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+// 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: kenton@google.com (Kenton Varda)
+// Based on original Protocol Buffers design by
+// Sanjay Ghemawat, Jeff Dean, and others.
+
+#include <map>
+#include <string>
+
+#include <google/protobuf/stubs/logging.h>
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/compiler/java/java_context.h>
+#include <google/protobuf/compiler/java/java_doc_comment.h>
+#include <google/protobuf/compiler/java/java_enum_field.h>
+#include <google/protobuf/compiler/java/java_helpers.h>
+#include <google/protobuf/compiler/java/java_name_resolver.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/wire_format.h>
+#include <google/protobuf/stubs/strutil.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace java {
+
+namespace {
+
+void SetEnumVariables(const FieldDescriptor* descriptor,
+ int messageBitIndex,
+ int builderBitIndex,
+ const FieldGeneratorInfo* info,
+ ClassNameResolver* name_resolver,
+ std::map<string, string>* variables) {
+ SetCommonFieldVariables(descriptor, info, variables);
+
+ (*variables)["type"] =
+ name_resolver->GetImmutableClassName(descriptor->enum_type());
+ (*variables)["mutable_type"] =
+ name_resolver->GetMutableClassName(descriptor->enum_type());
+ (*variables)["default"] = ImmutableDefaultValue(descriptor, name_resolver);
+ (*variables)["default_number"] = SimpleItoa(
+ descriptor->default_value_enum()->number());
+ (*variables)["tag"] =
+ SimpleItoa(static_cast<int32>(internal::WireFormat::MakeTag(descriptor)));
+ (*variables)["tag_size"] = SimpleItoa(
+ internal::WireFormat::TagSize(descriptor->number(), GetType(descriptor)));
+ // TODO(birdo): Add @deprecated javadoc when generating javadoc is supported
+ // by the proto compiler
+ (*variables)["deprecation"] = descriptor->options().deprecated()
+ ? "@java.lang.Deprecated " : "";
+ (*variables)["on_changed"] = "onChanged();";
+ // Use deprecated valueOf() method to be compatible with old generated code
+ // for v2.5.0/v2.6.1.
+ // TODO(xiaofeng): Use "forNumber" when we no longer support compatibility
+ // with v2.5.0/v2.6.1.
+ (*variables)["for_number"] = "valueOf";
+
+ if (SupportFieldPresence(descriptor->file())) {
+ // For singular messages and builders, one bit is used for the hasField bit.
+ (*variables)["get_has_field_bit_message"] = GenerateGetBit(messageBitIndex);
+ (*variables)["get_has_field_bit_builder"] = GenerateGetBit(builderBitIndex);
+
+ // Note that these have a trailing ";".
+ (*variables)["set_has_field_bit_message"] =
+ GenerateSetBit(messageBitIndex) + ";";
+ (*variables)["set_has_field_bit_builder"] =
+ GenerateSetBit(builderBitIndex) + ";";
+ (*variables)["clear_has_field_bit_builder"] =
+ GenerateClearBit(builderBitIndex) + ";";
+
+ (*variables)["is_field_present_message"] = GenerateGetBit(messageBitIndex);
+ } else {
+ (*variables)["set_has_field_bit_message"] = "";
+ (*variables)["set_has_field_bit_builder"] = "";
+ (*variables)["clear_has_field_bit_builder"] = "";
+
+ (*variables)["is_field_present_message"] =
+ (*variables)["name"] + "_ != " +
+ (*variables)["default"] + ".getNumber()";
+ }
+
+ // For repated builders, one bit is used for whether the array is immutable.
+ (*variables)["get_mutable_bit_builder"] = GenerateGetBit(builderBitIndex);
+ (*variables)["set_mutable_bit_builder"] = GenerateSetBit(builderBitIndex);
+ (*variables)["clear_mutable_bit_builder"] = GenerateClearBit(builderBitIndex);
+
+ // For repeated fields, one bit is used for whether the array is immutable
+ // in the parsing constructor.
+ (*variables)["get_mutable_bit_parser"] =
+ GenerateGetBitMutableLocal(builderBitIndex);
+ (*variables)["set_mutable_bit_parser"] =
+ GenerateSetBitMutableLocal(builderBitIndex);
+
+ (*variables)["get_has_field_bit_from_local"] =
+ GenerateGetBitFromLocal(builderBitIndex);
+ (*variables)["set_has_field_bit_to_local"] =
+ GenerateSetBitToLocal(messageBitIndex);
+
+ if (SupportUnknownEnumValue(descriptor->file())) {
+ (*variables)["unknown"] = (*variables)["type"] + ".UNRECOGNIZED";
+ } else {
+ (*variables)["unknown"] = (*variables)["default"];
+ }
+}
+
+} // namespace
+
+// ===================================================================
+
+ImmutableEnumFieldGenerator::
+ImmutableEnumFieldGenerator(const FieldDescriptor* descriptor,
+ int messageBitIndex,
+ int builderBitIndex,
+ Context* context)
+ : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
+ builderBitIndex_(builderBitIndex),
+ name_resolver_(context->GetNameResolver()) {
+ SetEnumVariables(descriptor, messageBitIndex, builderBitIndex,
+ context->GetFieldGeneratorInfo(descriptor),
+ name_resolver_, &variables_);
+}
+
+ImmutableEnumFieldGenerator::~ImmutableEnumFieldGenerator() {}
+
+int ImmutableEnumFieldGenerator::GetNumBitsForMessage() const {
+ return 1;
+}
+
+int ImmutableEnumFieldGenerator::GetNumBitsForBuilder() const {
+ return 1;
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateInterfaceMembers(io::Printer* printer) const {
+ if (SupportFieldPresence(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$boolean has$capitalized_name$();\n");
+ }
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$int get$capitalized_name$Value();\n");
+ }
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$$type$ get$capitalized_name$();\n");
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateMembers(io::Printer* printer) const {
+ printer->Print(variables_,
+ "private int $name$_;\n");
+ PrintExtraFieldInfo(variables_, printer);
+ if (SupportFieldPresence(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
+ " return $get_has_field_bit_message$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Value$}$() {\n"
+ " return $name$_;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public $type$ ${$get$capitalized_name$$}$() {\n"
+ " $type$ result = $type$.$for_number$($name$_);\n"
+ " return result == null ? $unknown$ : result;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateBuilderMembers(io::Printer* printer) const {
+ printer->Print(variables_,
+ "private int $name$_ = $default_number$;\n");
+ if (SupportFieldPresence(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
+ " return $get_has_field_bit_builder$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Value$}$() {\n"
+ " return $name$_;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder "
+ "${$set$capitalized_name$Value$}$(int value) {\n"
+ " $name$_ = value;\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public $type$ ${$get$capitalized_name$$}$() {\n"
+ " $type$ result = $type$.$for_number$($name$_);\n"
+ " return result == null ? $unknown$ : result;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$set$capitalized_name$$}$($type$ value) {\n"
+ " if (value == null) {\n"
+ " throw new NullPointerException();\n"
+ " }\n"
+ " $set_has_field_bit_builder$\n"
+ " $name$_ = value.getNumber();\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$clear$capitalized_name$$}$() {\n"
+ " $clear_has_field_bit_builder$\n"
+ " $name$_ = $default_number$;\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
+ // noop for enums
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateInitializationCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$_ = $default_number$;\n");
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateBuilderClearCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "$name$_ = $default_number$;\n"
+ "$clear_has_field_bit_builder$\n");
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateMergingCode(io::Printer* printer) const {
+ if (SupportFieldPresence(descriptor_->file())) {
+ printer->Print(variables_,
+ "if (other.has$capitalized_name$()) {\n"
+ " set$capitalized_name$(other.get$capitalized_name$());\n"
+ "}\n");
+ } else if (SupportUnknownEnumValue(descriptor_->file())) {
+ printer->Print(variables_,
+ "if (other.$name$_ != $default_number$) {\n"
+ " set$capitalized_name$Value(other.get$capitalized_name$Value());\n"
+ "}\n");
+ } else {
+ GOOGLE_LOG(FATAL) << "Can't reach here.";
+ }
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateBuildingCode(io::Printer* printer) const {
+ if (SupportFieldPresence(descriptor_->file())) {
+ printer->Print(variables_,
+ "if ($get_has_field_bit_from_local$) {\n"
+ " $set_has_field_bit_to_local$;\n"
+ "}\n");
+ }
+ printer->Print(variables_,
+ "result.$name$_ = $name$_;\n");
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateParsingCode(io::Printer* printer) const {
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ printer->Print(variables_,
+ "int rawValue = input.readEnum();\n"
+ "$set_has_field_bit_message$\n"
+ "$name$_ = rawValue;\n");
+ } else {
+ printer->Print(variables_,
+ "int rawValue = input.readEnum();\n"
+ "$type$ value = $type$.$for_number$(rawValue);\n"
+ "if (value == null) {\n"
+ " unknownFields.mergeVarintField($number$, rawValue);\n"
+ "} else {\n"
+ " $set_has_field_bit_message$\n"
+ " $name$_ = rawValue;\n"
+ "}\n");
+ }
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateParsingDoneCode(io::Printer* printer) const {
+ // noop for enums
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($is_field_present_message$) {\n"
+ " output.writeEnum($number$, $name$_);\n"
+ "}\n");
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($is_field_present_message$) {\n"
+ " size += com.google.protobuf.CodedOutputStream\n"
+ " .computeEnumSize($number$, $name$_);\n"
+ "}\n");
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateEqualsCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "result = result && $name$_ == other.$name$_;\n");
+}
+
+void ImmutableEnumFieldGenerator::
+GenerateHashCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "hash = (37 * hash) + $constant_name$;\n"
+ "hash = (53 * hash) + $name$_;\n");
+}
+
+string ImmutableEnumFieldGenerator::GetBoxedType() const {
+ return name_resolver_->GetImmutableClassName(descriptor_->enum_type());
+}
+
+// ===================================================================
+
+ImmutableEnumOneofFieldGenerator::
+ImmutableEnumOneofFieldGenerator(const FieldDescriptor* descriptor,
+ int messageBitIndex,
+ int builderBitIndex,
+ Context* context)
+ : ImmutableEnumFieldGenerator(
+ descriptor, messageBitIndex, builderBitIndex, context) {
+ const OneofGeneratorInfo* info =
+ context->GetOneofGeneratorInfo(descriptor->containing_oneof());
+ SetCommonOneofVariables(descriptor, info, &variables_);
+}
+
+ImmutableEnumOneofFieldGenerator::
+~ImmutableEnumOneofFieldGenerator() {}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateMembers(io::Printer* printer) const {
+ PrintExtraFieldInfo(variables_, printer);
+ if (SupportFieldPresence(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
+ " return $has_oneof_case_message$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Value$}$() {\n"
+ " if ($has_oneof_case_message$) {\n"
+ " return (java.lang.Integer) $oneof_name$_;\n"
+ " }\n"
+ " return $default_number$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public $type$ ${$get$capitalized_name$$}$() {\n"
+ " if ($has_oneof_case_message$) {\n"
+ " $type$ result = $type$.$for_number$(\n"
+ " (java.lang.Integer) $oneof_name$_);\n"
+ " return result == null ? $unknown$ : result;\n"
+ " }\n"
+ " return $default$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateBuilderMembers(io::Printer* printer) const {
+ if (SupportFieldPresence(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public boolean ${$has$capitalized_name$$}$() {\n"
+ " return $has_oneof_case_message$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Value$}$() {\n"
+ " if ($has_oneof_case_message$) {\n"
+ " return ((java.lang.Integer) $oneof_name$_).intValue();\n"
+ " }\n"
+ " return $default_number$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder "
+ "${$set$capitalized_name$Value$}$(int value) {\n"
+ " $set_oneof_case_message$;\n"
+ " $oneof_name$_ = value;\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public $type$ ${$get$capitalized_name$$}$() {\n"
+ " if ($has_oneof_case_message$) {\n"
+ " $type$ result = $type$.$for_number$(\n"
+ " (java.lang.Integer) $oneof_name$_);\n"
+ " return result == null ? $unknown$ : result;\n"
+ " }\n"
+ " return $default$;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$set$capitalized_name$$}$($type$ value) {\n"
+ " if (value == null) {\n"
+ " throw new NullPointerException();\n"
+ " }\n"
+ " $set_oneof_case_message$;\n"
+ " $oneof_name$_ = value.getNumber();\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$clear$capitalized_name$$}$() {\n"
+ " if ($has_oneof_case_message$) {\n"
+ " $clear_oneof_case_message$;\n"
+ " $oneof_name$_ = null;\n"
+ " $on_changed$\n"
+ " }\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateBuildingCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($has_oneof_case_message$) {\n"
+ " result.$oneof_name$_ = $oneof_name$_;\n"
+ "}\n");
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateMergingCode(io::Printer* printer) const {
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ printer->Print(variables_,
+ "set$capitalized_name$Value(other.get$capitalized_name$Value());\n");
+ } else {
+ printer->Print(variables_,
+ "set$capitalized_name$(other.get$capitalized_name$());\n");
+ }
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateParsingCode(io::Printer* printer) const {
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ printer->Print(variables_,
+ "int rawValue = input.readEnum();\n"
+ "$set_oneof_case_message$;\n"
+ "$oneof_name$_ = rawValue;\n");
+ } else {
+ printer->Print(variables_,
+ "int rawValue = input.readEnum();\n"
+ "$type$ value = $type$.$for_number$(rawValue);\n"
+ "if (value == null) {\n"
+ " unknownFields.mergeVarintField($number$, rawValue);\n"
+ "} else {\n"
+ " $set_oneof_case_message$;\n"
+ " $oneof_name$_ = rawValue;\n"
+ "}\n");
+ }
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($has_oneof_case_message$) {\n"
+ " output.writeEnum($number$, ((java.lang.Integer) $oneof_name$_));\n"
+ "}\n");
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($has_oneof_case_message$) {\n"
+ " size += com.google.protobuf.CodedOutputStream\n"
+ " .computeEnumSize($number$, ((java.lang.Integer) $oneof_name$_));\n"
+ "}\n");
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateEqualsCode(io::Printer* printer) const {
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ printer->Print(variables_,
+ "result = result && get$capitalized_name$Value()\n"
+ " == other.get$capitalized_name$Value();\n");
+ } else {
+ printer->Print(variables_,
+ "result = result && get$capitalized_name$()\n"
+ " .equals(other.get$capitalized_name$());\n");
+ }
+}
+
+void ImmutableEnumOneofFieldGenerator::
+GenerateHashCode(io::Printer* printer) const {
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ printer->Print(variables_,
+ "hash = (37 * hash) + $constant_name$;\n"
+ "hash = (53 * hash) + get$capitalized_name$Value();\n");
+ } else {
+ printer->Print(variables_,
+ "hash = (37 * hash) + $constant_name$;\n"
+ "hash = (53 * hash) + get$capitalized_name$().getNumber();\n");
+ }
+}
+
+// ===================================================================
+
+RepeatedImmutableEnumFieldGenerator::
+RepeatedImmutableEnumFieldGenerator(const FieldDescriptor* descriptor,
+ int messageBitIndex,
+ int builderBitIndex,
+ Context* context)
+ : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
+ builderBitIndex_(builderBitIndex), context_(context),
+ name_resolver_(context->GetNameResolver()) {
+ SetEnumVariables(descriptor, messageBitIndex, builderBitIndex,
+ context->GetFieldGeneratorInfo(descriptor),
+ name_resolver_, &variables_);
+}
+
+RepeatedImmutableEnumFieldGenerator::~RepeatedImmutableEnumFieldGenerator() {}
+
+int RepeatedImmutableEnumFieldGenerator::GetNumBitsForMessage() const {
+ return 0;
+}
+
+int RepeatedImmutableEnumFieldGenerator::GetNumBitsForBuilder() const {
+ return 1;
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateInterfaceMembers(io::Printer* printer) const {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$java.util.List<$type$> get$capitalized_name$List();\n");
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$int get$capitalized_name$Count();\n");
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$$type$ get$capitalized_name$(int index);\n");
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$java.util.List<java.lang.Integer>\n"
+ "get$capitalized_name$ValueList();\n");
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$int get$capitalized_name$Value(int index);\n");
+ }
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateMembers(io::Printer* printer) const {
+ printer->Print(variables_,
+ "private java.util.List<java.lang.Integer> $name$_;\n"
+ "private static final com.google.protobuf.Internal.ListAdapter.Converter<\n"
+ " java.lang.Integer, $type$> $name$_converter_ =\n"
+ " new com.google.protobuf.Internal.ListAdapter.Converter<\n"
+ " java.lang.Integer, $type$>() {\n"
+ " public $type$ convert(java.lang.Integer from) {\n"
+ " $type$ result = $type$.$for_number$(from);\n"
+ " return result == null ? $unknown$ : result;\n"
+ " }\n"
+ " };\n");
+ PrintExtraFieldInfo(variables_, printer);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public java.util.List<$type$> "
+ "${$get$capitalized_name$List$}$() {\n"
+ " return new com.google.protobuf.Internal.ListAdapter<\n"
+ " java.lang.Integer, $type$>($name$_, $name$_converter_);\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Count$}$() {\n"
+ " return $name$_.size();\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public $type$ ${$get$capitalized_name$$}$(int index) {\n"
+ " return $name$_converter_.convert($name$_.get(index));\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public java.util.List<java.lang.Integer>\n"
+ "${$get$capitalized_name$ValueList$}$() {\n"
+ " return $name$_;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Value$}$(int index) {\n"
+ " return $name$_.get(index);\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+
+ if (descriptor_->is_packed() &&
+ context_->HasGeneratedMethods(descriptor_->containing_type())) {
+ printer->Print(variables_,
+ "private int $name$MemoizedSerializedSize;\n");
+ }
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateBuilderMembers(io::Printer* printer) const {
+ printer->Print(variables_,
+ // One field is the list and the other field keeps track of whether the
+ // list is immutable. If it's immutable, the invariant is that it must
+ // either an instance of Collections.emptyList() or it's an ArrayList
+ // wrapped in a Collections.unmodifiableList() wrapper and nobody else has
+ // a refererence to the underlying ArrayList. This invariant allows us to
+ // share instances of lists between protocol buffers avoiding expensive
+ // memory allocations. Note, immutable is a strong guarantee here -- not
+ // just that the list cannot be modified via the reference but that the
+ // list can never be modified.
+ "private java.util.List<java.lang.Integer> $name$_ =\n"
+ " java.util.Collections.emptyList();\n"
+
+ "private void ensure$capitalized_name$IsMutable() {\n"
+ " if (!$get_mutable_bit_builder$) {\n"
+ " $name$_ = new java.util.ArrayList<java.lang.Integer>($name$_);\n"
+ " $set_mutable_bit_builder$;\n"
+ " }\n"
+ "}\n");
+
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ // Note: We return an unmodifiable list because otherwise the caller
+ // could hold on to the returned list and modify it after the message
+ // has been built, thus mutating the message which is supposed to be
+ // immutable.
+ "$deprecation$public java.util.List<$type$> "
+ "${$get$capitalized_name$List$}$() {\n"
+ " return new com.google.protobuf.Internal.ListAdapter<\n"
+ " java.lang.Integer, $type$>($name$_, $name$_converter_);\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Count$}$() {\n"
+ " return $name$_.size();\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public $type$ ${$get$capitalized_name$$}$(int index) {\n"
+ " return $name$_converter_.convert($name$_.get(index));\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$set$capitalized_name$$}$(\n"
+ " int index, $type$ value) {\n"
+ " if (value == null) {\n"
+ " throw new NullPointerException();\n"
+ " }\n"
+ " ensure$capitalized_name$IsMutable();\n"
+ " $name$_.set(index, value.getNumber());\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$add$capitalized_name$$}$($type$ value) {\n"
+ " if (value == null) {\n"
+ " throw new NullPointerException();\n"
+ " }\n"
+ " ensure$capitalized_name$IsMutable();\n"
+ " $name$_.add(value.getNumber());\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$addAll$capitalized_name$$}$(\n"
+ " java.lang.Iterable<? extends $type$> values) {\n"
+ " ensure$capitalized_name$IsMutable();\n"
+ " for ($type$ value : values) {\n"
+ " $name$_.add(value.getNumber());\n"
+ " }\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$clear$capitalized_name$$}$() {\n"
+ " $name$_ = java.util.Collections.emptyList();\n"
+ " $clear_mutable_bit_builder$;\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public java.util.List<java.lang.Integer>\n"
+ "${$get$capitalized_name$ValueList$}$() {\n"
+ " return java.util.Collections.unmodifiableList($name$_);\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public int ${$get$capitalized_name$Value$}$(int index) {\n"
+ " return $name$_.get(index);\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$set$capitalized_name$Value$}$(\n"
+ " int index, int value) {\n"
+ " ensure$capitalized_name$IsMutable();\n"
+ " $name$_.set(index, value);\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder "
+ "${$add$capitalized_name$Value$}$(int value) {\n"
+ " ensure$capitalized_name$IsMutable();\n"
+ " $name$_.add(value);\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ WriteFieldDocComment(printer, descriptor_);
+ printer->Print(variables_,
+ "$deprecation$public Builder ${$addAll$capitalized_name$Value$}$(\n"
+ " java.lang.Iterable<java.lang.Integer> values) {\n"
+ " ensure$capitalized_name$IsMutable();\n"
+ " for (int value : values) {\n"
+ " $name$_.add(value);\n"
+ " }\n"
+ " $on_changed$\n"
+ " return this;\n"
+ "}\n");
+ printer->Annotate("{", "}", descriptor_);
+ }
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
+ // noop for enums
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateInitializationCode(io::Printer* printer) const {
+ printer->Print(variables_, "$name$_ = java.util.Collections.emptyList();\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateBuilderClearCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "$name$_ = java.util.Collections.emptyList();\n"
+ "$clear_mutable_bit_builder$;\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateMergingCode(io::Printer* printer) const {
+ // The code below does two optimizations:
+ // 1. If the other list is empty, there's nothing to do. This ensures we
+ // don't allocate a new array if we already have an immutable one.
+ // 2. If the other list is non-empty and our current list is empty, we can
+ // reuse the other list which is guaranteed to be immutable.
+ printer->Print(variables_,
+ "if (!other.$name$_.isEmpty()) {\n"
+ " if ($name$_.isEmpty()) {\n"
+ " $name$_ = other.$name$_;\n"
+ " $clear_mutable_bit_builder$;\n"
+ " } else {\n"
+ " ensure$capitalized_name$IsMutable();\n"
+ " $name$_.addAll(other.$name$_);\n"
+ " }\n"
+ " $on_changed$\n"
+ "}\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateBuildingCode(io::Printer* printer) const {
+ // The code below ensures that the result has an immutable list. If our
+ // list is immutable, we can just reuse it. If not, we make it immutable.
+ printer->Print(variables_,
+ "if ($get_mutable_bit_builder$) {\n"
+ " $name$_ = java.util.Collections.unmodifiableList($name$_);\n"
+ " $clear_mutable_bit_builder$;\n"
+ "}\n"
+ "result.$name$_ = $name$_;\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateParsingCode(io::Printer* printer) const {
+ // Read and store the enum
+ if (SupportUnknownEnumValue(descriptor_->file())) {
+ printer->Print(variables_,
+ "int rawValue = input.readEnum();\n"
+ "if (!$get_mutable_bit_parser$) {\n"
+ " $name$_ = new java.util.ArrayList<java.lang.Integer>();\n"
+ " $set_mutable_bit_parser$;\n"
+ "}\n"
+ "$name$_.add(rawValue);\n");
+ } else {
+ printer->Print(variables_,
+ "int rawValue = input.readEnum();\n"
+ "$type$ value = $type$.$for_number$(rawValue);\n"
+ "if (value == null) {\n"
+ " unknownFields.mergeVarintField($number$, rawValue);\n"
+ "} else {\n"
+ " if (!$get_mutable_bit_parser$) {\n"
+ " $name$_ = new java.util.ArrayList<java.lang.Integer>();\n"
+ " $set_mutable_bit_parser$;\n"
+ " }\n"
+ " $name$_.add(rawValue);\n"
+ "}\n");
+ }
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateParsingCodeFromPacked(io::Printer* printer) const {
+ // Wrap GenerateParsingCode's contents with a while loop.
+
+ printer->Print(variables_,
+ "int length = input.readRawVarint32();\n"
+ "int oldLimit = input.pushLimit(length);\n"
+ "while(input.getBytesUntilLimit() > 0) {\n");
+ printer->Indent();
+
+ GenerateParsingCode(printer);
+
+ printer->Outdent();
+ printer->Print(variables_,
+ "}\n"
+ "input.popLimit(oldLimit);\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateParsingDoneCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if ($get_mutable_bit_parser$) {\n"
+ " $name$_ = java.util.Collections.unmodifiableList($name$_);\n"
+ "}\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateSerializationCode(io::Printer* printer) const {
+ if (descriptor_->is_packed()) {
+ printer->Print(variables_,
+ "if (get$capitalized_name$List().size() > 0) {\n"
+ " output.writeUInt32NoTag($tag$);\n"
+ " output.writeUInt32NoTag($name$MemoizedSerializedSize);\n"
+ "}\n"
+ "for (int i = 0; i < $name$_.size(); i++) {\n"
+ " output.writeEnumNoTag($name$_.get(i));\n"
+ "}\n");
+ } else {
+ printer->Print(variables_,
+ "for (int i = 0; i < $name$_.size(); i++) {\n"
+ " output.writeEnum($number$, $name$_.get(i));\n"
+ "}\n");
+ }
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateSerializedSizeCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "{\n"
+ " int dataSize = 0;\n");
+ printer->Indent();
+
+ printer->Print(variables_,
+ "for (int i = 0; i < $name$_.size(); i++) {\n"
+ " dataSize += com.google.protobuf.CodedOutputStream\n"
+ " .computeEnumSizeNoTag($name$_.get(i));\n"
+ "}\n");
+ printer->Print(
+ "size += dataSize;\n");
+ if (descriptor_->is_packed()) {
+ printer->Print(variables_,
+ "if (!get$capitalized_name$List().isEmpty()) {"
+ " size += $tag_size$;\n"
+ " size += com.google.protobuf.CodedOutputStream\n"
+ " .computeUInt32SizeNoTag(dataSize);\n"
+ "}");
+ } else {
+ printer->Print(variables_,
+ "size += $tag_size$ * $name$_.size();\n");
+ }
+
+ // cache the data size for packed fields.
+ if (descriptor_->is_packed()) {
+ printer->Print(variables_,
+ "$name$MemoizedSerializedSize = dataSize;\n");
+ }
+
+ printer->Outdent();
+ printer->Print("}\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateEqualsCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "result = result && $name$_.equals(other.$name$_);\n");
+}
+
+void RepeatedImmutableEnumFieldGenerator::
+GenerateHashCode(io::Printer* printer) const {
+ printer->Print(variables_,
+ "if (get$capitalized_name$Count() > 0) {\n"
+ " hash = (37 * hash) + $constant_name$;\n"
+ " hash = (53 * hash) + $name$_.hashCode();\n"
+ "}\n");
+}
+
+string RepeatedImmutableEnumFieldGenerator::GetBoxedType() const {
+ return name_resolver_->GetImmutableClassName(descriptor_->enum_type());
+}
+
+} // namespace java
+} // namespace compiler
+} // namespace protobuf
+} // namespace google
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-28 20:31:51 +0000