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improve boolean compression (#2548)

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fixes #2535
This commit is contained in:
Alex Lam S.L
2017-12-01 22:41:35 +08:00
committed by GitHub
parent 7ac6fdcc99
commit 9a6b11f8e6
3 changed files with 186 additions and 24 deletions
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73
test/compress/conditionals.js
View File

@@ -1016,7 +1016,7 @@ delete_conditional_2: {
expect_stdout: true
}
issue_2535: {
issue_2535_1: {
options = {
booleans: true,
conditionals: true,
@@ -1044,3 +1044,74 @@ issue_2535: {
(x(), 0) && y();
}
}
issue_2535_2: {
options = {
booleans: true,
conditionals: true,
evaluate: true,
side_effects: true,
}
input: {
function x() {}
function y() {
return "foo";
}
console.log((x() || true) || y());
console.log((y() || true) || x());
console.log((x() || true) && y());
console.log((y() || true) && x());
console.log((x() && true) || y());
console.log((y() && true) || x());
console.log((x() && true) && y());
console.log((y() && true) && x());
console.log((x() || false) || y());
console.log((y() || false) || x());
console.log((x() || false) && y());
console.log((y() || false) && x());
console.log((x() && false) || y());
console.log((y() && false) || x());
console.log((x() && false) && y());
console.log((y() && false) && x());
}
expect: {
function x() {}
function y() {
return "foo";
}
console.log(x() || !0);
console.log(y() || !0);
console.log((x(), y()));
console.log((y(), x()));
console.log(!!x() || y());
console.log(!!y() || x());
console.log(x() && y());
console.log(y() && x());
console.log(x() || y());
console.log(y() || x());
console.log(!!x() && y());
console.log(!!y() && x());
console.log((x(), y()));
console.log((y(), x()));
console.log(x() && !1);
console.log(y() && !1);
}
expect_stdout: [
"true",
"foo",
"foo",
"undefined",
"foo",
"true",
"undefined",
"undefined",
"foo",
"foo",
"false",
"undefined",
"foo",
"undefined",
"undefined",
"false",
]
}

67
test/compress/evaluate.js
View File

@@ -1,6 +1,7 @@
and: {
options = {
evaluate: true
evaluate: true,
side_effects: true,
}
input: {
var a;
@@ -76,7 +77,8 @@ and: {
or: {
options = {
evaluate: true
evaluate: true,
side_effects: true,
}
input: {
var a;
@@ -158,7 +160,8 @@ or: {
unary_prefix: {
options = {
evaluate: true
evaluate: true,
side_effects: true,
}
input: {
a = !0 && b;
@@ -1245,3 +1248,61 @@ self_comparison_2: {
}
expect_stdout: "false false true true 'number'"
}
issue_2535_1: {
options = {
booleans: true,
evaluate: true,
sequences: true,
side_effects: true,
}
input: {
if ((x() || true) || y()) z();
if ((x() || true) && y()) z();
if ((x() && true) || y()) z();
if ((x() && true) && y()) z();
if ((x() || false) || y()) z();
if ((x() || false) && y()) z();
if ((x() && false) || y()) z();
if ((x() && false) && y()) z();
}
expect: {
if (x(), 1) z();
if (x(), y()) z();
if (x() || y()) z();
if (x() && y()) z();
if (x() || y()) z();
if (x() && y()) z();
if (x(), y()) z();
if (x(), 0) z();
}
}
issue_2535_2: {
options = {
booleans: true,
evaluate: true,
sequences: true,
side_effects: true,
}
input: {
(x() || true) || y();
(x() || true) && y();
(x() && true) || y();
(x() && true) && y();
(x() || false) || y();
(x() || false) && y();
(x() && false) || y();
(x() && false) && y();
}
expect: {
x(),
x(), y(),
x() || y(),
x() && y(),
x() || y(),
x() && y(),
x(), y(),
x();
}
}