$ jsctags .
Property '77' of object ,,function _semicolon(n, fr) {
    var nexp = n.expression, ans = evalExp[nexp.type](nexp, fr);
    ans.v = n.kreg;
    return ans;
  },,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,function _next(n, fr) { return new Ans(n.kreg, fr); },,function _for_in(n, fr) {
    var av = BOTTOM, ans = evalExp[n.object.type](n.object, fr),
      errval = ans.err;
    ans.v.forEachObj(function(o) {
        if (o.hasNumericProp()) av = avjoin(av, ANUM);
        if (o.hasStringProp()) av = avjoin(av, ASTR);
      });
    ans.v = av;
    ans = evalLval[n.iterator.type](n.iterator, ans);
    errval = maybeavjoin(errval, ans.err);
    ans.v = n.kreg;
    return ans;
  },,,,,,,,,,,,,,,,,,,function _next(n, fr) { return new Ans(n.kreg, fr); },function _catch(n, fr) { return new Ans(n.block, fr); },,,,function _next(n, fr) { return new Ans(n.kreg, fr); },,function _next(n, fr) { return new Ans(n.kreg, fr); },,,,function _next(n, fr) { return new Ans(n.kreg, fr); },function _next(n, fr) { return new Ans(n.kreg, fr); },,function _next(n, fr) { return new Ans(n.kreg, fr); },,,,,,,function _next(n, fr) { return new Ans(n.kreg, fr); },,function _throw(n, fr) {
    var ans = evalExp[n.exception.type](n.exception, fr);
    ans.err = maybeavjoin(ans.err, ans.v);
    ans.v = n.kreg;
    return ans;
  },,function _next(n, fr) { return new Ans(n.kreg, fr); },,,,,function _next(n, fr) { return new Ans(n.kreg, fr); } is not a function

node.js:134
        throw e; // process.nextTick error, or 'error' event on first tick
        ^
TypeError: Property '77' of object ,,function _semicolon(n, fr) {
    var nexp = n.expression, ans = evalExp[nexp.type](nexp, fr);
    ans.v = n.kreg;
    return ans;
  },,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,function _next(n, fr) { return new Ans(n.kreg, fr); },,function _for_in(n, fr) {
    var av = BOTTOM, ans = evalExp[n.object.type](n.object, fr),
      errval = ans.err;
    ans.v.forEachObj(function(o) {
        if (o.hasNumericProp()) av = avjoin(av, ANUM);
        if (o.hasStringProp()) av = avjoin(av, ASTR);
      });
    ans.v = av;
    ans = evalLval[n.iterator.type](n.iterator, ans);
    errval = maybeavjoin(errval, ans.err);
    ans.v = n.kreg;
    return ans;
  },,,,,,,,,,,,,,,,,,,function _next(n, fr) { return new Ans(n.kreg, fr); },function _catch(n, fr) { return new Ans(n.block, fr); },,,,function _next(n, fr) { return new Ans(n.kreg, fr); },,function _next(n, fr) { return new Ans(n.kreg, fr); },,,,function _next(n, fr) { return new Ans(n.kreg, fr); },function _next(n, fr) { return new Ans(n.kreg, fr); },,function _next(n, fr) { return new Ans(n.kreg, fr); },,,,,,,function _next(n, fr) { return new Ans(n.kreg, fr); },,function _throw(n, fr) {
    var ans = evalExp[n.exception.type](n.exception, fr);
    ans.err = maybeavjoin(ans.err, ans.v);
    ans.v = n.kreg;
    return ans;
  },,function _next(n, fr) { return new Ans(n.kreg, fr); },,,,,function _next(n, fr) { return new Ans(n.kreg, fr); } is not a function
    at evalFun (/usr/local/lib/jsctags/narcissus/jscfa.js:3004:31)
    at evalToplevel (/usr/local/lib/jsctags/narcissus/jscfa.js:3076:7)
    at cfa2 (/usr/local/lib/jsctags/narcissus/jscfa.js:3113:5)
    at getTags (/usr/local/lib/jsctags/narcissus/jscfa.js:3146:3)
    at Object.interpret (/usr/local/lib/jsctags/ctags/interp.js:54:21)
    at Object.scan (/usr/local/lib/jsctags/ctags/index.js:105:16)
    at processPath (/usr/local/bin/jsctags:188:18)
    at /usr/local/bin/jsctags:183:13
    at Array.forEach (native)
    at processPath (/usr/local/bin/jsctags:182:27)