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javascriptc++node.jsv8

reference on primitive value by c++ native addon

For testing purposes, I want to reference on a js primitive value.

Is it possible with help of node.js c++ addon? How to do it?

let addon = require('./build/Release/mymodule.node')
let num1 = 999
let num2 = addon.ref(num1)

num1 ++

console.log(num1) // 1000
console.log(num2) // 1000
Solution

  • (V8 developer here.)

    V8 doesn't make this possible, neither with nor without Node C++ addons. The basic JavaScript rule that there are no references to primitives is baked very deeply into the engine design. If you wanted to change that, you'd have a new language and would have to write a new engine for it.

    So whatever your "testing purposes" are, I would recommend to find and pursue some other approach.