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reduce overlap of sequences & side_effects (#5344)

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This commit is contained in:
Alex Lam S.L
2022-02-07 16:29:04 +00:00
committed by GitHub
parent 327e94a759
commit b6c72c84d4
9 changed files with 280 additions and 17 deletions
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145
test/compress/sequences.js
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@@ -289,8 +289,34 @@ iife: {
typeof function g() {}();
}
expect: {
x = 42, function a() {}(), function b() {}(), function c() {}(),
function d() {}(), function e() {}(), function f() {}(), function g() {}();
x = 42,
function a() {}(),
!function b() {}(),
~function c() {}(),
+function d() {}(),
-function e() {}(),
void function f() {}(),
typeof function g() {}();
}
}
iife_drop_side_effect_free: {
options = {
sequences: true,
side_effects: true,
}
input: {
x = 42;
(function a() {})();
!function b() {}();
~function c() {}();
+function d() {}();
-function e() {}();
void function f() {}();
typeof function g() {}();
}
expect: {
x = 42;
}
}
@@ -1045,11 +1071,102 @@ call: {
b.c = function() {
console.log(this === b ? "bar" : "baz");
},
a,
b(),
a,
b.c(),
(a, b.c)(),
a,
b["c"](),
(a, b["c"])(),
a,
function() {
console.log(this === a);
}(),
a,
new b(),
a,
new b.c(),
a,
new b.c(),
a,
new b["c"](),
a,
new b["c"](),
a,
new function() {
console.log(this === a);
}(),
console.log((a, typeof b.c)),
console.log((a, typeof b["c"]));
}
expect_stdout: [
"foo",
"bar",
"baz",
"bar",
"baz",
"true",
"foo",
"baz",
"baz",
"baz",
"baz",
"false",
"function",
"function",
]
}
call_drop_side_effect_free: {
options = {
sequences: true,
side_effects: true,
}
input: {
var a = function() {
return this;
}();
function b() {
console.log("foo");
}
b.c = function() {
console.log(this === b ? "bar" : "baz");
};
(a, b)();
(a, b).c();
(a, b.c)();
(a, b)["c"]();
(a, b["c"])();
(a, function() {
console.log(this === a);
})();
new (a, b)();
new (a, b).c();
new (a, b.c)();
new (a, b)["c"]();
new (a, b["c"])();
new (a, function() {
console.log(this === a);
})();
console.log(typeof (a, b).c);
console.log(typeof (a, b)["c"]);
}
expect: {
var a = function() {
return this;
}();
function b() {
console.log("foo");
}
b.c = function() {
console.log(this === b ? "bar" : "baz");
},
b(),
b.c(),
(0, b.c)(),
b["c"](),
(0, b["c"])(),
function() {
console.log(this === a);
}(),
@@ -1061,8 +1178,8 @@ call: {
new function() {
console.log(this === a);
}(),
console.log((a, typeof b.c)),
console.log((a, typeof b["c"]));
console.log(typeof b.c),
console.log(typeof b["c"]);
}
expect_stdout: [
"foo",
@@ -1097,6 +1214,26 @@ missing_link: {
expect: {
var a = 100;
a,
a++ + (0, 1),
console.log(a);
}
}
missing_link_drop_side_effect_free: {
options = {
conditionals: true,
evaluate: true,
sequences: true,
side_effects: true,
}
input: {
var a = 100;
a;
a++ + (0 ? 2 : 1);
console.log(a);
}
expect: {
var a = 100;
a++,
console.log(a);
}