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Expr-comma

Make-expr-comma

Basic constructor macro for expr-comma structures.

Syntax

(make-expr-comma [:first <first>] 
                 [:next <next>])

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

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

Definition

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

Macro: make-expr-comma

(defmacro make-expr-comma (&rest args)
  (std::make-aggregate 'expr-comma
                       args '((:first) (:next))
                       'make-expr-comma
                       nil))

Function: expr-comma

(defun expr-comma (first next)
  (declare (xargs :guard (and (exprp first) (exprp next))))
  (declare (xargs :guard t))
  (let ((__function__ 'expr-comma))
    (declare (ignorable __function__))
    (b* ((first (mbe :logic (expr-fix first)
                     :exec first))
         (next (mbe :logic (expr-fix next)
                    :exec next)))
      (cons :comma (list first next)))))