From b8b133d91a7a65f3375d391a036623901d1e357f Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Sat, 18 Feb 2017 19:19:12 +0800
Subject: improve keep_fargs & keep_fnames - utilise in_use_ids instead of
 unreferenced() - drop_unused now up-to-date for subsequent passes

closes #1476
---
 test/compress/drop-unused.js | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'test')

diff --git a/test/compress/drop-unused.js b/test/compress/drop-unused.js
index 5620cf40..5a09c6cd 100644
--- a/test/compress/drop-unused.js
+++ b/test/compress/drop-unused.js
@@ -556,3 +556,37 @@ drop_toplevel_keep_assign: {
         console.log(b = 3);
     }
 }
+
+drop_fargs: {
+    options = {
+        keep_fargs: false,
+        unused: true,
+    }
+    input: {
+        function f(a) {
+            var b = a;
+        }
+    }
+    expect: {
+        function f() {}
+    }
+}
+
+drop_fnames: {
+    options = {
+        keep_fnames: false,
+        unused: true,
+    }
+    input: {
+        function f() {
+            return function g() {
+                var a = g;
+            };
+        }
+    }
+    expect: {
+        function f() {
+            return function() {};
+        }
+    }
+}
-- 
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