grpc-common: Add field presence tracking, required field enforcing and generation of the MessageCodec implementation #421
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Signed-off-by: Johannes Zottele <[email protected]>
Signed-off-by: Johannes Zottele <[email protected]>
…f all fields. Signed-off-by: Johannes Zottele <[email protected]>
Signed-off-by: Johannes Zottele <[email protected]>
Signed-off-by: Johannes Zottele <[email protected]>
…sses Signed-off-by: Johannes Zottele <[email protected]>
Signed-off-by: Johannes Zottele <[email protected]>
Signed-off-by: Johannes Zottele <[email protected]>
Mr3zee
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Aug 4, 2025
grpc/grpc-core/src/commonMain/kotlin/kotlinx/rpc/grpc/pb/InternalMessage.kt
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grpc/grpc-core/src/commonMain/kotlin/kotlinx/rpc/grpc/utils/BitSet.kt
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protoc-gen/src/main/kotlin/kotlinx/rpc/protobuf/ModelToKotlinCommonGenerator.kt
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protoc-gen/src/main/kotlin/kotlinx/rpc/protobuf/ModelToKotlinCommonGenerator.kt
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Signed-off-by: Johannes Zottele <[email protected]>
Mr3zee
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Aug 4, 2025
…d generation of the MessageCodec implementation (#421) * grpc-pb: Refactor subtyping hierarchy Signed-off-by: Johannes Zottele <[email protected]> * grpc-pb: Add presence tracking and required field check Signed-off-by: Johannes Zottele <[email protected]> * grpc-pb: Add PresenceIndices object that holds the presence indices of all fields. Signed-off-by: Johannes Zottele <[email protected]> * grpc-pb: Move BitSet to utils Signed-off-by: Johannes Zottele <[email protected]> * grpc-pb: Add MessageCodec object for each message Signed-off-by: Johannes Zottele <[email protected]> * grpc-pb: Use only fully qualified names for kotlinx.rpc.grpc.pb.* classes Signed-off-by: Johannes Zottele <[email protected]> * Revert kotlin version increase Signed-off-by: Johannes Zottele <[email protected]> * grpc-pb: Remove demo test Signed-off-by: Johannes Zottele <[email protected]> * grpc-pb: Address PR comments Signed-off-by: Johannes Zottele <[email protected]> --------- Signed-off-by: Johannes Zottele <[email protected]>
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Subsystem
gRPC/Common - Protobuf
Description
This PR adds presence tracking for fields with explicit presence on the wire.
It does this by adding a
presenceMaskto each message, implemented asBitSet. The presence of each field that has explicit presence is represented by a bit in the mask.If a required field (
requiredfield in proto2 or a field annotated with[ LEGACY_REQUIRED ]in editions) is not present after construction, an error is thrown.This is done for both, user constructed messages (e.i. by the generated
invokefunction) and messages that were decoded from the wire using the message's decode function.Additionally, the PR adds generation of an implementation of the
MessageCodecinterface, used by the gRPC implementation to encode and decode messages. It is made available as object in the companion object of the generated internal message. E.g.MyMessageInternal.CODEC