如何在 V8 引擎中获取 JavaScript 函数的执行上下文

问题描述

我想通过获取执行上下文或更具体的 JS 函数的作用域链来了解 JS 函数的调用关系.考虑这个例子:

I want to know the JS functions' calling relationship by getting the execution context or more specifically scope chain of a JS function. Consider this example:

function one() {

    var a = 1;
    two();

    function two() {

        var b = 2;
        three();

        function three() {

            var c = 3;
            alert(a + b + c);

        }

    }

}

one()​;

我想知道一个 JS 函数中的每个局部变量和函数声明.我想 JS 函数的作用域链也许可以给我我想要的信息.但是不知道从哪里可以得到V8引擎里面函数的作用域链，有没有人能帮帮我?非常感谢！

I want to know every local variable and function declarations inside one JS function. I think the scope chain of the JS function maybe can give me the information I want. But I don't know where can I get the function's scope chain inside the V8 engine.Can any one help me with it?Thank you very much!

推荐答案

无论何时您想查看当时的调用顺序，您都可以简单地调用:console.trace();

where ever you want to see the call sequence at that point, you can simply call:console.trace();

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