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Expression-struct

Make-expression-struct

Basic constructor macro for expression-struct structures.

Syntax

(make-expression-struct [:type <type>] 
                        [:components <components>])

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

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

Definition

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

Macro: make-expression-struct

(defmacro make-expression-struct (&rest args)
  (std::make-aggregate 'expression-struct
                       args '((:type) (:components))
                       'make-expression-struct
                       nil))

Function: expression-struct

(defun expression-struct (type components)
  (declare (xargs :guard (and (identifierp type)
                              (struct-init-listp components))))
  (declare (xargs :guard t))
  (let ((__function__ 'expression-struct))
    (declare (ignorable __function__))
    (b* ((type (mbe :logic (identifier-fix type)
                    :exec type))
         (components (mbe :logic (struct-init-list-fix components)
                          :exec components)))
      (cons :struct (list type components)))))