0.8.1.36:

[sbcl.git] / src / code / deftypes-for-target.lisp

diff --git a/src/code/deftypes-for-target.lisp b/src/code/deftypes-for-target.lisp
index 6c9ae10..0928858 100644 (file)
--- a/src/code/deftypes-for-target.lisp
+++ b/src/code/deftypes-for-target.lisp
@@ -54,7 +54,7 @@
 
 (sb!xc:deftype extended-char ()
   #!+sb-doc
-  "Type of characters that aren't base-char's. None in CMU CL."
+  "Type of CHARACTERs that aren't BASE-CHARs."
   '(and character (not base-char)))
 
 (sb!xc:deftype standard-char ()
@@ -87,10 +87,12 @@
   `(simple-array base-char (,size)))
 (sb!xc:deftype string (&optional size)
   `(or (array character (,size))
-           (base-string ,size)))
+       (array nil (,size))
+       (base-string ,size)))
 (sb!xc:deftype simple-string (&optional size)
   `(or (simple-array character (,size))
-           (simple-base-string ,size)))
+       (simple-array nil (,size))
+       (simple-base-string ,size)))
 
 (sb!xc:deftype bit-vector (&optional size)
   `(array bit (,size)))
@@ -101,8 +103,14 @@
 ;;;; some private types that we use in defining the standard functions,
 ;;;; or implementing declarations in standard compiler transforms
 
-;;; a type specifier
-(sb!xc:deftype type-specifier () '(or list symbol sb!xc:class))
+;;; semistandard types
+(sb!xc:deftype generalized-boolean () t)
+
+(sb!xc:deftype format-control ()
+  '(or string function))
+
+(sb!xc:deftype restart-designator ()
+  '(or (and symbol (not null)) restart))
 
 ;;; array rank, total size...
 (sb!xc:deftype array-rank () `(integer 0 (,sb!xc:array-rank-limit)))
@@ -150,6 +158,10 @@
 ;;; used in the ANSI spec (if this is in fact exactly the same thing)
 (sb!xc:deftype streamlike () '(or stream (member nil t)))
 
+;;; an object suitable for input to standard functions that accept
+;;; "environment objects" (of the ANSI glossary)
+(sb!xc:deftype lexenv-designator () '(or lexenv null))
+
 ;;; a thing that can be passed to FUNCALL & friends
 ;;;
 ;;; FIXME: should be FUNCTION-DESIGNATOR?