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Use JS_SplicePrototype to set the right proto on the global, instead of JS_SetPrototype, since the latter will permanently deoptimize it.

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This commit is contained in:
Boris Zbarsky 2016-08-24 00:43:52 -04:00
parent 3993fde90a
commit 5341f852ce
1 changed files with 2 additions and 2 deletions
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4
components/script/dom/bindings/codegen/CodegenRust.py
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@ -2394,7 +2394,7 @@ Root::from_ref(&*raw)""" % {'copyUnforgeable': unforgeable, 'createObject': crea
let _ac = JSAutoCompartment::new(cx, obj.get());
rooted!(in(cx) let mut proto = ptr::null_mut());
GetProtoObject(cx, obj.handle(), proto.handle_mut());
JS_SetPrototype(cx, obj.handle(), proto.handle());
JS_SplicePrototype(cx, obj.handle(), proto.handle());
%(copyUnforgeable)s
@ -5530,7 +5530,7 @@ class CGBindingRoot(CGThing):
'js::jsapi::{JS_HasProperty, JS_HasPropertyById, JS_InitializePropertiesFromCompatibleNativeObject}',
'js::jsapi::{JS_AtomizeAndPinString, JS_NewObject, JS_NewObjectWithGivenProto}',
'js::jsapi::{JS_NewObjectWithoutMetadata, JS_SetProperty}',
'js::jsapi::{JS_SetPrototype, JS_SetReservedSlot, JSAutoCompartment}',
'js::jsapi::{JS_SplicePrototype, JS_SetReservedSlot, JSAutoCompartment}',
'js::jsapi::{JSContext, JSClass, JSFreeOp, JSFunctionSpec}',
'js::jsapi::{JSJitGetterCallArgs, JSJitInfo, JSJitMethodCallArgs, JSJitSetterCallArgs}',
'js::jsapi::{JSNative, JSObject, JSNativeWrapper, JSPropertySpec}',