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• Vl-datatype

Vl-datatype->pdims

Get the packed dimensions from any datatype.

Signature

(vl-datatype->pdims x) → pdims

Arguments

x — Guard (vl-datatype-p x).

Returns

pdims — Type (vl-dimensionlist-p pdims).

Definitions and Theorems

Function: vl-datatype->pdims

(defun vl-datatype->pdims (x)
       (declare (xargs :guard (vl-datatype-p x)))
       (let ((__function__ 'vl-datatype->pdims))
            (declare (ignorable __function__))
            (vl-datatype-case x
                              :vl-coretype x.pdims
                              :vl-struct x.pdims
                              :vl-union x.pdims
                              :vl-enum x.pdims
                              :vl-usertype x.pdims)))

Theorem: vl-dimensionlist-p-of-vl-datatype->pdims

(defthm vl-dimensionlist-p-of-vl-datatype->pdims
        (b* ((pdims (vl-datatype->pdims x)))
            (vl-dimensionlist-p pdims))
        :rule-classes :rewrite)

Theorem: vl-datatype->pdims-of-vl-datatype-fix-x

(defthm vl-datatype->pdims-of-vl-datatype-fix-x
        (equal (vl-datatype->pdims (vl-datatype-fix x))
               (vl-datatype->pdims x)))

Theorem: vl-datatype->pdims-vl-datatype-equiv-congruence-on-x

(defthm vl-datatype->pdims-vl-datatype-equiv-congruence-on-x
        (implies (vl-datatype-equiv x x-equiv)
                 (equal (vl-datatype->pdims x)
                        (vl-datatype->pdims x-equiv)))
        :rule-classes :congruence)

These are goofy rules: normally we want to normalize things to (vl-datatype->pdims <term>), but if <term> is a call of one of the particular datatype constructors, we'll rewrite the other way so that we can simplify it to just whatever pdims are being given to the constructor.

Theorem: vl-datatype-pdims-when-vl-coretype

(defthm
  vl-datatype-pdims-when-vl-coretype
  (implies
       (vl-datatype-case x :vl-coretype)
       (and (implies (syntaxp (and (consp x)
                                   (eq (car x) 'vl-coretype)))
                     (equal (vl-datatype->pdims x)
                            (vl-coretype->pdims x)))
            (implies (syntaxp (not (and (consp x)
                                        (eq (car x) 'vl-coretype))))
                     (equal (vl-coretype->pdims x)
                            (vl-datatype->pdims x))))))

Theorem: vl-datatype-pdims-when-vl-struct

(defthm
 vl-datatype-pdims-when-vl-struct
 (implies
     (vl-datatype-case x :vl-struct)
     (and (implies (syntaxp (and (consp x) (eq (car x) 'vl-struct)))
                   (equal (vl-datatype->pdims x)
                          (vl-struct->pdims x)))
          (implies (syntaxp (not (and (consp x)
                                      (eq (car x) 'vl-struct))))
                   (equal (vl-struct->pdims x)
                          (vl-datatype->pdims x))))))

Theorem: vl-datatype-pdims-when-vl-union

(defthm
 vl-datatype-pdims-when-vl-union
 (implies
  (vl-datatype-case x :vl-union)
  (and
     (implies (syntaxp (and (consp x) (eq (car x) 'vl-union)))
              (equal (vl-datatype->pdims x)
                     (vl-union->pdims x)))
     (implies (syntaxp (not (and (consp x) (eq (car x) 'vl-union))))
              (equal (vl-union->pdims x)
                     (vl-datatype->pdims x))))))

Theorem: vl-datatype-pdims-when-vl-enum

(defthm
 vl-datatype-pdims-when-vl-enum
 (implies
  (vl-datatype-case x :vl-enum)
  (and
      (implies (syntaxp (and (consp x) (eq (car x) 'vl-enum)))
               (equal (vl-datatype->pdims x)
                      (vl-enum->pdims x)))
      (implies (syntaxp (not (and (consp x) (eq (car x) 'vl-enum))))
               (equal (vl-enum->pdims x)
                      (vl-datatype->pdims x))))))

Theorem: vl-datatype-pdims-when-vl-usertype

(defthm
  vl-datatype-pdims-when-vl-usertype
  (implies
       (vl-datatype-case x :vl-usertype)
       (and (implies (syntaxp (and (consp x)
                                   (eq (car x) 'vl-usertype)))
                     (equal (vl-datatype->pdims x)
                            (vl-usertype->pdims x)))
            (implies (syntaxp (not (and (consp x)
                                        (eq (car x) 'vl-usertype))))
                     (equal (vl-usertype->pdims x)
                            (vl-datatype->pdims x))))))