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• Preprocessor

Vl-process-endif

Handler for endif directives.

Signature

(vl-process-endif loc istack activep) 
  → 
(mv successp new-istack new-activep)

Arguments

loc — Guard (vl-location-p loc).

istack — Guard (vl-istack-p istack).

activep — Guard (booleanp activep).

Returns

successp — Type (booleanp successp).

new-istack — Type (vl-istack-p new-istack), given (force (vl-istack-p istack)).

new-activep — Type (booleanp new-activep), given (booleanp activep).

Definitions and Theorems

Function: vl-process-endif

(defun vl-process-endif (loc istack activep)
 (declare (xargs :guard (and (vl-location-p loc)
                             (vl-istack-p istack)
                             (booleanp activep))))
 (let ((__function__ 'vl-process-endif))
  (declare (ignorable __function__))
  (b*
   (((when (atom istack))
     (mv
      (cw
       "Preprocessor error (~s0): found an `endif, but no ifdef/ifndef ~
                 is open.~%"
       (vl-location-string loc))
      istack activep))
    (new-istack (cdr istack))
    (new-activep (vl-iframe->initially-activep (car istack))))
   (mv t new-istack (and new-activep t)))))

Theorem: booleanp-of-vl-process-endif.successp

(defthm booleanp-of-vl-process-endif.successp
  (b* (((mv ?successp ?new-istack ?new-activep)
        (vl-process-endif loc istack activep)))
    (booleanp successp))
  :rule-classes :type-prescription)

Theorem: vl-istack-p-of-vl-process-endif.new-istack

(defthm vl-istack-p-of-vl-process-endif.new-istack
  (implies (force (vl-istack-p istack))
           (b* (((mv ?successp ?new-istack ?new-activep)
                 (vl-process-endif loc istack activep)))
             (vl-istack-p new-istack)))
  :rule-classes :rewrite)

Theorem: booleanp-of-vl-process-endif.new-activep

(defthm booleanp-of-vl-process-endif.new-activep
  (implies (booleanp activep)
           (b* (((mv ?successp ?new-istack ?new-activep)
                 (vl-process-endif loc istack activep)))
             (booleanp new-activep)))
  :rule-classes :type-prescription)