File size: 5,770 Bytes
d8a7ddd | 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 | # Cases sampled from Lib/test/test_patma.py
# case test_patma_098
match x:
case -0j:
y = 0
# case test_patma_142
match x:
case bytes(z):
y = 0
# case test_patma_073
match x:
case 0 if 0:
y = 0
case 0 if 1:
y = 1
# case test_patma_006
match 3:
case 0 | 1 | 2 | 3:
x = True
# case test_patma_049
match x:
case [0, 1] | [1, 0]:
y = 0
# case black_check_sequence_then_mapping
match x:
case [*_]:
return "seq"
case {}:
return "map"
# case test_patma_035
match x:
case {0: [1, 2, {}]}:
y = 0
case {0: [1, 2, {}] | True} | {1: [[]]} | {0: [1, 2, {}]} | [] | "X" | {}:
y = 1
case []:
y = 2
# case test_patma_107
match x:
case 0.25 + 1.75j:
y = 0
# case test_patma_097
match x:
case -0j:
y = 0
# case test_patma_007
match 4:
case 0 | 1 | 2 | 3:
x = True
# case test_patma_154
match x:
case 0 if x:
y = 0
# case test_patma_134
match x:
case {1: 0}:
y = 0
case {0: 0}:
y = 1
case {**z}:
y = 2
# case test_patma_185
match Seq():
case [*_]:
y = 0
# case test_patma_063
match x:
case 1:
y = 0
case 1:
y = 1
# case test_patma_248
match x:
case {"foo": bar}:
y = bar
# case test_patma_019
match (0, 1, 2):
case [0, 1, *x, 2]:
y = 0
# case test_patma_052
match x:
case [0]:
y = 0
case [1, 0] if (x := x[:0]):
y = 1
case [1, 0]:
y = 2
# case test_patma_191
match w:
case [x, y, *_]:
z = 0
# case test_patma_110
match x:
case -0.25 - 1.75j:
y = 0
# case test_patma_151
match (x,):
case [y]:
z = 0
# case test_patma_114
match x:
case A.B.C.D:
y = 0
# case test_patma_232
match x:
case None:
y = 0
# case test_patma_058
match x:
case 0:
y = 0
# case test_patma_233
match x:
case False:
y = 0
# case test_patma_078
match x:
case []:
y = 0
case [""]:
y = 1
case "":
y = 2
# case test_patma_156
match x:
case z:
y = 0
# case test_patma_189
match w:
case [x, y, *rest]:
z = 0
# case test_patma_042
match x:
case (0 as z) | (1 as z) | (2 as z) if z == x % 2:
y = 0
# case test_patma_034
match x:
case {0: [1, 2, {}]}:
y = 0
case {0: [1, 2, {}] | False} | {1: [[]]} | {0: [1, 2, {}]} | [] | "X" | {}:
y = 1
case []:
y = 2
# case test_patma_123
match (0, 1, 2):
case 0, *x:
y = 0
# case test_patma_126
match (0, 1, 2):
case *x, 2,:
y = 0
# case test_patma_151
match x,:
case y,:
z = 0
# case test_patma_152
match w, x:
case y, z:
v = 0
# case test_patma_153
match w := x,:
case y as v,:
z = 0
match x:
# F-strings aren't allowed as patterns but it's a soft syntax error in Python.
case f"{y}":
pass
match {"test": 1}:
case {
**rest,
}:
print(rest)
match {"label": "test"}:
case {
"label": str() | None as label,
}:
print(label)
match x:
case [0, 1,]:
y = 0
match x:
case (0, 1,):
y = 0
match x:
case (0,):
y = 0
match x,:
case z:
pass
match x, y:
case z:
pass
match x, y,:
case z:
pass
# PatternMatchSingleton
match x:
case None:
...
case True:
...
case False:
...
# PatternMatchValue
match x:
case a.b:
...
case a.b.c:
...
case '':
...
case b'':
...
case 1:
...
case 1.0:
...
case 1.0J:
...
case 1 + 1j:
...
case -1:
...
case -1.:
...
case -0b01:
...
case (1):
...
# PatternMatchOr
match x:
case 1 | 2:
...
case '' | 1.1 | -1 | 1 + 1j | a.b:
...
# PatternMatchAs
match x:
case a:
...
match x:
case a as b:
...
match x:
case 1 | 2 as two:
...
case 1 + 3j as sum:
...
case a.b as ab:
...
case _ as x:
...
match x:
case _:
...
# PatternMatchSequence
match x:
case 1, 2, 3:
...
case (1, 2, 3,):
...
case (1 + 2j, a, None, a.b):
...
case (1 as X, b) as S:
...
case [1, 2, 3 + 1j]:
...
case ([1,2], 3):
...
case [1]:
...
# PatternMatchStar
match x:
case *a,:
...
case *_,:
...
case [1, 2, *rest]:
...
case (*_, 1, 2):
...
# PatternMatchClass
match x:
case Point():
...
case a.b.Point():
...
case Point2D(x=0):
...
case Point2D(x=0, y=0,):
...
case Point2D(0, 1):
...
case Point2D([0, 1], y=1):
...
case Point2D(x=[0, 1], y=1):
...
# PatternMatchMapping
match x := b:
case {1: _}:
...
case {'': a, None: (1, 2), **rest}:
...
# Pattern guard
match y:
case a if b := c: ...
case e if 1 < 2: ...
# `match` as an identifier
match *a + b, c # ((match * a) + b), c
match *(a + b), c # (match * (a + b)), c
match (*a + b, c) # match ((*(a + b)), c)
match -a * b + c # (match - (a * b)) + c
match -(a * b) + c # (match - (a * b)) + c
match (-a) * b + c # (match (-(a * b))) + c
match ().a # (match()).a
match (()).a # (match(())).a
match ((),).a # (match(())).a
match [a].b # (match[a]).b
match [a,].b # (match[(a,)]).b (not (match[a]).b)
match [(a,)].b # (match[(a,)]).b
match()[a:
b] # (match())[a: b]
if match := 1: pass
match match:
case 1: pass
case 2:
pass
match = lambda query: query == event
print(match(12))
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