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Read-file-objects

Read-object-all

(read-object-all channel state) reads all remaining objects from a file.

This is the main loop inside read-file-objects. It reads everything in the file, but doesn't handle opening or closing the file.

Definitions and Theorems

Function: tr-read-object-all

(defun tr-read-object-all (channel state acc)
 (declare (xargs :guard (and (state-p state)
                             (symbolp channel)
                             (open-input-channel-p channel
                                                   :object state))))
 (b* (((unless (mbt (state-p state)))
       (mv acc state))
      ((mv eofp obj state)
       (read-object channel state))
      ((when eofp) (mv acc state)))
   (tr-read-object-all channel state (cons obj acc))))

Function: read-object-all

(defun read-object-all (channel state)
 (declare (xargs :guard (and (state-p state)
                             (symbolp channel)
                             (open-input-channel-p channel
                                                   :object state))))
 (mbe :logic
      (b* (((unless (state-p state))
            (mv nil state))
           ((mv eofp obj state)
            (read-object channel state))
           ((when eofp) (mv nil state))
           ((mv rest state)
            (read-object-all channel state)))
        (mv (cons obj rest) state))
      :exec
      (b* (((mv acc state)
            (tr-read-object-all channel state nil)))
        (mv (reverse acc) state))))

Theorem: tr-read-object-all-removal

(defthm tr-read-object-all-removal
  (equal (tr-read-object-all channel state nil)
         (mv (rev (mv-nth 0 (read-object-all channel state)))
             (mv-nth 1 (read-object-all channel state)))))

Theorem: true-listp-of-read-object-all

(defthm true-listp-of-read-object-all
  (true-listp (mv-nth 0 (read-object-all channel state)))
  :rule-classes :type-prescription)

Theorem: state-p1-of-read-object-all

(defthm state-p1-of-read-object-all
  (implies (and (force (state-p1 state))
                (force (symbolp channel))
                (force (open-input-channel-p1 channel
                                              :object state)))
           (state-p1 (mv-nth 1 (read-object-all channel state)))))

Theorem: open-input-channel-p1-of-read-object-all

(defthm open-input-channel-p1-of-read-object-all
 (implies (and (force (state-p1 state))
               (force (symbolp channel))
               (force (open-input-channel-p1 channel
                                             :object state)))
          (open-input-channel-p1
               channel
               :object (mv-nth 1 (read-object-all channel state)))))