1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jsgcinlines.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,642 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef jsgcinlines_h
1.11 +#define jsgcinlines_h
1.12 +
1.13 +#include "jsgc.h"
1.14 +
1.15 +#include "gc/Zone.h"
1.16 +
1.17 +namespace js {
1.18 +
1.19 +class Shape;
1.20 +
1.21 +/*
1.22 + * This auto class should be used around any code that might cause a mark bit to
1.23 + * be set on an object in a dead zone. See AutoMaybeTouchDeadZones
1.24 + * for more details.
1.25 + */
1.26 +struct AutoMarkInDeadZone
1.27 +{
1.28 + AutoMarkInDeadZone(JS::Zone *zone)
1.29 + : zone(zone),
1.30 + scheduled(zone->scheduledForDestruction)
1.31 + {
1.32 + JSRuntime *rt = zone->runtimeFromMainThread();
1.33 + if (rt->gcManipulatingDeadZones && zone->scheduledForDestruction) {
1.34 + rt->gcObjectsMarkedInDeadZones++;
1.35 + zone->scheduledForDestruction = false;
1.36 + }
1.37 + }
1.38 +
1.39 + ~AutoMarkInDeadZone() {
1.40 + zone->scheduledForDestruction = scheduled;
1.41 + }
1.42 +
1.43 + private:
1.44 + JS::Zone *zone;
1.45 + bool scheduled;
1.46 +};
1.47 +
1.48 +inline Allocator *const
1.49 +ThreadSafeContext::allocator()
1.50 +{
1.51 + JS_ASSERT_IF(isJSContext(), &asJSContext()->zone()->allocator == allocator_);
1.52 + return allocator_;
1.53 +}
1.54 +
1.55 +template <typename T>
1.56 +inline bool
1.57 +ThreadSafeContext::isThreadLocal(T thing) const
1.58 +{
1.59 + if (!isForkJoinContext())
1.60 + return true;
1.61 +
1.62 + if (!IsInsideNursery(runtime_, thing) &&
1.63 + allocator_->arenas.containsArena(runtime_, thing->arenaHeader()))
1.64 + {
1.65 + // GC should be suppressed in preparation for mutating thread local
1.66 + // objects, as we don't want to trip any barriers.
1.67 + JS_ASSERT(!thing->zoneFromAnyThread()->needsBarrier());
1.68 + JS_ASSERT(!thing->runtimeFromAnyThread()->needsBarrier());
1.69 +
1.70 + return true;
1.71 + }
1.72 +
1.73 + return false;
1.74 +}
1.75 +
1.76 +namespace gc {
1.77 +
1.78 +static inline AllocKind
1.79 +GetGCObjectKind(const Class *clasp)
1.80 +{
1.81 + if (clasp == FunctionClassPtr)
1.82 + return JSFunction::FinalizeKind;
1.83 + uint32_t nslots = JSCLASS_RESERVED_SLOTS(clasp);
1.84 + if (clasp->flags & JSCLASS_HAS_PRIVATE)
1.85 + nslots++;
1.86 + return GetGCObjectKind(nslots);
1.87 +}
1.88 +
1.89 +#ifdef JSGC_GENERATIONAL
1.90 +inline bool
1.91 +ShouldNurseryAllocate(const Nursery &nursery, AllocKind kind, InitialHeap heap)
1.92 +{
1.93 + return nursery.isEnabled() && IsNurseryAllocable(kind) && heap != TenuredHeap;
1.94 +}
1.95 +#endif
1.96 +
1.97 +inline JSGCTraceKind
1.98 +GetGCThingTraceKind(const void *thing)
1.99 +{
1.100 + JS_ASSERT(thing);
1.101 + const Cell *cell = static_cast<const Cell *>(thing);
1.102 +#ifdef JSGC_GENERATIONAL
1.103 + if (IsInsideNursery(cell->runtimeFromAnyThread(), cell))
1.104 + return JSTRACE_OBJECT;
1.105 +#endif
1.106 + return MapAllocToTraceKind(cell->tenuredGetAllocKind());
1.107 +}
1.108 +
1.109 +static inline void
1.110 +GCPoke(JSRuntime *rt)
1.111 +{
1.112 + rt->gcPoke = true;
1.113 +
1.114 +#ifdef JS_GC_ZEAL
1.115 + /* Schedule a GC to happen "soon" after a GC poke. */
1.116 + if (rt->gcZeal() == js::gc::ZealPokeValue)
1.117 + rt->gcNextScheduled = 1;
1.118 +#endif
1.119 +}
1.120 +
1.121 +class ArenaIter
1.122 +{
1.123 + ArenaHeader *aheader;
1.124 + ArenaHeader *remainingHeader;
1.125 +
1.126 + public:
1.127 + ArenaIter() {
1.128 + init();
1.129 + }
1.130 +
1.131 + ArenaIter(JS::Zone *zone, AllocKind kind) {
1.132 + init(zone, kind);
1.133 + }
1.134 +
1.135 + void init() {
1.136 + aheader = nullptr;
1.137 + remainingHeader = nullptr;
1.138 + }
1.139 +
1.140 + void init(ArenaHeader *aheaderArg) {
1.141 + aheader = aheaderArg;
1.142 + remainingHeader = nullptr;
1.143 + }
1.144 +
1.145 + void init(JS::Zone *zone, AllocKind kind) {
1.146 + aheader = zone->allocator.arenas.getFirstArena(kind);
1.147 + remainingHeader = zone->allocator.arenas.getFirstArenaToSweep(kind);
1.148 + if (!aheader) {
1.149 + aheader = remainingHeader;
1.150 + remainingHeader = nullptr;
1.151 + }
1.152 + }
1.153 +
1.154 + bool done() {
1.155 + return !aheader;
1.156 + }
1.157 +
1.158 + ArenaHeader *get() {
1.159 + return aheader;
1.160 + }
1.161 +
1.162 + void next() {
1.163 + aheader = aheader->next;
1.164 + if (!aheader) {
1.165 + aheader = remainingHeader;
1.166 + remainingHeader = nullptr;
1.167 + }
1.168 + }
1.169 +};
1.170 +
1.171 +class CellIterImpl
1.172 +{
1.173 + size_t firstThingOffset;
1.174 + size_t thingSize;
1.175 + ArenaIter aiter;
1.176 + FreeSpan firstSpan;
1.177 + const FreeSpan *span;
1.178 + uintptr_t thing;
1.179 + Cell *cell;
1.180 +
1.181 + protected:
1.182 + CellIterImpl() {
1.183 + }
1.184 +
1.185 + void initSpan(JS::Zone *zone, AllocKind kind) {
1.186 + JS_ASSERT(zone->allocator.arenas.isSynchronizedFreeList(kind));
1.187 + firstThingOffset = Arena::firstThingOffset(kind);
1.188 + thingSize = Arena::thingSize(kind);
1.189 + firstSpan.initAsEmpty();
1.190 + span = &firstSpan;
1.191 + thing = span->first;
1.192 + }
1.193 +
1.194 + void init(ArenaHeader *singleAheader) {
1.195 + initSpan(singleAheader->zone, singleAheader->getAllocKind());
1.196 + aiter.init(singleAheader);
1.197 + next();
1.198 + aiter.init();
1.199 + }
1.200 +
1.201 + void init(JS::Zone *zone, AllocKind kind) {
1.202 + initSpan(zone, kind);
1.203 + aiter.init(zone, kind);
1.204 + next();
1.205 + }
1.206 +
1.207 + public:
1.208 + bool done() const {
1.209 + return !cell;
1.210 + }
1.211 +
1.212 + template<typename T> T *get() const {
1.213 + JS_ASSERT(!done());
1.214 + return static_cast<T *>(cell);
1.215 + }
1.216 +
1.217 + Cell *getCell() const {
1.218 + JS_ASSERT(!done());
1.219 + return cell;
1.220 + }
1.221 +
1.222 + void next() {
1.223 + for (;;) {
1.224 + if (thing != span->first)
1.225 + break;
1.226 + if (MOZ_LIKELY(span->hasNext())) {
1.227 + thing = span->last + thingSize;
1.228 + span = span->nextSpan();
1.229 + break;
1.230 + }
1.231 + if (aiter.done()) {
1.232 + cell = nullptr;
1.233 + return;
1.234 + }
1.235 + ArenaHeader *aheader = aiter.get();
1.236 + firstSpan = aheader->getFirstFreeSpan();
1.237 + span = &firstSpan;
1.238 + thing = aheader->arenaAddress() | firstThingOffset;
1.239 + aiter.next();
1.240 + }
1.241 + cell = reinterpret_cast<Cell *>(thing);
1.242 + thing += thingSize;
1.243 + }
1.244 +};
1.245 +
1.246 +class CellIterUnderGC : public CellIterImpl
1.247 +{
1.248 + public:
1.249 + CellIterUnderGC(JS::Zone *zone, AllocKind kind) {
1.250 +#ifdef JSGC_GENERATIONAL
1.251 + JS_ASSERT(zone->runtimeFromAnyThread()->gcNursery.isEmpty());
1.252 +#endif
1.253 + JS_ASSERT(zone->runtimeFromAnyThread()->isHeapBusy());
1.254 + init(zone, kind);
1.255 + }
1.256 +
1.257 + CellIterUnderGC(ArenaHeader *aheader) {
1.258 + JS_ASSERT(aheader->zone->runtimeFromAnyThread()->isHeapBusy());
1.259 + init(aheader);
1.260 + }
1.261 +};
1.262 +
1.263 +class CellIter : public CellIterImpl
1.264 +{
1.265 + ArenaLists *lists;
1.266 + AllocKind kind;
1.267 +#ifdef DEBUG
1.268 + size_t *counter;
1.269 +#endif
1.270 + public:
1.271 + CellIter(JS::Zone *zone, AllocKind kind)
1.272 + : lists(&zone->allocator.arenas),
1.273 + kind(kind)
1.274 + {
1.275 + /*
1.276 + * We have a single-threaded runtime, so there's no need to protect
1.277 + * against other threads iterating or allocating. However, we do have
1.278 + * background finalization; we have to wait for this to finish if it's
1.279 + * currently active.
1.280 + */
1.281 + if (IsBackgroundFinalized(kind) &&
1.282 + zone->allocator.arenas.needBackgroundFinalizeWait(kind))
1.283 + {
1.284 + gc::FinishBackgroundFinalize(zone->runtimeFromMainThread());
1.285 + }
1.286 +
1.287 +#ifdef JSGC_GENERATIONAL
1.288 + /* Evict the nursery before iterating so we can see all things. */
1.289 + JSRuntime *rt = zone->runtimeFromMainThread();
1.290 + if (!rt->gcNursery.isEmpty())
1.291 + MinorGC(rt, JS::gcreason::EVICT_NURSERY);
1.292 +#endif
1.293 +
1.294 + if (lists->isSynchronizedFreeList(kind)) {
1.295 + lists = nullptr;
1.296 + } else {
1.297 + JS_ASSERT(!zone->runtimeFromMainThread()->isHeapBusy());
1.298 + lists->copyFreeListToArena(kind);
1.299 + }
1.300 +
1.301 +#ifdef DEBUG
1.302 + /* Assert that no GCs can occur while a CellIter is live. */
1.303 + counter = &zone->runtimeFromAnyThread()->noGCOrAllocationCheck;
1.304 + ++*counter;
1.305 +#endif
1.306 +
1.307 + init(zone, kind);
1.308 + }
1.309 +
1.310 + ~CellIter() {
1.311 +#ifdef DEBUG
1.312 + JS_ASSERT(*counter > 0);
1.313 + --*counter;
1.314 +#endif
1.315 + if (lists)
1.316 + lists->clearFreeListInArena(kind);
1.317 + }
1.318 +};
1.319 +
1.320 +class GCZonesIter
1.321 +{
1.322 + private:
1.323 + ZonesIter zone;
1.324 +
1.325 + public:
1.326 + GCZonesIter(JSRuntime *rt) : zone(rt, WithAtoms) {
1.327 + if (!zone->isCollecting())
1.328 + next();
1.329 + }
1.330 +
1.331 + bool done() const { return zone.done(); }
1.332 +
1.333 + void next() {
1.334 + JS_ASSERT(!done());
1.335 + do {
1.336 + zone.next();
1.337 + } while (!zone.done() && !zone->isCollecting());
1.338 + }
1.339 +
1.340 + JS::Zone *get() const {
1.341 + JS_ASSERT(!done());
1.342 + return zone;
1.343 + }
1.344 +
1.345 + operator JS::Zone *() const { return get(); }
1.346 + JS::Zone *operator->() const { return get(); }
1.347 +};
1.348 +
1.349 +typedef CompartmentsIterT<GCZonesIter> GCCompartmentsIter;
1.350 +
1.351 +/* Iterates over all zones in the current zone group. */
1.352 +class GCZoneGroupIter {
1.353 + private:
1.354 + JS::Zone *current;
1.355 +
1.356 + public:
1.357 + GCZoneGroupIter(JSRuntime *rt) {
1.358 + JS_ASSERT(rt->isHeapBusy());
1.359 + current = rt->gcCurrentZoneGroup;
1.360 + }
1.361 +
1.362 + bool done() const { return !current; }
1.363 +
1.364 + void next() {
1.365 + JS_ASSERT(!done());
1.366 + current = current->nextNodeInGroup();
1.367 + }
1.368 +
1.369 + JS::Zone *get() const {
1.370 + JS_ASSERT(!done());
1.371 + return current;
1.372 + }
1.373 +
1.374 + operator JS::Zone *() const { return get(); }
1.375 + JS::Zone *operator->() const { return get(); }
1.376 +};
1.377 +
1.378 +typedef CompartmentsIterT<GCZoneGroupIter> GCCompartmentGroupIter;
1.379 +
1.380 +#ifdef JSGC_GENERATIONAL
1.381 +/*
1.382 + * Attempt to allocate a new GC thing out of the nursery. If there is not enough
1.383 + * room in the nursery or there is an OOM, this method will return nullptr.
1.384 + */
1.385 +template <AllowGC allowGC>
1.386 +inline JSObject *
1.387 +TryNewNurseryObject(ThreadSafeContext *cxArg, size_t thingSize, size_t nDynamicSlots)
1.388 +{
1.389 + JSContext *cx = cxArg->asJSContext();
1.390 +
1.391 + JS_ASSERT(!IsAtomsCompartment(cx->compartment()));
1.392 + JSRuntime *rt = cx->runtime();
1.393 + Nursery &nursery = rt->gcNursery;
1.394 + JSObject *obj = nursery.allocateObject(cx, thingSize, nDynamicSlots);
1.395 + if (obj)
1.396 + return obj;
1.397 + if (allowGC && !rt->mainThread.suppressGC) {
1.398 + MinorGC(cx, JS::gcreason::OUT_OF_NURSERY);
1.399 +
1.400 + /* Exceeding gcMaxBytes while tenuring can disable the Nursery. */
1.401 + if (nursery.isEnabled()) {
1.402 + JSObject *obj = nursery.allocateObject(cx, thingSize, nDynamicSlots);
1.403 + JS_ASSERT(obj);
1.404 + return obj;
1.405 + }
1.406 + }
1.407 + return nullptr;
1.408 +}
1.409 +#endif /* JSGC_GENERATIONAL */
1.410 +
1.411 +static inline bool
1.412 +PossiblyFail()
1.413 +{
1.414 + JS_OOM_POSSIBLY_FAIL();
1.415 + return true;
1.416 +}
1.417 +
1.418 +template <AllowGC allowGC>
1.419 +static inline bool
1.420 +CheckAllocatorState(ThreadSafeContext *cx, AllocKind kind)
1.421 +{
1.422 + if (!cx->isJSContext())
1.423 + return true;
1.424 +
1.425 + JSContext *ncx = cx->asJSContext();
1.426 + JSRuntime *rt = ncx->runtime();
1.427 +#if defined(JS_GC_ZEAL) || defined(DEBUG)
1.428 + JS_ASSERT_IF(rt->isAtomsCompartment(ncx->compartment()),
1.429 + kind == FINALIZE_STRING ||
1.430 + kind == FINALIZE_FAT_INLINE_STRING ||
1.431 + kind == FINALIZE_JITCODE);
1.432 + JS_ASSERT(!rt->isHeapBusy());
1.433 + JS_ASSERT(!rt->noGCOrAllocationCheck);
1.434 +#endif
1.435 +
1.436 + // For testing out of memory conditions
1.437 + if (!PossiblyFail()) {
1.438 + js_ReportOutOfMemory(cx);
1.439 + return false;
1.440 + }
1.441 +
1.442 + if (allowGC) {
1.443 +#ifdef JS_GC_ZEAL
1.444 + if (rt->needZealousGC())
1.445 + js::gc::RunDebugGC(ncx);
1.446 +#endif
1.447 +
1.448 + if (rt->interrupt) {
1.449 + // Invoking the interrupt callback can fail and we can't usefully
1.450 + // handle that here. Just check in case we need to collect instead.
1.451 + js::gc::GCIfNeeded(ncx);
1.452 + }
1.453 + }
1.454 +
1.455 + return true;
1.456 +}
1.457 +
1.458 +template <typename T>
1.459 +static inline void
1.460 +CheckIncrementalZoneState(ThreadSafeContext *cx, T *t)
1.461 +{
1.462 +#ifdef DEBUG
1.463 + if (!cx->isJSContext())
1.464 + return;
1.465 +
1.466 + Zone *zone = cx->asJSContext()->zone();
1.467 + JS_ASSERT_IF(t && zone->wasGCStarted() && (zone->isGCMarking() || zone->isGCSweeping()),
1.468 + t->arenaHeader()->allocatedDuringIncremental);
1.469 +#endif
1.470 +}
1.471 +
1.472 +/*
1.473 + * Allocate a new GC thing. After a successful allocation the caller must
1.474 + * fully initialize the thing before calling any function that can potentially
1.475 + * trigger GC. This will ensure that GC tracing never sees junk values stored
1.476 + * in the partially initialized thing.
1.477 + */
1.478 +
1.479 +template <AllowGC allowGC>
1.480 +inline JSObject *
1.481 +AllocateObject(ThreadSafeContext *cx, AllocKind kind, size_t nDynamicSlots, InitialHeap heap)
1.482 +{
1.483 + size_t thingSize = Arena::thingSize(kind);
1.484 +
1.485 + JS_ASSERT(thingSize == Arena::thingSize(kind));
1.486 + if (!CheckAllocatorState<allowGC>(cx, kind))
1.487 + return nullptr;
1.488 +
1.489 +#ifdef JSGC_GENERATIONAL
1.490 + if (cx->hasNursery() && ShouldNurseryAllocate(cx->nursery(), kind, heap)) {
1.491 + JSObject *obj = TryNewNurseryObject<allowGC>(cx, thingSize, nDynamicSlots);
1.492 + if (obj)
1.493 + return obj;
1.494 + }
1.495 +#endif
1.496 +
1.497 + HeapSlot *slots = nullptr;
1.498 + if (nDynamicSlots) {
1.499 + slots = cx->pod_malloc<HeapSlot>(nDynamicSlots);
1.500 + if (MOZ_UNLIKELY(!slots))
1.501 + return nullptr;
1.502 + js::Debug_SetSlotRangeToCrashOnTouch(slots, nDynamicSlots);
1.503 + }
1.504 +
1.505 + JSObject *obj = static_cast<JSObject *>(cx->allocator()->arenas.allocateFromFreeList(kind, thingSize));
1.506 + if (!obj)
1.507 + obj = static_cast<JSObject *>(js::gc::ArenaLists::refillFreeList<allowGC>(cx, kind));
1.508 +
1.509 + if (obj)
1.510 + obj->setInitialSlots(slots);
1.511 + else
1.512 + js_free(slots);
1.513 +
1.514 + CheckIncrementalZoneState(cx, obj);
1.515 + return obj;
1.516 +}
1.517 +
1.518 +template <typename T, AllowGC allowGC>
1.519 +inline T *
1.520 +AllocateNonObject(ThreadSafeContext *cx)
1.521 +{
1.522 + AllocKind kind = MapTypeToFinalizeKind<T>::kind;
1.523 + size_t thingSize = sizeof(T);
1.524 +
1.525 + JS_ASSERT(thingSize == Arena::thingSize(kind));
1.526 + if (!CheckAllocatorState<allowGC>(cx, kind))
1.527 + return nullptr;
1.528 +
1.529 + T *t = static_cast<T *>(cx->allocator()->arenas.allocateFromFreeList(kind, thingSize));
1.530 + if (!t)
1.531 + t = static_cast<T *>(js::gc::ArenaLists::refillFreeList<allowGC>(cx, kind));
1.532 +
1.533 + CheckIncrementalZoneState(cx, t);
1.534 + return t;
1.535 +}
1.536 +
1.537 +/*
1.538 + * When allocating for initialization from a cached object copy, we will
1.539 + * potentially destroy the cache entry we want to copy if we allow GC. On the
1.540 + * other hand, since these allocations are extremely common, we don't want to
1.541 + * delay GC from these allocation sites. Instead we allow the GC, but still
1.542 + * fail the allocation, forcing the non-cached path.
1.543 + */
1.544 +template <AllowGC allowGC>
1.545 +inline JSObject *
1.546 +AllocateObjectForCacheHit(JSContext *cx, AllocKind kind, InitialHeap heap)
1.547 +{
1.548 +#ifdef JSGC_GENERATIONAL
1.549 + if (ShouldNurseryAllocate(cx->nursery(), kind, heap)) {
1.550 + size_t thingSize = Arena::thingSize(kind);
1.551 +
1.552 + JS_ASSERT(thingSize == Arena::thingSize(kind));
1.553 + if (!CheckAllocatorState<NoGC>(cx, kind))
1.554 + return nullptr;
1.555 +
1.556 + JSObject *obj = TryNewNurseryObject<NoGC>(cx, thingSize, 0);
1.557 + if (!obj && allowGC) {
1.558 + MinorGC(cx, JS::gcreason::OUT_OF_NURSERY);
1.559 + return nullptr;
1.560 + }
1.561 + return obj;
1.562 + }
1.563 +#endif
1.564 +
1.565 + JSObject *obj = AllocateObject<NoGC>(cx, kind, 0, heap);
1.566 + if (!obj && allowGC) {
1.567 + MaybeGC(cx);
1.568 + return nullptr;
1.569 + }
1.570 +
1.571 + return obj;
1.572 +}
1.573 +
1.574 +} /* namespace gc */
1.575 +
1.576 +template <js::AllowGC allowGC>
1.577 +inline JSObject *
1.578 +NewGCObject(js::ThreadSafeContext *cx, js::gc::AllocKind kind, size_t nDynamicSlots, js::gc::InitialHeap heap)
1.579 +{
1.580 + JS_ASSERT(kind >= js::gc::FINALIZE_OBJECT0 && kind <= js::gc::FINALIZE_OBJECT_LAST);
1.581 + return js::gc::AllocateObject<allowGC>(cx, kind, nDynamicSlots, heap);
1.582 +}
1.583 +
1.584 +template <js::AllowGC allowGC>
1.585 +inline jit::JitCode *
1.586 +NewJitCode(js::ThreadSafeContext *cx)
1.587 +{
1.588 + return gc::AllocateNonObject<jit::JitCode, allowGC>(cx);
1.589 +}
1.590 +
1.591 +inline
1.592 +types::TypeObject *
1.593 +NewTypeObject(js::ThreadSafeContext *cx)
1.594 +{
1.595 + return gc::AllocateNonObject<types::TypeObject, js::CanGC>(cx);
1.596 +}
1.597 +
1.598 +} /* namespace js */
1.599 +
1.600 +template <js::AllowGC allowGC>
1.601 +inline JSString *
1.602 +js_NewGCString(js::ThreadSafeContext *cx)
1.603 +{
1.604 + return js::gc::AllocateNonObject<JSString, allowGC>(cx);
1.605 +}
1.606 +
1.607 +template <js::AllowGC allowGC>
1.608 +inline JSFatInlineString *
1.609 +js_NewGCFatInlineString(js::ThreadSafeContext *cx)
1.610 +{
1.611 + return js::gc::AllocateNonObject<JSFatInlineString, allowGC>(cx);
1.612 +}
1.613 +
1.614 +inline JSExternalString *
1.615 +js_NewGCExternalString(js::ThreadSafeContext *cx)
1.616 +{
1.617 + return js::gc::AllocateNonObject<JSExternalString, js::CanGC>(cx);
1.618 +}
1.619 +
1.620 +inline JSScript *
1.621 +js_NewGCScript(js::ThreadSafeContext *cx)
1.622 +{
1.623 + return js::gc::AllocateNonObject<JSScript, js::CanGC>(cx);
1.624 +}
1.625 +
1.626 +inline js::LazyScript *
1.627 +js_NewGCLazyScript(js::ThreadSafeContext *cx)
1.628 +{
1.629 + return js::gc::AllocateNonObject<js::LazyScript, js::CanGC>(cx);
1.630 +}
1.631 +
1.632 +inline js::Shape *
1.633 +js_NewGCShape(js::ThreadSafeContext *cx)
1.634 +{
1.635 + return js::gc::AllocateNonObject<js::Shape, js::CanGC>(cx);
1.636 +}
1.637 +
1.638 +template <js::AllowGC allowGC>
1.639 +inline js::BaseShape *
1.640 +js_NewGCBaseShape(js::ThreadSafeContext *cx)
1.641 +{
1.642 + return js::gc::AllocateNonObject<js::BaseShape, allowGC>(cx);
1.643 +}
1.644 +
1.645 +#endif /* jsgcinlines_h */
