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fix corner case in conditionals (#5676)

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This commit is contained in:
Alex Lam S.L
2022-09-23 04:09:55 +01:00
committed by GitHub
parent 37d3e4feaa
commit 9ac3879b06
3 changed files with 74 additions and 10 deletions
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63
test/compress/conditionals.js
View File

@@ -278,6 +278,36 @@ merge_tail_2: {
]
}
merge_tail_3: {
options = {
conditionals: true,
reduce_vars: true,
unused: true,
}
input: {
(function(a, b) {
if (b = a.shift())
console.log(b);
else {
if (b = a.shift())
while (console.log("foo"));
console.log(b);
}
})([ false, "bar" ]);
}
expect: {
(function(a, b) {
if (!(b = a.shift()) && (b = a.shift()))
while (console.log("foo"));
console.log(b);
})([ false, "bar" ]);
}
expect_stdout: [
"foo",
"bar",
]
}
merge_tail_sequence_1: {
options = {
conditionals: true,
@@ -368,6 +398,39 @@ merge_tail_sequence_2: {
]
}
merge_tail_sequence_3: {
options = {
conditionals: true,
reduce_vars: true,
unused: true,
}
input: {
(function(a, b) {
if (b = a.shift())
console.log("foo"),
console.log(b);
else {
if (b = a.shift())
while (console.log("bar"));
console.log(b);
}
})([ false, "baz" ]);
}
expect: {
(function(a, b) {
if (b = a.shift())
console.log("foo");
else if (b = a.shift())
while (console.log("bar"));
console.log(b);
})([ false, "baz" ]);
}
expect_stdout: [
"bar",
"baz",
]
}
cond_1: {
options = {
conditionals: true,

12
test/compress/spreads.js
View File

@@ -13,12 +13,12 @@ collapse_vars_1: {
}
input: {
var a;
[ ...a = "PASS", "PASS"].slice();
[ ...a = "PASS", "PASS" ].slice();
console.log(a);
}
expect: {
var a;
[ ...a = "PASS", "PASS"].slice();
[ ...a = "PASS", "PASS" ].slice();
console.log(a);
}
expect_stdout: "PASS"
@@ -33,7 +33,7 @@ collapse_vars_2: {
var a = "FAIL";
try {
a = "PASS";
[ ...42, "PASS"].slice();
[ ...42, "PASS" ].slice();
} catch (e) {
console.log(a);
}
@@ -42,7 +42,7 @@ collapse_vars_2: {
var a = "FAIL";
try {
a = "PASS";
[ ...42, "PASS"].slice();
[ ...42, "PASS" ].slice();
} catch (e) {
console.log(a);
}
@@ -58,7 +58,7 @@ collapse_vars_3: {
input: {
var a = "FAIL";
try {
[ ...(a = "PASS", 42), "PASS"].slice();
[ ...(a = "PASS", 42), "PASS" ].slice();
} catch (e) {
console.log(a);
}
@@ -66,7 +66,7 @@ collapse_vars_3: {
expect: {
var a = "FAIL";
try {
[ ...(a = "PASS", 42), "PASS"].slice();
[ ...(a = "PASS", 42), "PASS" ].slice();
} catch (e) {
console.log(a);
}