Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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51 lines
1.8 KiB
51 lines
1.8 KiB
// |
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// upb - a minimalist implementation of protocol buffers. |
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// |
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// Copyright (c) 2011-2012 Google Inc. See LICENSE for details. |
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// Author: Josh Haberman <jhaberman@gmail.com> |
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// |
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// 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 a low-level interface; the high-level interface in google.h is |
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// more user-friendly. |
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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 google { |
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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 field in "m", if it is weak. The returned |
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// message could be the linked-in message type or OpaqueMessage, if the weak |
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// message is *not* linked in. Otherwise returns NULL. |
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const proto2::Message* GetProto1WeakPrototype(const proto2::Message& m, |
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const proto2::FieldDescriptor* f); |
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// Returns a prototype for the given non-weak field in "m". |
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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 google |
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} // namespace upb |
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#endif // UPB_GOOGLE_PROTO1_H_
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