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-rw-r--r--test/compress/drop-unused.js34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/compress/drop-unused.js b/test/compress/drop-unused.js
index 8c912a57..b66320ad 100644
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -2755,3 +2755,37 @@ issue_3962_2: {
}
expect_stdout: "PASS"
}
+
+issue_3986: {
+ options = {
+ reduce_vars: true,
+ side_effects: true,
+ toplevel: true,
+ unused: true,
+ }
+ input: {
+ var a = 0, b = 0;
+ (function() {
+ try {
+ throw 42;
+ } catch (e) {
+ a++;
+ }
+ b = b && 0;
+ })(b *= a);
+ console.log(b);
+ }
+ expect: {
+ var a = 0, b = 0;
+ (function() {
+ try {
+ throw 42;
+ } catch (e) {
+ a++;
+ }
+ b = b && 0;
+ })(b *= a);
+ console.log(b);
+ }
+ expect_stdout: "0"
+}