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support let (#4227)

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This commit is contained in:
Alex Lam S.L
2020-10-19 01:32:39 +01:00
committed by GitHub
parent 6c7226c10e
commit 96bf7fceab
10 changed files with 1186 additions and 152 deletions
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236
test/compress/varify.js Normal file
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@@ -0,0 +1,236 @@
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_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_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"
}