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[3.10] bpo-34013: Generalize the invalid legacy statement error message (GH-27389). (GH-27391)

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(cherry picked from commit 6948964ecf)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
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Pablo Galindo Salgado 2021-07-27 18:52:32 +01:00 • committed by GitHub
parent be2415487a
commit b977f8510e
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7 changed files with 339 additions and 246 deletions
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@ -848,10 +848,15 @@ expression_without_invalid[expr_ty]:
| a=disjunction 'if' b=disjunction 'else' c=expression { _PyAST_IfExp(b, a, c, EXTRA) }
| disjunction
| lambdef
invalid_legacy_expression:
| a=NAME b=expression_without_invalid {
_PyPegen_check_legacy_stmt(p, a) ? RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "Missing parentheses in call to '%U'.", a->v.Name.id) : NULL}
invalid_expression:
| invalid_legacy_expression
# !(NAME STRING) is not matched so we don't show this error with some invalid string prefixes like: kf"dsfsdf"
# Soft keywords need to also be ignored because they can be parsed as NAME NAME
| !(NAME STRING | SOFT_KEYWORD) a=disjunction b=expression_without_invalid {
| !(NAME STRING | SOFT_KEYWORD) a=disjunction b=expression_without_invalid {
RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "invalid syntax. Perhaps you forgot a comma?") }
invalid_named_expression: