util: fix util.inspect with proxied function

PR-URL: #25244
Fixes: #25212
Reviewed-By: Ben Noordhuis <[email protected]>
Reviewed-By: Minwoo Jung <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Ujjwal Sharma <[email protected]>

Author: starkwang

lib/internal/util/inspect.js

@@ -592,7 +592,10 @@ function formatRaw(ctx, value, recurseTimes) {
       }
     } else if (typeof value === 'function') {
       const type = constructor || tag || 'Function';
-      const name = `${type}${value.name ? `: ${value.name}` : ''}`;
+      let name = `${type}`;
+      if (value.name && typeof value.name === 'string') {
+        name += `: ${value.name}`;
+      }
       if (keys.length === 0)
         return ctx.stylize(`[${name}]`, 'special');
       base = `[${name}]`;

test/parallel/test-util-inspect-proxy.js

@@ -85,3 +85,17 @@ assert.strictEqual(util.inspect(proxy8, opts), expected8);
 assert.strictEqual(util.inspect(proxy9, opts), expected9);
 assert.strictEqual(util.inspect(proxy8), '[Function: Date]');
 assert.strictEqual(util.inspect(proxy9), '[Function: Date]');
+
+const proxy10 = new Proxy(() => {}, {});
+const proxy11 = new Proxy(() => {}, {
+  get() {
+    return proxy11;
+  },
+  apply() {
+    return proxy11;
+  }
+});
+const expected10 = '[Function]';
+const expected11 = '[Function]';
+assert.strictEqual(util.inspect(proxy10), expected10);
+assert.strictEqual(util.inspect(proxy11), expected11);