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Newer
100644
1061 lines (946 sloc)
31 KB
1
;(function($B){
2
3
/*
4
Implementation of Python dictionaries
5
6
We can't use Javascript's Map here, because the behaviour is not exactly the
7
same (eg with keys that are instances of classes with a __hash__ method...)
8
and because Map is much slower than regular Javascript objects.
9
10
A Python dictionary is implemented as a Javascript objects with these
11
attributes:
12
. $version: an integer with an initial value of 0, incremented at each
13
insertion
14
. $numeric_dict: for keys of type int
15
. $string_dict and $str_hash: for keys of type str
16
. $object_dict: for keys of other types
17
18
The value associated to a key in $numeric_dict and $string_dict is a pair
19
[value, rank] where "value" is the value associated with the key and "rank"
20
is the value of the dict attribute $version when the pair is inserted. This
21
is required to keep track of the insertion order, mandatory since Python 3.7.
22
23
For keys that are not str or int, their hash value is computed. Since several
33
34
var set_ops = ["eq", "add", "sub", "and", "or", "xor", "le", "lt", "ge", "gt"]
35
36
$B.make_view = function(name, set_like){
37
var klass = $B.make_class(name, function(items){
38
return {
39
__class__: klass,
40
__dict__: _b_.dict.$factory(),
41
counter: -1,
42
items: items,
43
len: items.length
44
}
45
})
46
47
if(set_like){
48
for(var i = 0, len = set_ops.length; i < len; i++){
49
var op = "__" + set_ops[i] + "__"
50
klass[op] = (function(op){
51
return function(self, other){
52
// compare set of items to other
53
return _b_.set[op](_b_.set.$factory(self),
54
_b_.set.$factory(other))
55
}
56
})(op)
57
}
58
}
59
klass.__iter__ = function(self){
60
var it = klass.$iterator.$factory(self.items)
61
it.len_func = self.len_func
62
return it
63
}
69
klass.__repr__ = function(self){
70
return klass.$infos.__name__ + '(' + _b_.repr(self.items) + ')'
71
}
72
74
return klass
75
}
76
77
// Special version of __next__ for iterators on dict keys / values / items.
78
// Checks that the dictionary size didn't change during iteration.
79
function dict_iterator_next(self){
80
if(self.len_func() != self.len){
82
}
83
self.counter++
84
if(self.counter < self.items.length){
85
return self.items[self.counter]
86
}
87
throw _b_.StopIteration.$factory("StopIteration")
88
}
89
99
}
100
101
dict.$to_obj = function(d){
102
// Function applied to dictionary that only have string keys,
103
// return a Javascript objects with the kays mapped to the value,
104
// excluding the insertion rank
105
var res = {}
106
for(var key in d.$string_dict){
107
res[key] = d.$string_dict[key][0]
108
}
109
return res
110
}
111
121
if(val === undefined){val = _b_.NotImplemented}
122
else if(val === null){val = $N}
126
}else{
127
for(var k in d.$numeric_dict){
128
items.push([parseFloat(k), d.$numeric_dict[k]])
129
}
133
for(var k in d.$object_dict){
134
d.$object_dict[k].forEach(function(item){
135
items.push(item)
136
})
137
}
138
// sort by insertion order
139
items.sort(function(a, b){
140
return a[1][1] - b[1][1]
141
})
142
items = items.map(function(item){return [item[0], item[1][0]]})
145
if(ix !== undefined){
146
return items.map(function(item){return item[ix]})
147
}else{
148
items.__class__ = _b_.tuple
149
return items.map(function(item){
150
item.__class__ = _b_.tuple; return item}
151
)
152
}
155
$B.dict_to_list = to_list // used in py_types.js
156
157
// Special version of __next__ for iterators on dict keys / values / items.
158
// Checks that the dictionary size didn't change during iteration.
159
function dict_iterator_next(self){
160
if(self.len_func() != self.len){
162
}
163
self.counter++
164
if(self.counter < self.items.length){
165
return self.items[self.counter]
177
si(left, _l[i][0], _l[i][1])
178
if(right.$version != right_version){
179
throw _b_.RuntimeError.$factory("dict mutated during update")
180
}
181
}
184
function rank(self, hash, key){
185
// Search if object key, with hash = hash(key), is in
186
// self.$object_dict
187
var pairs = self.$object_dict[hash]
188
if(pairs !== undefined){
189
for(var i = 0, len = pairs.length; i < len; i++){
190
if($B.rich_comp("__eq__", key, pairs[i][0])){
191
return i
192
}
193
}
194
}
195
return -1
196
}
197
206
var $ = $B.args("__contains__", 2, {self: null, key: null},
207
["self", "key"], arguments, {}, null, null),
210
if(self.$is_namespace){key = $B.to_alias(key)} // issue 1244
211
212
if(self.$jsobj){
213
return self.$jsobj[key] !== undefined
214
}
220
return self.$numeric_dict[key] !== undefined
221
}
222
223
var hash = _b_.hash(key)
224
if(self.$str_hash[hash] !== undefined &&
225
$B.rich_comp("__eq__", key, self.$str_hash[hash])){return true}
226
if(self.$numeric_dict[hash] !== undefined &&
227
$B.rich_comp("__eq__", key, hash)){return true}
228
return rank(self, hash, key) > -1
229
}
230
233
var $ = $B.args("__eq__", 2, {self: null, arg: null},
234
["self", "arg"], arguments, {}, null, null),
243
switch(typeof arg){
244
case "string":
245
if(self.$string_dict[arg] === undefined){
265
if((ix = rank(self, hash, arg)) > -1){
266
self.$object_dict[hash].splice(ix, 1)
267
}else{
273
}
274
276
var $ = $B.args("__eq__", 2, {self: null, other: null},
277
["self", "other"], arguments, {}, null, null),
283
if(self.$jsobj){self = jsobj2dict(self.$jsobj)}
284
if(other.$jsobj){other = jsobj2dict(other.$jsobj)}
295
if(!$B.rich_comp("__eq__", other.$numeric_dict[k][0],
296
self.$numeric_dict[k][0])){
300
var pairs = other.$object_dict[k],
301
flag = false
302
for(var i = 0, len = pairs.length; i < len; i++){
303
if($B.rich_comp("__eq__", k, pairs[i][0]) &&
304
$B.rich_comp("__eq__", self.$numeric_dict[k],
305
pairs[i][1])){
306
flag = true
307
break
308
}
323
var pairs = self.$object_dict[hash]
324
// Get all (key, value) pairs in other that have the same hash
325
var other_pairs = []
326
if(other.$numeric_dict[hash] !== undefined){
327
other_pairs.push([hash, other.$numeric_dict[hash]])
328
}
330
other_pairs = other_pairs.concat(other.$object_dict[hash])
331
}
332
if(other_pairs.length == 0){
333
return false
334
}
335
for(var i = 0, len_i = pairs.length; i < len_i; i++){
336
var flag = false
337
var key = pairs[i][0],
339
for(var j = 0, len_j = other_pairs.length; j < len_j; j++){
340
if($B.rich_comp("__eq__", key, other_pairs[j][0]) &&
352
}
353
355
var $ = $B.args("__getitem__", 2, {self: null, arg: null},
356
["self", "arg"], arguments, {}, null, null),
372
373
switch(typeof arg){
374
case "string":
375
if(self.$string_dict[arg] !== undefined){
383
break
384
}
385
386
// since the key is more complex use 'default' method of getting item
387
425
}
426
428
454
if(first === undefined){return $N}
455
if(second === undefined){
456
if(first.__class__ === $B.JSObject){
457
self.$jsobj = first.js
458
return $N
459
}else if(first.$jsobj){
460
self.$jsobj = {}
461
for(var attr in first.$jsobj){
462
self.$jsobj[attr] = first.$jsobj[attr]
468
}
472
arguments, {}, "first", "second")
473
var args = $.first
474
if(args.length > 1){
475
throw _b_.TypeError.$factory("dict expected at most 1 argument" +
476
", got 2")
477
}else if(args.length == 1){
478
args = args[0]
479
if(args.__class__ === dict){
480
['$string_dict', '$str_hash', '$numeric_dict', '$object_dict'].
481
forEach(function(d){
482
for(key in args[d]){self[d][key] = args[d][key]}
483
})
487
var keys = $B.$getattr(args, "keys", null)
488
if(keys !== null){
489
var gi = $B.$getattr(args, "__getitem__", null)
490
if(gi !== null){
491
// has keys and __getitem__ : it's a mapping, iterate on
492
// keys and values
493
gi = $B.$call(gi)
494
var kiter = _b_.iter($B.$call(keys)())
495
while(true){
496
try{
497
var key = _b_.next(kiter),
498
value = gi(key)
499
dict.__setitem__(self, key, value)
500
}catch(err){
501
if(err.__class__ === _b_.StopIteration){
502
break
503
}
504
throw err
505
}
506
}
507
return $N
508
}
509
}
510
if(! Array.isArray(args)){
511
args = _b_.list.$factory(args)
512
}
513
// Form "dict([[key1, value1], [key2,value2], ...])"
515
}
519
switch(typeof attr){
520
case "string":
521
self.$string_dict[attr] = kw[attr]
522
self.$str_hash[str_hash(attr)] = attr
523
break
524
case "number":
525
self.$numeric_dict[attr] = kw[attr]
526
break
527
default:
528
si(self, attr, kw[attr])
529
break
530
}
533
}
534
537
}
538
539
dict.__ior__ = function(self, other){
540
// PEP 584
541
dict.update(self, other)
542
return self
543
}
544
553
for(var k in self.$numeric_dict){_count++}
554
for(var k in self.$string_dict){_count++}
555
for(var hash in self.$object_dict){
556
_count += self.$object_dict[hash].length
557
}
561
563
576
if(cls !== dict){
577
instance.__dict__ = _b_.dict.$factory()
578
}
579
return instance
582
dict.__or__ = function(self, other){
583
// PEP 584
584
if(! _b_.isinstance(other, dict)){
585
return _b_.NotImplemented
586
}
587
var res = dict.copy(self)
588
dict.update(res, other)
589
return res
590
}
591
602
try{
603
res.push(repr(item[0]) + ": " + repr(item[1]))
604
}catch(err){
605
throw err
606
}
610
}
611
612
dict.__ror__ = function(self, other){
613
// PEP 584
614
if(! _b_.isinstance(other, dict)){
615
return _b_.NotImplemented
616
}
617
var res = dict.copy(other)
618
dict.update(res, self)
619
return res
620
}
621
624
["self", "key", "value"], arguments, {}, null, null)
625
return dict.$setitem($.self, $.key, $.value)
626
}
631
// If key is a string, set:
632
// - $string_dict[key] = [value, order] where "order" is an auto-increment
633
// unique id to keep track of insertion order
634
// - $str_hash[hash(key)] to key
635
//
636
// If key is a number, set $numeric_dict[key] = value
637
//
638
// If key is another object, compute its hash value:
639
// - if the hash is a key of $str_hash, and key == $str_hash[hash],
640
// replace $string_dict[$str_hash[hash]] by value
641
// - if the hash is a key of $numeric_dict, and hash == key, replace
642
// $numeric_dict[hash] by value
643
// - if the hash is a key of $object_dict: $object_dict[hash] is a list
644
// of [k, v] pairs. If key is equal to one of the "k", replace the
645
// matching v by value. Otherwise, add [key, value] to the list
646
// - else set $object_dict[hash] = [[key, value]]
647
//
648
// In all cases, increment attribute $version, used to detect dictionary
651
// Parameter $hash is only set if this method is called by setdefault.
652
// In this case the hash of key has already been computed and we
653
// know that the key is not present in the dictionary, so it's no
654
// use computing hash(key) again, nor testing equality of keys
656
if(self.$from_js){
657
// dictionary created by method to_dict of JSObject instances
658
value = $B.pyobj2jsobj(value)
659
}
663
// If class attribute __init__ or __new__ are reset,
664
// the factory function has to change
665
self.$jsobj.$factory = $B.$instance_creator(self.$jsobj)
666
}
667
}else{
675
if(self.$string_dict === undefined){
676
console.log("pas de string dict", self, key, value)
677
}
678
self.$string_dict[key] = [value, self.$version]
705
// If $setitem is called from setdefault, don't test equality of key
706
// with any object
707
if($hash){
708
if(self.$object_dict[$hash] !== undefined){
712
}
713
self.$version++
714
return $N
715
}
716
var ix = rank(self, hash, key)
717
if(ix > -1){
718
// reset value
729
}
730
734
735
// add "reflected" methods
737
739
// Remove all items from the dictionary.
758
}
759
761
// Return a shallow copy of the dictionary
767
return res
768
}
769
772
var $ = $B.args("fromkeys", 3, {cls: null, keys: null, value: null},
773
["cls", "keys", "value"], arguments, {value: _b_.None}, null, null),
777
// class method
782
while(1){
783
try{
784
var key = _b_.next(keys_iter)
785
if(klass === dict){dict.$setitem(res, key, value)}
786
else{$B.$getattr(res, "__setitem__")(key, value)}
787
}catch(err){
789
return res
790
}
791
throw err
792
}
793
}
794
}
795
797
var $ = $B.args("get", 3, {self: null, key: null, _default: null},
798
["self", "key", "_default"], arguments, {_default: $N}, null, null)
801
catch(err){
802
if(_b_.isinstance(err, _b_.KeyError)){return $._default}
803
else{throw err}
804
}
805
}
806
807
var dict_items = $B.make_view("dict_items", true)
808
dict_items.$iterator = $B.make_iterator_class("dict_itemiterator")
812
var _len = arguments.length - 1,
813
_msg = "items() takes no arguments (" + _len + " given)"
816
var it = dict_items.$factory(to_list(self))
817
it.len_func = function(){return dict.__len__(self)}
818
return it
821
var dict_keys = $B.make_view("dict_keys", true)
822
dict_keys.$iterator = $B.make_iterator_class("dict_keyiterator")
826
var _len = arguments.length - 1,
827
_msg = "keys() takes no arguments (" + _len + " given)"
830
var it = dict_keys.$factory(to_list(self, 0))
831
it.len_func = function(){return dict.__len__(self)}
832
return it
837
var missing = {},
838
$ = $B.args("pop", 3, {self: null, key: null, _default: null},
839
["self", "key", "_default"], arguments, {_default: missing}, null, null),
844
try{
847
return res
848
}catch(err){
851
throw err
852
}
853
throw err
854
}
855
}
856
867
}
868
871
var $ = $B.args("setdefault", 3, {self: null, key: null, _default: null},
872
["self", "key", "_default"], arguments, {_default: $N}, null, null),
878
catch(err){
883
var hash = key.$hash
884
key.$hash = undefined
885
dict.$setitem(self, key, _default, hash)
886
return _default
887
}
888
}
889
892
var $ = $B.args("update", 1, {"self": null}, ["self"], arguments,
893
{}, "args", "kw"),
894
self = $.self,
895
args = $.args,
896
kw = $.kw
897
if(args.length > 0){
898
var o = args[0]
905
var _keys = _b_.list.$factory($B.$call($B.$getattr(o, "keys"))())
906
for(var i = 0, len = _keys.length; i < len; i++){
908
dict.$setitem(self, _keys[i], _value)
909
}
910
}else{
911
var it = _b_.iter(o),
912
i = 0
913
while(true){
914
try{
915
var item = _b_.next(it)
916
}catch(err){
917
if(err.__class__ === _b_.StopIteration){break}
918
throw err
919
}
920
try{
921
key_value = _b_.list.$factory(item)
922
}catch(err){
923
throw _b_.TypeError.$factory("cannot convert dictionary" +
924
" update sequence element #" + i + " to a sequence")
925
}
926
if(key_value.length !== 2){
927
throw _b_.ValueError.$factory("dictionary update " +
928
"sequence element #" + i + " has length " +
929
key_value.length + "; 2 is required")
930
}
931
dict.$setitem(self, key_value[0], key_value[1])
932
i++
935
}
939
}
940
941
var dict_values = $B.make_view("dict_values")
942
dict_values.$iterator = $B.make_iterator_class("dict_valueiterator")
946
var _len = arguments.length - 1,
947
_msg = "values() takes no arguments (" + _len + " given)"
950
var it = dict_values.$factory(to_list(self, 1))
951
it.len_func = function(){return dict.__len__(self)}
952
return it
957
var args = [res]
958
for(var i = 0, len = arguments.length; i < len ; i++){
959
args.push(arguments[i])
960
}
961
dict.__init__.apply(null, args)
962
return res
963
}
965
_b_.dict = dict
969
// This must be done after set_func_names, otherwise dict.fromkeys doesn't
970
// have the attribute $infos
971
dict.fromkeys = _b_.classmethod.$factory(dict.fromkeys)
972
973
$B.getset_descriptor = $B.make_class("getset_descriptor",
974
function(klass, attr){
975
return {
976
__class__: $B.getset_descriptor,
977
cls: klass,
978
attr: attr
979
}
980
}
981
)
982
983
$B.getset_descriptor.__repr__ = $B.getset_descriptor.__str__ = function(self){
984
return `<attribute '${self.attr}' of '${self.cls.$infos.__name__}' objects>`
985
}
986
987
$B.set_func_names($B.getset_descriptor, "builtins")
988
993
// obj is a dictionary, with $string_dict table such that
994
// obj.$string_dict[key] = [value, rank]
995
// Transform it into an object with attribute $jsobj such that
996
// res.$jsobj[key] = value
997
var res = $B.obj_dict(dict.$to_obj(obj))
1007
throw _b_.TypeError.$factory("'mappingproxy' object does not support " +
1008
"item assignment")
1011
for(var attr in dict){
1012
if(mappingproxy[attr] !== undefined ||
1013
["__class__", "__mro__", "__new__", "__init__", "__delitem__",
1014
"clear", "fromkeys", "pop", "popitem", "setdefault",
1015
"update"].indexOf(attr) > -1){
1016
continue
1017
}
1018
if(typeof dict[attr] == "function"){
1019
mappingproxy[attr] = (function(key){
1020
return function(){
1021
return dict[key].apply(null, arguments)
1022
}
1023
})(attr)
1024
}else{
1025
mappingproxy[attr] = dict[attr]
1026
}
1027
}
1028
1035
if(x[attr] === null){
1036
d.$string_dict[attr] = [_b_.None, d.$version]
1037
}else if(x[attr] === undefined){
1052
if(klass !== undefined && klass.$native){
1053
throw _b_.AttributeError.$factory(klass.__name__ +
1061
})(__BRYTHON__)