Parse the main variable declaration part of a
(vl-parse-main-data-declaration atts &key (tokstream 'tokstream) (config 'config)) → (mv errmsg? value new-tokstream)
Grammar:
data_declaration ::= ['const'] ['var'] [lifetime] data_type_or_implicit list_of_variable_decl_assignments ';' | ...
Function:
(defun vl-parse-main-data-declaration-fn (atts tokstream config) (declare (xargs :stobjs (tokstream))) (declare (xargs :guard (vl-loadconfig-p config))) (declare (ignorable config)) (declare (xargs :guard (vl-atts-p atts))) (let ((__function__ 'vl-parse-main-data-declaration)) (declare (ignorable __function__)) (seq tokstream (loc := (vl-current-loc)) (when (vl-is-token? :vl-kwd-const) (const := (vl-match))) (when (vl-is-token? :vl-kwd-var) (var := (vl-match))) (lifetime := (vl-maybe-parse-lifetime)) (return-raw (b* ((backup (vl-tokstream-save)) ((mv explicit-err explicit-val tokstream) (seq tokstream (datatype := (vl-parse-datatype)) (assigns := (vl-parse-1+-variable-decl-assignments-separated-by-commas)) (:= (vl-match-token :vl-semi)) (return (vl-build-vardecls :temps assigns :constp (if const t nil) :varp (if var t nil) :lifetime lifetime :type datatype :atts atts :loc loc)))) ((unless explicit-err) (mv explicit-err explicit-val tokstream)) ((unless var) (mv explicit-err explicit-val tokstream)) (tokstream (vl-tokstream-restore backup)) ((mv implicit-err implicit-val tokstream) (seq tokstream (when (vl-is-some-token? '(:vl-kwd-signed :vl-kwd-unsigned)) (signing := (vl-match))) (when (vl-is-token? :vl-lbrack) (dims := (vl-parse-0+-packed-dimensions))) (assigns := (vl-parse-1+-variable-decl-assignments-separated-by-commas)) (:= (vl-match-token :vl-semi)) (return (vl-build-vardecls :temps assigns :constp (if const t nil) :varp (if var t nil) :lifetime lifetime :type (make-vl-coretype :name :vl-logic :signedp (and signing (eq (vl-token->type signing) :vl-kwd-signed)) :pdims dims) :atts atts :loc loc)))) ((unless implicit-err) (mv implicit-err implicit-val tokstream)) (tokstream (vl-tokstream-restore backup))) (mv explicit-err explicit-val tokstream))))))
Theorem:
(defthm vl-parse-main-data-declaration-fails-gracefully (implies (mv-nth 0 (vl-parse-main-data-declaration atts)) (not (mv-nth 1 (vl-parse-main-data-declaration atts)))))
Theorem:
(defthm vl-warning-p-of-vl-parse-main-data-declaration (iff (vl-warning-p (mv-nth 0 (vl-parse-main-data-declaration atts))) (mv-nth 0 (vl-parse-main-data-declaration atts))))
Theorem:
(defthm vl-parse-main-data-declaration-result (implies (and (force (vl-atts-p atts))) (vl-vardecllist-p (mv-nth 1 (vl-parse-main-data-declaration atts)))))
Theorem:
(defthm vl-parse-main-data-declaration-true-listp (true-listp (mv-nth 1 (vl-parse-main-data-declaration atts))) :rule-classes :type-prescription)
Theorem:
(defthm vl-parse-main-data-declaration-count-strong (and (<= (vl-tokstream-measure :tokstream (mv-nth 2 (vl-parse-main-data-declaration atts))) (vl-tokstream-measure)) (implies (not (mv-nth 0 (vl-parse-main-data-declaration atts))) (< (vl-tokstream-measure :tokstream (mv-nth 2 (vl-parse-main-data-declaration atts))) (vl-tokstream-measure)))) :rule-classes ((:rewrite) (:linear)))