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bpo-24612: Improve syntax error for 'not' after an operator (GH-28170)

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Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
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Pablo Galindo Salgado 2024-03-26 09:30:46 +00:00 • committed by GitHub
parent 771902c257
commit 61599a48f5
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4 changed files with 1392 additions and 964 deletions
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@ -778,6 +778,7 @@ bitwise_and[expr_ty]:
shift_expr[expr_ty]:
| a=shift_expr '<<' b=sum { _PyAST_BinOp(a, LShift, b, EXTRA) }
| a=shift_expr '>>' b=sum { _PyAST_BinOp(a, RShift, b, EXTRA) }
| invalid_arithmetic
| sum
# Arithmetic operators
@ -794,6 +795,7 @@ term[expr_ty]:
| a=term '//' b=factor { _PyAST_BinOp(a, FloorDiv, b, EXTRA) }
| a=term '%' b=factor { _PyAST_BinOp(a, Mod, b, EXTRA) }
| a=term '@' b=factor { CHECK_VERSION(expr_ty, 5, "The '@' operator is", _PyAST_BinOp(a, MatMult, b, EXTRA)) }
| invalid_factor
| factor
factor[expr_ty] (memo):
@ -1415,3 +1417,8 @@ invalid_replacement_field:
invalid_conversion_character:
| '!' &(':' | '}') { RAISE_SYNTAX_ERROR_ON_NEXT_TOKEN("f-string: missing conversion character") }
| '!' !NAME { RAISE_SYNTAX_ERROR_ON_NEXT_TOKEN("f-string: invalid conversion character") }
invalid_arithmetic:
| sum ('+'|'-'|'*'|'/'|'%'|'//'|'@') a='not' b=inversion { RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "'not' after an operator must be parenthesized") }
invalid_factor:
| ('+' | '-' | '~') a='not' b=factor { RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "'not' after an operator must be parenthesized") }