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script: Properly throw when "this" is not an object in a generic call.

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Emilio Cobos Álvarez 2017-09-17 08:01:35 +02:00
parent 5281fc1a44
commit 91f238f326
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3 changed files with 29 additions and 2 deletions
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8
components/script/dom/bindings/utils.rs
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@ -414,18 +414,22 @@ unsafe fn generic_call(cx: *mut JSContext,
-> bool)
-> bool {
let args = CallArgs::from_vp(vp, argc);
let info = RUST_FUNCTION_VALUE_TO_JITINFO(JS_CALLEE(cx, vp));
let proto_id = (*info).protoID;
let thisobj = args.thisv();
if !thisobj.get().is_null_or_undefined() && !thisobj.get().is_object() {
throw_invalid_this(cx, proto_id);
return false;
}
let obj = if thisobj.get().is_object() {
thisobj.get().to_object()
} else {
GetGlobalForObjectCrossCompartment(JS_CALLEE(cx, vp).to_object_or_null())
};
rooted!(in(cx) let obj = obj);
let info = RUST_FUNCTION_VALUE_TO_JITINFO(JS_CALLEE(cx, vp));
let proto_id = (*info).protoID;
let depth = (*info).depth;
let proto_check = |class: &'static DOMClass| {
class.interface_chain[depth as usize] as u16 == proto_id