if_return_1: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f(x) {
if (x) {
return true;
}
}
}
expect: {
function f(x){if(x)return!0}
}
}
if_return_2: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f(x, y) {
if (x)
return 3;
if (y)
return c();
}
}
expect: {
function f(x,y){return x?3:y?c():void 0}
}
}
if_return_3: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f(x) {
a();
if (x) {
b();
return false;
}
}
}
expect: {
function f(x){if(a(),x)return b(),!1}
}
}
if_return_4: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f(x, y) {
a();
if (x) return 3;
b();
if (y) return c();
}
}
expect: {
function f(x,y){return a(),x?3:(b(),y?c():void 0)}
}
}
if_return_5: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f() {
if (x)
return;
return 7;
if (y)
return j;
}
}
expect: {
function f(){if(!x)return 7}
}
}
if_return_6: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f(x) {
return x ? true : void 0;
return y;
}
}
expect: {
// suboptimal
function f(x){return!!x||void 0}
}
}
if_return_7: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f(x) {
if (x) {
return true;
}
foo();
bar();
}
}
expect: {
function f(x){if(x)return!0;foo(),bar()}
}
}
if_return_8: {
options = {
conditionals: true,
if_return: true,
sequences: true,
side_effects: true,
}
input: {
function f(e) {
if (2 == e) return foo();
if (3 == e) return bar();
if (4 == e) return baz();
fail(e);
}
function g(e) {
if (a(e)) return foo();
if (b(e)) return bar();
if (c(e)) return baz();
fail(e);
}
function h(e) {
if (a(e)) return foo();
else if (b(e)) return bar();
else if (c(e)) return baz();
else fail(e);
}
function i(e) {
if (a(e)) return foo();
else if (b(e)) return bar();
else if (c(e)) return baz();
fail(e);
}
}
expect: {
function f(e){return 2==e?foo():3==e?bar():4==e?baz():void fail(e)}
function g(e){return a(e)?foo():b(e)?bar():c(e)?baz():void fail(e)}
function h(e){return a(e)?foo():b(e)?bar():c(e)?baz():void fail(e)}
function i(e){return a(e)?foo():b(e)?bar():c(e)?baz():void fail(e)}
}
}
issue_1089: {
options = {
booleans: true,
comparisons: true,
conditionals: true,
dead_code: true,
evaluate: true,
if_return: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function x() {
var f = document.getElementById("fname");
if (f.files[0].size > 12345) {
alert("alert");
f.focus();
return false;
}
}
}
expect: {
function x() {
var f = document.getElementById("fname");
if (12345 < f.files[0].size)
return alert("alert"), f.focus(), !1;
}
}
}
issue_1437: {
options = {
conditionals: false,
if_return: true,
sequences: true,
}
input: {
function x() {
if (a())
return b();
if (c())
return d();
else
e();
f();
}
}
expect: {
function x() {
if (a())
return b();
if (c())
return d();
else
e()
f();
}
}
}
issue_1437_conditionals: {
options = {
conditionals: true,
if_return: true,
sequences: true,
}
input: {
function x() {
if (a())
return b();
if (c())
return d();
else
e();
f();
}
}
expect: {
function x() {
return a() ? b() : c() ? d() : (e(), f(), void 0);
}
}
}
issue_512: {
options = {
conditionals: true,
if_return: true,
sequences: true,
side_effects: true,
}
input: {
function a() {
if (b()) {
c();
return;
}
throw e;
}
}
expect: {
function a() {
if (!b()) throw e;
c();
}
}
}
if_var_return: {
options = {
conditionals: true,
if_return: true,
join_vars: true,
sequences: true,
}
input: {
function f() {
var a;
return;
var b;
}
function g() {
var a;
if (u()) {
var b;
return v();
var c;
}
var d;
if (w()) {
var e;
return x();
var f;
} else {
var g;
y();
var h;
}
var i;
z();
var j;
}
}
expect: {
function f() {
var a, b;
}
function g() {
var a, b, c, d, e, f, g, h, i, j;
return u() ? v() : w() ? x() : (y(), z(), void 0);
}
}
}
if_if_return_return: {
options = {
conditionals: true,
if_return: true,
}
input: {
function f(a, b) {
if (a) {
if (b)
return b;
return;
}
g();
}
}
expect: {
function f(a, b) {
if (a)
return b || void 0;
g();
}
}
}
if_body_return_1: {
options = {
if_return: true,
}
input: {
var c = "PASS";
function f(a, b) {
if (a) {
if (b) throw new Error(c);
return 42;
}
return true;
}
console.log(f(0, 0));
console.log(f(0, 1));
console.log(f(1, 0));
try {
f(1, 1);
console.log("FAIL");
} catch (e) {
console.log(e.message);
}
}
expect: {
var c = "PASS";
function f(a, b) {
if (a) {
if (b) throw new Error(c);
return 42;
}
return true;
}
console.log(f(0, 0));
console.log(f(0, 1));
console.log(f(1, 0));
try {
f(1, 1);
console.log("FAIL");
} catch (e) {
console.log(e.message);
}
}
expect_stdout: [
"true",
"true",
"42",
"PASS",
]
}
if_body_return_2: {
options = {
if_return: true,
}
input: {
var c = "PASS";
function f(a, b) {
if (0 + a) {
if (b) throw new Error(c);
return 42;
}
return true;
}
console.log(f(0, 0));
console.log(f(0, 1));
console.log(f(1, 0));
try {
f(1, 1);
console.log("FAIL");
} catch (e) {
console.log(e.message);
}
}
expect: {
var c = "PASS";
function f(a, b) {
if (0 + a) {
if (b) throw new Error(c);
return 42;
}
return true;
}
console.log(f(0, 0));
console.log(f(0, 1));
console.log(f(1, 0));
try {
f(1, 1);
console.log("FAIL");
} catch (e) {
console.log(e.message);
}
}
expect_stdout: [
"true",
"true",
"42",
"PASS",
]
}
if_body_return_3: {
options = {
if_return: true,
}
input: {
var c = "PASS";
function f(a, b) {
if (1 == a) {
if (b) throw new Error(c);
return 42;
}
return true;
}
console.log(f(0, 0));
console.log(f(0, 1));
console.log(f(1, 0));
try {
f(1, 1);
console.log("FAIL");
} catch (e) {
console.log(e.message);
}
}
expect: {
var c = "PASS";
function f(a, b) {
if (1 != a) return true;
if (b) throw new Error(c);
return 42;
}
console.log(f(0, 0));
console.log(f(0, 1));
console.log(f(1, 0));
try {
f(1, 1);
console.log("FAIL");
} catch (e) {
console.log(e.message);
}
}
expect_stdout: [
"true",
"true",
"42",
"PASS",
]
}
issue_3600: {
options = {
if_return: true,
inline: true,
side_effects: true,
unused: true,
}
input: {
var c = 0;
(function() {
if ([ ][c++]); else return;
return void function() {
var b = --b, a = c = 42;
return c;
}();
})();
console.log(c);
}
expect: {
var c = 0;
(function() {
if ([][c++]) b = --b, c = 42;
var b;
})();
console.log(c);
}
expect_stdout: "1"
}
iife_if_return_simple: {
options = {
conditionals: true,
if_return: true,
inline: true,
sequences: true,
side_effects: true,
}
input: {
(function() {
if (console)
return console.log("PASS");
console.log("FAIL");
})();
}
expect: {
console ? console.log("PASS") : console.log("FAIL");
}
expect_stdout: "PASS"
}
nested_if_break: {
options = {
if_return: true,
}
input: {
for (var i = 0; i < 3; i++)
L1: if ("number" == typeof i) {
if (0 === i) break L1;
console.log(i);
}
}
expect: {
for (var i = 0; i < 3; i++)
L1: if ("number" == typeof i)
if (0 !== i) console.log(i);
}
expect_stdout: [
"1",
"2",
]
}
nested_if_continue: {
options = {
conditionals: true,
if_return: true,
join_vars: true,
loops: true,
}
input: {
function f(n) {
var i = 0;
do {
if ("number" == typeof n) {
if (0 === n) {
console.log("even", i);
continue;
}
if (1 === n) {
console.log("odd", i);
continue;
}
i++;
}
} while (0 <= (n -= 2));
}
f(37);
f(42);
}
expect: {
function f(n) {
for (var i = 0;
"number" == typeof n
&& (0 !== n
? 1 !== n
? i++
: console.log("odd", i)
: console.log("even", i)),
0 <= (n -= 2););
}
f(37);
f(42);
}
expect_stdout: [
"odd 18",
"even 21",
]
}
nested_if_return: {
options = {
conditionals: true,
if_return: true,
}
input: {
function f() {
if (A) {
if (B)
return B;
if (C)
return D;
if (E)
return F;
if (G)
return H;
if (I) {
if (J)
return K;
return;
}
if (L) {
if (M)
return;
return N;
}
}
}
}
expect: {
function f() {
if (A)
return B || (C ? D : E ? F : G ? H : I ? J ? K : void 0 : L && !M ? N : void 0);
}
}
}
issue_866_1: {
options = {
conditionals: true,
if_return: true,
sequences: false,
};
input: {
function f(a) {
if (a)
return "";
console.log(a);
}
}
expect: {
function f(a) {
if (a)
return "";
console.log(a);
}
}
}
issue_866_2: {
options = {
conditionals: true,
if_return: true,
sequences: true,
}
input: {
(function() {
if (a)
if (b)
c;
else
return d;
})();
}
expect: {
(function() {
if (a) {
if (!b)
return d;
c;
}
})();
}
}
