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DECL
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(DEFINE-FILE-INFO READTABLE "INTERLISP" PACKAGE "INTERLISP")
(FILECREATED " 3-Nov-87 13:42:29" {QV}<LFG>PARSER>LYRIC>DECL.;2 159700
changes to%: (FNS *DECLMAC)
previous date%: "23-Feb-87 13:22:27" {QV}<LFG>PARSER>LYRIC>DECL.;1)
(* "
Copyright (c) 1983, 1984, 1985, 1987 by Xerox Corporation. All rights reserved.
")
(PRETTYCOMPRINT DECLCOMS)
(RPAQQ DECLCOMS
[(* DECLTYPE machinery, declaration translator, and declaration enforcer)
(LOCALVARS . T)
(GLOBALVARS FILEPKGFLG CLISPCHANGE CLISPARRAY DWIMESSGAG NOSPELLFLG MSDATABASELST
DECLTYPESARRAY COMMENTFLG CLISPCHARS DECLATOMS LCASEFLG DECLMESSAGES CLISPRETRANFLG)
(E (RESETSAVE CLISPIFYPRETTYFLG NIL)
(RESETSAVE PRETTYPRINTMACROS (APPEND '((DECL . QUOTE)
(DPROGN . QUOTE)
(DLAMBDA . QUOTE)
(DPROG . QUOTE)) PRETTYPRINTMACROS)))
(COMS (* Interface to file package)
(FNS DECLTYPE DECLTYPES DUMPDECLTYPES GETDECLDEF)
(FILEPKGCOMS DECLTYPES IGNOREDECL)
(PROP ARGNAMES DECLTYPE))
(* User functions)
(FNS COVERS GETDECLTYPEPROP SETDECLTYPEPROP SUBTYPES SUPERTYPES)
(MACROS SELCOVERSQ SELTYPEQ)
(ALISTS (PRETTYEQUIVLST SELCOVERSQ SELTYPEQ)
(DWIMEQUIVLST SELCOVERSQ SELTYPEQ))
[P (SETSYNONYM '(THE TYPE) '(AS A TYPE]
(* Internal machinery)
(DECLARE%: DONTCOPY (RECORDS TYPEBLOCK TYPEDEF)
(ALISTS (PRETTYPRINTYPEMACROS TYPEBLOCK)))
(INITRECORDS TYPEBLOCK)
(P (DEFPRINT 'TYPEBLOCK 'TBDEFPRINT))
(FNS CHECKTYPEXP COLLECTTYPES COVERSCTYPE COVERSTB COVERSTE CREATEFNPROP CREATEFNVAL
DECLERROR DELETETB FINDDECLTYPE FINDPROP FINDTYPEXP GETCTYPE GETDECLTYPE
GETDECLTYPE.NOERROR GETTBPROP INHERITPROP INITDECLTYPES LCCTYPE LCC2 MAKECTYPE
MAKEDECLTYPE MAKEBINDFN MAKESETFN MAPTYPEUSERS NOTICETB PPDTYPE RECDTYPE
DECLCHANGERECORD RECDEFTYPE REPROPTB SETTBPROP TBDEFPRINT TETYPE TYPEMSANAL TYPEMSANAL1
UNCOMPLETE UNSAVETYPE USERDECLTYPE USESTYPE)
(BLOCKS (LCCTYPE LCCTYPE LCC2)
(TYPEMSANAL TYPEMSANAL TYPEMSANAL1))
(* Test fn creation block)
(FNS MAKETESTFN MAKETESTFNBLOCK COMBINE.TESTS FUNIFY MKNTHCAR MKNTHCDR OF.TESTFN TUPLE.TESTFN
WHOSE.TESTFN)
(BLOCKS (MAKETESTFNBLOCK MAKETESTFNBLOCK COMBINE.TESTS FUNIFY MKNTHCAR MKNTHCDR OF.TESTFN
TUPLE.TESTFN WHOSE.TESTFN))
(* Machinery to compile recursive testfns)
(FILES (SYSLOAD FROM VALUEOF LISPUSERSDIRECTORIES)
LABEL)
(* Idioms. Expressed as macros for now)
(DECLARE%: DONTCOPY EVAL@COMPILE (VARS DefaultBindFn DefaultSetFn)
(ADDVARS (NLAMA MAKEDECLTYPEQ))
(MACROS ANYC DECLVARERROR DTYPENAME foreachTB GETCGETD KWOTEBOX LAMBIND LAMVAL
MAKEDECLTYPEQ NONEC TESTFORM)
(FNS TESTFORM)
(ADDVARS (DONTCOMPILEFNS TESTFORM))
(TEMPLATES foreachTB MAKEDECLTYPEQ))
(* Runtime utility functions)
(FNS EVERYCHAR LARGEP DECLRECURSING SMASHCAR)
(DECLARE%: EVAL@COMPILE (MACROS LARGEP))
(DECLARE%: DONTCOPY EVAL@COMPILE (MACROS SMASHCAR))
(* translator of dprogs and dlambdas)
(FNS ASSERT ASSERTFAULT ASSERTMAC \*DECL *DECLMAC \CHKINIT CHKINITMAC DECLCONSTANTP DD
DECLCLISPTRAN DECLMSG DECLDWIMERROR DECLDWIMTESTFN DECLSET DECLSETQ DECLSETQQ DECLTRAN
DECLVAR DLAMARGLIST DTYPE?TRAN EDITNEWSATLIST FORMUSESTB IGNOREDECL MAKETESTFORM PPDECL
PPVARLIST SETQMAC THETRAN VALUEERROR \VARASRT VARASRT1 VARSETFN)
(BLOCKS (DECLTRAN DECLTRAN DECLVAR)
(PPDECL PPDECL PPVARLIST)
(\VARASRT \VARASRT VARASRT1))
(* Declaration database fns)
(FNS DECLOF DECLOF1 TBOF TYPEBLOCKOF VARDECL)
(BLOCKS (DECLOFBLK DECLOF DECLOF1 TBOF TYPEBLOCKOF VARDECL (ENTRIES DECLOF TYPEBLOCKOF)))
(* Enabling and disabling fns)
(DECLARE%: EVAL@COMPILE DONTCOPY (RECORDS FNEQUIVS)
(MACROS MOVEPROP PUTIFPROP))
(FNS STARTDECLS DODECLS)
(FILES (SYSLOAD FROM VALUEOF LISPUSERSDIRECTORIES)
LAMBDATRAN)
(DECLARE%: EVAL@COMPILE (FILES (SYSLOAD FROM VALUEOF LISPUSERSDIRECTORIES)
SIMPLIFY))
[DECLARE%: EVAL@COMPILE DONTCOPY (* the old NOBOX code.)
(FNS IBOX FBOX NBOX)
(P (MOVD? 'LIST 'LBOX)
(MOVD? 'CONS 'CBOX))
(RECORDS FBOX IBOX)
(MACROS IBOX FBOX NBOX)
(MACROS CBOX LBOX)
(I.S.OPRS scratchcollect)
(ADDVARS (SYSLOCALVARS $$SCCONS $$SCPTR)
(INVISIBLEVARS $$SCCONS $$SCPTR))
(* Definition of WITH. From <SHEIL>WITH.)
(MACROS WITH)
(TEMPLATES WITH)
(P (REMPROP 'WITH 'CLISPWORD)
(ADDTOVAR DWIMEQUIVLST (WITH . PROG))
(ADDTOVAR PRETTYEQUIVLST (WITH . PROG]
[DECLARE%: DOCOPY (DECLARE%: EVAL@LOADWHEN (NEQ (SYSTEMTYPE)
'D)
(P (OR (GETPROP 'LOADTIMECONSTANT 'FILEDATES)
(PROG ((X (FINDFILE (PACKFILENAME 'NAME 'LOADTIMECONSTANT
'EXTENSION COMPILE.EXT)
T LISPUSERSDIRECTORIES)))
(COND (X (LOAD X 'SYSLOAD))
((NOT (GETPROP 'LOADTIMECONSTANT 'MACRO))
(PUTPROP 'LOADTIMECONSTANT 'MACRO
'((FORM)
(CONSTANT FORM]
(ADDVARS (OPENFNS \DECLPROGN \CHKVAL \CHKINIT ASSERT \*DECL \VARASRT))
(PROP CLISPWORD DPROG DPROGN THE the)
(PROP INFO DLAMBDA DPROG DPROGN)
(VARS (SATISFIESLIST)
(CSATISFIESLIST)
(NEWSATLIST T))
(INITVARS (DECLMESSAGES)
(COMPILEIGNOREDECL))
[ADDVARS (DECLATOMS DLAMBDA DPROG DPROGN)
(LAMBDASPLST DLAMBDA)
(SYSLOCALVARS VALUE)
[DESCRIBELST ("types: " (GETRELATION FN '(USE TYPE]
(BAKTRACELST (\DECLPROGN (DPROGN APPLY
*PROG*LAM \*DECL *ENV*)
(NIL APPLY *PROG*LAM \*DECL))
(PROG (DPROG \DECLPROGN
APPLY
*PROG*LAM
\*DECL)]
(DECLARE%: EVAL@COMPILE DONTCOPY (RECORDS SLISTENTRY VARDECL))
(ALISTS (LAMBDATRANFNS DLAMBDA))
[DECLARE%: DONTEVAL@LOAD (E (* Declare is so PRETTYPRINTMACROS don't get set up during
LOADFROM, when PPDECL is not being defined. Don't use ALIST
for print macros cause entries are removed while DECL is being
dumped))
(ADDVARS (PRETTYPRINTMACROS (DPROGN . PPDECL)
(DECL . PPDECL)
(DLAMBDA . PPDECL)
(DPROG . PPDECL]
(PROP INFO ASSERT)
(MACROS ASSERT .CBIND. \CHKINIT \CHKVAL \*DECL DECL DECLMSGMAC REALSETQ)
(* MACROS REALSET)
[P (AND (GETD 'STARTDECLS)
(STARTDECLS))
(PROG [(COM (CDR (ASSOC 'DW EDITMACROS]
(AND COM (RPLACD COM (CONS (APPEND '(RESETVAR NEWSATLIST (EDITNEWSATLIST))
(CDR COM]
(* Builtin DECLOF properties)
(PROP DECLOF APPEND CONS EQ LIST LISTP NCONC)
[DECLARE%: EVAL@COMPILE DONTCOPY (P (RESETSAVE DWIMIFYCOMPFLG NIL)
(AND (GETD 'DODECLS)
(RESETSAVE (DODECLS)
'(DODECLS T]
(DECLARE%: DONTEVAL@LOAD DOEVAL@COMPILE DONTCOPY COMPILERVARS
(ADDVARS (NLAMA DECLSETQ DECLMSG DD \CHKINIT \*DECL ASSERT DECLTYPES DECLTYPE)
(NLAML DECLSETQQ TYPEMSANAL)
(LAMA DECLDWIMERROR])
(* DECLTYPE machinery, declaration translator, and declaration enforcer)
(DECLARE%: DOEVAL@COMPILE DONTCOPY
(LOCALVARS . T)
)
(DECLARE%: DOEVAL@COMPILE DONTCOPY
(GLOBALVARS FILEPKGFLG CLISPCHANGE CLISPARRAY DWIMESSGAG NOSPELLFLG MSDATABASELST DECLTYPESARRAY
COMMENTFLG CLISPCHARS DECLATOMS LCASEFLG DECLMESSAGES CLISPRETRANFLG)
)
(* Interface to file package)
(DEFINEQ
(DECLTYPE
[NLAMBDA X (* bas%: " 7-NOV-79 16:22")
(USERDECLTYPE (CAR X)
(CADR X)
(CDDR X])
(DECLTYPES
[NLAMBDA DTS (* bas%: " 7-NOV-79 16:24")
(* Defines a list of decltypes)
(for D in DTS collect (USERDECLTYPE (CAR D)
(CADR D)
(CDDR D])
(DUMPDECLTYPES
[LAMBDA (TL) (* rmk%: " 7-SEP-81 04:50")
(WITH [[TWOFLG (OR (NLISTP TL)
(LISTP (CDR TL]
(FFLG (NEQ T (OUTPUT]
(* Don't do the plural and extra parens if only one, and don't do the
EVAL@COMPILE stuff if going to T=SHOWDEF)
(if FFLG
then (printout NIL T "(DECLARE: EVAL@COMPILE" T T))
(printout NIL (if TWOFLG
then "(DECLTYPES"
else "(DECLTYPE "))
(for D in TL do (if TWOFLG
then (printout NIL 11 "("))
[if (LISTP D)
then (printout NIL |.P2| (CAR D)
%, |.P2| (CAR D)
%, |.P2| (CADR D)
%, .PPV (GETDECLTYPEPROP (CAR D)
(CADR D)))
else [SETQ D (CDR (GETDECLDEF D NIL 'NOCOPY]
(printout NIL |.P2| (CAR D)
%,)
(for TAIL (POS _ (POSITION)) on (CDDR D) by (CDDR TAIL)
first (PRINTDEF (CADR D)
POS) do (printout NIL .TAB POS |.P2| (CAR TAIL)
%, .PPF (CADR TAIL]
(if TWOFLG
then (printout NIL ")")))
(printout NIL ")" T)
(if FFLG
then (printout NIL ")" T])
(GETDECLDEF
[LAMBDA (NAME FPTYPE OPTIONS) (* bas%: " 9-OCT-79 23:04")
(* This is the GETDEF function for DECLTYPE.
FPTYPE is the file-package-type argument, which we ignore.)
(WITH ((TB (FINDDECLTYPE NAME))
(NOCOPYP (EQMEMB 'NOCOPY OPTIONS)))
(if TB
then [CONS 'DECLTYPE (CONS NAME (CONS (WITH ((TE (fetch TYPEXP of TB)))
(if NOCOPYP
then TE
else (COPY TE)))
(WITH ((TP (fetch PROPS of TB)))
(if NOCOPYP
then TP
else (COPY TP]
elseif (EQMEMB 'NOERROR OPTIONS)
then NIL
else (DECLERROR NAME "is not a DECLTYPE"])
)
(PUTDEF (QUOTE DECLTYPES) (QUOTE FILEPKGCOMS) '[[COM MACRO (X (E (DUMPDECLTYPES 'X]
(TYPE DESCRIPTION "type declarations" GETDEF
GETDECLDEF DELDEF
(LAMBDA (NAME)
(DELETETB (OR (FINDDECLTYPE NAME)
(DECLERROR
"Can't delete non-existent type:"
NAME])
(PUTDEF (QUOTE IGNOREDECL) (QUOTE FILEPKGCOMS) '[(COM MACRO
(X (DECLARE%: DOEVAL@COMPILE DONTEVAL@LOAD
DONTCOPY (P (RESETSAVE
COMPILEIGNOREDECL
'X])
(PUTPROPS DECLTYPE ARGNAMES (NIL (NAME TYPE PROP1 VAL1 |...|) . X))
(* User functions)
(DEFINEQ
(COVERS
[LAMBDA (HI LO) (* bas%: "16-OCT-79 11:22")
(AND (COVERSTB (GETDECLTYPE HI)
(GETDECLTYPE LO))
T])
(GETDECLTYPEPROP
[LAMBDA (TYPE PROP) (* bas%: " 9-OCT-79 22:56")
(GETTBPROP (GETDECLTYPE TYPE)
PROP])
(SETDECLTYPEPROP
[LAMBDA (NAME PROP VAL) (* rmk%: " 2-AUG-81 08:41")
(OR (LITATOM NAME)
(DECLERROR "Can't set property of non-atomic type:" NAME))
(REPROPTB (OR (FINDDECLTYPE NAME)
(DECLERROR "Can't set property of non-existent type:" NAME))
(LIST PROP VAL))
(MARKASCHANGED (LIST NAME PROP)
'DECLTYPES)
VAL])
(SUBTYPES
[LAMBDA (NAME) (* bas%: "16-OCT-79 18:59")
(PROG (TYPES CT (BT (GETDECLTYPE NAME)))
(DECLARE (SPECVARS TYPES CT))
(SETQ CT (GETCTYPE BT))
(if (NONEC CT)
elseif (EQ (CAR (fetch TYPEXP of BT))
'ONEOF)
then [RETURN (APPEND (CDR (fetch TYPEXP of BT]
else [foreachTB S (AND (LITATOM (fetch NAME of S))
(FMEMB CT (GETCTYPE S))
(push TYPES (fetch NAME of S]
(RETURN (OR TYPES (LIST 'NONE])
(SUPERTYPES
[LAMBDA (NAME) (* bas%: "16-OCT-79 18:20")
(PROG (TYPES (CN (GETCGETD NAME)))
(DECLARE (SPECVARS TYPES CN))
[if (ANYC CN)
then NIL
else (foreachTB TB (AND (LITATOM (fetch NAME of TB))
(if (NONEC CN)
then (* Very expensive, but kinda wierd)
(NULL (SUBTYPES (fetch NAME of TB)))
else
(* Any sups will be complete so we dont need to complete here)
(FMEMB (fetch CTYPE of (fetch DEF of TB))
CN))
(push TYPES (fetch NAME of TB]
(RETURN TYPES])
)
(DECLARE%: EVAL@COMPILE
[PUTPROPS SELCOVERSQ MACRO
(F (LIST [LIST 'LAMBDA '($$TMP) (CONS 'COND (MAPLIST (CDR F)
(FUNCTION
(LAMBDA
(I)
(COND ((CDR I)
(CONS (LIST 'COVERS
(KWOTE (CAAR I))
'$$TMP)
(CDAR I)))
(T (LIST T (CAR I]
(LIST 'DECLOF (CAR F]
[PUTPROPS SELTYPEQ MACRO (F (APPLYFORM [LIST 'LAMBDA '($$TMP)
(CONS 'COND (MAPLIST (CDR F)
(FUNCTION
(LAMBDA
(I)
(COND ((CDR I)
(CONS (LIST 'TYPE?
(CAAR I)
'$$TMP)
(CDAR I)))
(T (LIST T (CAR I]
(CAR F]
)
(ADDTOVAR PRETTYEQUIVLST (SELCOVERSQ . SELECTQ)
(SELTYPEQ . SELECTQ))
(ADDTOVAR DWIMEQUIVLST (SELCOVERSQ . SELECTQ)
(SELTYPEQ . SELECTQ))
(SETSYNONYM '(THE TYPE) '(AS A TYPE))
(* Internal machinery)
(DECLARE%: DONTCOPY
(DECLARE%: EVAL@COMPILE
(DATATYPE TYPEBLOCK (NAME DEF BF SF TF PROPS)
[ACCESSFNS TYPEBLOCK ([TYPEXP (fetch TEXP of (fetch DEF of DATUM))
(replace DEF of DATUM with (create TYPEDEF
TEXP _
(COPY NEWVALUE]
(BINDFN (OR (fetch BF of DATUM)
(MAKEBINDFN DATUM))
(replace BF of DATUM with NEWVALUE))
(SETFN (OR (fetch SF of DATUM)
(MAKESETFN DATUM))
(replace SF of DATUM with NEWVALUE))
(TESTFN (OR (fetch TF of DATUM)
(MAKETESTFN DATUM))
(replace TF of DATUM with NEWVALUE]
[CCREATE (PROGN (OR (FASSOC 'NAME FIELDS.IN.CREATE)
(HELP "No NAME field in TYPEBLOCK create"))
(OR (FASSOC 'TYPEXP FIELDS.IN.CREATE)
(FASSOC 'DEF FIELDS.IN.CREATE)
(HELP "No type expression in TYPEBLOCK create"))
(LIST 'NOTICETB 'DATUM (CADR (FASSOC 'NAME FIELDS.IN.CREATE]
(SYSTEM))
(RECORD TYPEDEF (TEXP . CTYPE))
)
(/DECLAREDATATYPE 'TYPEBLOCK '(POINTER POINTER POINTER POINTER POINTER POINTER)
'((TYPEBLOCK 0 POINTER)
(TYPEBLOCK 2 POINTER)
(TYPEBLOCK 4 POINTER)
(TYPEBLOCK 6 POINTER)
(TYPEBLOCK 8 POINTER)
(TYPEBLOCK 10 POINTER))
'12)
(ADDTOVAR PRETTYPRINTYPEMACROS (TYPEBLOCK . PPDTYPE))
)
(/DECLAREDATATYPE 'TYPEBLOCK '(POINTER POINTER POINTER POINTER POINTER POINTER)
'((TYPEBLOCK 0 POINTER)
(TYPEBLOCK 2 POINTER)
(TYPEBLOCK 4 POINTER)
(TYPEBLOCK 6 POINTER)
(TYPEBLOCK 8 POINTER)
(TYPEBLOCK 10 POINTER))
'12)
(DEFPRINT 'TYPEBLOCK 'TBDEFPRINT)
(DEFINEQ
(CHECKTYPEXP
[LAMBDA (TE) (* bas%: "18-OCT-79 16:58")
(* Checks that a type expression is
structurally valid)
(OR (TETYPE TE)
(DECLERROR "Invalid type expression" TE])
(COLLECTTYPES
[LAMBDA (TYPES MERGE) (* bas%: " 9-OCT-79 22:53")
(* Converts a list of type names into a list of typeblocks merging together
those that lie on the same sup-sub chain to the highest or lowest member of
that chain as specified by MERGE)
(for SCR I VAL in TYPES eachtime (SETQ I (GETDECLTYPE SCR))
unless [for J in VAL thereis (OR (EQ I J)
(SELECTQ MERGE
(UP (COVERSTB J I))
(DOWN (COVERSTB I J))
(SHOULDNT] do (SETQ VAL (CONS I VAL))
(* Add to VAL unless dominated by an already existing entry)
finally
(* Walk back down list throwing out anything that is dominated by a subsequent
addition)
(SETQ SCR VAL)
(SETQ VAL NIL)
[while SCR do (SETQ SCR (PROG1 (CDR SCR)
(if (for J in VAL
never (SELECTQ MERGE
(UP (COVERSTB J (CAR SCR)))
(DOWN (COVERSTB (CAR SCR)
J))
(SHOULDNT)))
then (RPLACD SCR VAL)
(SETQ VAL SCR]
(RETURN VAL])
(COVERSCTYPE
[LAMBDA (H L) (* bas%: "11-OCT-79 11:35")
(* COVERS for CTYPEs)
(PROG NIL
(* We use a PROG so we can chase singleton supertypes which are the common case
by looping rather than recursion.)
LP (if (EQ H L)
then (RETURN T)
elseif (NLISTP L)
then (RETURN (NONEC L))
(* Either we had NONE to start or we have arrived at ANY)
elseif (CDR L)
then (RETURN (for I in L thereis (COVERSCTYPE H I)))
else (SETQ L (CAR L)) (* Single supertype)
(GO LP])
(COVERSTB
[LAMBDA (H L) (* bas%: "19-OCT-79 17:40")
(* COVERS for type blocks. COVERSTE gets some cases that are difficult from the
lattice.)
(OR (EQ H L)
(COVERSCTYPE (GETCTYPE H)
(GETCTYPE L))
(COVERSTE (fetch TYPEXP of H)
(fetch TYPEXP of L])
(COVERSTE
[LAMBDA (H L) (* bas%: "31-OCT-79 14:34")
(* COVERS for type expressions. We pick off MEMQ and ONEOFs here because they
cannot be efficiently linked into the type lattice.)
(SELECTQ (TETYPE H)
(ONEOF (SELECTQ (TETYPE L)
(ONEOF (for I in (CDR L) always (for J in (CDR H) thereis (COVERS J I))))
(for I in (CDR H) thereis (COVERS I L))))
(MEMQ (SELECTQ (TETYPE L)
(MEMQ (for I in (CDR L) always (MEMBER I (CDR H))))
NIL))
NIL])
(CREATEFNPROP
[LAMBDA (PL PN) (* bas%: " 7-NOV-79 16:51")
(* If a value for prop PN appears on PL, CREATEFNVAL it.
NIL will indicate that no specification has yet been made.)
(WITH ((PE (FINDPROP PL PN)))
(AND PE (CREATEFNVAL (CADR PE)
PN])
(CREATEFNVAL
[LAMBDA (FVAL FNAME) (* bas%: " 7-NOV-79 16:53")
(* Gets given a purported FNVAL. If that value is NIL, use the default.
Dwimify a list value.)
(DECLARE (USEDFREE DWIMFLG))
(if FVAL
then (AND DWIMFLG (LISTP FVAL)
(DWIMIFY FVAL T))
FVAL
else (SELECTQ FNAME
(BINDFN (CONSTANT DefaultBindFn))
(SETFN (CONSTANT DefaultSetFn))
NIL])
(DECLERROR
[LAMBDA (MSG1 MSG2) (* bas%: "25-NOV-78 18:25")
(if (BOUNDP 'DECLERROR)
then (SETQ DECLERROR T)
(ERROR!)
else (ERROR MSG1 MSG2])
(DELETETB
[LAMBDA (TB) (* rmk%: "19-AUG-81 00:15")
(* Dissasociates TB from its name and undoes any dependencies on it)
(WITH ((NAME (fetch NAME of TB)))
(SELECTQ NAME
((ANY NONE)
(DECLERROR "(Futile) attempt to delete" NAME))
NIL)
(UNSAVETYPE TB) (* Unsave dependent code)
(UNCOMPLETE TB) (* Undo the cached values and
dependent types)
(NOTICETB NIL NAME) (* Snap name association)
(replace NAME of TB with (PACK* 'Deleted NAME])
(FINDDECLTYPE
[LAMBDA (TE) (* bas%: "10-OCT-79 01:46")
(* Finds the existing typeblock for a type expression if any)
(COND
((LISTP TE)
(* TE must be in CLISPARRAY to detect edits of the type expression)
(AND (GETHASH TE CLISPARRAY)
(GETHASH TE DECLTYPESARRAY)))
(T (OR (GETHASH TE DECLTYPESARRAY)
(RECDTYPE TE])
(FINDPROP
[LAMBDA (L P) (* rmk%: "12-Mar-85 08:56")
(for TAIL on L by (CDR (LISTP (CDR TAIL))) thereis (EQ P (CAR TAIL])
(FINDTYPEXP
[LAMBDA (TYPE) (* bas%: "16-OCT-79 14:17")
(* Tries to find an equivalent TYPEBLOCK for the expression TYPE)
(DECLARE (SPECVARS TYPE))
(foreachTB TB (if (AND (LISTP (fetch NAME of TB))
(EQUAL TYPE (fetch TYPEXP of TB)))
then (OR (EQUAL TYPE (fetch NAME of TB))
(replace NAME of TB with TYPE))
(* NAME has been edited)
(NOTICETB TB TYPE) (* Remember this path)
(RETFROM 'FINDTYPEXP TB)))
NIL])
(GETCTYPE
[LAMBDA (TB) (* rmk%: "29-NOV-81 14:33")
(OR (fetch CTYPE of (fetch DEF of TB))
(if (DECLRECURSING 'GETCTYPE TB)
then (DECLERROR "Invalid recursive type definition" (fetch TYPEXP of TB)))
(replace CTYPE of (fetch DEF of TB) with (MAKECTYPE (fetch TYPEXP of TB])
(GETDECLTYPE
[LAMBDA (TE VARNAME) (* bas%: "18-OCT-79 15:38")
(* Either finds a typeblock with TE as its type expression or creates one.
We smuggle the name thru in the PROPS field as anyone who specifies a VARNAME
is unnamed so neither has nor can acquire any properties.)
(OR (FINDDECLTYPE TE)
(AND (LISTP TE)
(OR (FINDTYPEXP TE)
(MAKEDECLTYPE TE TE VARNAME)))
(DECLERROR TE "is not a DECLTYPE"])
(GETDECLTYPE.NOERROR
[LAMBDA (TE VAR) (* bas%: "19-OCT-79 16:05")
(* Makes and completes a typeblock for TE suppressing any DECLERRORs)
(WITH ((DECLERROR))
(DECLARE (SPECVARS DECLERROR))
(OR (CAR (ERSETQ (WITH ((TB (GETDECLTYPE TE VAR)))
(* Force completion so any errors will happen now under the ERSETQ)
(GETCTYPE TB)
(fetch TESTFN of TB)
TB)))
(COND
(DECLERROR NIL)
(T (ERROR!])
(GETTBPROP
[LAMBDA (TB P) (* bas%: "15-AUG-79 23:49")
(SELECTQ P
(BINDFN (fetch BINDFN of TB))
(SETFN (fetch SETFN of TB))
(TESTFN (fetch TESTFN of TB))
(WITH ((PL (FINDPROP (fetch PROPS of TB)
P)))
(if PL
then (CADR PL)
else (INHERITPROP TB P])
(INHERITPROP
[LAMBDA (TB PROP) (* bas%: "19-OCT-79 16:45")
(* Determines how types inherit their properties on the basis of the way they
were formed from other types)
(WITH ((TE (fetch TYPEXP of TB)))
(AND (LISTP TE)
(GETDECLTYPEPROP
(SELECTQ (TETYPE TE)
((ALLOF ONEOF)
(WITH ((V (GETDECLTYPEPROP (CADR TE)
PROP))
(ANYVAL (GETDECLTYPEPROP 'ANY PROP)))
(RETFROM 'INHERITPROP
(if [OR (EQ V ANYVAL)
(for I in (CDDR TE)
always (EQ V (GETDECLTYPEPROP I PROP]
then V
else ANYVAL))))
((OF SATISFIES WHOSE)
(CAR TE))
(MEMQ (CONS 'ONEOF (for I in (CDR TE) collect (DTYPENAME I))))
(SHARED (if (EQ PROP 'BINDFN)
then (RETFROM 'INHERITPROP (CONSTANT DefaultBindFn))
else (CADR TE)))
((SUBTYPE SYNONYM)
(CADR TE))
(TUPLE 'LISTP)
'ANY)
PROP])
(INITDECLTYPES
[LAMBDA NIL (* rmk%: "14-SEP-82 22:17")
(* Initializes DECLTYPES hash array)
[COND
((BOUNDP 'DECLTYPESARRAY)
(CLRHASH DECLTYPESARRAY))
(T (SETQ DECLTYPESARRAY (CONS (HARRAY 128)
128]
(FILEPKGCHANGES 'DECLTYPES NIL)
(* Make FILEPKG forget about any types it may have noticed.)
(RESETVARS (FILEPKGFLG)
[for I in '(ANY NONE) do (create TYPEBLOCK
NAME _ I
DEF _ (create TYPEDEF
TEXP _ I
CTYPE _ I)
BINDFN _ (CONSTANT DefaultBindFn)
SETFN _ (CONSTANT DefaultSetFn)
TESTFN _ (LAMVAL (EQ I 'ANY]
(* ANY and NONE are created complete)
(MAKEDECLTYPEQ ARRAYP (SUBTYPE ANY)
(TESTFN ARRAYP))
(MAKEDECLTYPEQ HARRAYP (SUBTYPE ARRAYP)
(TESTFN HARRAYP))
(MAKEDECLTYPEQ LISTP (SUBTYPE ANY)
(TESTFN LISTP EVERYFN EVERY))
[MAKEDECLTYPEQ HASHARRAY (ONEOF HARRAYP (LISTP (WHOSE (CAR HARRAYP]
(MAKEDECLTYPEQ READTABLEP (SUBTYPE ARRAYP)
(TESTFN READTABLEP))
(MAKEDECLTYPEQ ATOM (SUBTYPE ANY)
(TESTFN ATOM))
(MAKEDECLTYPEQ LITATOM (SUBTYPE ATOM)
(TESTFN LITATOM))
(MAKEDECLTYPEQ BOOL (MEMQ NIL T))
(MAKEDECLTYPEQ NUMBERP (SUBTYPE ATOM)
(TESTFN NUMBERP))
(MAKEDECLTYPEQ FIXP (SUBTYPE NUMBERP)
(TESTFN FIXP))
[MAKEDECLTYPEQ CARDINAL (FIXP (SATISFIES (IGEQ VALUE 0]
(MAKEDECLTYPEQ SMALLP (SUBTYPE FIXP)
(TESTFN SMALLP))
(MAKEDECLTYPEQ LARGEP (SUBTYPE FIXP)
(TESTFN LARGEP))
(MAKEDECLTYPEQ FLOATP (SUBTYPE NUMBERP)
(TESTFN FLOATP))
(MAKEDECLTYPEQ FUNCTION (SUBTYPE ANY)
(TESTFN FNTYP))
(MAKEDECLTYPEQ NIL (MEMQ NIL)
(TESTFN NULL))
(MAKEDECLTYPEQ LST (ONEOF LISTP NIL)
(EVERYFN EVERY))
(MAKEDECLTYPEQ ALIST (LST OF LISTP))
(MAKEDECLTYPEQ STACKP (SUBTYPE ANY)
(TESTFN STACKP))
(MAKEDECLTYPEQ STRINGP (SUBTYPE ANY)
(TESTFN STRINGP EVERYFN EVERYCHAR])
(LCCTYPE
[LAMBDA (TL) (* bas%: "18-SEP-79 17:24")
(* Returns the lowest common ctype for the type names in TL)
(WITH [(C1 (GETCGETD (CAR TL]
(if (CDR TL)
then (LCC2 C1 (LCCTYPE (CDR TL)))
else C1])
(LCC2
[LAMBDA (A B) (* bas%: "10-OCT-79 19:12")
(* Returns the lcd of A and B)
(if (COVERSCTYPE A B)
then A
elseif (COVERSCTYPE B A)
then B
else (for I C in A do (WITH ((D (LCC2 I B)))
(if (OR (NULL C)
(COVERSCTYPE C D))
then (SETQ C D))) finally (RETURN C])
(MAKECTYPE
[LAMBDA (TE) (* bas%: "31-OCT-79 16:44")
(* Computes the real sup types of TE)
(SELECTQ (TETYPE TE)
(ALLOF [WITH [(S (COLLECTTYPES (CDR TE)
'DOWN]
(if (CDR S)
then (SMASHCAR S (FUNCTION GETCTYPE))
else (* They are all on the same path)
(GETCTYPE (CAR S])
(ONEOF [WITH [(S (COLLECTTYPES (CDR TE)
'UP]
(* Rather than having the subtypes point to this new ctype, we pick that case
up in COVERS to avoid making the supertype structure bushy.)
(if (CDR S)
then (LIST (LCCTYPE (CDR TE)))
else (* All on the same path)
(GETCTYPE (CAR S])
((SHARED SYNONYM)
(GETCGETD (CADR TE)))
(LIST (SELECTQ (TETYPE TE)
(MEMQ (LCCTYPE (for I in (CDR TE) scratchcollect (DTYPENAME I))))
(GETCGETD (SELECTQ (TETYPE TE)
((OF SATISFIES WHOSE)
(CAR TE))
(SUBTYPE (CADR TE))
(TUPLE (if (CDR TE)
then 'LISTP
else 'NIL))
(SHOULDNT])
(MAKEDECLTYPE
[LAMBDA (NAME DECL PROPS) (* bas%: " 7-NOV-79 16:33")
(* Defines the type specified by the
type expression DECL)
(CHECKTYPEXP DECL) (* Provides an early check on well
formedness)
(WITH [(TB (create TYPEBLOCK
NAME _ NAME
TYPEXP _ DECL
PROPS _ (COPY PROPS]
(if (LISTP PROPS)
then (replace BINDFN of TB with (CREATEFNPROP PROPS 'BINDFN))
(replace SETFN of TB with (CREATEFNPROP PROPS 'SETFN))
(replace TESTFN of TB with (CREATEFNPROP PROPS 'TESTFN))
(CREATEFNPROP PROPS 'EVERYFN))
TB])
(MAKEBINDFN
[LAMBDA (TB) (* bas%: "18-OCT-79 18:17")
(* Finds a BINDFN for TB)
(replace BINDFN of TB with (INHERITPROP TB 'BINDFN])
(MAKESETFN
[LAMBDA (TB) (* bas%: "18-OCT-79 21:17")
(* Finds a SETFN for TB)
(replace SETFN of TB with (INHERITPROP TB 'SETFN])
(MAPTYPEUSERS
[LAMBDA (NAME FN) (* bas%: "28-AUG-79 22:18")
(DECLARE (SPECVARS . T))
(foreachTB TB (AND (USESTYPE NAME (fetch TYPEXP of TB))
(APPLY* FN TB])
(NOTICETB
[LAMBDA (TBLOCK TEXP) (* rmk%: " 7-SEP-81 03:26")
(* Enters hash links so TBLOCK can be found given type expression TEXP)
(if (LISTP TEXP)
then (PUTHASH TEXP TEXP CLISPARRAY) (* Access name is also in CLISPARRAY
to detect changes))
(PUTHASH TEXP TBLOCK DECLTYPESARRAY])
(PPDTYPE
[LAMBDA (TYPE) (* bas%: "18-OCT-79 17:57")
(* PPs typeblock, completing unless
NOCOMPFLG)
(WITH [(LM (IPLUS 4 (POSITION)))
(TB (if (type? TYPEBLOCK TYPE)
then TYPE
else (GETDECLTYPE TYPE]
(printout NIL "DECLTYPE: " (fetch NAME of TB)
" = "
(OR (fetch TYPEXP of TB)
"No type expression"))
(printout NIL .TAB LM "Suptypes: ")
(if (fetch CTYPE of (fetch DEF of TB))
then (for I in (GETCTYPE TB) declare (SPECVARS I)
do (printout NIL .TAB0 (IPLUS LM 10)) (* Start each new suptype list on a
new line)
(foreachTB S (AND (EQ I (fetch CTYPE of (fetch DEF of S)))
(printout NIL (fetch NAME of S)
%,))) (* Dont force a completion to get the
CTYPE))
else (printout NIL "... not completed..."))
(if (fetch BF of TB)
then (printout NIL .TAB LM "Bindfn: " .PPF (fetch BF of TB)))
(if (fetch SF of TB)
then (printout NIL .TAB LM "Setfn: " .PPF (fetch SF of TB)))
(if (fetch TF of TB)
then (printout NIL .TAB LM "Testfn: " .PPF (fetch TF of TB)))
[if (fetch PROPS of TB)
then (printout NIL .TAB LM "Property: ")
(for P on (fetch PROPS of TB) by (CDDR P) do (printout NIL .TAB0 (IPLUS LM 10)
(CAR P)
" = " |.P2| (CADR P]
(TERPRI)
TB])
(RECDTYPE
[LAMBDA (R) (* rmk%: " 6-SEP-81 04:29")
(WITH [RDECL TB (TST (LIST 'type? R (CONS 'NILL]
(* The CONS produces a unique, dwim-immune object to give RECORDTRAN to
dwimify. We can then substitute for it to build the testfn.)
(COND
([RESETVARS (CLISPCHANGE (DWIMESSGAG T)) (* CLISPCHANGE bound cause RECORDTRAN
sets it)
(* If the record package translation bombs, simply return NIL to GETDECLTYPE,
which might then print an error message.)
(RETURN (NLSETQ (RECORDTRAN TST 'DTYPE?TRAN]
(SETQ RDECL (RECLOOK R))
[SETQ TB (create TYPEBLOCK
NAME _ R
TYPEXP _ (LIST 'SUBTYPE (RECDEFTYPE RDECL]
(* Use SETTBPROP to store TESTFN rather than doing it in the create, so that it
also shows up on the property list. Then the decltype will print with all its
info.)
[SETTBPROP TB 'TESTFN (LAMVAL (LIST COMMENTFLG 'ASSERT%: (LIST 'RECORD R))
(SUBST 'VALUE (CADDR TST)
(PROG1 (GETHASH TST CLISPARRAY)
(PUTHASH TST NIL CLISPARRAY]
(* The record package stores the DECL form in 9th car of the translation)
(for X on (CDAR (FNTH (GETHASH RDECL CLISPARRAY)
9)) by (CDDR X) do (SETTBPROP TB (CAR X)
(CADR X)))
TB])
(DECLCHANGERECORD
[LAMBDA (RNAME RFIELDS OLDFLG) (* rmk%: " 7-SEP-81 04:17")
(* CHANGERECORD is the default value of RECORDCHANGEFN, which is applied by
RECREDECLARE. This makes sure that a record change wipes out a dependent
decltype)
(REALCHANGERECORD RNAME RFIELDS OLDFLG)
(AND OLDFLG (WITH (TEMP (TB (GETHASH RNAME DECLTYPESARRAY)))
(* This is a marginal guess at the dependency%: we would be wrong if the user
had, e.g., dumped a record-derived decltype and loaded it into a system without
the record.)
(if (AND TB (SETQ TEMP (fetch TESTFN of TB))
[EQ COMMENTFLG (CAR (SETQ TEMP (CADDR TEMP]
(EQ (CADR TEMP)
'ASSERT%:)
(EQ (CAR (SETQ TEMP (CADDR TEMP)))
'RECORD)
(EQ RNAME (CADR TEMP)))
then (DELETETB TB])
(RECDEFTYPE
[LAMBDA (RD) (* bas%: "21-SEP-79 14:53")
(* Computes the DECLOF type corresponding to a record package type expression)
(SELECTQ (CAR RD)
(ACCESSFNS (WITH ((CRF (FASSOC 'CREATE RD)))
(if CRF
then (DECLOF (CADR CRF))
else 'ANY)))
(ARRAYRECORD 'ARRAYP)
(ASSOCRECORD 'ALIST)
(ATOMRECORD 'LITATOM)
(DATATYPE (if (LISTP (CADR RD))
then (CADADR RD)
else 'ANY))
(HASHLINK 'HARRAYP)
(PROPRECORD 'LST)
(RECORD (WITH ((FLDS (CADDR RD)))
(if (LISTP FLDS)
then 'LST
elseif [AND FLDS (EQ FLDS (CADR (FASSOC 'SUBRECORD RD]
then
(* The declaration has a top-level field equal to the subrecord name)
FLDS
else 'ANY)))
(TYPERECORD 'LISTP)
'ANY])
(REPROPTB
[LAMBDA (TB PROPS INHERITING) (* bas%: " 7-NOV-79 15:46")
(* Propgates changes in properties)
(PROG [(NEWP (for old PROPS by (CDDR PROPS) while PROPS
unless [if INHERITING
then (FINDPROP (fetch PROPS of TB)
(CAR PROPS))
else (EQUAL (CADR PROPS)
(LISTGET (fetch PROPS of TB)
(CAR PROPS] join (SETTBPROP TB (CAR PROPS)
(COPY (CADR PROPS))
INHERITING)
(LIST (CAR PROPS)
(CADR PROPS]
(DECLARE (SPECVARS NEWP))
[if NEWP
then (UNSAVETYPE TB) (* Probably not necessary, but we cant
tell)
(MAPTYPEUSERS (fetch NAME of TB)
(FUNCTION (LAMBDA (X)
(REPROPTB X NEWP T]
(* Any recursions bottom out b/c the change will have been made the first time
the type is reached)
(RETURN NEWP) (* Indicate if any changes)
])
(SETTBPROP
[LAMBDA (TB P V BLKONLY) (* bas%: " 7-NOV-79 16:55")
(SELECTQ P
(BINDFN (replace BINDFN of TB with (CREATEFNVAL V 'BINDFN)))
(EVERYFN (CREATEFNVAL V 'EVERYFN))
(SETFN (replace SETFN of TB with (CREATEFNVAL V 'SETFN)))
(TESTFN [SELECTQ (fetch NAME of TB)
((ANY NONE)
(DECLERROR "(Futile) attempt to change TESTFN of" (fetch NAME of TB)))
(replace TESTFN of TB with (CREATEFNVAL V 'TESTFN])
NIL)
(* Unless BLKONLY, must also put on property list so it is known)
(if BLKONLY
elseif (fetch PROPS of TB)
then (LISTPUT (fetch PROPS of TB)
P V)
else (replace PROPS of TB with (LIST P V])
(TBDEFPRINT
[LAMBDA (TB) (* bas%: "22-NOV-78 14:32")