ifs_1: {
options = {
conditionals: true,
}
input: {
if (foo) bar();
if (!foo); else bar();
if (foo); else bar();
if (foo); else;
}
expect: {
foo&&bar();
foo&&bar();
foo||bar();
foo;
}
}
ifs_2: {
options = {
conditionals: true,
}
input: {
if (foo) {
x();
} else if (bar) {
y();
} else if (baz) {
z();
}
if (foo) {
x();
} else if (bar) {
y();
} else if (baz) {
z();
} else {
t();
}
}
expect: {
foo ? x() : bar ? y() : baz && z();
(foo ? x : bar ? y : baz ? z : t)();
}
}
ifs_3_should_warn: {
options = {
booleans: true,
conditionals: true,
dead_code: true,
evaluate: true,
side_effects: true,
}
input: {
var x, y;
// 1
if (x && !(x + "1") && y) {
var qq;
foo();
} else {
bar();
}
// 2
if (x || !!(x + "1") || y) {
foo();
} else {
var jj;
bar();
}
}
expect: {
var x, y;
// 1
var qq; bar();
// 2
foo(); var jj;
}
expect_warnings: [
"WARN: + in boolean context always true [test/compress/conditionals.js:3,18]",
"WARN: Boolean && always false [test/compress/conditionals.js:3,12]",
"WARN: Condition left of && always false [test/compress/conditionals.js:3,12]",
"WARN: Condition always false [test/compress/conditionals.js:3,12]",
"WARN: Dropping unreachable code [test/compress/conditionals.js:3,34]",
"WARN: + in boolean context always true [test/compress/conditionals.js:10,19]",
"WARN: Boolean || always true [test/compress/conditionals.js:10,12]",
"WARN: Condition left of || always true [test/compress/conditionals.js:10,12]",
"WARN: Condition always true [test/compress/conditionals.js:10,12]",
"WARN: Dropping unreachable code [test/compress/conditionals.js:12,15]",
"WARN: Dropping side-effect-free statement [test/compress/conditionals.js:3,12]",
"WARN: Dropping side-effect-free statement [test/compress/conditionals.js:10,12]",
]
}
ifs_4: {
options = {
conditionals: true,
}
input: {
if (foo && bar) {
x(foo)[10].bar.baz = something();
} else
x(foo)[10].bar.baz = something_else();
}
expect: {
foo && bar
? x(foo)[10].bar.baz = something()
: x(foo)[10].bar.baz = something_else();
}
}
ifs_5: {
options = {
comparisons: true,
conditionals: true,
if_return: true,
}
input: {
function f() {
if (foo) return;
bar();
baz();
}
function g() {
if (foo) return;
if (bar) return;
if (baz) return;
if (baa) return;
a();
b();
}
}
expect: {
function f() {
if (!foo) {
bar();
baz();
}
}
function g() {
if (!(foo || bar || baz || baa)) {
a();
b();
}
}
}
}
ifs_6: {
options = {
comparisons: true,
conditionals: true,
}
input: {
var x, y;
if (!foo && !bar && !baz && !boo) {
x = 10;
} else {
x = 20;
}
if (y) {
x[foo] = 10;
} else {
x[foo] = 20;
}
if (foo) {
x[bar] = 10;
} else {
x[bar] = 20;
}
}
expect: {
var x, y;
x = foo || bar || baz || boo ? 20 : 10;
x[foo] = y ? 10 : 20;
foo ? x[bar] = 10 : x[bar] = 20;
}
}
ifs_7: {
options = {
conditionals: true,
}
input: {
if (A); else;
if (A) while (B); else;
if (A); else while (C);
if (A) while (B); else while (C);
}
expect: {
A;
if (A) while (B);
if (!A) while (C);
if (A) while (B); else while (C);
}
}
cond_1: {
options = {
conditionals: true,
}
input: {
function foo(do_something, some_condition) {
if (some_condition) {
do_something(x);
} else {
do_something(y);
}
if (some_condition) {
side_effects(x);
} else {
side_effects(y);
}
}
}
expect: {
function foo(do_something, some_condition) {
do_something(some_condition ? x : y);
some_condition ? side_effects(x) : side_effects(y);
}
}
}
cond_2: {
options = {
conditionals: true,
}
input: {
function foo(x, FooBar, some_condition) {
if (some_condition) {
x = new FooBar(1);
} else {
x = new FooBar(2);
}
}
}
expect: {
function foo(x, FooBar, some_condition) {
x = new FooBar(some_condition ? 1 : 2);
}
}
}
cond_3: {
options = {
conditionals: true,
}
input: {
var FooBar;
if (some_condition()) {
new FooBar(1);
} else {
FooBar(2);
}
}
expect: {
var FooBar;
some_condition() ? new FooBar(1) : FooBar(2);
}
}
cond_4: {
options = {
conditionals: true,
}
input: {
var do_something;
if (some_condition()) {
do_something();
} else {
do_something();
}
if (some_condition()) {
side_effects();
} else {
side_effects();
}
}
expect: {
var do_something;
some_condition(), do_something();
some_condition(), side_effects();
}
}
cond_5: {
options = {
conditionals: true,
}
input: {
if (some_condition()) {
if (some_other_condition()) {
do_something();
} else {
alternate();
}
} else {
alternate();
}
if (some_condition()) {
if (some_other_condition()) {
do_something();
}
}
}
expect: {
(some_condition() && some_other_condition() ? do_something : alternate)();
some_condition() && some_other_condition() && do_something();
}
}
cond_6: {
options = {
booleans: true,
conditionals: true,
}
input: {
x ? a : b;
x ? a : a;
x ? y ? a : b : c;
x ? y ? a : a : b;
x ? y ? a : b : b;
x ? y ? a : b : a;
x ? y ? a : a : a;
x ? a : y ? b : c;
x ? a : y ? a : b;
x ? a : y ? b : b;
x ? a : y ? b : a;
x ? a : y ? a : a;
}
expect: {
x ? a : b;
x, a;
x ? y ? a : b : c;
x ? (y, a) : b;
x && y ? a : b;
!x || y ? a : b;
x && y, a;
x ? a : y ? b : c;
x || y ? a : b;
x ? a : (y, b);
!x && y ? b : a;
!x && y, a;
}
}
cond_7: {
options = {
conditionals: true,
evaluate: true,
side_effects: true,
}
input: {
var x, y, z, a, b;
// compress these
if (y) {
x = 1+1;
} else {
x = 2;
}
if (y) {
x = 1+1;
} else if (z) {
x = 2;
} else {
x = 3-1;
}
x = y ? 'foo' : 'fo'+'o';
x = y ? 'foo' : y ? 'foo' : 'fo'+'o';
// Compress conditions that have side effects
if (condition()) {
x = 10+10;
} else {
x = 20;
}
if (z) {
x = 'fuji';
} else if (condition()) {
x = 'fu'+'ji';
} else {
x = 'fuji';
}
x = condition() ? 'foobar' : 'foo'+'bar';
// don't compress these
x = y ? a : b;
x = y ? 'foo' : 'fo';
}
expect: {
var x, y, z, a, b;
x = 2;
x = 2;
x = 'foo';
x = 'foo';
x = (condition(), 20);
x = (z || condition(), 'fuji');
x = (condition(), 'foobar');
x = y ? a : b;
x = y ? 'foo' : 'fo';
}
}
cond_7_1: {
options = {
conditionals: true,
evaluate: true,
}
input: {
var x;
// access to global should be assumed to have side effects
if (y) {
x = 1+1;
} else {
x = 2;
}
}
expect: {
var x;
x = (y, 2);
}
}
cond_8: {
options = {
booleans: false,
conditionals: true,
evaluate: true,
}
input: {
var a;
// compress these
a = condition ? true : false;
a = !condition ? true : false;
a = condition() ? true : false;
a = condition ? !0 : !1;
a = !condition ? !null : !2;
a = condition() ? !0 : !-3.5;
if (condition) {
a = true;
} else {
a = false;
}
if (condition) {
a = !0;
} else {
a = !1;
}
a = condition ? false : true;
a = !condition ? false : true;
a = condition() ? false : true;
a = condition ? !3 : !0;
a = !condition ? !2 : !0;
a = condition() ? !1 : !0;
if (condition) {
a = false;
} else {
a = true;
}
if (condition) {
a = !1;
} else {
a = !0;
}
// don't compress these
a = condition ? 1 : false;
a = !condition ? true : 0;
a = condition ? 1 : 0;
}
expect: {
var a;
a = !!condition;
a = !condition;
a = !!condition();
a = !!condition;
a = !condition;
a = !!condition();
a = !!condition;
a = !!condition;
a = !condition;
a = !!condition;
a = !condition();
a = !condition;
a = !!condition;
a = !condition();
a = !condition;
a = !condition;
a = !!condition && 1;
a = !condition || 0;
a = condition ? 1 : 0;
}
}
cond_8b: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
}
input: {
var a;
// compress these
a = condition ? true : false;
a = !condition ? true : false;
a = condition() ? true : false;
a = condition ? !0 : !1;
a = !condition ? !null : !2;
a = condition() ? !0 : !-3.5;
if (condition) {
a = true;
} else {
a = false;
}
if (condition) {
a = !0;
} else {
a = !1;
}
a = condition ? false : true;
a = !condition ? false : true;
a = condition() ? false : true;
a = condition ? !3 : !0;
a = !condition ? !2 : !0;
a = condition() ? !1 : !0;
if (condition) {
a = false;
} else {
a = true;
}
if (condition) {
a = !1;
} else {
a = !0;
}
a = condition ? 1 : false;
a = !condition ? true : 0;
a = condition ? 1 : 0;
}
expect: {
var a;
a = !!condition;
a = !condition;
a = !!condition();
a = !!condition;
a = !condition;
a = !!condition();
a = !!condition;
a = !!condition;
a = !condition;
a = !!condition;
a = !condition();
a = !condition;
a = !!condition;
a = !condition();
a = !condition;
a = !condition;
a = !!condition && 1;
a = !condition || 0;
a = condition ? 1 : 0;
}
}
cond_8c: {
options = {
booleans: false,
conditionals: true,
evaluate: false,
}
input: {
var a;
// compress these
a = condition ? true : false;
a = !condition ? true : false;
a = condition() ? true : false;
a = condition ? !0 : !1;
a = !condition ? !null : !2;
a = condition() ? !0 : !-3.5;
if (condition) {
a = true;
} else {
a = false;
}
if (condition) {
a = !0;
} else {
a = !1;
}
a = condition ? false : true;
a = !condition ? false : true;
a = condition() ? false : true;
a = condition ? !3 : !0;
a = !condition ? !2 : !0;
a = condition() ? !1 : !0;
if (condition) {
a = false;
} else {
a = true;
}
if (condition) {
a = !1;
} else {
a = !0;
}
a = condition ? 1 : false;
a = !condition ? true : 0;
a = condition ? 1 : 0;
}
expect: {
var a;
a = !!condition;
a = !condition;
a = !!condition();
a = !!condition;
a = !condition;
a = !!condition() || !-3.5;
a = !!condition;
a = !!condition;
a = !condition;
a = !!condition;
a = !condition();
a = !condition;
a = !!condition;
a = !condition();
a = !condition;
a = !condition;
a = !!condition && 1;
a = !condition || 0;
a = condition ? 1 : 0;
}
}
cond_9: {
options = {
conditionals: true,
}
input: {
function f(x, y) {
g() ? x(1) : x(2);
x ? (y || x)() : (y || x)();
x ? y(a, b) : y(d, b, c);
x ? y(a, b, c) : y(a, b, c);
x ? y(a, b, c) : y(a, b, f);
x ? y(a, b, c) : y(a, e, c);
x ? y(a, b, c) : y(a, e, f);
x ? y(a, b, c) : y(d, b, c);
x ? y(a, b, c) : y(d, b, f);
x ? y(a, b, c) : y(d, e, c);
x ? y(a, b, c) : y(d, e, f);
}
}
expect: {
function f(x, y) {
g() ? x(1) : x(2);
x, (y || x)();
x ? y(a, b) : y(d, b, c);
x, y(a, b, c);
y(a, b, x ? c : f);
y(a, x ? b : e, c);
x ? y(a, b, c) : y(a, e, f);
y(x ? a : d, b, c);
x ? y(a, b, c) : y(d, b, f);
x ? y(a, b, c) : y(d, e, c);
x ? y(a, b, c) : y(d, e, f);
}
}
}
cond_10: {
options = {
conditionals: true,
if_return: true,
}
input: {
function f(a) {
if (1 == a) return "foo";
if (2 == a) return "foo";
if (3 == a) return "foo";
if (4 == a) return 42;
if (5 == a) return "foo";
if (6 == a) return "foo";
return "bar";
}
console.log(f(1), f(2), f(3), f(4), f(5), f(6), f(7));
}
expect: {
function f(a) {
return 1 == a || 2 == a || 3 == a ? "foo" : 4 == a ? 42 : 5 == a || 6 == a ? "foo" : "bar";
}
console.log(f(1), f(2), f(3), f(4), f(5), f(6), f(7));
}
expect_stdout: "foo foo foo 42 foo foo bar"
}
cond_11: {
options = {
conditionals: true,
}
input: {
var o = {
p: "foo",
q: function() {
return this.p;
}
};
function f() {
return "bar";
}
function g(a) {
return a ? f() : o.q();
}
console.log(g(0), g(1));
}
expect: {
var o = {
p: "foo",
q: function() {
return this.p;
}
};
function f() {
return "bar";
}
function g(a) {
return a ? f() : o.q();
}
console.log(g(0), g(1));
}
expect_stdout: "foo bar"
}
cond_12: {
options = {
conditionals: true,
}
input: {
x ? y && a : a;
x ? y || a : a;
x ? a : y && a;
x ? a : y || a;
}
expect: {
(!x || y) && a;
x && y || a;
(x || y) && a;
!x && y || a;
}
}
cond_13: {
options = {
conditionals: true,
}
input: {
x ? y(a) : z(a);
x ? y.f(a) : z.f(a);
x ? y.f(a) : z.g(a);
x ? y.f()(a) : z.g()(a);
x ? y.f.u(a) : z.g.u(a);
x ? y.f().u(a) : z.g().u(a);
}
expect: {
(x ? y : z)(a);
(x ? y : z).f(a);
x ? y.f(a) : z.g(a);
(x ? y.f() : z.g())(a);
(x ? y.f : z.g).u(a);
(x ? y.f() : z.g()).u(a);
}
}
cond_14: {
options = {
booleans: true,
conditionals: true,
side_effects: true,
}
input: {
function f(a) {
if (a)
if (a)
console.log("PASS");
else
console.log("FAIL");
}
f(null);
f(42);
}
expect: {
function f(a) {
a && console.log("PASS");
}
f(null);
f(42);
}
expect_stdout: "PASS"
}
ternary_boolean_consequent: {
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: true,
loops: true,
properties: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f1() { return a == b ? true : x; }
function f2() { return a == b ? false : x; }
function f3() { return a < b ? !0 : x; }
function f4() { return a < b ? !1 : x; }
function f5() { return c ? !0 : x; }
function f6() { return c ? false : x; }
function f7() { return !c ? true : x; }
function f8() { return !c ? !1 : x; }
}
expect: {
function f1() { return a == b || x; }
function f2() { return a != b && x; }
function f3() { return a < b || x; }
function f4() { return !(a < b) && x; }
function f5() { return !!c || x; }
function f6() { return !c && x; }
function f7() { return !c || x; }
function f8() { return !!c && x; }
}
}
ternary_boolean_alternative: {
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: true,
loops: true,
properties: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
function f1() { return a == b ? x : true; }
function f2() { return a == b ? x : false; }
function f3() { return a < b ? x : !0; }
function f4() { return a < b ? x : !1; }
function f5() { return c ? x : true; }
function f6() { return c ? x : !1; }
function f7() { return !c ? x : !0; }
function f8() { return !c ? x : false; }
}
expect: {
function f1() { return a != b || x; }
function f2() { return a == b && x; }
function f3() { return !(a < b) || x; }
function f4() { return a < b && x; }
function f5() { return !c || x; }
function f6() { return !!c && x; }
function f7() { return !!c || x; }
function f8() { return !c && x; }
}
}
trivial_boolean_ternary_expressions : {
options = {
booleans: true,
conditionals: true,
evaluate: true,
side_effects: true,
}
input: {
f('foo' in m ? true : false);
f('foo' in m ? false : true);
f(g ? true : false);
f(foo() ? true : false);
f("bar" ? true : false);
f(5 ? true : false);
f(5.7 ? true : false);
f(x - y ? true : false);
f(x == y ? true : false);
f(x === y ? !0 : !1);
f(x < y ? !0 : false);
f(x <= y ? true : false);
f(x > y ? true : !1);
f(x >= y ? !0 : !1);
f(g ? false : true);
f(foo() ? false : true);
f("bar" ? false : true);
f(5 ? false : true);
f(5.7 ? false : true);
f(x - y ? false : true);
f(x == y ? !1 : !0);
f(x === y ? false : true);
f(x < y ? false : true);
f(x <= y ? false : !0);
f(x > y ? !1 : true);
f(x >= y ? !1 : !0);
}
expect: {
f('foo' in m);
f(!('foo' in m));
f(!!g);
f(!!foo());
f(!0);
f(!0);
f(!0);
f(!!(x - y));
f(x == y);
f(x === y);
f(x < y);
f(x <= y);
f(x > y);
f(x >= y);
f(!g);
f(!foo());
f(!1);
f(!1);
f(!1);
f(!(x - y));
f(x != y);
f(x !== y);
f(!(x < y));
f(!(x <= y));
f(!(x > y));
f(!(x >= y));
}
}
issue_1154: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
side_effects: true,
}
input: {
function f1(x) { return x ? -1 : -1; }
function f2(x) { return x ? +2 : +2; }
function f3(x) { return x ? ~3 : ~3; }
function f4(x) { return x ? !4 : !4; }
function f5(x) { return x ? void 5 : void 5; }
function f6(x) { return x ? typeof 6 : typeof 6; }
function g1() { return g() ? -1 : -1; }
function g2() { return g() ? +2 : +2; }
function g3() { return g() ? ~3 : ~3; }
function g4() { return g() ? !4 : !4; }
function g5() { return g() ? void 5 : void 5; }
function g6() { return g() ? typeof 6 : typeof 6; }
}
expect: {
function f1(x) { return -1; }
function f2(x) { return 2; }
function f3(x) { return -4; }
function f4(x) { return !1; }
function f5(x) { return; }
function f6(x) { return "number"; }
function g1() { return g(), -1; }
function g2() { return g(), 2; }
function g3() { return g(), -4; }
function g4() { return g(), !1; }
function g5() { return void g(); }
function g6() { return g(), "number"; }
}
}
no_evaluate: {
options = {
conditionals: true,
evaluate: false,
side_effects: true,
}
input: {
function f(b) {
a = b ? !0 : !0;
a = b ? ~1 : ~1;
a = b ? -2 : -2;
a = b ? +3 : +3;
}
}
expect: {
function f(b) {
a = !0;
a = ~1;
a = -2;
a = +3;
}
}
}
equality_conditionals_false: {
options = {
conditionals: false,
sequences: true,
}
input: {
function f(a, b, c) {
console.log(
a == (b ? a : a),
a == (b ? a : c),
a != (b ? a : a),
a != (b ? a : c),
a === (b ? a : a),
a === (b ? a : c),
a !== (b ? a : a),
a !== (b ? a : c)
);
}
f(0, 0, 0);
f(0, true, 0);
f(1, 2, 3);
f(1, null, 3);
f(NaN);
f(NaN, "foo");
}
expect: {
function f(a, b, c) {
console.log(
a == (b ? a : a),
a == (b ? a : c),
a != (b ? a : a),
a != (b ? a : c),
a === (b ? a : a),
a === (b ? a : c),
a !== (b ? a : a),
a !== (b ? a : c)
);
}
f(0, 0, 0),
f(0, true, 0),
f(1, 2, 3),
f(1, null, 3),
f(NaN),
f(NaN, "foo");
}
expect_stdout: true
}
equality_conditionals_true: {
options = {
conditionals: true,
sequences: true,
}
input: {
function f(a, b, c) {
console.log(
a == (b ? a : a),
a == (b ? a : c),
a != (b ? a : a),
a != (b ? a : c),
a === (b ? a : a),
a === (b ? a : c),
a !== (b ? a : a),
a !== (b ? a : c)
);
}
f(0, 0, 0);
f(0, true, 0);
f(1, 2, 3);
f(1, null, 3);
f(NaN);
f(NaN, "foo");
}
expect: {
function f(a, b, c) {
console.log(
(b, a == a),
a == (b ? a : c),
(b, a != a),
a != (b ? a : c),
(b, a === a),
a === (b ? a : c),
(b, a !== a),
a !== (b ? a : c)
);
}
f(0, 0, 0),
f(0, true, 0),
f(1, 2, 3),
f(1, null, 3),
f(NaN),
f(NaN, "foo");
}
expect_stdout: true
}
issue_1645_1: {
options = {
conditionals: true,
}
input: {
var a = 100, b = 10;
(b = a) ? a++ + (b += a) ? b += a : b += a : b ^= a;
console.log(a, b);
}
expect: {
var a = 100, b = 10;
(b = a) ? (a++ + (b += a), b += a) : b ^= a;
console.log(a,b);
}
expect_stdout: true
}
issue_1645_2: {
options = {
conditionals: true,
}
input: {
var a = 0;
function f() {
return a++;
}
f() ? a += 2 : a += 4;
console.log(a);
}
expect: {
var a = 0;
function f(){
return a++;
}
f() ? a += 2 : a += 4;
console.log(a);
}
expect_stdout: true
}
condition_matches_consequent: {
options = {
conditionals: true,
}
input: {
function foo(x, y) {
return x ? x : y;
}
function bar() {
return g ? g : h;
}
var g = 4;
var h = 5;
console.log(foo(3, null), foo(0, 7), foo(true, false), bar());
}
expect: {
function foo(x, y) {
return x || y;
}
function bar() {
return g || h;
}
var g = 4;
var h = 5;
console.log(foo(3, null), foo(0, 7), foo(true, false), bar());
}
expect_stdout: "3 7 true 4"
}
condition_matches_alternative: {
options = {
conditionals: true,
}
input: {
function foo(x, y) {
return x.p ? y[0] : x.p;
}
function bar() {
return g ? h : g;
}
var g = 4;
var h = 5;
console.log(foo({ p: 3 }, [ null ]), foo({ p: 0 }, [ 7 ]), foo({ p: true } , [ false ]), bar());
}
expect: {
function foo(x, y) {
return x.p && y[0];
}
function bar() {
return g && h;
}
var g = 4;
var h = 5;
console.log(foo({ p: 3 }, [ null ]), foo({ p: 0 }, [ 7 ]), foo({ p: true } , [ false ]), bar());
}
expect_stdout: "null 0 false 5"
}
delete_conditional_1: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
side_effects: true,
}
input: {
console.log(delete (1 ? undefined : x));
console.log(delete (1 ? void 0 : x));
console.log(delete (1 ? Infinity : x));
console.log(delete (1 ? 1 / 0 : x));
console.log(delete (1 ? NaN : x));
console.log(delete (1 ? 0 / 0 : x));
}
expect: {
console.log(!0);
console.log(!0);
console.log(!0);
console.log(!0);
console.log(!0);
console.log(!0);
}
expect_stdout: true
}
delete_conditional_2: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
keep_infinity: true,
side_effects: true,
}
input: {
console.log(delete (0 ? x : undefined));
console.log(delete (0 ? x : void 0));
console.log(delete (0 ? x : Infinity));
console.log(delete (0 ? x : 1 / 0));
console.log(delete (0 ? x : NaN));
console.log(delete (0 ? x : 0 / 0));
}
expect: {
console.log(!0);
console.log(!0);
console.log(!0);
console.log(!0);
console.log(!0);
console.log(!0);
}
expect_stdout: true
}
issue_2535_1: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
passes: 2,
side_effects: true,
}
input: {
if (true || x()) y();
if (true && x()) y();
if (x() || true) y();
if (x() && true) y();
if (false || x()) y();
if (false && x()) y();
if (x() || false) y();
if (x() && false) y();
}
expect: {
y();
x() && y();
x(), y();
x() && y();
x() && y();
x() && y();
x();
}
}
issue_2535_2: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
side_effects: true,
}
input: {
function x() {}
function y() {
return "foo";
}
console.log((x() || true) || y());
console.log((y() || true) || x());
console.log((x() || true) && y());
console.log((y() || true) && x());
console.log((x() && true) || y());
console.log((y() && true) || x());
console.log((x() && true) && y());
console.log((y() && true) && x());
console.log((x() || false) || y());
console.log((y() || false) || x());
console.log((x() || false) && y());
console.log((y() || false) && x());
console.log((x() && false) || y());
console.log((y() && false) || x());
console.log((x() && false) && y());
console.log((y() && false) && x());
}
expect: {
function x() {}
function y() {
return "foo";
}
console.log(x() || !0);
console.log(y() || !0);
console.log((x(), y()));
console.log((y(), x()));
console.log(!!x() || y());
console.log(!!y() || x());
console.log(x() && y());
console.log(y() && x());
console.log(x() || y());
console.log(y() || x());
console.log(!!x() && y());
console.log(!!y() && x());
console.log((x(), y()));
console.log((y(), x()));
console.log(x() && !1);
console.log(y() && !1);
}
expect_stdout: [
"true",
"foo",
"foo",
"undefined",
"foo",
"true",
"undefined",
"undefined",
"foo",
"foo",
"false",
"undefined",
"foo",
"undefined",
"undefined",
"false",
]
}
issue_2560: {
options = {
conditionals: true,
inline: true,
reduce_funcs: true,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
function log(x) {
console.log(x);
}
function foo() {
return log;
}
function bar() {
if (x !== (x = foo())) {
x(1);
} else {
x(2);
}
}
var x = function() {
console.log("init");
};
bar();
bar();
}
expect: {
function log(x) {
console.log(x);
}
function bar() {
x !== (x = log) ? x(1) : x(2);
}
var x = function() {
console.log("init");
};
bar();
bar();
}
expect_stdout: [
"1",
"2",
]
}
hoist_decl: {
options = {
conditionals: true,
join_vars: true,
sequences: true,
}
input: {
if (x()) {
var a;
y();
} else {
z();
var b;
}
}
expect: {
var a, b;
(x() ? y : z)();
}
}
to_and_or: {
options = {
conditionals: true,
}
input: {
var values = [
0,
null,
true,
"foo",
false,
-1 / 0,
void 0,
];
values.forEach(function(x) {
values.forEach(function(y) {
values.forEach(function(z) {
console.log(x ? y || z : z);
});
});
});
}
expect: {
var values = [
0,
null,
true,
"foo",
false,
-1 / 0,
void 0,
];
values.forEach(function(x) {
values.forEach(function(y) {
values.forEach(function(z) {
console.log(x && y || z);
});
});
});
}
expect_stdout: true
}
cond_seq_assign_1: {
options = {
conditionals: true,
sequences: true,
}
input: {
function f(a) {
var t;
if (a) {
t = "foo";
t = "bar";
} else {
console.log(t);
t = 42;
}
console.log(t);
}
f(f);
f();
}
expect: {
function f(a) {
var t;
t = a ? (t = "foo", "bar") : (console.log(t), 42),
console.log(t);
}
f(f),
f();
}
expect_stdout: [
"bar",
"undefined",
"42",
]
}
cond_seq_assign_2: {
options = {
conditionals: true,
sequences: true,
}
input: {
function f(a) {
var t;
if (a) {
t = "foo";
a = "bar";
} else {
console.log(t);
t = 42;
}
console.log(t);
}
f(f);
f();
}
expect: {
function f(a) {
var t;
a ? (t = "foo", a = "bar") : (console.log(t), t = 42),
console.log(t);
}
f(f),
f();
}
expect_stdout: [
"foo",
"undefined",
"42",
]
}
cond_seq_assign_3: {
options = {
assignments: true,
conditionals: true,
}
input: {
var c = 0;
if (this)
c = 1 + c, c = c + 1;
else
c = 1 + c, c = c + 1;
console.log(c);
}
expect: {
var c = 0;
this, c = 1 + c, c += 1;
console.log(c);
}
expect_stdout: "2"
}
issue_3271: {
options = {
conditionals: true,
}
input: {
function f(a) {
var i = 0, b = [];
if (a) {
b[i++] = 4,
b[i++] = 1;
} else {
b[i++] = 3,
b[i++] = 2,
b[i++] = 1;
}
return b;
}
console.log(f(0).pop(), f(1).pop());
}
expect: {
function f(a) {
var i = 0, b = [];
a ? b[i++] = 4 : (b[i++] = 3, b[i++] = 2),
b[i++] = 1;
return b;
}
console.log(f(0).pop(), f(1).pop());
}
expect_stdout: "1 1"
}
iife_condition: {
options = {
conditionals: true,
side_effects: true,
}
input: {
if (function() {
return console;
}())
console.log("PASS");
}
expect: {
!function() {
return console;
}() || console.log("PASS");
}
expect_stdout: "PASS"
}
angularjs_chain: {
options = {
conditionals: true,
passes: 2,
side_effects: true,
}
input: {
function nonComputedMember(left, right, context, create) {
var lhs = left();
if (create && create !== 1) {
if (lhs && lhs[right] == null) {
lhs[right] = {};
}
}
var value = lhs != null ? lhs[right] : undefined;
if (context) {
return { context: lhs, name: right, value: value };
} else {
return value;
}
}
}
expect: {
function nonComputedMember(left, right, context, create) {
var lhs = left();
create && 1 !== create && lhs && null == lhs[right] && (lhs[right] = {});
var value = null != lhs ? lhs[right] : void 0;
return context ? {
context: lhs,
name: right,
value: value
} : value;
}
}
}
issue_3576: {
options = {
conditionals: true,
evaluate: true,
pure_getters: "strict",
reduce_vars: true,
}
input: {
var c = "FAIL";
(function(a) {
(a = -1) ? (a && (a.a = 0)) : (a && (a.a = 0));
a && a[c = "PASS"]++;
})();
console.log(c);
}
expect: {
var c = "FAIL";
(function(a) {
a = -1, a, a.a = 0;
a, a[c = "PASS"]++;
})();
console.log(c);
}
expect_stdout: "PASS"
}
issue_3668: {
options = {
conditionals: true,
if_return: true,
}
input: {
function f() {
try {
var undefined = typeof f;
if (!f) return undefined;
return;
} catch (e) {
return "FAIL";
}
}
console.log(f());
}
expect: {
function f() {
try {
var undefined = typeof f;
return f ? void 0 : undefined;
} catch (e) {
return "FAIL";
}
}
console.log(f());
}
expect_stdout: "undefined"
}
conditional_assignments_1: {
options = {
conditionals: true,
sequences: true,
}
input: {
function f(a, b, c, d) {
a = b;
if (c) a = d;
return a;
}
function g(a, b, c, d) {
a = b;
if (c); else a = d;
return a;
}
console.log(f(0, "FAIL", 1, "PASS"), g(0, "PASS", 1, "FAIL"));
}
expect: {
function f(a, b, c, d) {
return a = c ? d : b, a;
}
function g(a, b, c, d) {
return a = c ? b : d, a;
}
console.log(f(0, "FAIL", 1, "PASS"), g(0, "PASS", 1, "FAIL"));
}
expect_stdout: "PASS PASS"
}
conditional_assignments_2: {
options = {
conditionals: true,
sequences: true,
}
input: {
function f1(b, c, d) {
a = b;
if (c) a = d;
return a;
}
function f2(a, c, d) {
a = b;
if (c) a = d;
return a;
}
function f3(a, b, d) {
a = b;
if (c) a = d;
return a;
}
function f4(a, b, c) {
a = b;
if (c) a = d;
return a;
}
}
expect: {
function f1(b, c, d) {
return a = c ? d : b, a;
}
function f2(a, c, d) {
return a = b, c && (a = d), a;
}
function f3(a, b, d) {
return a = b, c && (a = d), a;
}
function f4(a, b, c) {
return a = b, c && (a = d), a;
}
}
}
conditional_assignments_3: {
options = {
conditionals: true,
sequences: true,
}
input: {
console.log(function(a, b) {
a = "PASS";
if (b) a = a;
return a;
}(0, 1));
}
expect: {
console.log(function(a, b) {
return a = "PASS", b && (a = a), a;
}(0, 1));
}
expect_stdout: "PASS"
}
issue_3808_1: {
options = {
conditionals: true,
side_effects: true,
}
input: {
var a;
a = "PASS", [] + "" && (a = "FAIL");
console.log(a);
}
expect: {
var a;
a = [] + "" ? "FAIL" : "PASS";
console.log(a);
}
expect_stdout: "PASS"
}
issue_3808_2: {
options = {
conditionals: true,
side_effects: true,
}
input: {
var a;
console.log((a = "PASS", [] + "" && (a = "FAIL")), a);
}
expect: {
var a;
console.log((a = "PASS", [] + "" && (a = "FAIL")), a);
}
expect_stdout: " PASS"
}
object_super: {
options = {
conditionals: true,
}
input: {
Object.setPrototypeOf({
f(a) {
a ? this.g("FAIL") : super.g("FAIL");
},
g(b) {
console.log(b);
},
}, {
g() {
console.log("PASS");
},
}).f();
}
expect: {
Object.setPrototypeOf({
f(a) {
a ? this.g("FAIL") : super.g("FAIL");
},
g(b) {
console.log(b);
},
}, {
g() {
console.log("PASS");
},
}).f();
}
expect_stdout: "PASS"
node_version: ">=4"
}
