module

Proto::HasUnknownFields

Mixin that adds unknown field capture and re-serialization to a message class.

Include this module inside any class that inherits Proto::Message to get: capture_unknown_field(reader, field_number, wire_type) write_unknown_fields(writer)

Instance methods

add_unknown_varint(field_number : Int32, value : UInt64) : Nil

Append a raw unknown varint value when a field cannot be decoded semantically (for example, unknown enum numeric values under strict enum APIs).

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capture_unknown_field(reader : Wire::Reader, field_number : Int32, wire_type : Int32) : Nil

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capture_unknown_field(field : UnknownField) : Nil

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decode_known_enum(field_number : Int32, raw_u64 : UInt64, & : Int32 -> ) : Nil

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extension_value?(descriptor : T) : ExtensionValue | Nil forall T

Returns the last matching extension value (proto singular semantics) or nil.

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extension_values(descriptor : T) : Array(ExtensionValue) forall T

Returns all matching extension values in wire order.

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has_extension?(descriptor : T) : Bool forall T

Returns true when at least one unknown field matches the descriptor and can be decoded as an extension value.

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unknown_fields

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write_unknown_fields(writer : Wire::Writer) : Nil

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