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17 |
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18 namespace js { |
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19 |
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20 /* static */ inline bool |
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21 ObjectImpl::isExtensible(ExclusiveContext *cx, Handle<ObjectImpl*> obj, bool *extensible) |
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22 { |
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23 if (obj->asObjectPtr()->is<ProxyObject>()) { |
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24 if (!cx->shouldBeJSContext()) |
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25 return false; |
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26 HandleObject h = |
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27 HandleObject::fromMarkedLocation(reinterpret_cast<JSObject* const*>(obj.address())); |
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28 return Proxy::isExtensible(cx->asJSContext(), h, extensible); |
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29 } |
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30 |
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31 *extensible = obj->nonProxyIsExtensible(); |
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32 return true; |
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33 } |
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34 |
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35 inline bool |
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36 ClassCanHaveFixedData(const Class *clasp) |
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37 { |
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38 // Normally, the number of fixed slots given an object is the maximum |
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39 // permitted for its size class. For array buffers and typed arrays we only |
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40 // use enough to cover the class reserved slots, so that the remaining |
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41 // space in the object's allocation is available for the buffer's data. |
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42 return clasp == &ArrayBufferObject::class_ || IsTypedArrayClass(clasp); |
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43 } |
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44 |
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45 inline void * |
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46 ObjectImpl::fixedData(size_t nslots) const |
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47 { |
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48 JS_ASSERT(ClassCanHaveFixedData(getClass())); |
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49 JS_ASSERT(nslots == numFixedSlots() + (hasPrivate() ? 1 : 0)); |
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50 return &fixedSlots()[nslots]; |
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51 } |
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52 |
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53 } // namespace js |
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54 |
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55 #endif /* vm_ObjectImpl_inl_h */ |