fix corner case collapse_vars (#4921)

fixes #4920
2021-05-08 19:59:45 +01:00
parent bbca9de9cd
commit bb225367cb
2 changed files with 54 additions and 22 deletions
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -9194,3 +9194,29 @@ issue_4918: {
    }
    expect_stdout: "PASS"
 }
+
+issue_4920: {
+    options = {
+        collapse_vars: true,
+        toplevel: true,
+    }
+    input: {
+        var a = "PASS", b;
+        ({
+            get PASS() {
+                a = "FAIL";
+            },
+        })[b = a];
+        console.log(b);
+    }
+    expect: {
+        var a = "PASS", b;
+        ({
+            get PASS() {
+                a = "FAIL";
+            },
+        })[b = a];
+        console.log(b);
+    }
+    expect_stdout: "PASS"
+}