src/code/type-init.lisp

   1 ;;;; When this file's top level forms are run, it precomputes the
   2 ;;;; translations for commonly used type specifiers. This stuff is
   3 ;;;; split off from the other type stuff to get around problems with
   4 ;;;; everything needing to be loaded before everything else. This is
   5 ;;;; the first file which really exercises the type stuff. This stuff
   6 ;;;; is also somewhat implementation-dependent in that implementations
   7 ;;;; may want to precompute other types which are important to them.
   8
   9 ;;;; This software is part of the SBCL system. See the README file for
  10 ;;;; more information.
  11 ;;;;
  12 ;;;; This software is derived from the CMU CL system, which was
  13 ;;;; written at Carnegie Mellon University and released into the
  14 ;;;; public domain. The software is in the public domain and is
  15 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
  16 ;;;; files for more information.
  17
  18 (in-package "SB!KERNEL")
  19
  20 ;;; built-in classes
  21 (/show0 "beginning type-init.lisp")
  22 (dolist (x *built-in-classes*)
  23   (destructuring-bind (name &key (translation nil trans-p) &allow-other-keys)
  24       x
  25     (/show0 "doing class with NAME=..")
  26     (/primitive-print (symbol-name name))
  27     (when trans-p
  28       (/show0 "in TRANS-P case")
  29       (let ((class (class-cell-class (find-class-cell name)))
  30             (type (specifier-type translation)))
  31         (setf (built-in-class-translation class) type)
  32         (setf (info :type :builtin name) type)))))
  33
  34 ;;; numeric types
  35 (/show0 "precomputing numeric types")
  36 (precompute-types '((mod 2) (mod 4) (mod 16) (mod #x100) (mod #x10000)
  37                     (mod #x100000000)
  38                     (unsigned-byte 1) (unsigned-byte 2) (unsigned-byte 4)
  39                     (unsigned-byte 8) (unsigned-byte 16) (unsigned-byte 32)
  40                     (signed-byte 8) (signed-byte 16) (signed-byte 32)))
  41
  42 ;;; built-in symbol type specifiers
  43 (/show0 "precomputing built-in symbol type specifiers")
  44 (precompute-types *!standard-type-names*)
  45
  46 #+sb-xc-host (setf *type-system-initialized* t)
  47
  48 (/show0 "done with type-init.lisp")