| /* |
| * Copyright 2014 Google Inc. All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // independent from idl_parser, since this code is not needed for most clients |
| |
| #include "flatbuffers/code_generators.h" |
| #include "flatbuffers/flatbuffers.h" |
| #include "flatbuffers/idl.h" |
| #include "flatbuffers/util.h" |
| |
| #if defined(FLATBUFFERS_CPP98_STL) |
| # include <cctype> |
| #endif // defined(FLATBUFFERS_CPP98_STL) |
| |
| namespace flatbuffers { |
| namespace java { |
| |
| static TypedFloatConstantGenerator JavaFloatGen("Double.", "Float.", "NaN", |
| "POSITIVE_INFINITY", |
| "NEGATIVE_INFINITY"); |
| |
| static CommentConfig comment_config = { |
| "/**", |
| " *", |
| " */", |
| }; |
| |
| class JavaGenerator : public BaseGenerator { |
| public: |
| JavaGenerator(const Parser &parser, const std::string &path, |
| const std::string &file_name) |
| : BaseGenerator(parser, path, file_name, "", ".", "java"), |
| cur_name_space_(nullptr) {} |
| |
| JavaGenerator &operator=(const JavaGenerator &); |
| bool generate() { |
| std::string one_file_code; |
| cur_name_space_ = parser_.current_namespace_; |
| |
| for (auto it = parser_.enums_.vec.begin(); it != parser_.enums_.vec.end(); |
| ++it) { |
| std::string enumcode; |
| auto &enum_def = **it; |
| if (!parser_.opts.one_file) cur_name_space_ = enum_def.defined_namespace; |
| GenEnum(enum_def, &enumcode); |
| if (parser_.opts.one_file) { |
| one_file_code += enumcode; |
| } else { |
| if (!SaveType(enum_def.name, *enum_def.defined_namespace, enumcode, |
| false)) |
| return false; |
| } |
| } |
| |
| for (auto it = parser_.structs_.vec.begin(); |
| it != parser_.structs_.vec.end(); ++it) { |
| std::string declcode; |
| auto &struct_def = **it; |
| if (!parser_.opts.one_file) |
| cur_name_space_ = struct_def.defined_namespace; |
| GenStruct(struct_def, &declcode); |
| if (parser_.opts.one_file) { |
| one_file_code += declcode; |
| } else { |
| if (!SaveType(struct_def.name, *struct_def.defined_namespace, declcode, |
| 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; |
| code = "// " + std::string(FlatBuffersGeneratedWarning()) + "\n\n"; |
| |
| std::string namespace_name = FullNamespace(".", ns); |
| if (!namespace_name.empty()) { |
| code += "package " + namespace_name + ";"; |
| code += "\n\n"; |
| } |
| if (needs_includes) { |
| code += |
| "import java.nio.*;\nimport java.lang.*;\nimport " |
| "java.util.*;\nimport com.google.flatbuffers.*;\n"; |
| if (parser_.opts.gen_nullable) { |
| code += "\nimport javax.annotation.Nullable;\n"; |
| } |
| if (parser_.opts.java_checkerframework) { |
| code += "\nimport org.checkerframework.dataflow.qual.Pure;\n"; |
| } |
| code += "\n@SuppressWarnings(\"unused\")\n"; |
| } |
| if (parser_.opts.gen_generated) { |
| code += "\n@javax.annotation.Generated(value=\"flatc\")\n"; |
| } |
| code += classcode; |
| if (!namespace_name.empty()) code += ""; |
| auto filename = NamespaceDir(ns) + defname + ".java"; |
| return SaveFile(filename.c_str(), code, false); |
| } |
| |
| const Namespace *CurrentNameSpace() const { return cur_name_space_; } |
| |
| std::string GenNullableAnnotation(const Type &t) const { |
| return parser_.opts.gen_nullable && |
| !IsScalar(DestinationType(t, true).base_type) && |
| t.base_type != BASE_TYPE_VECTOR |
| ? " @Nullable " |
| : ""; |
| } |
| |
| std::string GenPureAnnotation(const Type &t) const { |
| return parser_.opts.java_checkerframework && |
| !IsScalar(DestinationType(t, true).base_type) |
| ? " @Pure " |
| : ""; |
| } |
| |
| std::string GenTypeBasic(const Type &type) const { |
| // clang-format off |
| static const char * const java_typename[] = { |
| #define FLATBUFFERS_TD(ENUM, IDLTYPE, CTYPE, JTYPE, ...) \ |
| #JTYPE, |
| FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD) |
| #undef FLATBUFFERS_TD |
| }; |
| // clang-format on |
| return java_typename[type.base_type]; |
| } |
| |
| std::string GenTypePointer(const Type &type) const { |
| switch (type.base_type) { |
| case BASE_TYPE_STRING: return "String"; |
| case BASE_TYPE_VECTOR: return GenTypeGet(type.VectorType()); |
| case BASE_TYPE_STRUCT: return WrapInNameSpace(*type.struct_def); |
| case BASE_TYPE_UNION: FLATBUFFERS_FALLTHROUGH(); // else fall thru |
| default: return "Table"; |
| } |
| } |
| |
| std::string GenTypeGet(const Type &type) const { |
| return IsScalar(type.base_type) |
| ? GenTypeBasic(type) |
| : (IsArray(type) ? GenTypeGet(type.VectorType()) |
| : GenTypePointer(type)); |
| } |
| |
| // Find the destination type the user wants to receive the value in (e.g. |
| // one size higher signed types for unsigned serialized values in Java). |
| Type DestinationType(const Type &type, bool vectorelem) const { |
| switch (type.base_type) { |
| // We use int for both uchar/ushort, since that generally means less |
| // casting than using short for uchar. |
| case BASE_TYPE_UCHAR: return Type(BASE_TYPE_INT); |
| case BASE_TYPE_USHORT: return Type(BASE_TYPE_INT); |
| case BASE_TYPE_UINT: return Type(BASE_TYPE_LONG); |
| case BASE_TYPE_ARRAY: |
| case BASE_TYPE_VECTOR: |
| if (vectorelem) return DestinationType(type.VectorType(), vectorelem); |
| FLATBUFFERS_FALLTHROUGH(); // else fall thru |
| default: return type; |
| } |
| } |
| |
| std::string GenOffsetType() const { return "int"; } |
| |
| std::string GenOffsetConstruct(const std::string &variable_name) const { |
| return variable_name; |
| } |
| |
| std::string GenVectorOffsetType() const { return "int"; } |
| |
| // Generate destination type name |
| std::string GenTypeNameDest(const Type &type) const { |
| return GenTypeGet(DestinationType(type, true)); |
| } |
| |
| // Mask to turn serialized value into destination type value. |
| std::string DestinationMask(const Type &type, bool vectorelem) const { |
| switch (type.base_type) { |
| case BASE_TYPE_UCHAR: return " & 0xFF"; |
| case BASE_TYPE_USHORT: return " & 0xFFFF"; |
| case BASE_TYPE_UINT: return " & 0xFFFFFFFFL"; |
| case BASE_TYPE_VECTOR: |
| if (vectorelem) return DestinationMask(type.VectorType(), vectorelem); |
| FLATBUFFERS_FALLTHROUGH(); // else fall thru |
| default: return ""; |
| } |
| } |
| |
| // Casts necessary to correctly read serialized data |
| std::string DestinationCast(const Type &type) const { |
| if (IsSeries(type)) { |
| return DestinationCast(type.VectorType()); |
| } else { |
| // Cast necessary to correctly read serialized unsigned values. |
| if (type.base_type == BASE_TYPE_UINT) return "(long)"; |
| } |
| return ""; |
| } |
| |
| // Cast statements for mutator method parameters. |
| // In Java, parameters representing unsigned numbers need to be cast down to |
| // their respective type. For example, a long holding an unsigned int value |
| // would be cast down to int before being put onto the buffer. 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, bool castFromDest) const { |
| if (IsSeries(type)) { |
| return SourceCast(type.VectorType(), castFromDest); |
| } else { |
| if (castFromDest) { |
| if (type.base_type == BASE_TYPE_UINT) |
| return "(int)"; |
| else if (type.base_type == BASE_TYPE_USHORT) |
| return "(short)"; |
| else if (type.base_type == BASE_TYPE_UCHAR) |
| return "(byte)"; |
| } |
| } |
| return ""; |
| } |
| |
| std::string SourceCast(const Type &type) const { |
| return SourceCast(type, true); |
| } |
| |
| std::string SourceCastBasic(const Type &type, bool castFromDest) const { |
| return IsScalar(type.base_type) ? SourceCast(type, castFromDest) : ""; |
| } |
| |
| std::string SourceCastBasic(const Type &type) const { |
| return SourceCastBasic(type, true); |
| } |
| |
| std::string GenEnumDefaultValue(const FieldDef &field) const { |
| auto &value = field.value; |
| FLATBUFFERS_ASSERT(value.type.enum_def); |
| auto &enum_def = *value.type.enum_def; |
| auto enum_val = enum_def.FindByValue(value.constant); |
| return enum_val ? (WrapInNameSpace(enum_def) + "." + enum_val->name) |
| : value.constant; |
| } |
| |
| std::string GenDefaultValue(const FieldDef &field) const { |
| auto &value = field.value; |
| auto longSuffix = "L"; |
| switch (value.type.base_type) { |
| case BASE_TYPE_BOOL: return value.constant == "0" ? "false" : "true"; |
| case BASE_TYPE_ULONG: { |
| // Converts the ulong into its bits signed equivalent |
| uint64_t defaultValue = StringToUInt(value.constant.c_str()); |
| return NumToString(static_cast<int64_t>(defaultValue)) + longSuffix; |
| } |
| case BASE_TYPE_UINT: |
| case BASE_TYPE_LONG: return value.constant + longSuffix; |
| default: |
| if (IsFloat(value.type.base_type)) |
| return JavaFloatGen.GenFloatConstant(field); |
| else |
| return value.constant; |
| } |
| } |
| |
| std::string GenDefaultValueBasic(const FieldDef &field) const { |
| auto &value = field.value; |
| if (!IsScalar(value.type.base_type)) { return "0"; } |
| return GenDefaultValue(field); |
| } |
| |
| void GenEnum(EnumDef &enum_def, std::string *code_ptr) const { |
| std::string &code = *code_ptr; |
| if (enum_def.generated) return; |
| |
| // Generate enum definitions of the form: |
| // public static (final) int name = value; |
| // In Java, we use ints rather than the Enum feature, because we want them |
| // to map directly to how they're used in C/C++ and file formats. |
| // That, and Java Enums are expensive, and not universally liked. |
| GenComment(enum_def.doc_comment, code_ptr, &comment_config); |
| |
| if (enum_def.attributes.Lookup("private")) { |
| // For Java, we leave the enum unmarked to indicate package-private |
| // For C# we mark the enum as internal |
| } else { |
| code += "public "; |
| } |
| code += "final class " + enum_def.name; |
| code += " {\n"; |
| code += " private " + enum_def.name + "() { }\n"; |
| for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); ++it) { |
| auto &ev = **it; |
| GenComment(ev.doc_comment, code_ptr, &comment_config, " "); |
| code += " public static final "; |
| code += GenTypeBasic(enum_def.underlying_type); |
| code += " "; |
| code += ev.name + " = "; |
| code += enum_def.ToString(ev); |
| code += ";\n"; |
| } |
| |
| // Generate a generate string table for enum values. |
| // We do not do that for C# where this functionality is native. |
| // Problem is, if values are very sparse that could generate really big |
| // tables. Ideally in that case we generate a map lookup instead, but for |
| // the moment we simply don't output a table at all. |
| auto range = enum_def.Distance(); |
| // Average distance between values above which we consider a table |
| // "too sparse". Change at will. |
| static const uint64_t kMaxSparseness = 5; |
| if (range / static_cast<uint64_t>(enum_def.size()) < kMaxSparseness) { |
| code += "\n public static final String"; |
| code += "[] names = { "; |
| auto val = enum_def.Vals().front(); |
| for (auto it = enum_def.Vals().begin(); it != enum_def.Vals().end(); |
| ++it) { |
| auto ev = *it; |
| for (auto k = enum_def.Distance(val, ev); k > 1; --k) code += "\"\", "; |
| val = ev; |
| code += "\"" + (*it)->name + "\", "; |
| } |
| code += "};\n\n"; |
| code += " public static "; |
| code += "String"; |
| code += " " + MakeCamel("name", false); |
| code += "(int e) { return names[e"; |
| if (enum_def.MinValue()->IsNonZero()) |
| code += " - " + enum_def.MinValue()->name; |
| code += "]; }\n"; |
| } |
| |
| // Close the class |
| code += "}"; |
| // Java does not need the closing semi-colon on class definitions. |
| code += ""; |
| code += "\n\n"; |
| } |
| |
| // Returns the function name that is able to read a value of the given type. |
| std::string GenGetter(const Type &type) const { |
| switch (type.base_type) { |
| case BASE_TYPE_STRING: return "__string"; |
| case BASE_TYPE_STRUCT: return "__struct"; |
| case BASE_TYPE_UNION: return "__union"; |
| case BASE_TYPE_VECTOR: return GenGetter(type.VectorType()); |
| case BASE_TYPE_ARRAY: return GenGetter(type.VectorType()); |
| default: { |
| std::string getter = "bb.get"; |
| if (type.base_type == BASE_TYPE_BOOL) { |
| getter = "0!=" + getter; |
| } else if (GenTypeBasic(type) != "byte") { |
| getter += MakeCamel(GenTypeBasic(type)); |
| } |
| return getter; |
| } |
| } |
| } |
| |
| // Returns the function name that is able to read a value of the given type. |
| std::string GenGetterForLookupByKey(flatbuffers::FieldDef *key_field, |
| const std::string &data_buffer, |
| const char *num = nullptr) const { |
| auto type = key_field->value.type; |
| auto dest_mask = DestinationMask(type, true); |
| auto dest_cast = DestinationCast(type); |
| auto getter = data_buffer + ".get"; |
| if (GenTypeBasic(type) != "byte") { |
| getter += MakeCamel(GenTypeBasic(type)); |
| } |
| getter = dest_cast + getter + "(" + GenOffsetGetter(key_field, num) + ")" + |
| dest_mask; |
| return getter; |
| } |
| |
| // Direct mutation is only allowed for scalar fields. |
| // Hence a setter method will only be generated for such fields. |
| std::string GenSetter(const Type &type) const { |
| if (IsScalar(type.base_type)) { |
| std::string setter = "bb.put"; |
| if (GenTypeBasic(type) != "byte" && type.base_type != BASE_TYPE_BOOL) { |
| setter += MakeCamel(GenTypeBasic(type)); |
| } |
| return setter; |
| } else { |
| return ""; |
| } |
| } |
| |
| // Returns the method name for use with add/put calls. |
| std::string GenMethod(const Type &type) const { |
| return IsScalar(type.base_type) ? MakeCamel(GenTypeBasic(type)) |
| : (IsStruct(type) ? "Struct" : "Offset"); |
| } |
| |
| // Recursively generate arguments for a constructor, to deal with nested |
| // structs. |
| void GenStructArgs(const StructDef &struct_def, std::string *code_ptr, |
| const char *nameprefix, size_t array_count = 0) const { |
| std::string &code = *code_ptr; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| const auto &field_type = field.value.type; |
| const auto array_field = IsArray(field_type); |
| const auto &type = array_field ? field_type.VectorType() |
| : DestinationType(field_type, false); |
| const auto array_cnt = array_field ? (array_count + 1) : array_count; |
| if (IsStruct(type)) { |
| // Generate arguments for a struct inside a struct. To ensure names |
| // don't clash, and to make it obvious these arguments are constructing |
| // a nested struct, prefix the name with the field name. |
| GenStructArgs(*field_type.struct_def, code_ptr, |
| (nameprefix + (field.name + "_")).c_str(), array_cnt); |
| } else { |
| code += ", "; |
| code += GenTypeBasic(type); |
| for (size_t i = 0; i < array_cnt; i++) code += "[]"; |
| code += " "; |
| code += nameprefix; |
| code += MakeCamel(field.name, false); |
| } |
| } |
| } |
| |
| // Recusively generate struct construction statements of the form: |
| // builder.putType(name); |
| // and insert manual padding. |
| void GenStructBody(const StructDef &struct_def, std::string *code_ptr, |
| const char *nameprefix, size_t index = 0, |
| bool in_array = false) const { |
| std::string &code = *code_ptr; |
| std::string indent((index + 1) * 2, ' '); |
| code += indent + " builder.prep("; |
| code += NumToString(struct_def.minalign) + ", "; |
| code += NumToString(struct_def.bytesize) + ");\n"; |
| for (auto it = struct_def.fields.vec.rbegin(); |
| it != struct_def.fields.vec.rend(); ++it) { |
| auto &field = **it; |
| const auto &field_type = field.value.type; |
| if (field.padding) { |
| code += indent + " builder.pad("; |
| code += NumToString(field.padding) + ");\n"; |
| } |
| if (IsStruct(field_type)) { |
| GenStructBody(*field_type.struct_def, code_ptr, |
| (nameprefix + (field.name + "_")).c_str(), index, |
| in_array); |
| } else { |
| const auto &type = |
| IsArray(field_type) ? field_type.VectorType() : field_type; |
| const auto index_var = "_idx" + NumToString(index); |
| if (IsArray(field_type)) { |
| code += indent + " for (int " + index_var + " = "; |
| code += NumToString(field_type.fixed_length); |
| code += "; " + index_var + " > 0; " + index_var + "--) {\n"; |
| in_array = true; |
| } |
| if (IsStruct(type)) { |
| GenStructBody(*field_type.struct_def, code_ptr, |
| (nameprefix + (field.name + "_")).c_str(), index + 1, |
| in_array); |
| } else { |
| code += IsArray(field_type) ? " " : ""; |
| code += indent + " builder.put"; |
| code += GenMethod(type) + "("; |
| code += SourceCast(type); |
| auto argname = nameprefix + MakeCamel(field.name, false); |
| code += argname; |
| size_t array_cnt = index + (IsArray(field_type) ? 1 : 0); |
| for (size_t i = 0; in_array && i < array_cnt; i++) { |
| code += "[_idx" + NumToString(i) + "-1]"; |
| } |
| code += ");\n"; |
| } |
| if (IsArray(field_type)) { code += indent + " }\n"; } |
| } |
| } |
| } |
| |
| std::string GenByteBufferLength(const char *bb_name) const { |
| std::string bb_len = bb_name; |
| bb_len += ".capacity()"; |
| return bb_len; |
| } |
| |
| std::string GenOffsetGetter(flatbuffers::FieldDef *key_field, |
| const char *num = nullptr) const { |
| std::string key_offset = ""; |
| key_offset += "__offset(" + NumToString(key_field->value.offset) + ", "; |
| if (num) { |
| key_offset += num; |
| key_offset += ", _bb)"; |
| } else { |
| key_offset += GenByteBufferLength("bb"); |
| key_offset += " - tableOffset, bb)"; |
| } |
| return key_offset; |
| } |
| |
| std::string GenLookupKeyGetter(flatbuffers::FieldDef *key_field) const { |
| std::string key_getter = " "; |
| key_getter += "int tableOffset = "; |
| key_getter += "__indirect(vectorLocation + 4 * (start + middle)"; |
| key_getter += ", bb);\n "; |
| if (key_field->value.type.base_type == BASE_TYPE_STRING) { |
| key_getter += "int comp = "; |
| key_getter += "compareStrings("; |
| key_getter += GenOffsetGetter(key_field); |
| key_getter += ", byteKey, bb);\n"; |
| } else { |
| auto get_val = GenGetterForLookupByKey(key_field, "bb"); |
| key_getter += GenTypeNameDest(key_field->value.type) + " val = "; |
| key_getter += get_val + ";\n"; |
| key_getter += " int comp = val > key ? 1 : val < key ? -1 : 0;\n"; |
| } |
| return key_getter; |
| } |
| |
| std::string GenKeyGetter(flatbuffers::FieldDef *key_field) const { |
| std::string key_getter = ""; |
| auto data_buffer = "_bb"; |
| if (key_field->value.type.base_type == BASE_TYPE_STRING) { |
| key_getter += " return "; |
| key_getter += ""; |
| key_getter += "compareStrings("; |
| key_getter += GenOffsetGetter(key_field, "o1") + ", "; |
| key_getter += GenOffsetGetter(key_field, "o2") + ", " + data_buffer + ")"; |
| key_getter += ";"; |
| } else { |
| auto field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o1"); |
| key_getter += |
| "\n " + GenTypeNameDest(key_field->value.type) + " val_1 = "; |
| key_getter += |
| field_getter + ";\n " + GenTypeNameDest(key_field->value.type); |
| key_getter += " val_2 = "; |
| field_getter = GenGetterForLookupByKey(key_field, data_buffer, "o2"); |
| key_getter += field_getter + ";\n"; |
| key_getter += " return val_1 > val_2 ? 1 : val_1 < val_2 ? -1 : 0;\n "; |
| } |
| return key_getter; |
| } |
| |
| void GenStruct(StructDef &struct_def, std::string *code_ptr) const { |
| if (struct_def.generated) return; |
| std::string &code = *code_ptr; |
| |
| // Generate a struct accessor class, with methods of the form: |
| // public type name() { return bb.getType(i + offset); } |
| // or for tables of the form: |
| // public type name() { |
| // int o = __offset(offset); return o != 0 ? bb.getType(o + i) : default; |
| // } |
| GenComment(struct_def.doc_comment, code_ptr, &comment_config); |
| if (struct_def.attributes.Lookup("private")) { |
| // For Java, we leave the struct unmarked to indicate package-private |
| // For C# we mark the struct as internal |
| } else { |
| code += "public "; |
| } |
| code += "final "; |
| code += "class " + struct_def.name; |
| code += " extends "; |
| code += struct_def.fixed ? "Struct" : "Table"; |
| code += " {\n"; |
| |
| if (!struct_def.fixed) { |
| // Generate verson check method. |
| // Force compile time error if not using the same version runtime. |
| code += " public static void ValidateVersion() {"; |
| code += " Constants."; |
| code += "FLATBUFFERS_1_12_0(); "; |
| code += "}\n"; |
| |
| // Generate a special accessor for the table that when used as the root |
| // of a FlatBuffer |
| std::string method_name = "getRootAs" + struct_def.name; |
| std::string method_signature = |
| " public static " + struct_def.name + " " + method_name; |
| |
| // create convenience method that doesn't require an existing object |
| code += method_signature + "(ByteBuffer _bb) "; |
| code += "{ return " + method_name + "(_bb, new " + struct_def.name + |
| "()); }\n"; |
| |
| // create method that allows object reuse |
| code += |
| method_signature + "(ByteBuffer _bb, " + struct_def.name + " obj) { "; |
| code += "_bb.order(ByteOrder.LITTLE_ENDIAN); "; |
| code += "return (obj.__assign(_bb.getInt(_bb."; |
| code += "position()"; |
| code += ") + _bb."; |
| code += "position()"; |
| code += ", _bb)); }\n"; |
| if (parser_.root_struct_def_ == &struct_def) { |
| if (parser_.file_identifier_.length()) { |
| // Check if a buffer has the identifier. |
| code += " public static "; |
| code += "boolean " + struct_def.name; |
| code += "BufferHasIdentifier(ByteBuffer _bb) { return "; |
| code += "__has_identifier(_bb, \""; |
| code += parser_.file_identifier_; |
| code += "\"); }\n"; |
| } |
| } |
| } |
| // Generate the __init method that sets the field in a pre-existing |
| // accessor object. This is to allow object reuse. |
| code += " public void __init(int _i, ByteBuffer _bb) "; |
| code += "{ "; |
| code += "__reset(_i, _bb); "; |
| code += "}\n"; |
| code += |
| " public " + struct_def.name + " __assign(int _i, ByteBuffer _bb) "; |
| code += "{ __init(_i, _bb); return this; }\n\n"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| GenComment(field.doc_comment, code_ptr, &comment_config, " "); |
| std::string type_name = GenTypeGet(field.value.type); |
| std::string type_name_dest = GenTypeNameDest(field.value.type); |
| std::string conditional_cast = ""; |
| std::string optional = ""; |
| std::string dest_mask = DestinationMask(field.value.type, true); |
| std::string dest_cast = DestinationCast(field.value.type); |
| std::string src_cast = SourceCast(field.value.type); |
| std::string method_start = |
| " public " + |
| (field.required ? "" : GenNullableAnnotation(field.value.type)) + |
| GenPureAnnotation(field.value.type) + type_name_dest + optional + |
| " " + MakeCamel(field.name, false); |
| std::string obj = "obj"; |
| |
| // Most field accessors need to retrieve and test the field offset first, |
| // this is the prefix code for that: |
| auto offset_prefix = |
| IsArray(field.value.type) |
| ? " { return " |
| : (" { int o = __offset(" + NumToString(field.value.offset) + |
| "); return o != 0 ? "); |
| // Generate the accessors that don't do object reuse. |
| if (field.value.type.base_type == BASE_TYPE_STRUCT) { |
| // Calls the accessor that takes an accessor object with a new object. |
| code += method_start + "() { return "; |
| code += MakeCamel(field.name, false); |
| code += "(new "; |
| code += type_name + "()); }\n"; |
| } else if (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 "; |
| code += MakeCamel(field.name, false); |
| code += "(new " + type_name + "(), j); }\n"; |
| } |
| |
| std::string getter = dest_cast + GenGetter(field.value.type); |
| code += method_start; |
| std::string default_cast = ""; |
| std::string member_suffix = "; "; |
| if (IsScalar(field.value.type.base_type)) { |
| code += "()"; |
| member_suffix += ""; |
| if (struct_def.fixed) { |
| code += " { return " + getter; |
| code += "(bb_pos + "; |
| code += NumToString(field.value.offset) + ")"; |
| code += dest_mask; |
| } else { |
| code += offset_prefix + getter; |
| code += "(o + bb_pos)" + dest_mask; |
| code += " : " + default_cast; |
| code += GenDefaultValue(field); |
| } |
| } else { |
| switch (field.value.type.base_type) { |
| case BASE_TYPE_STRUCT: |
| code += "(" + type_name + " obj)"; |
| if (struct_def.fixed) { |
| code += " { return " + obj + ".__assign("; |
| code += "bb_pos + " + NumToString(field.value.offset) + ", "; |
| code += "bb)"; |
| } else { |
| code += offset_prefix + conditional_cast; |
| code += obj + ".__assign("; |
| code += field.value.type.struct_def->fixed |
| ? "o + bb_pos" |
| : "__indirect(o + bb_pos)"; |
| code += ", bb) : null"; |
| } |
| break; |
| case BASE_TYPE_STRING: |
| code += "()"; |
| member_suffix += ""; |
| code += offset_prefix + getter + "(o + "; |
| code += "bb_pos) : null"; |
| break; |
| case BASE_TYPE_ARRAY: FLATBUFFERS_FALLTHROUGH(); // fall thru |
| case BASE_TYPE_VECTOR: { |
| auto vectortype = field.value.type.VectorType(); |
| code += "("; |
| if (vectortype.base_type == BASE_TYPE_STRUCT) { |
| code += type_name + " obj, "; |
| getter = obj + ".__assign"; |
| } else if (vectortype.base_type == BASE_TYPE_UNION) { |
| code += type_name + " obj, "; |
| } |
| code += "int j)"; |
| const auto body = offset_prefix + conditional_cast + getter + "("; |
| if (vectortype.base_type == BASE_TYPE_UNION) { |
| code += body + "obj, "; |
| } else { |
| code += body; |
| } |
| std::string index; |
| if (IsArray(field.value.type)) { |
| index += "bb_pos + " + NumToString(field.value.offset) + " + "; |
| } else { |
| index += "__vector(o) + "; |
| } |
| index += "j * " + NumToString(InlineSize(vectortype)); |
| if (vectortype.base_type == BASE_TYPE_STRUCT) { |
| code += vectortype.struct_def->fixed |
| ? index |
| : "__indirect(" + index + ")"; |
| code += ", bb"; |
| } else { |
| code += index; |
| } |
| code += ")" + dest_mask; |
| if (!IsArray(field.value.type)) { |
| code += " : "; |
| code += |
| field.value.type.element == BASE_TYPE_BOOL |
| ? "false" |
| : (IsScalar(field.value.type.element) ? default_cast + "0" |
| : "null"); |
| } |
| |
| break; |
| } |
| case BASE_TYPE_UNION: |
| code += "(" + type_name + " obj)" + offset_prefix + getter; |
| code += "(obj, o + bb_pos) : null"; |
| break; |
| default: FLATBUFFERS_ASSERT(0); |
| } |
| } |
| code += member_suffix; |
| code += "}\n"; |
| if (field.value.type.base_type == BASE_TYPE_VECTOR) { |
| code += " public int " + MakeCamel(field.name, false); |
| code += "Length"; |
| code += "()"; |
| code += offset_prefix; |
| code += "__vector_len(o) : 0; "; |
| code += ""; |
| code += "}\n"; |
| // See if we should generate a by-key accessor. |
| if (field.value.type.element == BASE_TYPE_STRUCT && |
| !field.value.type.struct_def->fixed) { |
| auto &sd = *field.value.type.struct_def; |
| auto &fields = sd.fields.vec; |
| for (auto kit = fields.begin(); kit != fields.end(); ++kit) { |
| auto &key_field = **kit; |
| if (key_field.key) { |
| auto qualified_name = WrapInNameSpace(sd); |
| code += " public " + qualified_name + " "; |
| code += MakeCamel(field.name, false) + "ByKey("; |
| code += GenTypeNameDest(key_field.value.type) + " key)"; |
| code += offset_prefix; |
| code += qualified_name + ".__lookup_by_key("; |
| code += "null, "; |
| code += "__vector(o), key, "; |
| code += "bb) : null; "; |
| code += "}\n"; |
| code += " public " + qualified_name + " "; |
| code += MakeCamel(field.name, false) + "ByKey("; |
| code += qualified_name + " obj, "; |
| code += GenTypeNameDest(key_field.value.type) + " key)"; |
| code += offset_prefix; |
| code += qualified_name + ".__lookup_by_key(obj, "; |
| code += "__vector(o), key, "; |
| code += "bb) : null; "; |
| code += "}\n"; |
| break; |
| } |
| } |
| } |
| } |
| // Generate the accessors for vector of structs with vector access object |
| if (field.value.type.base_type == BASE_TYPE_VECTOR) { |
| std::string vector_type_name; |
| const auto &element_base_type = field.value.type.VectorType().base_type; |
| if (IsScalar(element_base_type)) { |
| vector_type_name = MakeCamel(type_name, true) + "Vector"; |
| } else if (element_base_type == BASE_TYPE_STRING) { |
| vector_type_name = "StringVector"; |
| } else if (element_base_type == BASE_TYPE_UNION) { |
| vector_type_name = "UnionVector"; |
| } else { |
| vector_type_name = type_name + ".Vector"; |
| } |
| auto vector_method_start = GenNullableAnnotation(field.value.type) + |
| " public " + vector_type_name + optional + |
| " " + MakeCamel(field.name, false) + |
| "Vector"; |
| code += vector_method_start + "() { return "; |
| code += MakeCamel(field.name, false) + "Vector"; |
| code += "(new " + vector_type_name + "()); }\n"; |
| code += vector_method_start + "(" + vector_type_name + " obj)"; |
| code += offset_prefix + conditional_cast + obj + ".__assign("; |
| code += "__vector(o), "; |
| if (!IsScalar(element_base_type)) { |
| auto vectortype = field.value.type.VectorType(); |
| code += NumToString(InlineSize(vectortype)) + ", "; |
| } |
| code += "bb) : null" + member_suffix + "}\n"; |
| } |
| // Generate a ByteBuffer accessor for strings & vectors of scalars. |
| if ((field.value.type.base_type == BASE_TYPE_VECTOR && |
| IsScalar(field.value.type.VectorType().base_type)) || |
| field.value.type.base_type == BASE_TYPE_STRING) { |
| code += " public ByteBuffer "; |
| code += MakeCamel(field.name, false); |
| code += "AsByteBuffer() { return "; |
| code += "__vector_as_bytebuffer("; |
| code += NumToString(field.value.offset) + ", "; |
| code += NumToString(field.value.type.base_type == BASE_TYPE_STRING |
| ? 1 |
| : InlineSize(field.value.type.VectorType())); |
| code += "); }\n"; |
| code += " public ByteBuffer "; |
| code += MakeCamel(field.name, false); |
| code += "InByteBuffer(ByteBuffer _bb) { return "; |
| code += "__vector_in_bytebuffer(_bb, "; |
| code += NumToString(field.value.offset) + ", "; |
| code += NumToString(field.value.type.base_type == BASE_TYPE_STRING |
| ? 1 |
| : InlineSize(field.value.type.VectorType())); |
| code += "); }\n"; |
| } |
| // generate object accessors if is nested_flatbuffer |
| if (field.nested_flatbuffer) { |
| auto nested_type_name = WrapInNameSpace(*field.nested_flatbuffer); |
| auto nested_method_name = |
| MakeCamel(field.name, false) + "As" + field.nested_flatbuffer->name; |
| auto get_nested_method_name = nested_method_name; |
| code += " public " + nested_type_name + " "; |
| code += nested_method_name + "() { return "; |
| code += |
| get_nested_method_name + "(new " + nested_type_name + "()); }\n"; |
| code += " public " + nested_type_name + " "; |
| code += get_nested_method_name + "("; |
| code += nested_type_name + " obj"; |
| code += ") { int o = __offset("; |
| code += NumToString(field.value.offset) + "); "; |
| code += "return o != 0 ? " + conditional_cast + obj + ".__assign("; |
| code += ""; |
| code += "__indirect(__vector(o)), "; |
| code += "bb) : null; }\n"; |
| } |
| // Generate mutators for scalar fields or vectors of scalars. |
| if (parser_.opts.mutable_buffer) { |
| auto is_series = (IsSeries(field.value.type)); |
| const auto &underlying_type = |
| is_series ? field.value.type.VectorType() : field.value.type; |
| // Boolean parameters have to be explicitly converted to byte |
| // representation. |
| auto setter_parameter = underlying_type.base_type == BASE_TYPE_BOOL |
| ? "(byte)(" + field.name + " ? 1 : 0)" |
| : field.name; |
| auto mutator_prefix = MakeCamel("mutate", false); |
| // A vector mutator also needs the index of the vector element it should |
| // mutate. |
| auto mutator_params = (is_series ? "(int j, " : "(") + |
| GenTypeNameDest(underlying_type) + " " + |
| field.name + ") { "; |
| auto setter_index = |
| is_series |
| ? (IsArray(field.value.type) |
| ? "bb_pos + " + NumToString(field.value.offset) |
| : "__vector(o)") + |
| +" + j * " + NumToString(InlineSize(underlying_type)) |
| : (struct_def.fixed |
| ? "bb_pos + " + NumToString(field.value.offset) |
| : "o + bb_pos"); |
| if (IsScalar(underlying_type.base_type) && !IsUnion(field.value.type)) { |
| code += " public "; |
| code += struct_def.fixed ? "void " : "boolean "; |
| code += mutator_prefix + MakeCamel(field.name, true); |
| code += mutator_params; |
| if (struct_def.fixed) { |
| code += GenSetter(underlying_type) + "(" + setter_index + ", "; |
| code += src_cast + setter_parameter + "); }\n"; |
| } else { |
| code += "int o = __offset("; |
| code += NumToString(field.value.offset) + ");"; |
| code += " if (o != 0) { " + GenSetter(underlying_type); |
| code += "(" + setter_index + ", " + src_cast + setter_parameter + |
| "); return true; } else { return false; } }\n"; |
| } |
| } |
| } |
| if (parser_.opts.java_primitive_has_method && |
| IsScalar(field.value.type.base_type) && !struct_def.fixed) { |
| auto vt_offset_constant = " public static final int VT_" + |
| MakeScreamingCamel(field.name) + " = " + |
| NumToString(field.value.offset) + ";"; |
| |
| code += vt_offset_constant; |
| code += "\n"; |
| } |
| } |
| code += "\n"; |
| flatbuffers::FieldDef *key_field = nullptr; |
| if (struct_def.fixed) { |
| // create a struct constructor function |
| code += " public static " + GenOffsetType() + " "; |
| code += "create"; |
| code += struct_def.name + "(FlatBufferBuilder builder"; |
| GenStructArgs(struct_def, code_ptr, ""); |
| code += ") {\n"; |
| GenStructBody(struct_def, code_ptr, ""); |
| code += " return "; |
| code += GenOffsetConstruct("builder." + std::string("offset()")); |
| code += ";\n }\n"; |
| } else { |
| // Generate a method that creates a table in one go. This is only possible |
| // when the table has no struct fields, since those have to be created |
| // inline, and there's no way to do so in Java. |
| bool has_no_struct_fields = true; |
| int num_fields = 0; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| if (IsStruct(field.value.type)) { |
| has_no_struct_fields = false; |
| } else { |
| num_fields++; |
| } |
| } |
| // JVM specifications restrict default constructor params to be < 255. |
| // Longs and doubles take up 2 units, so we set the limit to be < 127. |
| if (has_no_struct_fields && num_fields && num_fields < 127) { |
| // Generate a table constructor of the form: |
| // public static int createName(FlatBufferBuilder builder, args...) |
| code += " public static " + GenOffsetType() + " "; |
| code += "create" + struct_def.name; |
| code += "(FlatBufferBuilder builder"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| code += ",\n "; |
| code += GenTypeBasic(DestinationType(field.value.type, false)); |
| code += " "; |
| code += field.name; |
| if (!IsScalar(field.value.type.base_type)) code += "Offset"; |
| } |
| code += ") {\n builder."; |
| code += "startTable("; |
| code += NumToString(struct_def.fields.vec.size()) + ");\n"; |
| for (size_t size = struct_def.sortbysize ? sizeof(largest_scalar_t) : 1; |
| size; size /= 2) { |
| for (auto it = struct_def.fields.vec.rbegin(); |
| it != struct_def.fields.vec.rend(); ++it) { |
| auto &field = **it; |
| if (!field.deprecated && |
| (!struct_def.sortbysize || |
| size == SizeOf(field.value.type.base_type))) { |
| code += " " + struct_def.name + "."; |
| code += "add"; |
| code += MakeCamel(field.name) + "(builder, " + field.name; |
| if (!IsScalar(field.value.type.base_type)) code += "Offset"; |
| code += ");\n"; |
| } |
| } |
| } |
| code += " return " + struct_def.name + "."; |
| code += "end" + struct_def.name; |
| code += "(builder);\n }\n\n"; |
| } |
| // Generate a set of static methods that allow table construction, |
| // of the form: |
| // public static void addName(FlatBufferBuilder builder, short name) |
| // { builder.addShort(id, name, default); } |
| // Unlike the Create function, these always work. |
| code += " public static void start"; |
| code += struct_def.name; |
| code += "(FlatBufferBuilder builder) { builder."; |
| code += "startTable("; |
| code += NumToString(struct_def.fields.vec.size()) + "); }\n"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (field.deprecated) continue; |
| if (field.key) key_field = &field; |
| code += " public static void add"; |
| code += MakeCamel(field.name); |
| code += "(FlatBufferBuilder builder, "; |
| code += GenTypeBasic(DestinationType(field.value.type, false)); |
| auto argname = MakeCamel(field.name, false); |
| if (!IsScalar(field.value.type.base_type)) argname += "Offset"; |
| code += " " + argname + ") { builder.add"; |
| code += GenMethod(field.value.type) + "("; |
| code += NumToString(it - struct_def.fields.vec.begin()) + ", "; |
| code += SourceCastBasic(field.value.type); |
| code += argname; |
| code += ", "; |
| code += SourceCastBasic(field.value.type); |
| code += GenDefaultValue(field); |
| code += "); }\n"; |
| if (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)) { |
| // generate a method to create a vector from a java array. |
| if ((vector_type.base_type == BASE_TYPE_CHAR || |
| vector_type.base_type == BASE_TYPE_UCHAR)) { |
| // Handle byte[] and ByteBuffers separately for Java |
| code += " public static " + GenVectorOffsetType() + " "; |
| code += "create"; |
| code += MakeCamel(field.name); |
| code += "Vector(FlatBufferBuilder builder, byte[] data) "; |
| code += "{ return builder.createByteVector(data); }\n"; |
| |
| code += " public static " + GenVectorOffsetType() + " "; |
| code += "create"; |
| code += MakeCamel(field.name); |
| code += "Vector(FlatBufferBuilder builder, ByteBuffer data) "; |
| code += "{ return builder.createByteVector(data); }\n"; |
| } else { |
| code += " public static " + GenVectorOffsetType() + " "; |
| code += "create"; |
| code += MakeCamel(field.name); |
| code += "Vector(FlatBufferBuilder builder, "; |
| code += GenTypeBasic(vector_type) + "[] data) "; |
| code += "{ builder.startVector("; |
| code += NumToString(elem_size); |
| code += ", data.length, "; |
| code += NumToString(alignment); |
| code += "); for (int i = data."; |
| code += "length - 1; i >= 0; i--) builder."; |
| code += "add"; |
| code += GenMethod(vector_type); |
| code += "("; |
| code += SourceCastBasic(vector_type, false); |
| code += "data[i]"; |
| code += "); return "; |
| code += "builder.endVector(); }\n"; |
| } |
| } |
| // Generate a method to start a vector, data to be added manually |
| // after. |
| code += " public static void start"; |
| code += MakeCamel(field.name); |
| code += "Vector(FlatBufferBuilder builder, int numElems) "; |
| code += "{ builder.startVector("; |
| code += NumToString(elem_size); |
| code += ", numElems, " + NumToString(alignment); |
| code += "); }\n"; |
| } |
| } |
| code += " public static " + GenOffsetType() + " "; |
| code += "end" + struct_def.name; |
| code += "(FlatBufferBuilder builder) {\n int o = builder."; |
| code += "endTable();\n"; |
| for (auto it = struct_def.fields.vec.begin(); |
| it != struct_def.fields.vec.end(); ++it) { |
| auto &field = **it; |
| if (!field.deprecated && field.required) { |
| code += " builder.required(o, "; |
| code += NumToString(field.value.offset); |
| code += "); // " + field.name + "\n"; |
| } |
| } |
| code += " return " + GenOffsetConstruct("o") + ";\n }\n"; |
| if (parser_.root_struct_def_ == &struct_def) { |
| std::string size_prefix[] = { "", "SizePrefixed" }; |
| for (int i = 0; i < 2; ++i) { |
| code += " public static void "; |
| code += "finish" + size_prefix[i] + struct_def.name; |
| code += "Buffer(FlatBufferBuilder builder, " + GenOffsetType(); |
| code += " offset) {"; |
| code += " builder.finish" + size_prefix[i] + "(offset"; |
| |
| if (parser_.file_identifier_.length()) |
| code += ", \"" + parser_.file_identifier_ + "\""; |
| code += "); }\n"; |
| } |
| } |
| } |
| // Only generate key compare function for table, |
| // because `key_field` is not set for struct |
| if (struct_def.has_key && !struct_def.fixed) { |
| FLATBUFFERS_ASSERT(key_field); |
| code += "\n @Override\n protected int keysCompare("; |
| code += "Integer o1, Integer o2, ByteBuffer _bb) {"; |
| code += GenKeyGetter(key_field); |
| code += " }\n"; |
| |
| code += "\n public static " + struct_def.name; |
| code += " __lookup_by_key("; |
| code += struct_def.name + " obj, "; |
| code += "int vectorLocation, "; |
| code += GenTypeNameDest(key_field->value.type); |
| code += " key, ByteBuffer bb) {\n"; |
| if (key_field->value.type.base_type == BASE_TYPE_STRING) { |
| code += " byte[] byteKey = "; |
| code += "key.getBytes(java.nio.charset.StandardCharsets.UTF_8);\n"; |
| } |
| code += " int span = "; |
| code += "bb.getInt(vectorLocation - 4);\n"; |
| code += " int start = 0;\n"; |
| code += " while (span != 0) {\n"; |
| code += " int middle = span / 2;\n"; |
| code += GenLookupKeyGetter(key_field); |
| code += " if (comp > 0) {\n"; |
| code += " span = middle;\n"; |
| code += " } else if (comp < 0) {\n"; |
| code += " middle++;\n"; |
| code += " start += middle;\n"; |
| code += " span -= middle;\n"; |
| code += " } else {\n"; |
| code += " return "; |
| code += "(obj == null ? new " + struct_def.name + "() : obj)"; |
| code += ".__assign(tableOffset, bb);\n"; |
| code += " }\n }\n"; |
| code += " return null;\n"; |
| code += " }\n"; |
| } |
| GenVectorAccessObject(struct_def, code_ptr); |
| code += "}"; |
| code += "\n\n"; |
| } |
| |
| void GenVectorAccessObject(StructDef &struct_def, |
| std::string *code_ptr) const { |
| auto &code = *code_ptr; |
| // Generate a vector of structs accessor class. |
| code += "\n"; |
| code += " "; |
| if (!struct_def.attributes.Lookup("private")) code += "public "; |
| code += "static "; |
| code += "final "; |
| code += "class Vector extends "; |
| code += "BaseVector {\n"; |
| |
| // Generate the __assign method that sets the field in a pre-existing |
| // accessor object. This is to allow object reuse. |
| std::string method_indent = " "; |
| code += method_indent + "public Vector "; |
| code += "__assign(int _vector, int _element_size, ByteBuffer _bb) { "; |
| code += "__reset(_vector, _element_size, _bb); return this; }\n\n"; |
| |
| auto type_name = struct_def.name; |
| auto method_start = method_indent + "public " + type_name + " get"; |
| // Generate the accessors that don't do object reuse. |
| code += method_start + "(int j) { return get"; |
| code += "(new " + type_name + "(), j); }\n"; |
| code += method_start + "(" + type_name + " obj, int j) { "; |
| code += " return obj.__assign("; |
| std::string index = "__element(j)"; |
| code += struct_def.fixed ? index : "__indirect(" + index + ", bb)"; |
| code += ", bb); }\n"; |
| // See if we should generate a by-key accessor. |
| if (!struct_def.fixed) { |
| auto &fields = struct_def.fields.vec; |
| for (auto kit = fields.begin(); kit != fields.end(); ++kit) { |
| auto &key_field = **kit; |
| if (key_field.key) { |
| auto nullable_annotation = |
| parser_.opts.gen_nullable ? "@Nullable " : ""; |
| code += method_indent + nullable_annotation; |
| code += "public " + type_name + " "; |
| code += "getByKey("; |
| code += GenTypeNameDest(key_field.value.type) + " key) { "; |
| code += " return __lookup_by_key(null, "; |
| code += "__vector(), key, "; |
| code += "bb); "; |
| code += "}\n"; |
| code += method_indent + nullable_annotation; |
| code += "public " + type_name + " "; |
| code += "getByKey("; |
| code += type_name + " obj, "; |
| code += GenTypeNameDest(key_field.value.type) + " key) { "; |
| code += " return __lookup_by_key(obj, "; |
| code += "__vector(), key, "; |
| code += "bb); "; |
| code += "}\n"; |
| break; |
| } |
| } |
| } |
| code += " }\n"; |
| } |
| |
| // This tracks the current namespace used to determine if a type need to be |
| // prefixed by its namespace |
| const Namespace *cur_name_space_; |
| }; |
| } // namespace java |
| |
| bool GenerateJava(const Parser &parser, const std::string &path, |
| const std::string &file_name) { |
| java::JavaGenerator generator(parser, path, file_name); |
| return generator.generate(); |
| } |
| |
| } // namespace flatbuffers |
