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bpo-43892: Validate the first term of complex literal value patterns (GH-25735)

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Brandt Bucher 2021-04-29 17:19:28 -07:00 committed by GitHub
parent 87655e2cf5
commit dbe60ee09d
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 595 additions and 441 deletions
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21
Grammar/python.gram
View File

@ -276,13 +276,22 @@ literal_expr[expr_ty]:
| 'False' { _PyAST_Constant(Py_False, NULL, EXTRA) }
complex_number[expr_ty]:
| real=signed_number '+' imag=imaginary_number { _PyAST_BinOp(real, Add, imag, EXTRA) }
| real=signed_number '-' imag=imaginary_number { _PyAST_BinOp(real, Sub, imag, EXTRA) }
| real=signed_real_number '+' imag=imaginary_number {
_PyAST_BinOp(real, Add, imag, EXTRA) }
| real=signed_real_number '-' imag=imaginary_number {
_PyAST_BinOp(real, Sub, imag, EXTRA) }
signed_number[expr_ty]:
| NUMBER
| '-' number=NUMBER { _PyAST_UnaryOp(USub, number, EXTRA) }
signed_real_number[expr_ty]:
| real_number
| '-' real=real_number { _PyAST_UnaryOp(USub, real, EXTRA) }
real_number[expr_ty]:
| real=NUMBER { _PyPegen_ensure_real(p, real) }
imaginary_number[expr_ty]:
| imag=NUMBER { _PyPegen_ensure_imaginary(p, imag) }
@ -343,7 +352,7 @@ mapping_pattern[pattern_ty]:
NULL,
EXTRA) }
items_pattern[asdl_seq*]:
| items=','.key_value_pattern+ { items }
| ','.key_value_pattern+
key_value_pattern[KeyPatternPair*]:
| key=(literal_expr | attr) ':' pattern=pattern {
_PyPegen_key_pattern_pair(p, key, pattern) }
@ -373,7 +382,7 @@ class_pattern[pattern_ty]:
positional_patterns[asdl_pattern_seq*]:
| args[asdl_pattern_seq*]=','.pattern+ { args }
keyword_patterns[asdl_seq*]:
| keywords[asdl_seq*]=','.keyword_pattern+ { keywords }
| ','.keyword_pattern+
keyword_pattern[KeyPatternPair*]:
| arg=NAME '=' value=pattern { _PyPegen_key_pattern_pair(p, arg, value) }
@ -954,12 +963,12 @@ invalid_finally_stmt:
| a='finally' ':' NEWLINE !INDENT {
RAISE_INDENTATION_ERROR("expected an indented block after 'finally' statement on line %d", a->lineno) }
invalid_except_stmt_indent:
| a='except' expression ['as' NAME ] ':' NEWLINE !INDENT {
| a='except' expression ['as' NAME ] ':' NEWLINE !INDENT {
RAISE_INDENTATION_ERROR("expected an indented block after 'except' statement on line %d", a->lineno) }
| a='except' ':' NEWLINE !INDENT { RAISE_SYNTAX_ERROR("expected an indented block after except statement on line %d", a->lineno) }
invalid_match_stmt:
| "match" subject_expr !':' { CHECK_VERSION(void*, 10, "Pattern matching is", RAISE_SYNTAX_ERROR("expected ':'") ) }
| a="match" subject=subject_expr ':' NEWLINE !INDENT {
| a="match" subject=subject_expr ':' NEWLINE !INDENT {
RAISE_INDENTATION_ERROR("expected an indented block after 'match' statement on line %d", a->lineno) }
invalid_case_block:
| "case" patterns guard? !':' { RAISE_SYNTAX_ERROR("expected ':'") }

32
Lib/test/test_patma.py
View File

@ -2873,6 +2873,38 @@ class TestPatma(unittest.TestCase):
pass
""")
@no_perf
def test_patma_285(self):
self.assert_syntax_error("""
match ...:
case 0j+0:
pass
""")
@no_perf
def test_patma_286(self):
self.assert_syntax_error("""
match ...:
case 0j+0j:
pass
""")
@no_perf
def test_patma_287(self):
self.assert_syntax_error("""
match ...:
case {0j+0: _}:
pass
""")
@no_perf
def test_patma_288(self):
self.assert_syntax_error("""
match ...:
case {0j+0j: _}:
pass
""")
class PerfPatma(TestPatma):

2
Misc/NEWS.d/next/Core and Builtins/2021-04-29-16-00-28.bpo-43892.WXIehI.rst Normal file
View File

@ -0,0 +1,2 @@
Restore proper validation of complex literal value patterns when parsing
:keyword:`!match` blocks.

908
Parser/parser.c
View File

@ -122,374 +122,376 @@ static char *soft_keywords[] = {
#define literal_expr_type 1048
#define complex_number_type 1049
#define signed_number_type 1050
#define imaginary_number_type 1051
#define capture_pattern_type 1052
#define pattern_capture_target_type 1053
#define wildcard_pattern_type 1054
#define value_pattern_type 1055
#define attr_type 1056 // Left-recursive
#define name_or_attr_type 1057 // Left-recursive
#define group_pattern_type 1058
#define sequence_pattern_type 1059
#define open_sequence_pattern_type 1060
#define maybe_sequence_pattern_type 1061
#define maybe_star_pattern_type 1062
#define star_pattern_type 1063
#define mapping_pattern_type 1064
#define items_pattern_type 1065
#define key_value_pattern_type 1066
#define double_star_pattern_type 1067
#define class_pattern_type 1068
#define positional_patterns_type 1069
#define keyword_patterns_type 1070
#define keyword_pattern_type 1071
#define return_stmt_type 1072
#define raise_stmt_type 1073
#define function_def_type 1074
#define function_def_raw_type 1075
#define func_type_comment_type 1076
#define params_type 1077
#define parameters_type 1078
#define slash_no_default_type 1079
#define slash_with_default_type 1080
#define star_etc_type 1081
#define kwds_type 1082
#define param_no_default_type 1083
#define param_with_default_type 1084
#define param_maybe_default_type 1085
#define param_type 1086
#define annotation_type 1087
#define default_type 1088
#define decorators_type 1089
#define class_def_type 1090
#define class_def_raw_type 1091
#define block_type 1092
#define star_expressions_type 1093
#define star_expression_type 1094
#define star_named_expressions_type 1095
#define star_named_expression_type 1096
#define named_expression_type 1097
#define direct_named_expression_type 1098
#define annotated_rhs_type 1099
#define expressions_type 1100
#define expression_type 1101
#define lambdef_type 1102
#define lambda_params_type 1103
#define lambda_parameters_type 1104
#define lambda_slash_no_default_type 1105
#define lambda_slash_with_default_type 1106
#define lambda_star_etc_type 1107
#define lambda_kwds_type 1108
#define lambda_param_no_default_type 1109
#define lambda_param_with_default_type 1110
#define lambda_param_maybe_default_type 1111
#define lambda_param_type 1112
#define disjunction_type 1113
#define conjunction_type 1114
#define inversion_type 1115
#define comparison_type 1116
#define compare_op_bitwise_or_pair_type 1117
#define eq_bitwise_or_type 1118
#define noteq_bitwise_or_type 1119
#define lte_bitwise_or_type 1120
#define lt_bitwise_or_type 1121
#define gte_bitwise_or_type 1122
#define gt_bitwise_or_type 1123
#define notin_bitwise_or_type 1124
#define in_bitwise_or_type 1125
#define isnot_bitwise_or_type 1126
#define is_bitwise_or_type 1127
#define bitwise_or_type 1128 // Left-recursive
#define bitwise_xor_type 1129 // Left-recursive
#define bitwise_and_type 1130 // Left-recursive
#define shift_expr_type 1131 // Left-recursive
#define sum_type 1132 // Left-recursive
#define term_type 1133 // Left-recursive
#define factor_type 1134
#define power_type 1135
#define await_primary_type 1136
#define primary_type 1137 // Left-recursive
#define slices_type 1138
#define slice_type 1139
#define atom_type 1140
#define strings_type 1141
#define list_type 1142
#define listcomp_type 1143
#define tuple_type 1144
#define group_type 1145
#define genexp_type 1146
#define set_type 1147
#define setcomp_type 1148
#define dict_type 1149
#define dictcomp_type 1150
#define double_starred_kvpairs_type 1151
#define double_starred_kvpair_type 1152
#define kvpair_type 1153
#define for_if_clauses_type 1154
#define for_if_clause_type 1155
#define yield_expr_type 1156
#define arguments_type 1157
#define args_type 1158
#define kwargs_type 1159
#define starred_expression_type 1160
#define kwarg_or_starred_type 1161
#define kwarg_or_double_starred_type 1162
#define star_targets_type 1163
#define star_targets_list_seq_type 1164
#define star_targets_tuple_seq_type 1165
#define star_target_type 1166
#define target_with_star_atom_type 1167
#define star_atom_type 1168
#define single_target_type 1169
#define single_subscript_attribute_target_type 1170
#define del_targets_type 1171
#define del_target_type 1172
#define del_t_atom_type 1173
#define targets_type 1174
#define target_type 1175
#define t_primary_type 1176 // Left-recursive
#define t_lookahead_type 1177
#define t_atom_type 1178
#define invalid_arguments_type 1179
#define invalid_kwarg_type 1180
#define invalid_expression_type 1181
#define invalid_named_expression_type 1182
#define invalid_assignment_type 1183
#define invalid_ann_assign_target_type 1184
#define invalid_del_stmt_type 1185
#define invalid_block_type 1186
#define invalid_primary_type 1187 // Left-recursive
#define invalid_comprehension_type 1188
#define invalid_dict_comprehension_type 1189
#define invalid_parameters_type 1190
#define invalid_parameters_helper_type 1191
#define invalid_lambda_parameters_type 1192
#define invalid_lambda_parameters_helper_type 1193
#define invalid_star_etc_type 1194
#define invalid_lambda_star_etc_type 1195
#define invalid_double_type_comments_type 1196
#define invalid_with_item_type 1197
#define invalid_for_target_type 1198
#define invalid_group_type 1199
#define invalid_import_from_targets_type 1200
#define invalid_with_stmt_type 1201
#define invalid_with_stmt_indent_type 1202
#define invalid_try_stmt_type 1203
#define invalid_except_stmt_type 1204
#define invalid_finally_stmt_type 1205
#define invalid_except_stmt_indent_type 1206
#define invalid_match_stmt_type 1207
#define invalid_case_block_type 1208
#define invalid_if_stmt_type 1209
#define invalid_elif_stmt_type 1210
#define invalid_else_stmt_type 1211
#define invalid_while_stmt_type 1212
#define invalid_for_stmt_type 1213
#define invalid_def_raw_type 1214
#define invalid_class_def_raw_type 1215
#define invalid_double_starred_kvpairs_type 1216
#define invalid_kvpair_type 1217
#define _loop0_1_type 1218
#define _loop0_2_type 1219
#define _loop0_4_type 1220
#define _gather_3_type 1221
#define _loop0_6_type 1222
#define _gather_5_type 1223
#define _loop0_8_type 1224
#define _gather_7_type 1225
#define _loop0_10_type 1226
#define _gather_9_type 1227
#define _loop1_11_type 1228
#define _loop0_13_type 1229
#define _gather_12_type 1230
#define _tmp_14_type 1231
#define _tmp_15_type 1232
#define _tmp_16_type 1233
#define _tmp_17_type 1234
#define _tmp_18_type 1235
#define _tmp_19_type 1236
#define _tmp_20_type 1237
#define _tmp_21_type 1238
#define _loop1_22_type 1239
#define _tmp_23_type 1240
#define _tmp_24_type 1241
#define _loop0_26_type 1242
#define _gather_25_type 1243
#define _loop0_28_type 1244
#define _gather_27_type 1245
#define _tmp_29_type 1246
#define _tmp_30_type 1247
#define _loop0_31_type 1248
#define _loop1_32_type 1249
#define _loop0_34_type 1250
#define _gather_33_type 1251
#define _tmp_35_type 1252
#define _loop0_37_type 1253
#define _gather_36_type 1254
#define _tmp_38_type 1255
#define _loop0_40_type 1256
#define _gather_39_type 1257
#define _loop0_42_type 1258
#define _gather_41_type 1259
#define _loop0_44_type 1260
#define _gather_43_type 1261
#define _loop0_46_type 1262
#define _gather_45_type 1263
#define _tmp_47_type 1264
#define _loop1_48_type 1265
#define _tmp_49_type 1266
#define _loop1_50_type 1267
#define _loop0_52_type 1268
#define _gather_51_type 1269
#define _tmp_53_type 1270
#define _tmp_54_type 1271
#define _tmp_55_type 1272
#define _tmp_56_type 1273
#define _loop0_58_type 1274
#define _gather_57_type 1275
#define _loop0_60_type 1276
#define _gather_59_type 1277
#define _tmp_61_type 1278
#define _loop0_63_type 1279
#define _gather_62_type 1280
#define _loop0_65_type 1281
#define _gather_64_type 1282
#define _tmp_66_type 1283
#define _tmp_67_type 1284
#define _tmp_68_type 1285
#define _tmp_69_type 1286
#define _loop0_70_type 1287
#define _loop0_71_type 1288
#define _loop0_72_type 1289
#define _loop1_73_type 1290
#define _loop0_74_type 1291
#define _loop1_75_type 1292
#define _loop1_76_type 1293
#define _loop1_77_type 1294
#define _loop0_78_type 1295
#define _loop1_79_type 1296
#define _loop0_80_type 1297
#define _loop1_81_type 1298
#define _loop0_82_type 1299
#define _loop1_83_type 1300
#define _loop1_84_type 1301
#define _tmp_85_type 1302
#define _loop1_86_type 1303
#define _loop0_88_type 1304
#define _gather_87_type 1305
#define _loop1_89_type 1306
#define _loop0_90_type 1307
#define _loop0_91_type 1308
#define _loop0_92_type 1309
#define _loop1_93_type 1310
#define _loop0_94_type 1311
#define _loop1_95_type 1312
#define _loop1_96_type 1313
#define _loop1_97_type 1314
#define _loop0_98_type 1315
#define _loop1_99_type 1316
#define _loop0_100_type 1317
#define _loop1_101_type 1318
#define _loop0_102_type 1319
#define _loop1_103_type 1320
#define _loop1_104_type 1321
#define _loop1_105_type 1322
#define _loop1_106_type 1323
#define _tmp_107_type 1324
#define _loop0_109_type 1325
#define _gather_108_type 1326
#define _tmp_110_type 1327
#define _tmp_111_type 1328
#define _tmp_112_type 1329
#define _tmp_113_type 1330
#define _loop1_114_type 1331
#define _tmp_115_type 1332
#define _tmp_116_type 1333
#define _loop0_118_type 1334
#define _gather_117_type 1335
#define _loop1_119_type 1336
#define _loop0_120_type 1337
#define _loop0_121_type 1338
#define _loop0_123_type 1339
#define _gather_122_type 1340
#define _tmp_124_type 1341
#define _loop0_126_type 1342
#define _gather_125_type 1343
#define _loop0_128_type 1344
#define _gather_127_type 1345
#define _loop0_130_type 1346
#define _gather_129_type 1347
#define _loop0_132_type 1348
#define _gather_131_type 1349
#define _loop0_133_type 1350
#define _loop0_135_type 1351
#define _gather_134_type 1352
#define _loop1_136_type 1353
#define _tmp_137_type 1354
#define _loop0_139_type 1355
#define _gather_138_type 1356
#define _loop0_141_type 1357
#define _gather_140_type 1358
#define _tmp_142_type 1359
#define _tmp_143_type 1360
#define _tmp_144_type 1361
#define _tmp_145_type 1362
#define _tmp_146_type 1363
#define _loop0_147_type 1364
#define _loop0_148_type 1365
#define _loop0_149_type 1366
#define _tmp_150_type 1367
#define _tmp_151_type 1368
#define _tmp_152_type 1369
#define _tmp_153_type 1370
#define _loop0_154_type 1371
#define _loop1_155_type 1372
#define _loop0_156_type 1373
#define _loop1_157_type 1374
#define _tmp_158_type 1375
#define _tmp_159_type 1376
#define _tmp_160_type 1377
#define _loop0_162_type 1378
#define _gather_161_type 1379
#define _loop0_164_type 1380
#define _gather_163_type 1381
#define _loop0_166_type 1382
#define _gather_165_type 1383
#define _loop0_168_type 1384
#define _gather_167_type 1385
#define _tmp_169_type 1386
#define _tmp_170_type 1387
#define _tmp_171_type 1388
#define _tmp_172_type 1389
#define _tmp_173_type 1390
#define _loop0_175_type 1391
#define _gather_174_type 1392
#define _tmp_176_type 1393
#define _tmp_177_type 1394
#define _tmp_178_type 1395
#define _tmp_179_type 1396
#define _tmp_180_type 1397
#define _tmp_181_type 1398
#define _tmp_182_type 1399
#define _tmp_183_type 1400
#define _tmp_184_type 1401
#define _tmp_185_type 1402
#define _tmp_186_type 1403
#define _tmp_187_type 1404
#define _tmp_188_type 1405
#define _tmp_189_type 1406
#define _tmp_190_type 1407
#define _tmp_191_type 1408
#define _tmp_192_type 1409
#define _tmp_193_type 1410
#define _tmp_194_type 1411
#define _tmp_195_type 1412
#define _tmp_196_type 1413
#define _tmp_197_type 1414
#define _tmp_198_type 1415
#define _tmp_199_type 1416
#define _tmp_200_type 1417
#define _tmp_201_type 1418
#define signed_real_number_type 1051
#define real_number_type 1052
#define imaginary_number_type 1053
#define capture_pattern_type 1054
#define pattern_capture_target_type 1055
#define wildcard_pattern_type 1056
#define value_pattern_type 1057
#define attr_type 1058 // Left-recursive
#define name_or_attr_type 1059 // Left-recursive
#define group_pattern_type 1060
#define sequence_pattern_type 1061
#define open_sequence_pattern_type 1062
#define maybe_sequence_pattern_type 1063
#define maybe_star_pattern_type 1064
#define star_pattern_type 1065
#define mapping_pattern_type 1066
#define items_pattern_type 1067
#define key_value_pattern_type 1068
#define double_star_pattern_type 1069
#define class_pattern_type 1070
#define positional_patterns_type 1071
#define keyword_patterns_type 1072
#define keyword_pattern_type 1073
#define return_stmt_type 1074
#define raise_stmt_type 1075
#define function_def_type 1076
#define function_def_raw_type 1077
#define func_type_comment_type 1078
#define params_type 1079
#define parameters_type 1080
#define slash_no_default_type 1081
#define slash_with_default_type 1082
#define star_etc_type 1083
#define kwds_type 1084
#define param_no_default_type 1085
#define param_with_default_type 1086
#define param_maybe_default_type 1087
#define param_type 1088
#define annotation_type 1089
#define default_type 1090
#define decorators_type 1091
#define class_def_type 1092
#define class_def_raw_type 1093
#define block_type 1094
#define star_expressions_type 1095
#define star_expression_type 1096
#define star_named_expressions_type 1097
#define star_named_expression_type 1098
#define named_expression_type 1099
#define direct_named_expression_type 1100
#define annotated_rhs_type 1101
#define expressions_type 1102
#define expression_type 1103
#define lambdef_type 1104
#define lambda_params_type 1105
#define lambda_parameters_type 1106
#define lambda_slash_no_default_type 1107
#define lambda_slash_with_default_type 1108
#define lambda_star_etc_type 1109
#define lambda_kwds_type 1110
#define lambda_param_no_default_type 1111
#define lambda_param_with_default_type 1112
#define lambda_param_maybe_default_type 1113
#define lambda_param_type 1114
#define disjunction_type 1115
#define conjunction_type 1116
#define inversion_type 1117
#define comparison_type 1118
#define compare_op_bitwise_or_pair_type 1119
#define eq_bitwise_or_type 1120
#define noteq_bitwise_or_type 1121
#define lte_bitwise_or_type 1122
#define lt_bitwise_or_type 1123
#define gte_bitwise_or_type 1124
#define gt_bitwise_or_type 1125
#define notin_bitwise_or_type 1126
#define in_bitwise_or_type 1127
#define isnot_bitwise_or_type 1128
#define is_bitwise_or_type 1129
#define bitwise_or_type 1130 // Left-recursive
#define bitwise_xor_type 1131 // Left-recursive
#define bitwise_and_type 1132 // Left-recursive
#define shift_expr_type 1133 // Left-recursive
#define sum_type 1134 // Left-recursive
#define term_type 1135 // Left-recursive
#define factor_type 1136
#define power_type 1137
#define await_primary_type 1138
#define primary_type 1139 // Left-recursive
#define slices_type 1140
#define slice_type 1141
#define atom_type 1142
#define strings_type 1143
#define list_type 1144
#define listcomp_type 1145
#define tuple_type 1146
#define group_type 1147
#define genexp_type 1148
#define set_type 1149
#define setcomp_type 1150
#define dict_type 1151
#define dictcomp_type 1152
#define double_starred_kvpairs_type 1153
#define double_starred_kvpair_type 1154
#define kvpair_type 1155
#define for_if_clauses_type 1156
#define for_if_clause_type 1157
#define yield_expr_type 1158
#define arguments_type 1159
#define args_type 1160
#define kwargs_type 1161
#define starred_expression_type 1162
#define kwarg_or_starred_type 1163
#define kwarg_or_double_starred_type 1164
#define star_targets_type 1165
#define star_targets_list_seq_type 1166
#define star_targets_tuple_seq_type 1167
#define star_target_type 1168
#define target_with_star_atom_type 1169
#define star_atom_type 1170
#define single_target_type 1171
#define single_subscript_attribute_target_type 1172
#define del_targets_type 1173
#define del_target_type 1174
#define del_t_atom_type 1175
#define targets_type 1176
#define target_type 1177
#define t_primary_type 1178 // Left-recursive
#define t_lookahead_type 1179
#define t_atom_type 1180
#define invalid_arguments_type 1181
#define invalid_kwarg_type 1182
#define invalid_expression_type 1183
#define invalid_named_expression_type 1184
#define invalid_assignment_type 1185
#define invalid_ann_assign_target_type 1186
#define invalid_del_stmt_type 1187
#define invalid_block_type 1188
#define invalid_primary_type 1189 // Left-recursive
#define invalid_comprehension_type 1190
#define invalid_dict_comprehension_type 1191
#define invalid_parameters_type 1192
#define invalid_parameters_helper_type 1193
#define invalid_lambda_parameters_type 1194
#define invalid_lambda_parameters_helper_type 1195
#define invalid_star_etc_type 1196
#define invalid_lambda_star_etc_type 1197
#define invalid_double_type_comments_type 1198
#define invalid_with_item_type 1199
#define invalid_for_target_type 1200
#define invalid_group_type 1201
#define invalid_import_from_targets_type 1202
#define invalid_with_stmt_type 1203
#define invalid_with_stmt_indent_type 1204
#define invalid_try_stmt_type 1205
#define invalid_except_stmt_type 1206
#define invalid_finally_stmt_type 1207
#define invalid_except_stmt_indent_type 1208
#define invalid_match_stmt_type 1209
#define invalid_case_block_type 1210
#define invalid_if_stmt_type 1211
#define invalid_elif_stmt_type 1212
#define invalid_else_stmt_type 1213
#define invalid_while_stmt_type 1214
#define invalid_for_stmt_type 1215
#define invalid_def_raw_type 1216
#define invalid_class_def_raw_type 1217
#define invalid_double_starred_kvpairs_type 1218
#define invalid_kvpair_type 1219
#define _loop0_1_type 1220
#define _loop0_2_type 1221
#define _loop0_4_type 1222
#define _gather_3_type 1223
#define _loop0_6_type 1224
#define _gather_5_type 1225
#define _loop0_8_type 1226
#define _gather_7_type 1227
#define _loop0_10_type 1228
#define _gather_9_type 1229
#define _loop1_11_type 1230
#define _loop0_13_type 1231
#define _gather_12_type 1232
#define _tmp_14_type 1233
#define _tmp_15_type 1234
#define _tmp_16_type 1235
#define _tmp_17_type 1236
#define _tmp_18_type 1237
#define _tmp_19_type 1238
#define _tmp_20_type 1239
#define _tmp_21_type 1240
#define _loop1_22_type 1241
#define _tmp_23_type 1242
#define _tmp_24_type 1243
#define _loop0_26_type 1244
#define _gather_25_type 1245
#define _loop0_28_type 1246
#define _gather_27_type 1247
#define _tmp_29_type 1248
#define _tmp_30_type 1249
#define _loop0_31_type 1250
#define _loop1_32_type 1251
#define _loop0_34_type 1252
#define _gather_33_type 1253
#define _tmp_35_type 1254
#define _loop0_37_type 1255
#define _gather_36_type 1256
#define _tmp_38_type 1257
#define _loop0_40_type 1258
#define _gather_39_type 1259
#define _loop0_42_type 1260
#define _gather_41_type 1261
#define _loop0_44_type 1262
#define _gather_43_type 1263
#define _loop0_46_type 1264
#define _gather_45_type 1265
#define _tmp_47_type 1266
#define _loop1_48_type 1267
#define _tmp_49_type 1268
#define _loop1_50_type 1269
#define _loop0_52_type 1270
#define _gather_51_type 1271
#define _tmp_53_type 1272
#define _tmp_54_type 1273
#define _tmp_55_type 1274
#define _tmp_56_type 1275
#define _loop0_58_type 1276
#define _gather_57_type 1277
#define _loop0_60_type 1278
#define _gather_59_type 1279
#define _tmp_61_type 1280
#define _loop0_63_type 1281
#define _gather_62_type 1282
#define _loop0_65_type 1283
#define _gather_64_type 1284
#define _tmp_66_type 1285
#define _tmp_67_type 1286
#define _tmp_68_type 1287
#define _tmp_69_type 1288
#define _loop0_70_type 1289
#define _loop0_71_type 1290
#define _loop0_72_type 1291
#define _loop1_73_type 1292
#define _loop0_74_type 1293
#define _loop1_75_type 1294
#define _loop1_76_type 1295
#define _loop1_77_type 1296
#define _loop0_78_type 1297
#define _loop1_79_type 1298
#define _loop0_80_type 1299
#define _loop1_81_type 1300
#define _loop0_82_type 1301
#define _loop1_83_type 1302
#define _loop1_84_type 1303
#define _tmp_85_type 1304
#define _loop1_86_type 1305
#define _loop0_88_type 1306
#define _gather_87_type 1307
#define _loop1_89_type 1308
#define _loop0_90_type 1309
#define _loop0_91_type 1310
#define _loop0_92_type 1311
#define _loop1_93_type 1312
#define _loop0_94_type 1313
#define _loop1_95_type 1314
#define _loop1_96_type 1315
#define _loop1_97_type 1316
#define _loop0_98_type 1317
#define _loop1_99_type 1318
#define _loop0_100_type 1319
#define _loop1_101_type 1320
#define _loop0_102_type 1321
#define _loop1_103_type 1322
#define _loop1_104_type 1323
#define _loop1_105_type 1324
#define _loop1_106_type 1325
#define _tmp_107_type 1326
#define _loop0_109_type 1327
#define _gather_108_type 1328
#define _tmp_110_type 1329
#define _tmp_111_type 1330
#define _tmp_112_type 1331
#define _tmp_113_type 1332
#define _loop1_114_type 1333
#define _tmp_115_type 1334
#define _tmp_116_type 1335
#define _loop0_118_type 1336
#define _gather_117_type 1337
#define _loop1_119_type 1338
#define _loop0_120_type 1339
#define _loop0_121_type 1340
#define _loop0_123_type 1341
#define _gather_122_type 1342
#define _tmp_124_type 1343
#define _loop0_126_type 1344
#define _gather_125_type 1345
#define _loop0_128_type 1346
#define _gather_127_type 1347
#define _loop0_130_type 1348
#define _gather_129_type 1349
#define _loop0_132_type 1350
#define _gather_131_type 1351
#define _loop0_133_type 1352
#define _loop0_135_type 1353
#define _gather_134_type 1354
#define _loop1_136_type 1355
#define _tmp_137_type 1356
#define _loop0_139_type 1357
#define _gather_138_type 1358
#define _loop0_141_type 1359
#define _gather_140_type 1360
#define _tmp_142_type 1361
#define _tmp_143_type 1362
#define _tmp_144_type 1363
#define _tmp_145_type 1364
#define _tmp_146_type 1365
#define _loop0_147_type 1366
#define _loop0_148_type 1367
#define _loop0_149_type 1368
#define _tmp_150_type 1369
#define _tmp_151_type 1370
#define _tmp_152_type 1371
#define _tmp_153_type 1372
#define _loop0_154_type 1373
#define _loop1_155_type 1374
#define _loop0_156_type 1375
#define _loop1_157_type 1376
#define _tmp_158_type 1377
#define _tmp_159_type 1378
#define _tmp_160_type 1379
#define _loop0_162_type 1380
#define _gather_161_type 1381
#define _loop0_164_type 1382
#define _gather_163_type 1383
#define _loop0_166_type 1384
#define _gather_165_type 1385
#define _loop0_168_type 1386
#define _gather_167_type 1387
#define _tmp_169_type 1388
#define _tmp_170_type 1389
#define _tmp_171_type 1390
#define _tmp_172_type 1391
#define _tmp_173_type 1392
#define _loop0_175_type 1393
#define _gather_174_type 1394
#define _tmp_176_type 1395
#define _tmp_177_type 1396
#define _tmp_178_type 1397
#define _tmp_179_type 1398
#define _tmp_180_type 1399
#define _tmp_181_type 1400
#define _tmp_182_type 1401
#define _tmp_183_type 1402
#define _tmp_184_type 1403
#define _tmp_185_type 1404
#define _tmp_186_type 1405
#define _tmp_187_type 1406
#define _tmp_188_type 1407
#define _tmp_189_type 1408
#define _tmp_190_type 1409
#define _tmp_191_type 1410
#define _tmp_192_type 1411
#define _tmp_193_type 1412
#define _tmp_194_type 1413
#define _tmp_195_type 1414
#define _tmp_196_type 1415
#define _tmp_197_type 1416
#define _tmp_198_type 1417
#define _tmp_199_type 1418
#define _tmp_200_type 1419
#define _tmp_201_type 1420
static mod_ty file_rule(Parser *p);
static mod_ty interactive_rule(Parser *p);
@ -542,6 +544,8 @@ static pattern_ty literal_pattern_rule(Parser *p);
static expr_ty literal_expr_rule(Parser *p);
static expr_ty complex_number_rule(Parser *p);
static expr_ty signed_number_rule(Parser *p);
static expr_ty signed_real_number_rule(Parser *p);
static expr_ty real_number_rule(Parser *p);
static expr_ty imaginary_number_rule(Parser *p);
static pattern_ty capture_pattern_rule(Parser *p);
static expr_ty pattern_capture_target_rule(Parser *p);
@ -6318,7 +6322,9 @@ literal_expr_rule(Parser *p)
return _res;
}
// complex_number: signed_number '+' imaginary_number | signed_number '-' imaginary_number
// complex_number:
// | signed_real_number '+' imaginary_number
// | signed_real_number '-' imaginary_number
static expr_ty
complex_number_rule(Parser *p)
{
@ -6338,24 +6344,24 @@ complex_number_rule(Parser *p)
UNUSED(_start_lineno); // Only used by EXTRA macro
int _start_col_offset = p->tokens[_mark]->col_offset;
UNUSED(_start_col_offset); // Only used by EXTRA macro
{ // signed_number '+' imaginary_number
{ // signed_real_number '+' imaginary_number
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> complex_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "signed_number '+' imaginary_number"));
D(fprintf(stderr, "%*c> complex_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "signed_real_number '+' imaginary_number"));
Token * _literal;
expr_ty imag;
expr_ty real;
if (
(real = signed_number_rule(p)) // signed_number
(real = signed_real_number_rule(p)) // signed_real_number
&&
(_literal = _PyPegen_expect_token(p, 14)) // token='+'
&&
(imag = imaginary_number_rule(p)) // imaginary_number
)
{
D(fprintf(stderr, "%*c+ complex_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "signed_number '+' imaginary_number"));
D(fprintf(stderr, "%*c+ complex_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "signed_real_number '+' imaginary_number"));
Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
if (_token == NULL) {
D(p->level--);
@ -6375,26 +6381,26 @@ complex_number_rule(Parser *p)
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s complex_number[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "signed_number '+' imaginary_number"));
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "signed_real_number '+' imaginary_number"));
}
{ // signed_number '-' imaginary_number
{ // signed_real_number '-' imaginary_number
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> complex_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "signed_number '-' imaginary_number"));
D(fprintf(stderr, "%*c> complex_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "signed_real_number '-' imaginary_number"));
Token * _literal;
expr_ty imag;
expr_ty real;
if (
(real = signed_number_rule(p)) // signed_number
(real = signed_real_number_rule(p)) // signed_real_number
&&
(_literal = _PyPegen_expect_token(p, 15)) // token='-'
&&
(imag = imaginary_number_rule(p)) // imaginary_number
)
{
D(fprintf(stderr, "%*c+ complex_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "signed_number '-' imaginary_number"));
D(fprintf(stderr, "%*c+ complex_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "signed_real_number '-' imaginary_number"));
Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
if (_token == NULL) {
D(p->level--);
@ -6414,7 +6420,7 @@ complex_number_rule(Parser *p)
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s complex_number[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "signed_number '-' imaginary_number"));
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "signed_real_number '-' imaginary_number"));
}
_res = NULL;
done:
@ -6503,6 +6509,128 @@ signed_number_rule(Parser *p)
return _res;
}
// signed_real_number: real_number | '-' real_number
static expr_ty
signed_real_number_rule(Parser *p)
{
D(p->level++);
if (p->error_indicator) {
D(p->level--);
return NULL;
}
expr_ty _res = NULL;
int _mark = p->mark;
if (p->mark == p->fill && _PyPegen_fill_token(p) < 0) {
p->error_indicator = 1;
D(p->level--);
return NULL;
}
int _start_lineno = p->tokens[_mark]->lineno;
UNUSED(_start_lineno); // Only used by EXTRA macro
int _start_col_offset = p->tokens[_mark]->col_offset;
UNUSED(_start_col_offset); // Only used by EXTRA macro
{ // real_number
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> signed_real_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "real_number"));
expr_ty real_number_var;
if (
(real_number_var = real_number_rule(p)) // real_number
)
{
D(fprintf(stderr, "%*c+ signed_real_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "real_number"));
_res = real_number_var;
goto done;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s signed_real_number[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "real_number"));
}
{ // '-' real_number
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> signed_real_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'-' real_number"));
Token * _literal;
expr_ty real;
if (
(_literal = _PyPegen_expect_token(p, 15)) // token='-'
&&
(real = real_number_rule(p)) // real_number
)
{
D(fprintf(stderr, "%*c+ signed_real_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'-' real_number"));
Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
if (_token == NULL) {
D(p->level--);
return NULL;
}
int _end_lineno = _token->end_lineno;
UNUSED(_end_lineno); // Only used by EXTRA macro
int _end_col_offset = _token->end_col_offset;
UNUSED(_end_col_offset); // Only used by EXTRA macro
_res = _PyAST_UnaryOp ( USub , real , EXTRA );
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
D(p->level--);
return NULL;
}
goto done;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s signed_real_number[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'-' real_number"));
}
_res = NULL;
done:
D(p->level--);
return _res;
}
// real_number: NUMBER
static expr_ty
real_number_rule(Parser *p)
{
D(p->level++);
if (p->error_indicator) {
D(p->level--);
return NULL;
}
expr_ty _res = NULL;
int _mark = p->mark;
{ // NUMBER
if (p->error_indicator) {
D(p->level--);
return NULL;
}
D(fprintf(stderr, "%*c> real_number[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NUMBER"));
expr_ty real;
if (
(real = _PyPegen_number_token(p)) // NUMBER
)
{
D(fprintf(stderr, "%*c+ real_number[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NUMBER"));
_res = _PyPegen_ensure_real ( p , real );
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
D(p->level--);
return NULL;
}
goto done;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s real_number[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NUMBER"));
}
_res = NULL;
done:
D(p->level--);
return _res;
}
// imaginary_number: NUMBER
static expr_ty
imaginary_number_rule(Parser *p)
@ -7535,18 +7663,13 @@ items_pattern_rule(Parser *p)
return NULL;
}
D(fprintf(stderr, "%*c> items_pattern[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.key_value_pattern+"));
asdl_seq * items;
asdl_seq * _gather_59_var;
if (
(items = _gather_59_rule(p)) // ','.key_value_pattern+
(_gather_59_var = _gather_59_rule(p)) // ','.key_value_pattern+
)
{
D(fprintf(stderr, "%*c+ items_pattern[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.key_value_pattern+"));
_res = items;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
D(p->level--);
return NULL;
}
_res = _gather_59_var;
goto done;
}
p->mark = _mark;
@ -7921,18 +8044,13 @@ keyword_patterns_rule(Parser *p)
return NULL;
}
D(fprintf(stderr, "%*c> keyword_patterns[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.keyword_pattern+"));
asdl_seq* keywords;
asdl_seq * _gather_64_var;
if (
(keywords = (asdl_seq*)_gather_64_rule(p)) // ','.keyword_pattern+
(_gather_64_var = _gather_64_rule(p)) // ','.keyword_pattern+
)
{
D(fprintf(stderr, "%*c+ keyword_patterns[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.keyword_pattern+"));
_res = keywords;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
D(p->level--);
return NULL;
}
_res = _gather_64_var;
goto done;
}
p->mark = _mark;

12
Parser/pegen.c
View File

@ -2352,7 +2352,17 @@ expr_ty
_PyPegen_ensure_imaginary(Parser *p, expr_ty exp)
{
if (exp->kind != Constant_kind || !PyComplex_CheckExact(exp->v.Constant.value)) {
RAISE_SYNTAX_ERROR_KNOWN_LOCATION(exp, "Imaginary number required in complex literal");
RAISE_SYNTAX_ERROR_KNOWN_LOCATION(exp, "imaginary number required in complex literal");
return NULL;
}
return exp;
}
expr_ty
_PyPegen_ensure_real(Parser *p, expr_ty exp)
{
if (exp->kind != Constant_kind || PyComplex_CheckExact(exp->v.Constant.value)) {
RAISE_SYNTAX_ERROR_KNOWN_LOCATION(exp, "real number required in complex literal");
return NULL;
}
return exp;

3
Parser/pegen.h
View File

@ -153,7 +153,7 @@ void * _PyPegen_seq_last_item(asdl_seq *seq);
Py_LOCAL_INLINE(void *)
RAISE_ERROR_KNOWN_LOCATION(Parser *p, PyObject *errtype,
Py_ssize_t lineno, Py_ssize_t col_offset,
Py_ssize_t end_lineno, Py_ssize_t end_col_offset,
Py_ssize_t end_lineno, Py_ssize_t end_col_offset,
const char *errmsg, ...)
{
va_list va;
@ -284,6 +284,7 @@ expr_ty _PyPegen_collect_call_seqs(Parser *, asdl_expr_seq *, asdl_seq *,
int end_col_offset, PyArena *arena);
expr_ty _PyPegen_concatenate_strings(Parser *p, asdl_seq *);
expr_ty _PyPegen_ensure_imaginary(Parser *p, expr_ty);
expr_ty _PyPegen_ensure_real(Parser *p, expr_ty);
asdl_seq *_PyPegen_join_sequences(Parser *, asdl_seq *, asdl_seq *);
int _PyPegen_check_barry_as_flufl(Parser *, Token *);
mod_ty _PyPegen_make_module(Parser *, asdl_stmt_seq *);

2
Python/ast_opt.c
View File

@ -825,7 +825,7 @@ astfold_pattern(pattern_ty node_, PyArena *ctx_, _PyASTOptimizeState *state)
break;
case MatchAs_kind:
if (node_->v.MatchAs.pattern) {
CALL(astfold_pattern, expr_ty, node_->v.MatchAs.pattern);
CALL(astfold_pattern, pattern_ty, node_->v.MatchAs.pattern);
}
break;
case MatchOr_kind:

56
Python/compile.c
View File

@ -5609,6 +5609,10 @@ compiler_slice(struct compiler *c, expr_ty s)
static int
pattern_helper_store_name(struct compiler *c, identifier n, pattern_context *pc)
{
if (n == NULL) {
ADDOP(c, POP_TOP);
return 1;
}
if (forbidden_name(c, n, Store)) {
return 0;
}
@ -5782,42 +5786,23 @@ compiler_pattern_subpattern(struct compiler *c, pattern_ty p, pattern_context *p
return 1;
}
static int
compiler_pattern_capture(struct compiler *c, identifier n, pattern_context *pc)
{
RETURN_IF_FALSE(pattern_helper_store_name(c, n, pc));
ADDOP_LOAD_CONST(c, Py_True);
return 1;
}
static int
compiler_pattern_wildcard(struct compiler *c, pattern_ty p, pattern_context *pc)
{
assert(p->kind == MatchAs_kind);
if (!pc->allow_irrefutable) {
// Whoops, can't have a wildcard here!
const char *e = "wildcard makes remaining patterns unreachable";
return compiler_error(c, e);
}
ADDOP(c, POP_TOP);
ADDOP_LOAD_CONST(c, Py_True);
return 1;
}
static int
compiler_pattern_as(struct compiler *c, pattern_ty p, pattern_context *pc)
{
assert(p->kind == MatchAs_kind);
if (p->v.MatchAs.name == NULL) {
return compiler_pattern_wildcard(c, p, pc);
}
if (p->v.MatchAs.pattern == NULL) {
// An irrefutable match:
if (!pc->allow_irrefutable) {
// Whoops, can't have a name capture here!
const char *e = "name capture %R makes remaining patterns unreachable";
return compiler_error(c, e, p->v.MatchAs.name);
if (p->v.MatchAs.name) {
const char *e = "name capture %R makes remaining patterns unreachable";
return compiler_error(c, e, p->v.MatchAs.name);
}
const char *e = "wildcard makes remaining patterns unreachable";
return compiler_error(c, e);
}
return compiler_pattern_capture(c, p->v.MatchAs.name, pc);
RETURN_IF_FALSE(pattern_helper_store_name(c, p->v.MatchAs.name, pc));
ADDOP_LOAD_CONST(c, Py_True);
return 1;
}
basicblock *end, *fail_pop_1;
RETURN_IF_FALSE(end = compiler_new_block(c));
@ -5842,12 +5827,9 @@ static int
compiler_pattern_star(struct compiler *c, pattern_ty p, pattern_context *pc)
{
assert(p->kind == MatchStar_kind);
if (!pc->allow_irrefutable) {
// Whoops, can't have a star capture here!
const char *e = "star captures are only allowed as part of sequence patterns";
return compiler_error(c, e);
}
return compiler_pattern_capture(c, p->v.MatchStar.name, pc);
RETURN_IF_FALSE(pattern_helper_store_name(c, p->v.MatchStar.name, pc));
ADDOP_LOAD_CONST(c, Py_True);
return 1;
}
static int
@ -6206,7 +6188,7 @@ compiler_pattern_value(struct compiler *c, pattern_ty p, pattern_context *pc)
}
static int
compiler_pattern_constant(struct compiler *c, pattern_ty p, pattern_context *pc)
compiler_pattern_singleton(struct compiler *c, pattern_ty p, pattern_context *pc)
{
assert(p->kind == MatchSingleton_kind);
ADDOP_LOAD_CONST(c, p->v.MatchSingleton.value);
@ -6222,7 +6204,7 @@ compiler_pattern(struct compiler *c, pattern_ty p, pattern_context *pc)
case MatchValue_kind:
return compiler_pattern_value(c, p, pc);
case MatchSingleton_kind:
return compiler_pattern_constant(c, p, pc);
return compiler_pattern_singleton(c, p, pc);
case MatchSequence_kind:
return compiler_pattern_sequence(c, p, pc);
case MatchMapping_kind: