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  • Testing-utilities

• Token+span

Token+span->span

Get the span field from a token+span.

Signature

(token+span->span x) → span

Arguments

x — Guard (token+span-p x).

Returns

span — Type (spanp span).

This is an ordinary field accessor created by fty::defprod.

Definitions and Theorems

Function: token+span->span$inline

(defun token+span->span$inline (x)
  (declare (xargs :guard (token+span-p x)))
  (declare (xargs :guard t))
  (let ((__function__ 'token+span->span))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (span-fix (cdr (std::da-nth 1 x))))
         :exec (cdr (std::da-nth 1 x)))))

Theorem: spanp-of-token+span->span

(defthm spanp-of-token+span->span
  (b* ((span (token+span->span$inline x)))
    (spanp span))
  :rule-classes :rewrite)

Theorem: token+span->span$inline-of-token+span-fix-x

(defthm token+span->span$inline-of-token+span-fix-x
  (equal (token+span->span$inline (token+span-fix x))
         (token+span->span$inline x)))

Theorem: token+span->span$inline-token+span-equiv-congruence-on-x

(defthm token+span->span$inline-token+span-equiv-congruence-on-x
  (implies (token+span-equiv x x-equiv)
           (equal (token+span->span$inline x)
                  (token+span->span$inline x-equiv)))
  :rule-classes :congruence)