fix corner case in unused (#4457)

fixes #4456
2020-12-25 12:10:58 +00:00
parent f345175bc2
commit a1b2735dd8
2 changed files with 39 additions and 8 deletions
--- a/test/compress/destructured.js
+++ b/test/compress/destructured.js
@@ -2164,3 +2164,36 @@ issue_4446: {
    expect_stdout: "PASS"
    node_version: ">=6"
 }
+
+issue_4456: {
+    options = {
+        pure_getters: true,
+        unused: true,
+    }
+    input: {
+        var o = {
+            set p(v) {
+                console.log(v);
+            },
+        };
+        [ function() {
+            try {
+                return o;
+            } catch ({}) {}
+        }().p ] = [ "PASS" ];
+    }
+    expect: {
+        var o = {
+            set p(v) {
+                console.log(v);
+            },
+        };
+        [ function() {
+            try {
+                return o;
+            } catch ({}) {}
+        }().p ] = [ "PASS" ];
+    }
+    expect_stdout: "PASS"
+    node_version: ">=6"
+}