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      <a href="../../index.html">All files</a> / <a href="index.html">coa/lib</a> arg.js
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        <span class="strong">100% </span>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict';
&nbsp;
const
    CoaParam = require('./coaparam'),
    Color = require('./color');
&nbsp;
/**
 * Argument
 *
 * Unnamed entity. From command line arguments passed as list of unnamed values.
 *
 * @class Arg
 * @extends CoaParam
 */
module.exports = class Arg extends CoaParam {
    /**
     * @constructs
     * @param {COA.Cmd} cmd - parent command
     */
    constructor(cmd) {
        super(cmd);
&nbsp;
        this._cmd._args.push(this);
    }
&nbsp;
    _saveVal(args, val) {
        this._val &amp;&amp; (<span class="branch-1 cbranch-no" title="branch not covered" >val = this._val(val))</span>;
&nbsp;
        const name = this._name;
        this._arr
            ? (args[name] || (args[name] = [])).push(val)
            : (args[name] = val);
&nbsp;
        return val;
    }
&nbsp;
    _parse(arg, args) {
        return this._saveVal(args, arg);
    }
&nbsp;
    _checkParsed(opts, args) {
        return !args.hasOwnProperty(this._name);
    }
&nbsp;
    _usage() {
        const res = [];
&nbsp;
        res.push(Color('lpurple', this._name.toUpperCase()), ' : ', this._title);
&nbsp;
        this._req &amp;&amp; res.push(' ', Color('lred', '(required)'));
&nbsp;
        return res.join('');
    }
&nbsp;
    _requiredText() {
        return `Missing required argument:\n  ${this._usage()}`;
    }
};
&nbsp;</pre></td></tr>
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