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Svex/index

Make-svex/index

Basic constructor macro for svex/index structures.

Syntax

(make-svex/index [:expr <expr>] 
                 [:idx <idx>])

This is the usual way to construct svex/index structures. It simply conses together a structure with the specified fields.

This macro generates a new svex/index structure from scratch. See also change-svex/index, which can "change" an existing structure, instead.

Definition

This is an ordinary make- macro introduced by defprod.

Macro: make-svex/index

(defmacro make-svex/index (&rest args)
  (std::make-aggregate 'svex/index
                       args '((:expr) (:idx))
                       'make-svex/index
                       nil))

Function: svex/index

(defun svex/index (expr idx)
  (declare (xargs :guard (and (svex-p expr) (integerp idx))))
  (declare (xargs :guard t))
  (let ((__function__ 'svex/index))
    (declare (ignorable __function__))
    (b* ((expr (mbe :logic (svex-fix expr) :exec expr))
         (idx (mbe :logic (ifix idx) :exec idx)))
      (std::prod-hons expr idx))))