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Expr-predec

Make-expr-predec

Basic constructor macro for expr-predec structures.

Syntax

(make-expr-predec [:arg <arg>])

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

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

Definition

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

Macro: make-expr-predec

(defmacro make-expr-predec (&rest args)
  (std::make-aggregate 'expr-predec
                       args '((:arg))
                       'make-expr-predec
                       nil))

Function: expr-predec

(defun expr-predec (arg)
  (declare (xargs :guard (exprp arg)))
  (declare (xargs :guard t))
  (let ((__function__ 'expr-predec))
    (declare (ignorable __function__))
    (b* ((arg (mbe :logic (expr-fix arg) :exec arg)))
      (cons :predec (list arg)))))