• Top
  • Documentation
  • Books
  • Boolean-reasoning
  • Projects
  • Debugging
  • Std
  • Proof-automation
  • Macro-libraries
  • ACL2
  • Interfacing-tools
  • Hardware-verification
    • Gl
    • Esim
    • Vl2014
    • Sv
    • Vwsim
    • Fgl
    • Vl
      • Syntax
      • Loader
        • Preprocessor
        • Vl-loadconfig
        • Vl-loadstate
        • Lexer
        • Parser
          • Parse-expressions
          • Parse-udps
          • Parse-statements
          • Parse-property
            • Vl-parse-property-list-of-arguments
            • Vl-parse-sequence-match-item
            • Vl-parse-property-actual-arg
            • Vl-parse-scoped-or-hierarchical-identifier
            • Vl-parse-cycledelayrange
            • Vl-parse-sequence-abbrev
            • Vl-parse-boolean-abbrev
            • Vl-parse-1+-expression-or-dists-separated-by-commas
            • Vl-parse-property-acceptop
            • Vl-parse-dist-item
            • Vl-parse-sequence-match-item-list
            • Vl-parse-property-spec
            • Vl-parse-impl-prop-expr-op
            • Vl-parse-expression-or-dist
            • Vl-parse-dist-list
            • Vl-alternating-propexpr/op-list-p
            • Vl-left-associate-alternating-propexpr/op-list
            • Vl-left-associate-delay-se-tail
            • Vl-delay-se-tail-p
            • Vl-parse-1+-named-property-list-of-arguments
            • Vl-parse-property-low-prec-unary
            • Vl-parse-within-sequence-expr-aux
            • Vl-parse-throughout-sequence-expr
            • Vl-parse-or-property-expr-aux
            • Vl-parse-intersect-sequence-expr-aux
            • Vl-parse-intersect-sequence-expr
            • Vl-parse-delay-sequence-expr
            • Vl-parse-assign-sequence-expr
            • Vl-parse-and-property-expr-aux
            • Vl-parse-1+-property-case-items
            • Vl-parse-within-sequence-expr
            • Vl-parse-or-property-expr
            • Vl-parse-instance-property-expr
            • Vl-parse-iff-property-expr
            • Vl-parse-delay-sequence-expr-tail
            • Vl-parse-and-property-expr
            • Vl-parse-until-property-expr
            • Vl-parse-strength-property-expr
            • Vl-parse-repeat-sequence-expr
            • Vl-parse-property-expr
            • Vl-parse-property-case-item
            • Vl-parse-not-property-expr
            • Vl-parse-impl-property-expr
            • Vl-parse-firstmatch-sequence-expr
          • Vl-genelements
          • Parse-paramdecls
          • Parse-blockitems
          • Parse-utils
          • Parse-insts
          • Parse-functions
          • Parse-assignments
          • Parse-clocking
          • Parse-strengths
          • Vl-parse-genvar-declaration
          • Vl-parse
          • Parse-netdecls
          • Parse-asserts
          • Vl-maybe-parse-lifetime
          • Parse-dpi-import-export
          • Parse-ports
          • Parse-timeunits
          • Seq
          • Parse-packages
          • Parse-eventctrl
        • Vl-load-merge-descriptions
        • Vl-find-basename/extension
        • Vl-load-file
        • Vl-loadresult
        • Scope-of-defines
        • Vl-find-file
        • Vl-flush-out-descriptions
        • Vl-description
        • Vl-read-file
        • Vl-includeskips-report-gather
        • Vl-load-main
        • Extended-characters
        • Vl-load
        • Vl-load-description
        • Vl-descriptions-left-to-load
        • Inject-warnings
        • Vl-preprocess-debug
        • Vl-write-preprocessor-debug-file
        • Vl-read-file-report-gather
        • Vl-load-descriptions
        • Vl-load-files
        • Translate-off
        • Vl-load-read-file-hook
        • Vl-read-file-report
        • Vl-loadstate-pad
        • Vl-load-summary
        • Vl-collect-modules-from-descriptions
        • Vl-loadstate->warnings
        • Vl-iskips-report
        • Vl-descriptionlist
      • Warnings
      • Getting-started
      • Utilities
      • Printer
      • Kit
      • Mlib
      • Transforms
    • X86isa
    • Svl
    • Rtl
  • Software-verification
  • Math
  • Testing-utilities

• Parse-property

Vl-parse-expression-or-dist

Matches expression_or_dist ::= expression [ 'dist' '{' dist_list '}' ].

Signature

(vl-parse-expression-or-dist &key (tokstream 'tokstream) 
                             (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

config — Guard (vl-loadconfig-p config).

Definitions and Theorems

Function: vl-parse-expression-or-dist-fn

(defun vl-parse-expression-or-dist-fn (tokstream config)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard (vl-loadconfig-p config)))
  (declare (ignorable config))
  (let ((__function__ 'vl-parse-expression-or-dist))
    (declare (ignorable __function__))
    (seq tokstream
         (expr := (vl-parse-expression))
         (when (vl-is-token? :vl-kwd-dist)
               (:= (vl-match))
               (:= (vl-match-token :vl-lcurly))
               (dist := (vl-parse-dist-list))
               (:= (vl-match-token :vl-rcurly)))
         (return (make-vl-exprdist :expr expr
                                   :dist dist)))))

Theorem: vl-parse-expression-or-dist-fails-gracefully

(defthm vl-parse-expression-or-dist-fails-gracefully
  (implies (mv-nth 0 (vl-parse-expression-or-dist))
           (not (mv-nth 1 (vl-parse-expression-or-dist)))))

Theorem: vl-warning-p-of-vl-parse-expression-or-dist

(defthm vl-warning-p-of-vl-parse-expression-or-dist
  (iff (vl-warning-p (mv-nth 0 (vl-parse-expression-or-dist)))
       (mv-nth 0 (vl-parse-expression-or-dist))))

Theorem: vl-parse-expression-or-dist-result

(defthm vl-parse-expression-or-dist-result
 (implies
     (and t)
     (equal (vl-exprdist-p (mv-nth 1 (vl-parse-expression-or-dist)))
            (not (mv-nth 0 (vl-parse-expression-or-dist))))))

Theorem: vl-parse-expression-or-dist-count-strong

(defthm vl-parse-expression-or-dist-count-strong
 (and
   (<= (vl-tokstream-measure
            :tokstream (mv-nth 2 (vl-parse-expression-or-dist)))
       (vl-tokstream-measure))
   (implies
        (not (mv-nth 0 (vl-parse-expression-or-dist)))
        (< (vl-tokstream-measure
                :tokstream (mv-nth 2 (vl-parse-expression-or-dist)))
           (vl-tokstream-measure))))
 :rule-classes ((:rewrite) (:linear)))