(in-package "SB!C")
\f
+;;;; internal utilities defined in terms of INFO
+
;;; Check that NAME is a valid function name, returning the name if
;;; OK, and signalling an error if not. In addition to checking for
;;; basic well-formedness, we also check that symbol names are not NIL
(defun check-fun-name (name)
(typecase name
(list
- (unless (and (consp name) (consp (cdr name))
- (null (cddr name)) (eq (car name) 'setf)
- (symbolp (cadr name)))
+ (unless (legal-fun-name-p name)
(compiler-error "illegal function name: ~S" name)))
(symbol
(when (eq (info :function :kind name) :special-form)
(:function) ; happy case
((nil)) ; another happy case
(:macro ; maybe-not-so-good case
- (compiler-style-warning "~S was previously defined as a macro." name)
+ (compiler-style-warn "~S was previously defined as a macro." name)
(setf (info :function :where-from name) :assumed)
(clear-info :function :macro-function name))))
;; scrubbing old data II: dangling forward references
;;
- ;; (This could happen if someone does PROCLAIM FTYPE in macroexpansion,
- ;; which is bad style, or at compile time, e.g. in EVAL-WHEN (:COMPILE)
- ;; inside something like DEFSTRUCT, in which case it's reasonable style.
- ;; Either way, it's no longer a free function.)
- (when (boundp '*free-functions*) ; when compiling
- (remhash name *free-functions*))
+ ;; (This could happen if someone executes PROCLAIM FTYPE at
+ ;; macroexpansion time, which is bad style, or at compile time, e.g.
+ ;; in EVAL-WHEN (:COMPILE) inside something like DEFSTRUCT, in which
+ ;; case it's reasonable style. Either way, NAME is no longer a free
+ ;; function.)
+ (when (boundp '*free-funs*) ; when compiling
+ (remhash name *free-funs*))
;; recording the ordinary case
(setf (info :function :kind name) :function)
- (note-if-setf-function-and-macro name)
+ (note-if-setf-fun-and-macro name)
(values))
;;; warning. Due to the weak semantics of the (SETF FUNCTION) name, we
;;; can't assume that they aren't just naming a function (SETF FOO)
;;; for the heck of it. NAME is already known to be well-formed.
-(defun note-if-setf-function-and-macro (name)
+(defun note-if-setf-fun-and-macro (name)
(when (consp name)
(when (or (info :setf :inverse name)
(info :setf :expander name))
- (compiler-style-warning
+ (compiler-style-warn
"defining as a SETF function a name that already has a SETF macro:~
~% ~S"
name)))
(setf (info :function :where-from name) :defined)
(if (info :function :assumed-type name)
(setf (info :function :assumed-type name) nil))))
+
+;;; Decode any raw (INFO :FUNCTION :INLINE-EXPANSION-DESIGNATOR FUN-NAME)
+;;; value into a lambda expression, or return NIL if there is none.
+(declaim (ftype (function ((or symbol cons)) list) fun-name-inline-expansion))
+(defun fun-name-inline-expansion (fun-name)
+ (let ((info (info :function :inline-expansion-designator fun-name)))
+ (if (functionp info)
+ (funcall info)
+ info)))
\f
;;;; ANSI Common Lisp functions which are defined in terms of the info
;;;; database
#!+sb-doc
"True of any Lisp object that has a constant value: types that eval to
themselves, keywords, constants, and list whose car is QUOTE."
- ;; FIXME: Should STRUCTURE-OBJECT and/or STANDARD-OBJECT be here?
- ;; They eval to themselves..
- ;;
;; FIXME: Someday it would be nice to make the code recognize foldable
;; functions and call itself recursively on their arguments, so that
;; more of the examples in the ANSI CL definition are recognized.
;; (e.g. (+ 3 2), (SQRT PI), and (LENGTH '(A B C)))
(declare (ignore environment))
(typecase object
- (number t)
- (character t)
- (array t)
;; (Note that the following test on INFO catches KEYWORDs as well as
;; explicitly DEFCONSTANT symbols.)
(symbol (eq (info :variable :kind object) :constant))
- (list (eq (car object) 'quote))))
+ (list (eq (car object) 'quote))
+ (t t)))
(declaim (ftype (function (symbol &optional (or null sb!c::lexenv))) sb!xc:macro-function))
(defun sb!xc:macro-function (symbol &optional env)
else returns NIL. If ENV is unspecified or NIL, use the global
environment only."
(declare (symbol symbol))
- (let* ((fenv (when env (sb!c::lexenv-functions env)))
+ (let* ((fenv (when env (sb!c::lexenv-funs env)))
(local-def (cdr (assoc symbol fenv))))
(cond (local-def
(if (and (consp local-def) (eq (car local-def) 'MACRO))
(defun sb!xc:compiler-macro-function (name &optional env)
#!+sb-doc
- "If NAME names a compiler-macro, returns the expansion function,
- else returns NIL. Note: if the name is shadowed in ENV by a local
- definition, or declared NOTINLINE, NIL is returned. Can be
- set with SETF."
- (let ((found (and env
- (cdr (assoc name (sb!c::lexenv-functions env)
- :test #'equal)))))
- (unless (eq (cond ((sb!c::defined-fun-p found)
- (sb!c::defined-fun-inlinep found))
- (found :notinline)
- (t
- (info :function :inlinep name)))
- :notinline)
- (values (info :function :compiler-macro-function name)))))
-(defun (setf sb!xc:compiler-macro-function) (function name)
+ "If NAME names a compiler-macro in ENV, return the expansion function, else
+ return NIL. Can be set with SETF when ENV is NIL."
+ (declare (ignore env))
+ (legal-fun-name-or-type-error name)
+ ;; Note: CMU CL used to return NIL here when a NOTINLINE declaration
+ ;; was in force. That's fairly logical, given the specified effect
+ ;; of NOTINLINE declarations on compiler-macro expansion. However,
+ ;; (1) it doesn't seem to be consistent with the ANSI spec for
+ ;; COMPILER-MACRO-FUNCTION, and (2) it would give surprising
+ ;; behavior for (SETF (COMPILER-MACRO-FUNCTION FOO) ...) in the
+ ;; presence of a (PROCLAIM '(NOTINLINE FOO)). So we don't do it.
+ (values (info :function :compiler-macro-function name)))
+(defun (setf sb!xc:compiler-macro-function) (function name &optional env)
(declare (type (or symbol list) name)
(type (or function null) function))
+ (when env
+ ;; ANSI says this operation is undefined.
+ (error "can't SETF COMPILER-MACRO-FUNCTION when ENV is non-NIL"))
(when (eq (info :function :kind name) :special-form)
(error "~S names a special form." name))
(setf (info :function :compiler-macro-function name) function)
(symbol (values (info :variable :documentation x)))))
(function
(cond ((functionp x)
- (function-doc x))
+ (%fun-doc x))
((legal-fun-name-p x)
;; FIXME: Is it really right to make
;; (DOCUMENTATION '(SETF FOO) 'FUNCTION) equivalent to
(setf (info :setf :documentation x))
((t)
(typecase x
- (function (function-doc x))
+ (function (%fun-doc x))
(package (package-doc-string x))
(structure-class (values (info :type :documentation (class-name x))))
(symbol (try-cmucl-random-doc x doc-type))))
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