Make use of ArrayObjects in favor of generic JS objects.

ArrayObjects has been a thing for years but been under-used. About time
they are used where prudent.

1 files changed, 10 insertions, 14 deletions

diff --git a/js/src/jsarray.h b/js/src/jsarray.h
index e22cde8810..ecde87c3bc 100644
--- a/js/src/jsarray.h
+++ b/js/src/jsarray.h
@@ -72,30 +72,30 @@ extern ArrayObject*
 NewDenseFullyAllocatedArrayWithTemplate(JSContext* cx, uint32_t length, JSObject* templateObject);
 
 /* Create a dense array with the same copy-on-write elements as another object. */
-extern JSObject*
+extern ArrayObject*
 NewDenseCopyOnWriteArray(JSContext* cx, HandleArrayObject templateObject, gc::InitialHeap heap);
 
 // The methods below can create either boxed or unboxed arrays.
 
-extern JSObject*
+extern ArrayObject*
 NewFullyAllocatedArrayTryUseGroup(ExclusiveContext* cx, HandleObjectGroup group, size_t length,
                                   NewObjectKind newKind = GenericObject);
 
-extern JSObject*
+extern ArrayObject*
 NewPartlyAllocatedArrayTryUseGroup(ExclusiveContext* cx, HandleObjectGroup group, size_t length);
 
-extern JSObject*
+extern ArrayObject*
 NewFullyAllocatedArrayTryReuseGroup(JSContext* cx, JSObject* obj, size_t length,
                                     NewObjectKind newKind = GenericObject);
 
-extern JSObject*
+extern ArrayObject*
 NewPartlyAllocatedArrayTryReuseGroup(JSContext* cx, JSObject* obj, size_t length);
 
-extern JSObject*
+extern ArrayObject*
 NewFullyAllocatedArrayForCallingAllocationSite(JSContext* cx, size_t length,
                                                NewObjectKind newKind = GenericObject);
 
-extern JSObject*
+extern ArrayObject*
 NewPartlyAllocatedArrayForCallingAllocationSite(JSContext* cx, size_t length, HandleObject proto);
 
 enum class ShouldUpdateTypes
@@ -104,17 +104,13 @@ enum class ShouldUpdateTypes
     DontUpdate
 };
 
-extern bool
-MaybeAnalyzeBeforeCreatingLargeArray(ExclusiveContext* cx, HandleObjectGroup group,
-                                     const Value* vp, size_t length);
-
-extern JSObject*
+extern ArrayObject*
 NewCopiedArrayTryUseGroup(ExclusiveContext* cx, HandleObjectGroup group,
                           const Value* vp, size_t length,
                           NewObjectKind newKind = GenericObject,
                           ShouldUpdateTypes updateTypes = ShouldUpdateTypes::Update);
 
-extern JSObject*
+extern ArrayObject*
 NewCopiedArrayForCallingAllocationSite(JSContext* cx, const Value* vp, size_t length,
                                        HandleObject proto = nullptr);
 
@@ -202,7 +198,7 @@ array_splice(JSContext* cx, unsigned argc, js::Value* vp);
 extern bool
 NewbornArrayPush(JSContext* cx, HandleObject obj, const Value& v);
 
-extern JSObject*
+extern ArrayObject*
 ArrayConstructorOneArg(JSContext* cx, HandleObjectGroup group, int32_t lengthInt);
 
 #ifdef DEBUG