fix corner cases in inline & unused (#4509)

fixes #4508
2021-01-05 16:15:12 +00:00
parent 6eceac0966
commit 7ebfb22d16
3 changed files with 46 additions and 20 deletions
--- a/test/compress/destructured.js
+++ b/test/compress/destructured.js
@@ -2356,3 +2356,31 @@ issue_4504: {
    expect_stdout: "PASS"
    node_version: ">=6"
 }
+
+issue_4508: {
+    options = {
+        inline: true,
+        toplevel: true,
+        unused: true,
+    }
+    input: {
+        for (var i = 0; i < 2; i++)
+            (function f([ a ]) {
+                var a = console.log(a) && b, b = null;
+            })([ "PASS" ]);
+    }
+    expect: {
+        for (var i = 0; i < 2; i++)
+            [ [ a ] ] = [ [ "PASS" ] ],
+            b = void 0,
+            a = console.log(a) && b,
+            b = null,
+            void 0;
+        var a, b;
+    }
+    expect_stdout: [
+        "PASS",
+        "PASS",
+    ]
+    node_version: ">=6"
+}