Check and size a range-select expression in an unpacked type context.
(vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings) → (mv successp new-x new-warnings)
Function:
(defun vl-arrayslice-expr-size-assigncontext (lhs-type x ss ctx warnings) (declare (xargs :guard (and (vl-datatype-p lhs-type) (vl-expr-p x) (vl-scopestack-p ss) (vl-context-p ctx) (vl-warninglist-p warnings)))) (declare (xargs :guard (and (not (vl-atom-p x)) (member (vl-nonatom->op x) '(:vl-select-colon :vl-select-pluscolon :vl-select-minuscolon :vl-partselect-colon :vl-partselect-pluscolon :vl-partselect-minuscolon))))) (let ((__function__ 'vl-arrayslice-expr-size-assigncontext)) (declare (ignorable __function__)) (b* ((x (vl-expr-fix x)) (ctx (vl-context-fix ctx)) ((mv warning type) (vl-partselect-expr-type x ss ctx)) ((when warning) (mv nil x (cons warning (ok)))) (x-udims (vl-datatype->udims type)) ((unless (consp x-udims)) (mv nil x (warn :type :vl-assignpattern-elim-fail :msg (if (consp (vl-datatype->pdims type)) "~a0: Can't assign packed array select ~a1 in an ~ unpacked type context" "~a0: Can't apply select operator to non-array: ~a1") :args (list ctx x)))) (lhs-udims (vl-datatype->udims lhs-type)) ((unless (consp lhs-udims)) (mv nil x (warn :type :vl-assignpattern-elim-fail :msg "~a0: Can't assign array select ~a1 in a ~ non-unpacked-array type context" :args (list ctx x)))) ((unless (equal (vl-datatype-update-udims (cdr x-udims) type) (vl-datatype-update-udims (cdr lhs-udims) lhs-type))) (mv nil x (warn :type :vl-assignpattern-elim-fail :msg "~a0: Incompatible types for unpacked array slice ~ assignment (~a1): lhs type ~a2, rhs type ~a3" :args (list ctx x (vl-datatype-fix lhs-type) type)))) ((unless (and (not (eq (car lhs-udims) :vl-unsized-dimension)) (vl-range-resolved-p (car lhs-udims)) (not (eq (car x-udims) :vl-unsized-dimension)) (vl-range-resolved-p (car x-udims)))) (mv nil x (warn :type :vl-assignpattern-elim-fail :msg "~a0: Can't assign array slice ~a1 because datatype ~ dimensions are unresolved: lhs ~a2, rhs ~a3" :args (list ctx x (vl-datatype-fix lhs-type) type)))) ((unless (equal (vl-range-size (car lhs-udims)) (vl-range-size (car x-udims)))) (mv nil x (warn :type :vl-assignpattern-elim-fail :msg "~a0: Can't assign array slice ~a1 because datatype ~ dimensions differ: lhs ~a2, rhs ~a3" :args (list ctx x (vl-datatype-fix lhs-type) type))))) (mv t x (ok)))))
Theorem:
(defthm booleanp-of-vl-arrayslice-expr-size-assigncontext.successp (b* (((mv ?successp ?new-x ?new-warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings))) (booleanp successp)) :rule-classes :type-prescription)
Theorem:
(defthm vl-expr-p-of-vl-arrayslice-expr-size-assigncontext.new-x (b* (((mv ?successp ?new-x ?new-warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings))) (vl-expr-p new-x)) :rule-classes :rewrite)
Theorem:
(defthm vl-warninglist-p-of-vl-arrayslice-expr-size-assigncontext.new-warnings (b* (((mv ?successp ?new-x ?new-warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings))) (vl-warninglist-p new-warnings)) :rule-classes :rewrite)
Theorem:
(defthm vl-expr-selfsize-of-vl-arrayslice-expr-size-assigncontext (b* (((mv ok new-x &) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings)) ((mv warning typesize) (vl-datatype-size lhs-type)) ((mv & selfsize) (vl-expr-selfsize new-x ss ctx2 warnings2))) (implies (and ok (not warning) (not (vl-atom-p x))) (equal selfsize typesize))))
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-of-vl-datatype-fix-lhs-type (equal (vl-arrayslice-expr-size-assigncontext (vl-datatype-fix lhs-type) x ss ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings)))
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-vl-datatype-equiv-congruence-on-lhs-type (implies (vl-datatype-equiv lhs-type lhs-type-equiv) (equal (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type-equiv x ss ctx warnings))) :rule-classes :congruence)
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-of-vl-expr-fix-x (equal (vl-arrayslice-expr-size-assigncontext lhs-type (vl-expr-fix x) ss ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings)))
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-vl-expr-equiv-congruence-on-x (implies (vl-expr-equiv x x-equiv) (equal (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x-equiv ss ctx warnings))) :rule-classes :congruence)
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-of-vl-scopestack-fix-ss (equal (vl-arrayslice-expr-size-assigncontext lhs-type x (vl-scopestack-fix ss) ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings)))
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-vl-scopestack-equiv-congruence-on-ss (implies (vl-scopestack-equiv ss ss-equiv) (equal (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss-equiv ctx warnings))) :rule-classes :congruence)
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-of-vl-context-fix-ctx (equal (vl-arrayslice-expr-size-assigncontext lhs-type x ss (vl-context-fix ctx) warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings)))
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-vl-context-equiv-congruence-on-ctx (implies (vl-context-equiv ctx ctx-equiv) (equal (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx-equiv warnings))) :rule-classes :congruence)
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-of-vl-warninglist-fix-warnings (equal (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx (vl-warninglist-fix warnings)) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings)))
Theorem:
(defthm vl-arrayslice-expr-size-assigncontext-vl-warninglist-equiv-congruence-on-warnings (implies (vl-warninglist-equiv warnings warnings-equiv) (equal (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings) (vl-arrayslice-expr-size-assigncontext lhs-type x ss ctx warnings-equiv))) :rule-classes :congruence)