• 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-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-port-types
            • Creating-portdecls/vardecls
            • Verilog-2005-ports
            • Sv-non-ansi-portdecls
            • Vl-parse-ansi-port-declaration-2005
            • Vl-parse-1+-port-declarations-separated-by-commas-2005
            • Vl-parse-ansi-port-declaration
            • Vl-parse-1+-ansi-port-declarations
            • Verilog-2005-portdecls
          • 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-ports

Vl-parse-ansi-port-declaration

Matches ansi_port_declaration. Peeks at the token after to make sure it's a comma or right paren, but doesn't consume it.

Signature

(vl-parse-ansi-port-declaration atts &key (tokstream 'tokstream) 
                                (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

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

Definitions and Theorems

Function: vl-parse-ansi-port-declaration-fn

(defun vl-parse-ansi-port-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-ansi-port-declaration))
  (declare (ignorable __function__))
  (seq
   tokstream
   (dir := (vl-parse-optional-port-direction))
   (nettype := (vl-parse-optional-nettype))
   (var := (vl-parse-optional-var-kwd))
   (return-raw
        (b* (((when (or dir nettype var))
              (vl-parse-ansi-regular-portdecl atts dir nettype var))
             ((when (vl-is-token? :vl-kwd-interface))
              (vl-parse-error
                   "BOZO implement explicit 'interface' ports."))
             (backup (vl-tokstream-save))
             ((mv err3 port tokstream)
              (vl-parse-ansi-interface-portdecl atts))
             ((unless err3) (mv nil port tokstream))
             (pos3 (vl-tokstream->position))
             (tokstream (vl-tokstream-restore backup))
             ((mv err port tokstream)
              (vl-parse-ansi-regular-portdecl atts dir nettype var))
             ((unless err) (mv nil port tokstream))
             (pos (vl-tokstream->position))
             (tokstream (vl-tokstream-restore backup))
             ((mv pos err)
              (vl-choose-parse-error pos err pos3 err3))
             (tokstream (vl-tokstream-update-position pos)))
          (mv err nil tokstream))))))

Theorem: vl-parse-ansi-port-declaration-fails-gracefully

(defthm vl-parse-ansi-port-declaration-fails-gracefully
  (implies (mv-nth 0 (vl-parse-ansi-port-declaration atts))
           (not (mv-nth 1
                        (vl-parse-ansi-port-declaration atts)))))

Theorem: vl-warning-p-of-vl-parse-ansi-port-declaration

(defthm vl-warning-p-of-vl-parse-ansi-port-declaration
  (iff (vl-warning-p (mv-nth 0
                             (vl-parse-ansi-port-declaration atts)))
       (mv-nth 0
               (vl-parse-ansi-port-declaration atts))))

Theorem: vl-parse-ansi-port-declaration-result

(defthm vl-parse-ansi-port-declaration-result
 (implies
      (and (force (vl-atts-p atts)))
      (equal (vl-ansi-portdecl-p
                  (mv-nth 1
                          (vl-parse-ansi-port-declaration atts)))
             (not (mv-nth 0
                          (vl-parse-ansi-port-declaration atts))))))

Theorem: vl-parse-ansi-port-declaration-count-strong

(defthm vl-parse-ansi-port-declaration-count-strong
 (and
  (<=
     (vl-tokstream-measure
          :tokstream (mv-nth 2
                             (vl-parse-ansi-port-declaration atts)))
     (vl-tokstream-measure))
  (implies
   (not (mv-nth 0
                (vl-parse-ansi-port-declaration atts)))
   (<
     (vl-tokstream-measure
          :tokstream (mv-nth 2
                             (vl-parse-ansi-port-declaration atts)))
     (vl-tokstream-measure))))
 :rule-classes ((:rewrite) (:linear)))