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Avoid unnecessary JS_WrapValue calls for DOM reflectors.

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This commit is contained in:
Josh Matthews 2016-07-11 16:56:04 -04:00
parent 184b1ba91b
commit 7539eb496b
1 changed files with 11 additions and 5 deletions
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16
components/script/dom/bindings/conversions.rs
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@ -47,9 +47,9 @@ use js::glue::{RUST_JSID_IS_STRING, RUST_JSID_TO_STRING, UnwrapObject};
use js::jsapi::{HandleId, HandleObject, HandleValue, JSClass, JSContext};
use js::jsapi::{JSObject, JSString, JS_GetArrayBufferViewType, JS_GetClass};
use js::jsapi::{JS_GetLatin1StringCharsAndLength, JS_GetObjectAsArrayBufferView};
use js::jsapi::{JS_GetReservedSlot, JS_GetTwoByteStringCharsAndLength};
use js::jsapi::{JS_GetReservedSlot, JS_GetTwoByteStringCharsAndLength, ToWindowProxyIfWindow};
use js::jsapi::{JS_IsArrayObject, JS_NewStringCopyN, JS_StringHasLatin1Chars};
use js::jsapi::{JS_WrapValue, MutableHandleValue, Type};
use js::jsapi::{JS_WrapValue, MutableHandleValue, Type, IsObjectInContextCompartment};
use js::jsval::{ObjectValue, StringValue};
use js::rust::ToString;
use libc;
@ -276,9 +276,15 @@ impl ToJSValConvertible for Reflector {
unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue) {
let obj = self.get_jsobject().get();
assert!(!obj.is_null());
rval.set(ObjectValue(&*obj));
if !JS_WrapValue(cx, rval) {
panic!("JS_WrapValue failed.");
let same_compartment = IsObjectInContextCompartment(obj, cx);
if same_compartment {
rval.set(ObjectValue(&*ToWindowProxyIfWindow(obj)));
} else {
rval.set(ObjectValue(&*obj));
if !JS_WrapValue(cx, rval) {
panic!("JS_WrapValue failed.");
}
}
}
}