• Added a specific error message when attempting to use a delegate (or Func<>, Action<>) as an argument to a field
• Improved the error messages for some argument type validation failures such that the the owner of the argument will now be named for easier identification.

Specification Fixes

• Fixed a bug where non-leaf graph types (OBJECT, INTERFACE, INPUT_OBJECT) that declare no fields were allowed to be added to the schema in some circumstances. An exception will now be thrown at startup. [§3.6][§3.7][§3.10]

Bug Fixes

• Added a rule to explicitly exclude any fields that accept, as an argument, or return as a value a delegate, Func<>, or Action<>. (i.e. anything that inherits from Delegate)
• Fixed a bug where an argument to a [Query], [Mutation] or Object field would not properly validate its type in some cases.
• Fixed a bug where a invalid method or property on an object, interface or controller would cause a startup exception even if that method or property would not have been added as a field on the schema.
• Fixed a bug where an object, interface or controller with overloaded methods would cause a startup exception even when only one or none of the methods would be included in the schema.
  • An error will still be thrown if multiple overloads are included in a graph type without unique field names.
• Fixed a bug where inherited methods or properties declared classes Object or ValueType may be parsed by the templating system in some cases.

Templating Changes

• Altered the ISchemaItemTemplate.ValidateOrThrow() method to include a parameter for optionally validating children
• Shifted template validating into the Type Makers (previously part of templating). Schema Item Templates are no longer "pre-validated" and only undergo validation if they are being added to a schema.