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fix corner case in collapse_vars (#3701)

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fixes #3700
This commit is contained in:
Alex Lam S.L 2020-01-30 09:04:44 +08:00 committed by GitHub
parent a3754068dd
commit 79c60032a5
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 32 additions and 1 deletions
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2
lib/compress.js
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@ -1395,7 +1395,7 @@ merge(Compressor.prototype, {
var rhs_fn = scan_rhs;
for (var i = 0; !abort && i < fn.body.length; i++) {
var stat = fn.body[i];
if (stat instanceof AST_Exit) {
if (stat instanceof AST_Return) {
if (stat.value) stat.value.transform(scanner);
break;
}

31
test/compress/collapse_vars.js
View File

@ -7734,3 +7734,34 @@ issue_3698_3: {
}
expect_stdout: "2"
}
issue_3700: {
options = {
collapse_vars: true,
}
input: {
var a = "FAIL";
try {
a = "PASS";
(function() {
throw 0;
})();
a = 1 + a;
} catch (e) {
}
console.log(a);
}
expect: {
var a = "FAIL";
try {
a = "PASS";
(function() {
throw 0;
})();
a = 1 + a;
} catch (e) {
}
console.log(a);
}
expect_stdout: "PASS"
}