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enhance conditionals (#5542)

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This commit is contained in:
Alex Lam S.L
2022-07-07 05:17:23 +01:00
committed by GitHub
parent c8d98f4787
commit d89f0965aa
5 changed files with 554 additions and 62 deletions
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82
test/compress/conditionals.js
View File

@@ -196,6 +196,88 @@ ifs_7: {
}
}
merge_tail_1: {
options = {
conditionals: true,
}
input: {
function f(a) {
var b = "foo";
if (a) {
while (console.log("bar"));
console.log(b);
} else {
while (console.log("baz"));
console.log(b);
}
}
f();
f(42);
}
expect: {
function f(a) {
var b = "foo";
if (a)
while (console.log("bar"));
else
while (console.log("baz"));
console.log(b);
}
f();
f(42);
}
expect_stdout: [
"baz",
"foo",
"bar",
"foo",
]
}
merge_tail_2: {
options = {
conditionals: true,
}
input: {
function f(a) {
var b = "foo";
if (a) {
while (console.log("bar"));
console.log(b);
} else {
c = "baz";
while (console.log(c));
while (console.log("bar"));
console.log(b);
var c;
}
}
f();
f(42);
}
expect: {
function f(a) {
var b = "foo";
if (!a) {
c = "baz";
while (console.log(c));
var c;
}
while (console.log("bar"));
console.log(b);
}
f();
f(42);
}
expect_stdout: [
"baz",
"bar",
"foo",
"bar",
"foo",
]
}
cond_1: {
options = {
conditionals: true,

105
test/compress/const.js
View File

@@ -142,6 +142,80 @@ if_dead_branch: {
expect_stdout: "undefined"
}
retain_tail_1: {
options = {
conditionals: true,
}
input: {
function f(a) {
var b = "foo";
if (a) {
const b = "bar";
while (console.log("baz"));
console.log(b);
} else {
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect: {
function f(a) {
var b = "foo";
if (a) {
const b = "bar";
while (console.log("baz"));
console.log(b);
} else {
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect_stdout: true
}
retain_tail_2: {
options = {
conditionals: true,
}
input: {
function f(a) {
var b = "foo";
if (a) {
while (console.log("bar"));
console.log(b);
} else {
const b = "baz";
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect: {
function f(a) {
var b = "foo";
if (a) {
while (console.log("bar"));
console.log(b);
} else {
const b = "baz";
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect_stdout: true
}
merge_vars_1: {
options = {
merge_vars: true,
@@ -579,6 +653,37 @@ dead_block_after_return: {
expect_stdout: true
}
if_return_3: {
options = {
if_return: true,
}
input: {
var a = "PASS";
function f(b) {
if (console) {
const b = a;
return b;
} else
while (console.log("FAIL 1"));
return b;
}
console.log(f("FAIL 2"));
}
expect: {
var a = "PASS";
function f(b) {
if (console) {
const b = a;
return b;
} else
while (console.log("FAIL 1"));
return b;
}
console.log(f("FAIL 2"));
}
expect_stdout: true
}
do_if_continue_1: {
options = {
if_return: true,

90
test/compress/let.js
View File

@@ -190,6 +190,96 @@ if_dead_branch: {
node_version: ">=4"
}
retain_tail_1: {
options = {
conditionals: true,
}
input: {
"use strict";
function f(a) {
var b = "foo";
if (a) {
let b = "bar";
while (console.log("baz"));
console.log(b);
} else {
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect: {
"use strict";
function f(a) {
var b = "foo";
if (a) {
let b = "bar";
while (console.log("baz"));
console.log(b);
} else {
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect_stdout: [
"moo",
"foo",
"baz",
"bar",
]
node_version: ">=4"
}
retain_tail_2: {
options = {
conditionals: true,
}
input: {
"use strict";
function f(a) {
var b = "foo";
if (a) {
while (console.log("bar"));
console.log(b);
} else {
let b = "baz";
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect: {
"use strict";
function f(a) {
var b = "foo";
if (a) {
while (console.log("bar"));
console.log(b);
} else {
let b = "baz";
while (console.log("moo"));
console.log(b);
}
}
f();
f(42);
}
expect_stdout: [
"moo",
"baz",
"bar",
"foo",
]
node_version: ">=4"
}
merge_vars_1: {
options = {
merge_vars: true,