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Syntax-abstraction

Abs-comma-function-parameter

Abstract a ( "," function-parameter ) to a function parameters.

Signature
(abs-comma-function-parameter tree) → fpar
Arguments: tree — Guard (abnf::treep tree).
Returns: fpar — Type (funparam-resultp fpar).

Definitions and Theorems

Function: abs-comma-function-parameter

(defun abs-comma-function-parameter (tree)
  (declare (xargs :guard (abnf::treep tree)))
  (let ((__function__ 'abs-comma-function-parameter))
    (declare (ignorable __function__))
    (b* (((okf (abnf::tree-list-tuple2 sub))
          (abnf::check-tree-nonleaf-2 tree nil))
         ((okf tree)
          (abnf::check-tree-list-1 sub.1st))
         ((okf &)
          (abnf::check-tree-ichars tree ","))
         ((okf tree)
          (abnf::check-tree-list-1 sub.2nd)))
      (abs-function-parameter tree))))

Theorem: funparam-resultp-of-abs-comma-function-parameter

(defthm funparam-resultp-of-abs-comma-function-parameter
  (b* ((fpar (abs-comma-function-parameter tree)))
    (funparam-resultp fpar))
  :rule-classes :rewrite)

Theorem: abs-comma-function-parameter-of-tree-fix-tree

(defthm abs-comma-function-parameter-of-tree-fix-tree
  (equal (abs-comma-function-parameter (abnf::tree-fix tree))
         (abs-comma-function-parameter tree)))

Theorem: abs-comma-function-parameter-tree-equiv-congruence-on-tree

(defthm abs-comma-function-parameter-tree-equiv-congruence-on-tree
  (implies (abnf::tree-equiv tree tree-equiv)
           (equal (abs-comma-function-parameter tree)
                  (abs-comma-function-parameter tree-equiv)))
  :rule-classes :congruence)