var warn = require("../tools/tools").warn;

function globalize (command, interpreter) {

    var key, next;

    key = command.getAttribute("name") || null;
    next = {doNext: true};

    if (key === null) {
        warn(interpreter.bus, "No variable name defined on globalize element.", command);
        return next;
    }

    if (typeof interpreter.runVars[key] === "undefined" || interpreter.runVars[key] === null) {
        warn(interpreter.bus, "Undefined local variable.", command);
        return next;
    }

    interpreter.globalVars.set(key, interpreter.runVars[key]);

    return next;
}

module.exports = globalize;