diff options
author | Jisi Liu <jisi.liu@gmail.com> | 2017-07-18 15:38:30 -0700 |
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committer | Jisi Liu <jisi.liu@gmail.com> | 2017-07-18 15:38:30 -0700 |
commit | 09354db1434859a31a3c81abebcc4018d42f2715 (patch) | |
tree | b87c7cdc2255e6c8062ab92b4082665cd698d753 /src/google/protobuf/generated_message_table_driven.h | |
parent | 9053033a5076f82cf18b823c31f352e95e5bfd8d (diff) |
Merge from Google internal for 3.4 release
Diffstat (limited to 'src/google/protobuf/generated_message_table_driven.h')
-rw-r--r-- | src/google/protobuf/generated_message_table_driven.h | 72 |
1 files changed, 65 insertions, 7 deletions
diff --git a/src/google/protobuf/generated_message_table_driven.h b/src/google/protobuf/generated_message_table_driven.h index 557c57d3..5eb63dbd 100644 --- a/src/google/protobuf/generated_message_table_driven.h +++ b/src/google/protobuf/generated_message_table_driven.h @@ -31,7 +31,11 @@ #ifndef GOOGLE_PROTOBUF_GENERATED_MESSAGE_TABLE_DRIVEN_H__ #define GOOGLE_PROTOBUF_GENERATED_MESSAGE_TABLE_DRIVEN_H__ +#include <google/protobuf/map.h> +#include <google/protobuf/map_entry_lite.h> #include <google/protobuf/message_lite.h> +#include <google/protobuf/wire_format_lite.h> +#include <google/protobuf/wire_format_lite_inl.h> #if LANG_CXX11 #define PROTOBUF_CONSTEXPR constexpr @@ -54,10 +58,14 @@ namespace google { namespace protobuf { namespace internal { +// Processing-type masks. static PROTOBUF_CONSTEXPR const unsigned char kOneofMask = 0x40; static PROTOBUF_CONSTEXPR const unsigned char kRepeatedMask = 0x20; -// Check this against types. +// Mask for the raw type: either a WireFormatLite::FieldType or one of the +// ProcessingTypes below, without the oneof or repeated flag. +static PROTOBUF_CONSTEXPR const unsigned char kTypeMask = 0x1f; +// Wire type masks. static PROTOBUF_CONSTEXPR const unsigned char kNotPackedMask = 0x10; static PROTOBUF_CONSTEXPR const unsigned char kInvalidMask = 0x20; @@ -66,10 +74,11 @@ enum ProcessingTypes { TYPE_STRING_STRING_PIECE = 20, TYPE_BYTES_CORD = 21, TYPE_BYTES_STRING_PIECE = 22, + TYPE_MAP = 23, }; #if LANG_CXX11 -static_assert(TYPE_BYTES_STRING_PIECE < kRepeatedMask, "Invalid enum"); +static_assert(TYPE_MAP < kRepeatedMask, "Invalid enum"); #endif // TODO(ckennelly): Add a static assertion to ensure that these masks do not @@ -81,7 +90,9 @@ static_assert(TYPE_BYTES_STRING_PIECE < kRepeatedMask, "Invalid enum"); // AuxillaryParseTableField. struct ParseTableField { uint32 offset; - uint32 has_bit_index; + // The presence_index ordinarily represents a has_bit index, but for fields + // inside a oneof it represents the index in _oneof_case_. + uint32 presence_index; unsigned char normal_wiretype; unsigned char packed_wiretype; @@ -100,7 +111,6 @@ union AuxillaryParseTableField { // Enums struct enum_aux { EnumValidator validator; - const char* name; }; enum_aux enums; // Group, messages @@ -119,11 +129,14 @@ union AuxillaryParseTableField { struct string_aux { const void* default_ptr; const char* field_name; - bool strict_utf8; - const char* name; }; string_aux strings; + struct map_aux { + bool (*parse_map)(io::CodedInputStream*, void*); + }; + map_aux maps; + #if LANG_CXX11 AuxillaryParseTableField() = default; #else @@ -135,6 +148,9 @@ union AuxillaryParseTableField { AuxillaryParseTableField::message_aux m) : messages(m) {} PROTOBUF_CONSTEXPR AuxillaryParseTableField( AuxillaryParseTableField::string_aux s) : strings(s) {} + PROTOBUF_CONSTEXPR AuxillaryParseTableField( + AuxillaryParseTableField::map_aux m) + : maps(m) {} }; struct ParseTable { @@ -145,8 +161,19 @@ struct ParseTable { // TODO(ckennelly): Vet these for sign extension. int64 has_bits_offset; + int64 oneof_case_offset; + int64 extension_offset; int64 arena_offset; - int unknown_field_set; + + // ExplicitlyInitialized<T> -> T requires a reinterpret_cast, which prevents + // the tables from being constructed as a constexpr. We use void to avoid + // the cast. + const void* default_instance_void; + const MessageLite* default_instance() const { + return static_cast<const MessageLite*>(default_instance_void); + } + + bool unknown_field_set; }; // TODO(jhen): Remove the __NVCC__ check when we get a version of nvcc that @@ -163,8 +190,39 @@ static_assert(std::is_pod<AuxillaryParseTableField::string_aux>::value, ""); static_assert(std::is_pod<ParseTable>::value, ""); #endif +// TODO(ckennelly): Consolidate these implementations into a single one, using +// dynamic dispatch to the appropriate unknown field handler. bool MergePartialFromCodedStream(MessageLite* msg, const ParseTable& table, io::CodedInputStream* input); +bool MergePartialFromCodedStreamLite(MessageLite* msg, const ParseTable& table, + io::CodedInputStream* input); + +template <typename MEntry> +struct MapEntryToMapField; + +template <typename Key, typename Value, WireFormatLite::FieldType kKeyFieldType, + WireFormatLite::FieldType kValueFieldType, int default_enum_value> +struct MapEntryToMapField<MapEntryLite<Key, Value, kKeyFieldType, + kValueFieldType, default_enum_value> > { + typedef MapFieldLite<MapEntryLite<Key, Value, kKeyFieldType, kValueFieldType, + default_enum_value>, + Key, Value, kKeyFieldType, kValueFieldType, + default_enum_value> + MapFieldType; +}; + +template <typename Entry> +bool ParseMap(io::CodedInputStream* input, void* map_field) { + typedef typename MapEntryToMapField<Entry>::MapFieldType MapFieldType; + typedef google::protobuf::Map<typename Entry::EntryKeyType, + typename Entry::EntryValueType> + MapType; + typedef typename Entry::template Parser<MapFieldType, MapType> ParserType; + + ParserType parser(static_cast<MapFieldType*>(map_field)); + return ::google::protobuf::internal::WireFormatLite::ReadMessageNoVirtual(input, + &parser); +} } // namespace internal } // namespace protobuf |