diff options
| author | Pablo Galindo Salgado <Pablogsal@gmail.com> | 2021-11-20 18:27:40 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-11-20 18:27:40 (GMT) |
| commit | 7a1d9325287a39528b795b1e8037146777abfe3e (patch) | |
| tree | 52120380f57212078ce780146a9b09a02ec74ca6 /Grammar/python.gram | |
| parent | 985233914504c73f14a23af1c68a3709079e6913 (diff) | |
| download | cpython-7a1d9325287a39528b795b1e8037146777abfe3e.zip cpython-7a1d9325287a39528b795b1e8037146777abfe3e.tar.gz cpython-7a1d9325287a39528b795b1e8037146777abfe3e.tar.bz2 | |
bpo-45450: Improve syntax error for parenthesized arguments (GH-28906)
Diffstat (limited to 'Grammar/python.gram')
| -rw-r--r-- | Grammar/python.gram | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Grammar/python.gram b/Grammar/python.gram index 168bb3c..60fbc40 100644 --- a/Grammar/python.gram +++ b/Grammar/python.gram @@ -1140,12 +1140,16 @@ invalid_dict_comprehension: invalid_parameters: | param_no_default* invalid_parameters_helper a=param_no_default { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "non-default argument follows default argument") } + | param_no_default* a='(' param_no_default+ ','? b=')' { + RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "Function parameters cannot be parenthesized") } invalid_parameters_helper: # This is only there to avoid type errors | a=slash_with_default { _PyPegen_singleton_seq(p, a) } | param_with_default+ invalid_lambda_parameters: | lambda_param_no_default* invalid_lambda_parameters_helper a=lambda_param_no_default { RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "non-default argument follows default argument") } + | lambda_param_no_default* a='(' ','.lambda_param+ ','? b=')' { + RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "Lambda expression parameters cannot be parenthesized") } invalid_lambda_parameters_helper: | a=lambda_slash_with_default { _PyPegen_singleton_seq(p, a) } | lambda_param_with_default+ |