aboutsummaryrefslogtreecommitdiff
path: root/src/interp/package.boot
blob: 38ae9bd8eb72e0c2d633e4804c0a2a7b69994f88 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
-- 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.


import clam
namespace BOOT

isPackageFunction() ==
  -- called by compile/putInLocalDomainReferences
--+
  nil

isCategoryPackageName nam ==
  p := PNAME opOf nam
  p.(MAXINDEX p) = char '_&

processFunctorOrPackage(form,signature,data,localParList,m,e) ==
--+
  processFunctor(form,signature,data,localParList,e)
 
processPackage($definition is [name,:args],[$catsig,:argssig],code,locals,$e) ==
  $GENNO: local:= 0 --for GENVAR()
  $catsig: local := nil
               --used in ProcessCond
  $ResetItems: local := nil
       --stores those items that get SETQed, and may need re-processing
  $catvecList: local:= [$domainShell]
  $catNames: local:= ["$"]
--PRINT $definition
--PRINT ($catsig,:argssig)
--PRETTYPRINT code
  catvec:= $domainShell --from compDefineFunctor
  $getDomainCode:= optFunctorBody $getDomainCode
      --the purpose of this is so ProcessCond recognises such items
  code:= PackageDescendCode(code,true,nil)
  if delete(nil,locals) then code:=[:code,:(setPackageCode locals)] where
      setPackageCode locals ==
          locals':=[[u,:i] for u in locals for i in 0.. | u]
          locals'' :=[]
          while locals' repeat
            for v in locals' repeat
              [u,:i]:=v
              if and/[EQ(v,v') or not subTree(u,CAR v') for v' in locals']
              then
                locals'':=[v,:locals'']
                locals':=delete(v,locals')
          precomp:=code:=[]
          for elem in locals'' repeat
            [u,:i]:=elem
            if ATOM u then u':=u
            else
              u':=opt(u,precomp) where
                  opt(u,alist) ==
                    ATOM u => u
                    for v in u repeat
                      if (a:=assoc(v,alist)) then
                        [.,:i]:=a
                        u:=replace(v,["getShellEntry","$",i],u) where
                           replace(old,new,l) ==
                             l isnt [h,:t] => l
                             h = old => [new,:t]
                             [h,:replace(old,new,t)]
                      v':=opt(v,alist)
                      EQ(v,v') => nil
                      u:=replace(v,v',u)
                    u
              precomp:=[elem,:precomp]
            code:=[["setShellEntry","$",i,u'],:code]
          nreverse code
  code:=
    ["PROGN",:$getDomainCode,["%LET","$",["newShell",#locals]],
                           --It is important to place this code here,
                           --after $ is set up
                   --slam functor with shell
                   --the order of steps in this PROGN are critical
      addToSlam($definition,"$"),code,[
        "SETELT","$",0, mkDomainConstructor $definition],:
-- If we call addMutableArg this early, then recurise calls to this domain
-- (e.g. while testing predicates) will generate new domains => trouble
--      "SETELT","$",0,addMutableArg mkDomainConstructor $definition],:
          [["SETELT","$",position(name,locals),name]
            for name in $ResetItems | MEMQ(name,locals)],
             :[($mutableDomain => '(RPLACD (LASTNODE (ELT $ 0))
                                           (LIST (GENSYM)));[]) ],
              "$"]
  for u in $getDomainCode repeat
    u is ["%LET",.,u'] and u' is ['getDomainView,.,u''] =>
      $packagesUsed:=union(CategoriesFromGDC u'',$packagesUsed)
  $packagesUsed:=union($functorLocalParameters,$packagesUsed)
  $getDomainCode:= nil
     --if we didn't kill this, DEFINE would insert it in the wrong place
  optFunctorBody code
 
subTree(u,v) ==
  v=u => true
  ATOM v => nil
  or/[subTree(u,v') for v' in v]
 
mkList u ==
  u => ["LIST",:u]
  nil
 
setPackageLocals(pac,locs) ==
  for var in locs for i in 0.. | var^=nil repeat pac.i:= var
 
PackageDescendCode(code,flag,viewAssoc) ==
               --flag is true if we are walking down code always executed
               --nil if we are in conditional code
  code=nil => nil
  code="%noBranch" => nil
  code is ["add",base,:codelist] =>
    systemError '"packages may not have add clauses"
  code is ["PROGN",:codelist] =>
    ["PROGN",:
      [v for u in codelist | (v:= PackageDescendCode(u,flag,viewAssoc))^=nil]]
  code is ["COND",:condlist] =>
    c:=
      ["COND",:
        [[u2:= ProcessCond(first u,viewAssoc),:
         (if null u2
             then nil
             else
              [PackageDescendCode(v,flag and TruthP u2,
                if first u is ["HasCategory",dom,cat]
                   then [[dom,:cat],:viewAssoc]
                   else viewAssoc) for v in rest u])] for u in condlist]]
    TruthP CAADR c => ["PROGN",:CDADR c]
    c
  code is ["%LET",name,body,:.] =>
    if not MEMQ(name,$ResetItems) then $ResetItems:= [name,:$ResetItems]
    if body is [a,:.] and isFunctor a
      then $packagesUsed:=[body,:$packagesUsed]
    code
  code is ["CodeDefine",sig,implem] =>
             --Generated by doIt in COMPILER BOOT
    dom:= "$"
    dom:=
      u:= LASSOC(dom,viewAssoc) => ["getDomainView",dom,u]
      dom
    body:= ["CONS",implem,dom]
    SetFunctionSlots(sig,body,flag,"original")
  code is [":",:.] => (RPLACA(code,"LIST"); RPLACD(code,NIL))
      --Yes, I know that's a hack, but how else do you kill a line?
  code is ["LIST",:.] => nil
  code is ["MDEF",:.] => nil
  code is ["devaluate",:.] => nil
  code is ["call",:.] => code
  code is ["SETELT",:.] => code
  code is ["QSETREFV",:.] => code
  code is ["setShellEntry",:.] => code
  stackWarning('"unknown Package code: %1 ",[code])
  code
 
mkOperatorEntry(domainOrPackage,opSig is [op,sig,:flag],pred,count) ==
  domainOrPackage^="domain" =>
    [opSig,pred,["PAC","$",name]] where
      name() == encodeFunctionName(op,domainOrPackage,sig,":",count)
  null flag => [opSig,pred,["ELT","$",count]]
  first flag="constant" => [[op,sig],pred,["CONST","$",count]]
  systemError ["unknown variable mode: ",flag]
 
optPackageCall(x,["PAC",packageVariableOrForm,functionName],arglist) ==
  RPLACA(x,functionName)
  RPLACD(x,[:arglist,packageVariableOrForm])
  x
 
--% Code for encoding function names inside package or domain
 
encodeFunctionName(fun,package is [packageName,:arglist],signature,sep,count)
   ==
    signature':= MSUBST("$",package,signature)
    reducedSig:= mkRepititionAssoc [:rest signature',first signature']
    encodedSig:=
      ("STRCONC"/[encodedPair for [n,:x] in reducedSig]) where
        encodedPair() ==
          n=1 => encodeItem x
          STRCONC(STRINGIMAGE n,encodeItem x)
    encodedName:= INTERNL(getAbbreviation(packageName,#arglist),";",
        encodeItem fun,";",encodedSig, sep,STRINGIMAGE count)
    if $LISPLIB then
      $lisplibSignatureAlist:=
        [[encodedName,:signature'],:$lisplibSignatureAlist]
    encodedName
 
splitEncodedFunctionName(encodedName, sep) ==
    -- [encodedPackage, encodedItem, encodedSig, sequenceNo] or NIL
    -- sep0 is the separator used in "encodeFunctionName".
    sep0 := '";"
    if not STRINGP encodedName then
        encodedName := STRINGIMAGE encodedName
    null (p1 := STRPOS(sep0, encodedName, 0,    '"*")) => nil
    null (p2 := STRPOS(sep0, encodedName, p1+1, '"*")) => 'inner
--  This is picked up in compile for inner functions in partial compilation
    null (p3 := STRPOS(sep,  encodedName, p2+1, '"*")) => nil
    s1 := SUBSTRING(encodedName, 0,    p1)
    s2 := SUBSTRING(encodedName, p1+1, p2-p1-1)
    s3 := SUBSTRING(encodedName, p2+1, p3-p2-1)
    s4 := SUBSTRING(encodedName, p3+1, nil)
    [s1, s2, s3, s4]
 
mkRepititionAssoc l ==
  mkRepfun(l,1) where
    mkRepfun(l,n) ==
      null l => nil
      l is [x] => [[n,:x]]
      l is [x, =x,:l'] => mkRepfun(rest l,n+1)
      [[n,:first l],:mkRepfun(rest l,1)]
 
encodeItem x ==
  x is [op,:argl] => getCaps op
  IDENTP x => PNAME x
  STRINGIMAGE x
 
getCaps x ==
  s:= STRINGIMAGE x
  clist:= [c for i in 0..MAXINDEX s | UPPER_-CASE_-P (c:= s.i)]
  null clist => '"__"
  "STRCONC"/[first clist,:[L_-CASE u for u in rest clist]]
 
--% abbreviation code
 
getAbbreviation(name,c) ==
  --returns abbreviation of name with c arguments
  x := constructor? name
  X := ASSQ(x,$abbreviationTable) =>
    N:= ASSQ(name,rest X) =>
      C:= ASSQ(c,rest N) => rest C --already there
      newAbbreviation:= mkAbbrev(X,x)
      RPLAC(rest N,[[c,:newAbbreviation],:rest N])
      newAbbreviation
    newAbbreviation:= mkAbbrev(X,x)
    RPLAC(rest X,[[name,[c,:newAbbreviation]],:rest X])
    newAbbreviation
  $abbreviationTable:= [[x,[name,[c,:x]]],:$abbreviationTable]
  x
 
mkAbbrev(X,x) == addSuffix(alistSize rest X,x)
 
alistSize c ==
  count(c,1) where
    count(x,level) ==
      level=2 => #x
      null x => 0
      count(CDAR x,level+1)+count(rest x,level)
 
addSuffix(n,u) ==
  ALPHA_-CHAR_-P (s:= STRINGIMAGE u).(MAXINDEX s) => INTERN STRCONC(s,STRINGIMAGE n)
  INTERNL STRCONC(s,STRINGIMAGE ";",STRINGIMAGE n)