aboutsummaryrefslogtreecommitdiff
path: root/src/interp/cattable.boot
blob: d86290f46b2eb8eaae5abf933d256eb5bdd3257b (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
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
-- Copyright (C) 1991-2002, The Numerical Algorithms Group Ltd.
-- All rights reserved.
-- Copyright (C) 2007-2011, 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 simpbool
import c_-util
namespace BOOT
module cattable where
  hasCat: (%Instantiation,%Instantiation) -> %Code

hasCat(dom,cat) ==
  cat.op is "Type"  -- every domain is a Type
    or constructorHasCategoryFromDB [dom.op,:cat.op]

showCategoryTable con ==
  [[b,:val] for (key :=[a,:b]) in HKEYS _*HASCATEGORY_-HASH_*
     | symbolEq?(a,con) and (val := tableValue(_*HASCATEGORY_-HASH_*,key))]

displayCategoryTable(:options) ==
  conList := IFCAR options
  SETQ($ct,hashTable 'EQ)
  for (key:=[a,:b]) in HKEYS _*HASCATEGORY_-HASH_* repeat
    tableValue($ct,a) := [[b,:tableValue(_*HASCATEGORY_-HASH_*,key)],:tableValue($ct,a)]
  for id in HKEYS $ct | null conList or symbolMember?(id,conList) repeat
    sayMSG [:bright id,'"extends:"]
    PRINT tableValue($ct,id)

genCategoryTable() ==
  SETQ(_*ANCESTORS_-HASH_*,  hashTable 'EQ)
  SETQ(_*HASCATEGORY_-HASH_*,hashTable 'EQUAL)
  genTempCategoryTable()
  domainTable :=
    [addDomainToTable(con,getConstrCat getConstructorCategoryFromDB con)
      for con in allConstructors() | getConstructorKindFromDB con is "domain"]
  -- $nonLisplibDomains, $noCategoryDomains are set in BUILDOM BOOT
  specialDs := SETDIFFERENCE($nonLisplibDomains,$noCategoryDomains)
  domainTable:= [:[addDomainToTable(id, getConstrCat eval([id]).3)
    for id in specialDs], :domainTable]
  for [id,:entry] in domainTable repeat
    for [a,:b] in encodeCategoryAlist(id,entry) repeat
      tableValue(_*HASCATEGORY_-HASH_*,[id,:a]) := b
  simpTempCategoryTable()
  -- compressHashTable _*ANCESTORS_-HASH_*
  simpCategoryTable()
  -- compressHashTable _*HASCATEGORY_-HASH_*

simpTempCategoryTable() ==
  for id in HKEYS _*ANCESTORS_-HASH_* repeat
    for (u:=[a,:b]) in getConstructorAncestorsFromDB id repeat
      u.rest := simpHasPred b

simpCategoryTable() == main where
  main() ==
    for key in HKEYS _*HASCATEGORY_-HASH_* repeat
      entry := tableValue(_*HASCATEGORY_-HASH_*,key)
      null entry => tableRemove!(_*HASCATEGORY_-HASH_*,key)
      change :=
        atom opOf entry => simpHasPred entry
        [[x,:npred] for [x,:pred] in entry | npred := simpHasPred pred]
      tableValue(_*HASCATEGORY_-HASH_*,key) := change

simpHasPred(pred,:options) == main where
  main() ==
    $hasArgs: local := IFCDR IFCAR options
    simp pred
  simp pred ==
    pred is [op,:r] =>
      op is "has" => simpHas(pred,first r,second r)
      op is 'HasCategory => simp ["has",first r,simpDevaluate second r]
      op is 'HasSignature =>
         [op,sig] := simpDevaluate second r
         ["has",first r,['SIGNATURE,op,sig]]
      op is 'HasAttribute =>
        form := ["has",a := first r,['ATTRIBUTE,b := simpDevaluate second r]]
        simpHasAttribute(form,a,b)
      op in '(AND OR NOT) =>
        null (u := MKPF([simp p for p in r],op)) => nil
        u is '%true or u is '(QUOTE T) => true
        simpBool u
      op is 'hasArgs => ($hasArgs => $hasArgs = r; pred)
      null r and opOf op = "has" => simp first pred
      pred is '%true or pred is '(QUOTE T) => true
      op1 := symbolLassoc(op,'((and . AND)(or . OR)(not . NOT))) =>
        simp [op1,:r]
      simp first pred   --REMOVE THIS HACK !!!!
    pred in '(T etc) => pred
    null pred => nil
    pred
  simpDevaluate a == eval substitute('QUOTE,'devaluate,a)
  simpHas(pred,a,b) ==
    b is ['ATTRIBUTE,attr] => simpHasAttribute(pred,a,attr)
    b is ['SIGNATURE,op,sig] => simpHasSignature(pred,a,op,sig)
    IDENTP a or hasIdent b => pred
    npred := evalHas pred
    IDENTP npred or null hasIdent npred => npred
    pred
  evalHas (pred := ["has",d,cat]) ==
    x := hasCat(d,cat)
    y := rest cat =>
      npred := or/[p for [args,:p] in x | y = args] => simp npred
      false  --if not there, it is false
    x

simpHasSignature(pred,conform,op,sig) == --eval w/o loading
  IDENTP conform => pred
  [conname,:args] := conform
  n := #sig
  u := symbolLassoc(op,getConstructorOperationsFromDB conname)
  candidates := [x for (x := [sig1,:.]) in u | #sig1 = #sig]  or return false
  match := or/[x for (x := [sig1,:.]) in candidates
                | sig = sublisFormal(args,sig1)] or return false
  simpHasPred(match is [sig,.,:p] and sublisFormal(args,p) or true)

simpHasAttribute(pred,conform,attr) ==  --eval w/o loading
  IDENTP conform => pred
  conname := conform.op
  getConstructorKindFromDB conname is "category" =>
      simpCatHasAttribute(conform,attr)
  asharpConstructorName? conname =>
    p := LASSOC(attr,getConstructorAttributesFromDB conname) =>
      simpHasPred sublisFormal(rest conform,p)
  infovec := dbInfovec conname
  k := LASSOC(attr,infovec.2) or return nil --if not listed then false
  k = 0 => true
  $domain => kTestPred k    --from koOps
  predvec := $predvec or sublisFormal(conform.args,
      getConstructorPredicatesFromDB conname)
  simpHasPred predvec.(k - 1)

simpCatHasAttribute(domform,attr) ==
  conform := getConstructorForm opOf domform
  catval :=  eval mkEvalable conform
  if atom KDR attr then attr := IFCAR attr
  pred :=
    u := LASSOC(attr,catval . 2) => first u
    return false                            --exit: not there
  pred = true => true
  eval applySubst(pairList(conform.args,domform.args),pred)

hasIdent pred ==
  pred is [op,:r] =>
    op is 'QUOTE => false
    or/[hasIdent x for x in r]
  pred is '_$ => false
  IDENTP pred => true
  false

addDomainToTable(id,catl) ==
  alist:= nil
  for cat in catl repeat
    cat is ['CATEGORY,:.] => nil
    cat is ['IF,pred,cat1,:.] =>
      newAlist:=
        [[a,:quickAnd(pred,b)] for [a,:b] in getCategoryExtensionAlist0 cat1]
      alist:= [:alist,:newAlist]
    alist:= [:alist,:getCategoryExtensionAlist0 cat]
  [id,:alist]

domainHput(table,key:=[id,:a],b) ==
  tableValue(table,key) := b

genTempCategoryTable() ==
  --generates hashtable with key=categoryName and value of the form
  --     ((form . pred) ..) meaning that
  --           "IF pred THEN ofCategory(key,form)"
  --  where form can involve #1, #2, ... the parameters of key
  for con in allConstructors()  repeat
    getConstructorKindFromDB con is "category" =>
      addToCategoryTable con
  for id in HKEYS _*ANCESTORS_-HASH_* repeat
    item := tableValue(_*ANCESTORS_-HASH_*, id) 
    for (u:=[.,:b]) in item repeat
      u.rest := simpCatPredicate simpBool b
    tableValue(_*ANCESTORS_-HASH_*,id) := listSort(function GLESSEQP,item)

addToCategoryTable con ==
  -- adds an entry to $tempCategoryTable with key=con and alist entries
  u := getConstructorModemapFromDB(con).mmDC --domain
  alist := getCategoryExtensionAlist u
  tableValue(_*ANCESTORS_-HASH_*,first u) := alist
  alist

encodeCategoryAlist(id,alist) ==
  newAl:= nil
  for [a,:b] in alist repeat
    [key,:argl] := a
    newEntry:=
      argl => [[argl,:b]]
      b
    u:= assoc(key,newAl) =>
      argl => u.rest := encodeUnion(id,first newEntry,rest u)
      if newEntry ~= rest u then
        p:= moreGeneralCategoryPredicate(id,newEntry,rest u) => u.rest := p
        sayMSG '"Duplicate entries:"
        PRINT [newEntry,rest u]
    newAl:= [[key,:newEntry],:newAl]
  newAl

encodeUnion(id,new:=[a,:b],alist) ==
  u := assoc(a,alist) =>
    u.rest := moreGeneralCategoryPredicate(id,b,rest u)
    alist
  [new,:alist]

moreGeneralCategoryPredicate(id,new,old) ==
  old is 'T or new is 'T => 'T
  old is ["has",a,b] and new is ["has",=a,c] =>
    tempExtendsCat(b,c) => new
    tempExtendsCat(c,b) => old
    ['OR,old,new]
  mkCategoryOr(new,old)

mkCategoryOr(new,old) ==
  old is ['OR,:l] => simpCategoryOr(new,l)
  ['OR,old,new]

simpCategoryOr(new,l) ==
  newExtendsAnOld:= false
  anOldExtendsNew:= false
  ["has",a,b] := new
  newList:= nil
  for pred in l repeat
    pred is ["has",=a,c] =>
      tempExtendsCat(c,b) => anOldExtendsNew:= true
      if tempExtendsCat(b,c) then newExtendsAnOld:= true
      newList:= [pred,:newList]
    newList:= [pred,:newList]
  if not newExtendsAnOld then newList:= [new,:newList]
  newList is [.] => first newList
  ['OR,:newList]

tempExtendsCat(b,c) ==
  or/[first c = a for [[a,:.],:.] in getConstructorAncestorsFromDB first b]

getCategoryExtensionAlist0 cform ==
  [[cform,:'T],:getCategoryExtensionAlist cform]

getCategoryExtensionAlist cform ==
  --avoids substitution as much as possible
  u:= getConstructorAncestorsFromDB first cform => formalSubstitute(cform,u)
  mkCategoryExtensionAlist cform

formalSubstitute(form:=[.,:argl],u) ==
  isFormalArgumentList argl => u
  applySubst(pairList($FormalMapVariableList,argl),u)

isFormalArgumentList argl ==
  and/[x=fa for x in argl for fa in $FormalMapVariableList]

mkCategoryExtensionAlist cform ==
  not cons? cform => nil
  cop := first cform
  builtinCategoryName? cop => mkCategoryExtensionAlistBasic cform
  catlist := formalSubstitute(cform, first getConstructorExports(cform, true))
  extendsList:= nil
  for [cat,:pred] in catlist repeat
    newList := getCategoryExtensionAlist0 cat
    finalList :=
      pred is 'T => newList
      [[a,:quickAnd(b,pred)] for [a,:b] in newList]
    extendsList:= catPairUnion(extendsList,finalList,cop,cat)
  extendsList

-- following code to handle Unions Records Mapping etc.
mkCategoryExtensionAlistBasic cform ==
  cop := first cform
--category:= eval cform
  category :=      -- changed by RSS on 7/29/87
    macrop cop => eval cform
    apply(cop, rest cform)
  extendsList:= [[x,:'T] for x in category.4.0]
  for [cat,pred,:.] in category.4.1 repeat
    newList := getCategoryExtensionAlist0 cat
    finalList :=
      pred is 'T => newList
      [[a,:quickAnd(b,pred)] for [a,:b] in newList]
    extendsList:= catPairUnion(extendsList,finalList,cop,cat)
  extendsList

catPairUnion(oldList,newList,op,cat) ==
  for pair in newList repeat
    u:= assoc(first pair,oldList) =>
      rest u = rest pair => nil
      u.rest := addConflict(rest pair,rest u) where addConflict(new,old) ==
        quickOr(new,old)
    oldList:= [pair,:oldList]
  oldList

simpCatPredicate p ==
  p is ['OR,:l] =>
    (u:= simpOrUnion l) is [p] => p
    ['OR,:u]
  p

simpOrUnion l ==
  if l then simpOrUnion1(first l,simpOrUnion rest l)
  else l

simpOrUnion1(x,l) ==
  null l => [x]
  p:= mergeOr(x,first l) => [p,:rest l]
  [first l,:simpOrUnion1(x,rest l)]

mergeOr(x,y) ==
  x is ["has",a,b] and y is ["has",=a,c] =>
    testExtend(b,c) => y
    testExtend(c,b) => x
    nil
  nil

testExtend(a:=[op,:argl],b) ==
  (u:= getConstructorAncestorsFromDB op) and (val:= LASSOC(b,u)) =>
    formalSubstitute(a,val)
  nil

getConstrCat(x) ==
-- gets a different representation of the constructorCategory from the
-- lisplib, which is a list of named categories or conditions
  x:= if x is ['Join,:y] then y else [x]
  cats:= nil
  for y in x repeat
    y is ['CATEGORY,.,:z] =>
      for zz in z repeat cats := makeCatPred(zz, cats, true)
    cats:= [y,:cats]
  cats:= reverse! cats
  cats


makeCatPred(zz, cats, thePred) ==
  if zz is ['IF,curPred := ["has",z1,z2],ats,.] then
    ats := if ats is ['PROGN,:atl] then atl else [ats]
    for at in ats repeat
      if at is ['ATTRIBUTE,z3] and cons? z3 and
        constructor? first z3 then
          cats:= [['IF,quickAnd(["has",z1,z2], thePred),z3,'%noBranch],:cats]
      at is ['IF, pred, :.] =>
        cats := makeCatPred(at, cats, curPred)
  cats

getConstructorExports(conform,:options) == categoryParts(conform,
  getConstructorCategoryFromDB opOf conform,IFCAR options)

categoryParts(conform,category,:options) == main where
  main() ==
    addCtor? := IFCAR options  --means to include constructors as well
    $attrlist: local := nil
    $oplist  : local := nil
    $conslist: local := nil
    conname := opOf conform
    for x in exportsOf(category) repeat build(x,true)
    $attrlist := listSort(function GLESSEQP,$attrlist)
    $oplist   := listSort(function GLESSEQP,$oplist)
    res := [$attrlist,:$oplist]
    if addCtor? then
      res := [listSort(function GLESSEQP,$conslist),:res]
    if getConstructorKindFromDB conname is "category" then
      tvl := TAKE(#rest conform,$TriangleVariableList)
      res := applySubst(pairList(tvl,$FormalMapVariableList),res)
    res
  build(item,pred) ==
    item is ['SIGNATURE,op,sig,:.] => $oplist   := [[opOf op,sig,:pred],:$oplist]
    --note: opOf is needed!!! Bug in compiler puts in (One) and (Zero)
    item is ['ATTRIBUTE,attr] =>
      constructor? opOf attr =>
        $conslist := [[attr,:pred],:$conslist]
        nil
      opOf attr is 'nothing => 'skip
      $attrlist := [[opOf attr,IFCDR attr,:pred],:$attrlist]
    item is ['TYPE,op,type] =>
        $oplist := [[op,[type],:pred],:$oplist]
    item is ['IF,pred1,s1,s2] =>
      build(s1,quickAnd(pred,pred1))
      s2 => build(s2,quickAnd(pred,['NOT,pred1]))
    null item => 'ok
    item is "%noBranch" => 'ok
    item is ['PROGN,:r] => for x in r repeat build(x,pred)
    systemError '"build error"
  exportsOf(target) ==
    target is ['CATEGORY,.,:r] => r
    target is ['Join,:r,f] =>
      for x in r repeat $conslist := [[x,:true],:$conslist]
      exportsOf f
    $conslist := [[target,:true],:$conslist]
    nil

--------------------> NEW DEFINITION (override in patches.lisp.pamphlet)
compressHashTable ht ==
-- compresses hash table ht, to give maximal sharing of cells
  sayBrightlyNT '"compressing hash table..."
  $found: local := hashTable 'EQUAL
  for x in HKEYS ht repeat compressSexpr(tableValue(ht,x),nil,nil)
  sayBrightly   "done"
  ht

compressSexpr(x,left,right) ==
-- recursive version of compressHashTable
  atom x => nil
  u:= tableValue($found,x) =>
    left => left.first := u
    right => right.rest := u
    nil
  compressSexpr(first x,x,nil)
  compressSexpr(rest x,nil,x)
  tableValue($found,x) := x

squeezeList(l) ==
-- changes the list l, so that is has maximal sharing of cells
  $found:local:= nil
  squeeze1 l

squeeze1(l) ==
-- recursive version of squeezeList
  x:= first l
  y:=
    atom x => x
    z:= member(x,$found) => first z
    $found:= [x,:$found]
    squeeze1 x
  l.first := y
  x:= rest l
  y:=
    atom x => x
    z:= member(x,$found) => first z
    $found:= [x,:$found]
    squeeze1 x
  l.rest := y

updateCategoryTable(cname,kind) ==
  $updateCatTableIfTrue =>
    kind is 'package => nil
    kind is 'category => updateCategoryTableForCategory(cname)
    updateCategoryTableForDomain(cname,getConstrCat(
      getConstructorCategoryFromDB cname))
--+
  kind is 'domain =>
    updateCategoryTableForDomain(cname,getConstrCat(
      getConstructorCategoryFromDB cname))

updateCategoryTableForCategory(cname) ==
  clearTempCategoryTable([[cname,'category]])
  addToCategoryTable(cname)
  for id in HKEYS _*ANCESTORS_-HASH_* repeat
      for (u:=[.,:b]) in getConstructorAncestorsFromDB id repeat
        u.rest := simpCatPredicate simpBool b

updateCategoryTableForDomain(cname,category) ==
  clearCategoryTable(cname)
  [cname,:domainEntry]:= addDomainToTable(cname,category)
  for [a,:b] in encodeCategoryAlist(cname,domainEntry) repeat
    tableValue(_*HASCATEGORY_-HASH_*,[cname,:a]) := b
  $doNotCompressHashTableIfTrue => _*HASCATEGORY_-HASH_*
  -- compressHashTable _*HASCATEGORY_-HASH_*

clearCategoryTable($cname) ==
  MAPHASH('clearCategoryTable1,_*HASCATEGORY_-HASH_*)

clearCategoryTable1(key,val) ==
  (first key=$cname)=> tableRemove!(_*HASCATEGORY_-HASH_*,key)
  nil

clearTempCategoryTable(catNames) ==
  for key in HKEYS(_*ANCESTORS_-HASH_*) repeat
    symbolMember?(key,catNames) => nil
    extensions:= nil
    for (extension:= [catForm,:.]) in getConstructorAncestorsFromDB key
      repeat
        symbolMember?(first catForm,catNames) => nil
        extensions:= [extension,:extensions]
    tableValue(_*ANCESTORS_-HASH_*,key) := extensions