[stdlib] Add _forEachField(of:options:body:) function #29042
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This function walks all the fields of a struct, class, or tuple, and calls `body` with the name, offset, and type of each field. `body` can perform any required work or validation, returning `true` to continue walking fields or `false` to stop immediately.
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broadwaylamb
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| /// Options for calling `_forEachField(of:options:body:)`. | ||
| public // SPI(Foundation) | ||
| struct _EachFieldOptions: OptionSet { |
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Does it need an availability annotation?
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Still looking at exactly how this function should land. Closing for now… |
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This function walks all the fields of a struct, class, or tuple type, and calls
bodywith the name, offset, and type of each field.bodycan perform any required work or validation, returningtrueto continue walking fields orfalseto stop immediately.