;;; (This is also what shows up as an ENVIRONMENT value in macroexpansion.)
#!-sb-fluid (declaim (inline internal-make-lexenv)) ; only called in one place
(def!struct (lexenv
- (:constructor make-null-lexenv ())
- (:constructor make-null-interactive-lexenv
- (&aux (policy (list '(safety . 3)
- '(compilation-speed . 2)
- '(debug . 2)
- '(speed . 1)
- '(space . 1)
- '(inhibit-warnings . 1)))))
+ (:print-function print-lexenv)
+ (:constructor make-null-lexenv ())
(:constructor internal-make-lexenv
(funs vars blocks tags
type-restrictions
(null (make-null-lexenv))
(lexenv x)))
+(defun null-lexenv-p (lexenv)
+ (equalp (coerce-to-lexenv lexenv) (make-null-lexenv)))
+
+(defun print-lexenv (lexenv stream level)
+ (if (null-lexenv-p lexenv)
+ (print-unreadable-object (lexenv stream)
+ (write-string "NULL-LEXENV" stream))
+ (default-structure-print lexenv stream level)))
+
(defun maybe-inline-syntactic-closure (lambda lexenv)
(declare (type list lambda) (type lexenv lexenv))
(aver (eql (first lambda) 'lambda))