diff options
Diffstat (limited to 'third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc')
| -rw-r--r-- | third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc | 1174 |
1 files changed, 0 insertions, 1174 deletions
diff --git a/third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc b/third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc deleted file mode 100644 index 94ed2c396a..0000000000 --- a/third_party/protobuf/src/google/protobuf/compiler/java/java_message_lite.cc +++ /dev/null @@ -1,1174 +0,0 @@ -// 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_lite.h> - -#include <algorithm> -#include <google/protobuf/stubs/hash.h> -#include <map> -#include <memory> -#ifndef _SHARED_PTR_H -#include <google/protobuf/stubs/shared_ptr.h> -#endif -#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_lite.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_message_builder.h> -#include <google/protobuf/compiler/java/java_message_builder_lite.h> -#include <google/protobuf/compiler/java/java_name_resolver.h> -#include <google/protobuf/io/coded_stream.h> -#include <google/protobuf/io/printer.h> -#include <google/protobuf/descriptor.pb.h> -#include <google/protobuf/wire_format.h> -#include <google/protobuf/stubs/strutil.h> -#include <google/protobuf/stubs/substitute.h> - -namespace google { -namespace protobuf { -namespace compiler { -namespace java { - -using internal::WireFormat; -using internal::WireFormatLite; - -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 - -// =================================================================== -ImmutableMessageLiteGenerator::ImmutableMessageLiteGenerator( - const Descriptor* descriptor, Context* context) - : MessageGenerator(descriptor), context_(context), - name_resolver_(context->GetNameResolver()), - field_generators_(descriptor, context_) { - GOOGLE_CHECK_EQ( - FileOptions::LITE_RUNTIME, descriptor->file()->options().optimize_for()); -} - -ImmutableMessageLiteGenerator::~ImmutableMessageLiteGenerator() {} - -void ImmutableMessageLiteGenerator::GenerateStaticVariables( - io::Printer* printer) { - // Generate static members for all nested types. - for (int i = 0; i < descriptor_->nested_type_count(); i++) { - // TODO(kenton): Reuse MessageGenerator objects? - ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_) - .GenerateStaticVariables(printer); - } -} - -int ImmutableMessageLiteGenerator::GenerateStaticVariableInitializers( - io::Printer* printer) { - int bytecode_estimate = 0; - // Generate static member initializers for all nested types. - for (int i = 0; i < descriptor_->nested_type_count(); i++) { - // TODO(kenton): Reuse MessageGenerator objects? - bytecode_estimate += - ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_) - .GenerateStaticVariableInitializers(printer); - } - return bytecode_estimate; -} - -// =================================================================== - -void ImmutableMessageLiteGenerator::GenerateInterface(io::Printer* printer) { - if (descriptor_->extension_range_count() > 0) { - printer->Print( - "public interface $classname$OrBuilder extends \n" - " $extra_interfaces$\n" - " com.google.protobuf.GeneratedMessageLite.\n" - " ExtendableMessageOrBuilder<\n" - " $classname$, $classname$.Builder> {\n", - "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), - "classname", descriptor_->name()); - } else { - printer->Print( - "public interface $classname$OrBuilder extends\n" - " $extra_interfaces$\n" - " com.google.protobuf.MessageLiteOrBuilder {\n", - "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), - "classname", descriptor_->name()); - } - - printer->Indent(); - for (int i = 0; i < descriptor_->field_count(); i++) { - printer->Print("\n"); - field_generators_.get(descriptor_->field(i)) - .GenerateInterfaceMembers(printer); - } - for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { - printer->Print( - "\n" - "public $classname$.$oneof_capitalized_name$Case " - "get$oneof_capitalized_name$Case();\n", - "oneof_capitalized_name", - context_->GetOneofGeneratorInfo( - descriptor_->oneof_decl(i))->capitalized_name, - "classname", - context_->GetNameResolver()->GetImmutableClassName(descriptor_)); - } - printer->Outdent(); - - printer->Print("}\n"); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator::Generate(io::Printer* printer) { - bool is_own_file = - descriptor_->containing_type() == NULL && - MultipleJavaFiles(descriptor_->file(), /* immutable = */ true); - - map<string, string> variables; - variables["static"] = is_own_file ? " " : " static "; - variables["classname"] = descriptor_->name(); - variables["extra_interfaces"] = ExtraMessageInterfaces(descriptor_); - - WriteMessageDocComment(printer, descriptor_); - - // The builder_type stores the super type name of the nested Builder class. - string builder_type; - if (descriptor_->extension_range_count() > 0) { - printer->Print(variables, - "public $static$final class $classname$ extends\n" - " com.google.protobuf.GeneratedMessageLite.ExtendableMessage<\n" - " $classname$, $classname$.Builder> implements\n" - " $extra_interfaces$\n" - " $classname$OrBuilder {\n"); - builder_type = strings::Substitute( - "com.google.protobuf.GeneratedMessageLite.ExtendableBuilder<$0, ?>", - name_resolver_->GetImmutableClassName(descriptor_)); - } else { - printer->Print(variables, - "public $static$final class $classname$ extends\n" - " com.google.protobuf.GeneratedMessageLite<\n" - " $classname$, $classname$.Builder> implements\n" - " $extra_interfaces$\n" - " $classname$OrBuilder {\n"); - - builder_type = "com.google.protobuf.GeneratedMessageLite.Builder"; - } - printer->Indent(); - - GenerateParsingConstructor(printer); - - // Nested types - for (int i = 0; i < descriptor_->enum_type_count(); i++) { - EnumLiteGenerator(descriptor_->enum_type(i), true, context_) - .Generate(printer); - } - - for (int i = 0; i < descriptor_->nested_type_count(); i++) { - // Don't generate Java classes for map entry messages. - if (IsMapEntry(descriptor_->nested_type(i))) continue; - ImmutableMessageLiteGenerator messageGenerator( - descriptor_->nested_type(i), context_); - messageGenerator.GenerateInterface(printer); - messageGenerator.Generate(printer); - } - - 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)) - .GetNumBitsForMessage(); - } - 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)); - } - } - - // oneof - 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 enum - printer->Print(vars, - "public enum $oneof_capitalized_name$Case\n" - " implements com.google.protobuf.Internal.EnumLite {\n"); - 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( - "$field_name$($field_number$),\n", - "field_name", - ToUpper(field->name()), - "field_number", - SimpleItoa(field->number())); - } - printer->Print( - "$cap_oneof_name$_NOT_SET(0);\n", - "cap_oneof_name", - ToUpper(vars["oneof_name"])); - printer->Print(vars, - "private int value = 0;\n" - "private $oneof_capitalized_name$Case(int value) {\n" - " this.value = value;\n" - "}\n"); - printer->Print(vars, - "public static $oneof_capitalized_name$Case valueOf(int value) {\n" - " switch (value) {\n"); - for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { - const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); - printer->Print( - " case $field_number$: return $field_name$;\n", - "field_number", - SimpleItoa(field->number()), - "field_name", - ToUpper(field->name())); - } - printer->Print( - " case 0: return $cap_oneof_name$_NOT_SET;\n" - " default: throw new java.lang.IllegalArgumentException(\n" - " \"Value is undefined for this oneof enum.\");\n" - " }\n" - "}\n" - "public int getNumber() {\n" - " return this.value;\n" - "}\n", - "cap_oneof_name", ToUpper(vars["oneof_name"])); - printer->Outdent(); - printer->Print("};\n\n"); - // oneofCase() - printer->Print(vars, - "public $oneof_capitalized_name$Case\n" - "get$oneof_capitalized_name$Case() {\n" - " return $oneof_capitalized_name$Case.valueOf(\n" - " $oneof_name$Case_);\n" - "}\n" - "\n" - "private void clear$oneof_capitalized_name$() {\n" - " $oneof_name$Case_ = 0;\n" - " $oneof_name$_ = null;\n" - "}\n" - "\n"); - } - - // Fields - for (int i = 0; i < descriptor_->field_count(); i++) { - printer->Print("public static final int $constant_name$ = $number$;\n", - "constant_name", FieldConstantName(descriptor_->field(i)), - "number", SimpleItoa(descriptor_->field(i)->number())); - field_generators_.get(descriptor_->field(i)).GenerateMembers(printer); - printer->Print("\n"); - } - - GenerateMessageSerializationMethods(printer); - - if (HasEqualsAndHashCode(descriptor_)) { - GenerateEqualsAndHashCode(printer); - } - - - GenerateParseFromMethods(printer); - GenerateBuilder(printer); - - if (HasRequiredFields(descriptor_)) { - // Memoizes whether the protocol buffer is fully initialized (has all - // required fields). -1 means not yet computed. 0 means false and 1 means - // true. - printer->Print( - "private byte memoizedIsInitialized = -1;\n"); - } - - printer->Print( - "protected final Object dynamicMethod(\n" - " com.google.protobuf.GeneratedMessageLite.MethodToInvoke method,\n" - " Object arg0, Object arg1) {\n" - " switch (method) {\n" - " case PARSE_PARTIAL_FROM: {\n" - " return new $classname$(" - " (com.google.protobuf.CodedInputStream) arg0,\n" - " (com.google.protobuf.ExtensionRegistryLite) arg1);\n" - " }\n" - " case NEW_INSTANCE: {\n" - " return new $classname$(\n" - " com.google.protobuf.Internal.EMPTY_CODED_INPUT_STREAM,\n" - " com.google.protobuf.ExtensionRegistryLite\n" - " .getEmptyRegistry());\n" - " }\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - printer->Indent(); - printer->Indent(); - - printer->Print( - "case IS_INITIALIZED: {\n"); - printer->Indent(); - GenerateDynamicMethodIsInitialized(printer); - printer->Outdent(); - - printer->Print( - "}\n" - "case MAKE_IMMUTABLE: {\n"); - - printer->Indent(); - GenerateDynamicMethodMakeImmutable(printer); - printer->Outdent(); - - printer->Print( - "}\n" - "case NEW_BUILDER: {\n"); - - printer->Indent(); - GenerateDynamicMethodNewBuilder(printer); - printer->Outdent(); - - printer->Print( - "}\n" - "case MERGE_FROM: {\n"); - - printer->Indent(); - GenerateDynamicMethodMergeFrom(printer); - printer->Outdent(); - - printer->Print( - "}\n" - "case GET_DEFAULT_INSTANCE: {\n" - " return DEFAULT_INSTANCE;\n" - "}\n" - "case GET_PARSER: {\n" - // Generally one would use the lazy initialization holder pattern for - // manipulating static fields but that has exceptional cost on Android as - // it will generate an extra class for every message. Instead, use the - // double-check locking pattern which works just as well. - " if (PARSER == null) {" - " synchronized ($classname$.class) {\n" - " if (PARSER == null) {\n" - " PARSER = new DefaultInstanceBasedParser(DEFAULT_INSTANCE);\n" - " }\n" - " }\n" - " }\n" - " return PARSER;\n" - "}\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - printer->Outdent(); - printer->Outdent(); - - printer->Print( - " }\n" - " throw new UnsupportedOperationException();\n" - "}\n" - "\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - printer->Print( - "\n" - "// @@protoc_insertion_point(class_scope:$full_name$)\n", - "full_name", descriptor_->full_name()); - - - // Carefully initialize the default instance in such a way that it doesn't - // conflict with other initialization. - printer->Print( - "private static final $classname$ DEFAULT_INSTANCE;\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - printer->Print( - "static {\n" - " DEFAULT_INSTANCE = new $classname$(\n" - " com.google.protobuf.Internal\n" - " .EMPTY_CODED_INPUT_STREAM,\n" - " com.google.protobuf.ExtensionRegistryLite\n" - " .getEmptyRegistry());\n" - "}\n" - "\n", - "classname", descriptor_->name()); - printer->Print( - "public static $classname$ getDefaultInstance() {\n" - " return DEFAULT_INSTANCE;\n" - "}\n" - "\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - GenerateParser(printer); - - // Extensions must be declared after the DEFAULT_INSTANCE is initialized - // because the DEFAULT_INSTANCE is used by the extension to lazily retrieve - // the outer class's FileDescriptor. - for (int i = 0; i < descriptor_->extension_count(); i++) { - ImmutableExtensionGenerator(descriptor_->extension(i), context_) - .Generate(printer); - } - - printer->Outdent(); - printer->Print("}\n\n"); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator:: -GenerateMessageSerializationMethods(io::Printer* printer) { - google::protobuf::scoped_array<const FieldDescriptor * > sorted_fields( - SortFieldsByNumber(descriptor_)); - - vector<const Descriptor::ExtensionRange*> sorted_extensions; - for (int i = 0; i < descriptor_->extension_range_count(); ++i) { - sorted_extensions.push_back(descriptor_->extension_range(i)); - } - std::sort(sorted_extensions.begin(), sorted_extensions.end(), - ExtensionRangeOrdering()); - - printer->Print( - "public void writeTo(com.google.protobuf.CodedOutputStream output)\n" - " throws java.io.IOException {\n"); - printer->Indent(); - if (HasPackedFields(descriptor_)) { - // writeTo(CodedOutputStream output) might be invoked without - // getSerializedSize() ever being called, but we need the memoized - // sizes in case this message has packed fields. Rather than emit checks for - // each packed field, just call getSerializedSize() up front. - // In most cases, getSerializedSize() will have already been called anyway - // by one of the wrapper writeTo() methods, making this call cheap. - printer->Print( - "getSerializedSize();\n"); - } - - if (descriptor_->extension_range_count() > 0) { - if (descriptor_->options().message_set_wire_format()) { - printer->Print( - "com.google.protobuf.GeneratedMessageLite\n" - " .ExtendableMessage<$classname$, $classname$.Builder>\n" - " .ExtensionWriter extensionWriter =\n" - " newMessageSetExtensionWriter();\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - } else { - printer->Print( - "com.google.protobuf.GeneratedMessageLite\n" - " .ExtendableMessage<$classname$, $classname$.Builder>\n" - " .ExtensionWriter extensionWriter =\n" - " newExtensionWriter();\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - } - } - - // Merge the fields and the extension ranges, both sorted by field number. - for (int i = 0, j = 0; - i < descriptor_->field_count() || j < sorted_extensions.size(); - ) { - if (i == descriptor_->field_count()) { - GenerateSerializeOneExtensionRange(printer, sorted_extensions[j++]); - } else if (j == sorted_extensions.size()) { - GenerateSerializeOneField(printer, sorted_fields[i++]); - } else if (sorted_fields[i]->number() < sorted_extensions[j]->start) { - GenerateSerializeOneField(printer, sorted_fields[i++]); - } else { - GenerateSerializeOneExtensionRange(printer, sorted_extensions[j++]); - } - } - - if (PreserveUnknownFields(descriptor_)) { - printer->Print( - "unknownFields.writeTo(output);\n"); - } - - printer->Outdent(); - printer->Print( - "}\n" - "\n" - "public int getSerializedSize() {\n" - " int size = memoizedSerializedSize;\n" - " if (size != -1) return size;\n" - "\n" - " size = 0;\n"); - printer->Indent(); - - for (int i = 0; i < descriptor_->field_count(); i++) { - field_generators_.get(sorted_fields[i]).GenerateSerializedSizeCode(printer); - } - - if (descriptor_->extension_range_count() > 0) { - if (descriptor_->options().message_set_wire_format()) { - printer->Print( - "size += extensionsSerializedSizeAsMessageSet();\n"); - } else { - printer->Print( - "size += extensionsSerializedSize();\n"); - } - } - - if (PreserveUnknownFields(descriptor_)) { - printer->Print( - "size += unknownFields.getSerializedSize();\n"); - } - - printer->Outdent(); - printer->Print( - " memoizedSerializedSize = size;\n" - " return size;\n" - "}\n" - "\n"); - - printer->Print( - "private static final long serialVersionUID = 0L;\n"); -} - -void ImmutableMessageLiteGenerator:: -GenerateParseFromMethods(io::Printer* printer) { - // Note: These are separate from GenerateMessageSerializationMethods() - // because they need to be generated even for messages that are optimized - // for code size. - printer->Print( - "public static $classname$ parseFrom(\n" - " com.google.protobuf.ByteString data)\n" - " throws com.google.protobuf.InvalidProtocolBufferException {\n" - " return parser().parseFrom(data);\n" - "}\n" - "public static $classname$ parseFrom(\n" - " com.google.protobuf.ByteString data,\n" - " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" - " throws com.google.protobuf.InvalidProtocolBufferException {\n" - " return parser().parseFrom(data, extensionRegistry);\n" - "}\n" - "public static $classname$ parseFrom(byte[] data)\n" - " throws com.google.protobuf.InvalidProtocolBufferException {\n" - " return parser().parseFrom(data);\n" - "}\n" - "public static $classname$ parseFrom(\n" - " byte[] data,\n" - " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" - " throws com.google.protobuf.InvalidProtocolBufferException {\n" - " return parser().parseFrom(data, extensionRegistry);\n" - "}\n" - "public static $classname$ parseFrom(java.io.InputStream input)\n" - " throws java.io.IOException {\n" - " return parser().parseFrom(input);\n" - "}\n" - "public static $classname$ parseFrom(\n" - " java.io.InputStream input,\n" - " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" - " throws java.io.IOException {\n" - " return parser().parseFrom(input, extensionRegistry);\n" - "}\n" - "public static $classname$ parseDelimitedFrom(java.io.InputStream input)\n" - " throws java.io.IOException {\n" - " return parser().parseDelimitedFrom(input);\n" - "}\n" - "public static $classname$ parseDelimitedFrom(\n" - " java.io.InputStream input,\n" - " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" - " throws java.io.IOException {\n" - " return parser().parseDelimitedFrom(input, extensionRegistry);\n" - "}\n" - "public static $classname$ parseFrom(\n" - " com.google.protobuf.CodedInputStream input)\n" - " throws java.io.IOException {\n" - " return parser().parseFrom(input);\n" - "}\n" - "public static $classname$ parseFrom(\n" - " com.google.protobuf.CodedInputStream input,\n" - " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" - " throws java.io.IOException {\n" - " return parser().parseFrom(input, extensionRegistry);\n" - "}\n" - "\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); -} - -void ImmutableMessageLiteGenerator::GenerateSerializeOneField( - io::Printer* printer, const FieldDescriptor* field) { - field_generators_.get(field).GenerateSerializationCode(printer); -} - -void ImmutableMessageLiteGenerator::GenerateSerializeOneExtensionRange( - io::Printer* printer, const Descriptor::ExtensionRange* range) { - printer->Print( - "extensionWriter.writeUntil($end$, output);\n", - "end", SimpleItoa(range->end)); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator::GenerateBuilder(io::Printer* printer) { - printer->Print( - "public static Builder newBuilder() {\n" - " return DEFAULT_INSTANCE.toBuilder();\n" - "}\n" - "public static Builder newBuilder($classname$ prototype) {\n" - " return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);\n" - "}\n" - "\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - MessageBuilderLiteGenerator builderGenerator(descriptor_, context_); - builderGenerator.Generate(printer); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator::GenerateDynamicMethodIsInitialized( - io::Printer* printer) { - // Returns null for false, DEFAULT_INSTANCE for true. - if (!HasRequiredFields(descriptor_)) { - printer->Print("return DEFAULT_INSTANCE;\n"); - return; - } - - // Don't directly compare to -1 to avoid an Android x86 JIT bug. - printer->Print( - "byte isInitialized = memoizedIsInitialized;\n" - "if (isInitialized == 1) return DEFAULT_INSTANCE;\n" - "if (isInitialized == 0) return null;\n" - "\n" - "boolean shouldMemoize = ((Boolean) arg0).booleanValue();\n"); - - // 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" - " if (shouldMemoize) {\n" - " memoizedIsInitialized = 0;\n" - " }\n" - " return null;\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" - " if (shouldMemoize) {\n" - " memoizedIsInitialized = 0;\n" - " }\n" - " return null;\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" - " if (shouldMemoize) {\n" - " memoizedIsInitialized = 0;\n" - " }\n" - " return null;\n" - " }\n" - "}\n", - "name", info->capitalized_name); - break; - case FieldDescriptor::LABEL_REPEATED: - if (IsMapEntry(field->message_type())) { - printer->Print( - "for ($type$ item : get$name$().values()) {\n" - " if (!item.isInitialized()) {\n" - " if (shouldMemoize) {\n" - " memoizedIsInitialized = 0;\n" - " }\n" - " return null;\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" - " if (shouldMemoize) {\n" - " memoizedIsInitialized = 0;\n" - " }\n" - " return null;\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" - " if (shouldMemoize) {\n" - " memoizedIsInitialized = 0;\n" - " }\n" - " return null;\n" - "}\n"); - } - - printer->Print( - "if (shouldMemoize) memoizedIsInitialized = 1;\n"); - - printer->Print( - "return DEFAULT_INSTANCE;\n" - "\n"); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator::GenerateDynamicMethodMakeImmutable( - io::Printer* printer) { - // Output generation code for each field. - for (int i = 0; i < descriptor_->field_count(); i++) { - field_generators_.get(descriptor_->field(i)) - .GenerateDynamicMethodMakeImmutableCode(printer); - } - printer->Print( - "return null;\n"); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator::GenerateDynamicMethodNewBuilder( - io::Printer* printer) { - printer->Print( - "return new Builder();\n"); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator::GenerateDynamicMethodMergeFrom( - io::Printer* printer) { - printer->Print( - // Optimization: If other is the default instance, we know none of its - // fields are set so we can skip the merge. - "if (arg0 == $classname$.getDefaultInstance()) return this;\n" - "$classname$ other = ($classname$) arg0;\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - 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"); - } - - // if message type has extensions - if (descriptor_->extension_range_count() > 0) { - printer->Print( - "this.mergeExtensionFields(other);\n"); - } - - if (PreserveUnknownFields(descriptor_)) { - printer->Print( - "this.mergeUnknownFields(other.unknownFields);\n"); - } - - printer->Print( - "return this;\n"); -} - -// =================================================================== - -namespace { -bool CheckHasBitsForEqualsAndHashCode(const FieldDescriptor* field) { - if (field->is_repeated()) { - return false; - } - if (SupportFieldPresence(field->file())) { - return true; - } - return GetJavaType(field) == JAVATYPE_MESSAGE && - field->containing_oneof() == NULL; -} -} // namespace - -void ImmutableMessageLiteGenerator:: -GenerateEqualsAndHashCode(io::Printer* printer) { - printer->Print( - "@java.lang.Override\n" - "public boolean equals(final java.lang.Object obj) {\n"); - printer->Indent(); - printer->Print( - "if (obj == this) {\n" - " return true;\n" - "}\n" - "if (!(obj instanceof $classname$)) {\n" - " return super.equals(obj);\n" - "}\n" - "$classname$ other = ($classname$) obj;\n" - "\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - printer->Print("boolean result = true;\n"); - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = descriptor_->field(i); - const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); - bool check_has_bits = CheckHasBitsForEqualsAndHashCode(field); - if (check_has_bits) { - printer->Print( - "result = result && (has$name$() == other.has$name$());\n" - "if (has$name$()) {\n", - "name", info->capitalized_name); - printer->Indent(); - } - field_generators_.get(field).GenerateEqualsCode(printer); - if (check_has_bits) { - printer->Outdent(); - printer->Print( - "}\n"); - } - } - if (PreserveUnknownFields(descriptor_)) { - // Always consider unknown fields for equality. This will sometimes return - // false for non-canonical ordering when running in LITE_RUNTIME but it's - // the best we can do. - printer->Print( - "result = result && unknownFields.equals(other.unknownFields);\n"); - } - printer->Print( - "return result;\n"); - printer->Outdent(); - printer->Print( - "}\n" - "\n"); - - printer->Print( - "@java.lang.Override\n" - "public int hashCode() {\n"); - printer->Indent(); - printer->Print( - "if (memoizedHashCode != 0) {\n"); - printer->Indent(); - printer->Print( - "return memoizedHashCode;\n"); - printer->Outdent(); - printer->Print( - "}\n" - "int hash = 41;\n"); - - // Include the hash of the class so that two objects with different types - // but the same field values will probably have different hashes. - printer->Print("hash = (19 * hash) + $classname$.class.hashCode();\n", - "classname", name_resolver_->GetImmutableClassName(descriptor_)); - - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = descriptor_->field(i); - const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); - bool check_has_bits = CheckHasBitsForEqualsAndHashCode(field); - if (check_has_bits) { - printer->Print( - "if (has$name$()) {\n", - "name", info->capitalized_name); - printer->Indent(); - } - field_generators_.get(field).GenerateHashCode(printer); - if (check_has_bits) { - printer->Outdent(); - printer->Print("}\n"); - } - } - - printer->Print( - "hash = (29 * hash) + unknownFields.hashCode();\n"); - printer->Print( - "memoizedHashCode = hash;\n" - "return hash;\n"); - printer->Outdent(); - printer->Print( - "}\n" - "\n"); -} - -// =================================================================== - -void ImmutableMessageLiteGenerator:: -GenerateExtensionRegistrationCode(io::Printer* printer) { - for (int i = 0; i < descriptor_->extension_count(); i++) { - ImmutableExtensionGenerator(descriptor_->extension(i), context_) - .GenerateRegistrationCode(printer); - } - - for (int i = 0; i < descriptor_->nested_type_count(); i++) { - ImmutableMessageLiteGenerator(descriptor_->nested_type(i), context_) - .GenerateExtensionRegistrationCode(printer); - } -} - -// =================================================================== -void ImmutableMessageLiteGenerator:: -GenerateParsingConstructor(io::Printer* printer) { - google::protobuf::scoped_array<const FieldDescriptor * > sorted_fields( - SortFieldsByNumber(descriptor_)); - - printer->Print( - "private $classname$(\n" - " com.google.protobuf.CodedInputStream input,\n" - " com.google.protobuf.ExtensionRegistryLite extensionRegistry) {\n", - "classname", descriptor_->name()); - printer->Indent(); - - // Initialize all fields to default. - GenerateInitializers(printer); - - // Use builder bits to track mutable repeated fields. - int totalBuilderBits = 0; - for (int i = 0; i < descriptor_->field_count(); i++) { - const ImmutableFieldLiteGenerator& field = - field_generators_.get(descriptor_->field(i)); - totalBuilderBits += field.GetNumBitsForBuilder(); - } - int totalBuilderInts = (totalBuilderBits + 31) / 32; - for (int i = 0; i < totalBuilderInts; i++) { - printer->Print("int mutable_$bit_field_name$ = 0;\n", - "bit_field_name", GetBitFieldName(i)); - } - - printer->Print( - "try {\n"); - printer->Indent(); - - printer->Print( - "boolean done = false;\n" - "while (!done) {\n"); - printer->Indent(); - - printer->Print( - "int tag = input.readTag();\n" - "switch (tag) {\n"); - printer->Indent(); - - printer->Print( - "case 0:\n" // zero signals EOF / limit reached - " done = true;\n" - " break;\n"); - - if (PreserveUnknownFields(descriptor_)) { - if (descriptor_->extension_range_count() > 0) { - printer->Print( - "default: {\n" - " if (!parseUnknownField(getDefaultInstanceForType(),\n" - " input, extensionRegistry, tag)) {\n" - " done = true;\n" // it's an endgroup tag - " }\n" - " break;\n" - "}\n"); - } else { - printer->Print( - "default: {\n" - " if (!parseUnknownField(tag, input)) {\n" - " done = true;\n" // it's an endgroup tag - " }\n" - " break;\n" - "}\n"); - } - } else { - printer->Print( - "default: {\n" - " if (!input.skipField(tag)) {\n" - " done = true;\n" // it's an endgroup tag - " }\n" - " break;\n" - "}\n"); - } - - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = sorted_fields[i]; - uint32 tag = WireFormatLite::MakeTag(field->number(), - WireFormat::WireTypeForFieldType(field->type())); - - printer->Print( - "case $tag$: {\n", - "tag", SimpleItoa(tag)); - printer->Indent(); - - field_generators_.get(field).GenerateParsingCode(printer); - - printer->Outdent(); - printer->Print( - " break;\n" - "}\n"); - - if (field->is_packable()) { - // To make packed = true wire compatible, we generate parsing code from a - // packed version of this field regardless of field->options().packed(). - uint32 packed_tag = WireFormatLite::MakeTag(field->number(), - WireFormatLite::WIRETYPE_LENGTH_DELIMITED); - printer->Print( - "case $tag$: {\n", - "tag", SimpleItoa(packed_tag)); - printer->Indent(); - - field_generators_.get(field).GenerateParsingCodeFromPacked(printer); - - printer->Outdent(); - printer->Print( - " break;\n" - "}\n"); - } - } - - printer->Outdent(); - printer->Outdent(); - printer->Print( - " }\n" // switch (tag) - "}\n"); // while (!done) - - printer->Outdent(); - printer->Print( - "} catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" - " throw new RuntimeException(e.setUnfinishedMessage(this));\n" - "} catch (java.io.IOException e) {\n" - " throw new RuntimeException(\n" - " new com.google.protobuf.InvalidProtocolBufferException(\n" - " e.getMessage()).setUnfinishedMessage(this));\n" - "} finally {\n"); - printer->Indent(); - - // Make repeated field list immutable. - for (int i = 0; i < descriptor_->field_count(); i++) { - const FieldDescriptor* field = sorted_fields[i]; - field_generators_.get(field).GenerateParsingDoneCode(printer); - } - - printer->Print( - "doneParsing();\n"); - - printer->Outdent(); - printer->Outdent(); - printer->Print( - " }\n" // finally - "}\n"); -} - -// =================================================================== -void ImmutableMessageLiteGenerator::GenerateParser(io::Printer* printer) { - printer->Print( - "private static volatile com.google.protobuf.Parser<$classname$> PARSER;\n" - "\n" - "public static com.google.protobuf.Parser<$classname$> parser() {\n" - " return DEFAULT_INSTANCE.getParserForType();\n" - "}\n", - "classname", descriptor_->name()); -} - -// =================================================================== -void ImmutableMessageLiteGenerator::GenerateInitializers(io::Printer* printer) { - for (int i = 0; i < descriptor_->field_count(); i++) { - if (!descriptor_->field(i)->containing_oneof()) { - field_generators_.get(descriptor_->field(i)) - .GenerateInitializationCode(printer); - } - } -} - - -} // namespace java -} // namespace compiler -} // namespace protobuf -} // namespace google |