From b1da85b140eb857e1c88e5fa94e9b94b28cf9111 Mon Sep 17 00:00:00 2001
From: Kyle Fuller <kyle@fuller.li>
Date: Mon, 28 Nov 2016 19:10:48 +0000
Subject: [PATCH] feat(default filter): Support multiple defaults

---
 Sources/Filters.swift               | 12 +++++++++++-
 Tests/StencilTests/FilterSpec.swift |  6 ++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/Sources/Filters.swift b/Sources/Filters.swift
index 0bac235..a172516 100644
--- a/Sources/Filters.swift
+++ b/Sources/Filters.swift
@@ -33,7 +33,17 @@ func lowercase(_ value: Any?) -> Any? {
 }
 
 func defaultFilter(value: Any?, arguments: [Any?]) -> Any? {
-  return value ?? arguments.first as Any
+  if let value = value {
+    return value
+  }
+
+  for argument in arguments {
+    if let argument = argument {
+      return argument
+    }
+  }
+
+  return nil
 }
 
 func joinFilter(value: Any?, arguments: [Any?]) throws -> Any? {
diff --git a/Tests/StencilTests/FilterSpec.swift b/Tests/StencilTests/FilterSpec.swift
index 0b6610a..5b63057 100644
--- a/Tests/StencilTests/FilterSpec.swift
+++ b/Tests/StencilTests/FilterSpec.swift
@@ -101,6 +101,12 @@ func testFilter() {
       let result = try template.render(Context(dictionary: [:]))
       try expect(result) == "Hello World"
     }
+
+    $0.it("supports multiple defaults") {
+      let template = Template(templateString: "Hello {{ name|default:a,b,c,\"World\" }}")
+      let result = try template.render(Context(dictionary: [:]))
+      try expect(result) == "Hello World"
+    }
   }
 
   describe("join filter") {