join_vars_assign: {
options = {
join_vars: true,
unused: true,
}
input: {
var y, x;
x = Object("PAS");
y = Object("S");
console.log(x + y);
}
expect: {
var x = Object("PAS"), y = Object("S");
console.log(x + y);
}
expect_stdout: "PASS"
}
join_object_assignments_1: {
options = {
evaluate: true,
join_vars: true,
}
input: {
console.log(function() {
var x = {
a: 1,
c: (console.log("c"), "C"),
};
x.b = 2;
x[3] = function() {
console.log(x);
},
x["a"] = /foo/,
x.bar = x;
return x;
}());
}
expect: {
console.log(function() {
var x = {
a: 1,
c: (console.log("c"), "C"),
b: 2,
3: function() {
console.log(x);
},
a: /foo/,
};
x.bar = x;
return x;
}());
}
expect_stdout: true
}
join_object_assignments_2: {
options = {
evaluate: true,
hoist_props: true,
join_vars: true,
passes: 3,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
var o = {
foo: 1,
};
o.bar = 2;
o.baz = 3;
console.log(o.foo, o.bar + o.bar, o.foo * o.bar * o.baz);
}
expect: {
console.log(1, 4, 6);
}
expect_stdout: "1 4 6"
}
join_object_assignments_3: {
options = {
evaluate: true,
join_vars: true,
}
input: {
console.log(function() {
var o = {
a: "PASS",
}, a = o.a;
o.a = "FAIL";
return a;
}());
}
expect: {
console.log(function() {
var o = {
a: "PASS",
}, a = o.a;
o.a = "FAIL";
return a;
}());
}
expect_stdout: "PASS"
}
join_object_assignments_4: {
options = {
join_vars: true,
sequences: true,
}
input: {
var o;
console.log(o);
o = {};
o.a = "foo";
console.log(o.b);
o.b = "bar";
console.log(o.a);
}
expect: {
var o;
console.log(o),
o = {
a: "foo",
},
console.log(o.b),
o.b = "bar",
console.log(o.a);
}
expect_stdout: [
"undefined",
"undefined",
"foo",
]
}
join_object_assignments_return_1: {
options = {
join_vars: true,
}
input: {
console.log(function() {
var o = {
p: 3
};
return o.q = "foo";
}());
}
expect: {
console.log(function() {
var o = {
p: 3,
q: "foo"
};
return o.q;
}());
}
expect_stdout: "foo"
}
join_object_assignments_return_2: {
options = {
join_vars: true,
}
input: {
console.log(function() {
var o = {
p: 3
};
return o.q = /foo/,
o.r = "bar";
}());
}
expect: {
console.log(function() {
var o = {
p: 3,
q: /foo/,
r: "bar"
};
return o.r;
}());
}
expect_stdout: "bar"
}
join_object_assignments_return_3: {
options = {
join_vars: true,
}
input: {
console.log(function() {
var o = {
p: 3
};
return o.q = "foo",
o.p += "",
console.log(o.q),
o.p;
}());
}
expect: {
console.log(function() {
var o = {
p: 3,
q: "foo"
};
return o.p += "",
console.log(o.q),
o.p;
}());
}
expect_stdout: [
"foo",
"3",
]
}
join_object_assignments_for: {
options = {
join_vars: true,
}
input: {
console.log(function() {
var o = {
p: 3
};
for (o.q = "foo"; console.log(o.q););
return o.p;
}());
}
expect: {
console.log(function() {
for (var o = {
p: 3,
q: "foo"
}; console.log(o.q););
return o.p;
}());
}
expect_stdout: [
"foo",
"3",
]
}
join_object_assignments_if: {
options = {
join_vars: true,
}
input: {
console.log(function() {
var o = {};
if (o.a = "PASS") return o.a;
}())
}
expect: {
console.log(function() {
var o = { a: "PASS" };
if (o.a) return o.a;
}());
}
expect_stdout: "PASS"
}
join_object_assignments_forin: {
options = {
join_vars: true,
}
input: {
console.log(function() {
var o = {};
for (var a in o.a = "PASS", o)
return o[a];
}())
}
expect: {
console.log(function() {
var o = { a: "PASS" }, a;
for (a in o)
return o[a];
}());
}
expect_stdout: "PASS"
}
join_object_assignments_negative: {
options = {
evaluate: true,
join_vars: true,
properties: true,
}
input: {
var o = {};
o[0] = 0;
o[-0] = 1;
o[-1] = 2;
console.log(o[0], o[-0], o[-1]);
}
expect: {
var o = {
0: 0,
0: 1,
"-1": 2
};
console.log(o[0], o[-0], o[-1]);
}
expect_stdout: "1 1 2"
}
join_object_assignments_NaN_1: {
options = {
join_vars: true,
}
input: {
var o = {};
o[NaN] = 1;
o[0/0] = 2;
console.log(o[NaN], o[NaN]);
}
expect: {
var o = {};
o[NaN] = 1;
o[0/0] = 2;
console.log(o[NaN], o[NaN]);
}
expect_stdout: "2 2"
}
join_object_assignments_NaN_2: {
options = {
evaluate: true,
join_vars: true,
properties: true,
}
input: {
var o = {};
o[NaN] = 1;
o[0/0] = 2;
console.log(o[NaN], o[NaN]);
}
expect: {
var o = {
NaN: 1,
NaN: 2
};
console.log(o.NaN, o.NaN);
}
expect_stdout: "2 2"
}
join_object_assignments_null_0: {
options = {
join_vars: true,
}
input: {
var o = {};
o[null] = 1;
console.log(o[null]);
}
expect: {
var o = {};
o[null] = 1;
console.log(o[null]);
}
expect_stdout: "1"
}
join_object_assignments_null_1: {
options = {
evaluate: true,
join_vars: true,
properties: true,
}
input: {
var o = {};
o[null] = 1;
console.log(o[null]);
}
expect: {
var o = {
null: 1
};
console.log(o.null);
}
expect_stdout: "1"
}
join_object_assignments_void_0: {
options = {
evaluate: true,
join_vars: true,
}
input: {
var o = {};
o[void 0] = 1;
console.log(o[void 0]);
}
expect: {
var o = {
undefined: 1
};
console.log(o[void 0]);
}
expect_stdout: "1"
}
join_object_assignments_undefined_1: {
options = {
join_vars: true,
}
input: {
var o = {};
o[undefined] = 1;
console.log(o[undefined]);
}
expect: {
var o = {};
o[void 0] = 1;
console.log(o[void 0]);
}
expect_stdout: "1"
}
join_object_assignments_undefined_2: {
options = {
evaluate: true,
join_vars: true,
properties: true,
}
input: {
var o = {};
o[undefined] = 1;
console.log(o[undefined]);
}
expect: {
var o = {
undefined : 1
};
console.log(o[void 0]);
}
expect_stdout: "1"
}
join_object_assignments_Infinity: {
options = {
evaluate: true,
join_vars: true,
properties: true,
}
input: {
var o = {};
o[Infinity] = 1;
o[1/0] = 2;
o[-Infinity] = 3;
o[-1/0] = 4;
console.log(o[Infinity], o[1/0], o[-Infinity], o[-1/0]);
}
expect: {
var o = {
Infinity: 1,
Infinity: 2,
"-Infinity": 3,
"-Infinity": 4
};
console.log(o[1/0], o[1/0], o[-1/0], o[-1/0]);
}
expect_stdout: "2 2 4 4"
}
join_object_assignments_regex: {
options = {
evaluate: true,
join_vars: true,
properties: true,
}
input: {
var o = {};
o[/rx/] = 1;
console.log(o[/rx/]);
}
expect: {
var o = {
"/rx/": 1
};
console.log(o[/rx/]);
}
expect_stdout: "1"
}
issue_2816: {
options = {
join_vars: true,
}
input: {
"use strict";
var o = {
a: 1
};
o.b = 2;
o.a = 3;
o.c = 4;
console.log(o.a, o.b, o.c);
}
expect: {
"use strict";
var o = {
a: 1,
b: 2
};
o.a = 3;
o.c = 4;
console.log(o.a, o.b, o.c);
}
expect_stdout: "3 2 4"
}
issue_2893_1: {
options = {
join_vars: true,
}
input: {
var o = {
get a() {
return "PASS";
},
};
o.a = "FAIL";
console.log(o.a);
}
expect: {
var o = {
get a() {
return "PASS";
},
};
o.a = "FAIL";
console.log(o.a);
}
expect_stdout: "PASS"
}
issue_2893_2: {
options = {
join_vars: true,
}
input: {
var o = {
set a(v) {
this.b = v;
},
b: "FAIL",
};
o.a = "PASS";
console.log(o.b);
}
expect: {
var o = {
set a(v) {
this.b = v;
},
b: "FAIL",
};
o.a = "PASS";
console.log(o.b);
}
expect_stdout: "PASS"
}
join_expr: {
options = {
evaluate: true,
join_vars: true,
}
input: {
var c = "FAIL";
(function() {
var a = 0;
switch ((a = {}) && (a.b = 0)) {
case 0:
c = "PASS";
}
})();
console.log(c);
}
expect: {
var c = "FAIL";
(function() {
var a = 0, a = { b: 0 };
switch (a.b) {
case 0:
c = "PASS";
}
})();
console.log(c);
}
expect_stdout: "PASS"
}
issue_3786: {
options = {
join_vars: true,
}
input: {
try {
var a = b;
b = 0;
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
}
expect: {
try {
var a = b;
b = 0;
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
}
expect_stdout: "PASS"
}
issue_3788: {
options = {
inline: true,
join_vars: true,
reduce_vars: true,
sequences: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
var a = "FAIL";
function f() {
function g() {
function h() {
a = 42;
a = "PASS";
return "PASS";
}
var b = h();
console.log(b);
}
g();
}
f();
console.log(a);
}
expect: {
var b, a = "FAIL";
a = 42,
a = "PASS",
b = "PASS",
console.log(b),
console.log(a);
}
expect_stdout: [
"PASS",
"PASS",
]
}
issue_3789_1: {
options = {
join_vars: true,
}
input: {
try {
c;
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
try {} catch (c) {
var a;
c = 0;
}
}
expect: {
try {
c;
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
try {} catch (c) {
var a;
c = 0;
}
}
expect_stdout: "PASS"
}
issue_3789_2: {
options = {
join_vars: true,
}
input: {
try {
c;
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
try {} catch (c) {
try {} catch (c) {
var a;
c = 0;
}
}
}
expect: {
try {
c;
console.log("FAIL");
} catch (e) {
console.log("PASS");
}
try {} catch (c) {
try {} catch (c) {
var a;
c = 0;
}
}
}
expect_stdout: "PASS"
}
issue_3791_1: {
options = {
collapse_vars: true,
join_vars: true,
toplevel: true,
}
input: {
var a = "PASS";
switch (a) {
case console:
}
var a = a;
console.log(a);
}
expect: {
var a;
switch (a = "PASS") {
case console:
}
var a = a;
console.log(a);
}
expect_stdout: "PASS"
}
issue_3791_2: {
options = {
collapse_vars: true,
join_vars: true,
}
input: {
function f(a) {
var b;
return b = a || g;
function g() {
return b;
}
}
console.log(typeof f()());
}
expect: {
function f(a) {
var b;
return b = a || g;
function g() {
return b;
}
}
console.log(typeof f()());
}
expect_stdout: "function"
}
issue_3795: {
options = {
booleans: true,
collapse_vars: true,
dead_code: true,
evaluate: true,
join_vars: true,
keep_fargs: false,
loops: true,
passes: 2,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
var a = "FAIL";
function f(b, c) {
for (var i = 5; c && i; --i) return -1;
a = "PASS";
}
var d = f(a = 42, d);
console.log(a, d);
}
expect: {
var a = "FAIL", d = function() {
if (void 0) return -1;
a = "PASS";
}(a = 42);
console.log(a, d);
}
expect_stdout: "PASS undefined"
}
if_body: {
options = {
join_vars: true,
}
input: {
var a;
if (x)
var b;
else
var c;
}
expect: {
var a, b, c;
if (x);
else;
}
}
if_switch: {
options = {
join_vars: true,
}
input: {
var a;
if (x) switch (y) {
case 1:
var b;
default:
var c;
}
}
expect: {
var a, b, c;
if (x) switch (y) {
case 1:
default:
}
}
}
loop_body_1: {
options = {
join_vars: true,
}
input: {
var a;
for (;x;)
var b;
}
expect: {
for (var a, b; x;);
}
}
loop_body_2: {
options = {
join_vars: true,
}
input: {
for (var a; x;)
var b;
}
expect: {
for (var a, b; x;);
}
}
loop_body_3: {
options = {
join_vars: true,
}
input: {
var a;
for (var b; x;)
var c;
}
expect: {
for (var a, b, c; x;);
}
}
conditional_assignments_1: {
options = {
conditionals: true,
join_vars: true,
sequences: true,
}
input: {
function f(b, c, d) {
var a = b;
if (c) a = d;
return a;
}
function g(b, c, d) {
var a = b;
if (c); else a = d;
return a;
}
console.log(f("FAIL", 1, "PASS"), g("PASS", 1, "FAIL"));
}
expect: {
function f(b, c, d) {
var a = c ? d : b;
return a;
}
function g(b, c, d) {
var a = c ? b : d;
return a;
}
console.log(f("FAIL", 1, "PASS"), g("PASS", 1, "FAIL"));
}
expect_stdout: "PASS PASS"
}
conditional_assignments_2: {
options = {
conditionals: true,
join_vars: true,
sequences: true,
}
input: {
function f1(c, d) {
var a = b;
if (c) a = d;
return a;
}
function f2(b, d) {
var a = b;
if (c) a = d;
return a;
}
function f3(b, c) {
var a = b;
if (c) a = d;
return a;
}
}
expect: {
function f1(c, d) {
var a = b;
return c && (a = d), a;
}
function f2(b, d) {
var a = b;
return c && (a = d), a;
}
function f3(b, c) {
var a = b;
return c && (a = d), a;
}
}
}
conditional_assignments_3: {
options = {
conditionals: true,
sequences: true,
}
input: {
console.log(function(b) {
var a = "PASS";
if (b) a = a;
return a;
}(0, 1));
}
expect: {
console.log(function(b) {
var a = "PASS";
return b && (a = a), a;
}(0, 1));
}
expect_stdout: "PASS"
}
issue_3856: {
options = {
booleans: true,
conditionals: true,
if_return: true,
join_vars: true,
sequences: true,
}
input: {
console.log(function() {
(function() {
var a;
if (!a) {
a = 0;
for (var b; !console;);
return 0;
}
if (a) return 1;
})();
}());
}
expect: {
console.log(function() {
(function() {
var a, b;
if (a) return a, 1;
for (a = 0; !console;);
return 0;
})();
}());
}
expect_stdout: "undefined"
}
issue_3916_1: {
options = {
join_vars: true,
}
input: {
var o = {};
o.p = "PASS";
o.__proto__ = 42;
o.q = "FAIL";
o.__proto__ = {
p: "FAIL",
q: "PASS",
};
o.__proto__ = "foo";
console.log(typeof o.__proto__, o.p, delete o.q, o.q);
}
expect: {
var o = {
p: "PASS",
__proto__: 42,
};
o.q = "FAIL";
o.__proto__ = {
p: "FAIL",
q: "PASS",
};
o.__proto__ = "foo";
console.log(typeof o.__proto__, o.p, delete o.q, o.q);
}
expect_stdout: "object PASS true PASS"
}
issue_3916_2: {
options = {
join_vars: true,
}
input: {
var log = console.log, o = {};
o.p = "FAIL 1";
o.__proto__ = {
get p() {
return "FAIL 2";
},
set p(u) {
log("FAIL 3");
},
set q(v) {
log("PASS 1");
},
get q() {
return "PASS 3";
},
};
o.p = "PASS 2";
o.q = "FAIL 4";
log(o.p);
log(o.q);
}
expect: {
var log = console.log, o = {
p: "FAIL 1",
__proto__: {
get p() {
return "FAIL 2";
},
set p(u) {
log("FAIL 3");
},
set q(v) {
log("PASS 1");
},
get q() {
return "PASS 3";
},
},
};
o.p = "PASS 2";
o.q = "FAIL 4";
log(o.p);
log(o.q);
}
expect_stdout: [
"PASS 1",
"PASS 2",
"PASS 3",
]
}
assign_var: {
options = {
join_vars: true,
}
input: {
b = "foo";
var a = [ , "bar" ];
console.log(b);
for (var b in a)
console.log(b, a[b]);
}
expect: {
var b = "foo", a = [ , "bar" ], b;
console.log(b);
for (b in a)
console.log(b, a[b]);
}
expect_stdout: [
"foo",
"1 bar",
]
}
assign_for_var: {
options = {
join_vars: true,
}
input: {
i = "foo",
a = new Array(i, "bar");
for (var i = 2; --i >= 0;) {
console.log(a[i]);
for (var a in i);
}
}
expect: {
for (var i = "foo", a = new Array(i, "bar"), i = 2; --i >= 0;) {
console.log(a[i]);
for (var a in i);
}
}
expect_stdout: [
"bar",
"foo",
]
}
assign_sequence_var: {
options = {
join_vars: true,
}
input: {
var a = 0, b = 1;
console.log(a),
a++,
b = 2;
var c = 3;
console.log(a, b, c);
}
expect: {
var a = 0, b = 1;
console.log(a),
a++;
var b = 2, c = 3;
console.log(a, b, c);
}
expect_stdout: [
"0",
"1 2 3",
]
}
