Check that type name does not contain "<"

1 files changed, 3 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/couscous/types/ScalarType.java b/src/main/java/org/zwobble/couscous/types/ScalarType.java
index a96c8c8..136b6cb 100644
--- a/src/main/java/org/zwobble/couscous/types/ScalarType.java
+++ b/src/main/java/org/zwobble/couscous/types/ScalarType.java
@@ -9,6 +9,9 @@ public class ScalarType implements Type {
         if (Strings.isNullOrEmpty(qualifiedName)) {
             throw new IllegalArgumentException("qualifiedName cannot be blank");
         }
+        if (qualifiedName.contains("<")) {
+            throw new IllegalArgumentException(qualifiedName + " contains <");
+        }
         return new ScalarType(qualifiedName);
     }