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Expression-component

Make-expression-component

Basic constructor macro for expression-component structures.

Syntax

(make-expression-component [:multi <multi>] 
                           [:index <index>])

This is the usual way to construct expression-component structures. It simply conses together a structure with the specified fields.

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

Definition

This is an ordinary make- macro introduced by fty::defprod.

Macro: make-expression-component

(defmacro make-expression-component (&rest args)
  (std::make-aggregate 'expression-component
                       args '((:multi) (:index))
                       'make-expression-component
                       nil))

Function: expression-component

(defun expression-component (multi index)
  (declare (xargs :guard (and (expressionp multi) (natp index))))
  (declare (xargs :guard t))
  (let ((__function__ 'expression-component))
    (declare (ignorable __function__))
    (b* ((multi (mbe :logic (expression-fix multi)
                     :exec multi))
         (index (mbe :logic (nfix index) :exec index)))
      (cons :component (list multi index)))))