148047fbbf
- assign statement does not count towards variable usage by default - only works with assignments on the same scope level as declaration - can be disabled with `unused` set to "keep_assign" - `toplevel` to drop unused top-level variables and/or functions - `top_retain` to whitelist top-level exceptions closes #1450
559 lines
10 KiB
JavaScript
559 lines
10 KiB
JavaScript
unused_funarg_1: {
|
|
options = { unused: true, keep_fargs: false };
|
|
input: {
|
|
function f(a, b, c, d, e) {
|
|
return a + b;
|
|
}
|
|
}
|
|
expect: {
|
|
function f(a, b) {
|
|
return a + b;
|
|
}
|
|
}
|
|
}
|
|
|
|
unused_funarg_2: {
|
|
options = { unused: true, keep_fargs: false };
|
|
input: {
|
|
function f(a, b, c, d, e) {
|
|
return a + c;
|
|
}
|
|
}
|
|
expect: {
|
|
function f(a, b, c) {
|
|
return a + c;
|
|
}
|
|
}
|
|
}
|
|
|
|
unused_nested_function: {
|
|
options = { unused: true };
|
|
input: {
|
|
function f(x, y) {
|
|
function g() {
|
|
something();
|
|
}
|
|
return x + y;
|
|
}
|
|
};
|
|
expect: {
|
|
function f(x, y) {
|
|
return x + y;
|
|
}
|
|
}
|
|
}
|
|
|
|
unused_circular_references_1: {
|
|
options = { unused: true };
|
|
input: {
|
|
function f(x, y) {
|
|
// circular reference
|
|
function g() {
|
|
return h();
|
|
}
|
|
function h() {
|
|
return g();
|
|
}
|
|
return x + y;
|
|
}
|
|
};
|
|
expect: {
|
|
function f(x, y) {
|
|
return x + y;
|
|
}
|
|
}
|
|
}
|
|
|
|
unused_circular_references_2: {
|
|
options = { unused: true };
|
|
input: {
|
|
function f(x, y) {
|
|
var foo = 1, bar = baz, baz = foo + bar, qwe = moo();
|
|
return x + y;
|
|
}
|
|
};
|
|
expect: {
|
|
function f(x, y) {
|
|
moo(); // keeps side effect
|
|
return x + y;
|
|
}
|
|
}
|
|
}
|
|
|
|
unused_circular_references_3: {
|
|
options = { unused: true };
|
|
input: {
|
|
function f(x, y) {
|
|
var g = function() { return h() };
|
|
var h = function() { return g() };
|
|
return x + y;
|
|
}
|
|
};
|
|
expect: {
|
|
function f(x, y) {
|
|
return x + y;
|
|
}
|
|
}
|
|
}
|
|
|
|
unused_keep_setter_arg: {
|
|
options = { unused: true };
|
|
input: {
|
|
var x = {
|
|
_foo: null,
|
|
set foo(val) {
|
|
},
|
|
get foo() {
|
|
return this._foo;
|
|
}
|
|
}
|
|
}
|
|
expect: {
|
|
var x = {
|
|
_foo: null,
|
|
set foo(val) {
|
|
},
|
|
get foo() {
|
|
return this._foo;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
unused_var_in_catch: {
|
|
options = { unused: true };
|
|
input: {
|
|
function foo() {
|
|
try {
|
|
foo();
|
|
} catch(ex) {
|
|
var x = 10;
|
|
}
|
|
}
|
|
}
|
|
expect: {
|
|
function foo() {
|
|
try {
|
|
foo();
|
|
} catch(ex) {}
|
|
}
|
|
}
|
|
}
|
|
|
|
used_var_in_catch: {
|
|
options = { unused: true };
|
|
input: {
|
|
function foo() {
|
|
try {
|
|
foo();
|
|
} catch(ex) {
|
|
var x = 10;
|
|
}
|
|
return x;
|
|
}
|
|
}
|
|
expect: {
|
|
function foo() {
|
|
try {
|
|
foo();
|
|
} catch(ex) {
|
|
var x = 10;
|
|
}
|
|
return x;
|
|
}
|
|
}
|
|
}
|
|
|
|
keep_fnames: {
|
|
options = { unused: true, keep_fnames: true, unsafe: true };
|
|
input: {
|
|
function foo() {
|
|
return function bar(baz) {};
|
|
}
|
|
}
|
|
expect: {
|
|
function foo() {
|
|
return function bar(baz) {};
|
|
}
|
|
}
|
|
}
|
|
|
|
drop_assign: {
|
|
options = { unused: true };
|
|
input: {
|
|
function f1() {
|
|
var a;
|
|
a = 1;
|
|
}
|
|
function f2() {
|
|
var a = 1;
|
|
a = 2;
|
|
}
|
|
function f3(a) {
|
|
a = 1;
|
|
}
|
|
function f4() {
|
|
var a;
|
|
return a = 1;
|
|
}
|
|
function f5() {
|
|
var a;
|
|
return function() {
|
|
a = 1;
|
|
}
|
|
}
|
|
}
|
|
expect: {
|
|
function f1() {
|
|
1;
|
|
}
|
|
function f2() {
|
|
2;
|
|
}
|
|
function f3(a) {
|
|
1;
|
|
}
|
|
function f4() {
|
|
return 1;
|
|
}
|
|
function f5() {
|
|
var a;
|
|
return function() {
|
|
a = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
keep_assign: {
|
|
options = { unused: "keep_assign" };
|
|
input: {
|
|
function f1() {
|
|
var a;
|
|
a = 1;
|
|
}
|
|
function f2() {
|
|
var a = 1;
|
|
a = 2;
|
|
}
|
|
function f3(a) {
|
|
a = 1;
|
|
}
|
|
function f4() {
|
|
var a;
|
|
return a = 1;
|
|
}
|
|
function f5() {
|
|
var a;
|
|
return function() {
|
|
a = 1;
|
|
}
|
|
}
|
|
}
|
|
expect: {
|
|
function f1() {
|
|
var a;
|
|
a = 1;
|
|
}
|
|
function f2() {
|
|
var a = 1;
|
|
a = 2;
|
|
}
|
|
function f3(a) {
|
|
a = 1;
|
|
}
|
|
function f4() {
|
|
var a;
|
|
return a = 1;
|
|
}
|
|
function f5() {
|
|
var a;
|
|
return function() {
|
|
a = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
drop_toplevel_funcs: {
|
|
options = { toplevel: "funcs", unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, b = 1, c = g;
|
|
a = 2;
|
|
function g() {}
|
|
console.log(b = 3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_vars: {
|
|
options = { toplevel: "vars", unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_vars_fargs: {
|
|
options = { keep_fargs: false, toplevel: "vars", unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var c = g;
|
|
function f() {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_all: {
|
|
options = { toplevel: true, unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
2;
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_retain: {
|
|
options = { top_retain: "f,a,o", unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_retain_array: {
|
|
options = { top_retain: [ "f", "a", "o" ], unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_retain_regex: {
|
|
options = { top_retain: /^[fao]$/, unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_all_retain: {
|
|
options = { toplevel: true, top_retain: "f,a,o", unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_funcs_retain: {
|
|
options = { toplevel: "funcs", top_retain: "f,a,o", unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
console.log(b = 3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_vars_retain: {
|
|
options = { toplevel: "vars", top_retain: "f,a,o", unused: true };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(3);
|
|
}
|
|
}
|
|
|
|
drop_toplevel_keep_assign: {
|
|
options = { toplevel: true, unused: "keep_assign" };
|
|
input: {
|
|
var a, b = 1, c = g;
|
|
function f(d) {
|
|
return function() {
|
|
c = 2;
|
|
}
|
|
}
|
|
a = 2;
|
|
function g() {}
|
|
function h() {}
|
|
console.log(b = 3);
|
|
}
|
|
expect: {
|
|
var a, b = 1;
|
|
a = 2;
|
|
console.log(b = 3);
|
|
}
|
|
}
|