• Top
  • Documentation
  • Books
  • Boolean-reasoning
  • Projects
  • Debugging
  • Std
  • Proof-automation
  • Macro-libraries
  • ACL2
  • Interfacing-tools
  • Hardware-verification
    • Gl
    • Esim
    • Vl2014
      • Warnings
      • Primitives
      • Use-set
      • Syntax
      • Getting-started
      • Utilities
      • Loader
        • Preprocessor
        • Vl-loadconfig
        • Lexer
        • Vl-loadstate
        • Parser
          • Parse-expressions
          • Parse-udps
          • Vl-genelements
          • Parse-paramdecls
          • Parse-blockitems
          • Parse-utils
            • Defparser
            • Vl-endinfo-p
            • Vl-match-token
            • Vl-match-some-token
            • Vl-match-any-except
            • Vl-type-of-matched-token
            • Vl-maybe-match-token
            • Vl-tokstream-backup-p
            • Vl-parse-error
            • Vl-match
            • Vl-parse-warning
            • Vl-match-any
            • Vl-current-loc
            • Vl-parse-endblock-name
            • Vl-tokenlist-fix
            • Vl-lookahead-is-some-token?
            • Vl-is-some-token?
            • Vl-is-token?
            • Vl-tokstream-save
            • Vl-tokstream-restore
            • Vl-tokstream-fix
            • Vl-lookahead-is-token?
            • Vl-tokstream->tokens
            • Vl-tokstream-add-warning
            • Vl-tokstream->pstate
            • Expand-defparsers
            • *vl-default-token*
          • Parse-insts
          • Parse-datatype
          • Parse-functions
          • Parse-datatypes
          • Parse-strengths
          • Vl-parse-genvar-declaration
          • Vl-parse
          • Parse-ports
          • Seq
          • Parse-packages
        • Vl-load-merge-descriptions
        • Scope-of-defines
        • Vl-load-file
        • Vl-flush-out-descriptions
        • Vl-description
        • Vl-loadresult
        • Vl-read-file
        • Vl-find-basename/extension
        • Vl-find-file
        • Vl-read-files
        • Extended-characters
        • Vl-load
        • Vl-load-main
        • Vl-load-description
        • Vl-descriptions-left-to-load
        • Inject-warnings
        • Vl-load-descriptions
        • Vl-load-files
        • Vl-load-summary
        • Vl-collect-modules-from-descriptions
        • Vl-descriptionlist
      • Transforms
      • Lint
      • Mlib
      • Server
      • Kit
      • Printer
      • Esim-vl
      • Well-formedness
    • Sv
    • Vwsim
    • Fgl
    • Vl
    • X86isa
    • Svl
    • Rtl
  • Software-verification
  • Math
  • Testing-utilities

• Parse-utils

Vl-tokstream-save

Signature

(vl-tokstream-save &key (tokstream 'tokstream)) → backup

Returns

backup — Type (vl-tokstream-backup-p backup).

Definitions and Theorems

Function: vl-tokstream-save-fn

(defun vl-tokstream-save-fn (tokstream)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard t))
  (let ((__function__ 'vl-tokstream-save))
    (declare (ignorable __function__))
    (make-vl-tokstream-backup :tokens (vl-tokstream->tokens)
                              :pstate (vl-tokstream->pstate))))

Theorem: vl-tokstream-backup-p-of-vl-tokstream-save

(defthm vl-tokstream-backup-p-of-vl-tokstream-save
  (b* ((backup (vl-tokstream-save-fn tokstream)))
    (vl-tokstream-backup-p backup))
  :rule-classes :rewrite)

Theorem: vl-tokstream-backup->tokens-of-vl-tokstream-save

(defthm vl-tokstream-backup->tokens-of-vl-tokstream-save
  (equal (vl-tokstream-backup->tokens (vl-tokstream-save))
         (vl-tokstream->tokens)))