protobuf

Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/

Josh Haberman 919fea438a Ported upb to C89, for greater portability. A large part of this change contains surface-level porting, like moving variable declarations to the top of the block. However there are a few more substantial things too: - moved internal-only struct definitions to a separate file (structdefs.int.h), for greater encapsulation and ABI compatibility. - removed the UPB_UPCAST macro, since it requires access to the internal-only struct definitions. Replaced uses with calls to inline, type-safe casting functions. - removed the UPB_DEFINE_CLASS/UPB_DEFINE_STRUCT macros. Class and struct definitions are now more explicit -- you get to see the actual class/struct keywords in the source. The casting convenience functions have been moved into UPB_DECLARE_DERIVED_TYPE() and UPB_DECLARE_DERIVED_TYPE2(). - the new way that we duplicate base methods in derived types is also more convenient and requires less duplication. It is also less greppable, but hopefully that is not too big a problem. Compiler flags (-std=c89 -pedantic) should help to rigorously enforce that the code is free of C99-isms. A few functions are not available in C89 (strtoll). There are temporary, hacky solutions in place.		10 years ago
..
README	Sync to internal Google development.	11 years ago
bridge.cc	Enable Travis for Clang, and enable -Werror for all Travis builds.	10 years ago
bridge.h	Sync from internal Google development.	11 years ago
proto1.cc	Sync to Google-internal development.	10 years ago
proto1.int.h	Sync from internal Google development.	11 years ago
proto2.cc	Ported upb to C89, for greater portability.	10 years ago
proto2.int.h	Sync from internal Google development.	11 years ago

README

This directory contains code to interoperate with Google's official
Protocol Buffers release.  Since it doesn't really have a name
besides "protobuf," calling this directory "googlepb" seems like the
least confusing option, since it lives in the google::protobuf
namespace.

We support writing into protobuf's generated classes (and hopefully
reading too, before long).  We support both the open source protobuf
release and the Google-internal version (which is mostly the same
code, just in a different namespace). A single compile of upb can
support both (there are no conflicts thanks to function overloading).

The internal version supports some features that are not supported in
the open-source release.  Also, the internal version includes the
legacy "proto1" classes which we must support; thankfully this is
mostly relegated to its own separate file.

Our functionality requires the full google::protobuf::Message
interface; we rely on reflection so we know what fields to read/write
and where to put them, so we can't support MessageLite.