(module
 (type $none_=>_none (func))
 (type $i32_=>_i32 (func (param i32) (result i32)))
 (type $none_=>_i32 (func (result i32)))
 (type $ref_null<i32_->_i32>_=>_i32 (func (param (ref null (func (param i32) (result i32)))) (result i32)))
 (type $ref<i32_->_i32>_=>_i32 (func (param (ref (func (param i32) (result i32)))) (result i32)))
 (func $call-ref
  (call_ref
   (ref.func $call-ref)
  )
 )
 (func $return-call-ref
  (return_call_ref
   (ref.func $call-ref)
  )
 )
 (func $call-ref-more (param $0 i32) (result i32)
  (call_ref
   (i32.const 42)
   (ref.func $call-ref-more)
  )
 )
 (func $call_from-param (param $f (ref (func (param i32) (result i32)))) (result i32)
  (call_ref
   (i32.const 42)
   (local.get $f)
  )
 )
 (func $call_from-param-null (param $f (ref null (func (param i32) (result i32)))) (result i32)
  (call_ref
   (i32.const 42)
   (local.get $f)
  )
 )
 (func $call_from-local-null (result i32)
  (local $f (ref null (func (param i32) (result i32))))
  (local.set $f
   (ref.func $call-ref-more)
  )
  (call_ref
   (i32.const 42)
   (local.get $f)
  )
 )
)