/work/obj-fuzz/dom/bindings/NodeListBinding.cpp
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1 | | /* THIS FILE IS AUTOGENERATED FROM NodeList.webidl BY Codegen.py - DO NOT EDIT */ |
2 | | |
3 | | #include "NodeListBinding.h" |
4 | | #include "WrapperFactory.h" |
5 | | #include "mozilla/OwningNonNull.h" |
6 | | #include "mozilla/dom/BindingUtils.h" |
7 | | #include "mozilla/dom/DOMJSClass.h" |
8 | | #include "mozilla/dom/DOMJSProxyHandler.h" |
9 | | #include "mozilla/dom/NonRefcountedDOMObject.h" |
10 | | #include "mozilla/dom/Nullable.h" |
11 | | #include "mozilla/dom/PrimitiveConversions.h" |
12 | | #include "mozilla/dom/ToJSValue.h" |
13 | | #include "mozilla/dom/XrayExpandoClass.h" |
14 | | #include "nsINode.h" |
15 | | #include "nsINodeList.h" |
16 | | |
17 | | namespace mozilla { |
18 | | namespace dom { |
19 | | |
20 | | namespace binding_detail {}; // Just to make sure it's known as a namespace |
21 | | using namespace mozilla::dom::binding_detail; |
22 | | |
23 | | |
24 | | namespace NodeList_Binding { |
25 | | |
26 | | MOZ_CAN_RUN_SCRIPT static bool |
27 | | item(JSContext* cx, JS::Handle<JSObject*> obj, nsINodeList* self, const JSJitMethodCallArgs& args) |
28 | 0 | { |
29 | 0 | AUTO_PROFILER_LABEL_FAST("NodeList.item", DOM, cx); |
30 | 0 |
|
31 | 0 | if (MOZ_UNLIKELY(args.length() < 1)) { |
32 | 0 | return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "NodeList.item"); |
33 | 0 | } |
34 | 0 | uint32_t arg0; |
35 | 0 | if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) { |
36 | 0 | return false; |
37 | 0 | } |
38 | 0 | auto result(StrongOrRawPtr<nsINode>(self->Item(arg0))); |
39 | 0 | MOZ_ASSERT(!JS_IsExceptionPending(cx)); |
40 | 0 | if (!result) { |
41 | 0 | args.rval().setNull(); |
42 | 0 | return true; |
43 | 0 | } |
44 | 0 | if (!GetOrCreateDOMReflector(cx, result, args.rval())) { |
45 | 0 | MOZ_ASSERT(JS_IsExceptionPending(cx)); |
46 | 0 | return false; |
47 | 0 | } |
48 | 0 | return true; |
49 | 0 | } |
50 | | |
51 | | static const JSJitInfo item_methodinfo = { |
52 | | { (JSJitGetterOp)item }, |
53 | | { prototypes::id::NodeList }, |
54 | | { PrototypeTraits<prototypes::id::NodeList>::Depth }, |
55 | | JSJitInfo::Method, |
56 | | JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ |
57 | | JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */ |
58 | | false, /* isInfallible. False in setters. */ |
59 | | false, /* isMovable. Not relevant for setters. */ |
60 | | false, /* isEliminatable. Not relevant for setters. */ |
61 | | false, /* isAlwaysInSlot. Only relevant for getters. */ |
62 | | false, /* isLazilyCachedInSlot. Only relevant for getters. */ |
63 | | false, /* isTypedMethod. Only relevant for methods. */ |
64 | | 0 /* Reserved slot index, if we're stored in a slot, else 0. */ |
65 | | }; |
66 | | static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit"); |
67 | | static_assert(0 < 1, "There is no slot for us"); |
68 | | |
69 | | MOZ_CAN_RUN_SCRIPT static bool |
70 | | get_length(JSContext* cx, JS::Handle<JSObject*> obj, nsINodeList* self, JSJitGetterCallArgs args) |
71 | 0 | { |
72 | 0 | AUTO_PROFILER_LABEL_FAST("get NodeList.length", DOM, cx); |
73 | 0 |
|
74 | 0 | uint32_t result(self->Length()); |
75 | 0 | MOZ_ASSERT(!JS_IsExceptionPending(cx)); |
76 | 0 | args.rval().setNumber(result); |
77 | 0 | return true; |
78 | 0 | } |
79 | | |
80 | | static const JSJitInfo length_getterinfo = { |
81 | | { (JSJitGetterOp)get_length }, |
82 | | { prototypes::id::NodeList }, |
83 | | { PrototypeTraits<prototypes::id::NodeList>::Depth }, |
84 | | JSJitInfo::Getter, |
85 | | JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ |
86 | | JSVAL_TYPE_DOUBLE, /* returnType. Not relevant for setters. */ |
87 | | true, /* isInfallible. False in setters. */ |
88 | | false, /* isMovable. Not relevant for setters. */ |
89 | | false, /* isEliminatable. Not relevant for setters. */ |
90 | | false, /* isAlwaysInSlot. Only relevant for getters. */ |
91 | | false, /* isLazilyCachedInSlot. Only relevant for getters. */ |
92 | | false, /* isTypedMethod. Only relevant for methods. */ |
93 | | 0 /* Reserved slot index, if we're stored in a slot, else 0. */ |
94 | | }; |
95 | | static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit"); |
96 | | static_assert(0 < 1, "There is no slot for us"); |
97 | | |
98 | | // We deliberately use brace-elision to make Visual Studio produce better initalization code. |
99 | | #if defined(__clang__) |
100 | | #pragma clang diagnostic push |
101 | | #pragma clang diagnostic ignored "-Wmissing-braces" |
102 | | #endif |
103 | | static const JSFunctionSpec sMethods_specs[] = { |
104 | | JS_FNSPEC("item", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&item_methodinfo), 1, JSPROP_ENUMERATE, nullptr), |
105 | | JS_SYM_FNSPEC(iterator, nullptr, nullptr, 0, 0, "ArrayValues"), |
106 | | JS_FNSPEC("keys", nullptr, nullptr, 0, JSPROP_ENUMERATE, "ArrayKeys"), |
107 | | JS_FNSPEC("values", nullptr, nullptr, 0, JSPROP_ENUMERATE, "ArrayValues"), |
108 | | JS_FNSPEC("entries", nullptr, nullptr, 0, JSPROP_ENUMERATE, "ArrayEntries"), |
109 | | JS_FNSPEC("forEach", nullptr, nullptr, 1, JSPROP_ENUMERATE, "ArrayForEach"), |
110 | | JS_FS_END |
111 | | }; |
112 | | #if defined(__clang__) |
113 | | #pragma clang diagnostic pop |
114 | | #endif |
115 | | |
116 | | |
117 | | static const Prefable<const JSFunctionSpec> sMethods[] = { |
118 | | { nullptr, &sMethods_specs[0] }, |
119 | | { nullptr, nullptr } |
120 | | }; |
121 | | |
122 | | static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX, |
123 | | "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)"); |
124 | | static_assert(6 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX, |
125 | | "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)"); |
126 | | |
127 | | // We deliberately use brace-elision to make Visual Studio produce better initalization code. |
128 | | #if defined(__clang__) |
129 | | #pragma clang diagnostic push |
130 | | #pragma clang diagnostic ignored "-Wmissing-braces" |
131 | | #endif |
132 | | static const JSPropertySpec sAttributes_specs[] = { |
133 | | { "length", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &length_getterinfo, nullptr, nullptr }, |
134 | | { nullptr, 0, nullptr, nullptr, nullptr, nullptr } |
135 | | }; |
136 | | #if defined(__clang__) |
137 | | #pragma clang diagnostic pop |
138 | | #endif |
139 | | |
140 | | |
141 | | static const Prefable<const JSPropertySpec> sAttributes[] = { |
142 | | { nullptr, &sAttributes_specs[0] }, |
143 | | { nullptr, nullptr } |
144 | | }; |
145 | | |
146 | | static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX, |
147 | | "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)"); |
148 | | static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX, |
149 | | "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)"); |
150 | | |
151 | | |
152 | | static uint16_t sNativeProperties_sortedPropertyIndices[7]; |
153 | | static PropertyInfo sNativeProperties_propertyInfos[7]; |
154 | | |
155 | | static const NativePropertiesN<2> sNativeProperties = { |
156 | | false, 0, |
157 | | false, 0, |
158 | | true, 0 /* sMethods */, |
159 | | true, 1 /* sAttributes */, |
160 | | false, 0, |
161 | | false, 0, |
162 | | false, 0, |
163 | | -1, |
164 | | 7, |
165 | | sNativeProperties_sortedPropertyIndices, |
166 | | { |
167 | | { sMethods, &sNativeProperties_propertyInfos[0] }, |
168 | | { sAttributes, &sNativeProperties_propertyInfos[6] } |
169 | | } |
170 | | }; |
171 | | static_assert(7 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount), |
172 | | "We have a property info count that is oversized"); |
173 | | |
174 | | static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = { |
175 | | { |
176 | | "Function", |
177 | | JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE), |
178 | | &sBoringInterfaceObjectClassClassOps, |
179 | | JS_NULL_CLASS_SPEC, |
180 | | JS_NULL_CLASS_EXT, |
181 | | &sInterfaceObjectClassObjectOps |
182 | | }, |
183 | | eInterface, |
184 | | true, |
185 | | prototypes::id::NodeList, |
186 | | PrototypeTraits<prototypes::id::NodeList>::Depth, |
187 | | sNativePropertyHooks, |
188 | | "function NodeList() {\n [native code]\n}", |
189 | | JS::GetRealmFunctionPrototype |
190 | | }; |
191 | | |
192 | | static const DOMIfaceAndProtoJSClass sPrototypeClass = { |
193 | | { |
194 | | "NodeListPrototype", |
195 | | JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE), |
196 | | JS_NULL_CLASS_OPS, |
197 | | JS_NULL_CLASS_SPEC, |
198 | | JS_NULL_CLASS_EXT, |
199 | | JS_NULL_OBJECT_OPS |
200 | | }, |
201 | | eInterfacePrototype, |
202 | | false, |
203 | | prototypes::id::NodeList, |
204 | | PrototypeTraits<prototypes::id::NodeList>::Depth, |
205 | | sNativePropertyHooks, |
206 | | "[object NodeListPrototype]", |
207 | | JS::GetRealmObjectPrototype |
208 | | }; |
209 | | |
210 | | static_assert(IsBaseOf<nsISupports, nsINodeList >::value, |
211 | | "We don't support non-nsISupports native classes for " |
212 | | "proxy-based bindings yet"); |
213 | | |
214 | | |
215 | | class DOMProxyHandler : public mozilla::dom::DOMProxyHandler |
216 | | { |
217 | | public: |
218 | | explicit constexpr DOMProxyHandler() |
219 | 0 | { |
220 | 0 | } |
221 | | |
222 | | virtual bool |
223 | | getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const override; |
224 | | |
225 | | virtual bool |
226 | | defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const override; |
227 | | |
228 | | using mozilla::dom::DOMProxyHandler::defineProperty; |
229 | | |
230 | | virtual bool |
231 | | ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const override; |
232 | | |
233 | | virtual bool |
234 | | hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const override; |
235 | | |
236 | | virtual bool |
237 | | get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const override; |
238 | | |
239 | | virtual const char* |
240 | | className(JSContext* cx, JS::Handle<JSObject*> proxy) const override; |
241 | | |
242 | | virtual bool |
243 | | finalizeInBackground(const JS::Value& priv) const override; |
244 | | |
245 | | virtual void |
246 | | finalize(JSFreeOp* fop, JSObject* proxy) const override; |
247 | | |
248 | | static const DOMProxyHandler* |
249 | | getInstance(); |
250 | | |
251 | | virtual bool |
252 | | delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const override; |
253 | | |
254 | | virtual bool |
255 | | getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const override; |
256 | | |
257 | | virtual bool |
258 | | canNurseryAllocate() const override; |
259 | | |
260 | | virtual size_t |
261 | | objectMoved(JSObject* obj, JSObject* old) const override; |
262 | | }; |
263 | | |
264 | | MOZ_ALWAYS_INLINE bool |
265 | | IsProxy(JSObject* obj) |
266 | 0 | { |
267 | 0 | return js::IsProxy(obj) && js::GetProxyHandler(obj) == DOMProxyHandler::getInstance(); |
268 | 0 | } |
269 | | |
270 | | MOZ_ALWAYS_INLINE nsINodeList* |
271 | | UnwrapProxy(JSObject* obj) |
272 | 0 | { |
273 | 0 | MOZ_ASSERT(js::IsProxy(obj)); |
274 | 0 | if (js::GetProxyHandler(obj) != DOMProxyHandler::getInstance()) { |
275 | 0 | MOZ_ASSERT(xpc::WrapperFactory::IsXrayWrapper(obj)); |
276 | 0 | obj = js::UncheckedUnwrap(obj); |
277 | 0 | } |
278 | 0 | MOZ_ASSERT(IsProxy(obj)); |
279 | 0 | return static_cast<nsINodeList*>(js::GetProxyReservedSlot(obj, DOM_OBJECT_SLOT).toPrivate()); |
280 | 0 | } |
281 | | |
282 | | bool |
283 | | DOMProxyHandler::getOwnPropDescriptor(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool ignoreNamedProps, JS::MutableHandle<JS::PropertyDescriptor> desc) const |
284 | 0 | { |
285 | 0 | bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy); |
286 | 0 | uint32_t index = GetArrayIndexFromId(cx, id); |
287 | 0 | if (IsArrayIndex(index)) { |
288 | 0 | nsINodeList* self = UnwrapProxy(proxy); |
289 | 0 | bool found = false; |
290 | 0 | auto result(StrongOrRawPtr<nsINode>(self->IndexedGetter(index, found))); |
291 | 0 | MOZ_ASSERT(!JS_IsExceptionPending(cx)); |
292 | 0 |
|
293 | 0 | if (found) { |
294 | 0 | if (!result) { |
295 | 0 | desc.value().setNull(); |
296 | 0 | FillPropertyDescriptor(desc, proxy, true); |
297 | 0 | return true; |
298 | 0 | } |
299 | 0 | if (!GetOrCreateDOMReflector(cx, result, desc.value())) { |
300 | 0 | MOZ_ASSERT(JS_IsExceptionPending(cx)); |
301 | 0 | return false; |
302 | 0 | } |
303 | 0 | FillPropertyDescriptor(desc, proxy, true); |
304 | 0 | return true; |
305 | 0 | } |
306 | 0 | } |
307 | 0 |
|
308 | 0 | JS::Rooted<JSObject*> expando(cx); |
309 | 0 | if (!isXray && (expando = GetExpandoObject(proxy))) { |
310 | 0 | if (!JS_GetOwnPropertyDescriptorById(cx, expando, id, desc)) { |
311 | 0 | return false; |
312 | 0 | } |
313 | 0 | if (desc.object()) { |
314 | 0 | // Pretend the property lives on the wrapper. |
315 | 0 | desc.object().set(proxy); |
316 | 0 | return true; |
317 | 0 | } |
318 | 0 | } |
319 | 0 | |
320 | 0 | desc.object().set(nullptr); |
321 | 0 | return true; |
322 | 0 | } |
323 | | |
324 | | bool |
325 | | DOMProxyHandler::defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::Handle<JS::PropertyDescriptor> desc, JS::ObjectOpResult& opresult, bool* defined) const |
326 | 0 | { |
327 | 0 | if (IsArrayIndex(GetArrayIndexFromId(cx, id))) { |
328 | 0 | *defined = true; |
329 | 0 | return opresult.failNoIndexedSetter(); |
330 | 0 | } |
331 | 0 | return mozilla::dom::DOMProxyHandler::defineProperty(cx, proxy, id, desc, opresult, defined); |
332 | 0 | } |
333 | | |
334 | | |
335 | | bool |
336 | | DOMProxyHandler::ownPropNames(JSContext* cx, JS::Handle<JSObject*> proxy, unsigned flags, JS::AutoIdVector& props) const |
337 | 0 | { |
338 | 0 | bool isXray = xpc::WrapperFactory::IsXrayWrapper(proxy); |
339 | 0 |
|
340 | 0 | uint32_t length = UnwrapProxy(proxy)->Length(); |
341 | 0 | MOZ_ASSERT(int32_t(length) >= 0); |
342 | 0 | for (int32_t i = 0; i < int32_t(length); ++i) { |
343 | 0 | if (!props.append(INT_TO_JSID(i))) { |
344 | 0 | return false; |
345 | 0 | } |
346 | 0 | } |
347 | 0 |
|
348 | 0 | JS::Rooted<JSObject*> expando(cx); |
349 | 0 | if (!isXray && (expando = DOMProxyHandler::GetExpandoObject(proxy)) && |
350 | 0 | !js::GetPropertyKeys(cx, expando, flags, &props)) { |
351 | 0 | return false; |
352 | 0 | } |
353 | 0 | |
354 | 0 | return true; |
355 | 0 | } |
356 | | |
357 | | bool |
358 | | DOMProxyHandler::hasOwn(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, bool* bp) const |
359 | 0 | { |
360 | 0 | MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy), |
361 | 0 | "Should not have a XrayWrapper here"); |
362 | 0 |
|
363 | 0 | uint32_t index = GetArrayIndexFromId(cx, id); |
364 | 0 | if (IsArrayIndex(index)) { |
365 | 0 | bool found = false; |
366 | 0 | nsINodeList* self = UnwrapProxy(proxy); |
367 | 0 | auto result(StrongOrRawPtr<nsINode>(self->IndexedGetter(index, found))); |
368 | 0 | MOZ_ASSERT(!JS_IsExceptionPending(cx)); |
369 | 0 | (void)result; |
370 | 0 |
|
371 | 0 | *bp = found; |
372 | 0 | return true; |
373 | 0 | } |
374 | 0 |
|
375 | 0 |
|
376 | 0 | JS::Rooted<JSObject*> expando(cx, GetExpandoObject(proxy)); |
377 | 0 | if (expando) { |
378 | 0 | bool b = true; |
379 | 0 | bool ok = JS_HasPropertyById(cx, expando, id, &b); |
380 | 0 | *bp = !!b; |
381 | 0 | if (!ok || *bp) { |
382 | 0 | return ok; |
383 | 0 | } |
384 | 0 | } |
385 | 0 | |
386 | 0 | *bp = false; |
387 | 0 | return true; |
388 | 0 | } |
389 | | |
390 | | bool |
391 | | DOMProxyHandler::get(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<JS::Value> receiver, JS::Handle<jsid> id, JS::MutableHandle<JS::Value> vp) const |
392 | 0 | { |
393 | 0 | MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy), |
394 | 0 | "Should not have a XrayWrapper here"); |
395 | 0 |
|
396 | 0 | uint32_t index = GetArrayIndexFromId(cx, id); |
397 | 0 | if (IsArrayIndex(index)) { |
398 | 0 | nsINodeList* self = UnwrapProxy(proxy); |
399 | 0 | bool found = false; |
400 | 0 | auto result(StrongOrRawPtr<nsINode>(self->IndexedGetter(index, found))); |
401 | 0 | MOZ_ASSERT(!JS_IsExceptionPending(cx)); |
402 | 0 |
|
403 | 0 | if (found) { |
404 | 0 | if (!result) { |
405 | 0 | vp.setNull(); |
406 | 0 | return true; |
407 | 0 | } |
408 | 0 | if (!GetOrCreateDOMReflector(cx, result, vp)) { |
409 | 0 | MOZ_ASSERT(JS_IsExceptionPending(cx)); |
410 | 0 | return false; |
411 | 0 | } |
412 | 0 | return true; |
413 | 0 | } |
414 | 0 | // Even if we don't have this index, we don't forward the |
415 | 0 | // get on to our expando object. |
416 | 0 | } else { |
417 | 0 | { // Scope for expando |
418 | 0 | JS::Rooted<JSObject*> expando(cx, DOMProxyHandler::GetExpandoObject(proxy)); |
419 | 0 | if (expando) { |
420 | 0 | bool hasProp; |
421 | 0 | if (!JS_HasPropertyById(cx, expando, id, &hasProp)) { |
422 | 0 | return false; |
423 | 0 | } |
424 | 0 | |
425 | 0 | if (hasProp) { |
426 | 0 | // Forward the get to the expando object, but our receiver is whatever our |
427 | 0 | // receiver is. |
428 | 0 | return JS_ForwardGetPropertyTo(cx, expando, id, receiver, vp); |
429 | 0 | } |
430 | 0 | } |
431 | 0 | } |
432 | 0 | } |
433 | 0 | |
434 | 0 | bool foundOnPrototype; |
435 | 0 | if (!GetPropertyOnPrototype(cx, proxy, receiver, id, &foundOnPrototype, vp)) { |
436 | 0 | return false; |
437 | 0 | } |
438 | 0 | |
439 | 0 | if (foundOnPrototype) { |
440 | 0 | return true; |
441 | 0 | } |
442 | 0 | |
443 | 0 | vp.setUndefined(); |
444 | 0 | return true; |
445 | 0 | } |
446 | | |
447 | | const char* |
448 | | DOMProxyHandler::className(JSContext* cx, JS::Handle<JSObject*> proxy) const |
449 | 0 | { |
450 | 0 | return "NodeList"; |
451 | 0 | } |
452 | | |
453 | | bool |
454 | | DOMProxyHandler::finalizeInBackground(const JS::Value& priv) const |
455 | 0 | { |
456 | 0 | return false; |
457 | 0 | } |
458 | | |
459 | | void |
460 | | DOMProxyHandler::finalize(JSFreeOp* fop, JSObject* proxy) const |
461 | 0 | { |
462 | 0 | nsINodeList* self = UnwrapPossiblyNotInitializedDOMObject<nsINodeList>(proxy); |
463 | 0 | if (self) { |
464 | 0 | ClearWrapper(self, self, proxy); |
465 | 0 | AddForDeferredFinalization<nsINodeList>(self); |
466 | 0 | } |
467 | 0 | } |
468 | | |
469 | | const DOMProxyHandler* |
470 | | DOMProxyHandler::getInstance() |
471 | 0 | { |
472 | 0 | static const DOMProxyHandler instance; |
473 | 0 | return &instance; |
474 | 0 | } |
475 | | |
476 | | bool |
477 | | DOMProxyHandler::delete_(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id, JS::ObjectOpResult& opresult) const |
478 | 0 | { |
479 | 0 | MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy), |
480 | 0 | "Should not have a XrayWrapper here"); |
481 | 0 |
|
482 | 0 | uint32_t index = GetArrayIndexFromId(cx, id); |
483 | 0 | if (IsArrayIndex(index)) { |
484 | 0 | bool deleteSucceeded; |
485 | 0 | bool found = false; |
486 | 0 | nsINodeList* self = UnwrapProxy(proxy); |
487 | 0 | auto result(StrongOrRawPtr<nsINode>(self->IndexedGetter(index, found))); |
488 | 0 | MOZ_ASSERT(!JS_IsExceptionPending(cx)); |
489 | 0 | (void)result; |
490 | 0 | deleteSucceeded = !found; |
491 | 0 | return deleteSucceeded ? opresult.succeed() : opresult.failCantDelete(); |
492 | 0 | } |
493 | 0 |
|
494 | 0 | return dom::DOMProxyHandler::delete_(cx, proxy, id, opresult); |
495 | 0 | } |
496 | | |
497 | | bool |
498 | | DOMProxyHandler::getElements(JSContext* cx, JS::Handle<JSObject*> proxy, uint32_t begin, uint32_t end, js::ElementAdder* adder) const |
499 | 0 | { |
500 | 0 | JS::Rooted<JS::Value> temp(cx); |
501 | 0 | MOZ_ASSERT(!xpc::WrapperFactory::IsXrayWrapper(proxy), |
502 | 0 | "Should not have a XrayWrapper here"); |
503 | 0 |
|
504 | 0 | nsINodeList* self = UnwrapProxy(proxy); |
505 | 0 | uint32_t length = self->Length(); |
506 | 0 | // Compute the end of the indices we'll get ourselves |
507 | 0 | uint32_t ourEnd = std::max(begin, std::min(end, length)); |
508 | 0 |
|
509 | 0 | for (uint32_t index = begin; index < ourEnd; ++index) { |
510 | 0 | bool found = false; |
511 | 0 | auto result(StrongOrRawPtr<nsINode>(self->IndexedGetter(index, found))); |
512 | 0 | MOZ_ASSERT(!JS_IsExceptionPending(cx)); |
513 | 0 |
|
514 | 0 | MOZ_ASSERT(found); |
515 | 0 | if (!result) { |
516 | 0 | temp.setNull(); |
517 | 0 | if (!adder->append(cx, temp)) return false; |
518 | 0 | continue; |
519 | 0 | } |
520 | 0 | if (!GetOrCreateDOMReflector(cx, result, &temp)) { |
521 | 0 | MOZ_ASSERT(JS_IsExceptionPending(cx)); |
522 | 0 | return false; |
523 | 0 | } |
524 | 0 | if (!adder->append(cx, temp)) return false; |
525 | 0 | continue; |
526 | 0 | } |
527 | 0 |
|
528 | 0 | if (end > ourEnd) { |
529 | 0 | JS::Rooted<JSObject*> proto(cx); |
530 | 0 | if (!js::GetObjectProto(cx, proxy, &proto)) { |
531 | 0 | return false; |
532 | 0 | } |
533 | 0 | return js::GetElementsWithAdder(cx, proto, proxy, ourEnd, end, adder); |
534 | 0 | } |
535 | 0 | |
536 | 0 | return true; |
537 | 0 | } |
538 | | |
539 | | bool |
540 | | DOMProxyHandler::canNurseryAllocate() const |
541 | 0 | { |
542 | 0 | return true; |
543 | 0 | } |
544 | | |
545 | | size_t |
546 | | DOMProxyHandler::objectMoved(JSObject* obj, JSObject* old) const |
547 | 0 | { |
548 | 0 | nsINodeList* self = UnwrapPossiblyNotInitializedDOMObject<nsINodeList>(obj); |
549 | 0 | if (self) { |
550 | 0 | UpdateWrapper(self, self, obj, old); |
551 | 0 | } |
552 | 0 |
|
553 | 0 | return 0; |
554 | 0 | } |
555 | | |
556 | | static const DOMJSClass sClass = { |
557 | | PROXY_CLASS_DEF("NodeList", |
558 | | JSCLASS_IS_DOMJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(1)), |
559 | | { prototypes::id::NodeList, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count }, |
560 | | IsBaseOf<nsISupports, nsINodeList >::value, |
561 | | sNativePropertyHooks, |
562 | | FindAssociatedGlobalForNative<nsINodeList>::Get, |
563 | | GetProtoObjectHandle, |
564 | | GetCCParticipant<nsINodeList>::Get() |
565 | | }; |
566 | | |
567 | | bool |
568 | | Wrap(JSContext* aCx, nsINodeList* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector) |
569 | 0 | { |
570 | 0 | static_assert(!IsBaseOf<NonRefcountedDOMObject, nsINodeList>::value, |
571 | 0 | "Shouldn't have wrappercached things that are not refcounted."); |
572 | 0 | MOZ_ASSERT(static_cast<nsINodeList*>(aObject) == |
573 | 0 | reinterpret_cast<nsINodeList*>(aObject), |
574 | 0 | "Multiple inheritance for nsINodeList is broken."); |
575 | 0 | MOZ_ASSERT(ToSupportsIsCorrect(aObject)); |
576 | 0 | MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx)); |
577 | 0 | MOZ_ASSERT(!aCache->GetWrapper(), |
578 | 0 | "You should probably not be using Wrap() directly; use " |
579 | 0 | "GetOrCreateDOMReflector instead"); |
580 | 0 |
|
581 | 0 | MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache), |
582 | 0 | "nsISupports must be on our primary inheritance chain"); |
583 | 0 |
|
584 | 0 | JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject())); |
585 | 0 | if (!global) { |
586 | 0 | return false; |
587 | 0 | } |
588 | 0 | MOZ_ASSERT(JS_IsGlobalObject(global)); |
589 | 0 | MOZ_ASSERT(JS::ObjectIsNotGray(global)); |
590 | 0 |
|
591 | 0 | // That might have ended up wrapping us already, due to the wonders |
592 | 0 | // of XBL. Check for that, and bail out as needed. |
593 | 0 | aReflector.set(aCache->GetWrapper()); |
594 | 0 | if (aReflector) { |
595 | | #ifdef DEBUG |
596 | | AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto); |
597 | | #endif // DEBUG |
598 | | return true; |
599 | 0 | } |
600 | 0 |
|
601 | 0 | JSAutoRealm ar(aCx, global); |
602 | 0 | JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx); |
603 | 0 | if (!canonicalProto) { |
604 | 0 | return false; |
605 | 0 | } |
606 | 0 | JS::Rooted<JSObject*> proto(aCx); |
607 | 0 | if (aGivenProto) { |
608 | 0 | proto = aGivenProto; |
609 | 0 | // Unfortunately, while aGivenProto was in the compartment of aCx |
610 | 0 | // coming in, we changed compartments to that of "parent" so may need |
611 | 0 | // to wrap the proto here. |
612 | 0 | if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) { |
613 | 0 | if (!JS_WrapObject(aCx, &proto)) { |
614 | 0 | return false; |
615 | 0 | } |
616 | 0 | } |
617 | 0 | } else { |
618 | 0 | proto = canonicalProto; |
619 | 0 | } |
620 | 0 |
|
621 | 0 | BindingJSObjectCreator<nsINodeList> creator(aCx); |
622 | 0 | creator.CreateProxyObject(aCx, &sClass.mBase, DOMProxyHandler::getInstance(), |
623 | 0 | proto, aObject, JS::UndefinedHandleValue, aReflector); |
624 | 0 | if (!aReflector) { |
625 | 0 | return false; |
626 | 0 | } |
627 | 0 | |
628 | 0 | aCache->SetWrapper(aReflector); |
629 | 0 | creator.InitializationSucceeded(); |
630 | 0 |
|
631 | 0 | MOZ_ASSERT(aCache->GetWrapperPreserveColor() && |
632 | 0 | aCache->GetWrapperPreserveColor() == aReflector); |
633 | 0 | // If proto != canonicalProto, we have to preserve our wrapper; |
634 | 0 | // otherwise we won't be able to properly recreate it later, since |
635 | 0 | // we won't know what proto to use. Note that we don't check |
636 | 0 | // aGivenProto here, since it's entirely possible (and even |
637 | 0 | // somewhat common) to have a non-null aGivenProto which is the |
638 | 0 | // same as canonicalProto. |
639 | 0 | if (proto != canonicalProto) { |
640 | 0 | PreserveWrapper(aObject); |
641 | 0 | } |
642 | 0 |
|
643 | 0 | return true; |
644 | 0 | } |
645 | | |
646 | | static bool |
647 | | ResolveOwnProperty(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::MutableHandle<JS::PropertyDescriptor> desc) |
648 | 0 | { |
649 | 0 | return js::GetProxyHandler(obj)->getOwnPropertyDescriptor(cx, wrapper, id, desc); |
650 | 0 | } |
651 | | |
652 | | static bool |
653 | | EnumerateOwnProperties(JSContext* cx, JS::Handle<JSObject*> wrapper, JS::Handle<JSObject*> obj, JS::AutoIdVector& props) |
654 | 0 | { |
655 | 0 | return js::GetProxyHandler(obj)->ownPropertyKeys(cx, wrapper, props); |
656 | 0 | } |
657 | | |
658 | | const NativePropertyHooks sNativePropertyHooks[] = { { |
659 | | ResolveOwnProperty, |
660 | | EnumerateOwnProperties, |
661 | | nullptr, |
662 | | { sNativeProperties.Upcast(), nullptr }, |
663 | | prototypes::id::NodeList, |
664 | | constructors::id::NodeList, |
665 | | nullptr, |
666 | | &DefaultXrayExpandoObjectClass |
667 | | } }; |
668 | | |
669 | | void |
670 | | CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal) |
671 | 0 | { |
672 | 0 | JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx)); |
673 | 0 | if (!parentProto) { |
674 | 0 | return; |
675 | 0 | } |
676 | 0 | |
677 | 0 | JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx)); |
678 | 0 | if (!constructorProto) { |
679 | 0 | return; |
680 | 0 | } |
681 | 0 | |
682 | 0 | static bool sIdsInited = false; |
683 | 0 | if (!sIdsInited && NS_IsMainThread()) { |
684 | 0 | if (!InitIds(aCx, sNativeProperties.Upcast())) { |
685 | 0 | return; |
686 | 0 | } |
687 | 0 | sIdsInited = true; |
688 | 0 | } |
689 | 0 |
|
690 | 0 | JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::NodeList); |
691 | 0 | JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::NodeList); |
692 | 0 | dom::CreateInterfaceObjects(aCx, aGlobal, parentProto, |
693 | 0 | &sPrototypeClass.mBase, protoCache, |
694 | 0 | nullptr, |
695 | 0 | constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr, |
696 | 0 | interfaceCache, |
697 | 0 | sNativeProperties.Upcast(), |
698 | 0 | nullptr, |
699 | 0 | "NodeList", aDefineOnGlobal, |
700 | 0 | nullptr, |
701 | 0 | false); |
702 | 0 | } |
703 | | |
704 | | JSObject* |
705 | | GetProtoObject(JSContext* aCx) |
706 | 0 | { |
707 | 0 | return GetProtoObjectHandle(aCx); |
708 | 0 | } |
709 | | |
710 | | JSObject* |
711 | | GetConstructorObject(JSContext* aCx) |
712 | 0 | { |
713 | 0 | return GetConstructorObjectHandle(aCx); |
714 | 0 | } |
715 | | |
716 | | } // namespace NodeList_Binding |
717 | | |
718 | | |
719 | | |
720 | | } // namespace dom |
721 | | } // namespace mozilla |