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Expr-paren

Make-expr-paren

Basic constructor macro for expr-paren structures.

Syntax

(make-expr-paren [:inner <inner>])

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

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

Definition

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

Macro: make-expr-paren

(defmacro make-expr-paren (&rest args)
  (std::make-aggregate 'expr-paren
                       args '((:inner))
                       'make-expr-paren
                       nil))

Function: expr-paren

(defun expr-paren (inner)
  (declare (xargs :guard (exprp inner)))
  (declare (xargs :guard t))
  (b* ((inner (mbe :logic (expr-fix inner)
                   :exec inner)))
    (cons :paren inner)))