Squashed 'third_party/flatbuffers/' changes from acc9990ab..d6a8dbd26
d6a8dbd26 Experimental fix for failing oss-fuzz coverage build (#6259)
ed391e177 BREAKING: Rust flexbuffers serde human readable set to false (#6257)
a49531414 Update to flags in fuzzing-cmake file (#6256)
de1f0342c Remove _POSIX_C_SOURCE and _XOPEN_SOURCE definitions when compiling o… (#6205)
d0d51e2a5 flatc should support --binary --schema with optional scalar fields. (#6252)
33ab26017 Bump version of rules_go to 0.24.5 (#6234)
febb9d87c Union As Accessors for C# (#6251)
8778dc7c2 Resets buffer without deallocating current pointer (#6247)
aae376e9a Add GetBufferSpan() function to bufferbuilder (#6235)
0ff047148 Modernize android build and sample (#6229)
46a8c7e95 Added required-nested-flatbuffer to monster_test and fixed rust (#6236)
bc56c553e Notify based on Labelling issues and PR (#6241)
07d7cd78a Converted globs to use single quotes (#6240)
cdef70e24 More adjustments to the auto labeler (#6239)
9dd44df35 Updated Lua labeller glob (#6238)
c9b29d088 Support size-prefixed buffers and add tests for size-prefixed messages (#6232)
fba93e0ab Removes duplicate swift in labeler (#6228)
d1a545b1f Added more labels for auto labeler (#6227)
ea92a668d [C#] Optional Scalars (#6217)
6034de286 [Label Bot] Add Java and Kotlin support for the label bot (#6226)
b08b0a440 Implement `Debug` trait for Rust flatbuffers. (#6207)
17ae48dec [Label Bot] Adds some languages to labeler bot (#6222)
fc8097925 Auto Labeler Setup, Just C# for now (#6221)
55658f523 Auto Labeler Setup, Just C# for now (#6218)
14ecfe423 Updated comments and fixed a fundamental type error. (#6214)
a0182cdb1 optional scalars for ts/js (#6215)
0dfcc0a37 Adds NetTest.bat to run .NET Core tests on Windows (#6216)
f9a18ea63 [Java] Implement optional scalars (#6212)
c7586e85a Empties the sharedString map on reset on go and csharp (#6187)
914c64601 Removed C# references from java generator. Move annotations closer to definitions (#6204)
42d7c7997 Adds readable size to asserts in read functions (#6210)
e68e8d7de Refactor idl_gen_rust (#6206)
84809be7e Fix typo in flatbuffers::span declaration. (#6202)
1606fb637 Kotlin test optional enum (#6201)
fe8e3c7e5 Mass Refactoring to use `IsString` and other BASE_TYPE helpers (#6193)
8f6fa4b71 Updated SupportsAdvancedUnionFeatures to look out for string (#6190)
b46db38f5 [JS/TS] Rewrite flexbuffers JS to TS (#6148)
9fa1d2705 Rework enums in rust. (#6098)
a402b3aba idl_gen_json_schema Fix generation of arrays of enums (#6184)
0e1415b99 fix(go_test): remove deprecated grpc call (#6183)
5cd713710 Add generation of JSON Schema to library (#6165)
5be777e1d Bump junit from 4.12 to 4.13.1 in /grpc/tests (#6173)
a49d440ec Bump junit from 4.12 to 4.13.1 in /grpc (#6172)
4ec5e8db9 [C++] Add option to not generate direct copy methods. (#6166)
04bec23a3 Add Array initialization from struct constructor (#5865) (#6147)
77d57fd07 Cast to right type for reserved_ subtraction (#6167)
543c1bbeb Fixed rust nested flatbuffers for tables other than self (#6062)
cb971eece [C++] Fix -Wnarrowing and -Woverflow due to signed bitfields on G++ ARM (#6163)
7b9e61fcc [TS] GRPC Implementation (#6141)
3359e3042 Moved C++ to optional_scalars2 and added some tests. (#6162)
187a4787f [Rust] Upgrade flatbuffers library to 2018 edition (#6159)
08943aa26 Flatbuffer C++ UnpackTo optimization for vectors of non-bool bytes. (#6154)
5975658eb Enables optional enums in swift (#6160)
5d3cf440e Updated Lobster test for optional bools/enums
8ec8322f0 Ruopt enum (#6156)
bbcc85fd4 Fix generation of C++ code with Optional<Enum> (#6155)
0bdf2fa15 [C#] Fix and improve project files (#6142)
2eedc769d possibility to create a vector from an iterator (#6135)
ab01ae162 flatc should output a warning, when an attribute is attached more than once (#6146)
689bfafa7 [Python/JS/TS] Codegen SizeOf method for structs (#6136)
641309a5b unix2dos on tests/FlatBuffers.Test/FlatBuffers.Core.Test.csproj (#6133)
52e362879 SpanT is available in .Net Standard 2.0. (#6137)
dca12522a Add static cast to avoid implicit double promotion. (#6132)
e0bbaa6f9 [C#]Change to ENABLE_SPAN_T that doesn't require UNSAFE_BYTEBUFFER. (#6073)
ab139d6be Revert "[C#] Fix and improve project files (#6116)" (#6130)
34d67b425 Minireflect fixed array (#6129)
96d5e3597 [JS/TS] fix flatbuffers default export (#6123)
eb686a86f Add missed file generated by optional_scalar.fbs (#6125)
750281630 [C#] Fix and improve project files (#6116)
fb4e1c34f Add CharToLower and CharToUpper into util.s (#6126)
8c67b5b12 Add support of Optional<T> scalars to C++ code generator (#6092)
6228b66d3 [Kotlin] Support for optional scalars. (#6115)
e1be8aaad Bump version for latest swift version (#6121)
94873e595 [JS/TS] Modernize TypeScript / JavaScript flatbuffers support (#6095)
b8e87fafe [JS] Add getFullyQualifiedName() (#6119)
f96d1ef74 [Java] allowing larger buffer sizes when growing a byte buffer (#6118)
89435303b [Swift] Migrates struct write APIS to write directly to the buffer (#6093)
c75ae2429 Optional-ness in reflection (#6097)
338944d3d Rename Nullable scalars to Optional scalars (#6112)
f5ab24bc4 Avoid memcpy call for empty vectors (#6111)
92a8c1a0f [JS] FlexBuffers Fix for wrong type of offset and length values (#6107)
6cea45dcd fix c# json serializer commandline argument docs (#6104)
fec58aa12 Fix for issue 6100: incorrect shrinking logic in ResizeContext() (#6102)
71aca81ff [JS] FlexBuffers Support (#5973)
04d87ffec [C++] Small refactoring of the C++ code generator (#6091)
bb25956f0 Wrap verify file id condition in Check call (#6085)
49f4948f0 + Add `removable-media` plug to the snapcraft config (#6083)
eeacc53d2 Adds proper access types for swift object api & flatbuffers & grpc (#6081)
f3003e08d [Lobster] missed a test
d713a0084 [CMake] enabled multi-core builds in VS projects
77f966f89 [Lobster] optional scalars support
e86d5b8e9 [Kotlin] Attach JvmStatic annotation to each method in companion object (#6052)
db2aa9b4e [C#] Cleaned up .NET testing script for Mono (#6016)
63cc0eec4 Adds a serialize helper function to native table (#6059)
c30a87de6 [TS] Fix four bugs with imported types in TypeScript. (#6054)
a0fb30575 [Swift] Append namespace for Swift Grpc implementation (#6049)
77c18c1d6 export a __version__ variable for python module (#5309)
f1f23d08e adding fb import when no other imports are present (#6030)
f1025b284 [Feature] Checks for Nullable strings (#6050)
5d052f4e5 [Swift] RFC: Switch Swift namespace from public enum to ordinary concat with _ (#6045)
18b015d25 Rust codegen improvements and lint fixes (#6046)
d76e93f27 adds code gen for optional scalars in swift (#6038)
82fac326c [C++] Fix compiler error from deleted assignment operator (#6036) (#6047)
043b52bd4 Optional Scalars support for Rust (#6034)
c8fa0afdf Allow to run cpp tests under grpc/tests/ using bazel. (#6040)
6d0aae73c Fix git command executed in wrong folder when doing cmake superbuild (#6039)
ff1b73128 [Swift] Optional Scalars Preparation (#6028)
2e48c8dd3 tests: Check for both quiet and signaling NaN on mipsel/hppa (#6029)
6942704f2 support deprecated flag in json schema (#6022)
9ecd2e16c Flatc parser support for nullable scalars (#6026)
33e2d8079 [Dart] Generate constant values map for enums (#6025)
969d0f7a6 Using proper symbol name for reexport (#6021)
515a4052a Silence false positive "-Wstringop-overflow" on GCC 10.0 to 11.0 (#6020)
36fbe6f13 Updated FB import (#6019)
b69fc8cc9 [Java] Add support for shared strings on FlatBufferBuilder. (#6012)
ab6af18d9 Not using non-existent create method for obj api (#6015)
37a5dee10 Code cleanup + updates test and readme (#6004)
8a721f69a Serde with bytes maps to Blob (#6009)
e810635ea [Swift] FlatBuffers createMonster method doesn't treat struct properly (#5992)
4995e1527 Manage grpc dependency in Bazel's WORKSPACE file. (#5995)
60b6066fe Add warning to schema parser if field name is not snake_case. (#6005)
35d45cac7 [Rust] Flexbuffers dependency cleanup and fixes (#5998)
165a6e3d1 Re-added Evolution Schema Code Generation Command (#5999)
13d3fb2ea Fix RPM install conflict (#6003)
d64078eb2 [Swift] Initialize memory when clear ByteBuffer (#5982)
ca1190a3d [TS] Use proper TypedArray in create*Vector (#5991)
7571b2ac5 [C++] Updates real_path to be truly portable (#5787)
e5a8f76a4 [C++] Generate default member initializers for >= C++11 (#5989)
413bb9b55 [Kotlin] Fix Access to union of vector element (#5994)
f35184aef [Swift] Add parsing from unowned UnsafeMutableRawPointer for ByteBuffer (#5981)
b124b7625 Removed requirement that enums be declared in ascending order. (#5887)
0ec7600c6 Do not remove the last digit from float values (#5974)
14baf45c9 Mark GetBufferMinAlignment() const (#5985)
9abb2ec2c TypeScript/JavaScript docs improvements (#5984)
2e57d80b1 [Swift] Internal library improvements (#5965)
cfc7753a4 [Doc] Added missing letters to compiler options (#5976)
12ddc8a92 Rust Flexbuffers Documentation update (#5979)
24ad35709 [docs] typo: updates monsterdata.json to be valid json (#5978)
cc44a4442 [idl_parser] Mark typefield as deprecated (#5958)
9ab4a5c0e Deleted old stale bot
6682cfe87 Increased Operations per run in stale.yml
64922904b Adding Stale Action to clean up PR and Issues
8e505cb67 [C++] Fixed/Enabled --cpp-ptr-type std::shared_ptr [#5813] (#5959)
a28357d7a Propagate boolean default values from proto to fbs (#5964)
7cb4762a6 [Swift] Improving reallocation time by using memcpy and moving reallocation code to storage (#5960)
4e45f7c9e Fix error in SimpleQSort (#5955)
7ac026405 fix error on GRPC Python - ignore namespace tree if not specified (#5862) (#5922)
108e981db Required is now implemented in swift (#5952)
94a78e385 Fixed: Access violation and ASAN/UNSAN failures with sorted tables
53fb453e0 [rust] Add FlatBufferBuilder::force_defaults API (#5946)
17c1f35fa [FlexBuffer][Java] ReadWriteBuf and ReadBuf interface public (#5948)
2eaf57778 [Java] Grow ArrayReadWriteBuf enough to match requested capacity. (#5921)
666800da3 Adds bool support in structs + updates grpc support + CI upgrades (#5943)
38ed69eb3 fixed mutating inline values (#5942)
d026e6f07 Add static asserts to ensure that reflection API arrays are kept in sync (#5934)
988164f6e [C++] Got rid of memset's in constructors (#5938)
7179a5a8b General Codebase clean up (#5939)
a0da0c08c Add GetStringView like GetString, GetCstring (#5937)
ac203b209 [C#] Add file identifier to ObjectAPI Serialization Utility. (#5920)
8dd1bf25b not creating creation methods when using structs (#5919)
5aa443d98 [Dart] Adding FlexBuffers support (#5853)
0fa087657 [Dart] Getting tests/DartTest.sh to work on master. (#5915)
424a473e1 Schema parser: prohibit declaration of an array of pointers inside structs (#5907)
c3faa8346 Fix Cargo.toml dependencies (#5911)
91399ad05 fix union type names (#5902)
32782e4ad Update Rust Flexbuffers metadata before publishing (#5905)
e7f3b1690 [TS] Make Obj-API work with --short-names (#5898)
12ed1fe4a fixed invalid imports with --gen-all (#5895)
85ee4df7a [C#] Thread safe reads of Double and Float values from a ByteBuffer (#5900)
de89bd193 Implement flexbuffers in python (#5880)
8be05f6bd Rust Flexbuffers (#5669)
870ecbc09 [swift] Moves code to use VTablesStorage (#5888)
c2da8d5d8 [Java][FlexBuffers] Make FlexBuffersBuilder reusable by adding clear() (#5889) (#5890)
e84cbff67 Align package name to FindFlatBuffers.cmake (#5899)
f94e6c84e Small tutorial improvements - documentation only (#5894)
f12cca8bc Attempt at adding Github Actions CI
7e4124d6e Handle git program or .git folder absence (#5878)
a875d247a only add native_include_files if object based api is enabled (#5886)
6e9f5d981 Respect shared attribute in Parser (#5885)
ff1c78233 include/flatbuffers: typo fixes in comments (#5884)
2e9a19673 Updates swift docs for package management (#5883)
e3cb07d32 [Rust] idl_gen_rust.cpp: (Option/required-aware codegen for unions) (#5850)
712866d57 Propagate use_string_pooling in CopyTable (#5879)
44c919a9e Not using reexports with --gen-all (#5873)
99aa1ef21 Added INCLUDE_PREFIX option for flatbuffers_generate_headers (#5866)
40ba170c9 Fixed text in internals doc that implied structs can be root
cb4d0f72e [Swift] Object API support (#5826)
003e16405 [TS] Add Obj API (#5788)
21cf300f4 fix cpp usage markdown error (#5845)
9655e12d6 Upgraded swift implementation for grpc (#5843)
fb96fadc2 [C#] Fix nested structs and arrays in Object API (#5765)
408f11fbd [ts] Fix empty source/dest namespaces when reexporting. (#5841)
a83caf591 Improves performance for the swift library by using structs + a storage class (#5835)
925fab6b1 [Java][FlexBuffers] Optimize Map access (#5735)
d9fecc332 [CMake] : Add precompiled header support with FLATBUFFERS_ENABLE_PCH (#5827)
e9d453240 Added flatbuffers_generate_headers and flatbuffers_generate_binary_files cmake functions. (#5830)
c37c989ed Correct calculation of vector element size (#5831)
6b271b7ec Fix Clang-trunk warnings about special members deprecated in C++20. (#5829)
90f3b8e8c Fix `float_constant` definition in './doc/Grammar.md` (#5828)
3af735934 [csharp] flatc should generate a 'Create…' method for tables with struct field… (#5818)
c4231c3cb Updated doxyfile - added missing files (#5824)
9657df184 Update Grammar.md (#5820)
97ffc590e Include CPack only when explictly packaging (#5817)
8b52af65b [C++] Add max_depth and max_tables parameters to reflection::Verify (#5815)
9b034eee1 Fix interpretation of 'nan(number)' by the idl_parser (#5810)
3e9ac3cff [Scripts] Adds swift to generated code (#5806)
697147a2e updated maven build files
6df40a247 pre-tag version bump for 1.12
0dba63909 Removes the inner loop in the endtable check written tables (#5803)
0e3fdd0ee Escape characters in jsonschema descriptions (#5644)
45a2b07cb Remove `noexcept` qualifier copy-ctor of `union` type (#5800) (#5802)
d10c16314 Replace 'assert' by 'FLATBUFFERS_ASSERT' inside idl_parser.cpp (#5799)
35abb7f89 Add non-nullable modifier to return type of functions never returning null (#5797)
9954e09ab [C++] Generate code for vector force_align attribute. (#5796)
95a21327f rust: pub export the VectorIter type (#5736)
89b6183ee Fix Python min alignment
5a98d65e8 [Rust] Add gen-name-strings for Rust (#5757)
f73d205bc Removed assert that wasn't backwards compatible.
7c37abe92 [C#] add ObjectAPI Serialization Utility (#5785)
4749e77b0 Fixed docs on how to obtain parser error.
6ff189841 Added --filename-suffix and --filename-ext to flatc (#5778)
c9a30c9ca Fixed refractoring issue in reflection/generate_code.sh. Also, mv deletes the original file, so I don't need to clean it up manually in that case. (#5777)
8c02d17be Skip writing reflection_generated.h if not changed (#5776)
34305c4ce [Swift] Adds GRPC to Swift (#5758)
cd88e6b2a [Java][FlexBuffers] Abstract buffer access from ByteBuffer (#5743)
3ec7a53c6 Adds cocoapods and a readme of how to get the package (#5771)
6d44cede7 [snap] Fix versioning (#5727)
cc08c0835 [Python] Fixed potential allignment issue (#5768)
54f8b787c Fix memory leak on cpp object api (#5761)
17557f913 [Python] Fixed issue #5499 (#5764)
d54af8cd4 [C++] Use strong enum type for vectors when scoped-enums is on. (#5750)
173e10fdf [C#] support Json Serialization (#5752)
8f56990f6 FlexBuffers: C++: scalar-only typed vectors were not aligned.
6400c9b05 Bump Rust port to 0.6.1 (#5747)
7418d8587 [C#] support Object API (#5710)
c580fa284 Adds min and max, comments, and all of swift's keywords + fix docs (#5737)
f2a127230 Use VS 2017 and 2019 on CI, fix cast issue in dart_idl (#5740)
316d7c208 Creates a flatbuffers validation function + small fix (#5725)
47026ea6b Added the code to embed the binary schema to the source (--bfbs-gen-embed). (#5701)
3f677f241 [Java][FlexBuffers] Deprecate typed vector strings due to design flaw (#5722)
a593a11e5 [Go] Implements a SharedStrings function (#5733)
7cdfc8475 [Swift] Fix padding function overflow when bufSize is 0 (#5721)
bab2b0db4 Add vcpkg installation instructions (#5732)
89418eb84 [Dart] Fix deprecated field support, inf/nan (#5724)
9cadf05d8 [typescript] Size-prefixed root accessors not taking into account size prefix (#5717)
6da1cf79d [rust] Add use declarations to Rust-generated bindings for imported FB definitions (#5645)
bee1df96d [Go] Replace references to hardcoded ”Monster" etc with idiomatic go wherever possible (#5716)
01189d7ed [C++] Fix for printing of enum in case output_enum_identifiers=1. (#5706)
c4b2b0a25 [Swift] Support create long string (#5709)
a4b2884e4 Added create function for swift (#5707)
04d80f255 [Swift] Swift implementation 🎉🎉 (#5603)
55686100a Changed direct calls to strtod to use StringToNumber
718351831 Document JSON compatibility guarantees. (#5704)
d1b34f0f2 Add CMake 'generated_code' target to simplify resolution of build dependencies (#5697)
21b706196 (Optionally) add an additional suffix namespace to generated fbs files. (#5698)
35daaf83d [Java] Replace Table.UTF8_CHARSET with StandardCharsets.UTF_8 (#5696)
3b458f7a1 Rust: Temporarily disable 2 endianness unit tests (#5695)
a5d9d0f7d [C++17] Add Traits class for Tables and Factory function within it. (#5678)
3cd9b6434 Removed code_generators.cpp from library targets
355dfd48d [rust] Make enum names public (#5690)
bcd58a159 Correct inverted logic around include prefixes. (#5689)
a2c12900a Optimize Pack method using numpy (#5662)
901b89e73 [C++] Add Builder and Table typedefs (#5685)
31f879908 Minor doc updates: FlexBuffers C#, Discord, CppUsage.
8023d99e2 Upgrade rules_go (#5684)
b4154405d Fix --incompatible_load_cc_rules_from_bzl (#5683)
04c17c7a7 Add support for absl::string_view when available (#5682)
62ec7d52c [Bazel] Add support for compatible_with and restricted_to (#5681)
7de668053 CI: New Docker tests for Python with numpy (#5677)
3a70e0b30 Fixed struct initialization error on older versions of C#
9b1320135 Fixed warnings in FlexBuffers.java
5e3916050 Fixed out of date licenses on gRPC Python files.
c95755051 Removed test proto output.
44bf71988 Add flatc '--cpp_std' switch (#5656)
3e8f15df9 Fix for FlexBuffers FBT_VECTOR_STRING size bit-width.
602721a73 Added Check to VerifyAlignment (#5675)
13c05f4da Improve import handling for proto conversion (#5673)
ce3a1c43a [Dart] Fix prepare space for writeListInt64 and writeListUint64 (#5654)
aa75e5734 Make Rust constants public (#5659)
2790fee25 Add namespace qualification to union types (#5666)
eddebec1b Bugfix for Rust generation of union fields named with language keywords (#5592)
030fee36a wrap multiple statements in do {} while(!IsConstTrue(true)) (#5655)
f9724d1bd [gRPC] Uncomment MessageBuilder (#5658)
b20801ca4 Supress unsigned-integer-overflow for PaddingBytes (#5647)
a8e800bd7 Add --force-empty-vectors option (#5653)
d7530ae96 Fixed enum min/max values not properly escaped.
99d11e279 Split Bazel targets into multiple packages (#5640)
4fd8eb214 Remove a static_assert (#5643)
65f870357 Flatbuffers Python Object API (#5616)
75823cc27 [Clang 10]: definition of implicit copy constructor for 'TableKeyComparatoris deprecated #5649 (#5650)
58e279244 [docs]: add missing semicolon (#5648)
3c964e10a [GO] Fix support for enums with underscores and Unions with imported members (#5600)
c3c32ec94 Fix ambiguity of a type deduction in TEST_EQ macro if arguments have `enum class` type. (#5630)
075e8d676 Simplify declarations of x-macro FLATBUFFERS_TD (#5638)
bcf1bd5c9 read vtable size through ReadScalar() (#5636)
136d75fa6 Changed null checks in test. Removed verifier pointer usage (#5634)
091fa1fd1 Add testing of C++ with sanitizers (CI-Docker) (#5631)
ff3781dc2 add namespace prefix in FLATBUFFERS_MAX_BUFFER_SIZE (#5629)
6beb9f49c Support for python grpc - continuing the work from the pull request #4270 #4705 (#5613)
80988ea86 Removed idl_gen_general.cpp and move contents to code_generators.cpp (#5625)
0f2ff7eaa Lua cleanup (#5624)
dda095023 [C++] Adds basic schema evolution tests (#5611)
adbcbba5d [C++, C#, Java] Separated C# and Java generators into their own classes (#5618)
cbbd6aca0 add check for root_type specified for json schema generation (#5622)
405c64e07 [Rust] Bump smallvec version to 1.0 (#5621)
42c08cbca Ran src/clang-format-all.sh (#5617)
33d5dd9bd Improved pull request & clang-format instructions.
105dd528e Change monster_extra generation to use flatbuffers::unique_ptr (#5612)
f0f0efe7b [C++] Refactor to conform to Google C++ style guide (#5608)
e837d5a29 Fixed deprecated method in GRPC Java test.
9834ee978 Fixed Apache license not using canonical version.
44b2ab087 include/flatbuffers/base.h: fix no_sanitize issue with old clang (#5610)
46ae3f80a [C++, Java, C#, TypeScript, JavaScript] Skip generation of mutable union types (#5599)
7b38aa71e flatbuffers.h: fix documentation warning (#5607)
661bedd83 Add Lua FlatbufferBuilder Clean() method to enable reuseable builders (#5606)
8526e12d7 [Kotlin] Fix union vector accessor after change in Java API (#5605)
3c7b660d6 [flatc] Remove an always true condition for flexbuffers (#5604)
964365ba6 [Go] Add UnPackTo functions (#5598)
32254b7ac [Go] Object API support (#5339)
521e255ad Rust: Add idiomatic iterator for Vector type (#5579)
1b85292fd Fix typos in comments (#5590)
480815447 C++ verifier for evolved union fields should return true (#5586)
8d5e424c6 Add ByteBuffer copy for vector of bytes in Java (#5587)
b4774d235 Rust: Fix Copy and Clone impls for a few generic types (#5577)
26f238c24 Add `--clean-first` to the cmake-build command (travis) (#5574)
e93c8c46e Fix Follow implementation for bool (#5554)
e21516b9d Fix issue #5557 (#5573)
fbc11e8ae Avoid intentional unsigned integer overflow getting caught by sanitizers (#5572)
e9d29c21a Python: Add forceDefaults opt to python Builder (#5564)
8bfafc76d Java: Don't annotate vector-of-tables item getters with @nullable. (#5562)
df3e8bf4a Fixed warnings generated by recent JSON sorting feature.
5665cfe49 [Java] byte buffer factory returned buffer capcity is used instead of the requested size (#5558)
5797540ed #5544 Fix of Array of table is not sorted if Create<type>Direct() is used (#5546)
7f1af7cb0 Fix build with gcc version 7.4.0 (#5570)
32f47ad24 Fixed JSON parser not sorting vectors of tables/structs with key.
842f672ba [FlexBuffers][Java] Cache size of Sized objects in FlexBuffers (#5551)
d4cae0a62 Fix issue #5542 (#5543)
f1147f65b Fixed Android STLPort related error.
69d3fec48 Fix namespaced struct/field name collision detection (#5540) (#5545)
cfb4ecf6f [flac] Add FlexBuffers option for generating data (#5519)
a92039687 Update Rust versions under test from 1.30.1 to 1.37.0 (#5538)
625338d09 Adds XOPEN_SOURCE for PATH_MAX and POSIX 1993 for stat (#5529)
3f8ce99c5 [FlexBuffers][Java] Add override Key::toString (#5533)
0798b7b69 [FlexBuffers][Java] Fix wrong access to a string using Reference::asString(). (#5532)
cbdf82e2f Fix Mutate() methods of Array<scalar/struct> (override 5508) (#5526)
e365c502f Java: Added access object for vector of struct and vector of tables. (#5233)
97f3aa917 Fixed DetachedBuffer self move assignment (#5521)
2f5bb2eec Fix buildifier warnings found in new bazel (#5517)
917687c7a Fixed Reflection Verifier not handling vectors of unions.
f9277e691 Fixed GenerateText not handling vectors of unions.
2706381ee Add element size parameter to __vector_as_arraysegment [c#] (#5512)
b5560fcd5 [Java][FlexBuffers] Improve documentation for FlexBuffers in Java. (#5506)
782b865c5 Annotate getters with @Pure when --java-checkerframework is specified. (#5510)
3bfc86eaf [Dart]fix: segment fault with empty namespace when generating dart file (#5507)
c0282873f Rust: Fixed cargo clippy on non-generated code (#5485)
4b870aca9 [Javascript] Fix syntax error for signed enum (#5503)
d0e3870c0 [C#] Fix retrieving enumeration vectors as arrays (#5457)
fb25eb87f Doc typo fixes (#5505)
cb35d3a0e Use all of the available space in the buffer returned by ByteBufferFactory to allow the factory to keep a pool of larger than initialsize sized buffers. (#5500)
8e6cabb31 [FlexBuffers][Java] Implementation of FlexBuffers API (#5476)
bd31dd242 Clarified value reuse in FlexBuffers
65b67d213 Fixed test build invocation of arrays_test.fbs
1fbb71132 FlexBuffers: allow any values to be shared.
cd75a3658 Android: remove app_dummy() calls
ec6b0bf29 Fixed STLPort Android compile error
c11b5d744 [bugfix]flexbuffers isvector bugfix (#5488)
4525c91be Fix incorrect padding in arrays of structs (Issue #5484) (#5491)
b97b342f5 Fixed missing generated code.
c1058a903 C++ IDL generation adds superfluous semicolon in GenTablePost, causing (#5483)
303044934 [go]add Name() for ForceCodec interface (#5486)
a2485d4ec reflection: check for valid union enum value during object verification (#5475)
a20e71ac9 has_method support for primitive fields in java runtime. Changed: idl.h, FlatBufferBuilder.java , idl_gen_general.cpp, idl_parser.cpp, flatc.cpp (#5468)
Change-Id: I836f4b43e6818bb16425a87899e6234ac86242aa
git-subtree-dir: third_party/flatbuffers
git-subtree-split: d6a8dbd26ff08a8868e0d0c1b4b67d31b40e4a7f
diff --git a/src/idl_gen_java.cpp b/src/idl_gen_java.cpp
new file mode 100644
index 0000000..c51f7bc
--- /dev/null
+++ b/src/idl_gen_java.cpp
@@ -0,0 +1,1244 @@
+/*
+ * Copyright 2014 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// independent from idl_parser, since this code is not needed for most clients
+
+#include "flatbuffers/code_generators.h"
+#include "flatbuffers/flatbuffers.h"
+#include "flatbuffers/idl.h"
+#include "flatbuffers/util.h"
+
+#if defined(FLATBUFFERS_CPP98_STL)
+# include <cctype>
+#endif // defined(FLATBUFFERS_CPP98_STL)
+
+namespace flatbuffers {
+namespace java {
+
+static TypedFloatConstantGenerator JavaFloatGen("Double.", "Float.", "NaN",
+ "POSITIVE_INFINITY",
+ "NEGATIVE_INFINITY");
+
+static CommentConfig comment_config = {
+ "/**",
+ " *",
+ " */",
+};
+
+class JavaGenerator : public BaseGenerator {
+ public:
+ JavaGenerator(const Parser &parser, const std::string &path,
+ const std::string &file_name)
+ : BaseGenerator(parser, path, file_name, "", ".", "java"),
+ cur_name_space_(nullptr) {}
+
+ JavaGenerator &operator=(const JavaGenerator &);
+ bool generate() {
+ std::string one_file_code;
+ cur_name_space_ = parser_.current_namespace_;
+
+ for (auto it = parser_.enums_.vec.begin(); it != parser_.enums_.vec.end();
+ ++it) {
+ std::string enumcode;
+ auto &enum_def = **it;
+ if (!parser_.opts.one_file) cur_name_space_ = enum_def.defined_namespace;
+ GenEnum(enum_def, &enumcode);
+ if (parser_.opts.one_file) {
+ one_file_code += enumcode;
+ } else {
+ if (!SaveType(enum_def.name, *enum_def.defined_namespace, enumcode,
+ /* needs_includes= */ false))
+ return false;
+ }
+ }
+
+ for (auto it = parser_.structs_.vec.begin();
+ it != parser_.structs_.vec.end(); ++it) {
+ std::string declcode;
+ auto &struct_def = **it;
+ if (!parser_.opts.one_file)
+ cur_name_space_ = struct_def.defined_namespace;
+ GenStruct(struct_def, &declcode);
+ if (parser_.opts.one_file) {
+ one_file_code += declcode;
+ } else {
+ if (!SaveType(struct_def.name, *struct_def.defined_namespace, declcode,
+ /* needs_includes= */ true))
+ return false;
+ }
+ }
+
+ if (parser_.opts.one_file) {
+ return SaveType(file_name_, *parser_.current_namespace_, one_file_code,
+ /* needs_includes= */ true);
+ }
+ return true;
+ }
+
+ // Save out the generated code for a single class while adding
+ // declaration boilerplate.
+ bool SaveType(const std::string &defname, const Namespace &ns,
+ const std::string &classcode, bool needs_includes) const {
+ if (!classcode.length()) return true;
+
+ std::string code;
+ code = "// " + std::string(FlatBuffersGeneratedWarning()) + "\n\n";
+
+ std::string namespace_name = FullNamespace(".", ns);
+ if (!namespace_name.empty()) {
+ code += "package " + namespace_name + ";";
+ code += "\n\n";
+ }
+ if (needs_includes) {
+ code +=
+ "import java.nio.*;\nimport java.lang.*;\nimport "
+ "java.util.*;\nimport com.google.flatbuffers.*;\n";
+ if (parser_.opts.gen_nullable) {
+ code += "\nimport javax.annotation.Nullable;\n";
+ }
+ if (parser_.opts.java_checkerframework) {
+ code += "\nimport org.checkerframework.dataflow.qual.Pure;\n";
+ }
+ code += "\n";
+ }
+
+ code += classcode;
+ if (!namespace_name.empty()) code += "";
+ auto filename = NamespaceDir(ns) + defname + ".java";
+ return SaveFile(filename.c_str(), code, false);
+ }
+
+ const Namespace *CurrentNameSpace() const { return cur_name_space_; }
+
+ std::string GenNullableAnnotation(const Type &t) const {
+ return parser_.opts.gen_nullable &&
+ !IsScalar(DestinationType(t, true).base_type) &&
+ t.base_type != BASE_TYPE_VECTOR
+ ? " @Nullable "
+ : "";
+ }
+
+ std::string GenPureAnnotation(const Type &t) const {
+ return parser_.opts.java_checkerframework &&
+ !IsScalar(DestinationType(t, true).base_type)
+ ? " @Pure "
+ : "";
+ }
+
+ std::string GenTypeBasic(const Type &type) const {
+ // clang-format off
+ static const char * const java_typename[] = {
+ #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, ...) \
+ #JTYPE,
+ FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
+ #undef FLATBUFFERS_TD
+ };
+ // clang-format on
+ return java_typename[type.base_type];
+ }
+
+ std::string GenTypePointer(const Type &type) const {
+ switch (type.base_type) {
+ case BASE_TYPE_STRING: return "String";
+ case BASE_TYPE_VECTOR: return GenTypeGet(type.VectorType());
+ case BASE_TYPE_STRUCT: return WrapInNameSpace(*type.struct_def);
+ case BASE_TYPE_UNION: FLATBUFFERS_FALLTHROUGH(); // else fall thru
+ default: return "Table";
+ }
+ }
+
+ std::string GenTypeGet(const Type &type) const {
+ return IsScalar(type.base_type)
+ ? GenTypeBasic(type)
+ : (IsArray(type) ? GenTypeGet(type.VectorType())
+ : GenTypePointer(type));
+ }
+
+ // Find the destination type the user wants to receive the value in (e.g.
+ // one size higher signed types for unsigned serialized values in Java).
+ Type DestinationType(const Type &type, bool vectorelem) const {
+ switch (type.base_type) {
+ // We use int for both uchar/ushort, since that generally means less
+ // casting than using short for uchar.
+ case BASE_TYPE_UCHAR: return Type(BASE_TYPE_INT);
+ case BASE_TYPE_USHORT: return Type(BASE_TYPE_INT);
+ case BASE_TYPE_UINT: return Type(BASE_TYPE_LONG);
+ case BASE_TYPE_ARRAY:
+ case BASE_TYPE_VECTOR:
+ if (vectorelem) return DestinationType(type.VectorType(), vectorelem);
+ FLATBUFFERS_FALLTHROUGH(); // else fall thru
+ default: return type;
+ }
+ }
+
+ std::string GenOffsetType() const { return "int"; }
+
+ std::string GenOffsetConstruct(const std::string &variable_name) const {
+ return variable_name;
+ }
+
+ std::string GenVectorOffsetType() const { return "int"; }
+
+ // Generate destination type name
+ std::string GenTypeNameDest(const Type &type) const {
+ return GenTypeGet(DestinationType(type, true));
+ }
+
+ // Mask to turn serialized value into destination type value.
+ std::string DestinationMask(const Type &type, bool vectorelem) const {
+ switch (type.base_type) {
+ case BASE_TYPE_UCHAR: return " & 0xFF";
+ case BASE_TYPE_USHORT: return " & 0xFFFF";
+ case BASE_TYPE_UINT: return " & 0xFFFFFFFFL";
+ case BASE_TYPE_VECTOR:
+ if (vectorelem) return DestinationMask(type.VectorType(), vectorelem);
+ FLATBUFFERS_FALLTHROUGH(); // else fall thru
+ default: return "";
+ }
+ }
+
+ // Casts necessary to correctly read serialized data
+ std::string DestinationCast(const Type &type) const {
+ if (IsSeries(type)) {
+ return DestinationCast(type.VectorType());
+ } else {
+ // Cast necessary to correctly read serialized unsigned values.
+ if (type.base_type == BASE_TYPE_UINT) return "(long)";
+ }
+ return "";
+ }
+
+ // Cast statements for mutator method parameters.
+ // In Java, parameters representing unsigned numbers need to be cast down to
+ // their respective type. For example, a long holding an unsigned int value
+ // would be cast down to int before being put onto the buffer.
+ std::string SourceCast(const Type &type, bool castFromDest) const {
+ if (IsSeries(type)) {
+ return SourceCast(type.VectorType(), castFromDest);
+ } else {
+ if (castFromDest) {
+ if (type.base_type == BASE_TYPE_UINT)
+ return "(int)";
+ else if (type.base_type == BASE_TYPE_USHORT)
+ return "(short)";
+ else if (type.base_type == BASE_TYPE_UCHAR)
+ return "(byte)";
+ }
+ }
+ return "";
+ }
+
+ std::string SourceCast(const Type &type) const {
+ return SourceCast(type, true);
+ }
+
+ std::string SourceCastBasic(const Type &type, bool castFromDest) const {
+ return IsScalar(type.base_type) ? SourceCast(type, castFromDest) : "";
+ }
+
+ std::string SourceCastBasic(const Type &type) const {
+ return SourceCastBasic(type, true);
+ }
+
+ std::string GenEnumDefaultValue(const FieldDef &field) const {
+ auto &value = field.value;
+ FLATBUFFERS_ASSERT(value.type.enum_def);
+ auto &enum_def = *value.type.enum_def;
+ auto enum_val = enum_def.FindByValue(value.constant);
+ return enum_val ? (WrapInNameSpace(enum_def) + "." + enum_val->name)
+ : value.constant;
+ }
+
+ std::string GenDefaultValue(const FieldDef &field) const {
+ auto &value = field.value;
+ auto constant = field.IsScalarOptional() ? "0" : value.constant;
+ auto longSuffix = "L";
+ switch (value.type.base_type) {
+ case BASE_TYPE_BOOL: return constant == "0" ? "false" : "true";
+ case BASE_TYPE_ULONG: {
+ // Converts the ulong into its bits signed equivalent
+ uint64_t defaultValue = StringToUInt(constant.c_str());
+ return NumToString(static_cast<int64_t>(defaultValue)) + longSuffix;
+ }
+ case BASE_TYPE_UINT:
+ case BASE_TYPE_LONG: return constant + longSuffix;
+ default:
+ if (IsFloat(value.type.base_type)) {
+ if (field.IsScalarOptional()) {
+ return value.type.base_type == BASE_TYPE_DOUBLE ? "0.0" : "0f";
+ }
+ return JavaFloatGen.GenFloatConstant(field);
+ } else {
+ return constant;
+ }
+ }
+ }
+
+ std::string GenDefaultValueBasic(const FieldDef &field) const {
+ auto &value = field.value;
+ if (!IsScalar(value.type.base_type)) { return "0"; }
+ return GenDefaultValue(field);
+ }
+
+ void GenEnum(EnumDef &enum_def, std::string *code_ptr) const {
+ std::string &code = *code_ptr;
+ if (enum_def.generated) return;
+
+ // Generate enum definitions of the form:
+ // public static (final) int name = value;
+ // In Java, we use ints rather than the Enum feature, because we want them
+ // to map directly to how they're used in C/C++ and file formats.
+ // That, and Java Enums are expensive, and not universally liked.
+ GenComment(enum_def.doc_comment, code_ptr, &comment_config);
+
+ if (enum_def.attributes.Lookup("private")) {
+ // For Java, we leave the enum unmarked to indicate package-private
+ } else {
+ code += "public ";
+ }
+ code += "final class " + enum_def.name;
+ code += " {\n";
+ code += " private " + enum_def.name + "() { }\n";
+ for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) {
+ auto &ev = **it;
+ GenComment(ev.doc_comment, code_ptr, &comment_config, " ");
+ code += " public static final ";
+ code += GenTypeBasic(enum_def.underlying_type);
+ code += " ";
+ code += ev.name + " = ";
+ code += enum_def.ToString(ev);
+ code += ";\n";
+ }
+
+ // Generate a generate string table for enum values.
+ // Problem is, if values are very sparse that could generate really big
+ // tables. Ideally in that case we generate a map lookup instead, but for
+ // the moment we simply don't output a table at all.
+ auto range = enum_def.Distance();
+ // Average distance between values above which we consider a table
+ // "too sparse". Change at will.
+ static const uint64_t kMaxSparseness = 5;
+ if (range / static_cast<uint64_t>(enum_def.size()) < kMaxSparseness) {
+ code += "\n public static final String";
+ code += "[] names = { ";
+ auto val = enum_def.Vals().front();
+ for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end();
+ ++it) {
+ auto ev = *it;
+ for (auto k = enum_def.Distance(val, ev); k > 1; --k) code += "\"\", ";
+ val = ev;
+ code += "\"" + (*it)->name + "\", ";
+ }
+ code += "};\n\n";
+ code += " public static ";
+ code += "String";
+ code += " " + MakeCamel("name", false);
+ code += "(int e) { return names[e";
+ if (enum_def.MinValue()->IsNonZero())
+ code += " - " + enum_def.MinValue()->name;
+ code += "]; }\n";
+ }
+
+ // Close the class
+ code += "}\n\n";
+ }
+
+ // Returns the function name that is able to read a value of the given type.
+ std::string GenGetter(const Type &type) const {
+ switch (type.base_type) {
+ case BASE_TYPE_STRING: return "__string";
+ case BASE_TYPE_STRUCT: return "__struct";
+ case BASE_TYPE_UNION: return "__union";
+ case BASE_TYPE_VECTOR: return GenGetter(type.VectorType());
+ case BASE_TYPE_ARRAY: return GenGetter(type.VectorType());
+ default: {
+ std::string getter = "bb.get";
+ if (type.base_type == BASE_TYPE_BOOL) {
+ getter = "0!=" + getter;
+ } else if (GenTypeBasic(type) != "byte") {
+ getter += MakeCamel(GenTypeBasic(type));
+ }
+ return getter;
+ }
+ }
+ }
+
+ // Returns the function name that is able to read a value of the given type.
+ std::string GenGetterForLookupByKey(flatbuffers::FieldDef *key_field,
+ const std::string &data_buffer,
+ const char *num = nullptr) const {
+ auto type = key_field->value.type;
+ auto dest_mask = DestinationMask(type, true);
+ auto dest_cast = DestinationCast(type);
+ auto getter = data_buffer + ".get";
+ if (GenTypeBasic(type) != "byte") {
+ getter += MakeCamel(GenTypeBasic(type));
+ }
+ getter = dest_cast + getter + "(" + GenOffsetGetter(key_field, num) + ")" +
+ dest_mask;
+ return getter;
+ }
+
+ // Direct mutation is only allowed for scalar fields.
+ // Hence a setter method will only be generated for such fields.
+ std::string GenSetter(const Type &type) const {
+ if (IsScalar(type.base_type)) {
+ std::string setter = "bb.put";
+ if (GenTypeBasic(type) != "byte" && type.base_type != BASE_TYPE_BOOL) {
+ setter += MakeCamel(GenTypeBasic(type));
+ }
+ return setter;
+ } else {
+ return "";
+ }
+ }
+
+ // Returns the method name for use with add/put calls.
+ std::string GenMethod(const Type &type) const {
+ return IsScalar(type.base_type) ? MakeCamel(GenTypeBasic(type))
+ : (IsStruct(type) ? "Struct" : "Offset");
+ }
+
+ // Recursively generate arguments for a constructor, to deal with nested
+ // structs.
+ void GenStructArgs(const StructDef &struct_def, std::string *code_ptr,
+ const char *nameprefix, size_t array_count = 0) const {
+ std::string &code = *code_ptr;
+ for (auto it = struct_def.fields.vec.begin();
+ it != struct_def.fields.vec.end(); ++it) {
+ auto &field = **it;
+ const auto &field_type = field.value.type;
+ const auto array_field = IsArray(field_type);
+ const auto &type = array_field ? field_type.VectorType()
+ : DestinationType(field_type, false);
+ const auto array_cnt = array_field ? (array_count + 1) : array_count;
+ if (IsStruct(type)) {
+ // Generate arguments for a struct inside a struct. To ensure names
+ // don't clash, and to make it obvious these arguments are constructing
+ // a nested struct, prefix the name with the field name.
+ GenStructArgs(*field_type.struct_def, code_ptr,
+ (nameprefix + (field.name + "_")).c_str(), array_cnt);
+ } else {
+ code += ", ";
+ code += GenTypeBasic(type);
+ for (size_t i = 0; i < array_cnt; i++) code += "[]";
+ code += " ";
+ code += nameprefix;
+ code += MakeCamel(field.name, false);
+ }
+ }
+ }
+
+ // Recusively generate struct construction statements of the form:
+ // builder.putType(name);
+ // and insert manual padding.
+ void GenStructBody(const StructDef &struct_def, std::string *code_ptr,
+ const char *nameprefix, size_t index = 0,
+ bool in_array = false) const {
+ std::string &code = *code_ptr;
+ std::string indent((index + 1) * 2, ' ');
+ code += indent + " builder.prep(";
+ code += NumToString(struct_def.minalign) + ", ";
+ code += NumToString(struct_def.bytesize) + ");\n";
+ for (auto it = struct_def.fields.vec.rbegin();
+ it != struct_def.fields.vec.rend(); ++it) {
+ auto &field = **it;
+ const auto &field_type = field.value.type;
+ if (field.padding) {
+ code += indent + " builder.pad(";
+ code += NumToString(field.padding) + ");\n";
+ }
+ if (IsStruct(field_type)) {
+ GenStructBody(*field_type.struct_def, code_ptr,
+ (nameprefix + (field.name + "_")).c_str(), index,
+ in_array);
+ } else {
+ const auto &type =
+ IsArray(field_type) ? field_type.VectorType() : field_type;
+ const auto index_var = "_idx" + NumToString(index);
+ if (IsArray(field_type)) {
+ code += indent + " for (int " + index_var + " = ";
+ code += NumToString(field_type.fixed_length);
+ code += "; " + index_var + " > 0; " + index_var + "--) {\n";
+ in_array = true;
+ }
+ if (IsStruct(type)) {
+ GenStructBody(*field_type.struct_def, code_ptr,
+ (nameprefix + (field.name + "_")).c_str(), index + 1,
+ in_array);
+ } else {
+ code += IsArray(field_type) ? " " : "";
+ code += indent + " builder.put";
+ code += GenMethod(type) + "(";
+ code += SourceCast(type);
+ auto argname = nameprefix + MakeCamel(field.name, false);
+ code += argname;
+ size_t array_cnt = index + (IsArray(field_type) ? 1 : 0);
+ for (size_t i = 0; in_array && i < array_cnt; i++) {
+ code += "[_idx" + NumToString(i) + "-1]";
+ }
+ code += ");\n";
+ }
+ if (IsArray(field_type)) { code += indent + " }\n"; }
+ }
+ }
+ }
+
+ std::string GenByteBufferLength(const char *bb_name) const {
+ std::string bb_len = bb_name;
+ bb_len += ".capacity()";
+ return bb_len;
+ }
+
+ std::string GenOffsetGetter(flatbuffers::FieldDef *key_field,
+ const char *num = nullptr) const {
+ std::string key_offset = "";
+ key_offset += "__offset(" + NumToString(key_field->value.offset) + ", ";
+ if (num) {
+ key_offset += num;
+ key_offset += ", _bb)";
+ } else {
+ key_offset += GenByteBufferLength("bb");
+ key_offset += " - tableOffset, bb)";
+ }
+ return key_offset;
+ }
+
+ std::string GenLookupKeyGetter(flatbuffers::FieldDef *key_field) const {
+ std::string key_getter = " ";
+ key_getter += "int tableOffset = ";
+ key_getter += "__indirect(vectorLocation + 4 * (start + middle)";
+ key_getter += ", bb);\n ";
+ if (IsString(key_field->value.type)) {
+ key_getter += "int comp = ";
+ key_getter += "compareStrings(";
+ key_getter += GenOffsetGetter(key_field);
+ key_getter += ", byteKey, bb);\n";
+ } else {
+ auto get_val = GenGetterForLookupByKey(key_field, "bb");
+ key_getter += GenTypeNameDest(key_field->value.type) + " val = ";
+ key_getter += get_val + ";\n";
+ key_getter += " int comp = val > key ? 1 : val < key ? -1 : 0;\n";
+ }
+ return key_getter;
+ }
+
+ std::string GenKeyGetter(flatbuffers::FieldDef *key_field) const {
+ std::string key_getter = "";
+ auto data_buffer = "_bb";
+ if (IsString(key_field->value.type)) {
+ key_getter += " return ";
+ key_getter += "";
+ key_getter += "compareStrings(";
+ key_getter += GenOffsetGetter(key_field, "o1") + ", ";
+ key_getter += GenOffsetGetter(key_field, "o2") + ", " + data_buffer + ")";
+ key_getter += ";";
+ } else {
+ auto field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o1");
+ key_getter +=
+ "\n " + GenTypeNameDest(key_field->value.type) + " val_1 = ";
+ key_getter +=
+ field_getter + ";\n " + GenTypeNameDest(key_field->value.type);
+ key_getter += " val_2 = ";
+ field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o2");
+ key_getter += field_getter + ";\n";
+ key_getter += " return val_1 > val_2 ? 1 : val_1 < val_2 ? -1 : 0;\n ";
+ }
+ return key_getter;
+ }
+
+ void GenStruct(StructDef &struct_def, std::string *code_ptr) const {
+ if (struct_def.generated) return;
+ std::string &code = *code_ptr;
+
+ // Generate a struct accessor class, with methods of the form:
+ // public type name() { return bb.getType(i + offset); }
+ // or for tables of the form:
+ // public type name() {
+ // int o = __offset(offset); return o != 0 ? bb.getType(o + i) : default;
+ // }
+ GenComment(struct_def.doc_comment, code_ptr, &comment_config);
+
+ if (parser_.opts.gen_generated) {
+ code += "@javax.annotation.Generated(value=\"flatc\")\n";
+ }
+ code += "@SuppressWarnings(\"unused\")\n";
+ if (struct_def.attributes.Lookup("private")) {
+ // For Java, we leave the struct unmarked to indicate package-private
+ } else {
+ code += "public ";
+ }
+ code += "final class " + struct_def.name;
+ code += " extends ";
+ code += struct_def.fixed ? "Struct" : "Table";
+ code += " {\n";
+
+ if (!struct_def.fixed) {
+ // Generate verson check method.
+ // Force compile time error if not using the same version runtime.
+ code += " public static void ValidateVersion() {";
+ code += " Constants.";
+ code += "FLATBUFFERS_1_12_0(); ";
+ code += "}\n";
+
+ // Generate a special accessor for the table that when used as the root
+ // of a FlatBuffer
+ std::string method_name = "getRootAs" + struct_def.name;
+ std::string method_signature =
+ " public static " + struct_def.name + " " + method_name;
+
+ // create convenience method that doesn't require an existing object
+ code += method_signature + "(ByteBuffer _bb) ";
+ code += "{ return " + method_name + "(_bb, new " + struct_def.name +
+ "()); }\n";
+
+ // create method that allows object reuse
+ code +=
+ method_signature + "(ByteBuffer _bb, " + struct_def.name + " obj) { ";
+ code += "_bb.order(ByteOrder.LITTLE_ENDIAN); ";
+ code += "return (obj.__assign(_bb.getInt(_bb.";
+ code += "position()";
+ code += ") + _bb.";
+ code += "position()";
+ code += ", _bb)); }\n";
+ if (parser_.root_struct_def_ == &struct_def) {
+ if (parser_.file_identifier_.length()) {
+ // Check if a buffer has the identifier.
+ code += " public static ";
+ code += "boolean " + struct_def.name;
+ code += "BufferHasIdentifier(ByteBuffer _bb) { return ";
+ code += "__has_identifier(_bb, \"";
+ code += parser_.file_identifier_;
+ code += "\"); }\n";
+ }
+ }
+ }
+ // Generate the __init method that sets the field in a pre-existing
+ // accessor object. This is to allow object reuse.
+ code += " public void __init(int _i, ByteBuffer _bb) ";
+ code += "{ ";
+ code += "__reset(_i, _bb); ";
+ code += "}\n";
+ code +=
+ " public " + struct_def.name + " __assign(int _i, ByteBuffer _bb) ";
+ code += "{ __init(_i, _bb); return this; }\n\n";
+ for (auto it = struct_def.fields.vec.begin();
+ it != struct_def.fields.vec.end(); ++it) {
+ auto &field = **it;
+ if (field.deprecated) continue;
+ GenComment(field.doc_comment, code_ptr, &comment_config, " ");
+ std::string type_name = GenTypeGet(field.value.type);
+ std::string type_name_dest = GenTypeNameDest(field.value.type);
+ std::string conditional_cast = "";
+ std::string optional = "";
+ std::string dest_mask = DestinationMask(field.value.type, true);
+ std::string dest_cast = DestinationCast(field.value.type);
+ std::string src_cast = SourceCast(field.value.type);
+ std::string method_start =
+ " public " +
+ (field.required ? "" : GenNullableAnnotation(field.value.type)) +
+ GenPureAnnotation(field.value.type) + type_name_dest + optional +
+ " " + MakeCamel(field.name, false);
+ std::string obj = "obj";
+
+ // Most field accessors need to retrieve and test the field offset first,
+ // this is the prefix code for that:
+ auto offset_prefix =
+ IsArray(field.value.type)
+ ? " { return "
+ : (" { int o = __offset(" + NumToString(field.value.offset) +
+ "); return o != 0 ? ");
+ // Generate the accessors that don't do object reuse.
+ if (field.value.type.base_type == BASE_TYPE_STRUCT) {
+ // Calls the accessor that takes an accessor object with a new object.
+ code += method_start + "() { return ";
+ code += MakeCamel(field.name, false);
+ code += "(new ";
+ code += type_name + "()); }\n";
+ } else if (IsVector(field.value.type) &&
+ field.value.type.element == BASE_TYPE_STRUCT) {
+ // Accessors for vectors of structs also take accessor objects, this
+ // generates a variant without that argument.
+ code += method_start + "(int j) { return ";
+ code += MakeCamel(field.name, false);
+ code += "(new " + type_name + "(), j); }\n";
+ }
+
+ if (field.IsScalarOptional()) { code += GenOptionalScalarCheck(field); }
+ std::string getter = dest_cast + GenGetter(field.value.type);
+ code += method_start;
+ std::string default_cast = "";
+ std::string member_suffix = "; ";
+ if (IsScalar(field.value.type.base_type)) {
+ code += "()";
+ member_suffix += "";
+ if (struct_def.fixed) {
+ code += " { return " + getter;
+ code += "(bb_pos + ";
+ code += NumToString(field.value.offset) + ")";
+ code += dest_mask;
+ } else {
+ code += offset_prefix + getter;
+ code += "(o + bb_pos)" + dest_mask;
+ code += " : " + default_cast;
+ code += GenDefaultValue(field);
+ }
+ } else {
+ switch (field.value.type.base_type) {
+ case BASE_TYPE_STRUCT:
+ code += "(" + type_name + " obj)";
+ if (struct_def.fixed) {
+ code += " { return " + obj + ".__assign(";
+ code += "bb_pos + " + NumToString(field.value.offset) + ", ";
+ code += "bb)";
+ } else {
+ code += offset_prefix + conditional_cast;
+ code += obj + ".__assign(";
+ code += field.value.type.struct_def->fixed
+ ? "o + bb_pos"
+ : "__indirect(o + bb_pos)";
+ code += ", bb) : null";
+ }
+ break;
+ case BASE_TYPE_STRING:
+ code += "()";
+ member_suffix += "";
+ code += offset_prefix + getter + "(o + ";
+ code += "bb_pos) : null";
+ break;
+ case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru
+ case BASE_TYPE_VECTOR: {
+ auto vectortype = field.value.type.VectorType();
+ code += "(";
+ if (vectortype.base_type == BASE_TYPE_STRUCT) {
+ code += type_name + " obj, ";
+ getter = obj + ".__assign";
+ } else if (vectortype.base_type == BASE_TYPE_UNION) {
+ code += type_name + " obj, ";
+ }
+ code += "int j)";
+ const auto body = offset_prefix + conditional_cast + getter + "(";
+ if (vectortype.base_type == BASE_TYPE_UNION) {
+ code += body + "obj, ";
+ } else {
+ code += body;
+ }
+ std::string index;
+ if (IsArray(field.value.type)) {
+ index += "bb_pos + " + NumToString(field.value.offset) + " + ";
+ } else {
+ index += "__vector(o) + ";
+ }
+ index += "j * " + NumToString(InlineSize(vectortype));
+ if (vectortype.base_type == BASE_TYPE_STRUCT) {
+ code += vectortype.struct_def->fixed
+ ? index
+ : "__indirect(" + index + ")";
+ code += ", bb";
+ } else {
+ code += index;
+ }
+ code += ")" + dest_mask;
+ if (!IsArray(field.value.type)) {
+ code += " : ";
+ code +=
+ field.value.type.element == BASE_TYPE_BOOL
+ ? "false"
+ : (IsScalar(field.value.type.element) ? default_cast + "0"
+ : "null");
+ }
+
+ break;
+ }
+ case BASE_TYPE_UNION:
+ code += "(" + type_name + " obj)" + offset_prefix + getter;
+ code += "(obj, o + bb_pos) : null";
+ break;
+ default: FLATBUFFERS_ASSERT(0);
+ }
+ }
+ code += member_suffix;
+ code += "}\n";
+ if (IsVector(field.value.type)) {
+ code += " public int " + MakeCamel(field.name, false);
+ code += "Length";
+ code += "()";
+ code += offset_prefix;
+ code += "__vector_len(o) : 0; ";
+ code += "";
+ code += "}\n";
+ // See if we should generate a by-key accessor.
+ if (field.value.type.element == BASE_TYPE_STRUCT &&
+ !field.value.type.struct_def->fixed) {
+ auto &sd = *field.value.type.struct_def;
+ auto &fields = sd.fields.vec;
+ for (auto kit = fields.begin(); kit != fields.end(); ++kit) {
+ auto &key_field = **kit;
+ if (key_field.key) {
+ auto qualified_name = WrapInNameSpace(sd);
+ code += " public " + qualified_name + " ";
+ code += MakeCamel(field.name, false) + "ByKey(";
+ code += GenTypeNameDest(key_field.value.type) + " key)";
+ code += offset_prefix;
+ code += qualified_name + ".__lookup_by_key(";
+ code += "null, ";
+ code += "__vector(o), key, ";
+ code += "bb) : null; ";
+ code += "}\n";
+ code += " public " + qualified_name + " ";
+ code += MakeCamel(field.name, false) + "ByKey(";
+ code += qualified_name + " obj, ";
+ code += GenTypeNameDest(key_field.value.type) + " key)";
+ code += offset_prefix;
+ code += qualified_name + ".__lookup_by_key(obj, ";
+ code += "__vector(o), key, ";
+ code += "bb) : null; ";
+ code += "}\n";
+ break;
+ }
+ }
+ }
+ }
+ // Generate the accessors for vector of structs with vector access object
+ if (IsVector(field.value.type)) {
+ std::string vector_type_name;
+ const auto &element_base_type = field.value.type.VectorType().base_type;
+ if (IsScalar(element_base_type)) {
+ vector_type_name = MakeCamel(type_name, true) + "Vector";
+ } else if (element_base_type == BASE_TYPE_STRING) {
+ vector_type_name = "StringVector";
+ } else if (element_base_type == BASE_TYPE_UNION) {
+ vector_type_name = "UnionVector";
+ } else {
+ vector_type_name = type_name + ".Vector";
+ }
+ auto vector_method_start = GenNullableAnnotation(field.value.type) +
+ " public " + vector_type_name + optional +
+ " " + MakeCamel(field.name, false) +
+ "Vector";
+ code += vector_method_start + "() { return ";
+ code += MakeCamel(field.name, false) + "Vector";
+ code += "(new " + vector_type_name + "()); }\n";
+ code += vector_method_start + "(" + vector_type_name + " obj)";
+ code += offset_prefix + conditional_cast + obj + ".__assign(";
+ code += "__vector(o), ";
+ if (!IsScalar(element_base_type)) {
+ auto vectortype = field.value.type.VectorType();
+ code += NumToString(InlineSize(vectortype)) + ", ";
+ }
+ code += "bb) : null" + member_suffix + "}\n";
+ }
+ // Generate a ByteBuffer accessor for strings & vectors of scalars.
+ if ((IsVector(field.value.type) &&
+ IsScalar(field.value.type.VectorType().base_type)) ||
+ IsString(field.value.type)) {
+ code += " public ByteBuffer ";
+ code += MakeCamel(field.name, false);
+ code += "AsByteBuffer() { return ";
+ code += "__vector_as_bytebuffer(";
+ code += NumToString(field.value.offset) + ", ";
+ code += NumToString(IsString(field.value.type)
+ ? 1
+ : InlineSize(field.value.type.VectorType()));
+ code += "); }\n";
+ code += " public ByteBuffer ";
+ code += MakeCamel(field.name, false);
+ code += "InByteBuffer(ByteBuffer _bb) { return ";
+ code += "__vector_in_bytebuffer(_bb, ";
+ code += NumToString(field.value.offset) + ", ";
+ code += NumToString(IsString(field.value.type)
+ ? 1
+ : InlineSize(field.value.type.VectorType()));
+ code += "); }\n";
+ }
+ // generate object accessors if is nested_flatbuffer
+ if (field.nested_flatbuffer) {
+ auto nested_type_name = WrapInNameSpace(*field.nested_flatbuffer);
+ auto nested_method_name =
+ MakeCamel(field.name, false) + "As" + field.nested_flatbuffer->name;
+ auto get_nested_method_name = nested_method_name;
+ code += " public " + nested_type_name + " ";
+ code += nested_method_name + "() { return ";
+ code +=
+ get_nested_method_name + "(new " + nested_type_name + "()); }\n";
+ code += " public " + nested_type_name + " ";
+ code += get_nested_method_name + "(";
+ code += nested_type_name + " obj";
+ code += ") { int o = __offset(";
+ code += NumToString(field.value.offset) + "); ";
+ code += "return o != 0 ? " + conditional_cast + obj + ".__assign(";
+ code += "";
+ code += "__indirect(__vector(o)), ";
+ code += "bb) : null; }\n";
+ }
+ // Generate mutators for scalar fields or vectors of scalars.
+ if (parser_.opts.mutable_buffer) {
+ auto is_series = (IsSeries(field.value.type));
+ const auto &underlying_type =
+ is_series ? field.value.type.VectorType() : field.value.type;
+ // Boolean parameters have to be explicitly converted to byte
+ // representation.
+ auto setter_parameter = underlying_type.base_type == BASE_TYPE_BOOL
+ ? "(byte)(" + field.name + " ? 1 : 0)"
+ : field.name;
+ auto mutator_prefix = MakeCamel("mutate", false);
+ // A vector mutator also needs the index of the vector element it should
+ // mutate.
+ auto mutator_params = (is_series ? "(int j, " : "(") +
+ GenTypeNameDest(underlying_type) + " " +
+ field.name + ") { ";
+ auto setter_index =
+ is_series
+ ? (IsArray(field.value.type)
+ ? "bb_pos + " + NumToString(field.value.offset)
+ : "__vector(o)") +
+ +" + j * " + NumToString(InlineSize(underlying_type))
+ : (struct_def.fixed
+ ? "bb_pos + " + NumToString(field.value.offset)
+ : "o + bb_pos");
+ if (IsScalar(underlying_type.base_type) && !IsUnion(field.value.type)) {
+ code += " public ";
+ code += struct_def.fixed ? "void " : "boolean ";
+ code += mutator_prefix + MakeCamel(field.name, true);
+ code += mutator_params;
+ if (struct_def.fixed) {
+ code += GenSetter(underlying_type) + "(" + setter_index + ", ";
+ code += src_cast + setter_parameter + "); }\n";
+ } else {
+ code += "int o = __offset(";
+ code += NumToString(field.value.offset) + ");";
+ code += " if (o != 0) { " + GenSetter(underlying_type);
+ code += "(" + setter_index + ", " + src_cast + setter_parameter +
+ "); return true; } else { return false; } }\n";
+ }
+ }
+ }
+ if (parser_.opts.java_primitive_has_method &&
+ IsScalar(field.value.type.base_type) && !struct_def.fixed) {
+ auto vt_offset_constant = " public static final int VT_" +
+ MakeScreamingCamel(field.name) + " = " +
+ NumToString(field.value.offset) + ";";
+
+ code += vt_offset_constant;
+ code += "\n";
+ }
+ }
+ code += "\n";
+ flatbuffers::FieldDef *key_field = nullptr;
+ if (struct_def.fixed) {
+ // create a struct constructor function
+ code += " public static " + GenOffsetType() + " ";
+ code += "create";
+ code += struct_def.name + "(FlatBufferBuilder builder";
+ GenStructArgs(struct_def, code_ptr, "");
+ code += ") {\n";
+ GenStructBody(struct_def, code_ptr, "");
+ code += " return ";
+ code += GenOffsetConstruct("builder." + std::string("offset()"));
+ code += ";\n }\n";
+ } else {
+ // Generate a method that creates a table in one go. This is only possible
+ // when the table has no struct fields, since those have to be created
+ // inline, and there's no way to do so in Java.
+ bool has_no_struct_fields = true;
+ int num_fields = 0;
+ for (auto it = struct_def.fields.vec.begin();
+ it != struct_def.fields.vec.end(); ++it) {
+ auto &field = **it;
+ if (field.deprecated) continue;
+ if (IsStruct(field.value.type)) {
+ has_no_struct_fields = false;
+ } else {
+ num_fields++;
+ }
+ }
+ // JVM specifications restrict default constructor params to be < 255.
+ // Longs and doubles take up 2 units, so we set the limit to be < 127.
+ if (has_no_struct_fields && num_fields && num_fields < 127) {
+ // Generate a table constructor of the form:
+ // public static int createName(FlatBufferBuilder builder, args...)
+ code += " public static " + GenOffsetType() + " ";
+ code += "create" + struct_def.name;
+ code += "(FlatBufferBuilder builder";
+ for (auto it = struct_def.fields.vec.begin();
+ it != struct_def.fields.vec.end(); ++it) {
+ auto &field = **it;
+ if (field.deprecated) continue;
+ code += ",\n ";
+ code += GenTypeBasic(DestinationType(field.value.type, false));
+ code += " ";
+ code += field.name;
+ if (!IsScalar(field.value.type.base_type)) code += "Offset";
+ }
+ code += ") {\n builder.";
+ code += "startTable(";
+ code += NumToString(struct_def.fields.vec.size()) + ");\n";
+ for (size_t size = struct_def.sortbysize ? sizeof(largest_scalar_t) : 1;
+ size; size /= 2) {
+ for (auto it = struct_def.fields.vec.rbegin();
+ it != struct_def.fields.vec.rend(); ++it) {
+ auto &field = **it;
+ if (!field.deprecated &&
+ (!struct_def.sortbysize ||
+ size == SizeOf(field.value.type.base_type))) {
+ code += " " + struct_def.name + ".";
+ code += "add";
+ code += MakeCamel(field.name) + "(builder, " + field.name;
+ if (!IsScalar(field.value.type.base_type)) code += "Offset";
+ code += ");\n";
+ }
+ }
+ }
+ code += " return " + struct_def.name + ".";
+ code += "end" + struct_def.name;
+ code += "(builder);\n }\n\n";
+ }
+ // Generate a set of static methods that allow table construction,
+ // of the form:
+ // public static void addName(FlatBufferBuilder builder, short name)
+ // { builder.addShort(id, name, default); }
+ // Unlike the Create function, these always work.
+ code += " public static void start";
+ code += struct_def.name;
+ code += "(FlatBufferBuilder builder) { builder.";
+ code += "startTable(";
+ code += NumToString(struct_def.fields.vec.size()) + "); }\n";
+ for (auto it = struct_def.fields.vec.begin();
+ it != struct_def.fields.vec.end(); ++it) {
+ auto &field = **it;
+ if (field.deprecated) continue;
+ if (field.key) key_field = &field;
+ code += " public static void add";
+ code += MakeCamel(field.name);
+ code += "(FlatBufferBuilder builder, ";
+ code += GenTypeBasic(DestinationType(field.value.type, false));
+ auto argname = MakeCamel(field.name, false);
+ if (!IsScalar(field.value.type.base_type)) argname += "Offset";
+ code += " " + argname + ") { builder.add";
+ code += GenMethod(field.value.type) + "(";
+ code += NumToString(it - struct_def.fields.vec.begin()) + ", ";
+ code += SourceCastBasic(field.value.type);
+ code += argname;
+ code += ", ";
+ code += SourceCastBasic(field.value.type);
+ code += GenDefaultValue(field);
+ code += "); }\n";
+ if (IsVector(field.value.type)) {
+ auto vector_type = field.value.type.VectorType();
+ auto alignment = InlineAlignment(vector_type);
+ auto elem_size = InlineSize(vector_type);
+ if (!IsStruct(vector_type)) {
+ // generate a method to create a vector from a java array.
+ if ((vector_type.base_type == BASE_TYPE_CHAR ||
+ vector_type.base_type == BASE_TYPE_UCHAR)) {
+ // Handle byte[] and ByteBuffers separately for Java
+ code += " public static " + GenVectorOffsetType() + " ";
+ code += "create";
+ code += MakeCamel(field.name);
+ code += "Vector(FlatBufferBuilder builder, byte[] data) ";
+ code += "{ return builder.createByteVector(data); }\n";
+
+ code += " public static " + GenVectorOffsetType() + " ";
+ code += "create";
+ code += MakeCamel(field.name);
+ code += "Vector(FlatBufferBuilder builder, ByteBuffer data) ";
+ code += "{ return builder.createByteVector(data); }\n";
+ } else {
+ code += " public static " + GenVectorOffsetType() + " ";
+ code += "create";
+ code += MakeCamel(field.name);
+ code += "Vector(FlatBufferBuilder builder, ";
+ code += GenTypeBasic(vector_type) + "[] data) ";
+ code += "{ builder.startVector(";
+ code += NumToString(elem_size);
+ code += ", data.length, ";
+ code += NumToString(alignment);
+ code += "); for (int i = data.";
+ code += "length - 1; i >= 0; i--) builder.";
+ code += "add";
+ code += GenMethod(vector_type);
+ code += "(";
+ code += SourceCastBasic(vector_type, false);
+ code += "data[i]";
+ code += "); return ";
+ code += "builder.endVector(); }\n";
+ }
+ }
+ // Generate a method to start a vector, data to be added manually
+ // after.
+ code += " public static void start";
+ code += MakeCamel(field.name);
+ code += "Vector(FlatBufferBuilder builder, int numElems) ";
+ code += "{ builder.startVector(";
+ code += NumToString(elem_size);
+ code += ", numElems, " + NumToString(alignment);
+ code += "); }\n";
+ }
+ }
+ code += " public static " + GenOffsetType() + " ";
+ code += "end" + struct_def.name;
+ code += "(FlatBufferBuilder builder) {\n int o = builder.";
+ code += "endTable();\n";
+ for (auto it = struct_def.fields.vec.begin();
+ it != struct_def.fields.vec.end(); ++it) {
+ auto &field = **it;
+ if (!field.deprecated && field.required) {
+ code += " builder.required(o, ";
+ code += NumToString(field.value.offset);
+ code += "); // " + field.name + "\n";
+ }
+ }
+ code += " return " + GenOffsetConstruct("o") + ";\n }\n";
+ if (parser_.root_struct_def_ == &struct_def) {
+ std::string size_prefix[] = { "", "SizePrefixed" };
+ for (int i = 0; i < 2; ++i) {
+ code += " public static void ";
+ code += "finish" + size_prefix[i] + struct_def.name;
+ code += "Buffer(FlatBufferBuilder builder, " + GenOffsetType();
+ code += " offset) {";
+ code += " builder.finish" + size_prefix[i] + "(offset";
+
+ if (parser_.file_identifier_.length())
+ code += ", \"" + parser_.file_identifier_ + "\"";
+ code += "); }\n";
+ }
+ }
+ }
+ // Only generate key compare function for table,
+ // because `key_field` is not set for struct
+ if (struct_def.has_key && !struct_def.fixed) {
+ FLATBUFFERS_ASSERT(key_field);
+ code += "\n @Override\n protected int keysCompare(";
+ code += "Integer o1, Integer o2, ByteBuffer _bb) {";
+ code += GenKeyGetter(key_field);
+ code += " }\n";
+
+ code += "\n public static " + struct_def.name;
+ code += " __lookup_by_key(";
+ code += struct_def.name + " obj, ";
+ code += "int vectorLocation, ";
+ code += GenTypeNameDest(key_field->value.type);
+ code += " key, ByteBuffer bb) {\n";
+ if (IsString(key_field->value.type)) {
+ code += " byte[] byteKey = ";
+ code += "key.getBytes(java.nio.charset.StandardCharsets.UTF_8);\n";
+ }
+ code += " int span = ";
+ code += "bb.getInt(vectorLocation - 4);\n";
+ code += " int start = 0;\n";
+ code += " while (span != 0) {\n";
+ code += " int middle = span / 2;\n";
+ code += GenLookupKeyGetter(key_field);
+ code += " if (comp > 0) {\n";
+ code += " span = middle;\n";
+ code += " } else if (comp < 0) {\n";
+ code += " middle++;\n";
+ code += " start += middle;\n";
+ code += " span -= middle;\n";
+ code += " } else {\n";
+ code += " return ";
+ code += "(obj == null ? new " + struct_def.name + "() : obj)";
+ code += ".__assign(tableOffset, bb);\n";
+ code += " }\n }\n";
+ code += " return null;\n";
+ code += " }\n";
+ }
+ GenVectorAccessObject(struct_def, code_ptr);
+ code += "}";
+ code += "\n\n";
+ }
+
+ std::string GenOptionalScalarCheck(FieldDef &field) const {
+ if (!field.IsScalarOptional()) return "";
+ return " public boolean has" + MakeCamel(field.name, true) +
+ "() { return 0 != __offset(" + NumToString(field.value.offset) +
+ "); }\n";
+ }
+
+ void GenVectorAccessObject(StructDef &struct_def,
+ std::string *code_ptr) const {
+ auto &code = *code_ptr;
+ // Generate a vector of structs accessor class.
+ code += "\n";
+ code += " ";
+ if (!struct_def.attributes.Lookup("private")) code += "public ";
+ code += "static ";
+ code += "final ";
+ code += "class Vector extends ";
+ code += "BaseVector {\n";
+
+ // Generate the __assign method that sets the field in a pre-existing
+ // accessor object. This is to allow object reuse.
+ std::string method_indent = " ";
+ code += method_indent + "public Vector ";
+ code += "__assign(int _vector, int _element_size, ByteBuffer _bb) { ";
+ code += "__reset(_vector, _element_size, _bb); return this; }\n\n";
+
+ auto type_name = struct_def.name;
+ auto method_start = method_indent + "public " + type_name + " get";
+ // Generate the accessors that don't do object reuse.
+ code += method_start + "(int j) { return get";
+ code += "(new " + type_name + "(), j); }\n";
+ code += method_start + "(" + type_name + " obj, int j) { ";
+ code += " return obj.__assign(";
+ std::string index = "__element(j)";
+ code += struct_def.fixed ? index : "__indirect(" + index + ", bb)";
+ code += ", bb); }\n";
+ // See if we should generate a by-key accessor.
+ if (!struct_def.fixed) {
+ auto &fields = struct_def.fields.vec;
+ for (auto kit = fields.begin(); kit != fields.end(); ++kit) {
+ auto &key_field = **kit;
+ if (key_field.key) {
+ auto nullable_annotation =
+ parser_.opts.gen_nullable ? "@Nullable " : "";
+ code += method_indent + nullable_annotation;
+ code += "public " + type_name + " ";
+ code += "getByKey(";
+ code += GenTypeNameDest(key_field.value.type) + " key) { ";
+ code += " return __lookup_by_key(null, ";
+ code += "__vector(), key, ";
+ code += "bb); ";
+ code += "}\n";
+ code += method_indent + nullable_annotation;
+ code += "public " + type_name + " ";
+ code += "getByKey(";
+ code += type_name + " obj, ";
+ code += GenTypeNameDest(key_field.value.type) + " key) { ";
+ code += " return __lookup_by_key(obj, ";
+ code += "__vector(), key, ";
+ code += "bb); ";
+ code += "}\n";
+ break;
+ }
+ }
+ }
+ code += " }\n";
+ }
+
+ // This tracks the current namespace used to determine if a type need to be
+ // prefixed by its namespace
+ const Namespace *cur_name_space_;
+};
+} // namespace java
+
+bool GenerateJava(const Parser &parser, const std::string &path,
+ const std::string &file_name) {
+ java::JavaGenerator generator(parser, path, file_name);
+ return generator.generate();
+}
+
+} // namespace flatbuffers