;; Syntax

(module
  (type $t (func))

  (func
    (param
      funcref
      externref
      (ref func)
      (ref extern)
      (ref 0)
      (ref $t)
      (ref 0)
      (ref $t)
      (ref null func)
      (ref null extern)
      (ref null 0)
      (ref null $t)
    )
  )
)


;; Undefined type index.

(assert_invalid
  (module (type $type-func-param-invalid (func (param (ref 1)))))
  "unknown type"
)
(assert_invalid
  (module (type $type-func-result-invalid (func (result (ref 1)))))
  "unknown type"
)

(assert_invalid
  (module (global $global-invalid (ref null 1) (ref.null 1)))
  "unknown type"
)

(assert_invalid
  (module (table $table-invalid 10 (ref null 1)))
  "unknown type"
)

(assert_invalid
  (module (elem $elem-invalid (ref 1)))
  "unknown type"
)

(assert_invalid
  (module (func $func-param-invalid (param (ref 1))))
  "unknown type"
)
(assert_invalid
  (module (func $func-result-invalid (result (ref 1))))
  "unknown type"
)
(assert_invalid
  (module (func $func-local-invalid (local (ref null 1))))
  "unknown type"
)

(assert_invalid
  (module (func $block-result-invalid (drop (block (result (ref 1)) (unreachable)))))
  "unknown type"
)
(assert_invalid
  (module (func $loop-result-invalid (drop (loop (result (ref 1)) (unreachable)))))
  "unknown type"
)
(assert_invalid
  (module (func $if-invalid (drop (if (result (ref 1)) (then) (else)))))
  "unknown type"
)

(assert_invalid
  (module (func $select-result-invalid (drop (select (result (ref 1)) (unreachable)))))
  "unknown type"
)