From 72d58149f998b041037fcd01e7979576fed75def Mon Sep 17 00:00:00 2001
From: Bart Whiteley <@bwhiteley>
Date: Sat, 12 Nov 2016 16:08:10 -0700
Subject: [PATCH] Better error for URLs

---
 Sources/ValueType.swift | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Sources/ValueType.swift b/Sources/ValueType.swift
index 90c7586..e147c05 100644
--- a/Sources/ValueType.swift
+++ b/Sources/ValueType.swift
@@ -81,8 +81,11 @@ extension Set where Element: ValueType {
 
 extension URL: ValueType {
     public static func value(from object: Any) throws -> URL {
-        guard let urlString = object as? String, let objectValue = URL(string: urlString) else {
-            throw MarshalError.typeMismatch(expected: self, actual: type(of: object))
+        guard let urlString = object as? String else {
+            throw MarshalError.typeMismatch(expected: String.self, actual: type(of: object))
+        }
+        guard let objectValue = URL(string: urlString) else {
+            throw MarshalError.typeMismatch(expected: "valid URL", actual: urlString)
         }
         return objectValue
     }