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Auto merge of #12395 - jdm:nowrap, r=Ms2ger

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Avoid calling JS_WrapValue for same-compartment DOM reflectors

This change shaves off 15-20ns per iteration of the node.firstChild getter test in tests/html/bindings_perf.html. Based on [similar Gecko code](http://searchfox.org/mozilla-central/rev/f43c9e0ffa92e72dbdbcbf57eecf04a43d46da63/dom/bindings/BindingUtils.h#781).

---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix (partially) #12358

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This commit is contained in:
bors-servo 2016-07-12 05:50:46 -07:00 • committed by GitHub
commit e2e7013e76
2 changed files with 17 additions and 12 deletions
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13
components/script/dom/bindings/codegen/CodegenRust.py
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@ -5533,17 +5533,17 @@ class CGBindingRoot(CGThing):
'js::jsapi::{JSJitInfo_AliasSet, JSJitInfo_ArgType, AutoIdVector, CallArgs, FreeOp}',
'js::jsapi::{JSITER_SYMBOLS, JSPROP_ENUMERATE, JSPROP_PERMANENT, JSPROP_READONLY, JSPROP_SHARED}',
'js::jsapi::{JSCLASS_RESERVED_SLOTS_SHIFT, JSITER_HIDDEN, JSITER_OWNONLY}',
'js::jsapi::{GetGlobalForObjectCrossCompartment , GetPropertyKeys, Handle}',
'js::jsapi::{GetPropertyKeys, Handle}',
'js::jsapi::{HandleId, HandleObject, HandleValue, HandleValueArray}',
'js::jsapi::{INTERNED_STRING_TO_JSID, IsCallable, JS_CallFunctionValue}',
'js::jsapi::{JS_ComputeThis, JS_CopyPropertiesFrom, JS_ForwardGetPropertyTo}',
'js::jsapi::{JS_CopyPropertiesFrom, JS_ForwardGetPropertyTo}',
'js::jsapi::{JS_GetClass, JS_GetErrorPrototype, JS_GetFunctionPrototype}',
'js::jsapi::{JS_GetGlobalForObject, JS_GetObjectPrototype, JS_GetProperty}',
'js::jsapi::{JS_GetPropertyById, JS_GetPropertyDescriptorById, JS_GetReservedSlot}',
'js::jsapi::{JS_HasProperty, JS_HasPropertyById, JS_InitializePropertiesFromCompatibleNativeObject}',
'js::jsapi::{JS_AtomizeAndPinString, JS_IsExceptionPending, JS_NewObject, JS_NewObjectWithGivenProto}',
'js::jsapi::{JS_NewObjectWithoutMetadata, JS_NewStringCopyZ, JS_SetProperty}',
'js::jsapi::{JS_SetPrototype, JS_SetReservedSlot, JS_WrapValue, JSAutoCompartment}',
'js::jsapi::{JS_AtomizeAndPinString, JS_NewObject, JS_NewObjectWithGivenProto}',
'js::jsapi::{JS_NewObjectWithoutMetadata, JS_SetProperty}',
'js::jsapi::{JS_SetPrototype, JS_SetReservedSlot, JSAutoCompartment}',
'js::jsapi::{JSContext, JSClass, JSFreeOp, JSFunctionSpec}',
'js::jsapi::{JSJitGetterCallArgs, JSJitInfo, JSJitMethodCallArgs, JSJitSetterCallArgs}',
'js::jsapi::{JSNative, JSObject, JSNativeWrapper, JSPropertySpec}',
@ -5556,8 +5556,7 @@ class CGBindingRoot(CGThing):
'js::jsval::{NullValue, UndefinedValue}',
'js::glue::{CallJitMethodOp, CallJitGetterOp, CallJitSetterOp, CreateProxyHandler}',
'js::glue::{GetProxyPrivate, NewProxyObject, ProxyTraps}',
'js::glue::{RUST_FUNCTION_VALUE_TO_JITINFO}',
'js::glue::{RUST_JS_NumberValue, RUST_JSID_IS_STRING, int_to_jsid}',
'js::glue::{RUST_JSID_IS_STRING, int_to_jsid}',
'js::glue::AppendToAutoIdVector',
'js::rust::{GCMethods, define_methods, define_properties}',
'dom::bindings',