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|
;; Copyright (c) 1991-2002, The Numerical Algorithms Group Ltd.
;; All rights reserved.
;; Copyright (C) 2007-2008, Gabriel Dos Reis.
;; All rights reserved.
;;
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following conditions are
;; met:
;;
;; - Redistributions of source code must retain the above copyright
;; notice, this list of conditions and the following disclaimer.
;;
;; - Redistributions in binary form must reproduce the above copyright
;; notice, this list of conditions and the following disclaimer in
;; the documentation and/or other materials provided with the
;; distribution.
;;
;; - Neither the name of The Numerical Algorithms Group Ltd. nor the
;; names of its contributors may be used to endorse or promote products
;; derived from this software without specific prior written permission.
;;
;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
;; IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
;; TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
;; PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
;; OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
;; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
;; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
;; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
; NAME: Compiler Utilities Package
; PURPOSE: Comp is a modified version of Compile which is a preprocessor for
; calls to Lisp Compile. It searches for variable assignments that use
; (SPADLET a b). It allows you to create local variables without
; declaring them local by moving them into a PROG variable list.
; This is not an ordinary SPADLET. It looks and is used like a SETQ.
; This preprocessor then collects the uses and creates the PROG.
;
; SPADLET is defined in Macro.Lisp.
;
; Comp recognizes as new lambda types the forms ILAM, SPADSLAM, SLAM,
; and entries on $clamList. These cache results. ("Saving LAMbda".)
; If the function is called with EQUAL arguments, returns the previous
; result computed.
;
; The package also causes traced things which are recompiled to
; become untraced.
(IMPORT-MODULE "macros")
(in-package "BOOT")
(defparameter |$compileDontDefineFunctions| 'T)
;;; Common Block section
(defparameter FluidVars nil)
(defparameter LocVars nil)
; (defparameter OptionList nil) defined in nlib.lisp
(defparameter SpecialVars nil)
(defvar $closedfns nil)
;; The following are used mainly in setvars.boot
(defun notEqualLibs (u v)
(if (string= u (library-name v)) (seq (close-library v) t) nil))
(defun |dropInputLibrary| (lib)
;; Close any existing copies of this library on the input path
(setq input-libraries
(delete lib input-libraries :test #'notEqualLibs )))
(defun |openOutputLibrary| (lib)
(|dropInputLibrary| lib)
(setq output-library (open-library lib 't))
(setq input-libraries (cons output-library input-libraries)) )
(defun |addInputLibrary| (lib)
(|dropInputLibrary| lib)
(setq input-libraries (cons (open-library lib) input-libraries)) )
(defun Comp-2 (args &aux name type argl bodyl junk)
(dsetq (NAME (TYPE ARGL . BODYL) . JUNK) args)
(cond (JUNK (MOAN (format nil "******pren error in (~S (~S ...) ...)" NAME TYPE)))
((eq TYPE 'SLAM) (COMP-SLAM NAME ARGL BODYL))
((LASSQ NAME |$clamList|) (|compClam| NAME ARGL BODYL |$clamList|))
((eq TYPE 'SPADSLAM) (COMP-SPADSLAM NAME ARGL BODYL))
((eq TYPE 'ILAM) (COMP-ILAM NAME ARGL BODYL))
((setq BODYL (LIST NAME (CONS TYPE (CONS ARGL BODYL))))
(if |$PrettyPrint| (pprint bodyl))
(if (null $COMPILE) (SAY "No Compilation")
(COMP370 (LIST BODYL)))
NAME)))
;; used to be called POSN - but that interfered with a CCL function
(DEFUN POSN1 (X L) (position x l :test #'equal))
(DEFUN COMP-ILAM (NAME ARGL BODYL)
(let* ((FARGL (NLIST (LENGTH ARGL) '(GENSYM)))
(BODYLP (SUBLISLIS FARGL ARGL BODYL)))
(MAKEPROP NAME 'ILAM T)
(SET NAME (CONS 'LAMBDA (CONS FARGL BODYLP)))
NAME))
(DEFUN COMP-SPADSLAM (NAME ARGL BODYL)
(let* ((AL (INTERNL NAME ";AL"))
(AUXFN (INTERNL NAME ";"))
(G1 (GENSYM))
(G2 (GENSYM))
(U (COND ((NOT ARGL) (LIST NIL NIL (LIST AUXFN)))
((NOT (CDR ARGL))
(LIST (LIST G1) (LIST '|devaluate| G1) (LIST AUXFN G1)))
((LIST G1
(LIST '|devaluateList| G1)
(LIST 'APPLY (LIST 'FUNCTION AUXFN) G1)))))
(ARG (first U))
(ARGTRAN (second U))
(APP (third U))
(LAMEX `(lam ,ARG
(let (,g2)
(cond ,(COND (ARGL `((setq ,g2 (|assoc| ,argtran ,al))
(cdr ,g2)))
((LIST AL)))
,(COND (ARGL
`(t(setq ,al(|cons5|(cons ,argtran
(setq ,g2 ,app))
,al))
,g2))
(`(t (setq ,al ,app)))))))))
(setandfile AL NIL)
(setq U (LIST NAME LAMEX))
(if |$PrettyPrint| (PRETTYPRINT U))
(COMP370 (LIST U))
(setq U (LIST AUXFN (CONS 'LAMBDA (CONS ARGL BODYL))))
(COND (|$PrettyPrint| (PRETTYPRINT U)))
(COMP370 (LIST U))
NAME))
(DEFUN COMP-SLAM (NAME ARGL BODYL)
(let* ((AL (INTERNL NAME ";AL"))
(AUXFN (INTERNL NAME ";"))
(G1 (GENSYM))
(G2 (GENSYM))
(U (COND ((NOT ARGL) `(nil (,auxfn)))
((NOT (CDR ARGL)) `((,g1)(,auxfn ,g1)))
(`(,g1 (applx (function ,auxfn) ,g1)))))
(ARG (CAR U))
(APP (CADR U))
(LAMEX
(LIST 'LAM ARG
(LIST 'PROG (LIST G2)
(LIST 'RETURN
(LIST 'COND
(COND (ARGL
`((setq ,G2 (|assoc| ,G1 ,AL))
(CDR ,G2)))
((LIST AL)))
(COND (ARGL (LIST ''T `(setq ,G2 ,APP)
(LIST 'SETQ AL
`(CONS
(CONS ,G1 ,G2) ,AL))
G2))
((LIST ''T `(setq ,AL ,APP))))))))))
(set AL NIL)
(setq U (LIST NAME LAMEX))
(if |$PrettyPrint| (PRETTYPRINT U))
(COMP370 (LIST U))
(setq U (LIST AUXFN (CONS 'LAMBDA (CONS ARGL BODYL))))
(if |$PrettyPrint| (PRETTYPRINT U))
(COMP370 (LIST U))
NAME))
(DEFUN COMP-NEWNAM (X)
(let (y u)
(cond ((ATOM X) NIL)
((ATOM (setq Y (CAR X)))
;; (AND (IDENTP Y) (setq U (GET Y 'NEWNAM)) (RPLACA X U))
(AND (NOT (eq Y 'QUOTE)) (COMP-NEWNAM (CDR X)))
(WHEN (and (EQ Y 'CLOSEDFN) (boundp '$closedfns))
(SETQ U (MAKE-CLOSEDFN-NAME))
(PUSH (list U (CADR X)) $closedfns)
(rplaca x 'FUNCTION)
(rplaca (cdr x) u)))
(t (COMP-NEWNAM (CAR X)) (COMP-NEWNAM (CDR X))))))
(defun make-closedfn-name ()
(internl $FUNNAME "!" (STRINGIMAGE (LENGTH $CLOSEDFNS))))
(DEFUN COMP-TRAN (X)
"SEXPR<FN. BODY> -> SEXPR"
(let ((X (COMP-EXPAND X)) FluidVars LocVars SpecialVars)
(COMP-TRAN-1 (CDDR X))
(setq X (list (first x) (second x)
(if (and (null (cdddr x))
(or (atom (third x))
(eq (car (third x)) 'SEQ)
(not (contained 'EXIT (third x)))))
(caddr x)
(cons 'SEQ (cddr x))))) ;catch naked EXITs
(let* ((FluidVars (REMDUP (NREVERSE FLUIDVARS)))
(LOCVARS (S- (S- (REMDUP (NREVERSE LOCVARS)) FLUIDVARS)
(LISTOFATOMS (CADR X))))
(LVARS (append fluidvars LOCVARS)))
(let ((fluids (S+ fluidvars SpecialVars)))
(setq x
(if fluids
`(,(first x) ,(second x)
(prog ,lvars (declare (special . ,fluids))
(return ,(third x))))
(list (first x) (second x)
(if (or lvars (contained 'RETURN (third x)))
`(prog ,lvars (return ,(third x)))
(third x)) )))))
(let ((fluids (S+ (comp-fluidize (second x)) SpecialVars)))
(if fluids
`(,(first x) ,(second x) (declare (special . ,fluids)) . ,(cddr x))
`(,(first x) ,(second x) . ,(cddr x))))))
; Fluidize: Returns a list of fluid variables in X
(DEFUN COMP-FLUIDIZE (X)
(COND ((AND (symbolp X)
(NE X '$)
(NE X '$$)
(char= #\$ (ELT (PNAME X) 0))
(NOT (DIGITP (ELT (PNAME X) 1))))
x)
((atom x) nil)
((eq (first X) 'FLUID) (second X))
((let ((a (comp-fluidize (first x)))
(b (comp-fluidize (rest x))))
(if a (cons a b) b)))))
(DEFUN COMP\,FLUIDIZE (X) (COND
((AND (IDENTP X)
(NE X '$)
(NE X '$$)
(char= #\$ (ELT (PNAME X) 0)) (NULL (DIGITP (ELT (PNAME X) 1))))
(LIST 'FLUID X))
((ATOM X) X)
((EQ (QCAR X) 'FLUID) X)
('T (PROG (A B)
(SETQ A (COMP\,FLUIDIZE (QCAR X)))
(SETQ B (COMP\,FLUIDIZE (QCDR X)))
(COND ((AND (EQ A (QCAR X)) (EQ B (QCDR X)))
(RETURN X))
('T (RETURN (CONS A B)) )) ) )))
; NOTE: It is potentially dangerous to assume every occurrence of element of
; $COMP-MACROLIST is actually a macro call
(defparameter $COMP-MACROLIST
'(COLLECT REPEAT SUCHTHATCLAUSE THETA COLLECTV COLLECTVEC
THETA1 SPADREDUCE SPADDO)
"???")
(DEFUN COMP-EXPAND (X)
(COND ((atom x) x)
((eq (CAR X) 'QUOTE) X)
((memq (CAR X) $COMP-MACROLIST)
(comp-expand (macroexpand-1 x)))
((let ((a (comp-expand (car x)))
(b (comp-expand (cdr x))))
(if (AND (eq A (CAR X)) (eq B (CDR X)))
x
(CONS A B))))))
(DEFUN COMP-TRAN-1 (X)
(let (u)
(cond ((ATOM X) NIL)
((eq (setq U (CAR X)) 'QUOTE) NIL)
((AND (eq U 'MAKEPROP) $TRACELETFLAG (RPLAC (CAR X) 'MAKEPROP-SAY) NIL)
NIL)
; temporarily make TRACELET cause MAKEPROPs to be reported
((MEMQ U '(DCQ RELET PRELET SPADLET SETQ LET) )
(COND ((NOT (eq U 'DCQ))
(COND ((OR (AND (eq $NEWSPAD T) (NOT $BOOT))
(MEMQ $FUNNAME |$traceletFunctions|))
(NCONC X $FUNNAME_TAIL)
(RPLACA X 'LETT))
; this devious trick (due to RDJ) is needed since the compile
; looks only at global variables in top-level environment;
; thus SPADLET cannot itself test for such flags (7/83).
($TRACELETFLAG (RPLACA X '/TRACE-LET))
((eq U 'LET) (RPLACA X 'SPADLET)))))
(COMP-TRAN-1 (CDDR X))
(AND (NOT (MEMQ U '(setq RELET)))
(COND ((IDENTP (CADR X)) (PUSHLOCVAR (CADR X)))
((EQCAR (CADR X) 'FLUID)
(PUSH (CADADR X) FLUIDVARS)
(RPLAC (CADR X) (CADADR X)))
((mapc #'pushlocvar (listofatoms (cadr x))) nil))))
((and (symbolp u) (GET U 'ILAM))
(RPLACA X (EVAL U)) (COMP-TRAN-1 X))
((MEMQ U '(PROG LAMBDA))
(PROG (NEWBINDINGS RES)
(setq NEWBINDINGS NIL)
(mapcar #'(lambda (Y)
(COND ((NOT (MEMQ Y LOCVARS))
(setq LOCVARS (CONS Y LOCVARS))
(setq NEWBINDINGS (CONS Y NEWBINDINGS)))))
(second x))
(setq RES (COMP-TRAN-1 (CDDR X)))
(setq locvars (remove-if #'(lambda (y) (memq y newbindings))
locvars))
(RETURN (CONS U (CONS (CADR X) RES)) )) )
((PROGN (COMP-TRAN-1 U) (COMP-TRAN-1 (CDR X)))))))
(DEFUN PUSHLOCVAR (X)
(let (p)
(cond ((AND (NE X '$)
(char= #\$ (ELT (setq P (PNAME X)) 0))
(NOT (char= #\, (ELT P 1)))
(NOT (DIGITP (ELT P 1)))) NIL)
((PUSH X LOCVARS)))))
(defmacro PRELET (L) `(spadlet . ,L))
(defmacro RELET (L) `(spadlet . ,L))
(defmacro PRESET (L) `(spadlet . ,L))
(defmacro RESET (L) `(spadlet . ,L))
|
