Bug 1105069 - Part 4: Convert IsIncrementalReferenceBarrierNeededTenuredGCThing to GCCellPtr; r=jonco

--HG--
extra : rebase_source : b8b403745c98ec09e29340aa74a801bd633f0483

js/public/GCAPI.h

@@ -493,7 +493,7 @@ ExposeGCThingToActiveJS(JS::GCCellPtr thing)
     if (IsInsideNursery(thing))
         return;
 #endif
-    if (JS::IsIncrementalBarrierNeededOnTenuredGCThing(rt, thing, thing.kind()))
+    if (IsIncrementalBarrierNeededOnTenuredGCThing(rt, thing))
         JS::IncrementalReferenceBarrier(thing, thing.kind());
     else if (JS::GCThingIsMarkedGray(thing))
         JS::UnmarkGrayGCThingRecursively(thing, thing.kind());
@@ -536,7 +536,7 @@ MarkGCThingAsLive(JSRuntime *rt_, void *thing, JSGCTraceKind kind)
     if (js::gc::IsInsideNursery((js::gc::Cell *)thing))
         return;
 #endif
-    if (IsIncrementalBarrierNeededOnTenuredGCThing(rt, thing, kind))
+    if (js::gc::IsIncrementalBarrierNeededOnTenuredGCThing(rt, GCCellPtr(thing, kind)))
         IncrementalReferenceBarrier(thing, kind);
 }
 

js/public/HeapAPI.h

@@ -342,7 +342,6 @@ IsInsideNursery(const js::gc::Cell *cell)
 }
 
 } /* namespace gc */
-
 } /* namespace js */
 
 namespace JS {
@@ -378,19 +377,25 @@ GCThingIsMarkedGray(void *thing)
     return *word & mask;
 }
 
+} /* namespace JS */
+
+namespace js {
+namespace gc {
+
 static MOZ_ALWAYS_INLINE bool
-IsIncrementalBarrierNeededOnTenuredGCThing(shadow::Runtime *rt, void *thing, JSGCTraceKind kind)
+IsIncrementalBarrierNeededOnTenuredGCThing(JS::shadow::Runtime *rt, const JS::GCCellPtr thing)
 {
     MOZ_ASSERT(thing);
 #ifdef JSGC_GENERATIONAL
-    MOZ_ASSERT(!js::gc::IsInsideNursery((js::gc::Cell *)thing));
+    MOZ_ASSERT(!js::gc::IsInsideNursery(thing));
 #endif
     if (!rt->needsIncrementalBarrier())
         return false;
-    JS::Zone *zone = GetTenuredGCThingZone(thing);
-    return reinterpret_cast<shadow::Zone *>(zone)->needsIncrementalBarrier();
+    JS::Zone *zone = JS::GetTenuredGCThingZone(thing);
+    return JS::shadow::Zone::asShadowZone(zone)->needsIncrementalBarrier();
 }
 
-} /* namespace JS */
+} /* namespace gc */
+} /* namespace js */
 
 #endif /* js_HeapAPI_h */