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bpo-42128: Add 'missing :' syntax error message to match statements (GH-24733)

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Pablo Galindo 2021-03-18 01:03:11 +00:00 • committed by GitHub
parent 526fdeb227
commit 08fb8ac99a
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 368 additions and 184 deletions
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8
Grammar/python.gram
View file

@ -211,6 +211,7 @@ finally_block[asdl_stmt_seq*]: 'finally' ':' a=block { a }
match_stmt[stmt_ty]: match_stmt[stmt_ty]:
| "match" subject=subject_expr ':' NEWLINE INDENT cases[asdl_match_case_seq*]=case_block+ DEDENT { | "match" subject=subject_expr ':' NEWLINE INDENT cases[asdl_match_case_seq*]=case_block+ DEDENT {
CHECK_VERSION(stmt_ty, 10, "Pattern matching is", _Py_Match(subject, cases, EXTRA)) } CHECK_VERSION(stmt_ty, 10, "Pattern matching is", _Py_Match(subject, cases, EXTRA)) }
| invalid_match_stmt
subject_expr[expr_ty]: subject_expr[expr_ty]:
| value=star_named_expression ',' values=star_named_expressions? { | value=star_named_expression ',' values=star_named_expressions? {
_Py_Tuple(CHECK(asdl_expr_seq*, _PyPegen_seq_insert_in_front(p, value, values)), Load, EXTRA) } _Py_Tuple(CHECK(asdl_expr_seq*, _PyPegen_seq_insert_in_front(p, value, values)), Load, EXTRA) }
@ -218,6 +219,7 @@ subject_expr[expr_ty]:
case_block[match_case_ty]: case_block[match_case_ty]:
| "case" pattern=patterns guard=guard? ':' body=block { | "case" pattern=patterns guard=guard? ':' body=block {
_Py_match_case(pattern, guard, body, p->arena) } _Py_match_case(pattern, guard, body, p->arena) }
| invalid_case_block
guard[expr_ty]: 'if' guard=named_expression { guard } guard[expr_ty]: 'if' guard=named_expression { guard }
patterns[expr_ty]: patterns[expr_ty]:
@ -853,3 +855,9 @@ invalid_except_block:
RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "exception group must be parenthesized") } RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "exception group must be parenthesized") }
| 'except' expression ['as' NAME ] &&':' | 'except' expression ['as' NAME ] &&':'
| 'except' &&':' | 'except' &&':'
invalid_match_stmt:
| "match" subject_expr !':' { CHECK_VERSION(void*, 10, "Pattern matching is", RAISE_SYNTAX_ERROR("expected ':'") ) }
invalid_case_block:
| "case" patterns guard? !':' { RAISE_SYNTAX_ERROR("expected ':'") }

36
Lib/test/test_syntax.py
View file

@ -825,6 +825,24 @@
Traceback (most recent call last): Traceback (most recent call last):
SyntaxError: expected ':' SyntaxError: expected ':'
>>> match x
... case list():
... pass
Traceback (most recent call last):
SyntaxError: expected ':'
>>> match x:
... case list()
... pass
Traceback (most recent call last):
SyntaxError: expected ':'
>>> match x:
... case [y] if y > 0
... pass
Traceback (most recent call last):
SyntaxError: expected ':'
Make sure that the old "raise X, Y[, Z]" form is gone: Make sure that the old "raise X, Y[, Z]" form is gone:
>>> raise X, Y >>> raise X, Y
Traceback (most recent call last): Traceback (most recent call last):
@ -1159,6 +1177,24 @@ def test_error_parenthesis(self):
for paren in ")]}": for paren in ")]}":
self._check_error(paren + "1 + 2", f"unmatched '\\{paren}'") self._check_error(paren + "1 + 2", f"unmatched '\\{paren}'")
def test_match_call_does_not_raise_syntax_error(self):
code = """
def match(x):
return 1+1
match(34)
"""
compile(code, "<string>", "exec")
def test_case_call_does_not_raise_syntax_error(self):
code = """
def case(x):
return 1+1
case(34)
"""
compile(code, "<string>", "exec")
def test_main(): def test_main():
support.run_unittest(SyntaxTestCase) support.run_unittest(SyntaxTestCase)

508
Parser/parser.c
View file

@ -263,188 +263,190 @@ static KeywordToken *reserved_keywords[] = {
#define invalid_import_from_targets_type 1194 #define invalid_import_from_targets_type 1194
#define invalid_with_stmt_type 1195 #define invalid_with_stmt_type 1195
#define invalid_except_block_type 1196 #define invalid_except_block_type 1196
#define _loop0_1_type 1197 #define invalid_match_stmt_type 1197
#define _loop0_2_type 1198 #define invalid_case_block_type 1198
#define _loop0_4_type 1199 #define _loop0_1_type 1199
#define _gather_3_type 1200 #define _loop0_2_type 1200
#define _loop0_6_type 1201 #define _loop0_4_type 1201
#define _gather_5_type 1202 #define _gather_3_type 1202
#define _loop0_8_type 1203 #define _loop0_6_type 1203
#define _gather_7_type 1204 #define _gather_5_type 1204
#define _loop0_10_type 1205 #define _loop0_8_type 1205
#define _gather_9_type 1206 #define _gather_7_type 1206
#define _loop1_11_type 1207 #define _loop0_10_type 1207
#define _loop0_13_type 1208 #define _gather_9_type 1208
#define _gather_12_type 1209 #define _loop1_11_type 1209
#define _tmp_14_type 1210 #define _loop0_13_type 1210
#define _tmp_15_type 1211 #define _gather_12_type 1211
#define _tmp_16_type 1212 #define _tmp_14_type 1212
#define _tmp_17_type 1213 #define _tmp_15_type 1213
#define _tmp_18_type 1214 #define _tmp_16_type 1214
#define _tmp_19_type 1215 #define _tmp_17_type 1215
#define _tmp_20_type 1216 #define _tmp_18_type 1216
#define _tmp_21_type 1217 #define _tmp_19_type 1217
#define _loop1_22_type 1218 #define _tmp_20_type 1218
#define _tmp_23_type 1219 #define _tmp_21_type 1219
#define _tmp_24_type 1220 #define _loop1_22_type 1220
#define _loop0_26_type 1221 #define _tmp_23_type 1221
#define _gather_25_type 1222 #define _tmp_24_type 1222
#define _loop0_28_type 1223 #define _loop0_26_type 1223
#define _gather_27_type 1224 #define _gather_25_type 1224
#define _tmp_29_type 1225 #define _loop0_28_type 1225
#define _tmp_30_type 1226 #define _gather_27_type 1226
#define _loop0_31_type 1227 #define _tmp_29_type 1227
#define _loop1_32_type 1228 #define _tmp_30_type 1228
#define _loop0_34_type 1229 #define _loop0_31_type 1229
#define _gather_33_type 1230 #define _loop1_32_type 1230
#define _tmp_35_type 1231 #define _loop0_34_type 1231
#define _loop0_37_type 1232 #define _gather_33_type 1232
#define _gather_36_type 1233 #define _tmp_35_type 1233
#define _tmp_38_type 1234 #define _loop0_37_type 1234
#define _loop0_40_type 1235 #define _gather_36_type 1235
#define _gather_39_type 1236 #define _tmp_38_type 1236
#define _loop0_42_type 1237 #define _loop0_40_type 1237
#define _gather_41_type 1238 #define _gather_39_type 1238
#define _loop0_44_type 1239 #define _loop0_42_type 1239
#define _gather_43_type 1240 #define _gather_41_type 1240
#define _loop0_46_type 1241 #define _loop0_44_type 1241
#define _gather_45_type 1242 #define _gather_43_type 1242
#define _tmp_47_type 1243 #define _loop0_46_type 1243
#define _loop1_48_type 1244 #define _gather_45_type 1244
#define _tmp_49_type 1245 #define _tmp_47_type 1245
#define _loop1_50_type 1246 #define _loop1_48_type 1246
#define _loop0_52_type 1247 #define _tmp_49_type 1247
#define _gather_51_type 1248 #define _loop1_50_type 1248
#define _tmp_53_type 1249 #define _loop0_52_type 1249
#define _tmp_54_type 1250 #define _gather_51_type 1250
#define _tmp_55_type 1251 #define _tmp_53_type 1251
#define _loop0_57_type 1252 #define _tmp_54_type 1252
#define _gather_56_type 1253 #define _tmp_55_type 1253
#define _tmp_58_type 1254 #define _loop0_57_type 1254
#define _loop0_60_type 1255 #define _gather_56_type 1255
#define _gather_59_type 1256 #define _tmp_58_type 1256
#define _tmp_61_type 1257 #define _loop0_60_type 1257
#define _loop0_63_type 1258 #define _gather_59_type 1258
#define _gather_62_type 1259 #define _tmp_61_type 1259
#define _loop0_65_type 1260 #define _loop0_63_type 1260
#define _gather_64_type 1261 #define _gather_62_type 1261
#define _tmp_66_type 1262 #define _loop0_65_type 1262
#define _tmp_67_type 1263 #define _gather_64_type 1263
#define _tmp_68_type 1264 #define _tmp_66_type 1264
#define _tmp_69_type 1265 #define _tmp_67_type 1265
#define _loop0_70_type 1266 #define _tmp_68_type 1266
#define _loop0_71_type 1267 #define _tmp_69_type 1267
#define _loop0_72_type 1268 #define _loop0_70_type 1268
#define _loop1_73_type 1269 #define _loop0_71_type 1269
#define _loop0_74_type 1270 #define _loop0_72_type 1270
#define _loop1_75_type 1271 #define _loop1_73_type 1271
#define _loop1_76_type 1272 #define _loop0_74_type 1272
#define _loop1_77_type 1273 #define _loop1_75_type 1273
#define _loop0_78_type 1274 #define _loop1_76_type 1274
#define _loop1_79_type 1275 #define _loop1_77_type 1275
#define _loop0_80_type 1276 #define _loop0_78_type 1276
#define _loop1_81_type 1277 #define _loop1_79_type 1277
#define _loop0_82_type 1278 #define _loop0_80_type 1278
#define _loop1_83_type 1279 #define _loop1_81_type 1279
#define _loop1_84_type 1280 #define _loop0_82_type 1280
#define _tmp_85_type 1281 #define _loop1_83_type 1281
#define _loop1_86_type 1282 #define _loop1_84_type 1282
#define _loop0_88_type 1283 #define _tmp_85_type 1283
#define _gather_87_type 1284 #define _loop1_86_type 1284
#define _loop1_89_type 1285 #define _loop0_88_type 1285
#define _loop0_90_type 1286 #define _gather_87_type 1286
#define _loop0_91_type 1287 #define _loop1_89_type 1287
#define _loop0_92_type 1288 #define _loop0_90_type 1288
#define _loop1_93_type 1289 #define _loop0_91_type 1289
#define _loop0_94_type 1290 #define _loop0_92_type 1290
#define _loop1_95_type 1291 #define _loop1_93_type 1291
#define _loop1_96_type 1292 #define _loop0_94_type 1292
#define _loop1_97_type 1293 #define _loop1_95_type 1293
#define _loop0_98_type 1294 #define _loop1_96_type 1294
#define _loop1_99_type 1295 #define _loop1_97_type 1295
#define _loop0_100_type 1296 #define _loop0_98_type 1296
#define _loop1_101_type 1297 #define _loop1_99_type 1297
#define _loop0_102_type 1298 #define _loop0_100_type 1298
#define _loop1_103_type 1299 #define _loop1_101_type 1299
#define _loop1_104_type 1300 #define _loop0_102_type 1300
#define _loop1_105_type 1301 #define _loop1_103_type 1301
#define _loop1_106_type 1302 #define _loop1_104_type 1302
#define _tmp_107_type 1303 #define _loop1_105_type 1303
#define _loop0_109_type 1304 #define _loop1_106_type 1304
#define _gather_108_type 1305 #define _tmp_107_type 1305
#define _tmp_110_type 1306 #define _loop0_109_type 1306
#define _tmp_111_type 1307 #define _gather_108_type 1307
#define _tmp_112_type 1308 #define _tmp_110_type 1308
#define _tmp_113_type 1309 #define _tmp_111_type 1309
#define _loop1_114_type 1310 #define _tmp_112_type 1310
#define _tmp_115_type 1311 #define _tmp_113_type 1311
#define _tmp_116_type 1312 #define _loop1_114_type 1312
#define _loop0_118_type 1313 #define _tmp_115_type 1313
#define _gather_117_type 1314 #define _tmp_116_type 1314
#define _loop1_119_type 1315 #define _loop0_118_type 1315
#define _loop0_120_type 1316 #define _gather_117_type 1316
#define _loop0_121_type 1317 #define _loop1_119_type 1317
#define _loop0_123_type 1318 #define _loop0_120_type 1318
#define _gather_122_type 1319 #define _loop0_121_type 1319
#define _tmp_124_type 1320 #define _loop0_123_type 1320
#define _loop0_126_type 1321 #define _gather_122_type 1321
#define _gather_125_type 1322 #define _tmp_124_type 1322
#define _loop0_128_type 1323 #define _loop0_126_type 1323
#define _gather_127_type 1324 #define _gather_125_type 1324
#define _loop0_130_type 1325 #define _loop0_128_type 1325
#define _gather_129_type 1326 #define _gather_127_type 1326
#define _loop0_132_type 1327 #define _loop0_130_type 1327
#define _gather_131_type 1328 #define _gather_129_type 1328
#define _loop0_133_type 1329 #define _loop0_132_type 1329
#define _loop0_135_type 1330 #define _gather_131_type 1330
#define _gather_134_type 1331 #define _loop0_133_type 1331
#define _loop1_136_type 1332 #define _loop0_135_type 1332
#define _tmp_137_type 1333 #define _gather_134_type 1333
#define _loop0_139_type 1334 #define _loop1_136_type 1334
#define _gather_138_type 1335 #define _tmp_137_type 1335
#define _loop0_141_type 1336 #define _loop0_139_type 1336
#define _gather_140_type 1337 #define _gather_138_type 1337
#define _tmp_142_type 1338 #define _loop0_141_type 1338
#define _loop0_143_type 1339 #define _gather_140_type 1339
#define _loop0_144_type 1340 #define _tmp_142_type 1340
#define _loop0_145_type 1341 #define _loop0_143_type 1341
#define _tmp_146_type 1342 #define _loop0_144_type 1342
#define _tmp_147_type 1343 #define _loop0_145_type 1343
#define _tmp_148_type 1344 #define _tmp_146_type 1344
#define _loop0_149_type 1345 #define _tmp_147_type 1345
#define _loop1_150_type 1346 #define _tmp_148_type 1346
#define _loop0_151_type 1347 #define _loop0_149_type 1347
#define _loop1_152_type 1348 #define _loop1_150_type 1348
#define _tmp_153_type 1349 #define _loop0_151_type 1349
#define _tmp_154_type 1350 #define _loop1_152_type 1350
#define _tmp_155_type 1351 #define _tmp_153_type 1351
#define _loop0_157_type 1352 #define _tmp_154_type 1352
#define _gather_156_type 1353 #define _tmp_155_type 1353
#define _loop0_159_type 1354 #define _loop0_157_type 1354
#define _gather_158_type 1355 #define _gather_156_type 1355
#define _tmp_160_type 1356 #define _loop0_159_type 1356
#define _tmp_161_type 1357 #define _gather_158_type 1357
#define _tmp_162_type 1358 #define _tmp_160_type 1358
#define _tmp_163_type 1359 #define _tmp_161_type 1359
#define _tmp_164_type 1360 #define _tmp_162_type 1360
#define _tmp_165_type 1361 #define _tmp_163_type 1361
#define _tmp_166_type 1362 #define _tmp_164_type 1362
#define _tmp_167_type 1363 #define _tmp_165_type 1363
#define _tmp_168_type 1364 #define _tmp_166_type 1364
#define _tmp_169_type 1365 #define _tmp_167_type 1365
#define _tmp_170_type 1366 #define _tmp_168_type 1366
#define _tmp_171_type 1367 #define _tmp_169_type 1367
#define _tmp_172_type 1368 #define _tmp_170_type 1368
#define _tmp_173_type 1369 #define _tmp_171_type 1369
#define _tmp_174_type 1370 #define _tmp_172_type 1370
#define _tmp_175_type 1371 #define _tmp_173_type 1371
#define _tmp_176_type 1372 #define _tmp_174_type 1372
#define _tmp_177_type 1373 #define _tmp_175_type 1373
#define _tmp_178_type 1374 #define _tmp_176_type 1374
#define _tmp_179_type 1375 #define _tmp_177_type 1375
#define _tmp_180_type 1376 #define _tmp_178_type 1376
#define _tmp_181_type 1377 #define _tmp_179_type 1377
#define _tmp_182_type 1378 #define _tmp_180_type 1378
#define _tmp_181_type 1379
#define _tmp_182_type 1380
static mod_ty file_rule(Parser *p); static mod_ty file_rule(Parser *p);
static mod_ty interactive_rule(Parser *p); static mod_ty interactive_rule(Parser *p);
@ -643,6 +645,8 @@ static void *invalid_group_rule(Parser *p);
static void *invalid_import_from_targets_rule(Parser *p); static void *invalid_import_from_targets_rule(Parser *p);
static void *invalid_with_stmt_rule(Parser *p); static void *invalid_with_stmt_rule(Parser *p);
static void *invalid_except_block_rule(Parser *p); static void *invalid_except_block_rule(Parser *p);
static void *invalid_match_stmt_rule(Parser *p);
static void *invalid_case_block_rule(Parser *p);
static asdl_seq *_loop0_1_rule(Parser *p); static asdl_seq *_loop0_1_rule(Parser *p);
static asdl_seq *_loop0_2_rule(Parser *p); static asdl_seq *_loop0_2_rule(Parser *p);
static asdl_seq *_loop0_4_rule(Parser *p); static asdl_seq *_loop0_4_rule(Parser *p);
@ -4848,7 +4852,9 @@ finally_block_rule(Parser *p)
return _res; return _res;
} }
// match_stmt: "match" subject_expr ':' NEWLINE INDENT case_block+ DEDENT // match_stmt:
// | "match" subject_expr ':' NEWLINE INDENT case_block+ DEDENT
// | invalid_match_stmt
static stmt_ty static stmt_ty
match_stmt_rule(Parser *p) match_stmt_rule(Parser *p)
{ {
@ -4919,6 +4925,25 @@ match_stmt_rule(Parser *p)
D(fprintf(stderr, "%*c%s match_stmt[%d-%d]: %s failed!\n", p->level, ' ', D(fprintf(stderr, "%*c%s match_stmt[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"match\" subject_expr ':' NEWLINE INDENT case_block+ DEDENT")); p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"match\" subject_expr ':' NEWLINE INDENT case_block+ DEDENT"));
} }
if (p->call_invalid_rules) { // invalid_match_stmt
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> match_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "invalid_match_stmt"));
void *invalid_match_stmt_var;
if (
(invalid_match_stmt_var = invalid_match_stmt_rule(p)) // invalid_match_stmt
)
{
D(fprintf(stderr, "%*c+ match_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "invalid_match_stmt"));
_res = invalid_match_stmt_var;
goto done;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s match_stmt[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "invalid_match_stmt"));
}
_res = NULL; _res = NULL;
done: done:
D(p->level--); D(p->level--);
@ -5009,7 +5034,7 @@ subject_expr_rule(Parser *p)
return _res; return _res;
} }
// case_block: "case" patterns guard? ':' block // case_block: "case" patterns guard? ':' block | invalid_case_block
static match_case_ty static match_case_ty
case_block_rule(Parser *p) case_block_rule(Parser *p)
{ {
@ -5056,6 +5081,25 @@ case_block_rule(Parser *p)
D(fprintf(stderr, "%*c%s case_block[%d-%d]: %s failed!\n", p->level, ' ', D(fprintf(stderr, "%*c%s case_block[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"case\" patterns guard? ':' block")); p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"case\" patterns guard? ':' block"));
} }
if (p->call_invalid_rules) { // invalid_case_block
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> case_block[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "invalid_case_block"));
void *invalid_case_block_var;
if (
(invalid_case_block_var = invalid_case_block_rule(p)) // invalid_case_block
)
{
D(fprintf(stderr, "%*c+ case_block[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "invalid_case_block"));
_res = invalid_case_block_var;
goto done;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s case_block[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "invalid_case_block"));
}
_res = NULL; _res = NULL;
done: done:
D(p->level--); D(p->level--);
@ -18531,6 +18575,102 @@ invalid_except_block_rule(Parser *p)
return _res; return _res;
} }
// invalid_match_stmt: "match" subject_expr !':'
static void *
invalid_match_stmt_rule(Parser *p)
{
D(p->level++);
if (p->error_indicator) {
D(p->level--);
return NULL;
}
void * _res = NULL;
int _mark = p->mark;
{ // "match" subject_expr !':'
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> invalid_match_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "\"match\" subject_expr !':'"));
expr_ty _keyword;
expr_ty subject_expr_var;
if (
(_keyword = _PyPegen_expect_soft_keyword(p, "match")) // soft_keyword='"match"'
&&
(subject_expr_var = subject_expr_rule(p)) // subject_expr
&&
_PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 11) // token=':'
)
{
D(fprintf(stderr, "%*c+ invalid_match_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "\"match\" subject_expr !':'"));
_res = CHECK_VERSION ( void * , 10 , "Pattern matching is" , RAISE_SYNTAX_ERROR ( "expected ':'" ) );
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
D(p->level--);
return NULL;
}
goto done;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s invalid_match_stmt[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"match\" subject_expr !':'"));
}
_res = NULL;
done:
D(p->level--);
return _res;
}
// invalid_case_block: "case" patterns guard? !':'
static void *
invalid_case_block_rule(Parser *p)
{
D(p->level++);
if (p->error_indicator) {
D(p->level--);
return NULL;
}
void * _res = NULL;
int _mark = p->mark;
{ // "case" patterns guard? !':'
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> invalid_case_block[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "\"case\" patterns guard? !':'"));
expr_ty _keyword;
void *_opt_var;
UNUSED(_opt_var); // Silence compiler warnings
expr_ty patterns_var;
if (
(_keyword = _PyPegen_expect_soft_keyword(p, "case")) // soft_keyword='"case"'
&&
(patterns_var = patterns_rule(p)) // patterns
&&
(_opt_var = guard_rule(p), 1) // guard?
&&
_PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 11) // token=':'
)
{
D(fprintf(stderr, "%*c+ invalid_case_block[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "\"case\" patterns guard? !':'"));
_res = RAISE_SYNTAX_ERROR ( "expected ':'" );
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
D(p->level--);
return NULL;
}
goto done;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s invalid_case_block[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "\"case\" patterns guard? !':'"));
}
_res = NULL;
done:
D(p->level--);
return _res;
}
// _loop0_1: NEWLINE // _loop0_1: NEWLINE
static asdl_seq * static asdl_seq *
_loop0_1_rule(Parser *p) _loop0_1_rule(Parser *p)