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enhance booleans (#5022)

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closes #5021
This commit is contained in:
Alex Lam S.L
2021-06-22 17:35:50 +01:00
committed by GitHub
parent e9c902b044
commit 7c5b6f349e
7 changed files with 639 additions and 30 deletions
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2
test/benchmark.js
View File

@@ -16,7 +16,7 @@ var urls = [
"https://code.angularjs.org/1.7.8/angular.js",
"https://unpkg.com/mathjs@6.2.3/dist/math.js",
"https://unpkg.com/react@15.3.2/dist/react.js",
"https://cdnjs.cloudflare.com/ajax/libs/d3/5.12.0/d3.js",
"https://cdnjs.cloudflare.com/ajax/libs/d3/6.7.0/d3.js",
"https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.js",
"https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.js",
"https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.12.2/ember.prod.js",

377
test/compress/booleans.js
View File

@@ -29,6 +29,383 @@ iife_boolean_context: {
]
}
de_morgan_1a: {
options = {
booleans: true,
}
input: {
function f(a) {
return a || a;
}
console.log(f(null), f(42));
}
expect: {
function f(a) {
return a;
}
console.log(f(null), f(42));
}
expect_stdout: "null 42"
}
de_morgan_1b: {
options = {
booleans: true,
}
input: {
function f(a) {
return a && a;
}
console.log(f(null), f(42));
}
expect: {
function f(a) {
return a;
}
console.log(f(null), f(42));
}
expect_stdout: "null 42"
}
de_morgan_1c: {
options = {
booleans: true,
}
input: {
console.log(delete (NaN && NaN));
}
expect: {
console.log(delete (0, NaN));
}
expect_stdout: "true"
}
de_morgan_2a: {
options = {
booleans: true,
conditionals: true,
}
input: {
function f(a, b) {
return a || (a || b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a || b;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"undefined {}",
"42 42",
]
}
de_morgan_2b: {
options = {
booleans: true,
evaluate: true,
}
input: {
function f(a, b) {
return a || (a && b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"null null",
"42 42",
]
}
de_morgan_2c: {
options = {
booleans: true,
evaluate: true,
}
input: {
function f(a, b) {
return a && (a || b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"null null",
"42 42",
]
}
de_morgan_2d: {
options = {
booleans: true,
evaluate: true,
side_effects: true,
}
input: {
function f(a, b) {
return a && (a && b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a && b;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"null null",
"undefined {}",
]
}
de_morgan_3a: {
options = {
booleans: true,
conditionals: true,
}
input: {
function f(a, b, c) {
return a || ((a || b) || c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a || b || c;
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"undefined {} true true",
"42 42 42 42",
]
}
de_morgan_3b: {
options = {
booleans: true,
evaluate: true,
side_effects: true,
}
input: {
function f(a, b, c) {
return a || ((a || b) && c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a || b && c;
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"false false undefined {}",
"42 42 42 42",
]
}
de_morgan_3c: {
options = {
booleans: true,
evaluate: true,
side_effects: true,
}
input: {
function f(a, b, c) {
return a || ((a && b) || c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a || c;
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"undefined {} undefined {}",
"42 42 42 42",
]
}
de_morgan_3d: {
options = {
booleans: true,
evaluate: true,
}
input: {
function f(a, b, c) {
return a || ((a && b) && c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a;
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"null null null null",
"42 42 42 42",
]
}
de_morgan_3e: {
options = {
booleans: true,
evaluate: true,
}
input: {
function f(a, b, c) {
return a && ((a || b) || c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a;
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"null null null null",
"42 42 42 42",
]
}
de_morgan_3f: {
options = {
booleans: true,
evaluate: true,
side_effects: true,
}
input: {
function f(a, b, c) {
return a && ((a || b) && c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a && c;
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"null null null null",
"undefined {} undefined {}",
]
}
de_morgan_3g: {
options = {
booleans: true,
evaluate: true,
side_effects: true,
}
input: {
function f(a, b, c) {
return a && ((a && b) || c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a && (b || c);
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"null null null null",
"undefined {} true true",
]
}
de_morgan_3h: {
options = {
booleans: true,
conditionals: true,
}
input: {
function f(a, b, c) {
return a && ((a && b) && c);
}
console.log(f(null, false), f(null, false, {}), f(null, true), f(null, true, {}));
console.log(f(42, false), f(42, false, {}), f(42, true), f(42, true, {}));
}
expect: {
function f(a, b, c) {
return a && b && c;
}
console.log(f(null, !1), f(null, !1, {}), f(null, !0), f(null, !0, {}));
console.log(f(42, !1), f(42, !1, {}), f(42, !0), f(42, !0, {}));
}
expect_stdout: [
"null null null null",
"false false undefined {}",
]
}
conditional_chain: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
}
input: {
function f(a, b) {
return a ? a : b ? b : 42;
}
console.log(f("PASS", "FAIL"));
}
expect: {
function f(a, b) {
return a || b || 42;
}
console.log(f("PASS", "FAIL"));
}
expect_stdout: "PASS"
}
issue_3465_1: {
options = {
booleans: true,

2
test/compress/collapse_vars.js
View File

@@ -8864,7 +8864,7 @@ issue_4732_1: {
expect: {
var a = 0;
(function(b) {
(b = a++) && (b && console.log("PASS"));
(b = a++) && console.log("PASS");
})(a++);
}
expect_stdout: "PASS"

27
test/compress/conditionals.js
View File

@@ -822,6 +822,33 @@ cond_13: {
}
}
cond_14: {
options = {
booleans: true,
conditionals: true,
side_effects: true,
}
input: {
function f(a) {
if (a)
if (a)
console.log("PASS");
else
console.log("FAIL");
}
f(null);
f(42);
}
expect: {
function f(a) {
a && console.log("PASS");
}
f(null);
f(42);
}
expect_stdout: "PASS"
}
ternary_boolean_consequent: {
options = {
booleans: true,

2
test/compress/join_vars.js
View File

@@ -1015,7 +1015,7 @@ issue_3856: {
console.log(function() {
(function() {
var a, b;
if (a) return !!a;
if (a) return a, 1;
for (a = 0; !console;);
return 0;
})();

152
test/compress/nullish.js
View File

@@ -110,6 +110,158 @@ conditional_assignment_4: {
node_version: ">=14"
}
de_morgan_1: {
options = {
booleans: true,
}
input: {
function f(a) {
return a ?? a;
}
console.log(f(null), f(42));
}
expect: {
function f(a) {
return a;
}
console.log(f(null), f(42));
}
expect_stdout: "null 42"
node_version: ">=14"
}
de_morgan_2a: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
}
input: {
function f(a, b) {
return a || (a ?? b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a || (a ?? b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"undefined {}",
"42 42",
]
node_version: ">=14"
}
de_morgan_2b: {
options = {
booleans: true,
evaluate: true,
}
input: {
function f(a, b) {
return a && (a ?? b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"null null",
"42 42",
]
node_version: ">=14"
}
de_morgan_2c: {
options = {
booleans: true,
evaluate: true,
side_effects: true,
}
input: {
function f(a, b) {
return a ?? (a || b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a ?? b;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"undefined {}",
"42 42",
]
node_version: ">=14"
}
de_morgan_2d: {
options = {
booleans: true,
evaluate: true,
}
input: {
function f(a, b) {
return a ?? (a && b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"null null",
"42 42",
]
node_version: ">=14"
}
de_morgan_2e: {
options = {
booleans: true,
conditionals: true,
}
input: {
function f(a, b) {
return a ?? (a ?? b);
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect: {
function f(a, b) {
return a ?? b;
}
console.log(f(null), f(null, {}));
console.log(f(42), f(42, {}));
}
expect_stdout: [
"undefined {}",
"42 42",
]
node_version: ">=14"
}
issue_4679: {
options = {
comparisons: true,