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• Parser

Parse-*-asm-qualifier

Parse zero or more assembler qualifiers.

Signature

(parse-*-asm-qualifier parstate) 
  → 
(mv erp quals span new-parstate)

Arguments

parstate — Guard (parstatep parstate).

Returns

quals — Type (asm-qual-listp quals).

span — Type (spanp span).

new-parstate — Type (parstatep new-parstate), given (parstatep parstate).

That is, parse a *asm-qualifier, in ABNF notation.

If there are no assembler qualifiers, we return an irrelevant span, which the caller does not use.

Definitions and Theorems

Function: parse-*-asm-qualifier

(defun parse-*-asm-qualifier (parstate)
  (declare (xargs :stobjs (parstate)))
  (declare (xargs :guard (parstatep parstate)))
  (let ((__function__ 'parse-*-asm-qualifier))
    (declare (ignorable __function__))
    (b* (((reterr) nil (irr-span) parstate)
         ((erp token span parstate)
          (read-token parstate))
         ((unless (token-asm-qualifier-p token))
          (b* ((parstate (if token (unread-token parstate)
                           parstate)))
            (retok nil (irr-span) parstate)))
         (qual (token-to-asm-qualifier token))
         ((erp quals last-span parstate)
          (parse-*-asm-qualifier parstate)))
      (retok (cons qual quals)
             (if quals (span-join span last-span)
               span)
             parstate))))

Theorem: asm-qual-listp-of-parse-*-asm-qualifier.quals

(defthm asm-qual-listp-of-parse-*-asm-qualifier.quals
  (b* (((mv acl2::?erp ?quals ?span ?new-parstate)
        (parse-*-asm-qualifier parstate)))
    (asm-qual-listp quals))
  :rule-classes :rewrite)

Theorem: spanp-of-parse-*-asm-qualifier.span

(defthm spanp-of-parse-*-asm-qualifier.span
  (b* (((mv acl2::?erp ?quals ?span ?new-parstate)
        (parse-*-asm-qualifier parstate)))
    (spanp span))
  :rule-classes :rewrite)

Theorem: parstatep-of-parse-*-asm-qualifier.new-parstate

(defthm parstatep-of-parse-*-asm-qualifier.new-parstate
  (implies (parstatep parstate)
           (b* (((mv acl2::?erp ?quals ?span ?new-parstate)
                 (parse-*-asm-qualifier parstate)))
             (parstatep new-parstate)))
  :rule-classes :rewrite)

Theorem: parsize-of-parse-*-asm-qualifier-uncond

(defthm parsize-of-parse-*-asm-qualifier-uncond
  (b* (((mv acl2::?erp ?quals ?span ?new-parstate)
        (parse-*-asm-qualifier parstate)))
    (<= (parsize new-parstate)
        (parsize parstate)))
  :rule-classes :linear)