Refactored the Java and C# code generators into one.

Also made the C# implementation support unsigned types, and
made it more like the Java version.

Bug: 17359988
Change-Id: If5305c08cd5c97f35426639516ce05e53bbec36c
Tested: on Linux and Windows.

CMakeLists.txt

@@ -12,8 +12,7 @@ set(FlatBuffers_Compiler_SRCS
   include/flatbuffers/util.h
   src/idl_parser.cpp
   src/idl_gen_cpp.cpp
-  src/idl_gen_java.cpp
-  src/idl_gen_csharp.cpp
+  src/idl_gen_general.cpp
   src/idl_gen_go.cpp
   src/idl_gen_text.cpp
   src/flatc.cpp

build/VS2010/flatc.vcxproj

@@ -266,13 +266,12 @@
     <ClInclude Include="..\..\include\flatbuffers\flatbuffers.h" />
     <ClInclude Include="..\..\include\flatbuffers\idl.h" />
     <ClInclude Include="..\..\include\flatbuffers\util.h" />
-    <ClCompile Include="..\..\src\idl_gen_csharp.cpp" />
+    <ClCompile Include="..\..\src\idl_gen_general.cpp" />
     <ClCompile Include="..\..\src\idl_gen_go.cpp">
       <WarningLevel Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Level4</WarningLevel>
     </ClCompile>
     <ClCompile Include="..\..\src\idl_parser.cpp" />
     <ClCompile Include="..\..\src\idl_gen_cpp.cpp" />
-    <ClCompile Include="..\..\src\idl_gen_java.cpp" />
     <ClCompile Include="..\..\src\idl_gen_text.cpp" />
     <ClCompile Include="..\..\src\flatc.cpp" />
   </ItemGroup>

build/VS2010/flatc.vcxproj.user

@@ -11,7 +11,7 @@
     <LocalDebuggerCommandArguments>-j -c -n -g -b -t monster_test.fbs monsterdata_test.golden</LocalDebuggerCommandArguments>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <LocalDebuggerCommandArguments>-j -c -g -b -t monster_test.fbs monsterdata_test.golden</LocalDebuggerCommandArguments>
+    <LocalDebuggerCommandArguments>-j -c -g -n -b -t monster_test.fbs monsterdata_test.golden</LocalDebuggerCommandArguments>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LocalDebuggerWorkingDirectory>..\..\tests</LocalDebuggerWorkingDirectory>

include/flatbuffers/idl.h

@@ -32,31 +32,38 @@ namespace flatbuffers {
 // Additionally, Parser::ParseType assumes bool..string is a contiguous range
 // of type tokens.
 #define FLATBUFFERS_GEN_TYPES_SCALAR(TD) \
-  TD(NONE,   "",       uint8_t,  byte,   byte) \
-  TD(UTYPE,  "",       uint8_t,  byte,   byte) /* begin scalars, ints */ \
-  TD(BOOL,   "bool",   uint8_t,  byte,   byte) \
-  TD(CHAR,   "byte",   int8_t,   byte,   int8) \
-  TD(UCHAR,  "ubyte",  uint8_t,  byte,   byte) \
-  TD(SHORT,  "short",  int16_t,  short,  int16) \
-  TD(USHORT, "ushort", uint16_t, short,  uint16) \
-  TD(INT,    "int",    int32_t,  int,    int32) \
-  TD(UINT,   "uint",   uint32_t, int,    uint32) \
-  TD(LONG,   "long",   int64_t,  long,   int64) \
-  TD(ULONG,  "ulong",  uint64_t, long,   uint64) /* end ints */ \
-  TD(FLOAT,  "float",  float,    float,  float32) /* begin floats */ \
-  TD(DOUBLE, "double", double,   double, float64) /* end floats, scalars */
+  TD(NONE,   "",       uint8_t,  byte,   byte,    byte) \
+  TD(UTYPE,  "",       uint8_t,  byte,   byte,    byte) /* begin scalar/int */ \
+  TD(BOOL,   "bool",   uint8_t,  byte,   byte,    byte) \
+  TD(CHAR,   "byte",   int8_t,   byte,   int8,    sbyte) \
+  TD(UCHAR,  "ubyte",  uint8_t,  byte,   byte,    byte) \
+  TD(SHORT,  "short",  int16_t,  short,  int16,   short) \
+  TD(USHORT, "ushort", uint16_t, short,  uint16,  ushort) \
+  TD(INT,    "int",    int32_t,  int,    int32,   int) \
+  TD(UINT,   "uint",   uint32_t, int,    uint32,  uint) \
+  TD(LONG,   "long",   int64_t,  long,   int64,   long) \
+  TD(ULONG,  "ulong",  uint64_t, long,   uint64,  ulong)  /* end int */ \
+  TD(FLOAT,  "float",  float,    float,  float32, float)  /* begin float */ \
+  TD(DOUBLE, "double", double,   double, float64, double) /* end float/scalar */
 #define FLATBUFFERS_GEN_TYPES_POINTER(TD) \
-  TD(STRING, "string", Offset<void>, int, int) \
-  TD(VECTOR, "",       Offset<void>, int, int) \
-  TD(STRUCT, "",       Offset<void>, int, int) \
-  TD(UNION,  "",       Offset<void>, int, int)
-
+  TD(STRING, "string", Offset<void>, int, int, int) \
+  TD(VECTOR, "",       Offset<void>, int, int, int) \
+  TD(STRUCT, "",       Offset<void>, int, int, int) \
+  TD(UNION,  "",       Offset<void>, int, int, int)
+
+// The fields are:
+// - enum
+// - FlatBuffers schema type.
+// - C++ type.
+// - Java type.
+// - Go type.
+// - C# / .Net type.
 
 // using these macros, we can now write code dealing with types just once, e.g.
 
 /*
 switch (type) {
-  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
     case BASE_TYPE_ ## ENUM: \
       // do something specific to CTYPE here
     FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
@@ -73,12 +80,13 @@ switch (type) {
 __extension__  // Stop GCC complaining about trailing comma with -Wpendantic.
 #endif
 enum BaseType {
-  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) BASE_TYPE_ ## ENUM,
+  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
+      BASE_TYPE_ ## ENUM,
     FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
   #undef FLATBUFFERS_TD
 };
 
-#define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+#define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
     static_assert(sizeof(CTYPE) <= sizeof(largest_scalar_t), \
                   "define largest_scalar_t as " #CTYPE);
   FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
@@ -327,22 +335,11 @@ class Parser {
   std::map<std::string, bool> included_files_;
 };
 
-// Utility functions for generators:
-
-// Convert an underscore_based_indentifier in to camelCase.
-// Also uppercases the first character if first is true.
-inline std::string MakeCamel(const std::string &in, bool first = true) {
-  std::string s;
-  for (size_t i = 0; i < in.length(); i++) {
-    if (!i && first)
-      s += static_cast<char>(toupper(in[0]));
-    else if (in[i] == '_' && i + 1 < in.length())
-      s += static_cast<char>(toupper(in[++i]));
-    else
-      s += in[i];
-  }
-  return s;
-}
+// Utility functions for multiple generators:
+
+extern std::string MakeCamel(const std::string &in, bool first = true);
+extern void GenComment(const std::string &dc, std::string *code_ptr,
+                       const char *prefix = "");
 
 // Container of options that may apply to any of the source/text generators.
 struct GeneratorOptions {
@@ -351,8 +348,14 @@ struct GeneratorOptions {
   bool output_enum_identifiers;
   bool prefixed_enums;
 
+  // Possible options for the more general generator below.
+  enum Language { kJava, kCSharp, kMAX };
+
+  Language lang;
+
   GeneratorOptions() : strict_json(false), indent_step(2),
-                       output_enum_identifiers(true), prefixed_enums(true) {}
+                       output_enum_identifiers(true), prefixed_enums(true),
+                       lang(GeneratorOptions::kJava) {}
 };
 
 // Generate text (JSON) from a given FlatBuffer, and a given Parser
@@ -397,6 +400,12 @@ extern bool GenerateCSharp(const Parser &parser,
                            const std::string &file_name,
                            const GeneratorOptions &opts);
 
+// Generate Java/C#/.. files from the definitions in the Parser object.
+// See idl_gen_general.cpp.
+extern bool GenerateGeneral(const Parser &parser,
+                            const std::string &path,
+                            const std::string &file_name,
+                            const GeneratorOptions &opts);
 
 }  // namespace flatbuffers
 

net/FlatBuffers/ByteBuffer.cs

@@ -25,6 +25,7 @@ namespace FlatBuffers
     public class ByteBuffer
     {
         private readonly byte[] _buffer;
+        private int _pos;  // Must track start of the buffer.
 
         public int Length { get { return _buffer.Length; } }
 
@@ -33,8 +34,11 @@ namespace FlatBuffers
         public ByteBuffer(byte[] buffer)
         {
             _buffer = buffer;
+            _pos = 0;
         }
 
+        public int position() { return _pos; }
+
         protected void WriteLittleEndian(int offset, byte[] data)
         {
             if (!BitConverter.IsLittleEndian)
@@ -42,6 +46,7 @@ namespace FlatBuffers
                 data = data.Reverse().ToArray();
             }
             Buffer.BlockCopy(data, 0, _buffer, offset, data.Length);
+            _pos = offset;
         }
 
         protected byte[] ReadLittleEndian(int offset, int count)
@@ -62,10 +67,18 @@ namespace FlatBuffers
                 throw new ArgumentOutOfRangeException();
         }
 
+        public void PutSbyte(int offset, sbyte value)
+        {
+            AssertOffsetAndLength(offset, sizeof(sbyte));
+            _buffer[offset] = (byte)value;
+            _pos = offset;
+        }
+
         public void PutByte(int offset, byte value)
         {
             AssertOffsetAndLength(offset, sizeof(byte));
             _buffer[offset] = value;
+            _pos = offset;
         }
 
         public void PutShort(int offset, short value)
@@ -74,18 +87,36 @@ namespace FlatBuffers
             WriteLittleEndian(offset, BitConverter.GetBytes(value));
         }
 
+        public void PutUshort(int offset, ushort value)
+        {
+            AssertOffsetAndLength(offset, sizeof(ushort));
+            WriteLittleEndian(offset, BitConverter.GetBytes(value));
+        }
+
         public void PutInt(int offset, int value)
         {
             AssertOffsetAndLength(offset, sizeof(int));
             WriteLittleEndian(offset, BitConverter.GetBytes(value));
         }
 
+        public void PutUint(int offset, uint value)
+        {
+            AssertOffsetAndLength(offset, sizeof(uint));
+            WriteLittleEndian(offset, BitConverter.GetBytes(value));
+        }
+
         public void PutLong(int offset, long value)
         {
             AssertOffsetAndLength(offset, sizeof(long));
             WriteLittleEndian(offset, BitConverter.GetBytes(value));
         }
 
+        public void PutUlong(int offset, ulong value)
+        {
+            AssertOffsetAndLength(offset, sizeof(ulong));
+            WriteLittleEndian(offset, BitConverter.GetBytes(value));
+        }
+
         public void PutFloat(int offset, float value)
         {
             AssertOffsetAndLength(offset, sizeof(float));
@@ -98,6 +129,12 @@ namespace FlatBuffers
             WriteLittleEndian(offset, BitConverter.GetBytes(value));
         }
 
+        public sbyte GetSbyte(int index)
+        {
+            AssertOffsetAndLength(index, sizeof(sbyte));
+            return (sbyte)_buffer[index];
+        }
+
         public byte Get(int index)
         {
             AssertOffsetAndLength(index, sizeof(byte));
@@ -111,6 +148,13 @@ namespace FlatBuffers
             return value;
         }
 
+        public ushort GetUshort(int index)
+        {
+            var tmp = ReadLittleEndian(index, sizeof(ushort));
+            var value = BitConverter.ToUInt16(tmp, 0);
+            return value;
+        }
+
         public int GetInt(int index)
         {
             var tmp = ReadLittleEndian(index, sizeof(int));
@@ -118,6 +162,13 @@ namespace FlatBuffers
             return value;
         }
 
+        public uint GetUint(int index)
+        {
+            var tmp = ReadLittleEndian(index, sizeof(uint));
+            var value = BitConverter.ToUInt32(tmp, 0);
+            return value;
+        }
+
         public long GetLong(int index)
         {
             var tmp = ReadLittleEndian(index, sizeof(long));
@@ -125,6 +176,13 @@ namespace FlatBuffers
             return value;
         }
 
+        public ulong GetUlong(int index)
+        {
+            var tmp = ReadLittleEndian(index, sizeof(ulong));
+            var value = BitConverter.ToUInt64(tmp, 0);
+            return value;
+        }
+
         public float GetFloat(int index)
         {
             var tmp = ReadLittleEndian(index, sizeof(float));

net/FlatBuffers/FlatBufferBuilder.cs

@@ -50,7 +50,7 @@ namespace FlatBuffers
         }
 
 
-        public int Offset { get { return _bb.Length - _space; } }
+        public int Offset() { return _bb.Length - _space; }
 
         public void Pad(int size)
         {
@@ -105,6 +105,11 @@ namespace FlatBuffers
             Pad(alignSize);
         }
 
+        public void PutSbyte(sbyte x)
+        {
+          _bb.PutSbyte(_space -= sizeof(sbyte), x);
+        }
+
         public void PutByte(byte x)
         {
             _bb.PutByte(_space -= sizeof(byte), x);
@@ -115,16 +120,31 @@ namespace FlatBuffers
             _bb.PutShort(_space -= sizeof(short), x);
         }
 
-        public void PutInt32(int x)
+        public void PutUshort(ushort x)
+        {
+          _bb.PutUshort(_space -= sizeof(ushort), x);
+        }
+
+        public void PutInt(int x)
         {
             _bb.PutInt(_space -= sizeof(int), x);
         }
 
-        public void PutInt64(long x)
+        public void PutUint(uint x)
+        {
+          _bb.PutUint(_space -= sizeof(uint), x);
+        }
+
+        public void PutLong(long x)
         {
             _bb.PutLong(_space -= sizeof(long), x);
         }
 
+        public void PutUlong(ulong x)
+        {
+          _bb.PutUlong(_space -= sizeof(ulong), x);
+        }
+
         public void PutFloat(float x)
         {
             _bb.PutFloat(_space -= sizeof(float), x);
@@ -137,10 +157,14 @@ namespace FlatBuffers
 
         // Adds a scalar to the buffer, properly aligned, and the buffer grown
         // if needed.
+        public void AddSbyte(sbyte x) { Prep(sizeof(sbyte), 0); PutSbyte(x); }
         public void AddByte(byte x) { Prep(sizeof(byte), 0); PutByte(x); }
         public void AddShort(short x) { Prep(sizeof(short), 0); PutShort(x); }
-        public void AddInt(int x) { Prep(sizeof(int), 0); PutInt32(x); }
-        public void AddLong(long x) { Prep(sizeof(long), 0); PutInt64(x); }
+        public void AddUshort(ushort x) { Prep(sizeof(ushort), 0); PutUshort(x); }
+        public void AddInt(int x) { Prep(sizeof(int), 0); PutInt(x); }
+        public void AddUint(uint x) { Prep(sizeof(uint), 0); PutUint(x); }
+        public void AddLong(long x) { Prep(sizeof(long), 0); PutLong(x); }
+        public void AddULong(ulong x) { Prep(sizeof(ulong), 0); PutUlong(x); }
         public void AddFloat(float x) { Prep(sizeof(float), 0); PutFloat(x); }
         public void AddDouble(double x) { Prep(sizeof(double), 0);
                                           PutDouble(x); }
@@ -151,11 +175,11 @@ namespace FlatBuffers
         public void AddOffset(int off)
         {
             Prep(sizeof(int), 0);  // Ensure alignment is already done.
-            if (off > Offset)
+            if (off > Offset())
                 throw new ArgumentException();
 
-            off = Offset - off + sizeof(int);
-            PutInt32(off);
+            off = Offset() - off + sizeof(int);
+            PutInt(off);
         }
 
         public void StartVector(int elemSize, int count, int alignment)
@@ -168,8 +192,8 @@ namespace FlatBuffers
 
         public int EndVector()
         {
-            PutInt32(_vectorNumElems);
-            return Offset;
+            PutInt(_vectorNumElems);
+            return Offset();
         }
 
         public void Nested(int obj)
@@ -177,7 +201,7 @@ namespace FlatBuffers
             // Structs are always stored inline, so need to be created right
             // where they are used. You'll get this assert if you created it
             // elsewhere.
-            if (obj != Offset)
+            if (obj != Offset())
                 throw new Exception(
                     "FlatBuffers: struct must be serialized inline.");
         }
@@ -195,7 +219,7 @@ namespace FlatBuffers
         {
             NotNested();
             _vtable = new int[numfields];
-            _objectStart = Offset;
+            _objectStart = Offset();
         }
 
 
@@ -203,14 +227,18 @@ namespace FlatBuffers
         // buffer.
         public void Slot(int voffset)
         {
-            _vtable[voffset] = Offset;
+            _vtable[voffset] = Offset();
         }
 
         // Add a scalar to a table at `o` into its vtable, with value `x` and default `d`
-        public void AddByte(int o, byte x, int d) { if (x != d) { AddByte(x); Slot(o); } }
+        public void AddSbyte(int o, sbyte x, sbyte d) { if (x != d) { AddSbyte(x); Slot(o); } }
+        public void AddByte(int o, byte x, byte d) { if (x != d) { AddByte(x); Slot(o); } }
         public void AddShort(int o, short x, int d) { if (x != d) { AddShort(x); Slot(o); } }
+        public void AddUshort(int o, ushort x, ushort d) { if (x != d) { AddUshort(x); Slot(o); } }
         public void AddInt(int o, int x, int d) { if (x != d) { AddInt(x); Slot(o); } }
+        public void AddUint(int o, uint x, uint d) { if (x != d) { AddUint(x); Slot(o); } }
         public void AddLong(int o, long x, long d) { if (x != d) { AddLong(x); Slot(o); } }
+        public void AddULong(int o, ulong x, ulong d) { if (x != d) { AddULong(x); Slot(o); } }
         public void AddFloat(int o, float x, double d) { if (x != d) { AddFloat(x); Slot(o); } }
         public void AddDouble(int o, double x, double d) { if (x != d) { AddDouble(x); Slot(o); } }
         public void AddOffset(int o, int x, int d) { if (x != d) { AddOffset(x); Slot(o); } }
@@ -245,7 +273,7 @@ namespace FlatBuffers
                   "Flatbuffers: calling endObject without a startObject");
 
             AddInt((int)0);
-            var vtableloc = Offset;
+            var vtableloc = Offset();
             // Write out the current vtable.
             for (int i = _vtable.Length - 1; i >= 0 ; i--) {
                 // Offset relative to the start of the table.
@@ -298,9 +326,9 @@ namespace FlatBuffers
 
                     _vtables = newvtables;
                 };
-                _vtables[_numVtables++] = Offset;
+                _vtables[_numVtables++] = Offset();
                 // Point table to current vtable.
-                _bb.PutInt(_bb.Length - vtableloc, Offset - vtableloc);
+                _bb.PutInt(_bb.Length - vtableloc, Offset() - vtableloc);
             }
 
             _vtable = null;
@@ -313,17 +341,13 @@ namespace FlatBuffers
             AddOffset(rootTable);
         }
 
-        public ByteBuffer Data { get { return _bb; }}
-
-        // The FlatBuffer data doesn't start at offset 0 in the ByteBuffer:
-        public int DataStart { get { return _space; } }
-
+        public ByteBuffer DataBuffer() { return _bb; }
 
         // Utility function for copying a byte array that starts at 0.
         public byte[] SizedByteArray()
         {
             var newArray = new byte[_bb.Data.Length];
-            Buffer.BlockCopy(_bb.Data, DataStart, newArray, 0,
+            Buffer.BlockCopy(_bb.Data, _bb.position(), newArray, 0,
                              _bb.Data.Length);
             return newArray;
         }

net/FlatBuffers/FlatBuffers.1.0.0.nuspec

-<?xml version="1.0" encoding="utf-8"?>
-<package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
-  <metadata>
-    <id>FlatBuffers</id>
-    <version>1.0.0-alpha00003</version>
-    <authors>Google Inc</authors>
-    <description>A .NET port of Google Inc's FlatBuffers project.</description>
-    <language>en-US</language>
-    <projectUrl>https://github.com/evolutional/flatbuffers</projectUrl>
-    <licenseUrl>http://www.apache.org/licenses/LICENSE-2.0</licenseUrl>
-  </metadata>
-</package>
\ No newline at end of file

net/FlatBuffers/Table.cs

@@ -74,14 +74,14 @@ namespace FlatBuffers
             return t;
         }
 
-        protected static bool __has_identifier(ByteBuffer bb, int offset, string ident)
+        protected static bool __has_identifier(ByteBuffer bb, string ident)
         {
             if (ident.Length != FlatBufferConstants.FileIdentifierLength)
                 throw new ArgumentException("FlatBuffers: file identifier must be length " + FlatBufferConstants.FileIdentifierLength, "ident");
 
             for (var i = 0; i < FlatBufferConstants.FileIdentifierLength; i++)
             {
-                if (ident[i] != (char)bb.Get(offset + sizeof(int) + i)) return false;
+                if (ident[i] != (char)bb.Get(bb.position() + sizeof(int) + i)) return false;
             }
 
             return true;

src/flatc.cpp

@@ -62,21 +62,28 @@ struct Generator {
                    const flatbuffers::GeneratorOptions &opts);
   const char *extension;
   const char *name;
+  flatbuffers::GeneratorOptions::Language lang;
   const char *help;
 };
 
 const Generator generators[] = {
   { flatbuffers::GenerateBinary,   "b", "binary",
+    flatbuffers::GeneratorOptions::kMAX,
     "Generate wire format binaries for any data definitions" },
   { flatbuffers::GenerateTextFile, "t", "text",
+    flatbuffers::GeneratorOptions::kMAX,
     "Generate text output for any data definitions" },
   { flatbuffers::GenerateCPP,      "c", "C++",
+    flatbuffers::GeneratorOptions::kMAX,
     "Generate C++ headers for tables/structs" },
   { flatbuffers::GenerateGo,       "g", "Go",
+    flatbuffers::GeneratorOptions::kMAX,
     "Generate Go files for tables/structs" },
-  { flatbuffers::GenerateJava,     "j", "Java",
+  { flatbuffers::GenerateGeneral,  "j", "Java",
+    flatbuffers::GeneratorOptions::kJava,
     "Generate Java classes for tables/structs" },
-  { flatbuffers::GenerateCSharp,   "n", "C#",
+  { flatbuffers::GenerateGeneral,  "n", "C#",
+    flatbuffers::GeneratorOptions::kCSharp,
     "Generate C# classes for tables/structs" }
 };
 
@@ -194,6 +201,7 @@ int main(int argc, const char *argv[]) {
       for (size_t i = 0; i < num_generators; ++i) {
         if (generator_enabled[i]) {
           flatbuffers::EnsureDirExists(output_path);
+          opts.lang = generators[i].lang;
           if (!generators[i].generate(parser, output_path, filebase, opts)) {
             Error((std::string("Unable to generate ") +
                    generators[i].name +

src/idl_gen_cpp.cpp

@@ -26,7 +26,7 @@ namespace cpp {
 // Return a C++ type from the table in idl.h
 static std::string GenTypeBasic(const Type &type) {
   static const char *ctypename[] = {
-    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) #CTYPE,
+    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) #CTYPE,
       FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
     #undef FLATBUFFERS_TD
   };
@@ -96,16 +96,6 @@ static std::string GenTypeGet(const Parser &parser, const Type &type,
     : beforeptr + GenTypePointer(parser, type) + afterptr;
 }
 
-// Generate a documentation comment, if available.
-static void GenComment(const std::string &dc,
-                       std::string *code_ptr,
-                       const char *prefix = "") {
-  std::string &code = *code_ptr;
-  if (dc.length()) {
-    code += std::string(prefix) + "///" + dc + "\n";
-  }
-}
-
 static std::string GenEnumVal(const EnumDef &enum_def, const EnumVal &enum_val,
                               const GeneratorOptions &opts) {
   return opts.prefixed_enums ? enum_def.name + "_" + enum_val.name

src/idl_gen_csharp.cpp

-/*
- * 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.
- */
-
-#include "flatbuffers/flatbuffers.h"
-#include "flatbuffers/idl.h"
-#include "flatbuffers/util.h"
-
-namespace flatbuffers {
-namespace csharp {
-
-static std::string GenTypeBasic(const Type &type) {
-  static const char *ctypename[] = {
-    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) #JTYPE,
-      FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
-    #undef FLATBUFFERS_TD
-  };
-  return ctypename[type.base_type];
-}
-
-static std::string GenTypeGet(const Type &type);
-
-static std::string GenTypePointer(const Type &type) {
-  switch (type.base_type) {
-    case BASE_TYPE_STRING:
-      return "string";
-    case BASE_TYPE_VECTOR:
-      return GenTypeGet(type.VectorType());
-    case BASE_TYPE_STRUCT:
-      return type.struct_def->name;
-    case BASE_TYPE_UNION:
-      // fall through
-    default:
-      return "Table";
-  }
-}
-
-static std::string GenTypeGet(const Type &type) {
-  return IsScalar(type.base_type)
-    ? GenTypeBasic(type)
-    : GenTypePointer(type);
-}
-
-static void GenComment(const std::string &dc,
-                       std::string *code_ptr,
-                       const char *prefix = "") {
-  std::string &code = *code_ptr;
-  if (dc.length()) {
-    code += std::string(prefix) + "/*" + dc + "*/\n";
-  }
-}
-
-
-static void GenEnum(EnumDef &enum_def, std::string *code_ptr) {
-  std::string &code = *code_ptr;
-  if (enum_def.generated) return;
-
-  // Generate enum definitions of the form:
-  // public static int Name = value;
-  // We use ints rather than the C# Enum feature, because we want them
-  // to map directly to how they're used in C/C++ and file formats.
-  GenComment(enum_def.doc_comment, code_ptr);
-  code += "public class " + enum_def.name + "\n{\n";
-  for (auto it = enum_def.vals.vec.begin();
-       it != enum_def.vals.vec.end();
-       ++it) {
-    auto &ev = **it;
-    GenComment(ev.doc_comment, code_ptr, "  ");
-    code += "  public static " + GenTypeBasic(enum_def.underlying_type);
-    code += " " + ev.name + " = ";
-    code += NumToString(ev.value) + ";\n";
-  }
-  code += "};\n\n";
-}
-
-// Returns the function name that is able to read a value of the given type.
-static std::string GenGetter(const Type &type) {
-  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());
-    default:
-      return "bb.Get" + (SizeOf(type.base_type) > 1
-        ? MakeCamel(GenTypeGet(type))
-        : "");
-  }
-}
-
-// Returns the method name for use with add/put calls.
-static std::string GenMethod(const FieldDef &field) {
-  return IsScalar(field.value.type.base_type)
-    ? MakeCamel(GenTypeBasic(field.value.type))
-    : (IsStruct(field.value.type) ? "Struct" : "Offset");
-}
-
-// Recursively generate arguments for a constructor, to deal with nested
-// structs.
-static void GenStructArgs(const StructDef &struct_def, std::string *code_ptr,
-                          const char *nameprefix) {
-  std::string &code = *code_ptr;
-  for (auto it = struct_def.fields.vec.begin();
-       it != struct_def.fields.vec.end();
-       ++it) {
-    auto &field = **it;
-    if (IsStruct(field.value.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 struct name.
-      GenStructArgs(*field.value.type.struct_def, code_ptr,
-                    (field.value.type.struct_def->name + "_").c_str());
-    } else {
-      code += ", " + GenTypeBasic(field.value.type) + " " + nameprefix;
-    code += MakeCamel(field.name, true);
-    }
-  }
-}
-
-// Recusively generate struct construction statements of the form:
-// builder.PutType(name);
-// and insert manual padding.
-static void GenStructBody(const StructDef &struct_def, std::string *code_ptr,
-                          const char *nameprefix) {
-  std::string &code = *code_ptr;
-  code += "    builder.Prep(" + 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;
-    if (field.padding)
-      code += "    builder.Pad(" + NumToString(field.padding) + ");\n";
-    if (IsStruct(field.value.type)) {
-      GenStructBody(*field.value.type.struct_def, code_ptr,
-                    (field.value.type.struct_def->name + "_").c_str());
-    } else {
-      code += "    builder.Put" + GenMethod(field) + "(";
-      code += nameprefix + MakeCamel(field.name, true) + ");\n";
-    }
-  }
-}
-
-static void GenStruct(const Parser &parser, StructDef &struct_def,
-                      std::string *code_ptr) {
-  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);
-  code += "public class " + struct_def.name + " : ";
-  code += struct_def.fixed ? "Struct" : "Table";
-  code += " {\n";
-  if (!struct_def.fixed) {
-    // Generate a special accessor for the table that when used as the root
-    // of a FlatBuffer
-    code += "  public static " + struct_def.name + " GetRootAs";
-    code += struct_def.name;
-    code += "(ByteBuffer _bb, int offset) { ";
-    // Endian handled by .NET ByteBuffer impl
-    code += "return (new " + struct_def.name;
-    code += "()).__init(_bb.GetInt(offset) + offset, _bb); }\n";
-    if (parser.root_struct_def == &struct_def) {
-      if (parser.file_identifier_.length()) {
-        // Check if a buffer has the identifier.
-        code += "  public static bool " + struct_def.name;
-        code += "BufferHasIdentifier(ByteBuffer _bb, int offset) { return ";
-        code += "__has_identifier(_bb, offset, \"" + 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 " + struct_def.name;
-  code += " __init(int _i, ByteBuffer _bb) ";
-  code += "{ bb_pos = _i; bb = _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, "  ");
-    std::string type_name = GenTypeGet(field.value.type);
-    std::string method_start = "  public " + type_name + " " +
-                               MakeCamel(field.name, true);
-    // 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 " + MakeCamel(field.name, true);
-      code += "(new ";
-      code += type_name + "()); }\n";
-    } else if (field.value.type.base_type == BASE_TYPE_VECTOR &&
-               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 " + MakeCamel(field.name, true);
-      code += "(new ";
-      code += type_name + "(), j); }\n";
-    }
-    std::string getter = GenGetter(field.value.type);
-    code += method_start + "(";
-    // Most field accessors need to retrieve and test the field offset first,
-    // this is the prefix code for that:
-    auto offset_prefix = ") { int o = __offset(" +
-                         NumToString(field.value.offset) +
-                         "); return o != 0 ? ";
-    if (IsScalar(field.value.type.base_type)) {
-      if (struct_def.fixed) {
-        code += ") { return " + getter;
-        code += "(bb_pos + " + NumToString(field.value.offset) + ")";
-      } else {
-        code += offset_prefix + getter;
-        code += "(o + bb_pos) : (";
-        code += type_name;
-        code += ")" + field.value.constant;
-      }
-    } else {
-      switch (field.value.type.base_type) {
-        case BASE_TYPE_STRUCT:
-          code += type_name + " obj";
-          if (struct_def.fixed) {
-            code += ") { return obj.__init(bb_pos + ";
-            code += NumToString(field.value.offset) + ", bb)";
-          } else {
-            code += offset_prefix;
-            code += "obj.__init(";
-            code += field.value.type.struct_def->fixed
-                      ? "o + bb_pos"
-                      : "__indirect(o + bb_pos)";
-            code += ", bb) : null";
-          }
-          break;
-        case BASE_TYPE_STRING:
-          code += offset_prefix + getter +"(o + bb_pos) : null";
-          break;
-        case BASE_TYPE_VECTOR: {
-          auto vectortype = field.value.type.VectorType();
-          if (vectortype.base_type == BASE_TYPE_STRUCT) {
-            code += type_name + " obj, ";
-            getter = "obj.__init";
-          }
-          code += "int j" + offset_prefix + getter +"(";
-          auto index = "__vector(o) + 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 += ") : ";
-          code += IsScalar(field.value.type.element) ? "(" + type_name + ")0" : "null";
-          break;
-        }
-        case BASE_TYPE_UNION:
-          code += type_name + " obj" + offset_prefix + getter;
-          code += "(obj, o) : null";
-          break;
-        default:
-          assert(0);
-      }
-    }
-    code += "; }\n";
-    if (field.value.type.base_type == BASE_TYPE_VECTOR) {
-      code += "  public int " + MakeCamel(field.name, true) + "Length(";
-      code += offset_prefix;
-      code += "__vector_len(o) : 0; }\n";
-    }
-  }
-  code += "\n";
-  if (struct_def.fixed) {
-    // create a struct constructor function
-    code += "  public static int Create" + struct_def.name;
-    code += "(FlatBufferBuilder builder";
-    GenStructArgs(struct_def, code_ptr, "");
-    code += ") {\n";
-    GenStructBody(struct_def, code_ptr, "");
-    code += "    return builder.Offset;\n  }\n";
-  } else {
-    // Create 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); }
-    code += "  public static void Start" + struct_def.name;
-    code += "(FlatBufferBuilder builder) { builder.StartObject(";
-    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;
-      code += "  public static void Add" + MakeCamel(field.name);
-      code += "(FlatBufferBuilder builder, " + GenTypeBasic(field.value.type);
-      auto argname = MakeCamel(field.name, false);
-      if (!IsScalar(field.value.type.base_type)) argname += "Offset";
-      code += " " + argname + ") { builder.Add";
-      code += GenMethod(field) + "(";
-      code += NumToString(it - struct_def.fields.vec.begin()) + ", ";
-      code += argname + ", " + field.value.constant;
-      code += "); }\n";
-      if (field.value.type.base_type == BASE_TYPE_VECTOR) {
-        code += "  public static void Start" + MakeCamel(field.name);
-        code += "Vector(FlatBufferBuilder builder, int numElems) ";
-        code += "{ builder.StartVector(";
-        auto vector_type = field.value.type.VectorType();
-        auto alignment = InlineAlignment(vector_type);
-        auto elem_size = InlineSize(vector_type);
-        code += NumToString(elem_size);
-        code += ", numElems, " + NumToString(alignment);
-        code += "); }\n";
-      }
-    }
-    code += "  public static int End" + struct_def.name;
-    code += "(FlatBufferBuilder builder) { return builder.EndObject(); }\n";
-    if (parser.root_struct_def == &struct_def) {
-      code += "  public static void Finish" + struct_def.name;
-      code += "Buffer(FlatBufferBuilder builder, int offset) { ";
-      code += "builder.Finish(offset";
-      if (parser.file_identifier_.length())
-        code += ", \"" + parser.file_identifier_ + "\"";
-      code += "); }\n";
-    }
-  }
-  code += "};\n\n";
-}
-
-// Save out the generated code for a single Java class while adding
-// declaration boilerplate.
-static bool SaveClass(const Parser &parser, const Definition &def,
-                      const std::string &classcode, const std::string &path) {
-  if (!classcode.length()) return true;
-
-  std::string namespace_csharp;
-  std::string namespace_dir = path;
-  auto &namespaces = parser.namespaces_.back()->components;
-  for (auto it = namespaces.begin(); it != namespaces.end(); ++it) {
-    if (namespace_csharp.length()) {
-      namespace_csharp += ".";
-      namespace_dir += kPathSeparator;
-    }
-    namespace_csharp += *it;
-    namespace_dir += *it;
-  }
-  EnsureDirExists(namespace_dir);
-
-  std::string code = "// automatically generated, do not modify\n\n";
-  code += "namespace " + namespace_csharp + "\n{\n\n";
-// Other usings
-  code += "using FlatBuffers;\n\n";
-  code += classcode;
-  code += "\n}\n";
-  auto filename = namespace_dir + kPathSeparator + def.name + ".cs";
-  return SaveFile(filename.c_str(), code, false);
-}
-
-}  // namespace csharp
-
-bool GenerateCSharp(const Parser &parser,
-                    const std::string &path,
-                    const std::string & /*file_name*/,
-                    const GeneratorOptions & /*opts*/) {
-  using namespace csharp;
-
-  for (auto it = parser.enums_.vec.begin();
-       it != parser.enums_.vec.end(); ++it) {
-    std::string enumcode;
-    GenEnum(**it, &enumcode);
-    if (!SaveClass(parser, **it, enumcode, path))
-      return false;
-  }
-
-  for (auto it = parser.structs_.vec.begin();
-       it != parser.structs_.vec.end(); ++it) {
-    std::string declcode;
-    GenStruct(parser, **it, &declcode);
-    if (!SaveClass(parser, **it, declcode, path))
-      return false;
-  }
-
-  return true;
-}
-
-}  // namespace flatbuffers
-

src/idl_gen_java.cpp → src/idl_gen_general.cpp

@@ -10,7 +10,7 @@
  * 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
+ * See the License for the specific GeneratorOptions::Language governing permissions and
  * limitations under the License.
  */
 
@@ -21,25 +21,116 @@
 #include "flatbuffers/util.h"
 
 namespace flatbuffers {
-namespace java {
 
-static std::string GenTypeBasic(const Type &type) {
-  static const char *ctypename[] = {
-    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) #JTYPE,
+// Convert an underscore_based_indentifier in to camelCase.
+// Also uppercases the first character if first is true.
+std::string MakeCamel(const std::string &in, bool first) {
+  std::string s;
+  for (size_t i = 0; i < in.length(); i++) {
+    if (!i && first)
+      s += static_cast<char>(toupper(in[0]));
+    else if (in[i] == '_' && i + 1 < in.length())
+      s += static_cast<char>(toupper(in[++i]));
+    else
+      s += in[i];
+  }
+  return s;
+}
+
+// Generate a documentation comment, if available.
+void GenComment(const std::string &dc, std::string *code_ptr,
+                const char *prefix) {
+  std::string &code = *code_ptr;
+  if (dc.length()) {
+    code += std::string(prefix) + "///" + dc + "\n";
+  }
+}
+
+// These arrays need to correspond to the GeneratorOptions::k enum.
+
+struct LanguageParameters {
+  GeneratorOptions::Language language;
+  // Whether function names in the language typically start with uppercase.
+  bool first_camel_upper;
+  const char *file_extension;
+  const char *string_type;
+  const char *bool_type;
+  const char *open_curly;
+  const char *const_decl;
+  const char *inheritance_marker;
+  const char *namespace_ident;
+  const char *namespace_begin;
+  const char *namespace_end;
+  const char *set_bb_byteorder;
+  const char *includes;
+};
+
+LanguageParameters language_parameters[] = {
+  {
+    GeneratorOptions::kJava,
+    false,
+    ".java",
+    "String",
+    "boolean ",
+    " {\n",
+    "  public static final ",
+    " extends ",
+    "package ",
+    ";",
+    "",
+    "_bb.order(ByteOrder.LITTLE_ENDIAN); ",
+    "import java.nio.*;\nimport java.lang.*;\nimport java.util.*;\n"
+      "import com.google.flatbuffers.*;\n\n",
+  },
+  {
+    GeneratorOptions::kCSharp,
+    true,
+    ".cs",
+    "string",
+    "bool ",
+    "\n{\n",
+    "  public static ",
+    " : ",
+    "namespace ",
+    "\n{",
+    "\n}\n",
+    "",
+    "using FlatBuffers;\n\n",
+  }
+};
+
+static_assert(sizeof(language_parameters) / sizeof(LanguageParameters) ==
+              GeneratorOptions::kMAX,
+              "Please add extra elements to the arrays above.");
+
+static std::string FunctionStart(const LanguageParameters &lang, char upper) {
+  return std::string() +
+      (lang.language == GeneratorOptions::kJava
+         ? static_cast<char>(tolower(upper))
+         : upper);
+}
+
+static std::string GenTypeBasic(const LanguageParameters &lang,
+                                const Type &type) {
+  static const char *gtypename[] = {
+    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
+        #JTYPE, #NTYPE,
       FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
     #undef FLATBUFFERS_TD
   };
-  return ctypename[type.base_type];
+  return gtypename[type.base_type * GeneratorOptions::kMAX + lang.language];
 }
 
-static std::string GenTypeGet(const Type &type);
+static std::string GenTypeGet(const LanguageParameters &lang,
+                              const Type &type);
 
-static std::string GenTypePointer(const Type &type) {
+static std::string GenTypePointer(const LanguageParameters &lang,
+                                  const Type &type) {
   switch (type.base_type) {
     case BASE_TYPE_STRING:
-      return "String";
+      return lang.string_type;
     case BASE_TYPE_VECTOR:
-      return GenTypeGet(type.VectorType());
+      return GenTypeGet(lang, type.VectorType());
     case BASE_TYPE_STRUCT:
       return type.struct_def->name;
     case BASE_TYPE_UNION:
@@ -49,38 +140,32 @@ static std::string GenTypePointer(const Type &type) {
   }
 }
 
-static std::string GenTypeGet(const Type &type) {
+static std::string GenTypeGet(const LanguageParameters &lang,
+                              const Type &type) {
   return IsScalar(type.base_type)
-    ? GenTypeBasic(type)
-    : GenTypePointer(type);
-}
-
-static void GenComment(const std::string &dc,
-                       std::string *code_ptr,
-                       const char *prefix = "") {
-  std::string &code = *code_ptr;
-  if (dc.length()) {
-    code += std::string(prefix) + "///" + dc + "\n";
-  }
+    ? GenTypeBasic(lang, type)
+    : GenTypePointer(lang, type);
 }
 
-static void GenEnum(EnumDef &enum_def, std::string *code_ptr) {
+static void GenEnum(const LanguageParameters &lang, EnumDef &enum_def,
+                    std::string *code_ptr) {
   std::string &code = *code_ptr;
   if (enum_def.generated) return;
 
   // Generate enum definitions of the form:
-  // public static final int name = value;
-  // We use ints rather than the Java Enum feature, because we want them
+  // 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);
-  code += "public class " + enum_def.name + " {\n";
+  code += "public class " + enum_def.name + lang.open_curly;
   for (auto it = enum_def.vals.vec.begin();
        it != enum_def.vals.vec.end();
        ++it) {
     auto &ev = **it;
     GenComment(ev.doc_comment, code_ptr, "  ");
-    code += "  public static final " + GenTypeBasic(enum_def.underlying_type);
+    code += lang.const_decl;
+    code += GenTypeBasic(lang, enum_def.underlying_type);
     code += " " + ev.name + " = ";
     code += NumToString(ev.value) + ";\n";
   }
@@ -88,30 +173,33 @@ static void GenEnum(EnumDef &enum_def, std::string *code_ptr) {
 }
 
 // Returns the function name that is able to read a value of the given type.
-static std::string GenGetter(const Type &type) {
+static std::string GenGetter(const LanguageParameters &lang,
+                             const Type &type) {
   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_VECTOR: return GenGetter(lang, type.VectorType());
     default:
-      return "bb.get" + (SizeOf(type.base_type) > 1
-        ? MakeCamel(GenTypeGet(type))
-        : "");
+      return "bb." + FunctionStart(lang, 'G') + "et" +
+        (GenTypeBasic(lang, type) != "byte"
+          ? MakeCamel(GenTypeGet(lang, type))
+          : "");
   }
 }
 
 // Returns the method name for use with add/put calls.
-static std::string GenMethod(const Type &type) {
+static std::string GenMethod(const LanguageParameters &lang, const Type &type) {
   return IsScalar(type.base_type)
-    ? MakeCamel(GenTypeBasic(type))
+    ? MakeCamel(GenTypeBasic(lang, type))
     : (IsStruct(type) ? "Struct" : "Offset");
 }
 
 // Recursively generate arguments for a constructor, to deal with nested
 // structs.
-static void GenStructArgs(const StructDef &struct_def, std::string *code_ptr,
-                          const char *nameprefix) {
+static void GenStructArgs(const LanguageParameters &lang,
+                          const StructDef &struct_def,
+                          std::string *code_ptr, const char *nameprefix) {
   std::string &code = *code_ptr;
   for (auto it = struct_def.fields.vec.begin();
        it != struct_def.fields.vec.end();
@@ -121,11 +209,11 @@ static void GenStructArgs(const StructDef &struct_def, std::string *code_ptr,
       // 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 struct name.
-      GenStructArgs(*field.value.type.struct_def, code_ptr,
+      GenStructArgs(lang, *field.value.type.struct_def, code_ptr,
                     (field.value.type.struct_def->name + "_").c_str());
     } else {
-      code += ", " + GenTypeBasic(field.value.type) + " " + nameprefix;
-      code += MakeCamel(field.name, false);
+      code += ", " + GenTypeBasic(lang, field.value.type) + " " + nameprefix;
+      code += MakeCamel(field.name, lang.first_camel_upper);
     }
   }
 }
@@ -133,29 +221,33 @@ static void GenStructArgs(const StructDef &struct_def, std::string *code_ptr,
 // Recusively generate struct construction statements of the form:
 // builder.putType(name);
 // and insert manual padding.
-static void GenStructBody(const StructDef &struct_def, std::string *code_ptr,
-                          const char *nameprefix) {
+static void GenStructBody(const LanguageParameters &lang,
+                          const StructDef &struct_def,
+                          std::string *code_ptr, const char *nameprefix) {
   std::string &code = *code_ptr;
-  code += "    builder.prep(" + NumToString(struct_def.minalign) + ", ";
+  code += "    builder." + FunctionStart(lang, 'P') + "rep(";
+  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) {
+       it != struct_def.fields.vec.rend(); ++it) {
     auto &field = **it;
-    if (field.padding)
-      code += "    builder.pad(" + NumToString(field.padding) + ");\n";
+    if (field.padding) {
+      code += "    builder." + FunctionStart(lang, 'P') + "ad(";
+      code += NumToString(field.padding) + ");\n";
+    }
     if (IsStruct(field.value.type)) {
-      GenStructBody(*field.value.type.struct_def, code_ptr,
+      GenStructBody(lang, *field.value.type.struct_def, code_ptr,
                     (field.value.type.struct_def->name + "_").c_str());
     } else {
-      code += "    builder.put" + GenMethod(field.value.type) + "(";
-      code += nameprefix + MakeCamel(field.name, false) + ");\n";
+      code += "    builder." + FunctionStart(lang, 'P') + "ut";
+      code += GenMethod(lang, field.value.type) + "(" += nameprefix;
+      code += MakeCamel(field.name, lang.first_camel_upper) + ");\n";
     }
   }
 }
 
-static void GenStruct(const Parser &parser, StructDef &struct_def,
-                      std::string *code_ptr) {
+static void GenStruct(const LanguageParameters &lang, const Parser &parser,
+                      StructDef &struct_def, std::string *code_ptr) {
   if (struct_def.generated) return;
   std::string &code = *code_ptr;
 
@@ -166,22 +258,24 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
   //   int o = __offset(offset); return o != 0 ? bb.getType(o + i) : default;
   // }
   GenComment(struct_def.doc_comment, code_ptr);
-  code += "public class " + struct_def.name + " extends ";
+  code += "public class " + struct_def.name + lang.inheritance_marker;
   code += struct_def.fixed ? "Struct" : "Table";
   code += " {\n";
   if (!struct_def.fixed) {
     // Generate a special accessor for the table that when used as the root
     // of a FlatBuffer
-    code += "  public static " + struct_def.name + " getRootAs";
-    code += struct_def.name;
+    code += "  public static " + struct_def.name + " ";
+    code += FunctionStart(lang, 'G') + "etRootAs" + struct_def.name;
     code += "(ByteBuffer _bb) { ";
-    code += "_bb.order(ByteOrder.LITTLE_ENDIAN); ";
+    code += lang.set_bb_byteorder;
     code += "return (new " + struct_def.name;
-    code += "()).__init(_bb.getInt(_bb.position()) + _bb.position(), _bb); }\n";
+    code += "()).__init(_bb." + FunctionStart(lang, 'G');
+    code += "etInt(_bb.position()) + _bb.position(), _bb); }\n";
     if (parser.root_struct_def == &struct_def) {
       if (parser.file_identifier_.length()) {
         // Check if a buffer has the identifier.
-        code += "  public static boolean " + struct_def.name;
+        code += "  public static ";
+        code += lang.bool_type + struct_def.name;
         code += "BufferHasIdentifier(ByteBuffer _bb) { return ";
         code += "__has_identifier(_bb, \"" + parser.file_identifier_;
         code += "\"); }\n";
@@ -199,37 +293,42 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
     auto &field = **it;
     if (field.deprecated) continue;
     GenComment(field.doc_comment, code_ptr, "  ");
-    std::string type_name = GenTypeGet(field.value.type);
+    std::string type_name = GenTypeGet(lang, field.value.type);
     std::string method_start = "  public " + type_name + " " +
-                               MakeCamel(field.name, false);
+                               MakeCamel(field.name, lang.first_camel_upper);
     // 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 " + MakeCamel(field.name, false);
+      code += method_start + "() { return ";
+      code += MakeCamel(field.name, lang.first_camel_upper);
       code += "(new ";
       code += type_name + "()); }\n";
     } else if (field.value.type.base_type == BASE_TYPE_VECTOR &&
                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 " + MakeCamel(field.name, false);
+      code += method_start + "(int j) { return ";
+      code += MakeCamel(field.name, lang.first_camel_upper);
       code += "(new ";
       code += type_name + "(), j); }\n";
     }
-    std::string getter = GenGetter(field.value.type);
+    std::string getter = GenGetter(lang, field.value.type);
     code += method_start + "(";
     // Most field accessors need to retrieve and test the field offset first,
     // this is the prefix code for that:
     auto offset_prefix = ") { int o = __offset(" +
                          NumToString(field.value.offset) +
                          "); return o != 0 ? ";
+    std::string default_cast = "";
+    if (lang.language == GeneratorOptions::kCSharp)
+      default_cast = "(" + type_name + ")";
     if (IsScalar(field.value.type.base_type)) {
       if (struct_def.fixed) {
         code += ") { return " + getter;
         code += "(bb_pos + " + NumToString(field.value.offset) + ")";
       } else {
         code += offset_prefix + getter;
-        code += "(o + bb_pos) : " + field.value.constant;
+        code += "(o + bb_pos) : " + default_cast + field.value.constant;
       }
     } else {
       switch (field.value.type.base_type) {
@@ -268,7 +367,9 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
             code += index;
           }
           code += ") : ";
-          code += IsScalar(field.value.type.element) ? "0" : "null";
+          code += IsScalar(field.value.type.element)
+                  ? default_cast + "0"
+                  : "null";
           break;
         }
         case BASE_TYPE_UNION:
@@ -281,13 +382,15 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
     }
     code += "; }\n";
     if (field.value.type.base_type == BASE_TYPE_VECTOR) {
-      code += "  public int " + MakeCamel(field.name, false) + "Length(";
-      code += offset_prefix;
+      code += "  public int " + MakeCamel(field.name, lang.first_camel_upper);
+      code += "Length(" + offset_prefix;
       code += "__vector_len(o) : 0; }\n";
     }
-    if (field.value.type.base_type == BASE_TYPE_VECTOR ||
-        field.value.type.base_type == BASE_TYPE_STRING) {
-      code += "  public ByteBuffer " + MakeCamel(field.name, false);
+    if ((field.value.type.base_type == BASE_TYPE_VECTOR ||
+         field.value.type.base_type == BASE_TYPE_STRING) &&
+        lang.language == GeneratorOptions::kJava) {
+      code += "  public ByteBuffer ";
+      code += MakeCamel(field.name, lang.first_camel_upper);
       code += "AsByteBuffer() { return __vector_as_bytebuffer(";
       code += NumToString(field.value.offset) + ", ";
       code += NumToString(field.value.type.base_type == BASE_TYPE_STRING ? 1 :
@@ -298,31 +401,36 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
   code += "\n";
   if (struct_def.fixed) {
     // create a struct constructor function
-    code += "  public static int create" + struct_def.name;
-    code += "(FlatBufferBuilder builder";
-    GenStructArgs(struct_def, code_ptr, "");
+    code += "  public static int " + FunctionStart(lang, 'C') + "reate";
+    code += struct_def.name + "(FlatBufferBuilder builder";
+    GenStructArgs(lang, struct_def, code_ptr, "");
     code += ") {\n";
-    GenStructBody(struct_def, code_ptr, "");
-    code += "    return builder.offset();\n  }\n";
+    GenStructBody(lang, struct_def, code_ptr, "");
+    code += "    return builder.";
+    code += FunctionStart(lang, 'O') + "ffset();\n  }\n";
   } else {
     // Create 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); }
-    code += "  public static void start" + struct_def.name;
-    code += "(FlatBufferBuilder builder) { builder.startObject(";
+    code += "  public static void " + FunctionStart(lang, 'S') + "tart";
+    code += struct_def.name;
+    code += "(FlatBufferBuilder builder) { builder.";
+    code += FunctionStart(lang, 'S') + "tartObject(";
     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;
-      code += "  public static void add" + MakeCamel(field.name);
-      code += "(FlatBufferBuilder builder, " + GenTypeBasic(field.value.type);
+      code += "  public static void " + FunctionStart(lang, 'A') + "dd";
+      code += MakeCamel(field.name);
+      code += "(FlatBufferBuilder builder, ";
+      code += GenTypeBasic(lang, field.value.type);
       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 += " " + argname + ") { builder." + FunctionStart(lang, 'A') + "dd";
+      code += GenMethod(lang, field.value.type) + "(";
       code += NumToString(it - struct_def.fields.vec.begin()) + ", ";
       code += argname + ", " + field.value.constant;
       code += "); }\n";
@@ -332,30 +440,40 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
         auto elem_size = InlineSize(vector_type);
         if (!IsStruct(vector_type)) {
           // Generate a method to create a vector from a Java array.
-          code += "  public static int create" + MakeCamel(field.name);
+          code += "  public static int " + FunctionStart(lang, 'C') + "reate";
+          code += MakeCamel(field.name);
           code += "Vector(FlatBufferBuilder builder, ";
-          code += GenTypeBasic(vector_type) + "[] data) ";
-          code += "{ builder.startVector(";
+          code += GenTypeBasic(lang, vector_type) + "[] data) ";
+          code += "{ builder." + FunctionStart(lang, 'S') + "tartVector(";
           code += NumToString(elem_size);
-          code += ", data.length, " + NumToString(alignment);
-          code += "); for (int i = data.length - 1; i >= 0; i--) builder.add";
-          code += GenMethod(vector_type);
-          code += "(data[i]); return builder.endVector(); }\n";
+          code += ", data." + FunctionStart(lang, 'L') + "ength, ";
+          code += NumToString(alignment);
+          code += "); for (int i = data.";
+          code += FunctionStart(lang, 'L') + "ength - 1; i >= 0; i--) builder.";
+          code += FunctionStart(lang, 'A') + "dd";
+          code += GenMethod(lang, vector_type);
+          code += "(data[i]); return builder.";
+          code += FunctionStart(lang, 'E') + "ndVector(); }\n";
         }
         // Generate a method to start a vector, data to be added manually after.
-        code += "  public static void start" + MakeCamel(field.name);
+        code += "  public static void " + FunctionStart(lang, 'S') + "tart";
+        code += MakeCamel(field.name);
         code += "Vector(FlatBufferBuilder builder, int numElems) ";
-        code += "{ builder.startVector(";
+        code += "{ builder." + FunctionStart(lang, 'S') + "tartVector(";
         code += NumToString(elem_size);
         code += ", numElems, " + NumToString(alignment);
-        code += "); }\n";      }
+        code += "); }\n";
+      }
     }
-    code += "  public static int end" + struct_def.name;
-    code += "(FlatBufferBuilder builder) { return builder.endObject(); }\n";
+    code += "  public static int ";
+    code += FunctionStart(lang, 'E') + "nd" + struct_def.name;
+    code += "(FlatBufferBuilder builder) { return builder.";
+    code += FunctionStart(lang, 'E') + "ndObject(); }\n";
     if (parser.root_struct_def == &struct_def) {
-      code += "  public static void finish" + struct_def.name;
+      code += "  public static void ";
+      code += FunctionStart(lang, 'F') + "inish" + struct_def.name;
       code += "Buffer(FlatBufferBuilder builder, int offset) { ";
-      code += "builder.finish(offset";
+      code += "builder." + FunctionStart(lang, 'F') + "inish(offset";
       if (parser.file_identifier_.length())
         code += ", \"" + parser.file_identifier_ + "\"";
       code += "); }\n";
@@ -364,58 +482,58 @@ static void GenStruct(const Parser &parser, StructDef &struct_def,
   code += "};\n\n";
 }
 
-// Save out the generated code for a single Java class while adding
+// Save out the generated code for a single class while adding
 // declaration boilerplate.
-static bool SaveClass(const Parser &parser, const Definition &def,
-                      const std::string &classcode, const std::string &path,
-                      bool needs_imports) {
+static bool SaveClass(const LanguageParameters &lang, const Parser &parser,
+                      const Definition &def, const std::string &classcode,
+                      const std::string &path, bool needs_includes) {
   if (!classcode.length()) return true;
 
-  std::string namespace_java;
+  std::string namespace_general;
   std::string namespace_dir = path;
   auto &namespaces = parser.namespaces_.back()->components;
   for (auto it = namespaces.begin(); it != namespaces.end(); ++it) {
-    if (namespace_java.length()) {
-      namespace_java += ".";
+    if (namespace_general.length()) {
+      namespace_general += ".";
       namespace_dir += kPathSeparator;
     }
-    namespace_java += *it;
+    namespace_general += *it;
     namespace_dir += *it;
   }
   EnsureDirExists(namespace_dir);
 
   std::string code = "// automatically generated, do not modify\n\n";
-  code += "package " + namespace_java + ";\n\n";
-  if (needs_imports) {
-    code += "import java.nio.*;\nimport java.lang.*;\nimport java.util.*;\n";
-    code += "import com.google.flatbuffers.*;\n\n";
-  }
+  code += lang.namespace_ident + namespace_general + lang.namespace_begin;
+  code += "\n\n";
+  if (needs_includes) code += lang.includes;
   code += classcode;
-  auto filename = namespace_dir + kPathSeparator + def.name + ".java";
+  code += lang.namespace_end;
+  auto filename = namespace_dir + kPathSeparator + def.name +
+                  lang.file_extension;
   return SaveFile(filename.c_str(), code, false);
 }
 
-}  // namespace java
+bool GenerateGeneral(const Parser &parser,
+                     const std::string &path,
+                     const std::string & /*file_name*/,
+                     const GeneratorOptions &opts) {
 
-bool GenerateJava(const Parser &parser,
-                  const std::string &path,
-                  const std::string & /*file_name*/,
-                  const GeneratorOptions & /*opts*/) {
-  using namespace java;
+  assert(opts.lang <= GeneratorOptions::kMAX);
+  auto lang = language_parameters[opts.lang];
 
   for (auto it = parser.enums_.vec.begin();
        it != parser.enums_.vec.end(); ++it) {
     std::string enumcode;
-    GenEnum(**it, &enumcode);
-    if (!SaveClass(parser, **it, enumcode, path, false))
+    GenEnum(lang, **it, &enumcode);
+    if (!SaveClass(lang, parser, **it, enumcode, path, false))
       return false;
   }
 
   for (auto it = parser.structs_.vec.begin();
        it != parser.structs_.vec.end(); ++it) {
     std::string declcode;
-    GenStruct(parser, **it, &declcode);
-    if (!SaveClass(parser, **it, declcode, path, true))
+    GenStruct(lang, parser, **it, &declcode);
+    if (!SaveClass(lang, parser, **it, declcode, path, true))
       return false;
   }
 

src/idl_gen_go.cpp

@@ -612,7 +612,7 @@ static bool SaveType(const Parser &parser, const Definition &def,
 
 static std::string GenTypeBasic(const Type &type) {
   static const char *ctypename[] = {
-    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) #GTYPE,
+    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) #GTYPE,
       FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
     #undef FLATBUFFERS_TD
   };

src/idl_gen_text.cpp

@@ -159,7 +159,7 @@ template<> void Print<const void *>(const void *val,
       type = type.VectorType();
       // Call PrintVector above specifically for each element type:
       switch (type.base_type) {
-        #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+        #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
           case BASE_TYPE_ ## ENUM: \
             PrintVector<CTYPE>( \
               *reinterpret_cast<const Vector<CTYPE> *>(val), \
@@ -225,7 +225,7 @@ static void GenStruct(const StructDef &struct_def, const Table *table,
       OutputIdentifier(fd.name, opts, _text);
       text += ": ";
       switch (fd.value.type.base_type) {
-         #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+         #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
            case BASE_TYPE_ ## ENUM: \
               GenField<CTYPE>(fd, table, struct_def.fixed, \
                               opts, indent + Indent(opts), _text); \
@@ -233,7 +233,7 @@ static void GenStruct(const StructDef &struct_def, const Table *table,
           FLATBUFFERS_GEN_TYPES_SCALAR(FLATBUFFERS_TD)
         #undef FLATBUFFERS_TD
         // Generate drop-thru case statements for all pointer types:
-        #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+        #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
           case BASE_TYPE_ ## ENUM:
           FLATBUFFERS_GEN_TYPES_POINTER(FLATBUFFERS_TD)
         #undef FLATBUFFERS_TD

src/idl_parser.cpp

@@ -23,14 +23,15 @@
 namespace flatbuffers {
 
 const char *const kTypeNames[] = {
-  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) IDLTYPE,
+  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) IDLTYPE,
     FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
   #undef FLATBUFFERS_TD
   nullptr
 };
 
 const char kTypeSizes[] = {
-  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) sizeof(CTYPE),
+  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
+      sizeof(CTYPE),
     FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
   #undef FLATBUFFERS_TD
 };
@@ -92,7 +93,8 @@ enum {
   #define FLATBUFFERS_TOKEN(NAME, VALUE, STRING) kToken ## NAME = VALUE,
     FLATBUFFERS_GEN_TOKENS(FLATBUFFERS_TOKEN)
   #undef FLATBUFFERS_TOKEN
-  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) kToken ## ENUM,
+  #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
+      kToken ## ENUM,
     FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
   #undef FLATBUFFERS_TD
 };
@@ -102,7 +104,7 @@ static std::string TokenToString(int t) {
     #define FLATBUFFERS_TOKEN(NAME, VALUE, STRING) STRING,
       FLATBUFFERS_GEN_TOKENS(FLATBUFFERS_TOKEN)
     #undef FLATBUFFERS_TOKEN
-    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) IDLTYPE,
+    #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) IDLTYPE,
       FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
     #undef FLATBUFFERS_TD
   };
@@ -200,7 +202,7 @@ void Parser::Next() {
           attribute_.clear();
           attribute_.append(start, cursor_);
           // First, see if it is a type keyword from the table of types:
-          #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+          #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
             if (attribute_ == IDLTYPE) { \
               token_ = kToken ## ENUM; \
               return; \
@@ -491,7 +493,7 @@ uoffset_t Parser::ParseTable(const StructDef &struct_def) {
       auto field = it->second;
       if (!struct_def.sortbysize || size == SizeOf(value.type.base_type)) {
         switch (value.type.base_type) {
-          #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+          #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
             case BASE_TYPE_ ## ENUM: \
               builder_.Pad(field->padding); \
               if (struct_def.fixed) { \
@@ -504,7 +506,7 @@ uoffset_t Parser::ParseTable(const StructDef &struct_def) {
               break;
             FLATBUFFERS_GEN_TYPES_SCALAR(FLATBUFFERS_TD);
           #undef FLATBUFFERS_TD
-          #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+          #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
             case BASE_TYPE_ ## ENUM: \
               builder_.Pad(field->padding); \
               if (IsStruct(field->value.type)) { \
@@ -559,7 +561,7 @@ uoffset_t Parser::ParseVector(const Type &type) {
     // start at the back, since we're building the data backwards.
     auto &val = field_stack_.back().first;
     switch (val.type.base_type) {
-      #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE) \
+      #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE) \
         case BASE_TYPE_ ## ENUM: \
           if (IsStruct(val.type)) SerializeStruct(*val.type.struct_def, val); \
           else builder_.PushElement(atot<CTYPE>(val.constant.c_str())); \

tests/FlatBuffers.Test/Assert.cs

@@ -63,7 +63,7 @@ namespace FlatBuffers.Test
             {
                 action();
             }
-            catch (T ex)
+            catch (T)
             {
                 caught = true;
             }

tests/FlatBuffers.Test/FlatBuffersExampleTests.cs

@@ -39,7 +39,7 @@ namespace FlatBuffers.Test
 
             var str = fbb.CreateString("MyMonster");
             var test1 = fbb.CreateString("test1");
-            var test2 = fbb.CreateString("test2"); 
+            var test2 = fbb.CreateString("test2");
 
 
             Monster.StartInventoryVector(fbb, 5);
@@ -54,19 +54,19 @@ namespace FlatBuffers.Test
             var mon2 = Monster.EndMonster(fbb);
 
             Monster.StartTest4Vector(fbb, 2);
-            MyGame.Example.Test.CreateTest(fbb, (short)10, (byte)20);
-            MyGame.Example.Test.CreateTest(fbb, (short)30, (byte)40);
+            MyGame.Example.Test.CreateTest(fbb, (short)10, (sbyte)20);
+            MyGame.Example.Test.CreateTest(fbb, (short)30, (sbyte)40);
             var test4 = fbb.EndVector();
 
-            Monster.StartTestarrayofstringVector(fbb, 2); 
-            fbb.AddOffset(test2); 
-            fbb.AddOffset(test1); 
-            var testArrayOfString = fbb.EndVector(); 
+            Monster.StartTestarrayofstringVector(fbb, 2);
+            fbb.AddOffset(test2);
+            fbb.AddOffset(test1);
+            var testArrayOfString = fbb.EndVector();
 
 
             Monster.StartMonster(fbb);
             Monster.AddPos(fbb, Vec3.CreateVec3(fbb, 1.0f, 2.0f, 3.0f, 3.0,
-                                                     (byte)4, (short)5, (byte)6));
+                                                     (sbyte)4, (short)5, (sbyte)6));
             Monster.AddHp(fbb, (short)80);
             Monster.AddName(fbb, str);
             Monster.AddInventory(fbb, inv);
@@ -79,19 +79,19 @@ namespace FlatBuffers.Test
             fbb.Finish(mon);
 
             // Dump to output directory so we can inspect later, if needed
-            using (var ms= new MemoryStream(fbb.Data.Data, fbb.DataStart, fbb.Offset))
+            using (var ms = new MemoryStream(fbb.DataBuffer().Data, fbb.DataBuffer().position(), fbb.Offset()))
             {
                 var data = ms.ToArray();
                 File.WriteAllBytes(@"Resources/monsterdata_cstest.bin",data);
             }
 
             // Now assert the buffer
-            TestBuffer(fbb.Data, fbb.DataStart);
+            TestBuffer(fbb.DataBuffer());
         }
 
-        private void TestBuffer(ByteBuffer bb, int start)
+        private void TestBuffer(ByteBuffer bb)
         {
-            var monster = Monster.GetRootAsMonster(bb, start);
+            var monster = Monster.GetRootAsMonster(bb);
 
             Assert.AreEqual(80, monster.Hp());
             Assert.AreEqual(150, monster.Mana());
@@ -103,10 +103,10 @@ namespace FlatBuffers.Test
             Assert.AreEqual(3.0f, pos.Z());
 
             Assert.AreEqual(3.0f, pos.Test1());
-            Assert.AreEqual((byte)4, pos.Test2());
+            Assert.AreEqual((sbyte)4, pos.Test2());
             var t = pos.Test3();
             Assert.AreEqual((short)5, t.A());
-            Assert.AreEqual((byte)6, t.B());
+            Assert.AreEqual((sbyte)6, t.B());
 
             Assert.AreEqual((byte)Any.Monster, monster.TestType());
 
@@ -132,14 +132,14 @@ namespace FlatBuffers.Test
 
             Assert.AreEqual(2, monster.TestarrayofstringLength());
             Assert.AreEqual("test1", monster.Testarrayofstring(0));
-            Assert.AreEqual("test2", monster.Testarrayofstring(1)); 
+            Assert.AreEqual("test2", monster.Testarrayofstring(1));
         }
 
         public void CanReadCppGeneratedWireFile()
         {
             var data = File.ReadAllBytes(@"Resources/monsterdata_test.bin");
             var bb = new ByteBuffer(data);
-            TestBuffer(bb, 0);
+            TestBuffer(bb);
         }
     }
 }

tests/MyGame/Example/Any.cs

@@ -3,8 +3,6 @@
 namespace MyGame.Example
 {
 
-using FlatBuffers;
-
 public class Any
 {
   public static byte NONE = 0;

tests/MyGame/Example/Color.cs

@@ -3,13 +3,11 @@
 namespace MyGame.Example
 {
 
-using FlatBuffers;
-
 public class Color
 {
-  public static byte Red = 1;
-  public static byte Green = 2;
-  public static byte Blue = 8;
+  public static sbyte Red = 1;
+  public static sbyte Green = 2;
+  public static sbyte Blue = 8;
 };
 
 

tests/MyGame/Example/Monster.cs

-// automatically generated, do not modify
-
-namespace MyGame.Example
-{
-
-using FlatBuffers;
-
-public class Monster : Table {
-  public static Monster GetRootAsMonster(ByteBuffer _bb, int offset) { return (new Monster()).__init(_bb.GetInt(offset) + offset, _bb); }
-  public static bool MonsterBufferHasIdentifier(ByteBuffer _bb, int offset) { return __has_identifier(_bb, offset, "MONS"); }
-  public Monster __init(int _i, ByteBuffer _bb) { bb_pos = _i; bb = _bb; return this; }
-
-  public Vec3 Pos() { return Pos(new Vec3()); }
-  public Vec3 Pos(Vec3 obj) { int o = __offset(4); return o != 0 ? obj.__init(o + bb_pos, bb) : null; }
-  public short Mana() { int o = __offset(6); return o != 0 ? bb.GetShort(o + bb_pos) : (short)150; }
-  public short Hp() { int o = __offset(8); return o != 0 ? bb.GetShort(o + bb_pos) : (short)100; }
-  public string Name() { int o = __offset(10); return o != 0 ? __string(o + bb_pos) : null; }
-  public byte Inventory(int j) { int o = __offset(14); return o != 0 ? bb.Get(__vector(o) + j * 1) : (byte)0; }
-  public int InventoryLength() { int o = __offset(14); return o != 0 ? __vector_len(o) : 0; }
-  public byte Color() { int o = __offset(16); return o != 0 ? bb.Get(o + bb_pos) : (byte)8; }
-  public byte TestType() { int o = __offset(18); return o != 0 ? bb.Get(o + bb_pos) : (byte)0; }
-  public Table Test(Table obj) { int o = __offset(20); return o != 0 ? __union(obj, o) : null; }
-  public Test Test4(int j) { return Test4(new Test(), j); }
-  public Test Test4(Test obj, int j) { int o = __offset(22); return o != 0 ? obj.__init(__vector(o) + j * 4, bb) : null; }
-  public int Test4Length() { int o = __offset(22); return o != 0 ? __vector_len(o) : 0; }
-  public string Testarrayofstring(int j) { int o = __offset(24); return o != 0 ? __string(__vector(o) + j * 4) : null; }
-  public int TestarrayofstringLength() { int o = __offset(24); return o != 0 ? __vector_len(o) : 0; }
-  /* an example documentation comment: this will end up in the generated code
 multiline too
*/
-  public Monster Testarrayoftables(int j) { return Testarrayoftables(new Monster(), j); }
-  public Monster Testarrayoftables(Monster obj, int j) { int o = __offset(26); return o != 0 ? obj.__init(__indirect(__vector(o) + j * 4), bb) : null; }
-  public int TestarrayoftablesLength() { int o = __offset(26); return o != 0 ? __vector_len(o) : 0; }
-  public Monster Enemy() { return Enemy(new Monster()); }
-  public Monster Enemy(Monster obj) { int o = __offset(28); return o != 0 ? obj.__init(__indirect(o + bb_pos), bb) : null; }
-  public byte Testnestedflatbuffer(int j) { int o = __offset(30); return o != 0 ? bb.Get(__vector(o) + j * 1) : (byte)0; }
-  public int TestnestedflatbufferLength() { int o = __offset(30); return o != 0 ? __vector_len(o) : 0; }
-  public Monster Testempty() { return Testempty(new Monster()); }
-  public Monster Testempty(Monster obj) { int o = __offset(32); return o != 0 ? obj.__init(__indirect(o + bb_pos), bb) : null; }
-
-  public static void StartMonster(FlatBufferBuilder builder) { builder.StartObject(15); }
-  public static void AddPos(FlatBufferBuilder builder, int posOffset) { builder.AddStruct(0, posOffset, 0); }
-  public static void AddMana(FlatBufferBuilder builder, short mana) { builder.AddShort(1, mana, 150); }
-  public static void AddHp(FlatBufferBuilder builder, short hp) { builder.AddShort(2, hp, 100); }
-  public static void AddName(FlatBufferBuilder builder, int nameOffset) { builder.AddOffset(3, nameOffset, 0); }
-  public static void AddInventory(FlatBufferBuilder builder, int inventoryOffset) { builder.AddOffset(5, inventoryOffset, 0); }
-  public static void StartInventoryVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(1, numElems, 1); }
-  public static void AddColor(FlatBufferBuilder builder, byte color) { builder.AddByte(6, color, 8); }
-  public static void AddTestType(FlatBufferBuilder builder, byte testType) { builder.AddByte(7, testType, 0); }
-  public static void AddTest(FlatBufferBuilder builder, int testOffset) { builder.AddOffset(8, testOffset, 0); }
-  public static void AddTest4(FlatBufferBuilder builder, int test4Offset) { builder.AddOffset(9, test4Offset, 0); }
-  public static void StartTest4Vector(FlatBufferBuilder builder, int numElems) { builder.StartVector(4, numElems, 2); }
-  public static void AddTestarrayofstring(FlatBufferBuilder builder, int testarrayofstringOffset) { builder.AddOffset(10, testarrayofstringOffset, 0); }
-  public static void StartTestarrayofstringVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(4, numElems, 4); }
-  public static void AddTestarrayoftables(FlatBufferBuilder builder, int testarrayoftablesOffset) { builder.AddOffset(11, testarrayoftablesOffset, 0); }
-  public static void StartTestarrayoftablesVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(4, numElems, 4); }
-  public static void AddEnemy(FlatBufferBuilder builder, int enemyOffset) { builder.AddOffset(12, enemyOffset, 0); }
-  public static void AddTestnestedflatbuffer(FlatBufferBuilder builder, int testnestedflatbufferOffset) { builder.AddOffset(13, testnestedflatbufferOffset, 0); }
-  public static void StartTestnestedflatbufferVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(1, numElems, 1); }
-  public static void AddTestempty(FlatBufferBuilder builder, int testemptyOffset) { builder.AddOffset(14, testemptyOffset, 0); }
-  public static int EndMonster(FlatBufferBuilder builder) { return builder.EndObject(); }
-  public static void FinishMonsterBuffer(FlatBufferBuilder builder, int offset) { builder.Finish(offset, "MONS"); }
-};
-
-
-}
+// automatically generated, do not modify
+
+namespace MyGame.Example
+{
+
+using FlatBuffers;
+
+public class Monster : Table {
+  public static Monster GetRootAsMonster(ByteBuffer _bb) { return (new Monster()).__init(_bb.GetInt(_bb.position()) + _bb.position(), _bb); }
+  public static bool MonsterBufferHasIdentifier(ByteBuffer _bb) { return __has_identifier(_bb, "MONS"); }
+  public Monster __init(int _i, ByteBuffer _bb) { bb_pos = _i; bb = _bb; return this; }
+
+  public Vec3 Pos() { return Pos(new Vec3()); }
+  public Vec3 Pos(Vec3 obj) { int o = __offset(4); return o != 0 ? obj.__init(o + bb_pos, bb) : null; }
+  public short Mana() { int o = __offset(6); return o != 0 ? bb.GetShort(o + bb_pos) : (short)150; }
+  public short Hp() { int o = __offset(8); return o != 0 ? bb.GetShort(o + bb_pos) : (short)100; }
+  public string Name() { int o = __offset(10); return o != 0 ? __string(o + bb_pos) : null; }
+  public byte Inventory(int j) { int o = __offset(14); return o != 0 ? bb.Get(__vector(o) + j * 1) : (byte)0; }
+  public int InventoryLength() { int o = __offset(14); return o != 0 ? __vector_len(o) : 0; }
+  public sbyte Color() { int o = __offset(16); return o != 0 ? bb.GetSbyte(o + bb_pos) : (sbyte)8; }
+  public byte TestType() { int o = __offset(18); return o != 0 ? bb.Get(o + bb_pos) : (byte)0; }
+  public Table Test(Table obj) { int o = __offset(20); return o != 0 ? __union(obj, o) : null; }
+  public Test Test4(int j) { return Test4(new Test(), j); }
+  public Test Test4(Test obj, int j) { int o = __offset(22); return o != 0 ? obj.__init(__vector(o) + j * 4, bb) : null; }
+  public int Test4Length() { int o = __offset(22); return o != 0 ? __vector_len(o) : 0; }
+  public string Testarrayofstring(int j) { int o = __offset(24); return o != 0 ? __string(__vector(o) + j * 4) : null; }
+  public int TestarrayofstringLength() { int o = __offset(24); return o != 0 ? __vector_len(o) : 0; }
+  /// an example documentation comment: this will end up in the generated code multiline too
+  public Monster Testarrayoftables(int j) { return Testarrayoftables(new Monster(), j); }
+  public Monster Testarrayoftables(Monster obj, int j) { int o = __offset(26); return o != 0 ? obj.__init(__indirect(__vector(o) + j * 4), bb) : null; }
+  public int TestarrayoftablesLength() { int o = __offset(26); return o != 0 ? __vector_len(o) : 0; }
+  public Monster Enemy() { return Enemy(new Monster()); }
+  public Monster Enemy(Monster obj) { int o = __offset(28); return o != 0 ? obj.__init(__indirect(o + bb_pos), bb) : null; }
+  public byte Testnestedflatbuffer(int j) { int o = __offset(30); return o != 0 ? bb.Get(__vector(o) + j * 1) : (byte)0; }
+  public int TestnestedflatbufferLength() { int o = __offset(30); return o != 0 ? __vector_len(o) : 0; }
+  public Monster Testempty() { return Testempty(new Monster()); }
+  public Monster Testempty(Monster obj) { int o = __offset(32); return o != 0 ? obj.__init(__indirect(o + bb_pos), bb) : null; }
+
+  public static void StartMonster(FlatBufferBuilder builder) { builder.StartObject(15); }
+  public static void AddPos(FlatBufferBuilder builder, int posOffset) { builder.AddStruct(0, posOffset, 0); }
+  public static void AddMana(FlatBufferBuilder builder, short mana) { builder.AddShort(1, mana, 150); }
+  public static void AddHp(FlatBufferBuilder builder, short hp) { builder.AddShort(2, hp, 100); }
+  public static void AddName(FlatBufferBuilder builder, int nameOffset) { builder.AddOffset(3, nameOffset, 0); }
+  public static void AddInventory(FlatBufferBuilder builder, int inventoryOffset) { builder.AddOffset(5, inventoryOffset, 0); }
+  public static int CreateInventoryVector(FlatBufferBuilder builder, byte[] data) { builder.StartVector(1, data.Length, 1); for (int i = data.Length - 1; i >= 0; i--) builder.AddByte(data[i]); return builder.EndVector(); }
+  public static void StartInventoryVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(1, numElems, 1); }
+  public static void AddColor(FlatBufferBuilder builder, sbyte color) { builder.AddSbyte(6, color, 8); }
+  public static void AddTestType(FlatBufferBuilder builder, byte testType) { builder.AddByte(7, testType, 0); }
+  public static void AddTest(FlatBufferBuilder builder, int testOffset) { builder.AddOffset(8, testOffset, 0); }
+  public static void AddTest4(FlatBufferBuilder builder, int test4Offset) { builder.AddOffset(9, test4Offset, 0); }
+  public static void StartTest4Vector(FlatBufferBuilder builder, int numElems) { builder.StartVector(4, numElems, 2); }
+  public static void AddTestarrayofstring(FlatBufferBuilder builder, int testarrayofstringOffset) { builder.AddOffset(10, testarrayofstringOffset, 0); }
+  public static int CreateTestarrayofstringVector(FlatBufferBuilder builder, int[] data) { builder.StartVector(4, data.Length, 4); for (int i = data.Length - 1; i >= 0; i--) builder.AddOffset(data[i]); return builder.EndVector(); }
+  public static void StartTestarrayofstringVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(4, numElems, 4); }
+  public static void AddTestarrayoftables(FlatBufferBuilder builder, int testarrayoftablesOffset) { builder.AddOffset(11, testarrayoftablesOffset, 0); }
+  public static int CreateTestarrayoftablesVector(FlatBufferBuilder builder, int[] data) { builder.StartVector(4, data.Length, 4); for (int i = data.Length - 1; i >= 0; i--) builder.AddOffset(data[i]); return builder.EndVector(); }
+  public static void StartTestarrayoftablesVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(4, numElems, 4); }
+  public static void AddEnemy(FlatBufferBuilder builder, int enemyOffset) { builder.AddOffset(12, enemyOffset, 0); }
+  public static void AddTestnestedflatbuffer(FlatBufferBuilder builder, int testnestedflatbufferOffset) { builder.AddOffset(13, testnestedflatbufferOffset, 0); }
+  public static int CreateTestnestedflatbufferVector(FlatBufferBuilder builder, byte[] data) { builder.StartVector(1, data.Length, 1); for (int i = data.Length - 1; i >= 0; i--) builder.AddByte(data[i]); return builder.EndVector(); }
+  public static void StartTestnestedflatbufferVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(1, numElems, 1); }
+  public static void AddTestempty(FlatBufferBuilder builder, int testemptyOffset) { builder.AddOffset(14, testemptyOffset, 0); }
+  public static int EndMonster(FlatBufferBuilder builder) { return builder.EndObject(); }
+  public static void FinishMonsterBuffer(FlatBufferBuilder builder, int offset) { builder.Finish(offset, "MONS"); }
+};
+
+
+}

tests/MyGame/Example/Test.cs

@@ -9,14 +9,14 @@ public class Test : Struct {
   public Test __init(int _i, ByteBuffer _bb) { bb_pos = _i; bb = _bb; return this; }
 
   public short A() { return bb.GetShort(bb_pos + 0); }
-  public byte B() { return bb.Get(bb_pos + 2); }
+  public sbyte B() { return bb.GetSbyte(bb_pos + 2); }
 
-  public static int CreateTest(FlatBufferBuilder builder, short A, byte B) {
+  public static int CreateTest(FlatBufferBuilder builder, short A, sbyte B) {
     builder.Prep(2, 4);
     builder.Pad(1);
-    builder.PutByte(B);
+    builder.PutSbyte(B);
     builder.PutShort(A);
-    return builder.Offset;
+    return builder.Offset();
   }
 };
 

tests/MyGame/Example/Vec3.cs

@@ -12,25 +12,25 @@ public class Vec3 : Struct {
   public float Y() { return bb.GetFloat(bb_pos + 4); }
   public float Z() { return bb.GetFloat(bb_pos + 8); }
   public double Test1() { return bb.GetDouble(bb_pos + 16); }
-  public byte Test2() { return bb.Get(bb_pos + 24); }
+  public sbyte Test2() { return bb.GetSbyte(bb_pos + 24); }
   public Test Test3() { return Test3(new Test()); }
   public Test Test3(Test obj) { return obj.__init(bb_pos + 26, bb); }
 
-  public static int CreateVec3(FlatBufferBuilder builder, float X, float Y, float Z, double Test1, byte Test2, short Test_A, byte Test_B) {
+  public static int CreateVec3(FlatBufferBuilder builder, float X, float Y, float Z, double Test1, sbyte Test2, short Test_A, sbyte Test_B) {
     builder.Prep(16, 32);
     builder.Pad(2);
     builder.Prep(2, 4);
     builder.Pad(1);
-    builder.PutByte(Test_B);
+    builder.PutSbyte(Test_B);
     builder.PutShort(Test_A);
     builder.Pad(1);
-    builder.PutByte(Test2);
+    builder.PutSbyte(Test2);
     builder.PutDouble(Test1);
     builder.Pad(4);
     builder.PutFloat(Z);
     builder.PutFloat(Y);
     builder.PutFloat(X);
-    return builder.Offset;
+    return builder.Offset();
   }
 };
 

tests/monsterdata_test.json

@@ -36,5 +36,7 @@
   testarrayofstring: [
     "test1",
     "test2"
-  ]
+  ],
+  testempty: {
+  }
 }