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• Parser-messages

Position-to-msg

Represent a position as a message.

Signature

(position-to-msg pos) → msg

Arguments

pos — Guard (positionp pos).

Returns

msg — Type (msgp msg).

This is used in user-oriented error messages.

Definitions and Theorems

Function: position-to-msg

(defun position-to-msg (pos)
  (declare (xargs :guard (positionp pos)))
  (msg "(line ~x0, column ~x1)"
       (position->line pos)
       (position->column pos)))

Theorem: msgp-of-position-to-msg

(defthm msgp-of-position-to-msg
  (b* ((msg (position-to-msg pos)))
    (msgp msg))
  :rule-classes :rewrite)

Theorem: position-to-msg-of-position-fix-pos

(defthm position-to-msg-of-position-fix-pos
  (equal (position-to-msg (position-fix pos))
         (position-to-msg pos)))

Theorem: position-to-msg-position-equiv-congruence-on-pos

(defthm position-to-msg-position-equiv-congruence-on-pos
  (implies (position-equiv pos pos-equiv)
           (equal (position-to-msg pos)
                  (position-to-msg pos-equiv)))
  :rule-classes :congruence)