/thirdparty/breakpad/third_party/protobuf/protobuf/src/google/protobuf/compiler/java/java_enum_field.cc
http://github.com/tomahawk-player/tomahawk · C++ · 537 lines · 412 code · 60 blank · 65 comment · 10 complexity · d6bdcbfccfa38cdc9c76565db82f22f3 MD5 · raw file
- // Protocol Buffers - Google's data interchange format
- // Copyright 2008 Google Inc. All rights reserved.
- // http://code.google.com/p/protobuf/
- //
- // 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/compiler/java/java_enum_field.h>
- #include <google/protobuf/stubs/common.h>
- #include <google/protobuf/compiler/java/java_helpers.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 {
- // TODO(kenton): Factor out a "SetCommonFieldVariables()" to get rid of
- // repeat code between this and the other field types.
- void SetEnumVariables(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex,
- map<string, string>* variables) {
- (*variables)["name"] =
- UnderscoresToCamelCase(descriptor);
- (*variables)["capitalized_name"] =
- UnderscoresToCapitalizedCamelCase(descriptor);
- (*variables)["constant_name"] = FieldConstantName(descriptor);
- (*variables)["number"] = SimpleItoa(descriptor->number());
- (*variables)["type"] = ClassName(descriptor->enum_type());
- (*variables)["default"] = DefaultValue(descriptor);
- (*variables)["tag"] = SimpleItoa(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"] =
- HasDescriptorMethods(descriptor->containing_type()) ? "onChanged();" : "";
- // 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);
- (*variables)["set_has_field_bit_builder"] = GenerateSetBit(builderBitIndex);
- (*variables)["clear_has_field_bit_builder"] =
- GenerateClearBit(builderBitIndex);
- // 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);
- (*variables)["get_has_field_bit_from_local"] =
- GenerateGetBitFromLocal(builderBitIndex);
- (*variables)["set_has_field_bit_to_local"] =
- GenerateSetBitToLocal(messageBitIndex);
- }
- } // namespace
- // ===================================================================
- EnumFieldGenerator::
- EnumFieldGenerator(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex)
- : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
- builderBitIndex_(builderBitIndex) {
- SetEnumVariables(descriptor, messageBitIndex, builderBitIndex, &variables_);
- }
- EnumFieldGenerator::~EnumFieldGenerator() {}
- int EnumFieldGenerator::GetNumBitsForMessage() const {
- return 1;
- }
- int EnumFieldGenerator::GetNumBitsForBuilder() const {
- return 1;
- }
- void EnumFieldGenerator::
- GenerateInterfaceMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "$deprecation$boolean has$capitalized_name$();\n"
- "$deprecation$$type$ get$capitalized_name$();\n");
- }
- void EnumFieldGenerator::
- GenerateMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private $type$ $name$_;\n"
- "$deprecation$public boolean has$capitalized_name$() {\n"
- " return $get_has_field_bit_message$;\n"
- "}\n"
- "$deprecation$public $type$ get$capitalized_name$() {\n"
- " return $name$_;\n"
- "}\n");
- }
- void EnumFieldGenerator::
- GenerateBuilderMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private $type$ $name$_ = $default$;\n"
- "$deprecation$public boolean has$capitalized_name$() {\n"
- " return $get_has_field_bit_builder$;\n"
- "}\n"
- "$deprecation$public $type$ get$capitalized_name$() {\n"
- " return $name$_;\n"
- "}\n"
- "$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;\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n"
- "$deprecation$public Builder clear$capitalized_name$() {\n"
- " $clear_has_field_bit_builder$;\n"
- " $name$_ = $default$;\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- }
- void EnumFieldGenerator::
- GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
- // noop for enums
- }
- void EnumFieldGenerator::
- GenerateInitializationCode(io::Printer* printer) const {
- printer->Print(variables_, "$name$_ = $default$;\n");
- }
- void EnumFieldGenerator::
- GenerateBuilderClearCode(io::Printer* printer) const {
- printer->Print(variables_,
- "$name$_ = $default$;\n"
- "$clear_has_field_bit_builder$;\n");
- }
- void EnumFieldGenerator::
- GenerateMergingCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if (other.has$capitalized_name$()) {\n"
- " set$capitalized_name$(other.get$capitalized_name$());\n"
- "}\n");
- }
- void EnumFieldGenerator::
- GenerateBuildingCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($get_has_field_bit_from_local$) {\n"
- " $set_has_field_bit_to_local$;\n"
- "}\n"
- "result.$name$_ = $name$_;\n");
- }
- void EnumFieldGenerator::
- GenerateParsingCode(io::Printer* printer) const {
- printer->Print(variables_,
- "int rawValue = input.readEnum();\n"
- "$type$ value = $type$.valueOf(rawValue);\n");
- if (HasUnknownFields(descriptor_->containing_type())) {
- printer->Print(variables_,
- "if (value == null) {\n"
- " unknownFields.mergeVarintField($number$, rawValue);\n"
- "} else {\n");
- } else {
- printer->Print(variables_,
- "if (value != null) {\n");
- }
- printer->Print(variables_,
- " $set_has_field_bit_builder$;\n"
- " $name$_ = value;\n"
- "}\n");
- }
- void EnumFieldGenerator::
- GenerateSerializationCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($get_has_field_bit_message$) {\n"
- " output.writeEnum($number$, $name$_.getNumber());\n"
- "}\n");
- }
- void EnumFieldGenerator::
- GenerateSerializedSizeCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if ($get_has_field_bit_message$) {\n"
- " size += com.google.protobuf.CodedOutputStream\n"
- " .computeEnumSize($number$, $name$_.getNumber());\n"
- "}\n");
- }
- void EnumFieldGenerator::
- GenerateEqualsCode(io::Printer* printer) const {
- printer->Print(variables_,
- "result = result &&\n"
- " (get$capitalized_name$() == other.get$capitalized_name$());\n");
- }
- void EnumFieldGenerator::
- GenerateHashCode(io::Printer* printer) const {
- printer->Print(variables_,
- "hash = (37 * hash) + $constant_name$;\n"
- "hash = (53 * hash) + hashEnum(get$capitalized_name$());\n");
- }
- string EnumFieldGenerator::GetBoxedType() const {
- return ClassName(descriptor_->enum_type());
- }
- // ===================================================================
- RepeatedEnumFieldGenerator::
- RepeatedEnumFieldGenerator(const FieldDescriptor* descriptor,
- int messageBitIndex,
- int builderBitIndex)
- : descriptor_(descriptor), messageBitIndex_(messageBitIndex),
- builderBitIndex_(builderBitIndex) {
- SetEnumVariables(descriptor, messageBitIndex, builderBitIndex, &variables_);
- }
- RepeatedEnumFieldGenerator::~RepeatedEnumFieldGenerator() {}
- int RepeatedEnumFieldGenerator::GetNumBitsForMessage() const {
- return 0;
- }
- int RepeatedEnumFieldGenerator::GetNumBitsForBuilder() const {
- return 1;
- }
- void RepeatedEnumFieldGenerator::
- GenerateInterfaceMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "$deprecation$java.util.List<$type$> get$capitalized_name$List();\n"
- "$deprecation$int get$capitalized_name$Count();\n"
- "$deprecation$$type$ get$capitalized_name$(int index);\n");
- }
- void RepeatedEnumFieldGenerator::
- GenerateMembers(io::Printer* printer) const {
- printer->Print(variables_,
- "private java.util.List<$type$> $name$_;\n"
- "$deprecation$public java.util.List<$type$> get$capitalized_name$List() {\n"
- " return $name$_;\n" // note: unmodifiable list
- "}\n"
- "$deprecation$public int get$capitalized_name$Count() {\n"
- " return $name$_.size();\n"
- "}\n"
- "$deprecation$public $type$ get$capitalized_name$(int index) {\n"
- " return $name$_.get(index);\n"
- "}\n");
- if (descriptor_->options().packed() &&
- HasGeneratedMethods(descriptor_->containing_type())) {
- printer->Print(variables_,
- "private int $name$MemoizedSerializedSize;\n");
- }
- }
- void RepeatedEnumFieldGenerator::
- 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<$type$> $name$_ =\n"
- " java.util.Collections.emptyList();\n"
- "private void ensure$capitalized_name$IsMutable() {\n"
- " if (!$get_mutable_bit_builder$) {\n"
- " $name$_ = new java.util.ArrayList<$type$>($name$_);\n"
- " $set_mutable_bit_builder$;\n"
- " }\n"
- "}\n"
- // 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 java.util.Collections.unmodifiableList($name$_);\n"
- "}\n"
- "$deprecation$public int get$capitalized_name$Count() {\n"
- " return $name$_.size();\n"
- "}\n"
- "$deprecation$public $type$ get$capitalized_name$(int index) {\n"
- " return $name$_.get(index);\n"
- "}\n"
- "$deprecation$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);\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n"
- "$deprecation$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);\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n"
- "$deprecation$public Builder addAll$capitalized_name$(\n"
- " java.lang.Iterable<? extends $type$> values) {\n"
- " ensure$capitalized_name$IsMutable();\n"
- " super.addAll(values, $name$_);\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n"
- "$deprecation$public Builder clear$capitalized_name$() {\n"
- " $name$_ = java.util.Collections.emptyList();\n"
- " $clear_mutable_bit_builder$;\n"
- " $on_changed$\n"
- " return this;\n"
- "}\n");
- }
- void RepeatedEnumFieldGenerator::
- GenerateFieldBuilderInitializationCode(io::Printer* printer) const {
- // noop for enums
- }
- void RepeatedEnumFieldGenerator::
- GenerateInitializationCode(io::Printer* printer) const {
- printer->Print(variables_, "$name$_ = java.util.Collections.emptyList();\n");
- }
- void RepeatedEnumFieldGenerator::
- GenerateBuilderClearCode(io::Printer* printer) const {
- printer->Print(variables_,
- "$name$_ = java.util.Collections.emptyList();\n"
- "$clear_mutable_bit_builder$;\n");
- }
- void RepeatedEnumFieldGenerator::
- 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 RepeatedEnumFieldGenerator::
- 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 RepeatedEnumFieldGenerator::
- GenerateParsingCode(io::Printer* printer) const {
- // Read and store the enum
- printer->Print(variables_,
- "int rawValue = input.readEnum();\n"
- "$type$ value = $type$.valueOf(rawValue);\n");
- if (HasUnknownFields(descriptor_->containing_type())) {
- printer->Print(variables_,
- "if (value == null) {\n"
- " unknownFields.mergeVarintField($number$, rawValue);\n"
- "} else {\n");
- } else {
- printer->Print(variables_,
- "if (value != null) {\n");
- }
- printer->Print(variables_,
- " add$capitalized_name$(value);\n"
- "}\n");
- }
- void RepeatedEnumFieldGenerator::
- 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 RepeatedEnumFieldGenerator::
- GenerateSerializationCode(io::Printer* printer) const {
- if (descriptor_->options().packed()) {
- printer->Print(variables_,
- "if (get$capitalized_name$List().size() > 0) {\n"
- " output.writeRawVarint32($tag$);\n"
- " output.writeRawVarint32($name$MemoizedSerializedSize);\n"
- "}\n"
- "for (int i = 0; i < $name$_.size(); i++) {\n"
- " output.writeEnumNoTag($name$_.get(i).getNumber());\n"
- "}\n");
- } else {
- printer->Print(variables_,
- "for (int i = 0; i < $name$_.size(); i++) {\n"
- " output.writeEnum($number$, $name$_.get(i).getNumber());\n"
- "}\n");
- }
- }
- void RepeatedEnumFieldGenerator::
- 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).getNumber());\n"
- "}\n");
- printer->Print(
- "size += dataSize;\n");
- if (descriptor_->options().packed()) {
- printer->Print(variables_,
- "if (!get$capitalized_name$List().isEmpty()) {"
- " size += $tag_size$;\n"
- " size += com.google.protobuf.CodedOutputStream\n"
- " .computeRawVarint32Size(dataSize);\n"
- "}");
- } else {
- printer->Print(variables_,
- "size += $tag_size$ * $name$_.size();\n");
- }
- // cache the data size for packed fields.
- if (descriptor_->options().packed()) {
- printer->Print(variables_,
- "$name$MemoizedSerializedSize = dataSize;\n");
- }
- printer->Outdent();
- printer->Print("}\n");
- }
- void RepeatedEnumFieldGenerator::
- GenerateEqualsCode(io::Printer* printer) const {
- printer->Print(variables_,
- "result = result && get$capitalized_name$List()\n"
- " .equals(other.get$capitalized_name$List());\n");
- }
- void RepeatedEnumFieldGenerator::
- GenerateHashCode(io::Printer* printer) const {
- printer->Print(variables_,
- "if (get$capitalized_name$Count() > 0) {\n"
- " hash = (37 * hash) + $constant_name$;\n"
- " hash = (53 * hash) + hashEnumList(get$capitalized_name$List());\n"
- "}\n");
- }
- string RepeatedEnumFieldGenerator::GetBoxedType() const {
- return ClassName(descriptor_->enum_type());
- }
- } // namespace java
- } // namespace compiler
- } // namespace protobuf
- } // namespace google