Uglifyjs: [ufuzz] `run_code()` gives different result from normal execution
// original code
// (beautified)
var a = 100, b = 10, c = 0;
{
L15972: {
try {
} catch (foo) {
try {
[ --b + ((c = 1 + c, c = c + 1, (null && 23..toString()) >> (22 >>> false)) || 5).toString()[(c = 1 + c,
22 == 23..toString() & 5 / 2 | 3 / "foo" <= (NaN ^ "function"))], a++ + (typeof NaN !== "string") ][a++ + b++];
} finally {
({
NaN: (c = 1 + c, ([] !== {}) - (2 & 0) >> (2 + 2 != ("object" ^ -5)))
})[(c = c + 1) + void (/[a2][^e]+$/ << /[a2][^e]+$/ & -4 << "object" | (a && (a[{
undefined: (c = 1 + c, (a && (a.a = 38..toString() >>> "bar" === (a |= "foo" * NaN))) + (-3 !== 2 && [] <= 1)),
"": (c = 1 + c, (a && (a[0 === 1 ? a : b] *= (a >>= 25 !== true) >= (a = /[a2][^e]+$/ - 0))) * ((undefined == -0) < (23..toString() || NaN))),
length: (c = 1 + c, void (a && (a[(c = 1 + c, (a && (a.a += {} / [ , 0 ][1] ^ "number" != true)) == (("object" ^ 24..toString()) !== !"object"))] = -1 >= "number")) << ((-1 ^ -5) > /[a2][^e]+$/ / /[a2][^e]+$/))
}[(c = 1 + c, "function" === "undefined" === (a && (a.b = 3 >>> 38..toString())) != (undefined >>> undefined) / (25 >>> 3))]] += (1,
24..toString()) / (2 & []))))];
}
switch ((c = c + 1) + ((38..toString() < 3, 4 << -1) ^ 38..toString() >= "object" != /[a2][^e]+$/ > "number")) {
case a++:
{
var expr10 = typeof a_1;
L15973: for (var key10 in expr10) {
a--;
}
}
default:
var Math = (22 & [ , 0 ].length === 2) == 4 / 1 & (38..toString() === "object") + true % "number", a = a++ + a--;
case {}:
;
c = c + 1;
break;
case {
undefined: +a,
in: b = a,
1.5: {}.null,
b: {
1.5: (c = 1 + c, ((24..toString(), 4) ^ undefined % "object") != ([ , 0 ].length === 2 ^ 4) >> (-3 && "foo")),
var: (c = 1 + c, a = (a && (a[(c = 1 + c, (c = c + 1, "number" >= {}) !== (void 25 != "function" % 22))] = 38..toString() <= "")) * (false != Infinity),
(-2 ^ 25) % (25 === "foo")),
1.5: (c = 1 + c, a && (a[(c = c + 1) + void ((NaN != {}) - ("bar" < undefined) >= (c = c + 1,
Infinity >> 0))] = (null >>> null) % (3 ^ 1) ^ void (25 ^ 4)))
}.Infinity,
c: (c = c + 1) + typeof {
foo: (c = 1 + c, (a |= -1 === -3 === "number" > -3) - (-4 ^ 3 ^ -2 >= -5)),
a: (c = 1 + c, void 25 << (([ , 0 ].length === 2) <= 2) < [ , 0 ][1] >>> 5 >> (a && (a[(c = 1 + c,
(5 % 4 >>> "" / -2) * (("foo" && 24..toString()) * (-2 == 1)))] -= -5 != 25))),
undefined: (c = 1 + c, (a && (a.Infinity %= 3 != -1 | -4 ^ 22)) ^ (5 <= []) % (38..toString() > [ , 0 ][1]))
}
}:
[ , 0 ].length === 2;
break;
}
} finally {
switch ((c = c + 1) + [ (c = c + 1) + (--b + ((c = 1 + c, (a && (a.Infinity = 2 === "foo")) << +1 != (a && (a[--b + [ (c = 1 + c,
(-3 >= [] | 38..toString() ^ "function") >= ((3 | false) < ("bar" ^ [ , 0 ].length === 2))) ].NaN] = "bar" << "function" ^ {} * ([ , 0 ].length === 2)))) || a || 3).toString() || 2).toString()[(c = 1 + c,
(undefined % 22 ^ /[a2][^e]+$/ * false) >>> (undefined / 25 | -1 != 24..toString()))], a++ + !function() {
c = 1 + c, 22 > 24..toString() !== [] > 3 ^ ({} << -2) % (a && (a.NaN = "function" && []));
}(), (++b || 9).toString()[{
"\t": (c = 1 + c, ~(25 == 38..toString(), 25 - undefined))
}], , ]) {
case a++ + (a && a[--b + b--]):
var b = {
NaN: (c = 1 + c, (a && (a[(c = 1 + c, ((c = c + 1, "bar") & -0 === null) >>> (Infinity == NaN ^ "bar" - 38..toString()))] = -0 + false)) >>> -1 / 22 & (-2 < "" ^ "number" == /[a2][^e]+$/)),
"\t": (c = 1 + c, (0 && "number") != ([ , 0 ].length === 2 == undefined) | 22 >> true >> 1 % 3),
length: (c = 1 + c, (4 ^ {}) << ("object" >>> "bar"), (5 ^ /[a2][^e]+$/) * (a && (a.undefined = -5 === -3)))
};
break;
case (c = c + 1) + ~((("bar" <= "foo") >> -0 - "") % (Infinity / 1 & 25 >= "number")) ? a-- : a++ + [ --b + (a && a.b), (c = c + 1) + ~b ]["object"]:
0 === 1 ? a : b;
break;
case 1 === 1 ? a : b:
break;
case --b + (0 === 1 ? a : b):
switch (0 === 1 ? a : b) {
case a++:
c = 1 + c, a && (a.var *= (-0 >> true !== (3 ^ 2)) >= ((a && (a.Infinity = -1 >>> "undefined")) > ("function" | [ , 0 ].length === 2)));
break;
default:
L15974: {
}
case --b + +function arguments_1() {
c = 1 + c, (c = c + 1, [] >= true) >= (arguments_1 |= 2 - undefined + undefined % 3);
c = 1 + c, arguments_1 = (25 > -5) % (22 == true) === (5 ^ "undefined") / ("function" & 23..toString());
c = 1 + c, (-3 <= "" && "number" / 2) | (arguments_1 && (arguments_1.Infinity += undefined >>> "object" & (false ^ "foo")));
c = 1 + c, (-3 | -1) !== "undefined" >>> [] !== ("" && Infinity) >= (-1 >= NaN);
}():
{
var brake27 = 5;
do {
c = 1 + c, (([ , 0 ].length === 2 || 22) === (38..toString() && false)) > (([] ^ -2) & (/[a2][^e]+$/ ^ -0));
} while ((c = 1 + c, ((a && (a[(c = 1 + c, a = (a &= "" <= "object" != (a && (a[(c = 1 + c,
(/[a2][^e]+$/ > ([ , 0 ].length === 2)) >> (25 === -2) > (38..toString() | 24..toString()) << (undefined < 38..toString()))] = 2 + 5))) === [] << "" <= (undefined != -0))] = 2 + 3)) <= (a /= "" <= "object")) + (c = c + 1,
23..toString() >= null)) && --brake27 > 0);
}
{
var brake29 = 5;
do {
c = 1 + c, ({} == 25, 38..toString() / "function") && (-4 ^ -5) !== -5 * null;
} while ((c = 1 + c, (/[a2][^e]+$/ === -4 != 3 * "object") + (3 / 3 >> (-1 ^ ""))) && --brake29 > 0);
}
break;
case [ (c = 1 + c, a && (a[--b + {
b: (c = 1 + c, !(3 + -4 || a && (a.var = "number" > 24..toString()))),
undefined: (c = 1 + c, (25 * -2 & (a && (a.a += 2 << false))) === (-1 && 3) / (-3 < -1)),
NaN: (c = 1 + c, (2 | -2 || +[]) <= (-5 >= -1 | Infinity << -5))
}[(-2 ^ -4) >>> (2 >>> -4) >> (5 >>> -0 == (-1 & 0))]] = (null & 4 ^ -5 + undefined) & (a && (a.in >>>= -3 % 24..toString() !== 38..toString() * 5)))), (c = 1 + c,
a && (a.var >>>= 2 >>> ([ , 0 ].length === 2) >>> (4 >> undefined) !== ("function" % true,
-2 + -3))), (c = 1 + c, (-0 | "" | (a && (a.null &= 24..toString() !== "function"))) == (2 > [ , 0 ][1] ^ {} & "number")) ].a:
{
}
break;
}
break;
}
c = c + 1;
}
for (var brake33 = 5; (a++ + (1 === 1 ? a : b) ? [ {
undefined: a++ + {
3: (c = 1 + c, a ^= (23..toString() >>> /[a2][^e]+$/ == ("bar" != Infinity)) / ((undefined && /[a2][^e]+$/) === delete NaN)),
3: (c = 1 + c, (23..toString() * NaN != (a && (a[(c = 1 + c, ((-1 !== 0) >= "function" << {}) >>> (-5 > 0) % ("foo" === 5))] = [ , 0 ][1] === -2))) % ((a = "object" != ([ , 0 ].length === 2)) >= (-5 ^ ""))),
0: (c = 1 + c, (a = (undefined >> undefined) / ([ , 0 ][1] ^ Infinity)) / ~(2 | [ , 0 ].length === 2)),
NaN: (c = 1 + c, a = (a += (2 != []) * (24..toString() + -4)) / ({} - /[a2][^e]+$/ ^ (c = c + 1,
-3)))
}[(c = 1 + c, (c = c + 1, 2) >> (NaN << []) >>> (25 + NaN) % (([ , 0 ].length === 2) / 23..toString()))],
length: --b + b--,
foo: (c = c + 1) + (typeof b != "unknown")
}.a, --b + (a++ + +((4, "foo") % (true && 4) + (a = 38..toString() >> "foo") % ("" > "bar")) || 8).toString()[a++ + (typeof a_1 == "unknown")] ].length : a++ + ((c = c + 1) + typeof foo)) && brake33 > 0; --brake33) {
switch (5) {
case void ("number" * 25 >> (0 <= -0) < ([ , 0 ].length === 2 ^ Infinity) >>> -0 - {}):
{
{
var brake36 = 5;
while (--b + (typeof b_2 === "boolean") && --brake36 > 0) {
for (var brake37 = 5; (c = 1 + c, -((a = [] >= 0) | (a /= -3 >> 25))) && brake37 > 0; --brake37) {
c = 1 + c, (1 !== false | 22 >> -4) > (false > 24..toString() < ("number" | 38..toString()));
}
}
}
}
[ +((a = null > -0 | ({} && true)) < (a /= ([ , 0 ][1] ^ -3) >>> (c = c + 1, "foo"))), 0 === 1 ? a : b, (c = c + 1) + function() {
}() ][[ (c = 1 + c, a = ({} ^ "undefined") / (23..toString() && 4) ^ (-0 ^ 38..toString() || -1 >= 23..toString())), (c = 1 + c,
a += ({} < 1) - (2 || 0) !== ((Infinity | 38..toString()) != 23..toString() / 4)), (c = 1 + c,
(Infinity <= 22 > -3 % [ , 0 ][1]) + ("number" | true && "function" & /[a2][^e]+$/)), (c = 1 + c,
c = c + 1, (NaN || true) <= (23..toString() | true)), (c = 1 + c, (23..toString() !== -0) % ("object" >= "foo") <= (true - null >= (22 >= NaN))) ]];
break;
default:
case [ --b + 1, (c = c + 1) + a++, (c = c + 1) + (a-- || 5).toString()[b = a], ("undefined" === -0) % (25 & "") < (a && (a[!((undefined === 38..toString() | (a = 24..toString() == -5)) != (-0 <= ([ , 0 ].length === 2)) + (null >>> undefined))] = (1 !== 22) >= (a && (a[(c = 1 + c,
(-0 >= {} !== (25 || true)) > 22 * -2 % (25 ^ -5))] %= 0 - 2)))) ]:
c = c + 1;
break;
case a++ + function() {
{
var brake41 = 5;
L15975: do {
{
var brake42 = 5;
while ((c = 1 + c, ((1 ^ -4) <= ("bar", "")) >> (a = (23..toString() ^ "") & (3 || "bar"))) && --brake42 > 0) {
c = 1 + c, ((a && (a.var = "number" << "number")) === ("function" === 23..toString())) <= ((1 == 25) >= (-3 | 1));
}
}
} while ((c = c + 1) + (a && a.null) && --brake41 > 0);
}
{
var brake44 = 5;
do {
} while (--b + (b + 1 - .1 - .1 - .1) && --brake44 > 0);
}
}:
break;
}
}
(c = c + 1) + (typeof undefined_1 === "undefined");
}
}
switch (typeof a_1) {
default:
case (c = c + 1) + !b:
{
var a = function f0(Infinity_2, bar_1, Infinity_2_1) {
{
var brake49 = 5;
L15976: while ((c = c + 1) + +a && --brake49 > 0) {
var brake50 = 5;
while ({
1.5: a++,
length: --b + ((-0 && true) + (-5 ^ 25) !== (38..toString() > {} !== (Infinity_2 && (Infinity_2[(c = 1 + c,
void (-2 << 25 && undefined % "foo"))] += ("bar", [ , 0 ][1]))))),
foo: --b + ((c = 1 + c, -0 * -4 << (-5 >> "object") >> -4 - ("number" >> 1)) ? (c = 1 + c,
-2 * 2 | 23..toString() !== null && (Infinity_2 && (Infinity_2[(c = 1 + c, (-3 & [ , 0 ][1] & !23..toString()) != +(false == NaN))] |= -3 > {})) - ("function" !== "")) : (c = 1 + c,
({} >>> "foo") - delete 22 == (c = c + 1, -4) >>> /[a2][^e]+$/ % ([ , 0 ].length === 2))) ? a++ + function() {
} : b++,
foo: -((4 - 0 ^ NaN !== -0) == (false ^ {}) >= (0 && -5)),
"\t": {
3: (c = 1 + c, ([ , 0 ].length === 2 == "number" ^ 5 * "undefined") * ((bar_1 && (bar_1[(c = 1 + c,
(([ , 0 ][1], 4) | (Infinity_2_1 = false == 38..toString())) ^ (NaN >>> [] | Infinity ^ Infinity))] += "undefined" < 2)) == (24..toString() === 22))),
undefined: (c = 1 + c, (NaN * 2 !== -0 >> [ , 0 ][1]) >= (Infinity_2_1 && (Infinity_2_1.in >>>= 0 % "bar" < (-3 ^ "number")))),
Infinity: (c = 1 + c, +(Infinity_2 && (Infinity_2.null <<= (3, 24..toString()) == -4 >>> 25))),
1.5: (c = 1 + c, -4 <= [ , 0 ][1] == (-4 & /[a2][^e]+$/) != ((c = c + 1, 2) | [ , 0 ][1] - 2)),
null: (c = 1 + c, ("" && 0) > "foo" * Infinity, c = c + 1, -5 - 0)
}
} && --brake50 > 0) {
for (var brake51 = 5; a++ + (typeof NaN != "undefined") && brake51 > 0; --brake51) {
switch (c = 1 + c, (c = c + 1, -5 != "") && (2 >> 22 && "object" + -3)) {
case c = 1 + c, (c = c + 1, "number" % 0) >> ((Infinity || 1) >>> (23..toString() ^ 5)):
;
break;
case c = 1 + c, (c = c + 1, -1 + null) <= ({} + 3 & (25 && "bar")):
;
break;
case c = 1 + c, (bar_1 && (bar_1[(c = 1 + c, ({} > "function") - ("bar" << ([ , 0 ].length === 2)) != (Infinity_2_1 && (Infinity_2_1.in = (-0 | "") >>> ([ , 0 ].length === 2) - "number")))] += true + 4)) - (3 !== 4) < (-0 < undefined) * (bar_1 += /[a2][^e]+$/ == 25):
;
break;
default:
;
}
try {
c = 1 + c, void -5 === (bar_1 && (bar_1[(c = 1 + c, (2 > "object") % (Infinity === NaN) | (-1 & []) === (bar_1 = "foo" > 25))] = -4 % "function")) != ("",
23..toString()) * ([] >= {});
} catch (foo_1) {
}
}
}
}
}
{
var expr58 = a++ + function() {};
for (var key58 in expr58) {
L15977: {
switch ((c = c + 1) + (b = a)) {
case b += a:
try {
c = 1 + c, (2 > undefined === false << -4) < ((Infinity == -1) >= (-4 != -2));
} catch (bar) {
} finally {
}
var bar_1_2 = (c = 1 + c, (bar_1 = 24..toString() <= Infinity) / (2 >= null) == (undefined + 4 ^ 24..toString() === 1));
break;
case {
length: (c = 1 + c, (c = c + 1, -3 & 5) === (bar_1_2 && (bar_1_2.b = -0 - 22 || 4 >> -0))),
set a(a) {
this.null = "bar" || 0;
}
}[(38..toString() < 4) % (3 ^ true) && (true & NaN) + (bar_1 && (bar_1.undefined = "undefined" || "bar"))]:
if (c = 1 + c, Infinity_2 = (1 && 22) !== ([ , 0 ].length === 2) >= [] === ("function" >> -0 != false + -3)) {
c = 1 + c, (c = c + 1, true <= NaN) >= "function" % 22 + (c = c + 1, -5);
} else {
c = 1 + c, ([ , 0 ][1] < "number") * (4 === -2) && (c = c + 1, 22 & null);
}
break;
case (c = c + 1) + [ (c = 1 + c, -((c = c + 1, [ , 0 ][1]) > (c = c + 1, ""))), (c = 1 + c,
Infinity_2 && (Infinity_2.b /= (Infinity == 1 != 22 < "bar") << (NaN * Infinity >> (24..toString() !== -5)))), (c = 1 + c,
(c = c + 1, "") != false - 25 || (5 > -3) - (38..toString(), "number")), (c = 1 + c,
("object" | 5) - 24..toString() * "function" <= ((0 || undefined) > ("" ^ ""))), (c = 1 + c,
3 * -3 < (c = c + 1, -2) || ("bar" !== "undefined") > (bar_1_2 = null & [ , 0 ][1])) ].length:
break;
default:
;
}
if (++a) {
L15978: for (var brake69 = 5; (undefined && {}) === 5 < -2 != (bar_1 && (bar_1.b = "number" >> [] >> (1 >= "bar"))) && brake69 > 0; --brake69) {
switch (c = 1 + c, ((1 == "function") >= (24..toString() && "bar")) % ((c = c + 1,
-5) && 1 >= true)) {
case c = 1 + c, (bar_1_2 = (22 <= 38..toString()) - ("number" - 38..toString())) >= (Infinity_2 && (Infinity_2[a++ + [ , (c = 1 + c,
!(23..toString() >> "number") | (23..toString() >> "bar") - ("foo" - null)), (c = 1 + c,
"number" < 0 !== "function" > 22, bar_1 && (bar_1[a++ + [ (c = 1 + c, ("" != ([ , 0 ].length === 2)) * ([] && 2) >= (5 * /[a2][^e]+$/ ^ -2 % 3)) ][(c = 1 + c,
(Infinity_2_1 = ("undefined" && null, 25 >= true)) < (Infinity_2_1 && (Infinity_2_1[--b + (4 <= 1 < (bar_1_2 = 2 % -3) > (-5 ^ 24..toString()) >>> (true << 2))] = (c = c + 1,
-5) | -2 < [])))]] %= -4 >> "foo" === (false != "number"))) ]] = {} << 38..toString() > -3 << 0)):
;
break;
case c = 1 + c, (Infinity_2_1 = (5 & 23..toString()) % ("object" == 1)) / (4 > "foo" | (bar_1_2 && (bar_1_2.null = Infinity >> /[a2][^e]+$/))):
;
break;
case c = 1 + c, (Infinity && [ , 0 ].length === 2 || true ^ 24..toString()) / ((/[a2][^e]+$/ !== "function") % (-1 !== 38..toString())):
;
break;
case c = 1 + c, bar_1 && (bar_1.c = 24..toString() * -2 >> (c = c + 1, "object") <= ("bar" && null) % (undefined | -4)):
;
break;
}
}
}
}
}
}
}(--b + new function bar() {
this[--b + delete b] = (((c = c + 1, -5 | NaN) & false < ([ , 0 ].length === 2) === ([ , 0 ].length === 2 == -4)) != (38..toString() << "foo" < {} / 0) << (22 - 4 != (true == ""))) <= (-("bar" + /[a2][^e]+$/) / ((a && (a[(c = 1 + c,
(([] & NaN) + NaN * -2) % (("number" < undefined) + (22 || 1)))] += 38..toString() / 5)) != (undefined === -0)) <= (a = ({} && -2) == 22 * 22) / ("function" >> 24..toString(),
38..toString() || {})) === ((true * [ , 0 ][1] >= ("object" !== "undefined")) >> ((a && (a[(c = 1 + c,
"undefined" / 22 % (-1 <= -3) ^ (23..toString(), 2) >= ({} <= -0))] /= [ , 0 ][1] / 2)) | "undefined" !== undefined) >> ((0 === -0) / (0 << "") < ((c = c + 1,
false) | "object" < "number"))) + ((null * 2 - ([ , 0 ].length === 2 || 3)) * ("function" <= -1 < (-1 || {})) != !({} != 5) << ((0 || 22) ^ 25 > 3)) === ((c = c + 1,
(([ , 0 ].length === 2, -2) != false % -1) <= (2 >>> 0 != (22 ^ 25))) > (a += ![] - (-2 || -5)) + ((5 >>> -0) - (25 ^ -0)) >> ((38..toString() & 38..toString() | "" + 24..toString()) >> (({} ^ -1) >= 2 >>> 5)) ^ ((4 & []) >>> (-4 <= -2) != (25 << NaN ^ (25 && 5)) ^ (a && (a.undefined |= (null === 1 | -3 != -1) !== -2 < null <= (-4 < "bar"))) ^ ((-4 <= 23..toString()) * (24..toString(),
5) ^ (a && (a.Infinity = ([ , 0 ][1] <= ([ , 0 ].length === 2)) >> 2 / 0))) >>> ((delete 25 ^ true < ([ , 0 ].length === 2)) >>> (-1 < -4 <= (true || 0)))));
}());
}
try {
var a = void (([] / 1 ^ true * NaN) > (23..toString() == false & 3 + [ , 0 ][1]));
} finally {
c = c + 1;
L15979: {
{
var brake75 = 5;
L15980: while (--b + -b && --brake75 > 0) {
for (var brake76 = 5; typeof foo != "special" && brake76 > 0; --brake76) {
if (a++ + -b) {
var brake78 = 5;
do {
{
var brake79 = 5;
while ((c = 1 + c, ((c = c + 1, -2) <= -2 >> /[a2][^e]+$/) * (NaN - 22 >> 2 / true)) && --brake79 > 0) {
c = 1 + c, (c = c + 1, []) % (2 & "function") / ((a && (a.a = undefined + "function")) / (false % "bar"));
}
}
} while (new function() {
this[(c = 1 + c, ((false, "number") ^ 2 + 24..toString()) / (("bar" ^ 24..toString()) < [] / 4))] &= "bar" !== Infinity;
}() && --brake78 > 0);
}
}
}
}
{
var brake81 = 5;
while (--b + ((delete 1 != ("undefined" || -2)) + (a && (a.NaN = (2, 22) != (Infinity && 1)))) && --brake81 > 0) {
c = c + 1;
}
}
if (1 === 1 ? a : b) {
if (--b + (b = a)) {
switch (!function() {
c = 1 + c, ((c = c + 1, /[a2][^e]+$/) ^ (a && (a[(c = 1 + c, a && (a.var |= (38..toString() | "number") ^ (a && (a.null = -2 | -3))) || (a && (a[(c = 1 + c,
(-1 >> -4 ^ ("undefined" ^ Infinity)) !== (Infinity === [ , 0 ][1] | ([ , 0 ].length === 2) > 24..toString()))] = [] && 1) || 22 + ([ , 0 ].length === 2)))] = [] !== 2))) + ((undefined <= 1) << (a && (a[(c = 1 + c,
void 38..toString() + (38..toString() || 5) === ("foo" !== {} ^ [ , 0 ][1] >> -5))] = undefined - /[a2][^e]+$/)));
c = 1 + c, (a && (a.in = -3 < -1)) < (3 ^ "undefined") ^ -2 / -2 - (true > true);
}()) {
case --b + (a++ + (typeof a == "object")):
break;
case a++ + (0 === 1 ? a : b):
c = 1 + c, (a += -5 ^ -2) && -4 & NaN && 23..toString() % -3 << (a = 38..toString() >>> -0);
var bar_1 = (c = 1 + c, bar_1 && (bar_1.foo = (c = c + 1, 5) % (4 % "function") - ((22 & "") >> (-2 === 4))));
break;
case (c = c + 1) + [ (c = 1 + c, 22 > 3 <= 24..toString() + "foo" != (bar_1 && (bar_1.in += ([] !== 25) + (-4 <= -1)))), (c = 1 + c,
+(~25, -3 | -3)), (c = 1 + c, !+22 | (1 > "number" && 38..toString() >= 0)), (c = 1 + c,
(2 < -3 | ([ , 0 ].length === 2) + "object") & (null - /[a2][^e]+$/ | -5 - 24..toString())), (c = 1 + c,
(3 * 1 << "bar" * "") / (/[a2][^e]+$/ % -0 < -4 >>> 3)) ].a:
{
}
break;
default:
;
if (c = 1 + c, (5 >> 5) - (5 != []) ^ (38..toString(), 38..toString()) < (true != 2)) {
c = 1 + c, (5 / "undefined" || -1 >>> -3) <= ((-2 === true) >= (null < -3));
}
}
} else if (--b + [ --b + /[abc4]/.test(((c = 1 + c, (~"bar" | ([ , 0 ].length === 2) > "foo") & (null,
24..toString()) > (-2 !== "function")) || b || 5).toString()), a++ + ((38..toString() >= 5) >> (23..toString() >> 1) ^ (undefined & NaN ^ -4 != /[a2][^e]+$/)), a++ + (bar_1 && bar_1[(c = 1 + c,
((4 == 25) << (null >>> 5)) % (25 / 5 >> (-4 != "bar")))]), , a++ + /[abc4]/.test(((c = 1 + c,
(true || 25) * (NaN - -1), !(Infinity !== ([ , 0 ].length === 2))) || b || 5).toString()) ].undefined) {
b = a;
}
}
}
}
break;
case 1 === 1 ? a : b:
switch ((c = c + 1) + (typeof foo_2 === "unknown")) {
case a++ + (b = a):
break;
default:
try {
{
{
var expr100 = a++ + ~((false != true) / (false === Infinity) > ("undefined" | "bar") >>> 0 - 22);
for (var key100 in expr100) {
c = 1 + c;
var bar_1_2 = expr100[key100];
{
var bar_2 = function f1(a, foo_2, foo_1) {
c = 1 + c, -1 >>> 2 >> ("bar" >>> undefined) || 0 * 38..toString() != 23..toString() * 38..toString();
c = 1 + c, (-1 | 5, c = c + 1, "undefined") ^ "object" === -2 & (foo_2 && (foo_2.foo = "" > ([ , 0 ].length === 2)));
}(delete ((true != undefined, "foo" ^ 23..toString()) * (-5 >>> true <= (0 && true))));
}
}
}
}
} finally {
switch ([ typeof bar_2 !== "object", /[abc4]/.test((--b + ((c = 1 + c, (bar_1_2 && (bar_1_2.var += {} >= null)) !== (bar_2 && (bar_2.NaN += 1 && "number")) && (c = c + 1,
false >>> "foo")) || 4).toString()[(c = 1 + c, ("function" >>> "foo" && (bar_1_2 && (bar_1_2.null += ([],
-0)))) ^ ({} < -0 || 22 << -2))] || b || 5).toString()) ][a--]) {
case (c = c + 1) + {
a: a++ + delete a,
in: void b
}:
{
var brake105 = 5;
while (0 && --brake105 > 0) {}
}
break;
case /[abc4]/.test(([ --b + {
0: (c = 1 + c, (true === 3) >= (c = c + 1, "") ^ {} !== 3 & "bar" !== "bar"),
1.5: (c = 1 + c, bar_2 && (bar_2.a = (22 - 4 != -4 * false) / ((1 & -4) > 38..toString() / /[a2][^e]+$/)))
}.in, a++ + (0 === 1 ? a : b), --b + a++ ] || b || 5).toString()):
break;
case (c = c + 1) + /[abc4]/.test(([] || b || 5).toString()):
switch (a++ + b++) {
default:
switch (c = 1 + c, (c = c + 1, c = c + 1, 3) / (1 >= 25 !== "undefined" % "")) {
case c = 1 + c, ((true ^ 25) != (c = c + 1, "bar")) - (([ , 0 ][1] == Infinity) + ("undefined" && Infinity)):
;
break;
case c = 1 + c, bar_1 && (bar_1.c = (NaN || [ , 0 ][1]) < undefined / 38..toString() >= ((true ^ Infinity) > (0 & -4))):
;
break;
case c = 1 + c, (bar_2 && (bar_2[--b + (0 === 1 ? a : b)] = (NaN ^ 1) > 1 / 5)) >>> ([ , 0 ].length === 2 && 0) / (25 - -2):
;
break;
case c = 1 + c, !(undefined === "number") & ((null ^ -2) & null << null):
;
break;
}
case +function b() {
c = 1 + c, (24..toString() !== ([ , 0 ].length === 2)) << Infinity + {} < (3 ^ true) + (bar_2 && (bar_2.undefined = 38..toString() / 3));
c = 1 + c, bar_1 = ((bar_2 && (bar_2.var = 3 ^ "bar")) + (bar_2 && (bar_2.a += [] << -1))) * ((24..toString() ^ [ , 0 ][1]) - (2 !== ([ , 0 ].length === 2)));
c = 1 + c, (([ , 0 ].length === 2 ^ "foo") & -4 <= 4) - ((24..toString() ^ [ , 0 ].length === 2) === 23..toString() << "number");
c = 1 + c, (false ^ -5) >> (25 >> ([ , 0 ].length === 2)) >>> (4 ^ "") - (5 && 22);
}():
c = c + 1;
break;
case bar_2 && bar_2.null:
break;
case bar_2 && bar_2[--b + (1 === 1 ? a : b)]:
if (c = 1 + c, (4 + 5 & [ , 0 ][1] >= NaN) / ((2 & 5) << (-2 >= ([ , 0 ].length === 2)))) {
c = 1 + c, bar_2 && (bar_2.undefined *= 5 + 4 >= (Infinity, "function") || -5 - 3 << ("function" != 22));
} else {
c = 1 + c, bar_1_2 = void ("function" >> []) << (bar_1 && (bar_1.a += 3 ^ -4), [ , 0 ][1] << "bar");
}
break;
}
a++ + void function() {
c = 1 + c, delete ((3 || 5) != "bar" * 24..toString());
c = 1 + c, bar_1_2 = (-2 >= Infinity && (bar_1_2 /= "number" === 24..toString())) === (bar_2 && (bar_2.c += 1 < null),
-3 > ([ , 0 ].length === 2));
c = 1 + c, (-2 >> 24..toString() == (bar_1 = "function" & 22)) > ((38..toString() ^ -0) < (5 < 3));
}();
break;
case b &= a:
{
var brake121 = 5;
while ((c = c + 1) + b++ && --brake121 > 0) {
-((bar_1 = ("object" || "object") >>> (NaN >> 25)) !== (-4 * -1 || "undefined" >>> -4));
}
}
if (--b + [ (c = 1 + c, (null < 1 | (bar_1 = "undefined" === ([ , 0 ].length === 2))) != (1 !== 23..toString()) + (23..toString() <= false)) ]) {
var brake124 = 5;
while (-1 && --brake124 > 0) {
}
}
break;
}
{
var brake126 = 5;
do {
c = c + 1;
} while (--b + void (c = c + 1, bar_2 <<= (c = c + 1, "object") > 24..toString() + 5) && --brake126 > 0);
}
}
{
var expr128 = delete a;
L15981: for (var key128 in expr128) {
c = 1 + c;
var b_1 = expr128[key128];
{
{
var undefined = function f2() {
{
var brake131 = 5;
while ((c = 1 + c, (("undefined" | "undefined") === 22 * 1) >>> (0 + [ , 0 ][1] < (c = c + 1,
38..toString()))) && --brake131 > 0) {
c = 1 + c, (25 != [ , 0 ][1]) >= (null ^ 0) || (bar_1_2 && (bar_1_2.a >>= true / [])) ^ "foo" > 23..toString();
}
}
try {
c = 1 + c, bar_1_2 && (bar_1_2[a++ + {
NaN: (c = 1 + c, (23..toString() & {}) < ("function" < "") && (bar_2 &= (/[a2][^e]+$/ & "number") == ("function" !== {}))),
1.5: (c = 1 + c, (+24..toString() <= 5 * 3) * (24..toString() / 23..toString() / ~"foo")),
null: (c = 1 + c, delete (b_1 && (b_1.in = false | 1)) == ((-5 ^ [ , 0 ].length === 2) !== 38..toString() << -0)),
null: (c = 1 + c, undefined <= Infinity == (Infinity ^ 22) !== ({} > "object" & 5 + "function"))
}.Infinity] = ("foo" == -4 && "" + 23..toString()) > (-3 > "undefined" && NaN == "function"));
} finally {
}
}(--b + typeof (--b + (b + 1 - .1 - .1 - .1)));
}
c = c + 1;
bar_2 && bar_2[a++ + (--b + b--)];
{
var brake137 = 5;
while ((c = c + 1) + (--b + (bar_1 && bar_1[(c = c + 1) + (1 === 1 ? a : b)]) || a || 3).toString() && --brake137 > 0) {
(c = c + 1) + a++;
}
}
}
}
}
case (c = c + 1) + ((-4 ^ 3 ^ "object" % 0) & ((c = c + 1, []) && (-2 || 23..toString()))):
var arguments_1 = --b + !+((23..toString() && []) ^ /[a2][^e]+$/ >> {});
break;
case a++ + (1 === 1 ? a : b):
break;
}
break;
case /[a2][^e]+$/:
[ (c = c + 1) + 3 ];
/[abc4]/.test((--b + ([ {
3: (c = c + 1, /[a2][^e]+$/) + (bar_2 += "number" || [ , 0 ][1]) - (-4 ^ 3 | (NaN | 22)),
var: (c = c + 1) + {
length: (c = 1 + c, false >> "number" >> ([] || {}) ^ (24..toString() < -3 || [] ^ -2)),
Infinity: (c = 1 + c, b_1 = (c = c + 1, 38..toString()) | 1 % 25 && void "object" << null / 4),
3: (c = 1 + c, (-0, [ , 0 ][1]) <= (-2 > Infinity), "function" >= Infinity | 24..toString() % "object"),
Infinity: (c = 1 + c, c = c + 1, ("" & false) == "object" * 22),
"": (c = 1 + c, bar_2 && (bar_2.NaN <<= (bar_1 = /[a2][^e]+$/ * -5 !== [ , 0 ][1] - null) && ("object" && -2) ^ 0 * "function"))
}.Infinity,
"-2": typeof new function c_1() {
this[(c = 1 + c, ((/[a2][^e]+$/ == NaN) <= (/[a2][^e]+$/ ^ 4)) * ((false === 23..toString()) * (NaN >>> "bar")))] = 1 / true;
}(),
0: 0 === 1 ? a : b
}[(c = c + 1) + (b += a)], --b + [].c, (c = c + 1) + ((c = c + 1) + (0 === 1 ? a : b)) ][--b + (0 % "bar" % (24..toString() / -5) > ((NaN && false) ^ (-4 || false)))] || a || 3).toString() || b || 5).toString());
break;
}
console.log(null, a, b, c);
// uglified code
// (beautified)
var b = 10, c = 0, expr10, key10, Math, a;
switch ((c += 1) + [ (c += 1) + (--b + (c = 1 + c, ((a = 100) && (a.Infinity = !1)) << 1 != (a && (a[--b + [ (c = 1 + c,
(-3 >= [] | "function" ^ 38..toString()) >= (3 < ("bar" ^ 2 === [ , 0 ].length))) ].NaN] = 0 ^ {} * (2 === [ , 0 ].length))) || a || 3).toString() || 2).toString()[(c = 1 + c,
(undefined % 22 ^ NaN) >>> (undefined / 25 | -1 != 24..toString()))], a++ + (c = 1 + c,
24..toString(), !void (a && (a.NaN = []))), (++b || 9).toString()[{
"\t": (c = 1 + c, 38..toString(), ~(25 - undefined))
}], , ]) {
case a++ + (a && a[--b + b--]):
var b = {
NaN: (c = 1 + c, (a && (a[(c = 1 + c, (!1 & (c += 1, "bar")) >>> (!1 ^ "bar" - 38..toString()))] = 0)) >>> -1 / 22 & 1),
"\t": (c = 1 + c, 0 != (2 === [ , 0 ].length == undefined) | 5),
length: (c = 1 + c, 5 * (a && (a.undefined = !1)))
};
break;
case (c += 1) + -1 ? a-- : a++ + [ --b + (a && a.b), (c += 1) + ~b ].object:
case a:
break;
case --b + b:
switch (b) {
case a++:
c = 1 + c, a && (a.var *= !0 >= ((a && (a.Infinity = 4294967295)) > ("function" | 2 === [ , 0 ].length)));
break;
default:
case --b + +function arguments_1() {
c = 1 + c, arguments_1 |= 2 - undefined + undefined % 3, c = 1 + (c += 1), arguments_1 = NaN === 5 / ("function" & 23..toString()),
c = 1 + c, arguments_1 && (arguments_1.Infinity += undefined >>> "object" & 0),
c = 1 + c;
}():
var brake27 = 5;
do {
c = 1 + c, 38..toString();
} while (c = 1 + c, ((a && (a[(c = 1 + c, a = (a &= 1 != (a && (a[(c = 1 + c, (/[a2][^e]+$/ > (2 === [ , 0 ].length)) >> !1 > (38..toString() | 24..toString()) << (undefined < 38..toString()))] = 7))) === [] << "" <= (-0 != undefined))] = 5)) <= (a /= !0)) + (c += 1,
23..toString() >= null) && --brake27 > 0);
var brake29 = 5;
do {
c = 1 + c, 38..toString();
} while (c = 1 + c, --brake29 > 0);
break;
case [ (c = 1 + c, a && (a[--b + {
b: (c = 1 + c, !1),
undefined: (c = 1 + c, 3 == (-50 & (a && (a.a += 2)))),
NaN: (c = 1 + c, !0)
}[2]] = (0 ^ -5 + undefined) & (a && (a.in >>>= -3 % 24..toString() != 5 * 38..toString())))), (c = 1 + c,
a && (a.var >>>= 2 >>> (2 === [ , 0 ].length) >>> (4 >> undefined) != -5)), (c = 1 + c,
(0 | (a && (a.null &= "function" !== 24..toString()))) == (2 > [ , 0 ][1] ^ "number" & {})) ].a:
}
}
c += 1;
for (var brake33 = 5; (a++ + a ? [ {
undefined: a++ + {
3: (c = 1 + c, a ^= (23..toString() >>> /[a2][^e]+$/ == 1) / ((undefined && /[a2][^e]+$/) === delete NaN)),
3: (c = 1 + c, (NaN * 23..toString() != (a && (a[(c = 1 + c, (!0 >= "function" << {}) >>> NaN)] = -2 === [ , 0 ][1]))) % ((a = "object" != (2 === [ , 0 ].length)) >= -5)),
0: (c = 1 + c, (a = (undefined >> undefined) / ([ , 0 ][1] ^ 1 / 0)) / ~(2 | 2 === [ , 0 ].length)),
NaN: (c = 1 + c, a = (a += (2 != []) * (24..toString() + -4)) / ({} - /[a2][^e]+$/ ^ (c += 1,
-3)))
}[(c = 1 + c, c += 1, 2 >> (NaN << []) >>> NaN % ((2 === [ , 0 ].length) / 23..toString()))],
length: --b + b--,
foo: (c += 1) + ("unknown" != typeof b)
}.a, --b + (a++ + +(NaN + (a = 38..toString() >> "foo") % !1) || 8).toString()[a++ + ("unknown" == typeof a_1)] ].length : a++ + ((c += 1) + typeof foo)) && brake33 > 0; --brake33) {
switch (5) {
default:
var brake36;
var brake37;
case [ 1 + --b, (c += 1) + a++, (c += 1) + (a-- || 5).toString()[b = a], NaN < (a && (a[!((undefined === 38..toString() | (a = -5 == 24..toString())) != (-0 <= (2 === [ , 0 ].length)) + (null >>> undefined))] = !0 >= (a && (a[(c = 1 + c,
(-0 >= {} !== 25) > -14)] %= -2)))) ]:
c += 1;
break;
case a++ + function() {
var brake41 = 5;
do {
for (var brake42 = 5; c = 1 + c, !0 >> (a = 3 & ("" ^ 23..toString())) && --brake42 > 0; ) {
c = 1 + c, a && (a.var = 0), 23..toString();
}
} while ((c += 1) + (a && a.null) && --brake41 > 0);
var brake44 = 5;
do {} while (--b + (b + 1 - .1 - .1 - .1) && --brake44 > 0);
}:
}
}
switch (c += 1, typeof a_1) {
default:
case (c += 1) + !b:
var a = function(Infinity_2, bar_1, Infinity_2_1) {
for (var brake49 = 5; (c += 1) + +a && --brake49 > 0; ) {
for (var brake50 = 5; a++, --b, 38..toString(), Infinity_2 && (Infinity_2[void (c = 1 + c)] += [ , 0 ][1]),
--b + (c = 1 + c, c = 1 + c, ({} >>> "foo") - !0 == (c += 1, -4 >>> /[a2][^e]+$/ % (2 === [ , 0 ].length))) ? a++ : b++,
c = 1 + c, bar_1 && (bar_1[(c = 1 + c, (4 | (Infinity_2_1 = 0 == 38..toString())) ^ (NaN >>> [] | 0))] += !1),
24..toString(), c = 1 + c, Infinity_2_1 && (Infinity_2_1.in >>>= !1), c = 1 + c,
Infinity_2 && (Infinity_2.null <<= 127 == 24..toString()), c = 1 + c, c += 1, c = 1 + c,
c += 1, --brake50 > 0; ) {
for (var brake51 = 5; a++ + !0 && brake51 > 0; --brake51) {
switch (c = 1 + c, c += 1, 0) {
case c = 1 + c, c += 1, NaN >> (1 / 0 >>> (5 ^ 23..toString())):
case c = 1 + c, c += 1, -1 <= ({} + 3 & "bar"):
case c = 1 + c, (bar_1 && (bar_1[(c = 1 + c, ({} > "function") - ("bar" << (2 === [ , 0 ].length)) != (Infinity_2_1 && (Infinity_2_1.in = 0 >>> (2 === [ , 0 ].length) - "number")))] += 5)) - !0 < (-0 < undefined) * (bar_1 += !1):
}
try {
c = 1 + c, bar_1 && (bar_1[(c = 1 + c, NaN | (-1 & []) === (bar_1 = !1))] = NaN),
23..toString();
} catch (foo_1) {}
}
}
}
var expr58 = a++ + function() {};
for (var key58 in expr58) {
switch ((c += 1) + (b = a)) {
case b += a:
try {
c = 1 + c;
} catch (bar) {}
var bar_1_2 = (c = 1 + c, (bar_1 = 24..toString() <= 1 / 0) / !0 == (undefined + 4 ^ 1 === 24..toString()));
break;
case {
length: (c = 1 + c, c += 1, 5 === (bar_1_2 && (bar_1_2.b = -22))),
set a(a) {
this.null = "bar";
}
}[(38..toString() < 4) % 2 && 0 + (bar_1 && (bar_1.undefined = "undefined"))]:
c = 1 + c, (Infinity_2 = 22 !== (2 === [ , 0 ].length) >= [] == !0) ? (c = 1 + c,
c += 1, c += 1) : (c = 1 + c, !1 * ([ , 0 ][1] < "number") && (c += 1));
break;
case (c += 1) + [ (c = 1 + c, c += 1, -([ , 0 ][1] > (c += 1, ""))), (c = 1 + c, Infinity_2 && (Infinity_2.b /= !1 << (NaN >> (-5 !== 24..toString())))), (c = 1 + c,
-25 != (c += 1, "") || !0 - (38..toString(), "number")), (c = 1 + c, 5 - "function" * 24..toString() <= (undefined > 0)), (c = 1 + c,
-9 < (c += 1, -2) || !0 > (bar_1_2 = null & [ , 0 ][1])) ].length:
}
if (++a) {
for (var brake69 = 5; !1 === (undefined && {}) != (bar_1 && (bar_1.b = "number" >> [] >> !1)) && brake69 > 0; --brake69) {
switch (c = 1 + c, (!1 >= (24..toString() && "bar")) % (c += 1, !0)) {
case c = 1 + c, (bar_1_2 = (22 <= 38..toString()) - ("number" - 38..toString())) >= (Infinity_2 && (Infinity_2[a++ + [ , (c = 1 + c,
!(23..toString() >> "number") | (23..toString() >> "bar") - NaN), (c = 1 + c, bar_1 && (bar_1[a++ + [ (c = 1 + c,
("" != (2 === [ , 0 ].length)) * ([] && 2) >= -2) ][(c = 1 + c, (Infinity_2_1 = !0) < (Infinity_2_1 && (Infinity_2_1[--b + (!1 < (bar_1_2 = 2) > (-5 ^ 24..toString()) >>> 4)] = (c += 1,
-5 | -2 < []))))]] %= !1)) ]] = {} << 38..toString() > -3)):
case c = 1 + c, (Infinity_2_1 = (5 & 23..toString()) % !1) / (!1 | (bar_1_2 && (bar_1_2.null = 0))):
case c = 1 + c, (2 === [ , 0 ].length || !0 ^ 24..toString()) / (!0 % (-1 !== 38..toString())):
case c = 1 + c, bar_1 && (bar_1.c = -2 * 24..toString() >> (c += 1, "object") <= null % (-4 | undefined)):
}
}
}
}
}(--b + new function() {
this[--b + delete b] = (c += 1, ((-5 & !1 < (2 === [ , 0 ].length) == (2 === [ , 0 ].length == -4)) != (38..toString() << "foo" < {} / 0) << !0) <= (NaN / ((a && (a[(c = 1 + c,
((NaN & []) + NaN) % (("number" < undefined) + 22))] += 38..toString() / 5)) != (-0 === undefined)) <= (a = 484 == ({} && -2)) / (24..toString(),
38..toString() || {})) === ((!0 * [ , 0 ][1] >= !0) >> ((a && (a[(c = 1 + c, NaN ^ (23..toString(),
2 >= ({} <= -0)))] /= [ , 0 ][1] / 2)) | "undefined" !== undefined) >> (1 / 0 < (!1 | (c += 1,
!1)))) + (!1 * (0 - (2 === [ , 0 ].length || 3)) != !(5 != {}) << 23) === (c += 1,
!0 > (a += ![] - -2) + -20 >> ((38..toString() & 38..toString() | "" + 24..toString()) >> ((-1 ^ {}) >= 0)) ^ (4 & []) >>> !0 != 28 ^ (a && (a.undefined |= !0)) ^ ((-4 <= 23..toString()) * (24..toString(),
5) ^ (a && (a.Infinity = ([ , 0 ][1] <= (2 === [ , 0 ].length)) >> 1 / 0))) >>> ((!0 ^ !0 < (2 === [ , 0 ].length)) >>> !0)));
}());
try {
var a = void 23..toString();
} finally {
c += 1;
for (var brake75 = 5; --b - b && --brake75 > 0; ) {
for (var brake76 = 5; "special" != typeof foo && brake76 > 0; --brake76) {
if (a++ - b) {
var brake78 = 5;
do {
for (var brake79 = 5; c = 1 + c, 0 * (c += 1, !0) && --brake79 > 0; ) {
c = 1 + c, c += 1, a && (a.a = undefined + "function");
}
} while (new function() {
this[(c = 1 + c, ("number" ^ 2 + 24..toString()) / (("bar" ^ 24..toString()) < [] / 4))] &= !0;
}() && --brake78 > 0);
}
}
}
for (var brake81 = 5; --b + (!0 + (a && (a.NaN = !0))) && --brake81 > 0; ) {
c += 1;
}
if (a) {
if (--b + (b = a)) {
switch (c = 1 + c, c += 1, a && (a[(c = 1 + c, a && (a.var |= ("number" | 38..toString()) ^ (a && (a.null = -1))) || a && (a[(c = 1 + c,
-1 != (1 / 0 === [ , 0 ][1] | (2 === [ , 0 ].length) > 24..toString()))] = [] && 1) || 22 + (2 === [ , 0 ].length))] = 2 !== []),
a && (a[(c = 1 + c, void 38..toString() + (38..toString() || 5) === ("foo" !== {} ^ [ , 0 ][1] >> -5))] = undefined - /[a2][^e]+$/),
c = 1 + c, !void (a && (a.in = !0))) {
case --b + (a++ + ("object" == typeof a)):
break;
case a++ + b:
c = 1 + c, (a += 5) && 0 && (23..toString(), a = 38..toString() >>> -0);
var bar_1 = (c = 1 + c, bar_1 && (bar_1.foo = (c += 1, NaN)));
break;
case (c += 1) + [ (c = 1 + c, !0 <= 24..toString() + "foo" != (bar_1 && (bar_1.in += (25 !== []) + !0))), (c = 1 + c,
-3), (c = 1 + c, 0), (c = 1 + c, (!1 | (2 === [ , 0 ].length) + "object") & (NaN | -5 - 24..toString())), (c = 1 + c,
1 / 0) ].a:
break;
default:
c = 1 + c, 0 - (5 != []) ^ (38..toString(), 38..toString() < !0) && (c = 1 + c);
}
} else {
--b + [ --b + /[abc4]/.test((c = 1 + c, (-1 | (2 === [ , 0 ].length) > "foo") & 24..toString() > !0 || b || 5).toString()), a++ + ((38..toString() >= 5) >> (23..toString() >> 1) ^ NaN & undefined ^ !0), a++ + (bar_1 && bar_1[(c = 1 + c,
0)]), , a++ + /[abc4]/.test((c = 1 + c, !(1 / 0 !== (2 === [ , 0 ].length)) || b || 5).toString()) ].undefined && (b = a);
}
}
}
break;
case a:
switch ((c += 1) + ("unknown" == typeof foo_2)) {
case a++ + (b = a):
break;
default:
try {
var expr100 = a++ - 2;
for (var key100 in expr100) {
c = 1 + c;
var bar_1_2 = expr100[key100], bar_2 = function(a, foo_2, foo_1) {
c = 1 + c, -1 >>> 2 >> ("bar" >>> undefined) || (38..toString(), 23..toString(),
38..toString()), c = 1 + c, c += 1, foo_2 && (foo_2.foo = "" > (2 === [ , 0 ].length));
}(23..toString());
}
} finally {
switch ([ "object" != typeof bar_2, /[abc4]/.test((--b + (c = 1 + c, (bar_1_2 && (bar_1_2.var += {} >= null)) !== (bar_2 && (bar_2.NaN += "number")) && (c += 1,
0) || 4).toString()[(c = 1 + c, 0 ^ ({} < -0 || 22 << -2))] || b || 5).toString()) ][a--]) {
case (c += 1) + {
a: a++ + delete a,
in: void 0
}:
var brake105 = 5;
break;
case /[abc4]/.test(([ --b + {
0: (c = 1 + c, !1 >= (c += 1, "") ^ 3 !== {} & !1),
1.5: (c = 1 + c, bar_2 && (bar_2.a = !0 / (0 > 38..toString() / /[a2][^e]+$/)))
}.in, a++ + b, --b + a++ ] || b || 5).toString()):
break;
case (c += 1) + /[abc4]/.test(([] || b || 5).toString()):
switch (a++ + b++) {
default:
switch (c = 1 + c, c += 1, c += 1, 3) {
case c = 1 + c, (24 != (c += 1, "bar")) - (([ , 0 ][1] == 1 / 0) + 1 / 0):
case c = 1 + c, bar_1 && (bar_1.c = [ , 0 ][1] < undefined / 38..toString() >= !0):
case c = 1 + c, (bar_2 && (bar_2[--b + b] = !0)) >>> (2 === [ , 0 ].length && 0) / 27:
case c = 1 + c, 0 & !("number" === undefined):
}
case c = 1 + c, 24..toString(), bar_2 && (bar_2.undefined = 38..toString() / 3), c = 1 + c,
bar_1 = ((bar_2 && (bar_2.var = 3)) + (bar_2 && (bar_2.a += [] << -1))) * ((24..toString() ^ [ , 0 ][1]) - (2 !== (2 === [ , 0 ].length))),
c = 1 + c, 24..toString(), 23..toString(), +void (c = 1 + c):
c += 1;
break;
case bar_2 && bar_2.null:
break;
case bar_2 && bar_2[--b + a]:
c = 1 + c, (9 & [ , 0 ][1] >= NaN) / (0 << (-2 >= (2 === [ , 0 ].length))) ? (c = 1 + c,
bar_2 && (bar_2.undefined *= -16)) : (c = 1 + c, bar_1_2 = void 0 << (bar_1 && (bar_1.a += -1),
[ , 0 ][1] << "bar"));
}
a++, c = 1 + c, 24..toString(), c = 1 + c, bar_1_2 = 0 == (bar_2 && (bar_2.c += !1),
-3 > (2 === [ , 0 ].length)), c = 1 + c, 24..toString(), bar_1 = 0, 38..toString();
break;
case b &= a:
for (var brake121 = 5; (c += 1) + b++ && --brake121 > 0; ) {
bar_1 = 0;
}
if (--b + [ (c = 1 + c, (!0 | (bar_1 = "undefined" === (2 === [ , 0 ].length))) != (1 !== 23..toString()) + (23..toString() <= !1)) ]) {
for (var brake124 = 5; --brake124 > 0; ) {}
}
}
var brake126 = 5;
do {
c += 1;
} while (--b + (c += 1, void (bar_2 <<= (c += 1, "object" > 24..toString() + 5))) && --brake126 > 0);
}
var expr128 = delete a;
for (var key128 in expr128) {
c = 1 + c;
var b_1 = expr128[key128], undefined = function() {
for (var brake131 = 5; c = 1 + c, !1 >>> (0 + [ , 0 ][1] < (c += 1, 38..toString())) && --brake131 > 0; ) {
c = 1 + c, (25 != [ , 0 ][1]) >= 0 || (bar_1_2 && (bar_1_2.a >>= !0 / []), 23..toString());
}
try {
c = 1 + c, bar_1_2 && (bar_1_2[a++ + {
NaN: (c = 1 + c, (23..toString() & {}) < !1 && (bar_2 &= 0 == ("function" !== {}))),
1.5: (c = 1 + c, (+24..toString() <= 15) * (24..toString() / 23..toString() / -1)),
null: (c = 1 + c, b_1 && (b_1.in = 1), !0 == ((-5 ^ 2 === [ , 0 ].length) != 38..toString() << -0)),
null: (c = 1 + c, undefined <= 1 / 0 == 22 !== ({} > "object" & "5function"))
}.Infinity] = !1);
} finally {}
}((--b, --b));
c += 1, bar_2 && bar_2[a++ + (--b + b--)];
for (var brake137 = 5; (c += 1) + (--b + (bar_1 && bar_1[(c += 1) + a]) || a || 3).toString() && --brake137 > 0; ) {
c += 1, a++;
}
}
case (c += 1) + (-1 & (c += 1, [] && -2)):
var arguments_1 = --b + !+((23..toString() && []) ^ /[a2][^e]+$/ >> {});
break;
case a++ + a:
}
break;
case /[a2][^e]+$/:
c += 1, /[abc4]/.test((--b + ([ {
3: (c += 1, /[a2][^e]+$/ + (bar_2 += "number") - -1),
var: (c += 1) + {
length: (c = 1 + c, 0 >> ([] || {}) ^ (24..toString() < -3 || -2 ^ [])),
Infinity: (c = 1 + c, b_1 = 1 | (c += 1, 38..toString()) && 0),
3: (c = 1 + c, !1 | 24..toString() % "object"),
Infinity: (c = 1 + c, c += 1, !1),
"": (c = 1 + c, bar_2 && (bar_2.NaN <<= (bar_1 = NaN !== [ , 0 ][1] - null) && -2))
}.Infinity,
"-2": typeof new function() {
this[(c = 1 + c, !0 * (0 * (!1 === 23..toString())))] = 1;
}(),
0: b
}[(c += 1) + (b += a)], --b + [].c, (c += 1) + ((c += 1) + b) ][--b + (NaN % (24..toString() / -5) > -4)] || a || 3).toString() || b || 5).toString());
}
console.log(null, a, b, c);
md5-328aea54b3e27019a3cc1fa7cc0a1791
original result:
null undefined 466 1611
uglified result:
null undefined 454 1558
minify(options):
{
"mangle": false
}
Suspicious compress options:
booleans
side_effects
bug
alexlamsl
All 21 comments
This one is in its own class of weirdness (test.js is the original code from above):
$ cat test.js | node
null undefined 466 1611
$ uglifyjs test.js -c | node
null undefined 454 1558
$ uglifyjs test.js -cb | node
null undefined 466 1611
Weird indeed. Could be uglify is not emitting parens without beautify for some precedence issue.
kzc
on 9 Jun 2017
This is a case where Suspicious compress options failed us, because it was testing against original (non-beautified) input, whereas we printed the beautified original after we checked the outputs are identical.
Something to fix in test/ufuzz.js as well.
alexlamsl
on 9 Jun 2017
Narrowed this one down to space to far:
--- a/lib/output.js
+++ b/lib/output.js
@@ -323,9 +323,7 @@ function OutputStream(options) {
last = str;
};
- var space = options.beautify ? function() {
- print(" ");
- } : function() {
+ var space = function() {
might_need_space = true;
};
👍1
I think this is just another false positive, albeit a somewhat annoying one:
$ cat test.js
var a = 1;
var expr58 = a++ + function() {};
console.log(expr58);
$ cat test.js | node
1function () {}
$ uglifyjs test.js -c | node
1function (){}
$ uglifyjs test.js -cb | node
1function () {}
So this time I use the diff in https://github.com/mishoo/UglifyJS2/issues/2079#issuecomment-307463548 to produce good.js and bad.js, then use https://github.com/mishoo/UglifyJS2/issues/2075#issuecomment-307459903 to narrow it down to one line.
alexlamsl
on 9 Jun 2017
What I need to figure out now is why test/sandbox.js doesn't turn that function() {} into [Function: 1]
alexlamsl
on 9 Jun 2017
Turns out this one is quite nasty - the coincidence in https://github.com/mishoo/UglifyJS2/issues/2079#issuecomment-307465836 almost mask the fact that there's another place where run_code() seems to behave differently:
--- a/good.js
+++ b/bad.js
@@ -93,20 +93,12 @@ switch (c += 1, typeof a_1) {
case (c += 1) + !b:
var a = function(Infinity_2, bar_1, Infinity_2_1) {
for (var brake49 = 5; (c += 1) + +a && --brake49 > 0; ) {
- for (var brake50 = 5; {
- 1.5: a++,
- length: --b + (-30 !== (38..toString() > {} !== (Infinity_2 && (Infinity_2[void (c = 1 + c)] += [ , 0 ][1])))),
- foo: --b + (c = 1 + c, c = 1 + c, ({} >>> "foo") - true == (c += 1, -4 >>> /[a2][^e]+$/ % (2 === [ , 0 ].length))) ? a++ + function() {} : b++,
- foo: -(5 == (false ^ {}) >= 0),
- "\t": {
- 3: (c = 1 + c, (2 === [ , 0 ].length == "number" ^ NaN) * ((bar_1 && (bar_1[(c = 1 + c,
- (4 | (Infinity_2_1 = false == 38..toString())) ^ (NaN >>> [] | 0))] += false)) == (22 === 24..toString()))),
- undefined: (c = 1 + c, (NaN !== -0 >> [ , 0 ][1]) >= (Infinity_2_1 && (Infinity_2_1.in >>>= false))),
- Infinity: (c = 1 + c, +(Infinity_2 && (Infinity_2.null <<= 127 == 24..toString()))),
- 1.5: (c = 1 + c, -4 <= [ , 0 ][1] == 0 != (c += 1, 2 | [ , 0 ][1] - 2)),
- null: (c = 1 + c, c += 1, -5)
- }
- } && --brake50 > 0; ) {
+ for (var brake50 = 5; a++, --b, 38..toString(), Infinity_2 && (Infinity_2[void (c = 1 + c)] += [ , 0 ][1]),
+ --b + (c = 1 + c, c = 1 + c, ({} >>> "foo") - !0 == (c += 1, -4 >>> /[a2][^e]+$/ % (2 === [ , 0 ].length))) ? a++ : b++,
+ c = 1 + c, bar_1 && (bar_1[(c = 1 + c, (4 | (Infinity_2_1 = 0 == 38..toString())) ^ (NaN >>> [] | 0))] += !1),
+ 24..toString(), c = 1 + c, Infinity_2_1 && (Infinity_2_1.in >>>= !1), c = 1 + c,
+ Infinity_2 && (Infinity_2.null <<= 127 == 24..toString()), c = 1 + c, c += 1, c = 1 + c,
+ c += 1, --brake50 > 0; ) {
for (var brake51 = 5; a++ + true && brake51 > 0; --brake51) {
switch (c = 1 + c, c += 1, 0) {
case c = 1 + c, c += 1, NaN >> (1 / 0 >>> (5 ^ 23..toString())):
$ node good.js
null undefined 466 1611
$ node bad.js
null undefined 466 1611
$ node
> var run_code = require("./test/sandbox").run_code;
> run_code(fs.readFileSync("good.js", "utf8"));
'null undefined 466 1611\n'
> run_code(fs.readFileSync("bad.js", "utf8"));
'null undefined 454 1558\n'
What I need to figure out now is why test/sandbox.js doesn't turn that function() {} into [Function: 1]
It is emitting [Function: 1] on master...
$ cat sand.js
var run_code = require("./test/sandbox.js").run_code;
var minify = require(".").minify;
var orig = "var a = 1; var expr58 = a++ + function () {}; console.log(expr58);";
var code = orig;
var result = run_code(code);
console.log(code, "\n", result);
var code = minify(orig).code;
var result = run_code(code);
console.log(code, "\n", result);
var code = minify(orig, {output: {beautify: true}}).code;
var result = run_code(code);
console.log(code, "\n", result);
$ node sand.js
var a = 1; var expr58 = a++ + function () {}; console.log(expr58);
1[Function: 1]
var a=1,expr58=a+++function(){};console.log(expr58);
1[Function: 1]
var a = 1, expr58 = a++ + function() {};
console.log(expr58);
1[Function: 1]
It is emitting [Function: 1] on master...
Indeed you are correct. So what I discovered so far:
- using
node test.js, the difference is produced due tovar expr58 = a++ + function() {}; - using
sandbox.run_code(), you get the same difference, but due to https://github.com/mishoo/UglifyJS2/issues/2079#issuecomment-307474733 instead
The fact that the before/after console output are identical in these two cases almost let this run_code() issue slip away.
alexlamsl
on 10 Jun 2017
Okay, so this is still a false positive:
--- a/good.js
+++ b/bad.js
@@ -96,7 +96,7 @@ switch (c += 1, typeof a_1) {
for (var brake50 = 5; {
1.5: a++,
length: --b + (-30 !== (38..toString() > {} !== (Infinity_2 && (Infinity_2[void (c = 1 + c)] += [ , 0 ][1])))),
- foo: --b + (c = 1 + c, c = 1 + c, ({} >>> "foo") - true == (c += 1, -4 >>> /[a2][^e]+$/ % (2 === [ , 0 ].length))) ? a++ + function() {} : b++,
+ foo: --b + (c = 1 + c, c = 1 + c, ({} >>> "foo") - true == (c += 1, -4 >>> /[a2][^e]+$/ % (2 === [ , 0 ].length))) ? a++ : b++,
foo: -(5 == (false ^ {}) >= 0),
"\t": {
3: (c = 1 + c, (2 === [ , 0 ].length == "number" ^ NaN) * ((bar_1 && (bar_1[(c = 1 + c,
(Note the absence of function() {} in bad.js - the return value isn't being used, so drop_side_effects() got rid of the dead weight.)
Now it actually went and affect the same line var expr58 = a++ + function() {}; because we now end up with different number of digits:
> run_code(fs.readFileSync('../good.js','utf8'))
'137[Function: 25]\nnull undefined 466 1611\n'
> run_code(fs.readFileSync('../bad.js','utf8'))
'137[Function: 6]\nnull undefined 454 1558\n'
So the solution is to pad id within Function.prototype.toString override:
--- a/test/sandbox.js
+++ b/test/sandbox.js
@@ -19,7 +19,7 @@ function safe_log(arg, level) {
var FUNC_TOSTRING = [
"Function.prototype.toString = Function.prototype.valueOf = function() {",
- " var id = 0;",
+ " var id = 100000;",
" return function() {",
' if (this === Array) return "[Function: Array]";',
' if (this === Object) return "[Function: Object]";',
> run_code(fs.readFileSync('../good.js','utf8'))
'137[Function: 100025]\nnull undefined 514 1823\n'
> run_code(fs.readFileSync('../bad.js','utf8'))
'137[Function: 100006]\nnull undefined 514 1823\n'
I'm having trouble following this. Is this the well known sandbox issue where anything + function(){} is converted to anything, function(){} and the sandbox Function count gets out of whack?
kzc
on 10 Jun 2017
Reduced test case:
$ cat test.js
for (var i = 0; i < 100; i++) Math.PI + function() {};
console.log(1 + function() {});
$ uglifyjs test.js -cb bracketize -o min.js
$ cat min.js
for (var i = 0; i < 100; i++) {
Math.PI;
}
console.log(1 + function() {});
$ node
> var run_code=require("uglify-js/test/sandbox").run_code;
> run_code(fs.readFileSync("test.js", "utf8"));
'1[Function: 101]\n'
> run_code(fs.readFileSync("min.js", "utf8"));
'1[Function: 1]\n'
Note that in this case, it's the length of the function count which makes trouble, because it was used within a for-in loop
alexlamsl
on 10 Jun 2017
That was a known issue we discovered a month or two ago. I can't find the github issue.
I don't know how starting the sandbox Function number at 10000 fixes this issue though. It's something we cannot trap.
kzc
on 10 Jun 2017
This may better illustrate this particular issue:
$ cat test.js
for (var i = 0; i < 100; i++) {
Math.PI + function() {};
}
var j = 0, o = 1 + function() {};
for (var k in o) {
j++;
}
console.log(j);
$ uglifyjs test.js -cb bracketize -o min.js
$ cat min.js
for (var i = 0; i < 100; i++) {
Math.PI;
}
var j = 0, o = 1 + function() {};
for (var k in o) {
j++;
}
console.log(j);
$ node
> var run_code=require("uglify-js/test/sandbox").run_code;
> run_code(fs.readFileSync("test.js", "utf8"));
'16\n'
> run_code(fs.readFileSync("min.js", "utf8"));
'14\n'
With #2080:
> run_code(fs.readFileSync('../test.js','utf8'))
'19\n'
> run_code(fs.readFileSync('../min.js','utf8'))
'19\n'
I don't know how starting the sandbox Function number at 10000 fixes this issue though. It's something we cannot trap.
I believe it will fix this particular case, but in general we will have other false positives that remain. Unless of course I've overlooked something important :sweat_smile:
alexlamsl
on 10 Jun 2017
👍1
I get it now. Thanks.
A string was made with a sandbox Function id, and that string length influences the rest of the test. Your 100000 fix will reduce a certain class of false positives involving Function identity. However if the fuzzed code happens to examine the string elements themselves, the sandbox will always differ from the original node program.
kzc
on 10 Jun 2017
However if the fuzzed code happens to examine the string elements themselves, the sandbox will always differ from the original node program.
That's right - I do and will still get a bunch of [Function: 1] vs. [Function: 2] false positives every now and then.
alexlamsl
on 10 Jun 2017
@alexlamsl So a couple of false positives were found, but no true regressions found in fuzzing master since v3.0.15?
kzc
on 10 Jun 2017
@kzc there was #2062, otherwise the rest didn't make it.
(Haven't checked the current ufuzz progress from home as I'm travelling right now, so may be a few more surprises.)
alexlamsl
on 11 Jun 2017
Was this page helpful?
0 / 5 - 0 ratings
Related issues
alexlamsl
路
5Comments
alexlamsl
路
4Comments
buu700
路
5Comments
hacdias
路
5Comments
kzc
路
3Comments