Bo Yang | 5db2173 | 2015-05-21 14:28:59 -0700 | [diff] [blame] | 1 | // Protocol Buffers - Google's data interchange format |
| 2 | // Copyright 2008 Google Inc. All rights reserved. |
| 3 | // https://developers.google.com/protocol-buffers/ |
| 4 | // |
| 5 | // Redistribution and use in source and binary forms, with or without |
| 6 | // modification, are permitted provided that the following conditions are |
| 7 | // met: |
| 8 | // |
| 9 | // * Redistributions of source code must retain the above copyright |
| 10 | // notice, this list of conditions and the following disclaimer. |
| 11 | // * Redistributions in binary form must reproduce the above |
| 12 | // copyright notice, this list of conditions and the following disclaimer |
| 13 | // in the documentation and/or other materials provided with the |
| 14 | // distribution. |
| 15 | // * Neither the name of Google Inc. nor the names of its |
| 16 | // contributors may be used to endorse or promote products derived from |
| 17 | // this software without specific prior written permission. |
| 18 | // |
| 19 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 23 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 25 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 26 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 27 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 29 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | |
| 31 | // Author: dweis@google.com (Daniel Weis) |
| 32 | // Based on original Protocol Buffers design by |
| 33 | // Sanjay Ghemawat, Jeff Dean, and others. |
| 34 | |
| 35 | #include <google/protobuf/compiler/java/java_message_builder_lite.h> |
| 36 | |
| 37 | #include <algorithm> |
| 38 | #include <google/protobuf/stubs/hash.h> |
| 39 | #include <map> |
| 40 | #include <memory> |
| 41 | #ifndef _SHARED_PTR_H |
| 42 | #include <google/protobuf/stubs/shared_ptr.h> |
| 43 | #endif |
| 44 | #include <vector> |
| 45 | |
| 46 | #include <google/protobuf/compiler/java/java_context.h> |
| 47 | #include <google/protobuf/compiler/java/java_doc_comment.h> |
| 48 | #include <google/protobuf/compiler/java/java_enum.h> |
| 49 | #include <google/protobuf/compiler/java/java_extension.h> |
| 50 | #include <google/protobuf/compiler/java/java_generator_factory.h> |
| 51 | #include <google/protobuf/compiler/java/java_helpers.h> |
| 52 | #include <google/protobuf/compiler/java/java_name_resolver.h> |
| 53 | #include <google/protobuf/io/coded_stream.h> |
| 54 | #include <google/protobuf/io/printer.h> |
| 55 | #include <google/protobuf/descriptor.pb.h> |
| 56 | #include <google/protobuf/wire_format.h> |
| 57 | #include <google/protobuf/stubs/strutil.h> |
| 58 | #include <google/protobuf/stubs/substitute.h> |
| 59 | |
| 60 | namespace google { |
| 61 | namespace protobuf { |
| 62 | namespace compiler { |
| 63 | namespace java { |
| 64 | |
| 65 | namespace { |
| 66 | bool GenerateHasBits(const Descriptor* descriptor) { |
| 67 | return SupportFieldPresence(descriptor->file()) || |
| 68 | HasRepeatedFields(descriptor); |
| 69 | } |
| 70 | |
| 71 | string MapValueImmutableClassdName(const Descriptor* descriptor, |
| 72 | ClassNameResolver* name_resolver) { |
| 73 | const FieldDescriptor* value_field = descriptor->FindFieldByName("value"); |
| 74 | GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, value_field->type()); |
| 75 | return name_resolver->GetImmutableClassName(value_field->message_type()); |
| 76 | } |
| 77 | } // namespace |
| 78 | |
| 79 | MessageBuilderLiteGenerator::MessageBuilderLiteGenerator( |
| 80 | const Descriptor* descriptor, Context* context) |
| 81 | : descriptor_(descriptor), context_(context), |
| 82 | name_resolver_(context->GetNameResolver()), |
| 83 | field_generators_(descriptor, context_) { |
Jisi Liu | 3b3c8ab | 2016-03-30 11:39:59 -0700 | [diff] [blame] | 84 | GOOGLE_CHECK(!HasDescriptorMethods(descriptor->file(), context->EnforceLite())) |
| 85 | << "Generator factory error: A lite message generator is used to " |
| 86 | "generate non-lite messages."; |
Bo Yang | 5db2173 | 2015-05-21 14:28:59 -0700 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | MessageBuilderLiteGenerator::~MessageBuilderLiteGenerator() {} |
| 90 | |
| 91 | void MessageBuilderLiteGenerator:: |
| 92 | Generate(io::Printer* printer) { |
| 93 | WriteMessageDocComment(printer, descriptor_); |
| 94 | printer->Print( |
| 95 | "public static final class Builder extends\n" |
| 96 | " com.google.protobuf.GeneratedMessageLite.$extendible$Builder<\n" |
| 97 | " $classname$, Builder> implements\n" |
| 98 | " $extra_interfaces$\n" |
| 99 | " $classname$OrBuilder {\n", |
| 100 | "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| 101 | "extra_interfaces", ExtraBuilderInterfaces(descriptor_), |
| 102 | "extendible", |
| 103 | descriptor_->extension_range_count() > 0 ? "Extendable" : ""); |
| 104 | printer->Indent(); |
| 105 | |
| 106 | GenerateCommonBuilderMethods(printer); |
| 107 | |
| 108 | // oneof |
| 109 | map<string, string> vars; |
| 110 | for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| 111 | vars["oneof_name"] = context_->GetOneofGeneratorInfo( |
| 112 | descriptor_->oneof_decl(i))->name; |
| 113 | vars["oneof_capitalized_name"] = context_->GetOneofGeneratorInfo( |
| 114 | descriptor_->oneof_decl(i))->capitalized_name; |
| 115 | vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index()); |
| 116 | |
| 117 | // oneofCase() and clearOneof() |
| 118 | printer->Print(vars, |
| 119 | "public $oneof_capitalized_name$Case\n" |
| 120 | " get$oneof_capitalized_name$Case() {\n" |
| 121 | " return instance.get$oneof_capitalized_name$Case();\n" |
| 122 | "}\n" |
| 123 | "\n" |
| 124 | "public Builder clear$oneof_capitalized_name$() {\n" |
| 125 | " copyOnWrite();\n" |
| 126 | " instance.clear$oneof_capitalized_name$();\n" |
| 127 | " return this;\n" |
| 128 | "}\n" |
| 129 | "\n"); |
| 130 | } |
| 131 | |
| 132 | if (GenerateHasBits(descriptor_)) { |
| 133 | // Integers for bit fields. |
| 134 | int totalBits = 0; |
| 135 | for (int i = 0; i < descriptor_->field_count(); i++) { |
| 136 | totalBits += field_generators_.get(descriptor_->field(i)) |
| 137 | .GetNumBitsForBuilder(); |
| 138 | } |
| 139 | int totalInts = (totalBits + 31) / 32; |
| 140 | for (int i = 0; i < totalInts; i++) { |
| 141 | printer->Print("private int $bit_field_name$;\n", |
| 142 | "bit_field_name", GetBitFieldName(i)); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | for (int i = 0; i < descriptor_->field_count(); i++) { |
| 147 | printer->Print("\n"); |
| 148 | field_generators_.get(descriptor_->field(i)) |
| 149 | .GenerateBuilderMembers(printer); |
| 150 | } |
| 151 | |
Bo Yang | 5db2173 | 2015-05-21 14:28:59 -0700 | [diff] [blame] | 152 | printer->Print( |
| 153 | "\n" |
| 154 | "// @@protoc_insertion_point(builder_scope:$full_name$)\n", |
| 155 | "full_name", descriptor_->full_name()); |
| 156 | |
| 157 | printer->Outdent(); |
| 158 | printer->Print("}\n"); |
| 159 | } |
| 160 | |
| 161 | // =================================================================== |
| 162 | |
| 163 | void MessageBuilderLiteGenerator:: |
| 164 | GenerateCommonBuilderMethods(io::Printer* printer) { |
| 165 | printer->Print( |
| 166 | "// Construct using $classname$.newBuilder()\n" |
| 167 | "private Builder() {\n" |
| 168 | " super(DEFAULT_INSTANCE);\n" |
| 169 | "}\n" |
| 170 | "\n", |
| 171 | "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| 172 | } |
| 173 | |
| 174 | // =================================================================== |
| 175 | |
| 176 | } // namespace java |
| 177 | } // namespace compiler |
| 178 | } // namespace protobuf |
| 179 | } // namespace google |