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
|
from __future__ import annotations
from collections.abc import Callable
from enum import Flag, auto
from typing import (
Any,
Generic,
Iterable,
Literal,
ParamSpec,
TypeAlias,
TypeVar,
cast,
)
from ._cru import CRU
from ._const import CruPlaceholder
_P = ParamSpec("_P")
_T = TypeVar("_T")
class CruRawFunctions:
@staticmethod
def none(*_v, **_kwargs) -> None:
return None
@staticmethod
def true(*_v, **_kwargs) -> Literal[True]:
return True
@staticmethod
def false(*_v, **_kwargs) -> Literal[False]:
return False
@staticmethod
def identity(v: _T) -> _T:
return v
@staticmethod
def only_you(v: _T, *_v, **_kwargs) -> _T:
return v
@staticmethod
def equal(a: Any, b: Any) -> bool:
return a == b
@staticmethod
def not_equal(a: Any, b: Any) -> bool:
return a != b
@staticmethod
def not_(v: Any) -> Any:
return not v
CruArgsChainableCallable: TypeAlias = Callable[..., Iterable[Any]]
CruKwargsChainableCallable: TypeAlias = Callable[..., Iterable[tuple[str, Any]]]
CruChainableCallable: TypeAlias = Callable[
..., tuple[Iterable[Any], Iterable[tuple[str, Any]]]
]
class CruFunctionChainMode(Flag):
ARGS = auto()
KWARGS = auto()
BOTH = ARGS | KWARGS
class CruFunctionMeta:
@staticmethod
def bind(func: Callable[..., _T], *bind_args, **bind_kwargs) -> Callable[..., _T]:
def bound_func(*args, **kwargs):
popped = 0
real_args = []
for arg in bind_args:
if CruPlaceholder.check(arg):
real_args.append(args[popped])
popped += 1
else:
real_args.append(arg)
real_args.extend(args[popped:])
return func(*real_args, **(bind_kwargs | kwargs))
return bound_func
@staticmethod
def chain_with_args(
funcs: Iterable[CruArgsChainableCallable], *bind_args, **bind_kwargs
) -> CruArgsChainableCallable:
def chained_func(*args):
for func in funcs:
args = CruFunctionMeta.bind(func, *bind_args, **bind_kwargs)(*args)
return args
return chained_func
@staticmethod
def chain_with_kwargs(
funcs: Iterable[CruKwargsChainableCallable], *bind_args, **bind_kwargs
) -> CruKwargsChainableCallable:
def chained_func(**kwargs):
for func in funcs:
kwargs = CruFunctionMeta.bind(func, *bind_args, **bind_kwargs)(**kwargs)
return kwargs
return chained_func
@staticmethod
def chain_with_both(
funcs: Iterable[CruChainableCallable], *bind_args, **bind_kwargs
) -> CruChainableCallable:
def chained_func(*args, **kwargs):
for func in funcs:
args, kwargs = CruFunctionMeta.bind(func, *bind_args, **bind_kwargs)(
*args, **kwargs
)
return args, kwargs
return chained_func
@staticmethod
def chain(
mode: CruFunctionChainMode,
funcs: Iterable[
CruArgsChainableCallable | CruKwargsChainableCallable | CruChainableCallable
],
*bind_args,
**bind_kwargs,
) -> CruArgsChainableCallable | CruKwargsChainableCallable | CruChainableCallable:
if mode == CruFunctionChainMode.ARGS:
return CruFunctionMeta.chain_with_args(
cast(Iterable[CruArgsChainableCallable], funcs),
*bind_args,
**bind_kwargs,
)
elif mode == CruFunctionChainMode.KWARGS:
return CruFunctionMeta.chain_with_kwargs(
cast(Iterable[CruKwargsChainableCallable], funcs),
*bind_args,
**bind_kwargs,
)
elif mode == CruFunctionChainMode.BOTH:
return CruFunctionMeta.chain_with_both(
cast(Iterable[CruChainableCallable], funcs), *bind_args, **bind_kwargs
)
# Advanced Function Wrapper
class CruFunction(Generic[_P, _T]):
def __init__(self, f: Callable[_P, _T]):
self._f = f
@property
def f(self) -> Callable[_P, _T]:
return self._f
@property
def func(self) -> Callable[_P, _T]:
return self.f
def bind(self, *bind_args, **bind_kwargs) -> CruFunction[..., _T]:
self._f = CruFunctionMeta.bind(self._f, *bind_args, **bind_kwargs)
return self
def _iter_with_self(
self, funcs: Iterable[Callable[..., Any]]
) -> Iterable[Callable[..., Any]]:
yield self
yield from funcs
@staticmethod
def chain_with_args(
self,
funcs: Iterable[CruArgsChainableCallable],
*bind_args,
**bind_kwargs,
) -> CruArgsChainableCallable:
return CruFunction(
CruFunctionMeta.chain_with_args(
self._iter_with_self(funcs), *bind_args, **bind_kwargs
)
)
def chain_with_kwargs(
self, funcs: Iterable[CruKwargsChainableCallable], *bind_args, **bind_kwargs
) -> CruKwargsChainableCallable:
return CruFunction(
CruFunctionMeta.chain_with_kwargs(
self._iter_with_self(funcs), *bind_args, **bind_kwargs
)
)
def chain_with_both(
self, funcs: Iterable[CruChainableCallable], *bind_args, **bind_kwargs
) -> CruChainableCallable:
return CruFunction(
CruFunctionMeta.chain_with_both(
self._iter_with_self(funcs), *bind_args, **bind_kwargs
)
)
def chain(
self,
mode: CruFunctionChainMode,
funcs: Iterable[
CruArgsChainableCallable | CruKwargsChainableCallable | CruChainableCallable
],
*bind_args,
**bind_kwargs,
) -> CruArgsChainableCallable | CruKwargsChainableCallable | CruChainableCallable:
return CruFunction(
CruFunctionMeta.chain(
mode, self._iter_with_self(funcs), *bind_args, **bind_kwargs
)
)
def __call__(self, *args: _P.args, **kwargs: _P.kwargs) -> _T:
return self._f(*args, **kwargs)
@staticmethod
def make_chain(
mode: CruFunctionChainMode,
funcs: Iterable[
CruArgsChainableCallable | CruKwargsChainableCallable | CruChainableCallable
],
*bind_args,
**bind_kwargs,
) -> CruFunction:
return CruFunction(
CruFunctionMeta.chain(mode, funcs, *bind_args, **bind_kwargs)
)
class CruWrappedFunctions:
none = CruFunction(CruRawFunctions.none)
true = CruFunction(CruRawFunctions.true)
false = CruFunction(CruRawFunctions.false)
identity = CruFunction(CruRawFunctions.identity)
only_you = CruFunction(CruRawFunctions.only_you)
equal = CruFunction(CruRawFunctions.equal)
not_equal = CruFunction(CruRawFunctions.not_equal)
not_ = CruFunction(CruRawFunctions.not_)
class CruFunctionGenerators:
@staticmethod
def make_isinstance_of_types(*types: type) -> Callable:
return CruFunction(lambda v: type(v) in types)
CRU.add_objects(
CruRawFunctions,
CruFunctionMeta,
CruFunction,
CruWrappedFunctions,
CruFunctionGenerators,
)
|
