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bpo-40334: produce specialized errors for invalid del targets (GH-19911)

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Shantanu 2020-05-11 14:53:58 -07:00 committed by GitHub
parent 86d69444e7
commit 27c0d9b54a
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 352 additions and 181 deletions
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13
Grammar/python.gram
View File

@ -583,15 +583,19 @@ ann_assign_subscript_attribute_target[expr_ty]:
| a=t_primary '[' b=slices ']' !t_lookahead { _Py_Subscript(a, b, Store, EXTRA) } | a=t_primary '[' b=slices ']' !t_lookahead { _Py_Subscript(a, b, Store, EXTRA) }
del_targets[asdl_seq*]: a=','.del_target+ [','] { a } del_targets[asdl_seq*]: a=','.del_target+ [','] { a }
# The lookaheads to del_target_end ensure that we don't match expressions where a prefix of the
# expression matches our rule, thereby letting these cases fall through to invalid_del_target.
del_target[expr_ty] (memo): del_target[expr_ty] (memo):
| a=t_primary '.' b=NAME !t_lookahead { _Py_Attribute(a, b->v.Name.id, Del, EXTRA) } | a=t_primary '.' b=NAME &del_target_end { _Py_Attribute(a, b->v.Name.id, Del, EXTRA) }
| a=t_primary '[' b=slices ']' !t_lookahead { _Py_Subscript(a, b, Del, EXTRA) } | a=t_primary '[' b=slices ']' &del_target_end { _Py_Subscript(a, b, Del, EXTRA) }
| del_t_atom | del_t_atom
del_t_atom[expr_ty]: del_t_atom[expr_ty]:
| a=NAME { _PyPegen_set_expr_context(p, a, Del) } | a=NAME &del_target_end { _PyPegen_set_expr_context(p, a, Del) }
| '(' a=del_target ')' { _PyPegen_set_expr_context(p, a, Del) } | '(' a=del_target ')' { _PyPegen_set_expr_context(p, a, Del) }
| '(' a=[del_targets] ')' { _Py_Tuple(a, Del, EXTRA) } | '(' a=[del_targets] ')' { _Py_Tuple(a, Del, EXTRA) }
| '[' a=[del_targets] ']' { _Py_List(a, Del, EXTRA) } | '[' a=[del_targets] ']' { _Py_List(a, Del, EXTRA) }
| invalid_del_target
del_target_end: ')' | ']' | ',' | ';' | NEWLINE
targets[asdl_seq*]: a=','.target+ [','] { a } targets[asdl_seq*]: a=','.target+ [','] { a }
target[expr_ty] (memo): target[expr_ty] (memo):
@ -649,3 +653,6 @@ invalid_lambda_star_etc:
invalid_double_type_comments: invalid_double_type_comments:
| TYPE_COMMENT NEWLINE TYPE_COMMENT NEWLINE INDENT { | TYPE_COMMENT NEWLINE TYPE_COMMENT NEWLINE INDENT {
RAISE_SYNTAX_ERROR("Cannot have two type comments on def") } RAISE_SYNTAX_ERROR("Cannot have two type comments on def") }
invalid_del_target:
| a=star_expression &del_target_end {
RAISE_SYNTAX_ERROR("cannot delete %s", _PyPegen_get_expr_name(a)) }

17
Lib/test/test_grammar.py
View File

@ -801,6 +801,23 @@ class GrammarTests(unittest.TestCase):
del abc del abc
del x, y, (z, xyz) del x, y, (z, xyz)
x, y, z = "xyz"
del x
del y,
del (z)
del ()
a, b, c, d, e, f, g = "abcdefg"
del a, (b, c), (d, (e, f))
a, b, c, d, e, f, g = "abcdefg"
del a, [b, c], (d, [e, f])
abcd = list("abcd")
del abcd[1:2]
compile("del a, (b[0].c, (d.e, f.g[1:2])), [h.i.j], ()", "<testcase>", "exec")
def test_pass_stmt(self): def test_pass_stmt(self):
# 'pass' # 'pass'
pass pass

41
Lib/test/test_syntax.py
View File

@ -63,10 +63,9 @@ SyntaxError: cannot assign to __debug__
Traceback (most recent call last): Traceback (most recent call last):
SyntaxError: cannot assign to function call SyntaxError: cannot assign to function call
# Pegen does not support this yet >>> del f()
# >>> del f() Traceback (most recent call last):
# Traceback (most recent call last): SyntaxError: cannot delete function call
# SyntaxError: cannot delete function call
>>> a + 1 = 2 >>> a + 1 = 2
Traceback (most recent call last): Traceback (most recent call last):
@ -665,7 +664,7 @@ class SyntaxTestCase(unittest.TestCase):
self.fail("SyntaxError is not a %s" % subclass.__name__) self.fail("SyntaxError is not a %s" % subclass.__name__)
mo = re.search(errtext, str(err)) mo = re.search(errtext, str(err))
if mo is None: if mo is None:
self.fail("SyntaxError did not contain '%r'" % (errtext,)) self.fail("SyntaxError did not contain %r" % (errtext,))
self.assertEqual(err.filename, filename) self.assertEqual(err.filename, filename)
if lineno is not None: if lineno is not None:
self.assertEqual(err.lineno, lineno) self.assertEqual(err.lineno, lineno)
@ -677,10 +676,36 @@ class SyntaxTestCase(unittest.TestCase):
def test_assign_call(self): def test_assign_call(self):
self._check_error("f() = 1", "assign") self._check_error("f() = 1", "assign")
@support.skip_if_new_parser("Pegen does not produce a specialized error "
"message yet")
def test_assign_del(self): def test_assign_del(self):
self._check_error("del f()", "delete") self._check_error("del (,)", "invalid syntax")
self._check_error("del 1", "delete literal")
self._check_error("del (1, 2)", "delete literal")
self._check_error("del None", "delete None")
self._check_error("del *x", "delete starred")
self._check_error("del (*x)", "delete starred")
self._check_error("del (*x,)", "delete starred")
self._check_error("del [*x,]", "delete starred")
self._check_error("del f()", "delete function call")
self._check_error("del f(a, b)", "delete function call")
self._check_error("del o.f()", "delete function call")
self._check_error("del a[0]()", "delete function call")
self._check_error("del x, f()", "delete function call")
self._check_error("del f(), x", "delete function call")
self._check_error("del [a, b, ((c), (d,), e.f())]", "delete function call")
self._check_error("del (a if True else b)", "delete conditional")
self._check_error("del +a", "delete operator")
self._check_error("del a, +b", "delete operator")
self._check_error("del a + b", "delete operator")
self._check_error("del (a + b, c)", "delete operator")
self._check_error("del (c[0], a + b)", "delete operator")
self._check_error("del a.b.c + 2", "delete operator")
self._check_error("del a.b.c[0] + 2", "delete operator")
self._check_error("del (a, b, (c, d.e.f + 2))", "delete operator")
self._check_error("del [a, b, (c, d.e.f[0] + 2)]", "delete operator")
self._check_error("del (a := 5)", "delete named expression")
# We don't have a special message for this, but make sure we don't
# report "cannot delete name"
self._check_error("del a += b", "invalid syntax")
def test_global_param_err_first(self): def test_global_param_err_first(self):
source = """if 1: source = """if 1:

462
Parser/pegen/parse.c
View File

@ -204,168 +204,170 @@ static KeywordToken *reserved_keywords[] = {
#define del_targets_type 1133 #define del_targets_type 1133
#define del_target_type 1134 #define del_target_type 1134
#define del_t_atom_type 1135 #define del_t_atom_type 1135
#define targets_type 1136 #define del_target_end_type 1136
#define target_type 1137 #define targets_type 1137
#define t_primary_type 1138 // Left-recursive #define target_type 1138
#define t_lookahead_type 1139 #define t_primary_type 1139 // Left-recursive
#define t_atom_type 1140 #define t_lookahead_type 1140
#define incorrect_arguments_type 1141 #define t_atom_type 1141
#define invalid_kwarg_type 1142 #define incorrect_arguments_type 1142
#define invalid_named_expression_type 1143 #define invalid_kwarg_type 1143
#define invalid_assignment_type 1144 #define invalid_named_expression_type 1144
#define invalid_block_type 1145 #define invalid_assignment_type 1145
#define invalid_comprehension_type 1146 #define invalid_block_type 1146
#define invalid_parameters_type 1147 #define invalid_comprehension_type 1147
#define invalid_star_etc_type 1148 #define invalid_parameters_type 1148
#define invalid_lambda_star_etc_type 1149 #define invalid_star_etc_type 1149
#define invalid_double_type_comments_type 1150 #define invalid_lambda_star_etc_type 1150
#define _loop0_1_type 1151 #define invalid_double_type_comments_type 1151
#define _loop0_2_type 1152 #define invalid_del_target_type 1152
#define _loop0_4_type 1153 #define _loop0_1_type 1153
#define _gather_3_type 1154 #define _loop0_2_type 1154
#define _loop0_6_type 1155 #define _loop0_4_type 1155
#define _gather_5_type 1156 #define _gather_3_type 1156
#define _loop0_8_type 1157 #define _loop0_6_type 1157
#define _gather_7_type 1158 #define _gather_5_type 1158
#define _loop0_10_type 1159 #define _loop0_8_type 1159
#define _gather_9_type 1160 #define _gather_7_type 1160
#define _loop1_11_type 1161 #define _loop0_10_type 1161
#define _loop0_13_type 1162 #define _gather_9_type 1162
#define _gather_12_type 1163 #define _loop1_11_type 1163
#define _tmp_14_type 1164 #define _loop0_13_type 1164
#define _tmp_15_type 1165 #define _gather_12_type 1165
#define _tmp_16_type 1166 #define _tmp_14_type 1166
#define _tmp_17_type 1167 #define _tmp_15_type 1167
#define _tmp_18_type 1168 #define _tmp_16_type 1168
#define _tmp_19_type 1169 #define _tmp_17_type 1169
#define _tmp_20_type 1170 #define _tmp_18_type 1170
#define _tmp_21_type 1171 #define _tmp_19_type 1171
#define _loop1_22_type 1172 #define _tmp_20_type 1172
#define _tmp_23_type 1173 #define _tmp_21_type 1173
#define _tmp_24_type 1174 #define _loop1_22_type 1174
#define _loop0_26_type 1175 #define _tmp_23_type 1175
#define _gather_25_type 1176 #define _tmp_24_type 1176
#define _loop0_28_type 1177 #define _loop0_26_type 1177
#define _gather_27_type 1178 #define _gather_25_type 1178
#define _tmp_29_type 1179 #define _loop0_28_type 1179
#define _loop0_30_type 1180 #define _gather_27_type 1180
#define _loop1_31_type 1181 #define _tmp_29_type 1181
#define _loop0_33_type 1182 #define _loop0_30_type 1182
#define _gather_32_type 1183 #define _loop1_31_type 1183
#define _tmp_34_type 1184 #define _loop0_33_type 1184
#define _loop0_36_type 1185 #define _gather_32_type 1185
#define _gather_35_type 1186 #define _tmp_34_type 1186
#define _tmp_37_type 1187 #define _loop0_36_type 1187
#define _loop0_39_type 1188 #define _gather_35_type 1188
#define _gather_38_type 1189 #define _tmp_37_type 1189
#define _loop0_41_type 1190 #define _loop0_39_type 1190
#define _gather_40_type 1191 #define _gather_38_type 1191
#define _loop0_43_type 1192 #define _loop0_41_type 1192
#define _gather_42_type 1193 #define _gather_40_type 1193
#define _loop0_45_type 1194 #define _loop0_43_type 1194
#define _gather_44_type 1195 #define _gather_42_type 1195
#define _tmp_46_type 1196 #define _loop0_45_type 1196
#define _loop1_47_type 1197 #define _gather_44_type 1197
#define _tmp_48_type 1198 #define _tmp_46_type 1198
#define _tmp_49_type 1199 #define _loop1_47_type 1199
#define _tmp_50_type 1200 #define _tmp_48_type 1200
#define _tmp_51_type 1201 #define _tmp_49_type 1201
#define _tmp_52_type 1202 #define _tmp_50_type 1202
#define _loop0_53_type 1203 #define _tmp_51_type 1203
#define _loop0_54_type 1204 #define _tmp_52_type 1204
#define _loop0_55_type 1205 #define _loop0_53_type 1205
#define _loop1_56_type 1206 #define _loop0_54_type 1206
#define _loop0_57_type 1207 #define _loop0_55_type 1207
#define _loop1_58_type 1208 #define _loop1_56_type 1208
#define _loop1_59_type 1209 #define _loop0_57_type 1209
#define _loop1_60_type 1210 #define _loop1_58_type 1210
#define _loop0_61_type 1211 #define _loop1_59_type 1211
#define _loop1_62_type 1212 #define _loop1_60_type 1212
#define _loop0_63_type 1213 #define _loop0_61_type 1213
#define _loop1_64_type 1214 #define _loop1_62_type 1214
#define _loop0_65_type 1215 #define _loop0_63_type 1215
#define _loop1_66_type 1216 #define _loop1_64_type 1216
#define _loop1_67_type 1217 #define _loop0_65_type 1217
#define _tmp_68_type 1218 #define _loop1_66_type 1218
#define _loop0_70_type 1219 #define _loop1_67_type 1219
#define _gather_69_type 1220 #define _tmp_68_type 1220
#define _loop1_71_type 1221 #define _loop0_70_type 1221
#define _loop0_73_type 1222 #define _gather_69_type 1222
#define _gather_72_type 1223 #define _loop1_71_type 1223
#define _loop1_74_type 1224 #define _loop0_73_type 1224
#define _loop0_75_type 1225 #define _gather_72_type 1225
#define _loop0_76_type 1226 #define _loop1_74_type 1226
#define _loop0_77_type 1227 #define _loop0_75_type 1227
#define _loop1_78_type 1228 #define _loop0_76_type 1228
#define _loop0_79_type 1229 #define _loop0_77_type 1229
#define _loop1_80_type 1230 #define _loop1_78_type 1230
#define _loop1_81_type 1231 #define _loop0_79_type 1231
#define _loop1_82_type 1232 #define _loop1_80_type 1232
#define _loop0_83_type 1233 #define _loop1_81_type 1233
#define _loop1_84_type 1234 #define _loop1_82_type 1234
#define _loop0_85_type 1235 #define _loop0_83_type 1235
#define _loop1_86_type 1236 #define _loop1_84_type 1236
#define _loop0_87_type 1237 #define _loop0_85_type 1237
#define _loop1_88_type 1238 #define _loop1_86_type 1238
#define _loop1_89_type 1239 #define _loop0_87_type 1239
#define _loop1_90_type 1240 #define _loop1_88_type 1240
#define _loop1_91_type 1241 #define _loop1_89_type 1241
#define _tmp_92_type 1242 #define _loop1_90_type 1242
#define _loop0_94_type 1243 #define _loop1_91_type 1243
#define _gather_93_type 1244 #define _tmp_92_type 1244
#define _tmp_95_type 1245 #define _loop0_94_type 1245
#define _tmp_96_type 1246 #define _gather_93_type 1246
#define _tmp_97_type 1247 #define _tmp_95_type 1247
#define _tmp_98_type 1248 #define _tmp_96_type 1248
#define _loop1_99_type 1249 #define _tmp_97_type 1249
#define _tmp_100_type 1250 #define _tmp_98_type 1250
#define _tmp_101_type 1251 #define _loop1_99_type 1251
#define _loop0_103_type 1252 #define _tmp_100_type 1252
#define _gather_102_type 1253 #define _tmp_101_type 1253
#define _loop1_104_type 1254 #define _loop0_103_type 1254
#define _loop0_105_type 1255 #define _gather_102_type 1255
#define _loop0_106_type 1256 #define _loop1_104_type 1256
#define _tmp_107_type 1257 #define _loop0_105_type 1257
#define _tmp_108_type 1258 #define _loop0_106_type 1258
#define _loop0_110_type 1259 #define _tmp_107_type 1259
#define _gather_109_type 1260 #define _tmp_108_type 1260
#define _loop0_112_type 1261 #define _loop0_110_type 1261
#define _gather_111_type 1262 #define _gather_109_type 1262
#define _loop0_114_type 1263 #define _loop0_112_type 1263
#define _gather_113_type 1264 #define _gather_111_type 1264
#define _loop0_116_type 1265 #define _loop0_114_type 1265
#define _gather_115_type 1266 #define _gather_113_type 1266
#define _loop0_117_type 1267 #define _loop0_116_type 1267
#define _loop0_119_type 1268 #define _gather_115_type 1268
#define _gather_118_type 1269 #define _loop0_117_type 1269
#define _tmp_120_type 1270 #define _loop0_119_type 1270
#define _loop0_122_type 1271 #define _gather_118_type 1271
#define _gather_121_type 1272 #define _tmp_120_type 1272
#define _loop0_124_type 1273 #define _loop0_122_type 1273
#define _gather_123_type 1274 #define _gather_121_type 1274
#define _tmp_125_type 1275 #define _loop0_124_type 1275
#define _tmp_126_type 1276 #define _gather_123_type 1276
#define _tmp_127_type 1277 #define _tmp_125_type 1277
#define _tmp_128_type 1278 #define _tmp_126_type 1278
#define _tmp_129_type 1279 #define _tmp_127_type 1279
#define _loop0_130_type 1280 #define _tmp_128_type 1280
#define _tmp_131_type 1281 #define _tmp_129_type 1281
#define _tmp_132_type 1282 #define _loop0_130_type 1282
#define _tmp_133_type 1283 #define _tmp_131_type 1283
#define _tmp_134_type 1284 #define _tmp_132_type 1284
#define _tmp_135_type 1285 #define _tmp_133_type 1285
#define _tmp_136_type 1286 #define _tmp_134_type 1286
#define _tmp_137_type 1287 #define _tmp_135_type 1287
#define _tmp_138_type 1288 #define _tmp_136_type 1288
#define _tmp_139_type 1289 #define _tmp_137_type 1289
#define _tmp_140_type 1290 #define _tmp_138_type 1290
#define _tmp_141_type 1291 #define _tmp_139_type 1291
#define _tmp_142_type 1292 #define _tmp_140_type 1292
#define _tmp_143_type 1293 #define _tmp_141_type 1293
#define _tmp_144_type 1294 #define _tmp_142_type 1294
#define _loop1_145_type 1295 #define _tmp_143_type 1295
#define _tmp_146_type 1296 #define _tmp_144_type 1296
#define _tmp_147_type 1297 #define _loop1_145_type 1297
#define _tmp_146_type 1298
#define _tmp_147_type 1299
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);
@ -503,6 +505,7 @@ static expr_ty ann_assign_subscript_attribute_target_rule(Parser *p);
static asdl_seq* del_targets_rule(Parser *p); static asdl_seq* del_targets_rule(Parser *p);
static expr_ty del_target_rule(Parser *p); static expr_ty del_target_rule(Parser *p);
static expr_ty del_t_atom_rule(Parser *p); static expr_ty del_t_atom_rule(Parser *p);
static void *del_target_end_rule(Parser *p);
static asdl_seq* targets_rule(Parser *p); static asdl_seq* targets_rule(Parser *p);
static expr_ty target_rule(Parser *p); static expr_ty target_rule(Parser *p);
static expr_ty t_primary_rule(Parser *p); static expr_ty t_primary_rule(Parser *p);
@ -518,6 +521,7 @@ static void *invalid_parameters_rule(Parser *p);
static void *invalid_star_etc_rule(Parser *p); static void *invalid_star_etc_rule(Parser *p);
static void *invalid_lambda_star_etc_rule(Parser *p); static void *invalid_lambda_star_etc_rule(Parser *p);
static void *invalid_double_type_comments_rule(Parser *p); static void *invalid_double_type_comments_rule(Parser *p);
static void *invalid_del_target_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);
@ -9786,8 +9790,8 @@ del_targets_rule(Parser *p)
} }
// del_target: // del_target:
// | t_primary '.' NAME !t_lookahead // | t_primary '.' NAME &del_target_end
// | t_primary '[' slices ']' !t_lookahead // | t_primary '[' slices ']' &del_target_end
// | del_t_atom // | del_t_atom
static expr_ty static expr_ty
del_target_rule(Parser *p) del_target_rule(Parser *p)
@ -9807,7 +9811,7 @@ del_target_rule(Parser *p)
UNUSED(_start_lineno); // Only used by EXTRA macro UNUSED(_start_lineno); // Only used by EXTRA macro
int _start_col_offset = p->tokens[_mark]->col_offset; int _start_col_offset = p->tokens[_mark]->col_offset;
UNUSED(_start_col_offset); // Only used by EXTRA macro UNUSED(_start_col_offset); // Only used by EXTRA macro
{ // t_primary '.' NAME !t_lookahead { // t_primary '.' NAME &del_target_end
Token * _literal; Token * _literal;
expr_ty a; expr_ty a;
expr_ty b; expr_ty b;
@ -9818,7 +9822,7 @@ del_target_rule(Parser *p)
&& &&
(b = _PyPegen_name_token(p)) // NAME (b = _PyPegen_name_token(p)) // NAME
&& &&
_PyPegen_lookahead(0, t_lookahead_rule, p) _PyPegen_lookahead(1, del_target_end_rule, p)
) )
{ {
Token *_token = _PyPegen_get_last_nonnwhitespace_token(p); Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
@ -9838,7 +9842,7 @@ del_target_rule(Parser *p)
} }
p->mark = _mark; p->mark = _mark;
} }
{ // t_primary '[' slices ']' !t_lookahead { // t_primary '[' slices ']' &del_target_end
Token * _literal; Token * _literal;
Token * _literal_1; Token * _literal_1;
expr_ty a; expr_ty a;
@ -9852,7 +9856,7 @@ del_target_rule(Parser *p)
&& &&
(_literal_1 = _PyPegen_expect_token(p, 10)) // token=']' (_literal_1 = _PyPegen_expect_token(p, 10)) // token=']'
&& &&
_PyPegen_lookahead(0, t_lookahead_rule, p) _PyPegen_lookahead(1, del_target_end_rule, p)
) )
{ {
Token *_token = _PyPegen_get_last_nonnwhitespace_token(p); Token *_token = _PyPegen_get_last_nonnwhitespace_token(p);
@ -9889,7 +9893,12 @@ del_target_rule(Parser *p)
return _res; return _res;
} }
// del_t_atom: NAME | '(' del_target ')' | '(' del_targets? ')' | '[' del_targets? ']' // del_t_atom:
// | NAME &del_target_end
// | '(' del_target ')'
// | '(' del_targets? ')'
// | '[' del_targets? ']'
// | invalid_del_target
static expr_ty static expr_ty
del_t_atom_rule(Parser *p) del_t_atom_rule(Parser *p)
{ {
@ -9906,10 +9915,12 @@ del_t_atom_rule(Parser *p)
UNUSED(_start_lineno); // Only used by EXTRA macro UNUSED(_start_lineno); // Only used by EXTRA macro
int _start_col_offset = p->tokens[_mark]->col_offset; int _start_col_offset = p->tokens[_mark]->col_offset;
UNUSED(_start_col_offset); // Only used by EXTRA macro UNUSED(_start_col_offset); // Only used by EXTRA macro
{ // NAME { // NAME &del_target_end
expr_ty a; expr_ty a;
if ( if (
(a = _PyPegen_name_token(p)) // NAME (a = _PyPegen_name_token(p)) // NAME
&&
_PyPegen_lookahead(1, del_target_end_rule, p)
) )
{ {
_res = _PyPegen_set_expr_context ( p , a , Del ); _res = _PyPegen_set_expr_context ( p , a , Del );
@ -10000,6 +10011,86 @@ del_t_atom_rule(Parser *p)
} }
p->mark = _mark; p->mark = _mark;
} }
{ // invalid_del_target
void *invalid_del_target_var;
if (
(invalid_del_target_var = invalid_del_target_rule(p)) // invalid_del_target
)
{
_res = invalid_del_target_var;
goto done;
}
p->mark = _mark;
}
_res = NULL;
done:
return _res;
}
// del_target_end: ')' | ']' | ',' | ';' | NEWLINE
static void *
del_target_end_rule(Parser *p)
{
if (p->error_indicator) {
return NULL;
}
void * _res = NULL;
int _mark = p->mark;
{ // ')'
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 8)) // token=')'
)
{
_res = _literal;
goto done;
}
p->mark = _mark;
}
{ // ']'
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 10)) // token=']'
)
{
_res = _literal;
goto done;
}
p->mark = _mark;
}
{ // ','
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
)
{
_res = _literal;
goto done;
}
p->mark = _mark;
}
{ // ';'
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 13)) // token=';'
)
{
_res = _literal;
goto done;
}
p->mark = _mark;
}
{ // NEWLINE
Token * newline_var;
if (
(newline_var = _PyPegen_expect_token(p, NEWLINE)) // token='NEWLINE'
)
{
_res = newline_var;
goto done;
}
p->mark = _mark;
}
_res = NULL; _res = NULL;
done: done:
return _res; return _res;
@ -10962,6 +11053,37 @@ invalid_double_type_comments_rule(Parser *p)
return _res; return _res;
} }
// invalid_del_target: star_expression &del_target_end
static void *
invalid_del_target_rule(Parser *p)
{
if (p->error_indicator) {
return NULL;
}
void * _res = NULL;
int _mark = p->mark;
{ // star_expression &del_target_end
expr_ty a;
if (
(a = star_expression_rule(p)) // star_expression
&&
_PyPegen_lookahead(1, del_target_end_rule, p)
)
{
_res = RAISE_SYNTAX_ERROR ( "cannot delete %s" , _PyPegen_get_expr_name ( a ) );
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
return NULL;
}
goto done;
}
p->mark = _mark;
}
_res = NULL;
done:
return _res;
}
// _loop0_1: NEWLINE // _loop0_1: NEWLINE
static asdl_seq * static asdl_seq *
_loop0_1_rule(Parser *p) _loop0_1_rule(Parser *p)