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johnslavikjohnslavik
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gh-145239: Accept unary plus in match literal patterns
Add '+' alternatives to signed_number and signed_real_number grammar rules, mirroring how unary minus is already handled. Unary plus is a no-op on numbers so the value is returned directly without wrapping in a UnaryOp node.
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‎Grammar/python.gram‎

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@@ -554,10 +554,12 @@ complex_number[expr_ty]:
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signed_number[expr_ty]:
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| NUMBER
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| '+' number=NUMBER { number }
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| '-' number=NUMBER { _PyAST_UnaryOp(USub, number, EXTRA) }
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signed_real_number[expr_ty]:
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| real_number
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| '+' real=real_number { real }
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| '-' real=real_number { _PyAST_UnaryOp(USub, real, EXTRA) }
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real_number[expr_ty]:

‎Parser/parser.c‎

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