Files
UglifyJS/test/compress/varify.js
2021-11-23 00:31:10 +08:00

616 lines
11 KiB
JavaScript

reduce_merge_const: {
options = {
merge_vars: true,
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
const a = console;
console.log(typeof a);
var b = typeof a;
console.log(b);
}
expect: {
var b = console;
console.log(typeof b);
b = typeof b;
console.log(b);
}
expect_stdout: [
"object",
"object",
]
}
reduce_merge_let: {
options = {
merge_vars: true,
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
"use strict";
let a = console;
console.log(typeof a);
var b = typeof a;
console.log(b);
}
expect: {
"use strict";
var b = console;
console.log(typeof b);
b = typeof b;
console.log(b);
}
expect_stdout: [
"object",
"object",
]
node_version: ">=4"
}
reduce_block_const: {
options = {
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
{
const a = typeof console;
console.log(a);
}
}
expect: {
var a = typeof console;
console.log(a);
}
expect_stdout: "object"
}
reduce_block_let: {
options = {
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
"use strict";
{
let a = typeof console;
console.log(a);
}
}
expect: {
"use strict";
var a = typeof console;
console.log(a);
}
expect_stdout: "object"
node_version: ">=4"
}
hoist_props_const: {
options = {
hoist_props: true,
passes: 2,
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
{
const o = {
p: "PASS",
};
console.log(o.p);
}
}
expect: {
var o = 0, o_p = "PASS";
console.log(o_p);
}
expect_stdout: "PASS"
}
hoist_props_let: {
options = {
hoist_props: true,
passes: 2,
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
"use strict";
{
let o = {
p: "PASS",
};
console.log(o.p);
}
}
expect: {
"use strict";
var o, o_p = "PASS";
console.log(o_p);
}
expect_stdout: "PASS"
node_version: ">=4"
}
scope_adjustment_const: {
options = {
conditionals: true,
inline: true,
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
for (var k in [ 42 ])
console.log(function f() {
if (k) {
const a = 0;
}
}());
}
expect: {
for (var k in [ 42 ])
console.log(void (k && 0));
}
expect_stdout: "undefined"
}
scope_adjustment_let: {
options = {
conditionals: true,
inline: true,
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
"use strict";
for (var k in [ 42 ])
console.log(function f() {
if (k) {
let a = 0;
}
}());
}
expect: {
"use strict";
for (var k in [ 42 ])
console.log(void (k && 0));
}
expect_stdout: "undefined"
node_version: ">=4"
}
issue_4191_const: {
options = {
functions: true,
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
const a = function() {};
console.log(typeof a, a());
}
expect: {
function a() {};
console.log(typeof a, a());
}
expect_stdout: "function undefined"
}
issue_4191_let: {
options = {
functions: true,
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
"use strict";
let a = function() {};
console.log(typeof a, a());
}
expect: {
"use strict";
function a() {};
console.log(typeof a, a());
}
expect_stdout: "function undefined"
node_version: ">=4"
}
forin_const_1: {
options = {
join_vars: true,
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
const o = {
foo: 42,
bar: "PASS",
};
for (const k in o)
console.log(k, o[k]);
}
expect: {
var o = {
foo: 42,
bar: "PASS",
};
for (const k in o)
console.log(k, o[k]);
}
expect_stdout: true
node_version: ">=4"
}
forin_const_2: {
options = {
join_vars: true,
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
const o = {
p: 42,
q: "PASS",
};
for (const [ k ] in o)
console.log(k, o[k]);
}
expect: {
var o = {
p: 42,
q: "PASS",
}, k;
for ([ k ] in o)
console.log(k, o[k]);
}
expect_stdout: [
"p 42",
"q PASS",
]
node_version: ">=6"
}
forin_let_1: {
options = {
join_vars: true,
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
"use strict";
let o = {
foo: 42,
bar: "PASS",
};
for (let k in o)
console.log(k, o[k]);
}
expect: {
"use strict";
var o = {
foo: 42,
bar: "PASS",
}, k;
for (k in o)
console.log(k, o[k]);
}
expect_stdout: [
"foo 42",
"bar PASS",
]
node_version: ">=4"
}
forin_let_2: {
options = {
join_vars: true,
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
let o = {
p: 42,
q: "PASS",
};
for (let [ k ] in o)
console.log(k, o[k]);
}
expect: {
var o = {
p: 42,
q: "PASS",
}, k;
for ([ k ] in o)
console.log(k, o[k]);
}
expect_stdout: [
"p 42",
"q PASS",
]
node_version: ">=6"
}
loop_scope_1: {
options = {
toplevel: true,
varify: true,
}
input: {
"use strict";
var o = { foo: 1, bar: 2 };
for (let i in o) {
console.log(i);
}
for (const j in o)
setTimeout(() => console.log(j), 0);
for (let k in o)
setTimeout(function() {
console.log(k);
}, 0);
}
expect: {
"use strict";
var o = { foo: 1, bar: 2 };
for (var i in o)
console.log(i);
for (const j in o)
setTimeout(() => console.log(j), 0);
for (let k in o)
setTimeout(function() {
console.log(k);
}, 0);
}
expect_stdout: [
"foo",
"bar",
"foo",
"bar",
"foo",
"bar",
]
node_version: ">=4"
}
loop_scope_2: {
options = {
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
"use strict";
var a = [ "foo", "bar" ];
for (var i = 0; i < a.length; i++) {
const x = a[i];
console.log(x);
let y = a[i];
setTimeout(() => console.log(y), 0);
const z = a[i];
setTimeout(function() {
console.log(z);
}, 0);
}
}
expect: {
"use strict";
var a = [ "foo", "bar" ];
for (var i = 0; i < a.length; i++) {
var x = a[i];
console.log(x);
let y = a[i];
setTimeout(() => console.log(y), 0);
const z = a[i];
setTimeout(function() {
console.log(z);
}, 0);
}
}
expect_stdout: [
"foo",
"bar",
"foo",
"foo",
"bar",
"bar",
]
node_version: ">=4"
}
issue_4290_1_const: {
options = {
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
const a = 0;
var a;
}
expect: {
const a = 0;
var a;
}
expect_stdout: true
}
issue_4290_1_let: {
options = {
reduce_vars: true,
toplevel: true,
varify: true,
}
input: {
"use strict";
let a = 0;
var a;
}
expect: {
"use strict";
let a = 0;
var a;
}
expect_stdout: true
node_version: ">=4"
}
drop_forin_let: {
options = {
loops: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
"use strict";
for (let a in console.log("PASS"));
}
expect: {
"use strict";
console.log("PASS");
}
expect_stdout: "PASS"
node_version: ">=4"
}
default_init: {
options = {
join_vars: true,
reduce_vars: true,
unused: true,
varify: true,
}
input: {
A = "PASS";
(function() {
"use strict";
let a;
a = A;
console.log(a);
})();
}
expect: {
A = "PASS";
(function() {
"use strict";
var a = A;
console.log(a);
})();
}
expect_stdout: "PASS"
node_version: ">=4"
}
issue_4933_1: {
options = {
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
console.log(f());
function f() {
var a;
for (console in a = [ f ]) {
const b = a;
}
}
}
expect: {
console.log(function f() {
var a;
for (console in a = [ f ]) {
const b = a;
}
}());
}
expect_stdout: "undefined"
}
issue_4933_2: {
options = {
passes: 2,
reduce_vars: true,
toplevel: true,
unused: true,
varify: true,
}
input: {
console.log(f());
function f() {
var a;
for (console in a = [ f ]) {
const b = a;
}
}
}
expect: {
console.log(function f() {
for (console in [ f ]);
}());
}
expect_stdout: "undefined"
}
issue_4954: {
options = {
functions: true,
reduce_vars: true,
unused: true,
varify: true,
}
input: {
"use strict";
(function() {
{
let a = console;
console.log(typeof a);
}
{
let a = function() {};
a && console.log(typeof a);
}
})();
}
expect: {
"use strict";
(function() {
var a = console;
console.log(typeof a);
{
let a = function() {};
a && console.log(typeof a);
}
})();
}
expect_stdout: [
"object",
"function",
]
node_version: ">=4"
}