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authorAlex Lam S.L <alexlamsl@gmail.com>2020-10-24 03:19:43 +0100
committerGitHub <noreply@github.com>2020-10-24 10:19:43 +0800
commit8e86d05c3228635ad969e38ce5f90b2a75d1885c (patch)
treed5fc48c89f6d1f0047c304941628d5673b2ea65d /test
parent9e40abededaae3568e6cd931268cfaa0bd0ffbc0 (diff)
downloadtracifyjs-8e86d05c3228635ad969e38ce5f90b2a75d1885c.tar.gz
tracifyjs-8e86d05c3228635ad969e38ce5f90b2a75d1885c.zip
fix corner case in `merge_vars` (#4238)
fixes #4237
Diffstat (limited to 'test')
-rw-r--r--test/compress/merge_vars.js81
1 files changed, 81 insertions, 0 deletions
diff --git a/test/compress/merge_vars.js b/test/compress/merge_vars.js
index 28a0135d..6ada9297 100644
--- a/test/compress/merge_vars.js
+++ b/test/compress/merge_vars.js
@@ -3011,3 +3011,84 @@ issue_4168_use_strict: {
}
expect_stdout: "PASS true 42"
}
+
+issue_4237_1: {
+ options = {
+ merge_vars: true,
+ }
+ input: {
+ console.log(function(a) {
+ do {
+ var b = a++;
+ if (b)
+ return "FAIL";
+ continue;
+ var c = 42;
+ } while ("undefined" != typeof c);
+ return "PASS";
+ }(0));
+ }
+ expect: {
+ console.log(function(a) {
+ do {
+ var b = a++;
+ if (b)
+ return "FAIL";
+ continue;
+ var c = 42;
+ } while ("undefined" != typeof c);
+ return "PASS";
+ }(0));
+ }
+ expect_stdout: "PASS"
+}
+
+issue_4237_2: {
+ options = {
+ dead_code: true,
+ evaluate: true,
+ loops: true,
+ merge_vars: true,
+ switches: true,
+ }
+ input: {
+ console.log(function(a) {
+ do {
+ switch (0) {
+ case 0:
+ var b = a++;
+ default:
+ while (b)
+ return "FAIL";
+ }
+ try {
+ var c = 0;
+ } finally {
+ continue;
+ }
+ var d = 0;
+ } while ("undefined" != typeof d);
+ return "PASS";
+ }(0));
+ }
+ expect: {
+ console.log(function(a) {
+ do {
+ switch (0) {
+ case 0:
+ var b = a++;
+ if (b)
+ return "FAIL";
+ }
+ try {
+ var c = 0;
+ } finally {
+ continue;
+ }
+ var d = 0;
+ } while ("undefined" != typeof d);
+ return "PASS";
+ }(0));
+ }
+ expect_stdout: "PASS"
+}