diff options
Diffstat (limited to 'Grammar')
| -rw-r--r-- | Grammar/python.gram | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Grammar/python.gram b/Grammar/python.gram index c5a5f1b..230d6ca 100644 --- a/Grammar/python.gram +++ b/Grammar/python.gram @@ -1095,13 +1095,15 @@ invalid_expression: RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "invalid syntax. Perhaps you forgot a comma?") } | a=disjunction 'if' b=disjunction !('else'|':') { RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "expected 'else' after 'if' expression") } +invalid_left_assignment_prefixes(memo): list|tuple|genexp|'True'|'None'|'False' + invalid_named_expression: | a=expression ':=' expression { RAISE_SYNTAX_ERROR_KNOWN_LOCATION( a, "cannot use assignment expressions with %s", _PyPegen_get_expr_name(a)) } | a=NAME '=' b=bitwise_or !('='|':=') { p->in_raw_rule ? NULL : RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "invalid syntax. Maybe you meant '==' or ':=' instead of '='?") } - | !(list|tuple|genexp|'True'|'None'|'False') a=bitwise_or b='=' bitwise_or !('='|':=') { + | !invalid_left_assignment_prefixes a=bitwise_or b='=' bitwise_or !('='|':=') { p->in_raw_rule ? NULL : RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "cannot assign to %s here. Maybe you meant '==' instead of '='?", _PyPegen_get_expr_name(a)) } |