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enhance switches (#3583)

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This commit is contained in:
Alex Lam S.L
2019-11-13 20:03:48 +08:00
committed by GitHub
parent fe65ce9658
commit ab15c40770
2 changed files with 168 additions and 23 deletions
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164
test/compress/switch.js
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@@ -261,13 +261,13 @@ drop_default_1: {
}
input: {
switch (foo) {
case 'bar': baz();
case "bar": baz();
default:
}
}
expect: {
switch (foo) {
case 'bar': baz();
case "bar": baz();
}
}
}
@@ -279,14 +279,14 @@ drop_default_2: {
}
input: {
switch (foo) {
case 'bar': baz(); break;
case "bar": baz(); break;
default:
break;
}
}
expect: {
switch (foo) {
case 'bar': baz();
case "bar": baz();
}
}
}
@@ -298,7 +298,7 @@ keep_default: {
}
input: {
switch (foo) {
case 'bar': baz();
case "bar": baz();
default:
something();
break;
@@ -306,7 +306,7 @@ keep_default: {
}
expect: {
switch (foo) {
case 'bar': baz();
case "bar": baz();
default:
something();
}
@@ -347,21 +347,48 @@ issue_1663: {
expect_stdout: true
}
drop_case: {
drop_case_1: {
options = {
dead_code: true,
switches: true,
}
input: {
switch (foo) {
case 'bar': baz(); break;
case 'moo':
case "bar": baz(); break;
case "moo":
break;
}
}
expect: {
switch (foo) {
case 'bar': baz();
case "bar": baz();
}
}
}
drop_case_2: {
options = {
dead_code: true,
switches: true,
}
input: {
switch (foo) {
case "bar":
bar();
break;
default:
case "moo":
moo();
break;
}
}
expect: {
switch (foo) {
case "bar":
bar();
break;
default:
moo();
}
}
}
@@ -373,14 +400,14 @@ keep_case: {
}
input: {
switch (foo) {
case 'bar': baz(); break;
case "bar": baz(); break;
case moo:
break;
}
}
expect: {
switch (foo) {
case 'bar': baz(); break;
case "bar": baz(); break;
case moo:
}
}
@@ -494,7 +521,7 @@ issue_1674: {
expect_stdout: "PASS"
}
issue_1679: {
issue_1679_1: {
options = {
dead_code: true,
evaluate: true,
@@ -525,7 +552,6 @@ issue_1679: {
function f() {
switch (--b) {
default:
case !function x() {}:
break;
case b--:
switch (0) {
@@ -539,7 +565,53 @@ issue_1679: {
f();
console.log(a, b);
}
expect_stdout: true
expect_stdout: "99 8"
}
issue_1679_2: {
options = {
dead_code: true,
evaluate: true,
passes: 2,
switches: true,
}
input: {
var a = 100, b = 10;
function f() {
switch (--b) {
default:
case !function x() {}:
break;
case b--:
switch (0) {
default:
case a--:
}
break;
case (a++):
break;
}
}
f();
console.log(a, b);
}
expect: {
var a = 100, b = 10;
function f() {
switch (--b) {
case b--:
switch (0) {
default:
case a--:
}
break;
case (a++):
}
}
f();
console.log(a, b);
}
expect_stdout: "99 8"
}
issue_1680_1: {
@@ -864,3 +936,65 @@ issue_1750: {
}
expect_stdout: "0 2"
}
drop_switch_1: {
options = {
dead_code: true,
switches: true,
}
input: {
switch (foo) {
default:
break;
case "bar":
break;
}
}
expect: {
foo;
}
}
drop_switch_2: {
options = {
dead_code: true,
switches: true,
}
input: {
switch (foo) {
default:
case "bar":
baz();
}
}
expect: {
foo;
baz();
}
}
drop_switch_3: {
options = {
dead_code: true,
switches: true,
}
input: {
console.log(function() {
switch (0) {
default:
return "PASS";
case 1:
}
}());
}
expect: {
console.log(function() {
switch (0) {
default:
return "PASS";
case 1:
}
}());
}
expect_stdout: "PASS"
}