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Expression-cond

Make-expression-cond

Basic constructor macro for expression-cond structures.

Syntax

(make-expression-cond [:branches <branches>])

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

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

Definition

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

Macro: make-expression-cond

(defmacro make-expression-cond (&rest args)
  (std::make-aggregate 'expression-cond
                       args '((:branches))
                       'make-expression-cond
                       nil))

Function: expression-cond

(defun expression-cond (branches)
  (declare (xargs :guard (branch-listp branches)))
  (declare (xargs :guard t))
  (let ((__function__ 'expression-cond))
    (declare (ignorable __function__))
    (b* ((branches (mbe :logic (branch-list-fix branches)
                        :exec branches)))
      (cons :cond (list branches)))))