0.8.16.25:

[sbcl.git] / src / compiler / macros.lisp

diff --git a/src/compiler/macros.lisp b/src/compiler/macros.lisp
index 4378621..7016312 100644 (file)
--- a/src/compiler/macros.lisp
+++ b/src/compiler/macros.lisp
@@ -259,14 +259,14 @@
 
 ;;; Given a DEFTRANSFORM-style lambda-list, generate code that parses
 ;;; the arguments of a combination with respect to that
-;;; lambda-list. BODY is the the list of forms which are to be
+;;; lambda-list. BODY is the list of forms which are to be
 ;;; evaluated within the bindings. ARGS is the variable that holds
 ;;; list of argument lvars. ERROR-FORM is a form which is evaluated
 ;;; when the syntax of the supplied arguments is incorrect or a
 ;;; non-constant argument keyword is supplied. Defaults and other gunk
 ;;; are ignored. The second value is a list of all the arguments
 ;;; bound. We make the variables IGNORABLE so that we don't have to
-;;; manually declare them Ignore if their only purpose is to make the
+;;; manually declare them IGNORE if their only purpose is to make the
 ;;; syntax work.
 (defun parse-deftransform (lambda-list body args error-form)
   (multiple-value-bind (req opt restp rest keyp keys allowp)
@@ -508,7 +508,8 @@
            ,(parse-deftransform lambda-list body n-args
                                 `(return-from ,name nil))))
        ,@(when (consp what)
-           `((setf (,(symbolicate "FUN-INFO-" (second what))
+           `((setf (,(let ((*package* (symbol-package 'sb!c::fun-info)))
+                        (symbolicate "FUN-INFO-" (second what)))
                     (fun-info-or-lose ',(first what)))
                    #',name)))))))
 \f
@@ -943,3 +944,29 @@
 (defmacro position-or-lose (&rest args)
   `(or (position ,@args)
        (error "shouldn't happen?")))
+
+;;; user-definable compiler io syntax
+
+;;; We use WITH-SANE-IO-SYNTAX to provide safe defaults, and provide
+;;; *COMPILER-PRINT-VARIABLE-ALIST* for user customization.
+(defvar *compiler-print-variable-alist* nil
+  #!+sb-doc
+  "an association list describing new bindings for special variables
+to be used by the compiler for error-reporting, etc. Eg.
+
+ ((*PRINT-LENGTH* . 10) (*PRINT-LEVEL* . 6) (*PRINT-PRETTY* . NIL))
+
+The variables in the CAR positions are bound to the values in the CDR
+during the execution of some debug commands. When evaluating arbitrary
+expressions in the debugger, the normal values of the printer control
+variables are in effect.
+
+Initially empty, *COMPILER-PRINT-VARIABLE-ALIST* is Typically used to
+specify bindings for printer control variables.")
+
+(defmacro with-compiler-io-syntax (&body forms)
+  `(with-sane-io-syntax
+    (progv
+        (nreverse (mapcar #'car *compiler-print-variable-alist*))
+        (nreverse (mapcar #'cdr *compiler-print-variable-alist*))
+      ,@forms)))