fix corner case in collapse_vars (#3672)

fixes #3671
2020-01-07 19:34:16 +08:00
parent d17191111a
commit 4d6771b9b1
2 changed files with 28 additions and 1 deletions
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -7464,3 +7464,30 @@ issue_3651: {
    }
    expect_stdout: "PASS"
 }
+
+issue_3671: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        var a = 0;
+        try {
+            a++;
+            A += 0;
+            a = 1 + a;
+        } catch (e) {
+            console.log(a);
+        }
+    }
+    expect: {
+        var a = 0;
+        try {
+            a++;
+            A += 0;
+            a = 1 + a;
+        } catch (e) {
+            console.log(a);
+        }
+    }
+    expect_stdout: "1"
+}