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enhance merge_vars (#5349)

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This commit is contained in:
Alex Lam S.L
2022-02-12 12:41:02 +00:00
committed by GitHub
parent 33c163f648
commit 6d0bb58d68
2 changed files with 190 additions and 20 deletions
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152
test/compress/merge_vars.js
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@@ -169,6 +169,158 @@ conditional_branch: {
expect_stdout: "PASS"
}
conditional_chain_1: {
options = {
merge_vars: true,
}
input: {
function f(a, b) {
var c, d;
if (a && (c = a))
console.log(c);
else
b || (d = b) ? console.log("foo") : console.log(d);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect: {
function f(a, b) {
var a, a;
if (a && (a = a))
console.log(a);
else
b || (a = b) ? console.log("foo") : console.log(a);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect_stdout: [
"null",
"foo",
"42",
"42",
]
}
conditional_chain_2: {
options = {
merge_vars: true,
}
input: {
function f(a, b) {
var c, d;
if (a && (c = a))
console.log(c);
else
b || (d = b) ? console.log(c) : console.log(d);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect: {
function f(a, b) {
var c, a;
if (a && (c = a))
console.log(c);
else
b || (a = b) ? console.log(c) : console.log(a);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect_stdout: [
"null",
"undefined",
"42",
"42",
]
}
conditional_chain_3: {
options = {
merge_vars: true,
}
input: {
function f(a, b) {
var c, d;
if (a && (c = a) || b || (d = b))
console.log(c);
else
console.log(d);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect: {
function f(a, b) {
var c, a;
if (a && (c = a) || b || (a = b))
console.log(c);
else
console.log(a);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect_stdout: [
"null",
"undefined",
"42",
"42",
]
}
conditional_chain_4: {
options = {
merge_vars: true,
}
input: {
function f(a, b) {
var c, d;
if (a && b ? c = a : d = b)
console.log(c);
else
console.log(d);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect: {
function f(a, b) {
var c, d;
if (a && b ? c = a : d = b)
console.log(c);
else
console.log(d);
}
f("", null);
f("", true);
f(42, null);
f(42, true);
}
expect_stdout: [
"null",
"undefined",
"null",
"42",
]
}
if_branch: {
options = {
merge_vars: true,