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• Parse-assignments

Vl-parse-list-of-variable-assignments

Parses a list_of_variable_assignments into a list of (lvalue . expr) pairs.

Signature

(vl-parse-list-of-variable-assignments &key (tokstream 'tokstream) 
                                       (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

config — Guard (vl-loadconfig-p config).

Both Verilog-2005 and SystemVerilog-2012 agree:

list_of_variable_assignments ::= variable_assignment { ',' variable_assignment }

Definitions and Theorems

Function: vl-parse-list-of-variable-assignments-fn

(defun vl-parse-list-of-variable-assignments-fn (tokstream config)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard (vl-loadconfig-p config)))
  (declare (ignorable config))
  (let ((__function__ 'vl-parse-list-of-variable-assignments))
    (declare (ignorable __function__))
    (seq tokstream
         (first := (vl-parse-variable-assignment))
         (when (vl-is-token? :vl-comma)
               (:= (vl-match))
               (rest := (vl-parse-list-of-net-assignments)))
         (return (cons first rest)))))

Theorem: vl-parse-list-of-variable-assignments-fails-gracefully

(defthm vl-parse-list-of-variable-assignments-fails-gracefully
  (implies (mv-nth 0
                   (vl-parse-list-of-variable-assignments))
           (not (mv-nth 1
                        (vl-parse-list-of-variable-assignments)))))

Theorem: vl-warning-p-of-vl-parse-list-of-variable-assignments

(defthm vl-warning-p-of-vl-parse-list-of-variable-assignments
 (iff
     (vl-warning-p (mv-nth 0
                           (vl-parse-list-of-variable-assignments)))
     (mv-nth 0
             (vl-parse-list-of-variable-assignments))))

Theorem: vl-parse-list-of-variable-assignments-result

(defthm vl-parse-list-of-variable-assignments-result
 (implies
  (and t)
  (and
   (alistp (mv-nth 1
                   (vl-parse-list-of-variable-assignments)))
   (vl-exprlist-p
      (strip-cars (mv-nth 1
                          (vl-parse-list-of-variable-assignments))))
   (vl-exprlist-p
        (strip-cdrs
             (mv-nth 1
                     (vl-parse-list-of-variable-assignments)))))))

Theorem: vl-parse-list-of-variable-assignments-true-listp

(defthm vl-parse-list-of-variable-assignments-true-listp
  (true-listp (mv-nth 1
                      (vl-parse-list-of-variable-assignments)))
  :rule-classes :type-prescription)

Theorem: vl-parse-list-of-variable-assignments-count-strong

(defthm vl-parse-list-of-variable-assignments-count-strong
 (and
  (<=
   (vl-tokstream-measure
        :tokstream (mv-nth 2
                           (vl-parse-list-of-variable-assignments)))
   (vl-tokstream-measure))
  (implies
   (not (mv-nth 0
                (vl-parse-list-of-variable-assignments)))
   (<
    (vl-tokstream-measure
        :tokstream (mv-nth 2
                           (vl-parse-list-of-variable-assignments)))
    (vl-tokstream-measure))))
 :rule-classes ((:rewrite) (:linear)))