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author | Wink Saville <wink@google.com> | 2010-05-29 13:00:38 -0700 |
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committer | Wink Saville <wink@google.com> | 2010-05-29 13:00:38 -0700 |
commit | d0332953cda33fb4f8e24ebff9c49159b69c43d6 (patch) | |
tree | 81612e8b12f590310aeb0ebf1da37b304eb7baa6 /src/google/protobuf/descriptor_database.cc | |
parent | ede38fe9b9f93888e6e41afc7abb09525f44da95 (diff) | |
download | external_protobuf-d0332953cda33fb4f8e24ebff9c49159b69c43d6.zip external_protobuf-d0332953cda33fb4f8e24ebff9c49159b69c43d6.tar.gz external_protobuf-d0332953cda33fb4f8e24ebff9c49159b69c43d6.tar.bz2 |
Add protobuf 2.3.0 sources
This is the contents of protobuf-2.3.0.tar.bz2 from
http://code.google.com/p/protobuf/downloads/list.
Change-Id: Idfde09ce7ef5ac027b07ee83f2674fbbed5c30b2
Diffstat (limited to 'src/google/protobuf/descriptor_database.cc')
-rw-r--r-- | src/google/protobuf/descriptor_database.cc | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/google/protobuf/descriptor_database.cc b/src/google/protobuf/descriptor_database.cc index 6ea674d..95708d9 100644 --- a/src/google/protobuf/descriptor_database.cc +++ b/src/google/protobuf/descriptor_database.cc @@ -37,6 +37,7 @@ #include <set> #include <google/protobuf/descriptor.pb.h> +#include <google/protobuf/wire_format_lite_inl.h> #include <google/protobuf/stubs/strutil.h> #include <google/protobuf/stubs/stl_util-inl.h> #include <google/protobuf/stubs/map-util.h> @@ -336,6 +337,35 @@ bool EncodedDescriptorDatabase::FindFileContainingSymbol( return MaybeParse(index_.FindSymbol(symbol_name), output); } +bool EncodedDescriptorDatabase::FindNameOfFileContainingSymbol( + const string& symbol_name, + string* output) { + pair<const void*, int> encoded_file = index_.FindSymbol(symbol_name); + if (encoded_file.first == NULL) return false; + + // Optimization: The name should be the first field in the encoded message. + // Try to just read it directly. + io::CodedInputStream input(reinterpret_cast<const uint8*>(encoded_file.first), + encoded_file.second); + + const uint32 kNameTag = internal::WireFormatLite::MakeTag( + FileDescriptorProto::kNameFieldNumber, + internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED); + + if (input.ReadTag() == kNameTag) { + // Success! + return internal::WireFormatLite::ReadString(&input, output); + } else { + // Slow path. Parse whole message. + FileDescriptorProto file_proto; + if (!file_proto.ParseFromArray(encoded_file.first, encoded_file.second)) { + return false; + } + *output = file_proto.name(); + return true; + } +} + bool EncodedDescriptorDatabase::FindFileContainingExtension( const string& containing_type, int field_number, |