--- /dev/null
+;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: UFFI -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
+;;;;
+;;;; Name: primitives.cl
+;;;; Purpose: UFFI source to handle immediate types
+;;;; Programmers: Kevin M. Rosenberg and John DeSoi
+;;;; Date Started: Feb 2002
+;;;;
+;;;; $Id: primitives.cl,v 1.1 2002/08/02 14:39:12 kevin Exp $
+;;;;
+;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;; and John DeSoi
+;;;;
+;;;; UFFI users are granted the rights to distribute and use this software
+;;;; as governed by the terms of the Lisp Lesser GNU Public License
+;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
+;;;; *************************************************************************
+
+(declaim (optimize (debug 3) (speed 3) (safety 1) (compilation-speed 0)))
+(in-package :uffi)
+
+; Wrapper for unexported function we have to use
+(defmacro def-mcl-type (name type)
+ `(ccl::def-mactype (quote ,name) (ccl:find-mactype ,type)))
+
+
+(defmacro def-constant (name value &key (export nil))
+ "Macro to define a constant and to export it"
+ `(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defconstant ,name ,value)
+ ,(if export (list 'export `(quote ,name)) (values))))
+
+(defmacro def-type (name type)
+ "Generates a (deftype) statement for CL. Currently, only CMUCL
+supports takes advantage of this optimization."
+ (declare (ignore type))
+ `(deftype ,name () t))
+
+(defmacro null-char-p (val)
+ "Returns T if character is NULL"
+ `(zerop ,val))
+
+
+(defmacro def-foreign-type (name type)
+ `(def-mcl-type ,name (convert-from-uffi-type ,type :type)))
+
+
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defvar +type-conversion-hash+ (make-hash-table :size 20)))
+
+
+(defconstant +type-conversion-list+
+ '((* . :pointer) (:void . :void)
+ (:short . :short)
+ (:pointer-void . :pointer)
+ (:cstring . :string)
+ (:char . :character)
+ (:unsigned-char . :unsigned-byte)
+ (:byte . :byte)
+ (:int . :integer) (:unsigned-int . :unsigned-integer)
+ (:long . :long) (:unsigned-long . :unsigned-long)
+ (:float . :single-float) (:double . :double-float)
+ (:array . :array)))
+
+(dolist (type +type-conversion-list+)
+ (setf (gethash (car type) +type-conversion-hash+) (cdr type)))
+
+
+(defmethod ph (&optional (os *standard-output*))
+ (maphash #'(lambda (k v) (format os "~&~S => ~S" k v)) +type-conversion-hash+))
+
+(defun convert-from-uffi-type (type context)
+ "Converts from a uffi type to an implementation specific type"
+ (if (atom type)
+ (cond
+ #+mcl
+ ((and (eq type :void) (eq context :return)) nil)
+ (t
+ (let ((found-type (gethash type +type-conversion-hash+)))
+ (if found-type
+ found-type
+ type))))
+ (cons (convert-from-uffi-type (first type) context)
+ (convert-from-uffi-type (rest type) context))))
+
+
+
+
+
+