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Preprocessor-states

Update-ppstate->lexemes-length

Signature
(update-ppstate->lexemes-length length ppstate) → ppstate
Arguments: length — Guard (natp length).
Returns: ppstate — Type (ppstatep ppstate).

Definitions and Theorems

Function: update-ppstate->lexemes-length

(defun update-ppstate->lexemes-length (length ppstate)
  (declare (xargs :stobjs (ppstate)))
  (declare (xargs :guard (natp length)))
  (b* ((ppstate (ppstate-fix ppstate)))
    (raw-update-ppstate->lexemes-length (nfix length)
                                        ppstate)))

Theorem: ppstatep-of-update-ppstate->lexemes-length

(defthm ppstatep-of-update-ppstate->lexemes-length
  (b* ((ppstate (update-ppstate->lexemes-length length ppstate)))
    (ppstatep ppstate))
  :rule-classes :rewrite)

Theorem: update-ppstate->lexemes-length-of-nfix-length

(defthm update-ppstate->lexemes-length-of-nfix-length
  (equal (update-ppstate->lexemes-length (nfix length)
                                         ppstate)
         (update-ppstate->lexemes-length length ppstate)))

Theorem: update-ppstate->lexemes-length-nat-equiv-congruence-on-length

(defthm
      update-ppstate->lexemes-length-nat-equiv-congruence-on-length
 (implies
      (acl2::nat-equiv length length-equiv)
      (equal (update-ppstate->lexemes-length length ppstate)
             (update-ppstate->lexemes-length length-equiv ppstate)))
 :rule-classes :congruence)

Theorem: update-ppstate->lexemes-length-of-ppstate-fix-ppstate

(defthm update-ppstate->lexemes-length-of-ppstate-fix-ppstate
  (equal
       (update-ppstate->lexemes-length length (ppstate-fix ppstate))
       (update-ppstate->lexemes-length length ppstate)))

Theorem: update-ppstate->lexemes-length-ppstate-equiv-congruence-on-ppstate

(defthm
 update-ppstate->lexemes-length-ppstate-equiv-congruence-on-ppstate
 (implies
      (ppstate-equiv ppstate ppstate-equiv)
      (equal (update-ppstate->lexemes-length length ppstate)
             (update-ppstate->lexemes-length length ppstate-equiv)))
 :rule-classes :congruence)