| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Author: dweis@google.com (Daniel Weis) |
| // Based on original Protocol Buffers design by |
| // Sanjay Ghemawat, Jeff Dean, and others. |
| |
| #include <google/protobuf/compiler/java/java_message_builder.h> |
| |
| #include <algorithm> |
| #include <google/protobuf/stubs/hash.h> |
| #include <map> |
| #include <memory> |
| #include <vector> |
| |
| #include <google/protobuf/compiler/java/java_context.h> |
| #include <google/protobuf/compiler/java/java_doc_comment.h> |
| #include <google/protobuf/compiler/java/java_enum.h> |
| #include <google/protobuf/compiler/java/java_extension.h> |
| #include <google/protobuf/compiler/java/java_generator_factory.h> |
| #include <google/protobuf/compiler/java/java_helpers.h> |
| #include <google/protobuf/compiler/java/java_name_resolver.h> |
| #include <google/protobuf/descriptor.pb.h> |
| #include <google/protobuf/io/coded_stream.h> |
| #include <google/protobuf/io/printer.h> |
| #include <google/protobuf/wire_format.h> |
| #include <google/protobuf/stubs/substitute.h> |
| #include <google/protobuf/stubs/strutil.h> |
| |
| |
| namespace google { |
| namespace protobuf { |
| namespace compiler { |
| namespace java { |
| |
| namespace { |
| bool GenerateHasBits(const Descriptor* descriptor) { |
| return SupportFieldPresence(descriptor->file()) || |
| HasRepeatedFields(descriptor); |
| } |
| |
| string MapValueImmutableClassdName(const Descriptor* descriptor, |
| ClassNameResolver* name_resolver) { |
| const FieldDescriptor* value_field = descriptor->FindFieldByName("value"); |
| GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, value_field->type()); |
| return name_resolver->GetImmutableClassName(value_field->message_type()); |
| } |
| } // namespace |
| |
| MessageBuilderGenerator::MessageBuilderGenerator( |
| const Descriptor* descriptor, Context* context) |
| : descriptor_(descriptor), context_(context), |
| name_resolver_(context->GetNameResolver()), |
| field_generators_(descriptor, context_) { |
| GOOGLE_CHECK(HasDescriptorMethods(descriptor->file(), context->EnforceLite())) |
| << "Generator factory error: A non-lite message generator is used to " |
| "generate lite messages."; |
| } |
| |
| MessageBuilderGenerator::~MessageBuilderGenerator() {} |
| |
| void MessageBuilderGenerator:: |
| Generate(io::Printer* printer) { |
| WriteMessageDocComment(printer, descriptor_); |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "public static final class Builder extends\n" |
| " com.google.protobuf.GeneratedMessage$ver$.ExtendableBuilder<\n" |
| " $classname$, Builder> implements\n" |
| " $extra_interfaces$\n" |
| " $classname$OrBuilder {\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "extra_interfaces", ExtraBuilderInterfaces(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| } else { |
| printer->Print( |
| "public static final class Builder extends\n" |
| " com.google.protobuf.GeneratedMessage$ver$.Builder<Builder> implements\n" |
| " $extra_interfaces$\n" |
| " $classname$OrBuilder {\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "extra_interfaces", ExtraBuilderInterfaces(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| } |
| printer->Indent(); |
| |
| GenerateDescriptorMethods(printer); |
| GenerateCommonBuilderMethods(printer); |
| |
| if (context_->HasGeneratedMethods(descriptor_)) { |
| GenerateIsInitialized(printer); |
| GenerateBuilderParsingMethods(printer); |
| } |
| |
| // oneof |
| std::map<string, string> vars; |
| for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| vars["oneof_name"] = context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->name; |
| vars["oneof_capitalized_name"] = context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->capitalized_name; |
| vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index()); |
| // oneofCase_ and oneof_ |
| printer->Print(vars, |
| "private int $oneof_name$Case_ = 0;\n" |
| "private java.lang.Object $oneof_name$_;\n"); |
| // oneofCase() and clearOneof() |
| printer->Print(vars, |
| "public $oneof_capitalized_name$Case\n" |
| " get$oneof_capitalized_name$Case() {\n" |
| " return $oneof_capitalized_name$Case.forNumber(\n" |
| " $oneof_name$Case_);\n" |
| "}\n" |
| "\n" |
| "public Builder clear$oneof_capitalized_name$() {\n" |
| " $oneof_name$Case_ = 0;\n" |
| " $oneof_name$_ = null;\n"); |
| printer->Print(" onChanged();\n"); |
| printer->Print( |
| " return this;\n" |
| "}\n" |
| "\n"); |
| } |
| |
| if (GenerateHasBits(descriptor_)) { |
| // Integers for bit fields. |
| int totalBits = 0; |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| totalBits += field_generators_.get(descriptor_->field(i)) |
| .GetNumBitsForBuilder(); |
| } |
| int totalInts = (totalBits + 31) / 32; |
| for (int i = 0; i < totalInts; i++) { |
| printer->Print("private int $bit_field_name$;\n", |
| "bit_field_name", GetBitFieldName(i)); |
| } |
| } |
| |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| printer->Print("\n"); |
| field_generators_.get(descriptor_->field(i)) |
| .GenerateBuilderMembers(printer); |
| } |
| |
| bool is_proto3 = |
| descriptor_->file()->syntax() == FileDescriptor::SYNTAX_PROTO3; |
| // Override methods declared in GeneratedMessage to return the concrete |
| // generated type so callsites won't depend on GeneratedMessage. This |
| // is needed to keep binary compatibility when we change generated code |
| // to subclass a different GeneratedMessage class (e.g., in v3.0.0 release |
| // we changed all generated code to subclass GeneratedMessageV3). |
| printer->Print( |
| "@java.lang.Override\n" |
| "public final Builder setUnknownFields(\n" |
| " final com.google.protobuf.UnknownFieldSet unknownFields) {\n" |
| " return super.setUnknownFields$suffix$(unknownFields);\n" |
| "}\n" |
| "\n" |
| "@java.lang.Override\n" |
| "public final Builder mergeUnknownFields(\n" |
| " final com.google.protobuf.UnknownFieldSet unknownFields) {\n" |
| " return super.mergeUnknownFields(unknownFields);\n" |
| "}\n" |
| "\n", |
| "suffix", is_proto3 ? "Proto3" : ""); |
| |
| printer->Print( |
| "\n" |
| "// @@protoc_insertion_point(builder_scope:$full_name$)\n", |
| "full_name", descriptor_->full_name()); |
| |
| printer->Outdent(); |
| printer->Print("}\n"); |
| } |
| |
| // =================================================================== |
| |
| void MessageBuilderGenerator:: |
| GenerateDescriptorMethods(io::Printer* printer) { |
| if (!descriptor_->options().no_standard_descriptor_accessor()) { |
| printer->Print( |
| "public static final com.google.protobuf.Descriptors.Descriptor\n" |
| " getDescriptor() {\n" |
| " return $fileclass$.internal_$identifier$_descriptor;\n" |
| "}\n" |
| "\n", |
| "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), |
| "identifier", UniqueFileScopeIdentifier(descriptor_)); |
| } |
| std::vector<const FieldDescriptor*> map_fields; |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| if (GetJavaType(field) == JAVATYPE_MESSAGE && |
| IsMapEntry(field->message_type())) { |
| map_fields.push_back(field); |
| } |
| } |
| if (!map_fields.empty()) { |
| printer->Print( |
| "@SuppressWarnings({\"rawtypes\"})\n" |
| "protected com.google.protobuf.MapField internalGetMapField(\n" |
| " int number) {\n" |
| " switch (number) {\n"); |
| printer->Indent(); |
| printer->Indent(); |
| for (int i = 0; i < map_fields.size(); ++i) { |
| const FieldDescriptor* field = map_fields[i]; |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| printer->Print( |
| "case $number$:\n" |
| " return internalGet$capitalized_name$();\n", |
| "number", SimpleItoa(field->number()), |
| "capitalized_name", info->capitalized_name); |
| } |
| printer->Print( |
| "default:\n" |
| " throw new RuntimeException(\n" |
| " \"Invalid map field number: \" + number);\n"); |
| printer->Outdent(); |
| printer->Outdent(); |
| printer->Print( |
| " }\n" |
| "}\n"); |
| printer->Print( |
| "@SuppressWarnings({\"rawtypes\"})\n" |
| "protected com.google.protobuf.MapField internalGetMutableMapField(\n" |
| " int number) {\n" |
| " switch (number) {\n"); |
| printer->Indent(); |
| printer->Indent(); |
| for (int i = 0; i < map_fields.size(); ++i) { |
| const FieldDescriptor* field = map_fields[i]; |
| const FieldGeneratorInfo* info = |
| context_->GetFieldGeneratorInfo(field); |
| printer->Print( |
| "case $number$:\n" |
| " return internalGetMutable$capitalized_name$();\n", |
| "number", SimpleItoa(field->number()), |
| "capitalized_name", info->capitalized_name); |
| } |
| printer->Print( |
| "default:\n" |
| " throw new RuntimeException(\n" |
| " \"Invalid map field number: \" + number);\n"); |
| printer->Outdent(); |
| printer->Outdent(); |
| printer->Print( |
| " }\n" |
| "}\n"); |
| } |
| printer->Print( |
| "@java.lang.Override\n" |
| "protected com.google.protobuf.GeneratedMessage$ver$.FieldAccessorTable\n" |
| " internalGetFieldAccessorTable() {\n" |
| " return $fileclass$.internal_$identifier$_fieldAccessorTable\n" |
| " .ensureFieldAccessorsInitialized(\n" |
| " $classname$.class, $classname$.Builder.class);\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), |
| "identifier", UniqueFileScopeIdentifier(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| } |
| |
| // =================================================================== |
| |
| void MessageBuilderGenerator:: |
| GenerateCommonBuilderMethods(io::Printer* printer) { |
| printer->Print( |
| "// Construct using $classname$.newBuilder()\n" |
| "private Builder() {\n" |
| " maybeForceBuilderInitialization();\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Print( |
| "private Builder(\n" |
| " com.google.protobuf.GeneratedMessage$ver$.BuilderParent parent) {\n" |
| " super(parent);\n" |
| " maybeForceBuilderInitialization();\n" |
| "}\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_), |
| "ver", GeneratedCodeVersionSuffix()); |
| |
| printer->Print( |
| "private void maybeForceBuilderInitialization() {\n" |
| " if (com.google.protobuf.GeneratedMessage$ver$\n" |
| " .alwaysUseFieldBuilders) {\n", |
| "ver", GeneratedCodeVersionSuffix()); |
| |
| printer->Indent(); |
| printer->Indent(); |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| if (!descriptor_->field(i)->containing_oneof()) { |
| field_generators_.get(descriptor_->field(i)) |
| .GenerateFieldBuilderInitializationCode(printer); |
| } |
| } |
| printer->Outdent(); |
| printer->Outdent(); |
| |
| printer->Print( |
| " }\n" |
| "}\n"); |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "public Builder clear() {\n" |
| " super.clear();\n"); |
| |
| printer->Indent(); |
| |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| if (!descriptor_->field(i)->containing_oneof()) { |
| field_generators_.get(descriptor_->field(i)) |
| .GenerateBuilderClearCode(printer); |
| } |
| } |
| |
| for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| printer->Print( |
| "$oneof_name$Case_ = 0;\n" |
| "$oneof_name$_ = null;\n", |
| "oneof_name", context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->name); |
| } |
| |
| printer->Outdent(); |
| |
| printer->Print( |
| " return this;\n" |
| "}\n" |
| "\n"); |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "public com.google.protobuf.Descriptors.Descriptor\n" |
| " getDescriptorForType() {\n" |
| " return $fileclass$.internal_$identifier$_descriptor;\n" |
| "}\n" |
| "\n", |
| "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), |
| "identifier", UniqueFileScopeIdentifier(descriptor_)); |
| |
| // LITE runtime implements this in GeneratedMessageLite. |
| printer->Print( |
| "@java.lang.Override\n" |
| "public $classname$ getDefaultInstanceForType() {\n" |
| " return $classname$.getDefaultInstance();\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "public $classname$ build() {\n" |
| " $classname$ result = buildPartial();\n" |
| " if (!result.isInitialized()) {\n" |
| " throw newUninitializedMessageException(result);\n" |
| " }\n" |
| " return result;\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Print( |
| "@java.lang.Override\n" |
| "public $classname$ buildPartial() {\n" |
| " $classname$ result = new $classname$(this);\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Indent(); |
| |
| int totalBuilderBits = 0; |
| int totalMessageBits = 0; |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const ImmutableFieldGenerator& field = |
| field_generators_.get(descriptor_->field(i)); |
| totalBuilderBits += field.GetNumBitsForBuilder(); |
| totalMessageBits += field.GetNumBitsForMessage(); |
| } |
| int totalBuilderInts = (totalBuilderBits + 31) / 32; |
| int totalMessageInts = (totalMessageBits + 31) / 32; |
| |
| if (GenerateHasBits(descriptor_)) { |
| // Local vars for from and to bit fields to avoid accessing the builder and |
| // message over and over for these fields. Seems to provide a slight |
| // perforamance improvement in micro benchmark and this is also what proto1 |
| // code does. |
| for (int i = 0; i < totalBuilderInts; i++) { |
| printer->Print("int from_$bit_field_name$ = $bit_field_name$;\n", |
| "bit_field_name", GetBitFieldName(i)); |
| } |
| for (int i = 0; i < totalMessageInts; i++) { |
| printer->Print("int to_$bit_field_name$ = 0;\n", |
| "bit_field_name", GetBitFieldName(i)); |
| } |
| } |
| |
| // Output generation code for each field. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| field_generators_.get(descriptor_->field(i)).GenerateBuildingCode(printer); |
| } |
| |
| if (GenerateHasBits(descriptor_)) { |
| // Copy the bit field results to the generated message |
| for (int i = 0; i < totalMessageInts; i++) { |
| printer->Print("result.$bit_field_name$ = to_$bit_field_name$;\n", |
| "bit_field_name", GetBitFieldName(i)); |
| } |
| } |
| |
| for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { |
| printer->Print("result.$oneof_name$Case_ = $oneof_name$Case_;\n", |
| "oneof_name", context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->name); |
| } |
| |
| printer->Outdent(); |
| |
| printer->Print( |
| " onBuilt();\n"); |
| |
| printer->Print( |
| " return result;\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| // Override methods declared in GeneratedMessage to return the concrete |
| // generated type so callsites won't depend on GeneratedMessage. This |
| // is needed to keep binary compatibility when we change generated code |
| // to subclass a different GeneratedMessage class (e.g., in v3.0.0 release |
| // we changed all generated code to subclass GeneratedMessageV3). |
| printer->Print( |
| "@java.lang.Override\n" |
| "public Builder clone() {\n" |
| " return (Builder) super.clone();\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public Builder setField(\n" |
| " com.google.protobuf.Descriptors.FieldDescriptor field,\n" |
| " java.lang.Object value) {\n" |
| " return (Builder) super.setField(field, value);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public Builder clearField(\n" |
| " com.google.protobuf.Descriptors.FieldDescriptor field) {\n" |
| " return (Builder) super.clearField(field);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public Builder clearOneof(\n" |
| " com.google.protobuf.Descriptors.OneofDescriptor oneof) {\n" |
| " return (Builder) super.clearOneof(oneof);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public Builder setRepeatedField(\n" |
| " com.google.protobuf.Descriptors.FieldDescriptor field,\n" |
| " int index, java.lang.Object value) {\n" |
| " return (Builder) super.setRepeatedField(field, index, value);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public Builder addRepeatedField(\n" |
| " com.google.protobuf.Descriptors.FieldDescriptor field,\n" |
| " java.lang.Object value) {\n" |
| " return (Builder) super.addRepeatedField(field, value);\n" |
| "}\n"); |
| |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "@java.lang.Override\n" |
| "public <Type> Builder setExtension(\n" |
| " com.google.protobuf.GeneratedMessage.GeneratedExtension<\n" |
| " $classname$, Type> extension,\n" |
| " Type value) {\n" |
| " return (Builder) super.setExtension(extension, value);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public <Type> Builder setExtension(\n" |
| " com.google.protobuf.GeneratedMessage.GeneratedExtension<\n" |
| " $classname$, java.util.List<Type>> extension,\n" |
| " int index, Type value) {\n" |
| " return (Builder) super.setExtension(extension, index, value);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public <Type> Builder addExtension(\n" |
| " com.google.protobuf.GeneratedMessage.GeneratedExtension<\n" |
| " $classname$, java.util.List<Type>> extension,\n" |
| " Type value) {\n" |
| " return (Builder) super.addExtension(extension, value);\n" |
| "}\n" |
| "@java.lang.Override\n" |
| "public <Type> Builder clearExtension(\n" |
| " com.google.protobuf.GeneratedMessage.GeneratedExtension<\n" |
| " $classname$, ?> extension) {\n" |
| " return (Builder) super.clearExtension(extension);\n" |
| "}\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| } |
| |
| // ----------------------------------------------------------------- |
| |
| if (context_->HasGeneratedMethods(descriptor_)) { |
| printer->Print( |
| "@java.lang.Override\n" |
| "public Builder mergeFrom(com.google.protobuf.Message other) {\n" |
| " if (other instanceof $classname$) {\n" |
| " return mergeFrom(($classname$)other);\n" |
| " } else {\n" |
| " super.mergeFrom(other);\n" |
| " return this;\n" |
| " }\n" |
| "}\n" |
| "\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| |
| printer->Print( |
| "public Builder mergeFrom($classname$ other) {\n" |
| // Optimization: If other is the default instance, we know none of its |
| // fields are set so we can skip the merge. |
| " if (other == $classname$.getDefaultInstance()) return this;\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| printer->Indent(); |
| |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| if (!descriptor_->field(i)->containing_oneof()) { |
| field_generators_.get( |
| descriptor_->field(i)).GenerateMergingCode(printer); |
| } |
| } |
| |
| // Merge oneof fields. |
| for (int i = 0; i < descriptor_->oneof_decl_count(); ++i) { |
| printer->Print( |
| "switch (other.get$oneof_capitalized_name$Case()) {\n", |
| "oneof_capitalized_name", |
| context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->capitalized_name); |
| printer->Indent(); |
| for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { |
| const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); |
| printer->Print( |
| "case $field_name$: {\n", |
| "field_name", |
| ToUpper(field->name())); |
| printer->Indent(); |
| field_generators_.get(field).GenerateMergingCode(printer); |
| printer->Print( |
| "break;\n"); |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); |
| } |
| printer->Print( |
| "case $cap_oneof_name$_NOT_SET: {\n" |
| " break;\n" |
| "}\n", |
| "cap_oneof_name", |
| ToUpper(context_->GetOneofGeneratorInfo( |
| descriptor_->oneof_decl(i))->name)); |
| printer->Outdent(); |
| printer->Print( |
| "}\n"); |
| } |
| |
| printer->Outdent(); |
| |
| // if message type has extensions |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| " this.mergeExtensionFields(other);\n"); |
| } |
| |
| printer->Print( |
| " this.mergeUnknownFields(other.unknownFields);\n"); |
| |
| printer->Print( |
| " onChanged();\n"); |
| |
| printer->Print( |
| " return this;\n" |
| "}\n" |
| "\n"); |
| } |
| } |
| |
| // =================================================================== |
| |
| void MessageBuilderGenerator:: |
| GenerateBuilderParsingMethods(io::Printer* printer) { |
| printer->Print( |
| "@java.lang.Override\n" |
| "public Builder mergeFrom(\n" |
| " com.google.protobuf.CodedInputStream input,\n" |
| " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" |
| " throws java.io.IOException {\n" |
| " $classname$ parsedMessage = null;\n" |
| " try {\n" |
| " parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);\n" |
| " } catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" |
| " parsedMessage = ($classname$) e.getUnfinishedMessage();\n" |
| " throw e.unwrapIOException();\n" |
| " } finally {\n" |
| " if (parsedMessage != null) {\n" |
| " mergeFrom(parsedMessage);\n" |
| " }\n" |
| " }\n" |
| " return this;\n" |
| "}\n", |
| "classname", name_resolver_->GetImmutableClassName(descriptor_)); |
| } |
| |
| // =================================================================== |
| |
| void MessageBuilderGenerator::GenerateIsInitialized( |
| io::Printer* printer) { |
| printer->Print( |
| "@java.lang.Override\n" |
| "public final boolean isInitialized() {\n"); |
| printer->Indent(); |
| |
| // Check that all required fields in this message are set. |
| // TODO(kenton): We can optimize this when we switch to putting all the |
| // "has" fields into a single bitfield. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| |
| if (field->is_required()) { |
| printer->Print( |
| "if (!has$name$()) {\n" |
| " return false;\n" |
| "}\n", |
| "name", info->capitalized_name); |
| } |
| } |
| |
| // Now check that all embedded messages are initialized. |
| for (int i = 0; i < descriptor_->field_count(); i++) { |
| const FieldDescriptor* field = descriptor_->field(i); |
| const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); |
| if (GetJavaType(field) == JAVATYPE_MESSAGE && |
| HasRequiredFields(field->message_type())) { |
| switch (field->label()) { |
| case FieldDescriptor::LABEL_REQUIRED: |
| printer->Print( |
| "if (!get$name$().isInitialized()) {\n" |
| " return false;\n" |
| "}\n", |
| "type", name_resolver_->GetImmutableClassName( |
| field->message_type()), |
| "name", info->capitalized_name); |
| break; |
| case FieldDescriptor::LABEL_OPTIONAL: |
| if (!SupportFieldPresence(descriptor_->file()) && |
| field->containing_oneof() != NULL) { |
| const OneofDescriptor* oneof = field->containing_oneof(); |
| const OneofGeneratorInfo* oneof_info = |
| context_->GetOneofGeneratorInfo(oneof); |
| printer->Print( |
| "if ($oneof_name$Case_ == $field_number$) {\n", |
| "oneof_name", oneof_info->name, |
| "field_number", SimpleItoa(field->number())); |
| } else { |
| printer->Print( |
| "if (has$name$()) {\n", |
| "name", info->capitalized_name); |
| } |
| printer->Print( |
| " if (!get$name$().isInitialized()) {\n" |
| " return false;\n" |
| " }\n" |
| "}\n", |
| "name", info->capitalized_name); |
| break; |
| case FieldDescriptor::LABEL_REPEATED: |
| if (IsMapEntry(field->message_type())) { |
| printer->Print( |
| "for ($type$ item : get$name$Map().values()) {\n" |
| " if (!item.isInitialized()) {\n" |
| " return false;\n" |
| " }\n" |
| "}\n", |
| "type", MapValueImmutableClassdName(field->message_type(), |
| name_resolver_), |
| "name", info->capitalized_name); |
| } else { |
| printer->Print( |
| "for (int i = 0; i < get$name$Count(); i++) {\n" |
| " if (!get$name$(i).isInitialized()) {\n" |
| " return false;\n" |
| " }\n" |
| "}\n", |
| "type", name_resolver_->GetImmutableClassName( |
| field->message_type()), |
| "name", info->capitalized_name); |
| } |
| break; |
| } |
| } |
| } |
| |
| if (descriptor_->extension_range_count() > 0) { |
| printer->Print( |
| "if (!extensionsAreInitialized()) {\n" |
| " return false;\n" |
| "}\n"); |
| } |
| |
| printer->Outdent(); |
| |
| printer->Print( |
| " return true;\n" |
| "}\n" |
| "\n"); |
| } |
| |
| // =================================================================== |
| |
| } // namespace java |
| } // namespace compiler |
| } // namespace protobuf |
| } // namespace google |
