undef.js - mozsearch

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/* Handle recompilation on undefined variables. */

function local()

  var x;

  x++;

  assertEq(x, NaN);

  x = 0;

local();

function name(v)

  var x;

  with (v) {

    x++;

    assertEq(x, NaN);

  assertEq(x, NaN);

  x = 0;

name({});

function letname(v)

  if (v) {

    let x;

    with (v) {

      x = "twelve";

    assertEq(x, "twelve");

letname({});

function upvar()

  var x;

  function inner() {

    x++;

    assertEq(x, NaN);

  inner();

upvar();

var x;

var y;

function global()

  x++;

  assertEq(x, NaN);

  var z = 2 + y;

  assertEq(z, NaN);

global();

x = 0;

y = 0;