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Binding

Make-binding

Basic constructor macro for binding structures.

Syntax

(make-binding [:var <var>] 
              [:expr <expr>] 
              [:type <type>])

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

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

Definition

This is an ordinary make- macro introduced by defprod.

Macro: make-binding

(defmacro make-binding (&rest args)
  (std::make-aggregate 'binding
                       args '((:var) (:expr) (:type))
                       'make-binding
                       nil))

Function: binding

(defun binding (var expr type)
  (declare (xargs :guard (and (symbolp var)
                              (pseudo-termp expr)
                              (symbolp type))))
  (declare (xargs :guard t))
  (let ((acl2::__function__ 'binding))
    (declare (ignorable acl2::__function__))
    (b* ((var (mbe :logic (symbol-fix var) :exec var))
         (expr (mbe :logic (pseudo-term-fix expr)
                    :exec expr))
         (type (mbe :logic (symbol-fix type)
                    :exec type)))
      (list (cons 'var var)
            (cons 'expr expr)
            (cons 'type type)))))