Merge pull request #13 from vapor/if-nullability

evaluate non-nil as true in if tag
vapor · Sep 1, 2016 · 73be197 · 73be197
2 parents 491436e + 28d50c1
commit 73be197
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/Sources/Leaf/Tag/Models/If.swift b/Sources/Leaf/Tag/Models/If.swift
@@ -20,6 +20,9 @@ public final class If: Tag {
         tagTemplate: TagTemplate,
         arguments: [Argument],
         value: Node?) -> Bool {
-        return arguments.first?.value?.bool == true
+        guard let value = arguments.first?.value else { return false }
+        // Existence of bool, evaluate bool. Otherwise, not-nil returns true.
+        guard let bool = value.bool else { return true }
+        return bool
     }
 }