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inheritance of C/C++ Addons doesn't work #9288

Description

@stixx200
  • Version: v6.9.1
  • Platform: Win7 SP1, 64-Bit
  • Subsystem:

There is an issue with the inheritance of native node addons in Node v6.9.1.
The problem doesn't exist with Node v4.6.1 or Node v7.0.0.

To reconstruct, i used the example code of Node docs (https://nodejs.org/dist/latest-v6.x/docs/api/addons.html#addons_wrapping_c_objects) and ran the code with this example:

"use strict";
const addon = require('./build/Release/addon');
class Test extends addon.MyObject {
    constructor() {
        super();
        this.doOutput();
    }
    doOutput() {
        console.log("hello world");
    }
}
var obj = new Test();

Result is:

TypeError: this.doOutput is not a function

The problem is, that the this is empty after super() call.

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