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fix corner cases in if_return (#5585)

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fixes #5583
fixes #5584
fixes #5586
This commit is contained in:
Alex Lam S.L
2022-07-30 09:07:19 +01:00
committed by GitHub
parent 08c386f363
commit ab5c7e6863
3 changed files with 277 additions and 13 deletions
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239
test/compress/if_return.js
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@@ -218,6 +218,79 @@ if_return_8: {
}
}
if_return_cond_void_1: {
options = {
if_return: true,
}
input: {
function f(a) {
if (a)
return console.log("foo") ? console.log("bar") : void 0;
}
f();
f(42);
}
expect: {
function f(a) {
return a && console.log("foo") ? console.log("bar") : void 0;
}
f();
f(42);
}
expect_stdout: "foo"
}
if_return_cond_void_2: {
options = {
if_return: true,
}
input: {
function f(a) {
if (a)
return console.log("foo") ? void 0 : console.log("bar");
}
f();
f(42);
}
expect: {
function f(a) {
return a || console.log("foo") ? void 0 : console.log("bar");
}
f();
f(42);
}
expect_stdout: [
"foo",
"bar",
]
}
if_return_cond_void_3: {
options = {
if_return: true,
}
input: {
function f(a) {
if (a)
return console.log("foo") ? void console.log("bar") : void console.log("baz");
}
f();
f(42);
}
expect: {
function f(a) {
if (a)
return console.log("foo") ? void console.log("bar") : void console.log("baz");
}
f();
f(42);
}
expect_stdout: [
"foo",
"baz",
]
}
issue_1089: {
options = {
booleans: true,
@@ -1588,3 +1661,169 @@ switch_return_4: {
"bar",
]
}
switch_return_5: {
options = {
dead_code: true,
if_return: true,
}
input: {
function f(a) {
switch (console.log("foo")) {
case console.log("bar"):
if (a)
return;
return;
break;
case null:
FAIL;
}
}
f();
f(42);
}
expect: {
function f(a) {
switch (console.log("foo")) {
case console.log("bar"):
if (a);
return;
case null:
FAIL;
}
}
f();
f(42);
}
expect_stdout: [
"foo",
"bar",
"foo",
"bar",
]
}
issue_5583: {
options = {
conditionals: true,
if_return: true,
side_effects: true,
}
input: {
do {
switch (console) {
default:
if (!console.log("foo"))
continue;
break;
case console.log("bar"):
FAIL;
}
} while (console.log("baz"));
}
expect: {
do {
switch (console) {
default:
console.log("foo");
break;
case console.log("bar"):
FAIL;
}
} while (console.log("baz"));
}
expect_stdout: [
"bar",
"foo",
"baz",
]
}
issue_5584_1: {
options = {
conditionals: true,
if_return: true,
}
input: {
function f(a) {
switch (a) {
case 42:
if (!console.log("PASS"))
return;
return FAIL;
}
}
f(42);
}
expect: {
function f(a) {
switch (a) {
case 42:
if (console.log("PASS"))
return FAIL;
}
}
f(42);
}
expect_stdout: "PASS"
}
issue_5584_2: {
options = {
if_return: true,
}
input: {
function f(a) {
switch (a) {
case console.log("PASS"):
if (console)
break;
return FAIL;
}
}
f();
}
expect: {
function f(a) {
switch (a) {
case console.log("PASS"):
if (console)
break;
return FAIL;
}
}
f();
}
expect_stdout: "PASS"
}
issue_5586: {
options = {
if_return: true,
}
input: {
L: do {
switch (console.log("foo")) {
case console.log("bar"):
if (console)
break;
break L;
}
} while (console.log("baz"));
}
expect: {
L: do {
switch (console.log("foo")) {
case console.log("bar"):
if (console)
break;
break L;
}
} while (console.log("baz"));
}
expect_stdout: [
"foo",
"bar",
"baz",
]
}