| /* |
| * 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 { |
| |
| static TypedFloatConstantGenerator CSharpFloatGen("Double.", "Single.", "NaN", |
| "PositiveInfinity", |
| "NegativeInfinity"); |
| static CommentConfig comment_config = { |
| nullptr, |
| "///", |
| nullptr, |
| }; |
| |
| namespace csharp { |
| class CSharpGenerator : public BaseGenerator { |
| public: |
| CSharpGenerator(const Parser &parser, const std::string &path, |
| const std::string &file_name) |
| : BaseGenerator(parser, path, file_name, "", ".", "cs"), |
| cur_name_space_(nullptr) {} |
| |
| CSharpGenerator &operator=(const CSharpGenerator &); |
| |
| 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, parser_.opts); |
| if (parser_.opts.one_file) { |
| one_file_code += enumcode; |
| } else { |
| if (!SaveType(enum_def.name, *enum_def.defined_namespace, enumcode, |
| 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, parser_.opts); |
| if (parser_.opts.one_file) { |
| one_file_code += declcode; |
| } else { |
| if (!SaveType(struct_def.name, *struct_def.defined_namespace, declcode, |
| true)) |
| return false; |
| } |
| } |
| |
| if (parser_.opts.one_file) { |
| return SaveType(file_name_, *parser_.current_namespace_, one_file_code, |
| 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 = |
| "// <auto-generated>\n" |
| "// " + |
| std::string(FlatBuffersGeneratedWarning()) + |
| "\n" |
| "// </auto-generated>\n\n"; |
| |
| std::string namespace_name = FullNamespace(".", ns); |
| if (!namespace_name.empty()) { |
| code += "namespace " + namespace_name + "\n{\n\n"; |
| } |
| if (needs_includes) { |
| code += "using global::System;\n"; |
| code += "using global::System.Collections.Generic;\n"; |
| code += "using global::FlatBuffers;\n\n"; |
| } |
| code += classcode; |
| if (!namespace_name.empty()) { code += "\n}\n"; } |
| auto filename = NamespaceDir(ns) + defname + ".cs"; |
| return SaveFile(filename.c_str(), code, false); |
| } |
| |
| const Namespace *CurrentNameSpace() const { return cur_name_space_; } |
| |
| std::string GenTypeBasic(const Type &type, bool enableLangOverrides) const { |
| // clang-format off |
| static const char * const csharp_typename[] = { |
| #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, GTYPE, NTYPE, ...) \ |
| #NTYPE, |
| FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD) |
| #undef FLATBUFFERS_TD |
| }; |
| // clang-format on |
| |
| if (enableLangOverrides) { |
| if (IsEnum(type)) return WrapInNameSpace(*type.enum_def); |
| if (type.base_type == BASE_TYPE_STRUCT) { |
| return "Offset<" + WrapInNameSpace(*type.struct_def) + ">"; |
| } |
| } |
| |
| return csharp_typename[type.base_type]; |
| } |
| |
| inline std::string GenTypeBasic(const Type &type) const { |
| return GenTypeBasic(type, true); |
| } |
| |
| 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: return "TTable"; |
| default: return "Table"; |
| } |
| } |
| |
| std::string GenTypeGet(const Type &type) const { |
| return IsScalar(type.base_type) |
| ? GenTypeBasic(type) |
| : (IsArray(type) ? GenTypeGet(type.VectorType()) |
| : GenTypePointer(type)); |
| } |
| |
| std::string GenOffsetType(const StructDef &struct_def) const { |
| return "Offset<" + WrapInNameSpace(struct_def) + ">"; |
| } |
| |
| std::string GenOffsetConstruct(const StructDef &struct_def, |
| const std::string &variable_name) const { |
| return "new Offset<" + WrapInNameSpace(struct_def) + ">(" + variable_name + |
| ")"; |
| } |
| |
| // Casts necessary to correctly read serialized data |
| std::string DestinationCast(const Type &type) const { |
| if (IsSeries(type)) { |
| return DestinationCast(type.VectorType()); |
| } else { |
| if (IsEnum(type)) return "(" + WrapInNameSpace(*type.enum_def) + ")"; |
| } |
| 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. In C#, one cast |
| // directly cast an Enum to its underlying type, which is essential before |
| // putting it onto the buffer. |
| std::string SourceCast(const Type &type) const { |
| if (IsSeries(type)) { |
| return SourceCast(type.VectorType()); |
| } else { |
| if (IsEnum(type)) return "(" + GenTypeBasic(type, false) + ")"; |
| } |
| return ""; |
| } |
| |
| std::string SourceCastBasic(const Type &type) const { |
| return IsScalar(type.base_type) ? SourceCast(type) : ""; |
| } |
| |
| 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, |
| bool enableLangOverrides) const { |
| auto &value = field.value; |
| if (enableLangOverrides) { |
| // handles both enum case and vector of enum case |
| if (value.type.enum_def != nullptr && |
| value.type.base_type != BASE_TYPE_UNION) { |
| return GenEnumDefaultValue(field); |
| } |
| } |
| |
| auto longSuffix = ""; |
| switch (value.type.base_type) { |
| case BASE_TYPE_BOOL: return value.constant == "0" ? "false" : "true"; |
| case BASE_TYPE_ULONG: return value.constant; |
| case BASE_TYPE_UINT: |
| case BASE_TYPE_LONG: return value.constant + longSuffix; |
| default: |
| if (IsFloat(value.type.base_type)) |
| return CSharpFloatGen.GenFloatConstant(field); |
| else |
| return value.constant; |
| } |
| } |
| |
| std::string GenDefaultValue(const FieldDef &field) const { |
| return GenDefaultValue(field, true); |
| } |
| |
| std::string GenDefaultValueBasic(const FieldDef &field, |
| bool enableLangOverrides) const { |
| auto &value = field.value; |
| if (!IsScalar(value.type.base_type)) { |
| if (enableLangOverrides) { |
| switch (value.type.base_type) { |
| case BASE_TYPE_STRING: return "default(StringOffset)"; |
| case BASE_TYPE_STRUCT: |
| return "default(Offset<" + WrapInNameSpace(*value.type.struct_def) + |
| ">)"; |
| case BASE_TYPE_VECTOR: return "default(VectorOffset)"; |
| default: break; |
| } |
| } |
| return "0"; |
| } |
| return GenDefaultValue(field, enableLangOverrides); |
| } |
| |
| std::string GenDefaultValueBasic(const FieldDef &field) const { |
| return GenDefaultValueBasic(field, true); |
| } |
| |
| void GenEnum(EnumDef &enum_def, std::string *code_ptr, |
| const IDLOptions &opts) 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 (opts.cs_gen_json_serializer && opts.generate_object_based_api) { |
| code += |
| "[Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters." |
| "StringEnumConverter))]\n"; |
| } |
| // In C# this indicates enumeration values can be treated as bit flags. |
| if (enum_def.attributes.Lookup("bit_flags")) { |
| code += "[System.FlagsAttribute]\n"; |
| } |
| if (enum_def.attributes.Lookup("private")) { |
| code += "internal "; |
| } else { |
| code += "public "; |
| } |
| code += "enum " + enum_def.name; |
| code += " : " + GenTypeBasic(enum_def.underlying_type, false); |
| code += "\n{\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 += " "; |
| code += ev.name + " = "; |
| code += enum_def.ToString(ev); |
| code += ",\n"; |
| } |
| // Close the class |
| code += "};\n\n"; |
| |
| if (opts.generate_object_based_api) { |
| GenEnum_ObjectAPI(enum_def, code_ptr, opts); |
| } |
| } |
| |
| bool HasUnionStringValue(const EnumDef &enum_def) const { |
| if (!enum_def.is_union) return false; |
| for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) { |
| auto &val = **it; |
| if (val.union_type.base_type == BASE_TYPE_STRING) { return true; } |
| } |
| return false; |
| } |
| |
| // 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 "__p.__string"; |
| case BASE_TYPE_STRUCT: return "__p.__struct"; |
| case BASE_TYPE_UNION: return "__p.__union"; |
| case BASE_TYPE_VECTOR: return GenGetter(type.VectorType()); |
| case BASE_TYPE_ARRAY: return GenGetter(type.VectorType()); |
| default: { |
| std::string getter = "__p.bb.Get"; |
| if (type.base_type == BASE_TYPE_BOOL) { |
| getter = "0!=" + getter; |
| } else if (GenTypeBasic(type, false) != "byte") { |
| getter += MakeCamel(GenTypeBasic(type, false)); |
| } |
| 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 = ""; |
| auto dest_cast = DestinationCast(type); |
| auto getter = data_buffer + ".Get"; |
| if (GenTypeBasic(type, false) != "byte") { |
| getter += MakeCamel(GenTypeBasic(type, false)); |
| } |
| 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 = "__p.bb.Put"; |
| if (GenTypeBasic(type, false) != "byte" && |
| type.base_type != BASE_TYPE_BOOL) { |
| setter += MakeCamel(GenTypeBasic(type, false)); |
| } |
| 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, false)) |
| : (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() : field_type; |
| 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); |
| if (array_cnt > 0) { |
| code += "["; |
| for (size_t i = 1; i < array_cnt; i++) code += ","; |
| code += "]"; |
| } |
| code += " "; |
| code += nameprefix; |
| code += MakeCamel(field.name, true); |
| } |
| } |
| } |
| |
| // 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, true); |
| code += argname; |
| size_t array_cnt = index + (IsArray(field_type) ? 1 : 0); |
| if (array_cnt > 0) { |
| code += "["; |
| for (size_t i = 0; in_array && i < array_cnt; i++) { |
| code += "_idx" + NumToString(i) + "-1"; |
| if (i != (array_cnt - 1)) code += ","; |
| } |
| code += "]"; |
| } |
| code += ");\n"; |
| } |
| if (IsArray(field_type)) { code += indent + " }\n"; } |
| } |
| } |
| } |
| std::string GenOffsetGetter(flatbuffers::FieldDef *key_field, |
| const char *num = nullptr) const { |
| std::string key_offset = |
| "Table.__offset(" + NumToString(key_field->value.offset) + ", "; |
| if (num) { |
| key_offset += num; |
| key_offset += ".Value, builder.DataBuffer)"; |
| } else { |
| key_offset += "bb.Length"; |
| key_offset += " - tableOffset, bb)"; |
| } |
| return key_offset; |
| } |
| |
| std::string GenLookupKeyGetter(flatbuffers::FieldDef *key_field) const { |
| std::string key_getter = " "; |
| key_getter += "int tableOffset = Table."; |
| key_getter += "__indirect(vectorLocation + 4 * (start + middle)"; |
| key_getter += ", bb);\n "; |
| if (key_field->value.type.base_type == BASE_TYPE_STRING) { |
| key_getter += "int comp = Table."; |
| key_getter += "CompareStrings("; |
| key_getter += GenOffsetGetter(key_field); |
| key_getter += ", byteKey, bb);\n"; |
| } else { |
| auto get_val = GenGetterForLookupByKey(key_field, "bb"); |
| key_getter += "int comp = " + get_val + ".CompareTo(key);\n"; |
| } |
| return key_getter; |
| } |
| |
| std::string GenKeyGetter(flatbuffers::FieldDef *key_field) const { |
| std::string key_getter = ""; |
| auto data_buffer = "builder.DataBuffer"; |
| if (key_field->value.type.base_type == BASE_TYPE_STRING) { |
| key_getter += "Table.CompareStrings("; |
| key_getter += GenOffsetGetter(key_field, "o1") + ", "; |
| key_getter += GenOffsetGetter(key_field, "o2") + ", " + data_buffer + ")"; |
| } else { |
| auto field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o1"); |
| key_getter += field_getter; |
| field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o2"); |
| key_getter += ".CompareTo(" + field_getter + ")"; |
| } |
| return key_getter; |
| } |
| |
| void GenStruct(StructDef &struct_def, std::string *code_ptr, |
| const IDLOptions &opts) 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 (struct_def.attributes.Lookup("private")) { |
| code += "internal "; |
| } else { |
| code += "public "; |
| } |
| if (struct_def.attributes.Lookup("csharp_partial")) { |
| // generate a partial class for this C# struct/table |
| code += "partial "; |
| } |
| code += "struct " + struct_def.name; |
| code += " : IFlatbufferObject"; |
| code += "\n{\n"; |
| code += " private "; |
| code += struct_def.fixed ? "Struct" : "Table"; |
| code += " __p;\n"; |
| |
| code += " public ByteBuffer ByteBuffer { get { return __p.bb; } }\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 += " FlatBufferConstants."; |
| 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 += "return (obj.__assign(_bb.GetInt(_bb.Position"; |
| code += ") + _bb.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 += "bool " + struct_def.name; |
| code += "BufferHasIdentifier(ByteBuffer _bb) { return "; |
| code += "Table.__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 += "__p = new "; |
| code += struct_def.fixed ? "Struct" : "Table"; |
| code += "(_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 = GenTypeGet(field.value.type); |
| std::string conditional_cast = ""; |
| std::string optional = ""; |
| if (!struct_def.fixed && |
| (field.value.type.base_type == BASE_TYPE_STRUCT || |
| field.value.type.base_type == BASE_TYPE_UNION || |
| (field.value.type.base_type == BASE_TYPE_VECTOR && |
| (field.value.type.element == BASE_TYPE_STRUCT || |
| field.value.type.element == BASE_TYPE_UNION)))) { |
| optional = "?"; |
| conditional_cast = "(" + type_name_dest + optional + ")"; |
| } |
| std::string dest_mask = ""; |
| std::string dest_cast = DestinationCast(field.value.type); |
| std::string src_cast = SourceCast(field.value.type); |
| std::string method_start = " public " + type_name_dest + optional + " " + |
| MakeCamel(field.name, true); |
| std::string obj = "(new " + type_name + "())"; |
| |
| // 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 = __p.__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) { |
| } else if (field.value.type.base_type == BASE_TYPE_VECTOR && |
| field.value.type.element == BASE_TYPE_STRUCT) { |
| } else if (field.value.type.base_type == BASE_TYPE_UNION || |
| (field.value.type.base_type == BASE_TYPE_VECTOR && |
| field.value.type.VectorType().base_type == BASE_TYPE_UNION)) { |
| method_start += "<TTable>"; |
| type_name = type_name_dest; |
| } |
| std::string getter = dest_cast + GenGetter(field.value.type); |
| code += method_start; |
| std::string default_cast = ""; |
| // only create default casts for c# scalars or vectors of scalars |
| if ((IsScalar(field.value.type.base_type) || |
| (field.value.type.base_type == BASE_TYPE_VECTOR && |
| IsScalar(field.value.type.element)))) { |
| // For scalars, default value will be returned by GetDefaultValue(). |
| // If the scalar is an enum, GetDefaultValue() returns an actual c# enum |
| // that doesn't need to be casted. However, default values for enum |
| // elements of vectors are integer literals ("0") and are still casted |
| // for clarity. |
| if (field.value.type.enum_def == nullptr || |
| field.value.type.base_type == BASE_TYPE_VECTOR) { |
| default_cast = "(" + type_name_dest + ")"; |
| } |
| } |
| std::string member_suffix = "; "; |
| if (IsScalar(field.value.type.base_type)) { |
| code += " { get"; |
| member_suffix += "} "; |
| if (struct_def.fixed) { |
| code += " { return " + getter; |
| code += "(__p.bb_pos + "; |
| code += NumToString(field.value.offset) + ")"; |
| code += dest_mask; |
| } else { |
| code += offset_prefix + getter; |
| code += "(o + __p.bb_pos)" + dest_mask; |
| code += " : " + default_cast; |
| code += GenDefaultValue(field); |
| } |
| } else { |
| switch (field.value.type.base_type) { |
| case BASE_TYPE_STRUCT: |
| code += " { get"; |
| member_suffix += "} "; |
| if (struct_def.fixed) { |
| code += " { return " + obj + ".__assign(" + "__p."; |
| code += "bb_pos + " + NumToString(field.value.offset) + ", "; |
| code += "__p.bb)"; |
| } else { |
| code += offset_prefix + conditional_cast; |
| code += obj + ".__assign("; |
| code += field.value.type.struct_def->fixed |
| ? "o + __p.bb_pos" |
| : "__p.__indirect(o + __p.bb_pos)"; |
| code += ", __p.bb) : null"; |
| } |
| break; |
| case BASE_TYPE_STRING: |
| code += " { get"; |
| member_suffix += "} "; |
| code += offset_prefix + getter + "(o + " + "__p."; |
| code += "bb_pos) : null"; |
| break; |
| case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_VECTOR: { |
| auto vectortype = field.value.type.VectorType(); |
| if (vectortype.base_type == BASE_TYPE_UNION) { |
| conditional_cast = "(TTable?)"; |
| getter += "<TTable>"; |
| } |
| code += "("; |
| if (vectortype.base_type == BASE_TYPE_STRUCT) { |
| getter = obj + ".__assign"; |
| } else if (vectortype.base_type == BASE_TYPE_UNION) { |
| } |
| code += "int j)"; |
| const auto body = offset_prefix + conditional_cast + getter + "("; |
| if (vectortype.base_type == BASE_TYPE_UNION) { |
| code += " where TTable : struct, IFlatbufferObject" + body; |
| } else { |
| code += body; |
| } |
| std::string index = "__p."; |
| 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 |
| : "__p.__indirect(" + index + ")"; |
| code += ", __p.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"); |
| } |
| if (vectortype.base_type == BASE_TYPE_UNION && |
| HasUnionStringValue(*vectortype.enum_def)) { |
| code += member_suffix; |
| code += "}\n"; |
| code += " public string " + MakeCamel(field.name, true) + |
| "AsString(int j)"; |
| code += offset_prefix + GenGetter(Type(BASE_TYPE_STRING)); |
| code += "(" + index + ") : null"; |
| } |
| break; |
| } |
| case BASE_TYPE_UNION: |
| code += "() where TTable : struct, IFlatbufferObject"; |
| code += offset_prefix + "(TTable?)" + getter; |
| code += "<TTable>(o + __p.bb_pos) : null"; |
| if (HasUnionStringValue(*field.value.type.enum_def)) { |
| code += member_suffix; |
| code += "}\n"; |
| code += " public string " + MakeCamel(field.name, true) + |
| "AsString()"; |
| code += offset_prefix + GenGetter(Type(BASE_TYPE_STRING)); |
| code += "(o + __p.bb_pos) : null"; |
| } |
| break; |
| default: FLATBUFFERS_ASSERT(0); |
| } |
| } |
| code += member_suffix; |
| code += "}\n"; |
| if (field.value.type.base_type == BASE_TYPE_VECTOR) { |
| code += " public int " + MakeCamel(field.name, true); |
| code += "Length"; |
| code += " { get"; |
| code += offset_prefix; |
| code += "__p.__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, true) + "ByKey("; |
| code += GenTypeGet(key_field.value.type) + " key)"; |
| code += offset_prefix; |
| code += qualified_name + ".__lookup_by_key("; |
| code += "__p.__vector(o), key, "; |
| code += "__p.bb) : null; "; |
| code += "}\n"; |
| break; |
| } |
| } |
| } |
| } |
| // Generate a ByteBuffer accessor for strings & vectors of scalars. |
| if ((field.value.type.base_type == BASE_TYPE_VECTOR && |
| IsScalar(field.value.type.VectorType().base_type)) || |
| field.value.type.base_type == BASE_TYPE_STRING) { |
| code += "#if ENABLE_SPAN_T\n"; |
| code += " public Span<" + GenTypeBasic(field.value.type.VectorType()) + |
| "> Get"; |
| code += MakeCamel(field.name, true); |
| code += "Bytes() { return "; |
| code += "__p.__vector_as_span<" + |
| GenTypeBasic(field.value.type.VectorType()) + ">("; |
| code += NumToString(field.value.offset); |
| code += |
| ", " + NumToString(SizeOf(field.value.type.VectorType().base_type)); |
| code += "); }\n"; |
| code += "#else\n"; |
| code += " public ArraySegment<byte>? Get"; |
| code += MakeCamel(field.name, true); |
| code += "Bytes() { return "; |
| code += "__p.__vector_as_arraysegment("; |
| code += NumToString(field.value.offset); |
| code += "); }\n"; |
| code += "#endif\n"; |
| |
| // For direct blockcopying the data into a typed array |
| code += " public "; |
| code += GenTypeBasic(field.value.type.VectorType()); |
| code += "[] Get"; |
| code += MakeCamel(field.name, true); |
| code += "Array() { "; |
| if (IsEnum(field.value.type.VectorType())) { |
| // Since __vector_as_array does not work for enum types, |
| // fill array using an explicit loop. |
| code += "int o = __p.__offset("; |
| code += NumToString(field.value.offset); |
| code += "); if (o == 0) return null; int p = "; |
| code += "__p.__vector(o); int l = "; |
| code += "__p.__vector_len(o); "; |
| code += GenTypeBasic(field.value.type.VectorType()); |
| code += "[] a = new "; |
| code += GenTypeBasic(field.value.type.VectorType()); |
| code += "[l]; for (int i = 0; i < l; i++) { a[i] = " + getter; |
| code += "(p + i * "; |
| code += NumToString(InlineSize(field.value.type.VectorType())); |
| code += "); } return a;"; |
| } else { |
| code += "return "; |
| code += "__p.__vector_as_array<"; |
| code += GenTypeBasic(field.value.type.VectorType()); |
| code += ">("; |
| code += NumToString(field.value.offset); |
| code += ");"; |
| } |
| 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, true) + "As" + field.nested_flatbuffer->name; |
| auto get_nested_method_name = nested_method_name; |
| get_nested_method_name = "Get" + nested_method_name; |
| conditional_cast = "(" + nested_type_name + "?)"; |
| obj = "(new " + nested_type_name + "())"; |
| code += " public " + nested_type_name + "? "; |
| code += get_nested_method_name + "("; |
| code += ") { int o = __p.__offset("; |
| code += NumToString(field.value.offset) + "); "; |
| code += "return o != 0 ? " + conditional_cast + obj + ".__assign("; |
| code += "__p."; |
| code += "__indirect(__p.__vector(o)), "; |
| code += "__p.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", true); |
| // A vector mutator also needs the index of the vector element it should |
| // mutate. |
| auto mutator_params = (is_series ? "(int j, " : "(") + |
| GenTypeGet(underlying_type) + " " + field.name + |
| ") { "; |
| auto setter_index = |
| is_series |
| ? "__p." + |
| (IsArray(field.value.type) |
| ? "bb_pos + " + NumToString(field.value.offset) |
| : "__vector(o)") + |
| +" + j * " + NumToString(InlineSize(underlying_type)) |
| : (struct_def.fixed |
| ? "__p.bb_pos + " + NumToString(field.value.offset) |
| : "o + __p.bb_pos"); |
| if (IsScalar(underlying_type.base_type) && !IsUnion(field.value.type)) { |
| code += " public "; |
| code += struct_def.fixed ? "void " : "bool "; |
| 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 = __p.__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"; |
| auto struct_has_create = false; |
| std::set<flatbuffers::FieldDef *> field_has_create_set; |
| flatbuffers::FieldDef *key_field = nullptr; |
| if (struct_def.fixed) { |
| struct_has_create = true; |
| // create a struct constructor function |
| code += " public static " + GenOffsetType(struct_def) + " "; |
| code += "Create"; |
| code += struct_def.name + "(FlatBufferBuilder builder"; |
| GenStructArgs(struct_def, code_ptr, ""); |
| code += ") {\n"; |
| GenStructBody(struct_def, code_ptr, ""); |
| code += " return "; |
| code += GenOffsetConstruct(struct_def, "builder.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) { |
| struct_has_create = true; |
| // Generate a table constructor of the form: |
| // public static int createName(FlatBufferBuilder builder, args...) |
| code += " public static " + GenOffsetType(struct_def) + " "; |
| 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(field.value.type); |
| code += " "; |
| code += field.name; |
| if (!IsScalar(field.value.type.base_type)) code += "Offset"; |
| |
| code += " = "; |
| code += GenDefaultValueBasic(field); |
| } |
| 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(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 += NumToString(it - struct_def.fields.vec.begin()) + ", "; |
| code += SourceCastBasic(field.value.type); |
| code += argname; |
| if (!IsScalar(field.value.type.base_type) && |
| field.value.type.base_type != BASE_TYPE_UNION) { |
| code += ".Value"; |
| } |
| code += ", "; |
| code += GenDefaultValue(field, false); |
| code += "); }\n"; |
| if (field.value.type.base_type == BASE_TYPE_VECTOR) { |
| auto vector_type = field.value.type.VectorType(); |
| auto alignment = InlineAlignment(vector_type); |
| auto elem_size = InlineSize(vector_type); |
| if (!IsStruct(vector_type)) { |
| field_has_create_set.insert(&field); |
| code += " public static VectorOffset "; |
| 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); |
| code += "data[i]"; |
| if ((vector_type.base_type == BASE_TYPE_STRUCT || |
| vector_type.base_type == BASE_TYPE_STRING)) |
| code += ".Value"; |
| code += "); return "; |
| code += "builder.EndVector(); }\n"; |
| |
| code += " public static VectorOffset "; |
| code += "Create"; |
| code += MakeCamel(field.name); |
| code += "VectorBlock(FlatBufferBuilder builder, "; |
| code += GenTypeBasic(vector_type) + "[] data) "; |
| code += "{ builder.StartVector("; |
| code += NumToString(elem_size); |
| code += ", data.Length, "; |
| code += NumToString(alignment); |
| code += "); builder.Add(data); return 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(struct_def) + " "; |
| 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(struct_def, "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(struct_def); |
| code += " offset) {"; |
| code += " builder.Finish" + size_prefix[i] + "(offset"; |
| code += ".Value"; |
| |
| 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 public static VectorOffset "; |
| code += "CreateSortedVectorOf" + struct_def.name; |
| code += "(FlatBufferBuilder builder, "; |
| code += "Offset<" + struct_def.name + ">"; |
| code += "[] offsets) {\n"; |
| code += " Array.Sort(offsets, (Offset<" + struct_def.name + |
| "> o1, Offset<" + struct_def.name + "> o2) => " + |
| GenKeyGetter(key_field); |
| code += ");\n"; |
| code += " return builder.CreateVectorOfTables(offsets);\n }\n"; |
| |
| code += "\n public static " + struct_def.name + "?"; |
| code += " __lookup_by_key("; |
| code += "int vectorLocation, "; |
| code += GenTypeGet(key_field->value.type); |
| code += " key, ByteBuffer bb) {\n"; |
| if (key_field->value.type.base_type == BASE_TYPE_STRING) { |
| code += " byte[] byteKey = "; |
| code += "System.Text.Encoding.UTF8.GetBytes(key);\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 += "new " + struct_def.name + "()"; |
| code += ".__assign(tableOffset, bb);\n"; |
| code += " }\n }\n"; |
| code += " return null;\n"; |
| code += " }\n"; |
| } |
| |
| if (opts.generate_object_based_api) { |
| GenPackUnPack_ObjectAPI(struct_def, code_ptr, opts, struct_has_create, |
| field_has_create_set); |
| } |
| code += "};\n\n"; |
| |
| if (opts.generate_object_based_api) { |
| GenStruct_ObjectAPI(struct_def, code_ptr, opts); |
| } |
| } |
| |
| 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 struct Vector : BaseVector\n{\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("; |
| code += struct_def.fixed ? "__p.__element(j)" |
| : "__p.__indirect(__p.__element(j), bb)"; |
| code += ", __p.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 += GenTypeGet(key_field.value.type) + " key) { "; |
| code += " return __lookup_by_key(null, "; |
| code += "__p.__vector(), key, "; |
| code += "__p.bb); "; |
| code += "}\n"; |
| code += method_indent + nullable_annotation; |
| code += "public " + type_name + "?" + " "; |
| code += "GetByKey("; |
| code += type_name + "? obj, "; |
| code += GenTypeGet(key_field.value.type) + " key) { "; |
| code += " return __lookup_by_key(obj, "; |
| code += "__p.__vector(), key, "; |
| code += "__p.bb); "; |
| code += "}\n"; |
| break; |
| } |
| } |
| } |
| code += " }\n"; |
| } |
| |
| void GenEnum_ObjectAPI(EnumDef &enum_def, std::string *code_ptr, |
| const IDLOptions &opts) const { |
| auto &code = *code_ptr; |
| if (enum_def.generated) return; |
| if (!enum_def.is_union) return; |
| if (enum_def.attributes.Lookup("private")) { |
| code += "internal "; |
| } else { |
| code += "public "; |
| } |
| auto union_name = enum_def.name + "Union"; |
| code += "class " + union_name + " {\n"; |
| // Type |
| code += " public " + enum_def.name + " Type { get; set; }\n"; |
| // Value |
| code += " public object Value { get; set; }\n"; |
| code += "\n"; |
| // Constructor |
| code += " public " + union_name + "() {\n"; |
| code += " this.Type = " + enum_def.name + "." + |
| enum_def.Vals()[0]->name + ";\n"; |
| code += " this.Value = null;\n"; |
| code += " }\n\n"; |
| // As<T> |
| code += " public T As<T>() where T : class { return this.Value as T; }\n"; |
| // As |
| for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) { |
| auto &ev = **it; |
| if (ev.union_type.base_type == BASE_TYPE_NONE) continue; |
| auto type_name = GenTypeGet_ObjectAPI(ev.union_type, opts); |
| if (ev.union_type.base_type == BASE_TYPE_STRUCT && |
| ev.union_type.struct_def->attributes.Lookup("private")) { |
| code += " internal "; |
| } else { |
| code += " public "; |
| } |
| code += type_name + " As" + ev.name + "() { return this.As<" + type_name + |
| ">(); }\n"; |
| } |
| code += "\n"; |
| // Pack() |
| code += " public static int Pack(FlatBuffers.FlatBufferBuilder builder, " + |
| union_name + " _o) {\n"; |
| code += " switch (_o.Type) {\n"; |
| for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) { |
| auto &ev = **it; |
| if (ev.union_type.base_type == BASE_TYPE_NONE) { |
| code += " default: return 0;\n"; |
| } else { |
| code += " case " + enum_def.name + "." + ev.name + ": return "; |
| if (ev.union_type.base_type == BASE_TYPE_STRING) { |
| code += "builder.CreateString(_o.As" + ev.name + "()).Value;\n"; |
| } else { |
| code += GenTypeGet(ev.union_type) + ".Pack(builder, _o.As" + ev.name + |
| "()).Value;\n"; |
| } |
| } |
| } |
| code += " }\n"; |
| code += " }\n"; |
| code += "}\n\n"; |
| // JsonConverter |
| if (opts.cs_gen_json_serializer) { |
| if (enum_def.attributes.Lookup("private")) { |
| code += "internal "; |
| } else { |
| code += "public "; |
| } |
| code += "class " + union_name + |
| "_JsonConverter : Newtonsoft.Json.JsonConverter {\n"; |
| code += " public override bool CanConvert(System.Type objectType) {\n"; |
| code += " return objectType == typeof(" + union_name + |
| ") || objectType == typeof(System.Collections.Generic.List<" + |
| union_name + ">);\n"; |
| code += " }\n"; |
| code += |
| " public override void WriteJson(Newtonsoft.Json.JsonWriter writer, " |
| "object value, " |
| "Newtonsoft.Json.JsonSerializer serializer) {\n"; |
| code += " var _olist = value as System.Collections.Generic.List<" + |
| union_name + ">;\n"; |
| code += " if (_olist != null) {\n"; |
| code += " writer.WriteStartArray();\n"; |
| code += |
| " foreach (var _o in _olist) { this.WriteJson(writer, _o, " |
| "serializer); }\n"; |
| code += " writer.WriteEndArray();\n"; |
| code += " } else {\n"; |
| code += " this.WriteJson(writer, value as " + union_name + |
| ", serializer);\n"; |
| code += " }\n"; |
| code += " }\n"; |
| code += " public void WriteJson(Newtonsoft.Json.JsonWriter writer, " + |
| union_name + |
| " _o, " |
| "Newtonsoft.Json.JsonSerializer serializer) {\n"; |
| code += " if (_o == null) return;\n"; |
| code += " serializer.Serialize(writer, _o.Value);\n"; |
| code += " }\n"; |
| code += |
| " public override object ReadJson(Newtonsoft.Json.JsonReader " |
| "reader, " |
| "System.Type objectType, " |
| "object existingValue, Newtonsoft.Json.JsonSerializer serializer) " |
| "{\n"; |
| code += |
| " var _olist = existingValue as System.Collections.Generic.List<" + |
| union_name + ">;\n"; |
| code += " if (_olist != null) {\n"; |
| code += " for (var _j = 0; _j < _olist.Count; ++_j) {\n"; |
| code += " reader.Read();\n"; |
| code += |
| " _olist[_j] = this.ReadJson(reader, _olist[_j], " |
| "serializer);\n"; |
| code += " }\n"; |
| code += " reader.Read();\n"; |
| code += " return _olist;\n"; |
| code += " } else {\n"; |
| code += " return this.ReadJson(reader, existingValue as " + |
| union_name + ", serializer);\n"; |
| code += " }\n"; |
| code += " }\n"; |
| code += " public " + union_name + |
| " ReadJson(Newtonsoft.Json.JsonReader reader, " + union_name + |
| " _o, Newtonsoft.Json.JsonSerializer serializer) {\n"; |
| code += " if (_o == null) return null;\n"; |
| code += " switch (_o.Type) {\n"; |
| for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); |
| ++it) { |
| auto &ev = **it; |
| if (ev.union_type.base_type == BASE_TYPE_NONE) { |
| code += " default: break;\n"; |
| } else { |
| auto type_name = GenTypeGet_ObjectAPI(ev.union_type, opts); |
| code += " case " + enum_def.name + "." + ev.name + |
| ": _o.Value = serializer.Deserialize<" + type_name + |
| ">(reader); break;\n"; |
| } |
| } |
| code += " }\n"; |
| code += " return _o;\n"; |
| code += " }\n"; |
| code += "}\n\n"; |
| } |
| } |
| |
| std::string GenTypeName_ObjectAPI(const std::string &name, |
| const IDLOptions &opts) const { |
| return opts.object_prefix + name + opts.object_suffix; |
| } |
| |
| void GenUnionUnPack_ObjectAPI(const EnumDef &enum_def, std::string *code_ptr, |
| const std::string &camel_name, |
| bool is_vector) const { |
| auto &code = *code_ptr; |
| std::string varialbe_name = "_o." + camel_name; |
| std::string type_suffix = ""; |
| std::string func_suffix = "()"; |
| std::string indent = " "; |
| if (is_vector) { |
| varialbe_name = "_o_" + camel_name; |
| type_suffix = "(_j)"; |
| func_suffix = "(_j)"; |
| indent = " "; |
| } |
| if (is_vector) { |
| code += indent + "var " + varialbe_name + " = new "; |
| } else { |
| code += indent + varialbe_name + " = new "; |
| } |
| code += WrapInNameSpace(enum_def) + "Union();\n"; |
| code += indent + varialbe_name + ".Type = this." + camel_name + "Type" + |
| type_suffix + ";\n"; |
| code += |
| indent + "switch (this." + camel_name + "Type" + type_suffix + ") {\n"; |
| for (auto eit = enum_def.Vals().begin(); eit != enum_def.Vals().end(); |
| ++eit) { |
| auto &ev = **eit; |
| if (ev.union_type.base_type == BASE_TYPE_NONE) { |
| code += indent + " default: break;\n"; |
| } else { |
| code += indent + " case " + WrapInNameSpace(enum_def) + "." + ev.name + |
| ":\n"; |
| code += indent + " " + varialbe_name + ".Value = this." + camel_name; |
| if (ev.union_type.base_type == BASE_TYPE_STRING) { |
| code += "AsString" + func_suffix + ";\n"; |
| } else { |
| code += "<" + GenTypeGet(ev.union_type) + ">" + func_suffix; |
| code += ".HasValue ? this." + camel_name; |
| code += "<" + GenTypeGet(ev.union_type) + ">" + func_suffix + |
| ".Value.UnPack() : null;\n"; |
| } |
| code += indent + " break;\n"; |
| } |
| } |
| code += indent + "}\n"; |
| if (is_vector) { |
| code += indent + "_o." + camel_name + ".Add(" + varialbe_name + ");\n"; |
| } |
| } |
| |
| void GenPackUnPack_ObjectAPI( |
| StructDef &struct_def, std::string *code_ptr, const IDLOptions &opts, |
| bool struct_has_create, |
| const std::set<FieldDef *> &field_has_create) const { |
| auto &code = *code_ptr; |
| auto struct_name = GenTypeName_ObjectAPI(struct_def.name, opts); |
| // UnPack() |
| code += " public " + struct_name + " UnPack() {\n"; |
| code += " var _o = new " + struct_name + "();\n"; |
| code += " this.UnPackTo(_o);\n"; |
| code += " return _o;\n"; |
| code += " }\n"; |
| // UnPackTo() |
| code += " public void UnPackTo(" + struct_name + " _o) {\n"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| auto camel_name = MakeCamel(field.name); |
| auto start = " _o." + camel_name + " = "; |
| switch (field.value.type.base_type) { |
| case BASE_TYPE_STRUCT: { |
| auto fixed = struct_def.fixed && field.value.type.struct_def->fixed; |
| if (fixed) { |
| code += start + "this." + camel_name + ".UnPack();\n"; |
| } else { |
| code += start + "this." + camel_name + ".HasValue ? this." + |
| camel_name + ".Value.UnPack() : null;\n"; |
| } |
| break; |
| } |
| case BASE_TYPE_ARRAY: { |
| auto type_name = GenTypeGet_ObjectAPI(field.value.type, opts); |
| auto length_str = NumToString(field.value.type.fixed_length); |
| auto unpack_method = field.value.type.struct_def == nullptr |
| ? "" |
| : field.value.type.struct_def->fixed |
| ? ".UnPack()" |
| : "?.UnPack()"; |
| code += start + "new " + type_name.substr(0, type_name.length() - 1) + |
| length_str + "];\n"; |
| code += " for (var _j = 0; _j < " + length_str + "; ++_j) { _o." + |
| camel_name + "[_j] = this." + camel_name + "(_j)" + |
| unpack_method + "; }\n"; |
| break; |
| } |
| case BASE_TYPE_VECTOR: |
| if (field.value.type.element == BASE_TYPE_UNION) { |
| code += start + "new " + |
| GenTypeGet_ObjectAPI(field.value.type, opts) + "();\n"; |
| code += " for (var _j = 0; _j < this." + camel_name + |
| "Length; ++_j) {\n"; |
| GenUnionUnPack_ObjectAPI(*field.value.type.enum_def, code_ptr, |
| camel_name, true); |
| code += " }\n"; |
| } else if (field.value.type.element != BASE_TYPE_UTYPE) { |
| auto fixed = field.value.type.struct_def == nullptr; |
| code += start + "new " + |
| GenTypeGet_ObjectAPI(field.value.type, opts) + "();\n"; |
| code += " for (var _j = 0; _j < this." + camel_name + |
| "Length; ++_j) {"; |
| code += "_o." + camel_name + ".Add("; |
| if (fixed) { |
| code += "this." + camel_name + "(_j)"; |
| } else { |
| code += "this." + camel_name + "(_j).HasValue ? this." + |
| camel_name + "(_j).Value.UnPack() : null"; |
| } |
| code += ");}\n"; |
| } |
| break; |
| case BASE_TYPE_UTYPE: break; |
| case BASE_TYPE_UNION: { |
| GenUnionUnPack_ObjectAPI(*field.value.type.enum_def, code_ptr, |
| camel_name, false); |
| break; |
| } |
| default: { |
| code += start + "this." + camel_name + ";\n"; |
| break; |
| } |
| } |
| } |
| code += " }\n"; |
| // Pack() |
| code += " public static " + GenOffsetType(struct_def) + |
| " Pack(FlatBufferBuilder builder, " + struct_name + " _o) {\n"; |
| code += " if (_o == null) return default(" + GenOffsetType(struct_def) + |
| ");\n"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| auto camel_name = MakeCamel(field.name); |
| // pre |
| switch (field.value.type.base_type) { |
| case BASE_TYPE_STRUCT: { |
| if (!field.value.type.struct_def->fixed) { |
| code += " var _" + field.name + " = _o." + camel_name + |
| " == null ? default(" + |
| GenOffsetType(*field.value.type.struct_def) + |
| ") : " + GenTypeGet(field.value.type) + |
| ".Pack(builder, _o." + camel_name + ");\n"; |
| } |
| break; |
| } |
| case BASE_TYPE_STRING: { |
| std::string create_string = |
| field.shared ? "CreateSharedString" : "CreateString"; |
| code += " var _" + field.name + " = _o." + camel_name + |
| " == null ? default(StringOffset) : " |
| "builder." + |
| create_string + "(_o." + camel_name + ");\n"; |
| break; |
| } |
| case BASE_TYPE_VECTOR: { |
| if (field_has_create.find(&field) != field_has_create.end()) { |
| auto property_name = camel_name; |
| auto gen_for_loop = true; |
| std::string array_name = "__" + field.name; |
| std::string array_type = ""; |
| std::string to_array = ""; |
| switch (field.value.type.element) { |
| case BASE_TYPE_STRING: { |
| std::string create_string = |
| field.shared ? "CreateSharedString" : "CreateString"; |
| array_type = "StringOffset"; |
| to_array += "builder." + create_string + "(_o." + |
| property_name + "[_j])"; |
| break; |
| } |
| case BASE_TYPE_STRUCT: |
| array_type = "Offset<" + GenTypeGet(field.value.type) + ">"; |
| to_array = GenTypeGet(field.value.type) + ".Pack(builder, _o." + |
| property_name + "[_j])"; |
| break; |
| case BASE_TYPE_UTYPE: |
| property_name = camel_name.substr(0, camel_name.size() - 4); |
| array_type = WrapInNameSpace(*field.value.type.enum_def); |
| to_array = "_o." + property_name + "[_j].Type"; |
| break; |
| case BASE_TYPE_UNION: |
| array_type = "int"; |
| to_array = WrapInNameSpace(*field.value.type.enum_def) + |
| "Union.Pack(builder, _o." + property_name + "[_j])"; |
| break; |
| default: gen_for_loop = false; break; |
| } |
| code += " var _" + field.name + " = default(VectorOffset);\n"; |
| code += " if (_o." + property_name + " != null) {\n"; |
| if (gen_for_loop) { |
| code += " var " + array_name + " = new " + array_type + |
| "[_o." + property_name + ".Count];\n"; |
| code += " for (var _j = 0; _j < " + array_name + |
| ".Length; ++_j) { "; |
| code += array_name + "[_j] = " + to_array + "; }\n"; |
| } else { |
| code += " var " + array_name + " = _o." + property_name + |
| ".ToArray();\n"; |
| } |
| code += " _" + field.name + " = Create" + camel_name + |
| "Vector(builder, " + array_name + ");\n"; |
| code += " }\n"; |
| } else { |
| auto pack_method = |
| field.value.type.struct_def == nullptr |
| ? "builder.Add" + GenMethod(field.value.type.VectorType()) + |
| "(_o." + camel_name + "[_j]);" |
| : GenTypeGet(field.value.type) + ".Pack(builder, _o." + |
| camel_name + "[_j]);"; |
| code += " var _" + field.name + " = default(VectorOffset);\n"; |
| code += " if (_o." + camel_name + " != null) {\n"; |
| code += " Start" + camel_name + "Vector(builder, _o." + |
| camel_name + ".Count);\n"; |
| code += " for (var _j = _o." + camel_name + |
| ".Count - 1; _j >= 0; --_j) { " + pack_method + " }\n"; |
| code += " _" + field.name + " = builder.EndVector();\n"; |
| code += " }\n"; |
| } |
| break; |
| } |
| case BASE_TYPE_ARRAY: { |
| if (field.value.type.struct_def != nullptr) { |
| std::vector<std::string> name_vec; |
| name_vec.push_back(field.name); |
| std::vector<int> array_length_vec; |
| array_length_vec.push_back(field.value.type.fixed_length); |
| GenArrayPackDecl_ObjectAPI(*field.value.type.struct_def, code_ptr, |
| name_vec, array_length_vec); |
| } else { |
| code += " var _" + field.name + " = _o." + camel_name + ";\n"; |
| } |
| break; |
| } |
| case BASE_TYPE_UNION: { |
| code += " var _" + field.name + "_type = _o." + camel_name + |
| " == null ? " + WrapInNameSpace(*field.value.type.enum_def) + |
| ".NONE : " + "_o." + camel_name + ".Type;\n"; |
| code += |
| " var _" + field.name + " = _o." + camel_name + |
| " == null ? 0 : " + GenTypeGet_ObjectAPI(field.value.type, opts) + |
| ".Pack(builder, _o." + camel_name + ");\n"; |
| break; |
| } |
| default: break; |
| } |
| } |
| if (struct_has_create) { |
| // Create |
| code += " return Create" + struct_def.name + "(\n"; |
| code += " builder"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| auto camel_name = MakeCamel(field.name); |
| switch (field.value.type.base_type) { |
| case BASE_TYPE_STRUCT: { |
| if (struct_def.fixed) { |
| GenStructArgs_ObjectAPI(*field.value.type.struct_def, code_ptr, |
| " _o." + camel_name + "."); |
| } else { |
| code += ",\n"; |
| if (field.value.type.struct_def->fixed) { |
| code += " " + GenTypeGet(field.value.type) + |
| ".Pack(builder, _o." + camel_name + ")"; |
| } else { |
| code += " _" + field.name; |
| } |
| } |
| break; |
| } |
| case BASE_TYPE_ARRAY: { |
| if (field.value.type.struct_def != nullptr) { |
| GenArrayPackCall_ObjectAPI(*field.value.type.struct_def, code_ptr, |
| " _" + field.name + "_"); |
| } else { |
| code += ",\n"; |
| code += " _" + field.name; |
| } |
| break; |
| } |
| case BASE_TYPE_UNION: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_UTYPE: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_STRING: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_VECTOR: { |
| code += ",\n"; |
| code += " _" + field.name; |
| break; |
| } |
| default: // scalar |
| code += ",\n"; |
| code += " _o." + camel_name; |
| break; |
| } |
| } |
| code += ");\n"; |
| } else { |
| // Start, End |
| code += " Start" + struct_def.name + "(builder);\n"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| auto camel_name = MakeCamel(field.name); |
| switch (field.value.type.base_type) { |
| case BASE_TYPE_STRUCT: { |
| if (field.value.type.struct_def->fixed) { |
| code += " Add" + camel_name + "(builder, " + |
| GenTypeGet(field.value.type) + ".Pack(builder, _o." + |
| camel_name + "));\n"; |
| } else { |
| code += |
| " Add" + camel_name + "(builder, _" + field.name + ");\n"; |
| } |
| break; |
| } |
| case BASE_TYPE_STRING: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_VECTOR: { |
| code += |
| " Add" + camel_name + "(builder, _" + field.name + ");\n"; |
| break; |
| } |
| case BASE_TYPE_UTYPE: break; |
| case BASE_TYPE_UNION: { |
| code += " Add" + camel_name + "Type(builder, _" + field.name + |
| "_type);\n"; |
| code += |
| " Add" + camel_name + "(builder, _" + field.name + ");\n"; |
| break; |
| } |
| // scalar |
| default: { |
| code += |
| " Add" + camel_name + "(builder, _o." + camel_name + ");\n"; |
| break; |
| } |
| } |
| } |
| code += " return End" + struct_def.name + "(builder);\n"; |
| } |
| code += " }\n"; |
| } |
| |
| void GenStructArgs_ObjectAPI(const StructDef &struct_def, |
| std::string *code_ptr, |
| std::string prefix) const { |
| auto &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; |
| if (IsStruct(field_type)) { |
| GenStructArgs_ObjectAPI(*field_type.struct_def, code_ptr, |
| prefix + "." + MakeCamel(field.name) + "."); |
| } else { |
| code += ",\n"; |
| code += prefix + MakeCamel(field.name); |
| } |
| } |
| } |
| |
| void GenArrayPackDecl_ObjectAPI(const StructDef &struct_def, |
| std::string *code_ptr, |
| std::vector<std::string> name_vec, |
| std::vector<int> array_length_vec) const { |
| auto &code = *code_ptr; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| auto is_array = IsArray(field.value.type); |
| const auto &field_type = |
| is_array ? field.value.type.VectorType() : field.value.type; |
| if (!IsStruct(field_type)) { |
| auto tmp_name_vec = name_vec; |
| tmp_name_vec.push_back(field.name); |
| auto tmp_array_length_vec = array_length_vec; |
| if (is_array) { |
| tmp_array_length_vec.push_back(field_type.fixed_length); |
| } |
| std::string name; |
| for (size_t tmp_name_index = 0; tmp_name_index < tmp_name_vec.size(); |
| ++tmp_name_index) { |
| name += "_" + tmp_name_vec[tmp_name_index]; |
| } |
| code += " var " + name + " = new " + GenTypeBasic(field_type) + "["; |
| code += NumToString(tmp_array_length_vec[0]); |
| for (size_t i = 1; i < tmp_array_length_vec.size(); ++i) { |
| auto array_length = tmp_array_length_vec[i]; |
| code += "," + NumToString(array_length); |
| } |
| code += "];\n"; |
| code += " "; |
| // initialize array |
| for (size_t i = 0; i < tmp_array_length_vec.size(); ++i) { |
| auto array_length = tmp_array_length_vec[i]; |
| auto idx = "idx" + NumToString(i); |
| code += "for (var " + idx + " = 0; " + idx + " < " + |
| NumToString(array_length) + "; ++" + idx + ") {"; |
| } |
| code += name + "[idx0"; |
| for (size_t i = 1; i < tmp_array_length_vec.size(); ++i) { |
| auto idx = "idx" + NumToString(i); |
| code += "," + idx; |
| } |
| code += "] = _o"; |
| for (size_t i = 0; i < tmp_array_length_vec.size(); ++i) { |
| auto idx = "idx" + NumToString(i); |
| code += "." + MakeCamel(tmp_name_vec[i]) + "[" + idx + "]"; |
| } |
| if (!is_array) { code += "." + MakeCamel(field.name); } |
| code += ";"; |
| for (size_t i = 0; i < tmp_array_length_vec.size(); ++i) { |
| code += "}"; |
| } |
| code += "\n"; |
| } |
| } |
| } |
| |
| void GenArrayPackCall_ObjectAPI(const StructDef &struct_def, |
| std::string *code_ptr, |
| std::string prefix) const { |
| auto &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; |
| if (IsStruct(field_type)) { |
| GenArrayPackCall_ObjectAPI(*field_type.struct_def, code_ptr, |
| prefix + field.name + "_"); |
| } else { |
| code += ",\n"; |
| code += prefix + field.name; |
| } |
| } |
| } |
| |
| std::string GenTypeGet_ObjectAPI(flatbuffers::Type type, |
| const IDLOptions &opts) const { |
| auto type_name = GenTypeGet(type); |
| // Replace to ObjectBaseAPI Type Name |
| switch (type.base_type) { |
| case BASE_TYPE_STRUCT: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_VECTOR: { |
| if (type.struct_def != nullptr) { |
| auto type_name_length = type.struct_def->name.length(); |
| auto new_type_name = |
| GenTypeName_ObjectAPI(type.struct_def->name, opts); |
| type_name.replace(type_name.length() - type_name_length, |
| type_name_length, new_type_name); |
| } else if (type.element == BASE_TYPE_UNION) { |
| type_name = WrapInNameSpace(*type.enum_def) + "Union"; |
| } |
| break; |
| } |
| |
| case BASE_TYPE_UNION: { |
| type_name = WrapInNameSpace(*type.enum_def) + "Union"; |
| break; |
| } |
| default: break; |
| } |
| |
| switch (type.base_type) { |
| case BASE_TYPE_ARRAY: { |
| type_name = type_name + "[]"; |
| break; |
| } |
| case BASE_TYPE_VECTOR: { |
| type_name = "List<" + type_name + ">"; |
| break; |
| } |
| default: break; |
| } |
| return type_name; |
| } |
| |
| void GenStruct_ObjectAPI(StructDef &struct_def, std::string *code_ptr, |
| const IDLOptions &opts) const { |
| auto &code = *code_ptr; |
| if (struct_def.attributes.Lookup("private")) { |
| code += "internal "; |
| } else { |
| code += "public "; |
| } |
| if (struct_def.attributes.Lookup("csharp_partial")) { |
| // generate a partial class for this C# struct/table |
| code += "partial "; |
| } |
| auto class_name = GenTypeName_ObjectAPI(struct_def.name, opts); |
| code += "class " + class_name; |
| code += "\n{\n"; |
| // Generate Properties |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| if (field.value.type.base_type == BASE_TYPE_UTYPE) continue; |
| if (field.value.type.element == BASE_TYPE_UTYPE) continue; |
| auto type_name = GenTypeGet_ObjectAPI(field.value.type, opts); |
| auto camel_name = MakeCamel(field.name, true); |
| if (opts.cs_gen_json_serializer) { |
| if (IsUnion(field.value.type)) { |
| auto utype_name = WrapInNameSpace(*field.value.type.enum_def); |
| code += |
| " [Newtonsoft.Json.JsonProperty(\"" + field.name + "_type\")]\n"; |
| if (field.value.type.base_type == BASE_TYPE_VECTOR) { |
| code += " private " + utype_name + "[] " + camel_name + "Type {\n"; |
| code += " get {\n"; |
| code += " if (this." + camel_name + " == null) return null;\n"; |
| code += " var _o = new " + utype_name + "[this." + camel_name + |
| ".Count];\n"; |
| code += |
| " for (var _j = 0; _j < _o.Length; ++_j) { _o[_j] = " |
| "this." + |
| camel_name + "[_j].Type; }\n"; |
| code += " return _o;\n"; |
| code += " }\n"; |
| code += " set {\n"; |
| code += " this." + camel_name + " = new List<" + utype_name + |
| "Union>();\n"; |
| code += " for (var _j = 0; _j < value.Length; ++_j) {\n"; |
| code += " var _o = new " + utype_name + "Union();\n"; |
| code += " _o.Type = value[_j];\n"; |
| code += " this." + camel_name + ".Add(_o);\n"; |
| code += " }\n"; |
| code += " }\n"; |
| code += " }\n"; |
| } else { |
| code += " private " + utype_name + " " + camel_name + "Type {\n"; |
| code += " get {\n"; |
| code += " return this." + camel_name + " != null ? this." + |
| camel_name + ".Type : " + utype_name + ".NONE;\n"; |
| code += " }\n"; |
| code += " set {\n"; |
| code += " this." + camel_name + " = new " + utype_name + |
| "Union();\n"; |
| code += " this." + camel_name + ".Type = value;\n"; |
| code += " }\n"; |
| code += " }\n"; |
| } |
| } |
| code += " [Newtonsoft.Json.JsonProperty(\"" + field.name + "\")]\n"; |
| if (IsUnion(field.value.type)) { |
| auto union_name = |
| (field.value.type.base_type == BASE_TYPE_VECTOR) |
| ? GenTypeGet_ObjectAPI(field.value.type.VectorType(), opts) |
| : type_name; |
| code += " [Newtonsoft.Json.JsonConverter(typeof(" + union_name + |
| "_JsonConverter))]\n"; |
| } |
| if (field.attributes.Lookup("hash")) { |
| code += " [Newtonsoft.Json.JsonIgnore()]\n"; |
| } |
| } |
| code += " public " + type_name + " " + camel_name + " { get; set; }\n"; |
| } |
| // Generate Constructor |
| code += "\n"; |
| code += " public " + class_name + "() {\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.value.type.base_type == BASE_TYPE_UTYPE) continue; |
| if (field.value.type.element == BASE_TYPE_UTYPE) continue; |
| code += " this." + MakeCamel(field.name) + " = "; |
| auto type_name = GenTypeGet_ObjectAPI(field.value.type, opts); |
| if (IsScalar(field.value.type.base_type)) { |
| code += GenDefaultValue(field) + ";\n"; |
| } else { |
| switch (field.value.type.base_type) { |
| case BASE_TYPE_STRUCT: { |
| if (IsStruct(field.value.type)) { |
| code += "new " + type_name + "();\n"; |
| } else { |
| code += "null;\n"; |
| } |
| break; |
| } |
| case BASE_TYPE_ARRAY: { |
| code += "new " + type_name.substr(0, type_name.length() - 1) + |
| NumToString(field.value.type.fixed_length) + "];\n"; |
| break; |
| } |
| default: { |
| code += "null;\n"; |
| break; |
| } |
| } |
| } |
| } |
| code += " }\n"; |
| // Generate Serialization |
| if (opts.cs_gen_json_serializer && |
| parser_.root_struct_def_ == &struct_def) { |
| code += "\n"; |
| code += " public static " + class_name + |
| " DeserializeFromJson(string jsonText) {\n"; |
| code += " return Newtonsoft.Json.JsonConvert.DeserializeObject<" + |
| class_name + ">(jsonText);\n"; |
| code += " }\n"; |
| code += " public string SerializeToJson() {\n"; |
| code += |
| " return Newtonsoft.Json.JsonConvert.SerializeObject(this, " |
| "Newtonsoft.Json.Formatting.Indented);\n"; |
| code += " }\n"; |
| } |
| if (parser_.root_struct_def_ == &struct_def) { |
| code += " public static " + class_name + |
| " DeserializeFromBinary(byte[] fbBuffer) {\n"; |
| code += " return " + struct_def.name + ".GetRootAs" + struct_def.name + |
| "(new ByteBuffer(fbBuffer)).UnPack();\n"; |
| code += " }\n"; |
| code += " public byte[] SerializeToBinary() {\n"; |
| code += " var fbb = new FlatBufferBuilder(0x10000);\n"; |
| code += |
| " fbb.Finish(" + struct_def.name + ".Pack(fbb, this).Value);\n"; |
| code += " return fbb.DataBuffer.ToSizedArray();\n"; |
| code += " }\n"; |
| } |
| code += "}\n\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 csharp |
| |
| bool GenerateCSharp(const Parser &parser, const std::string &path, |
| const std::string &file_name) { |
| csharp::CSharpGenerator generator(parser, path, file_name); |
| return generator.generate(); |
| } |
| |
| } // namespace flatbuffers |
