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• Loader

Vl-read-files

Read an entire list of files into a list of extended characters.

Signature

(vl-read-files filenames &key (state 'state)) 
  → 
(mv errmsg? data state)

Arguments

filenames — The files to read.
    Guard (string-listp filenames).

Returns

errmsg? — NIL on success, or an error msg that says which file we were unable to read, otherwise.

data — On success, extended characters from all files, in order.
    Type (vl-echarlist-p data), given the guard.

state — Type (state-p1 state), given (force (state-p1 state)).

Definitions and Theorems

Function: vl-read-files-fn

(defun vl-read-files-fn (filenames state)
 (declare (xargs :stobjs (state)))
 (declare (xargs :guard (string-listp filenames)))
 (let ((__function__ 'vl-read-files))
  (declare (ignorable __function__))
  (mbe
      :logic
      (b* (((when (atom filenames))
            (mv nil nil state))
           ((mv okp first state)
            (vl-read-file (car filenames)))
           ((unless okp)
            (mv (msg "Error reading file ~s0."
                     (car filenames))
                nil state))
           ((mv okp rest state)
            (vl-read-files (cdr filenames))))
        (mv okp (append first rest) state))
      :exec (with-local-stobj
                 nrev
                 (mv-let (errmsg echars nrev state)
                         (b* (((mv errmsg nrev state)
                               (vl-read-files-aux filenames nrev))
                              ((mv echars nrev) (nrev-finish nrev)))
                           (mv errmsg echars nrev state))
                   (mv errmsg echars state))))))

Theorem: vl-echarlist-p-of-vl-read-files.data

(defthm vl-echarlist-p-of-vl-read-files.data
  (implies (and (force (state-p state))
                (force (string-listp filenames)))
           (b* (((mv ?errmsg? ?data acl2::?state)
                 (vl-read-files-fn filenames state)))
             (vl-echarlist-p data)))
  :rule-classes :rewrite)

Theorem: state-p1-of-vl-read-files.state

(defthm state-p1-of-vl-read-files.state
  (implies (force (state-p1 state))
           (b* (((mv ?errmsg? ?data acl2::?state)
                 (vl-read-files-fn filenames state)))
             (state-p1 state)))
  :rule-classes :rewrite)

Theorem: true-listp-of-vl-read-files

(defthm true-listp-of-vl-read-files
  (true-listp (mv-nth 1 (vl-read-files filenames)))
  :rule-classes :type-prescription)

Theorem: vl-read-files-aux-redef

(defthm vl-read-files-aux-redef
  (equal (vl-read-files-aux filenames acc)
         (b* (((mv errmsg data state)
               (vl-read-files filenames)))
           (mv errmsg (append acc data) state))))

Subtopics

Vl-read-files-aux

Tail recursive loop for vl-read-files.