Hi all,

I'm new to v8 and I want to know more about the equality check (==) between 
two v8::Local<v8::Object>.

Currently I'm using instrumenting chromium browser. In chromium, registered 
event listeners are stored inside a map like data structure, and I can use 
the getListenerObject() method to get the v8::Local<v8::Object> correspond 
to each event listener, which could be a function reference, or reference 
to an object with handleEvent property.

My goal is to tell if two different event listener will invoke the same 
javascript or not. Someone told me that I can do this by comparing two 
v8::Local<v8::Object> by value. I followed the suggestion and implements a 
function that returns unique integer ID for unique v8::Local<v8::Object> 
value. However when I test it on real webpage, I found that almost every 
event listeners are mapped to the same ID. 

I'm not confident with this result so I want to ask a question here. What 
does the equality check (==) between two v8::Local<v8::Object> check? Does 
it implies that the two object are structurally equal (contains the same 
function/object reference), or it means something else?

Best regards, 
 

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