keep_fargs_false: {
options = {
keep_fargs: false,
unused: true,
}
input: {
console.log(function f(a) {
return f.length;
}(), function g(b) {
return g;
}().length);
function h(c) {
return h.length;
}
function i(d) {
return i;
}
function j(e) {}
console.log(h(), i().length, j.length);
}
expect: {
console.log(function f(a) {
return f.length;
}(), function g(b) {
return g;
}().length);
function h(c) {
return h.length;
}
function i(d) {
return i;
}
function j(e) {}
console.log(h(), i().length, j.length);
}
expect_stdout: [
"1 1",
"1 1 1",
]
}
keep_fargs_true: {
options = {
keep_fargs: true,
unused: true,
}
input: {
console.log(function f(a) {
return f.length;
}(), function g(b) {
return g;
}().length);
function h(c) {
return h.length;
}
function i(d) {
return i;
}
function j(e) {}
console.log(h(), i().length, j.length);
}
expect: {
console.log(function f(a) {
return f.length;
}(), function g(b) {
return g;
}().length);
function h(c) {
return h.length;
}
function i(d) {
return i;
}
function j(e) {}
console.log(h(), i().length, j.length);
}
expect_stdout: [
"1 1",
"1 1 1",
]
}
replace_index_strict: {
options = {
arguments: true,
evaluate: true,
keep_fargs: false,
properties: true,
reduce_vars: true,
}
input: {
"use strict";
(function() {
console.log(arguments[1], arguments["1"], arguments["foo"]);
})("bar", 42);
(function(a, b) {
console.log(arguments[1], arguments["1"], arguments["foo"]);
})("bar", 42);
}
expect: {
"use strict";
(function(argument_0, argument_1) {
console.log(argument_1, argument_1, arguments.foo);
})("bar", 42);
(function(a, b) {
console.log(b, b, arguments.foo);
})("bar", 42);
}
expect_stdout: [
"42 42 undefined",
"42 42 undefined",
]
}
issue_1858: {
options = {
collapse_vars: true,
keep_fargs: false,
pure_getters: true,
reduce_vars: true,
unused: true,
}
input: {
console.log(function(x) {
var a = {}, b = a.b = x;
return a.b + b;
}(1));
}
expect: {
console.log(function() {
var a = {}, b = a.b = 1;
return a.b + b;
}());
}
expect_stdout: "2"
}
issue_2187_2: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
var b = 1;
console.log(function(a) {
return a && ++b;
}(b--));
}
expect: {
var b = 1;
console.log(function() {
return b-- && ++b;
}());
}
expect_stdout: "1"
}
issue_2203_2: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
a = "PASS";
console.log({
a: "FAIL",
b: function() {
return function(c) {
return c.a;
}((String, (Object, function() {
return this;
}())));
}
}.b());
}
expect: {
a = "PASS";
console.log({
a: "FAIL",
b: function() {
return function() {
return (String, (Object, function() {
return this;
}())).a;
}();
}
}.b());
}
expect_stdout: "PASS"
}
issue_2298: {
options = {
collapse_vars: true,
keep_fargs: false,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
!function() {
function f() {
var a = undefined;
var undefined = a++;
try {
!function g(b) {
b[1] = "foo";
}();
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
}
f();
}();
}
expect: {
!function() {
(function() {
try {
!function() {
(void 0)[1] = "foo";
}();
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
})();
}();
}
expect_stdout: "PASS"
}
issue_2319_1: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
console.log(function(a) {
return a;
}(!function() {
return this;
}()));
}
expect: {
console.log(function() {
return !function() {
return this;
}();
}());
}
expect_stdout: "false"
}
issue_2319_2: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
console.log(function(a) {
"use strict";
return a;
}(!function() {
return this;
}()));
}
expect: {
console.log(function(a) {
"use strict";
return a;
}(!function() {
return this;
}()));
}
expect_stdout: "false"
}
issue_2319_3: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
"use strict";
console.log(function(a) {
return a;
}(!function() {
return this;
}()));
}
expect: {
"use strict";
console.log(function() {
return !function() {
return this;
}();
}());
}
expect_stdout: "true"
}
issue_2425_1: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
var a = 8;
(function(b) {
b.toString();
})(--a, a |= 10);
console.log(a);
}
expect: {
var a = 8;
(function(b) {
b.toString();
})(--a, a |= 10);
console.log(a);
}
expect_stdout: "15"
}
issue_2425_2: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
var a = 8;
(function(b, c) {
b.toString();
})(--a, a |= 10);
console.log(a);
}
expect: {
var a = 8;
(function(b) {
b.toString();
})(--a, a |= 10);
console.log(a);
}
expect_stdout: "15"
}
issue_2425_3: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
var a = 8;
(function(b, b) {
b.toString();
})(--a, a |= 10);
console.log(a);
}
expect: {
var a = 8;
(function() {
(a |= 10).toString();
})(--a);
console.log(a);
}
expect_stdout: "15"
}
issue_2436_13: {
options = {
collapse_vars: true,
keep_fargs: false,
passes: 2,
reduce_vars: true,
unused: true,
}
input: {
var a = "PASS";
(function() {
function f(b) {
(function g(b) {
var b = b && (b.null = "FAIL");
})(a);
}
f();
})();
console.log(a);
}
expect: {
var a = "PASS";
(function() {
(function() {
(function() {
a && (a.null = "FAIL");
})();
})();
})();
console.log(a);
}
expect_stdout: "PASS"
}
issue_2506: {
options = {
collapse_vars: true,
keep_fargs: false,
passes: 2,
reduce_vars: true,
unused: true,
}
input: {
var c = 0;
function f0(bar) {
function f1(Infinity_2) {
function f13(NaN) {
if (false <= NaN & this >> 1 >= 0) {
c++;
}
}
var b_2 = f13(NaN, c++);
}
var bar = f1(-3, -1);
}
f0(false);
console.log(c);
}
expect: {
var c = 0;
function f0(bar) {
(function() {
(function() {
if (false <= 0/0 & this >> 1 >= 0)
c++;
})(c++);
})();
}
f0(false);
console.log(c);
}
expect_stdout: "1"
}
issue_2226_1: {
options = {
keep_fargs: false,
side_effects: true,
unused: true,
}
input: {
function f1() {
var a = b;
a += c;
}
function f2(a) {
a <<= b;
}
function f3(a) {
--a;
}
function f4() {
var a = b;
return a *= c;
}
function f5(a) {
x(a /= b);
}
}
expect: {
function f1() {
b;
c;
}
function f2(a) {
b;
}
function f3(a) {
0;
}
function f4() {
var a = b;
return a *= c;
}
function f5(a) {
x(a /= b);
}
}
}
issue_2226_2: {
options = {
collapse_vars: true,
keep_fargs: false,
sequences: true,
side_effects: true,
unused: true,
}
input: {
console.log(function(a, b) {
a += b;
return a;
}(1, 2));
}
expect: {
console.log(function(a) {
return a += 2;
}(1));
}
expect_stdout: "3"
}
issue_2226_3: {
options = {
collapse_vars: true,
keep_fargs: false,
side_effects: true,
unused: true,
}
input: {
console.log(function(a, b) {
a += b;
return a;
}(1, 2));
}
expect: {
console.log(function(a) {
return a += 2;
}(1));
}
expect_stdout: "3"
}
issue_3192: {
options = {
keep_fargs: false,
unused: true,
}
input: {
(function(a) {
console.log(a = "foo", arguments[0]);
})("bar");
(function(a) {
"use strict";
console.log(a = "foo", arguments[0]);
})("bar");
}
expect: {
(function(a) {
console.log(a = "foo", arguments[0]);
})("bar");
(function() {
"use strict";
console.log("foo", arguments[0]);
})("bar");
}
expect_stdout: [
"foo foo",
"foo bar",
]
}
if_increment: {
options = {
evaluate: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
console.log(function(a) {
if (console)
return ++a;
}(0));
}
expect: {
console.log(function() {
if (console)
return 1;
}());
}
expect_stdout: "1"
}
try_increment: {
options = {
evaluate: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
console.log(function(a) {
try {
return ++a;
} catch (e) {}
}(0));
}
expect: {
console.log(function() {
try {
return 1;
} catch (e) {}
}());
}
expect_stdout: "1"
}
issue_2630_3: {
options = {
inline: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
var x = 2, a = 1;
(function() {
function f1(a) {
f2();
--x >= 0 && f1({});
}
f1(a++);
function f2() {
a++;
}
})();
console.log(a);
}
expect: {
var x = 2, a = 1;
(function() {
(function f1() {
f2();
--x >= 0 && f1();
})(a++);
function f2() {
a++;
}
})();
console.log(a);
}
expect_stdout: "5"
}
issue_3364: {
options = {
functions: true,
keep_fargs: false,
reduce_vars: true,
toplevel: true,
unused: true,
}
mangle = {}
input: {
var s = 2, a = 100, b = 10, c = 0;
function f(p, e, r) {
try {
for (var i = 1; i-- > 0;)
var a = function(x) {
function g(y) {
y && y[a++];
}
var x = g(--s >= 0 && f(c++));
for (var j = 1; --j > 0;);
}();
} catch (e) {
try {
return;
} catch (z) {
for (var k = 1; --k > 0;) {
for (var l = 1; l > 0; --l) {
var n = function() {};
for (var k in n)
var o = (n, k);
}
}
}
}
}
var r = f();
console.log(c);
}
expect: {
var s = 2, c = 0;
(function o() {
try {
for (var r = 1; r-- > 0;)
var n = function() {
(function(r) {
r && r[n++];
})(--s >= 0 && o(c++));
for (var r = 1; --r > 0;);
}();
} catch (r) {
try {
return;
} catch (r) {
for (var a = 1; --a > 0;)
for (var f = 1; f > 0; --f) {
function t() {}
for (var a in t);
}
}
}
})();
console.log(c);
}
expect_stdout: "2"
}
defun_label: {
options = {
keep_fargs: false,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
!function() {
function f(a) {
L: {
if (a) break L;
return 1;
}
}
console.log(f(2));
}();
}
expect: {
!function() {
console.log(function() {
L: {
if (2) break L;
return 1;
}
}());
}();
}
expect_stdout: true
}
iife_func_side_effects: {
options = {
keep_fargs: false,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
function x() {
console.log("x");
}
function y() {
console.log("y");
}
function z() {
console.log("z");
}
(function(a, b, c) {
function y() {
console.log("FAIL");
}
return y + b();
})(x(), function() {
return y();
}, z());
}
expect: {
function x() {
console.log("x");
}
function y() {
console.log("y");
}
function z() {
console.log("z");
}
(function(b) {
return function() {
console.log("FAIL");
} + b();
})((x(), function() {
return y();
}), z());
}
expect_stdout: [
"x",
"z",
"y",
]
}
issue_1595_1: {
options = {
evaluate: true,
keep_fargs: false,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
(function f(a) {
return f(a + 1);
})(2);
}
expect: {
(function f(a) {
return f(a + 1);
})(2);
}
}
issue_1595_2: {
options = {
evaluate: true,
keep_fargs: false,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
(function f(a) {
return g(a + 1);
})(2);
}
expect: {
(function(a) {
return g(a + 1);
})(2);
}
}
issue_1595_3: {
options = {
evaluate: true,
keep_fargs: false,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
(function f(a) {
return g(a + 1);
})(2);
}
expect: {
(function() {
return g(3);
})();
}
}
issue_1595_4: {
options = {
evaluate: true,
keep_fargs: false,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
(function iife(a, b, c) {
console.log(a, b, c);
if (a) iife(a - 1, b, c);
})(3, 4, 5);
}
expect: {
(function iife(a, b, c) {
console.log(a, b, c);
if (a) iife(a - 1, b, c);
})(3, 4, 5);
}
expect_stdout: true
}
duplicate_lambda_defun_name_1: {
options = {
keep_fargs: false,
reduce_vars: true,
}
input: {
console.log(function f(a) {
function f() {}
return f.length;
}());
}
expect: {
console.log(function f(a) {
function f() {}
return f.length;
}());
}
expect_stdout: "0"
}
duplicate_lambda_defun_name_2: {
options = {
keep_fargs: false,
passes: 2,
reduce_vars: true,
unused: true,
}
input: {
console.log(function f(a) {
function f() {}
return f.length;
}());
}
expect: {
console.log(function() {
return function() {}.length;
}());
}
expect_stdout: "0"
}
function_name_mangle: {
options = {
keep_fargs: false,
keep_fnames: true,
reduce_vars: true,
unused: true,
}
mangle = {}
input: {
(function() {
function foo(bar) {}
console.log(typeof foo);
})();
}
expect_exact: "(function(){console.log(typeof function o(){})})();"
expect_stdout: "function"
}
function_name_mangle_ie8: {
options = {
keep_fargs: false,
keep_fnames: true,
reduce_vars: true,
unused: true,
}
mangle = {
ie: true,
toplevel: true,
}
input: {
(function() {
function foo(bar) {}
console.log(typeof foo);
})();
}
expect_exact: "(function(){console.log(typeof function o(){})})();"
expect_stdout: "function"
}
issue_3420_1: {
options = {
keep_fargs: false,
unused: true,
}
input: {
console.log(function() {
return function(a, b, c, d) {
return a + b;
};
}().length);
}
expect: {
console.log(function() {
return function(a, b, c, d) {
return a + b;
};
}().length);
}
expect_stdout: "4"
}
issue_3420_2: {
options = {
inline: true,
keep_fargs: false,
unused: true,
}
input: {
console.log(function() {
return function(a, b, c, d) {
return a + b;
};
}().length);
}
expect: {
console.log(function(a, b, c, d) {
return a + b;
}.length);
}
expect_stdout: "4"
}
issue_3420_3: {
options = {
inline: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
console.log(function() {
function f(a, b, c, d) {
return a + b;
}
return f;
}().length);
}
expect: {
console.log(function(a, b, c, d) {
return a + b;
}.length);
}
expect_stdout: "4"
}
issue_3423_1: {
options = {
keep_fargs: false,
unused: true,
}
input: {
function f(g) {
console.log(g.length);
}
f(function(a) {});
}
expect: {
function f(g) {
console.log(g.length);
}
f(function(a) {});
}
expect_stdout: "1"
}
issue_3423_2: {
options = {
keep_fargs: false,
unused: true,
}
input: {
new function(a) {
console.log(this.constructor.length);
}();
}
expect: {
new function(a) {
console.log(this.constructor.length);
}();
}
expect_stdout: "1"
}
collapse_vars_repeated: {
options = {
booleans: true,
collapse_vars: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
hoist_funs: true,
if_return: true,
join_vars: true,
keep_fargs: false,
loops: true,
properties: true,
reduce_funcs: true,
reduce_vars: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f1() {
var dummy = 3, a = 5, unused = 2, a = 1, a = 3;
return -a;
}
function f2(x) {
var a = 3, a = x;
return a;
}
(function(x) {
var a = "GOOD" + x, e = "BAD", k = "!", e = a;
console.log(e + k);
})("!"),
(function(x) {
var a = "GOOD" + x, e = "BAD" + x, k = "!", e = a;
console.log(e + k);
})("!");
}
expect: {
function f1() {
return -3;
}
function f2(x) {
return x;
}
(function() {
console.log("GOOD!!");
})(),
(function() {
console.log("GOOD!!");
})();
}
expect_stdout: true
}
chained_3: {
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
input: {
console.log(function(a, b) {
var c = a, c = b;
b++;
return c;
}(1, 2));
}
expect: {
console.log(function(b) {
var c = 1, c = b;
b++;
return c;
}(2));
}
expect_stdout: "2"
}
replace_all_var_scope: {
rename = true
options = {
collapse_vars: true,
keep_fargs: false,
unused: true,
}
mangle = {}
input: {
var a = 100, b = 10;
(function(r, a) {
switch (~a) {
case (b += a):
case a++:
}
})(--b, a);
console.log(a, b);
}
expect: {
var a = 100, b = 10;
(function(c) {
switch (~a) {
case (b += a):
case c++:
}
})((--b, a));
console.log(a, b);
}
expect_stdout: "100 109"
}
issue_1583: {
options = {
keep_fargs: false,
passes: 2,
reduce_funcs: true,
reduce_vars: true,
unused: true,
}
input: {
function m(t) {
(function(e) {
t = e();
})(function() {
return (function(a) {
return a;
})(function(a) {});
});
}
}
expect: {
function m(t) {
(function() {
(function() {
return (function() {
return function(a) {};
})();
})();
})();
}
}
}
issues_3267_1: {
options = {
collapse_vars: true,
conditionals: true,
dead_code: true,
evaluate: true,
inline: true,
keep_fargs: false,
reduce_vars: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
(function(x) {
x();
})(function() {
(function(i) {
if (i)
return console.log("PASS");
throw "FAIL";
})(Object());
});
}
expect: {
!function() {
if (Object())
return console.log("PASS");
throw "FAIL";
}();
}
expect_stdout: "PASS"
}
trailing_argument_side_effects: {
options = {
keep_fargs: false,
unused: true,
}
input: {
function f() {
return "FAIL";
}
console.log(function(a, b) {
return b || "PASS";
}(f()));
}
expect: {
function f() {
return "FAIL";
}
console.log(function(b) {
return b || "PASS";
}(void f()));
}
expect_stdout: "PASS"
}
recursive_iife_1: {
options = {
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
console.log(function f(a, b) {
return b || f("FAIL", "PASS");
}());
}
expect: {
console.log(function f(a, b) {
return b || f(0, "PASS");
}());
}
expect_stdout: "PASS"
}
recursive_iife_2: {
options = {
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
console.log(function f(a, b) {
return b || f("FAIL", "PASS");
}(null, 0));
}
expect: {
console.log(function f(a, b) {
return b || f(0, "PASS");
}(0, 0));
}
expect_stdout: "PASS"
}
recursive_iife_3: {
options = {
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
var a = 1, c = "PASS";
(function() {
function f(b, d, e) {
a-- && f(null, 42, 0);
e && (c = "FAIL");
d && d.p;
}
var a_1 = f();
})();
console.log(c);
}
expect: {
var a = 1, c = "PASS";
(function() {
(function f(b, d, e) {
a-- && f(0, 42, 0);
e && (c = "FAIL");
d && d.p;
})();
})();
console.log(c);
}
expect_stdout: "PASS"
}
issue_3619: {
options = {
keep_fargs: false,
unused: true,
}
input: {
var a = 1, b = "FAIL";
(function f(c, d) {
function g() {
d && (b = "PASS", 0 <= --a && g());
0 <= --a && f(0, "function");
}
g();
})();
console.log(b);
}
expect: {
var a = 1, b = "FAIL";
(function f(c, d) {
function g() {
d && (b = "PASS", 0 <= --a && g());
0 <= --a && f(0, "function");
}
g();
})();
console.log(b);
}
expect_stdout: "PASS"
}
issue_4353_1: {
options = {
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
console.log(function f(a) {}.length);
}
expect: {
console.log(function(a) {}.length);
}
expect_stdout: "1"
}
issue_4353_2: {
options = {
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
(function f(a) {
while (console.log("PASS"));
})();
}
expect: {
(function() {
while (console.log("PASS"));
})();
}
expect_stdout: "PASS"
}
