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enhance if_return & inline (#5538)

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This commit is contained in:
Alex Lam S.L
2022-07-06 04:40:07 +01:00
committed by GitHub
parent aa2a9fbedb
commit 0207b46d70
6 changed files with 536 additions and 30 deletions
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96
test/compress/arrows.js
View File

@@ -1073,7 +1073,7 @@ issue_5414_2: {
node_version: ">=4"
}
issue_5416: {
issue_5416_1: {
options = {
dead_code: true,
evaluate: true,
@@ -1095,10 +1095,11 @@ issue_5416: {
expect: {
var f = () => {
{
arguments = void 0;
console;
arguments = void 0,
console.log(arguments);
var arguments;
return;
}
};
f();
@@ -1107,6 +1108,97 @@ issue_5416: {
node_version: ">=4"
}
issue_5416_2: {
options = {
dead_code: true,
evaluate: true,
inline: true,
loops: true,
unused: true,
}
input: {
var f = () => {
while ((() => {
console;
var a = function g(arguments) {
while (console.log(arguments));
}();
})());
};
f();
}
expect: {
var f = () => {
{
console;
var arguments = void 0;
for (; console.log(arguments););
return;
}
};
f();
}
expect_stdout: "undefined"
node_version: ">=4"
}
issue_5416_3: {
options = {
inline: true,
side_effects: true,
unused: true,
}
input: {
var f = () => {
(() => {
var a = function g(arguments) {
console.log(arguments);
}();
})();
};
f();
}
expect: {
var f = () => {
arguments = void 0,
console.log(arguments);
var arguments;
};
f();
}
expect_stdout: "undefined"
node_version: ">=4"
}
issue_5416_4: {
options = {
arrows: true,
inline: true,
side_effects: true,
unused: true,
}
input: {
var f = () => {
(() => {
var a = function g(arguments) {
while (console.log(arguments));
}();
})();
};
f();
}
expect: {
var f = () => {
var arguments = void 0;
while (console.log(arguments));
return;
};
f();
}
expect_stdout: "undefined"
node_version: ">=4"
}
issue_5495: {
input: {
console.log((() => {

35
test/compress/conditionals.js
View File

@@ -1731,7 +1731,7 @@ issue_3576: {
expect_stdout: "PASS"
}
issue_3668: {
issue_3668_1: {
options = {
conditionals: true,
if_return: true,
@@ -1748,6 +1748,38 @@ issue_3668: {
}
console.log(f());
}
expect: {
function f() {
try {
var undefined = typeof f;
if (!f) return undefined;
} catch (e) {
return "FAIL";
}
}
console.log(f());
}
expect_stdout: "undefined"
}
issue_3668_2: {
options = {
conditionals: true,
if_return: true,
}
input: {
function f() {
try {
var undefined = typeof f;
if (!f) return undefined;
return;
} catch (e) {
return "FAIL";
}
FAIL;
}
console.log(f());
}
expect: {
function f() {
try {
@@ -1756,6 +1788,7 @@ issue_3668: {
} catch (e) {
return "FAIL";
}
FAIL;
}
console.log(f());
}

299
test/compress/if_return.js
View File

@@ -1017,3 +1017,302 @@ issue_5523: {
}
expect_stdout: "undefined"
}
drop_catch: {
options = {
if_return: true,
}
input: {
function f() {
try {
throw 42;
} catch (e) {
return console.log("foo"), "bar";
} finally {
console.log("baz");
}
return "bar";
}
console.log(f());
}
expect: {
function f() {
try {
throw 42;
} catch (e) {
console.log("foo");
} finally {
console.log("baz");
}
return "bar";
}
console.log(f());
}
expect_stdout: [
"foo",
"baz",
"bar",
]
}
retain_catch: {
options = {
if_return: true,
}
input: {
function f() {
try {
throw 42;
} catch (e) {
return console.log("foo");
} finally {
console.log("bar");
}
return console.log("foo");
}
f();
}
expect: {
function f() {
try {
throw 42;
} catch (e) {
return console.log("foo");
} finally {
console.log("bar");
}
return console.log("foo");
}
f();
}
expect_stdout: [
"foo",
"bar",
]
}
retain_finally: {
options = {
if_return: true,
}
input: {
function f() {
try {
return console.log("foo"), FAIL;
} catch (e) {
return console.log("bar"), "FAIL";
} finally {
return console.log("baz"), console.log("moo");
}
return console.log("moo");
}
console.log(f());
}
expect: {
function f() {
try {
return console.log("foo"), FAIL;
} catch (e) {
return console.log("bar"), "FAIL";
} finally {
return console.log("baz"), console.log("moo");
}
return console.log("moo");
}
console.log(f());
}
expect_stdout: [
"foo",
"bar",
"baz",
"moo",
"undefined",
]
}
drop_try: {
options = {
if_return: true,
}
input: {
function f() {
try {
return console.log("foo"), "bar";
} finally {
console.log("baz");
}
return "bar";
}
console.log(f());
}
expect: {
function f() {
try {
console.log("foo");
} finally {
console.log("baz");
}
return "bar";
}
console.log(f());
}
expect_stdout: [
"foo",
"baz",
"bar",
]
}
retain_try: {
options = {
if_return: true,
}
input: {
function f() {
try {
return console.log("foo");
} finally {
console.log("bar");
}
return console.log("foo");
}
f();
}
expect: {
function f() {
try {
return console.log("foo");
} finally {
console.log("bar");
}
return console.log("foo");
}
f();
}
expect_stdout: [
"foo",
"bar",
]
}
drop_try_catch: {
options = {
if_return: true,
}
input: {
function f(a) {
try {
if (a())
return console.log("foo"), console.log("baz");
} catch (e) {
return console.log("bar"), console.log("baz");
}
return console.log("baz");
}
f(function() {
return 42;
});
f(function() {});
f();
}
expect: {
function f(a) {
try {
if (a())
console.log("foo");
} catch (e) {
console.log("bar");
}
return console.log("baz");
}
f(function() {
return 42;
});
f(function() {});
f();
}
expect_stdout: [
"foo",
"baz",
"baz",
"bar",
"baz",
]
}
empty_try: {
options = {
if_return: true,
reduce_vars: true,
unused: true,
}
input: {
console.log(function() {
return f;
function f() {
try {} finally {}
return "PASS";
}
}()());
}
expect: {
console.log(function() {
return function() {
try {} finally {}
return "PASS";
};
}()());
}
expect_stdout: "PASS"
}
sequence_void_1: {
options = {
if_return: true,
}
input: {
function f() {
{
if (console)
return console, void console.log("PASS");
return;
}
}
f();
}
expect: {
function f() {
if (console)
return console, void console.log("PASS");
}
f();
}
expect_stdout: "PASS"
}
sequence_void_2: {
options = {
if_return: true,
}
input: {
function f() {
{
if (console)
return console, void console.log("PASS");
return;
}
FAIL;
}
f();
}
expect: {
function f() {
if (console)
console, void console.log("PASS");
return;
FAIL;
}
f();
}
expect_stdout: "PASS"
}

2
test/compress/let.js
View File

@@ -1659,7 +1659,7 @@ issue_4438: {
function f() {
if (console) {
let a = console.log;
void a("PASS");
a("PASS");
}
}
f();

29
test/compress/yields.js
View File

@@ -1183,6 +1183,35 @@ issue_4641_2: {
node_version: ">=10"
}
issue_4641_3: {
options = {
if_return: true,
}
input: {
console.log(typeof async function*() {
try {
return void "FAIL";
} finally {
console.log("PASS");
}
}().next().then);
}
expect: {
console.log(typeof async function*() {
try {
return void "FAIL";
} finally {
console.log("PASS");
}
}().next().then);
}
expect_stdout: [
"function",
"PASS",
]
node_version: ">=10"
}
issue_4769_1: {
options = {
side_effects: true,