Electric Imp imp.wakeup/bindenv example

wakeup_bindenv_example.nut

local global_this = this;

class Test {
    
    var1 = null;
    var2 = null;
    timer = null;
    test_this = null;

    constructor(one, two) {
        var1 = one;
        var2 = two;
        test_this = this;
    }
    
    function printOne() {
        server.log(var1);
    }
    
    function printTwo() {
        server.log(var2);
    }
    
    function startTimer() {
        server.log("startTimer this is equal to test_this:");
        server.log(this == test_this);
        printOne();
        printTwo();
        timer = imp.wakeup(5, startTimer.bindenv(this));
    }
    
    function stopTimer() {
        server.log("stopping timer")
        imp.cancelwakeup(timer);
    }
    
    function badTimer() {
        server.log("badTimer this is equal to test_this:");
        server.log(this == test_this)
        local bad_timer = imp.wakeup(5, function() {
            server.log("in badTimer wakeup this is equal to global_this: ");
            server.log(this == global_this);
        });
        imp.wakeup(10, function() {
            server.log("stopping bad timer");
            imp.cancelwakeup(bad_timer);
        })
    }
    
}

// Initialize and use Test class
t <- Test(1, 2);
t.printOne;
t.printTwo;
t.startTimer();
imp.wakeup(20, t.stopTimer.bindenv(t));
imp.wakeup(25, function() {
    t.badTimer();
});