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Syntax-abstraction

Abs-locator

Abstract a locator to a Leo locator.

Signature
(abs-locator tree) → loc
Arguments: tree — Guard (abnf::treep tree).
Returns: loc — Type (locator-resultp loc).

Definitions and Theorems

Function: abs-locator

(defun abs-locator (tree)
  (declare (xargs :guard (abnf::treep tree)))
  (let ((__function__ 'abs-locator))
    (declare (ignorable __function__))
    (b* (((okf (abnf::tree-list-tuple3 sub))
          (abnf::check-tree-nonleaf-3 tree "locator"))
         ((okf tree)
          (abnf::check-tree-list-1 sub.1st))
         ((okf program) (abs-program-id tree))
         ((okf tree)
          (abnf::check-tree-list-1 sub.2nd))
         ((okf &)
          (abnf::check-tree-schars tree "/"))
         ((okf tree)
          (abnf::check-tree-list-1 sub.3rd))
         ((okf name) (abs-identifier tree)))
      (make-locator :program program
                    :name name))))

Theorem: locator-resultp-of-abs-locator

(defthm locator-resultp-of-abs-locator
  (b* ((loc (abs-locator tree)))
    (locator-resultp loc))
  :rule-classes :rewrite)

Theorem: abs-locator-of-tree-fix-tree

(defthm abs-locator-of-tree-fix-tree
  (equal (abs-locator (abnf::tree-fix tree))
         (abs-locator tree)))

Theorem: abs-locator-tree-equiv-congruence-on-tree

(defthm abs-locator-tree-equiv-congruence-on-tree
  (implies (abnf::tree-equiv tree tree-equiv)
           (equal (abs-locator tree)
                  (abs-locator tree-equiv)))
  :rule-classes :congruence)