Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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39 lines
1.2 KiB
39 lines
1.2 KiB
// Support for registering field handlers that can write into a legacy proto1 |
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// message. This functionality is only needed inside Google. |
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// |
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// This is an internal-only interface. |
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#ifndef UPB_GOOGLE_PROTO1_H_ |
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#define UPB_GOOGLE_PROTO1_H_ |
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namespace proto2 { |
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class FieldDescriptor; |
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class Message; |
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} |
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namespace upb { |
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class FieldDef; |
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class Handlers; |
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} |
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namespace upb { |
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namespace googlepb { |
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// Sets field handlers in the given Handlers object for writing to a single |
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// field (as described by "proto2_f" and "upb_f") into a message constructed |
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// by the same factory as "prototype." Returns true if this was successful |
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// (this will fail if "prototype" is not a proto1 message, or if we can't |
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// handle it for some reason). |
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bool TrySetProto1WriteHandlers(const proto2::FieldDescriptor* proto2_f, |
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const proto2::Message& prototype, |
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const upb::FieldDef* upb_f, upb::Handlers* h); |
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// Returns a prototype for the given this (possibly-weak) field. Returns NULL |
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// if this is not a submessage field of any kind (weak or no). |
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const proto2::Message* GetProto1FieldPrototype( |
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const proto2::Message& m, const proto2::FieldDescriptor* f); |
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} // namespace googlepb |
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} // namespace upb |
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#endif // UPB_GOOGLE_PROTO1_H_
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