op_equals_left_local_var: {
options = {
assignments: true,
evaluate: true,
}
input: {
var x;
x = x + 3;
x = x - 3;
x = x / 3;
x = x * 3;
x = x >> 3;
x = x << 3;
x = x >>> 3;
x = x | 3;
x = x ^ 3;
x = x % 3;
x = x & 3;
x = x + g();
x = x - g();
x = x / g();
x = x * g();
x = x >> g();
x = x << g();
x = x >>> g();
x = x | g();
x = x ^ g();
x = x % g();
x = x & g();
}
expect: {
var x;
x += 3;
x -= 3;
x /= 3;
x *= 3;
x >>= 3;
x <<= 3;
x >>>= 3;
x |= 3;
x ^= 3;
x %= 3;
x &= 3;
x += g();
x -= g();
x /= g();
x *= g();
x >>= g();
x <<= g();
x >>>= g();
x |= g();
x ^= g();
x %= g();
x &= g();
}
}
op_equals_right_local_var: {
options = {
assignments: true,
evaluate: true,
}
input: {
var x;
x = (x -= 2) ^ x;
x = 3 + x;
x = 3 - x;
x = 3 / x;
x = 3 * x;
x = 3 >> x;
x = 3 << x;
x = 3 >>> x;
x = 3 | x;
x = 3 ^ x;
x = 3 % x;
x = 3 & x;
x = g() + x;
x = g() - x;
x = g() / x;
x = g() * x;
x = g() >> x;
x = g() << x;
x = g() >>> x;
x = g() | x;
x = g() ^ x;
x = g() % x;
x = g() & x;
}
expect: {
var x;
x = (x -= 2) ^ x;
x = 3 + x;
x = 3 - x;
x = 3 / x;
x *= 3;
x = 3 >> x;
x = 3 << x;
x = 3 >>> x;
x |= 3;
x ^= 3;
x = 3 % x;
x &= 3;
x = g() + x;
x = g() - x;
x = g() / x;
x = g() * x;
x = g() >> x;
x = g() << x;
x = g() >>> x;
x = g() | x;
x = g() ^ x;
x = g() % x;
x = g() & x;
}
}
op_equals_left_global_var: {
options = {
assignments: true,
evaluate: true,
}
input: {
x = x + 3;
x = x - 3;
x = x / 3;
x = x * 3;
x = x >> 3;
x = x << 3;
x = x >>> 3;
x = x | 3;
x = x ^ 3;
x = x % 3;
x = x & 3;
x = x + g();
x = x - g();
x = x / g();
x = x * g();
x = x >> g();
x = x << g();
x = x >>> g();
x = x | g();
x = x ^ g();
x = x % g();
x = x & g();
}
expect: {
x += 3;
x -= 3;
x /= 3;
x *= 3;
x >>= 3;
x <<= 3;
x >>>= 3;
x |= 3;
x ^= 3;
x %= 3;
x &= 3;
x += g();
x -= g();
x /= g();
x *= g();
x >>= g();
x <<= g();
x >>>= g();
x |= g();
x ^= g();
x %= g();
x &= g();
}
}
op_equals_right_global_var: {
options = {
assignments: true,
evaluate: true,
}
input: {
x = (x -= 2) ^ x;
x = 3 + x;
x = 3 - x;
x = 3 / x;
x = 3 * x;
x = 3 >> x;
x = 3 << x;
x = 3 >>> x;
x = 3 | x;
x = 3 ^ x;
x = 3 % x;
x = 3 & x;
x = g() + x;
x = g() - x;
x = g() / x;
x = g() * x;
x = g() >> x;
x = g() << x;
x = g() >>> x;
x = g() | x;
x = g() ^ x;
x = g() % x;
x = g() & x;
}
expect: {
x = (x -= 2) ^ x;
x = 3 + x;
x = 3 - x;
x = 3 / x;
x *= 3;
x = 3 >> x;
x = 3 << x;
x = 3 >>> x;
x |= 3;
x ^= 3;
x = 3 % x;
x &= 3;
x = g() + x;
x = g() - x;
x = g() / x;
x = g() * x;
x = g() >> x;
x = g() << x;
x = g() >>> x;
x = g() | x;
x = g() ^ x;
x = g() % x;
x = g() & x;
}
}
increment_decrement_1: {
options = {
assignments: true,
reduce_vars: true,
}
input: {
console.log(function(a) {
a += 1;
a -= 1;
return a;
}(42));
}
expect: {
console.log(function(a){
++a;
--a;
return a;
}(42));
}
expect_stdout: "42"
}
increment_decrement_2: {
options = {
assignments: true,
passes: 2,
reduce_vars: true,
}
input: {
console.log(function(a) {
a = a + 1;
a = a - 1;
a += 1;
a -= 1;
return a;
}(42));
}
expect: {
console.log(function(a){
++a;
--a;
++a;
--a;
return a;
}(42));
}
expect_stdout: "42"
}
issue_3375_1: {
options = {
assignments: true,
reduce_vars: true,
}
input: {
function p(o) {
console.log(typeof o, o);
}
p(function(b) {
var a = b += 1;
--b;
return a;
}("object"));
}
expect: {
function p(o) {
console.log(typeof o, o);
}
p(function(b) {
var a = b += 1;
--b;
return a;
}("object"));
}
expect_stdout: "string object1"
}
issue_3375_2: {
options = {
assignments: true,
reduce_vars: true,
}
input: {
function p(o) {
console.log(typeof o, o);
}
p(function(b) {
var a = b -= 1;
--b;
return a;
}("object"));
}
expect: {
function p(o) {
console.log(typeof o, o);
}
p(function(b) {
var a = --b;
--b;
return a;
}("object"));
}
expect_stdout: "number NaN"
}
issue_3427: {
options = {
assignments: true,
sequences: true,
side_effects: true,
unused: true,
}
input: {
(function() {
var a;
a || (a = {});
})();
}
expect: {}
}
issue_3429_1: {
options = {
assignments: true,
side_effects: true,
unused: true,
}
input: {
var a = "PASS";
(function(b) {
b && (b = a = "FAIL");
})();
console.log(a);
}
expect: {
var a = "PASS";
(function(b) {
b = b && (a = "FAIL");
})();
console.log(a);
}
expect_stdout: "PASS"
}
issue_3429_2: {
options = {
assignments: true,
side_effects: true,
unused: true,
}
input: {
var a;
(function(b) {
b || (b = a = "FAIL");
})(42);
console.log(a);
}
expect: {
var a;
(function(b) {
b = b || (a = "FAIL");
})(42);
console.log(a);
}
expect_stdout: "undefined"
}
issue_3949_1: {
options = {
assignments: true,
evaluate: true,
reduce_vars: true,
}
input: {
var a = 42;
function f() {
var b = a;
b = b >> 2;
return 100 + b;
}
console.log(f());
}
expect: {
var a = 42;
function f() {
var b = a;
b >>= 2;
return 100 + b;
}
console.log(f());
}
expect_stdout: "110"
}
issue_3949_2: {
options = {
assignments: true,
evaluate: true,
reduce_vars: true,
}
input: {
var a = 42;
function f() {
var b = a;
b = 5 & b;
return 100 + b;
}
console.log(f());
}
expect: {
var a = 42;
function f() {
var b = a;
b &= 5;
return 100 + b;
}
console.log(f());
}
expect_stdout: "100"
}
issue_4521: {
options = {
assignments: true,
dead_code: true,
}
input: {
var a = (a = 42 | a) ? console.log(a) : 0;
}
expect: {
var a = (a |= 42) ? console.log(a) : 0;
}
expect_stdout: "42"
}
logical_assignments: {
input: {
var a = 42, b = null, c;
a &&= "foo";
b ||= "bar";
c ??= "baz";
console.log(a, b, c);
}
expect_exact: 'var a=42,b=null,c;a&&="foo";b||="bar";c??="baz";console.log(a,b,c);'
expect_stdout: "foo bar baz"
node_version: ">=15"
}
logical_collapse_vars: {
options = {
collapse_vars: true,
}
input: {
var a = "FAIL", b = false;
a = "PASS";
b ??= a;
console.log(a);
}
expect: {
var a = "FAIL", b = false;
a = "PASS";
b ??= a;
console.log(a);
}
expect_stdout: "PASS"
node_version: ">=15"
}
logical_reduce_vars: {
options = {
evaluate: true,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
var a = "PASS", b = 42;
b ??= a = "FAIL";
console.log(a);
}
expect: {
var a = "PASS", b = 42;
b ??= a = "FAIL";
console.log(a);
}
expect_stdout: "PASS"
node_version: ">=15"
}
logical_side_effects: {
options = {
side_effects: true,
toplevel: true,
unused: true,
}
input: {
var a = "PASS", b = 42;
b ??= a = "FAIL";
console.log(a);
}
expect: {
var a = "PASS", b = 42;
b ??= a = "FAIL";
console.log(a);
}
expect_stdout: "PASS"
node_version: ">=15"
}
issue_4815_1: {
options = {
evaluate: true,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
var a = "PASS";
42..p &&= a = "FAIL";
console.log(a);
}
expect: {
var a = "PASS";
42..p &&= a = "FAIL";
console.log(a);
}
expect_stdout: "PASS"
node_version: ">=15"
}
issue_4815_2: {
options = {
pure_getters: "strict",
side_effects: true,
}
input: {
var a = "PASS";
42..p &&= a = "FAIL";
console.log(a);
}
expect: {
var a = "PASS";
42..p &&= a = "FAIL";
console.log(a);
}
expect_stdout: "PASS"
node_version: ">=15"
}
issue_4819: {
options = {
comparisons: true,
}
input: {
console.log(void 0 === ([].p &&= 42));
}
expect: {
console.log(void 0 === ([].p &&= 42));
}
expect_stdout: "true"
node_version: ">=15"
}
issue_4827_1: {
options = {
collapse_vars: true,
toplevel: true,
}
input: {
A = "FAIL";
var a = A, b = "PASS", c;
c &&= b = a, console.log(b);
}
expect: {
A = "FAIL";
var a = A, b = "PASS", c;
c &&= b = a, console.log(b);
}
expect_stdout: "PASS"
node_version: ">=15"
}
issue_4827_2: {
options = {
collapse_vars: true,
inline: true,
reduce_vars: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
var a = 0, b = "PASS";
function f(c) {
a++,
c &&= b = a;
}
f();
console.log(b);
}
expect: {
var a = 0, b = "PASS";
a++,
c &&= b = a;
var c;
console.log(b);
}
expect_stdout: "PASS"
node_version: ">=15"
}
issue_4827_3: {
options = {
merge_vars: true,
toplevel: true,
}
input: {
var a = 0, b, c;
a++;
c &&= b = a;
console.log(b);
}
expect: {
var a = 0, b, c;
a++;
c &&= b = a;
console.log(b);
}
expect_stdout: "undefined"
node_version: ">=15"
}
issue_4876: {
options = {
pure_getters: "strict",
reduce_vars: true,
side_effects: true,
toplevel: true,
}
input: {
try {
var a = null;
var b = a &&= 42;
b.p;
} catch (e) {
console.log("PASS");
}
}
expect: {
try {
var a = null;
var b = a &&= 42;
b.p;
} catch (e) {
console.log("PASS");
}
}
expect_stdout: "PASS"
node_version: ">=15"
}
issue_4924_1: {
options = {
collapse_vars: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
var a, b;
console.log("PASS");
a = function() {};
b = function() {}(b ||= a);
}
expect: {
var b;
console.log("PASS");
b = void (b ||= function() {});
}
expect_stdout: "PASS"
node_version: ">=15"
}
issue_4924_2: {
options = {
collapse_vars: true,
dead_code: true,
passes: 2,
sequences: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
var a, b;
console.log("PASS");
a = function() {};
b = function() {}(b ||= a);
}
expect: {
console.log("PASS");
}
expect_stdout: "PASS"
node_version: ">=15"
}
