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Split-fn

Split-fn-extdecl

Transform an external declaration.

Signature
(split-fn-extdecl target-fn new-fn-name extdecl split-point) → (mv er target-found extdecls)
Arguments: target-fn — Guard (identp target-fn).; new-fn-name — Guard (identp new-fn-name).; extdecl — Guard (extdeclp extdecl).; split-point — Guard (natp split-point).
Returns: target-found — Type (booleanp target-found).; extdecls — Type (extdecl-listp extdecls).

Definitions and Theorems

Function: split-fn-extdecl

(defun split-fn-extdecl (target-fn new-fn-name extdecl split-point)
 (declare (xargs :guard (and (identp target-fn)
                             (identp new-fn-name)
                             (extdeclp extdecl)
                             (natp split-point))))
 (let ((__function__ 'split-fn-extdecl))
   (declare (ignorable __function__))
   (b* (((reterr) nil nil))
     (extdecl-case
          extdecl :fundef
          (b* (((erp fundef1 fundef2)
                (split-fn-fundef target-fn new-fn-name
                                 extdecl.unwrap split-point)))
            (fundef-option-case
                 fundef2
                 :some (retok t
                              (list (extdecl-fundef fundef1)
                                    (extdecl-fundef fundef2.val)))
                 :none (retok nil (list (extdecl-fundef fundef1)))))
          :decl (retok nil (list (extdecl-fix extdecl)))
          :empty (retok nil (list (extdecl-fix extdecl)))
          :asm (retok nil (list (extdecl-fix extdecl)))))))

Theorem: booleanp-of-split-fn-extdecl.target-found

(defthm booleanp-of-split-fn-extdecl.target-found
  (b* (((mv acl2::?er ?target-found ?extdecls)
        (split-fn-extdecl target-fn
                          new-fn-name extdecl split-point)))
    (booleanp target-found))
  :rule-classes :rewrite)

Theorem: extdecl-listp-of-split-fn-extdecl.extdecls

(defthm extdecl-listp-of-split-fn-extdecl.extdecls
  (b* (((mv acl2::?er ?target-found ?extdecls)
        (split-fn-extdecl target-fn
                          new-fn-name extdecl split-point)))
    (extdecl-listp extdecls))
  :rule-classes :rewrite)