Revert https://codereview.chromium.org/1291903002 (protobuf roll).

third_party/protobuf/src/google/protobuf/compiler/java/java_map_field.cc

Index: third_party/protobuf/src/google/protobuf/compiler/java/java_map_field.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/java/java_map_field.cc b/third_party/protobuf/src/google/protobuf/compiler/java/java_map_field.cc
deleted file mode 100644
index 44b86cd74d16e76ead9a8ec6feda97d0902dc5d5..0000000000000000000000000000000000000000
--- a/third_party/protobuf/src/google/protobuf/compiler/java/java_map_field.cc
+++ /dev/null
@@ -1,479 +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.
-
-#include <google/protobuf/compiler/java/java_map_field.h>
-
-#include <google/protobuf/compiler/java/java_context.h>
-#include <google/protobuf/compiler/java/java_doc_comment.h>
-#include <google/protobuf/compiler/java/java_helpers.h>
-#include <google/protobuf/compiler/java/java_name_resolver.h>
-#include <google/protobuf/io/printer.h>
-
-namespace google {
-namespace protobuf {
-namespace compiler {
-namespace java {
-
-namespace {
-
-const FieldDescriptor* KeyField(const FieldDescriptor* descriptor) {
-  GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, descriptor->type());
-  const Descriptor* message = descriptor->message_type();
-  GOOGLE_CHECK(message->options().map_entry());
-  return message->FindFieldByName("key");
-}
-
-const FieldDescriptor* ValueField(const FieldDescriptor* descriptor) {
-  GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, descriptor->type());
-  const Descriptor* message = descriptor->message_type();
-  GOOGLE_CHECK(message->options().map_entry());
-  return message->FindFieldByName("value");
-}
-
-string TypeName(const FieldDescriptor* field,
-                ClassNameResolver* name_resolver,
-                bool boxed) {
-  if (GetJavaType(field) == JAVATYPE_MESSAGE) {
-    return name_resolver->GetImmutableClassName(field->message_type());
-  } else if (GetJavaType(field) == JAVATYPE_ENUM) {
-    return name_resolver->GetImmutableClassName(field->enum_type());
-  } else {
-    return boxed ? BoxedPrimitiveTypeName(GetJavaType(field))
-                 : PrimitiveTypeName(GetJavaType(field));
-  }
-}
-
-string WireType(const FieldDescriptor* field) {
-  return "com.google.protobuf.WireFormat.FieldType." +
-      string(FieldTypeName(field->type()));
-}
-
-void SetMessageVariables(const FieldDescriptor* descriptor,
-                         int messageBitIndex,
-                         int builderBitIndex,
-                         const FieldGeneratorInfo* info,
-                         ClassNameResolver* name_resolver,
-                         map<string, string>* variables) {
-  SetCommonFieldVariables(descriptor, info, variables);
-
-  (*variables)["type"] =
-      name_resolver->GetImmutableClassName(descriptor->message_type());
-  const FieldDescriptor* key = KeyField(descriptor);
-  const FieldDescriptor* value = ValueField(descriptor);
-  (*variables)["key_type"] = TypeName(key, name_resolver, false);
-  (*variables)["boxed_key_type"] = TypeName(key, name_resolver, true);
-  (*variables)["key_wire_type"] = WireType(key);
-  (*variables)["key_default_value"] = DefaultValue(key, true, name_resolver);
-  if (GetJavaType(value) == JAVATYPE_ENUM) {
-    // We store enums as Integers internally.
-    (*variables)["value_type"] = "int";
-    (*variables)["boxed_value_type"] = "java.lang.Integer";
-    (*variables)["value_wire_type"] = WireType(value);
-    (*variables)["value_default_value"] =
-        DefaultValue(value, true, name_resolver) + ".getNumber()";
-
-    (*variables)["value_enum_type"] = TypeName(value, name_resolver, false);
-
-    if (SupportUnknownEnumValue(descriptor->file())) {
-      // Map unknown values to a special UNRECOGNIZED value if supported.
-      (*variables)["unrecognized_value"] =
-          (*variables)["value_enum_type"] + ".UNRECOGNIZED";
-    } else {
-      // Map unknown values to the default value if we don't have UNRECOGNIZED.
-      (*variables)["unrecognized_value"] =
-          DefaultValue(value, true, name_resolver);
-    }
-  } else {
-    (*variables)["value_type"] = TypeName(value, name_resolver, false);
-    (*variables)["boxed_value_type"] = TypeName(value, name_resolver, true);
-    (*variables)["value_wire_type"] = WireType(value);
-    (*variables)["value_default_value"] =
-        DefaultValue(value, true, name_resolver);
-  }
-  (*variables)["type_parameters"] =
-      (*variables)["boxed_key_type"] + ", " + (*variables)["boxed_value_type"];
-  // 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 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)["default_entry"] = (*variables)["capitalized_name"] +
-      "DefaultEntryHolder.defaultEntry";
-  if (HasDescriptorMethods(descriptor->file())) {
-    (*variables)["lite"] = "";
-    (*variables)["map_field_parameter"] = (*variables)["default_entry"];
-    (*variables)["descriptor"] =
-        name_resolver->GetImmutableClassName(descriptor->file()) +
-        ".internal_" + UniqueFileScopeIdentifier(descriptor->message_type()) +
-        "_descriptor, ";
-  } else {
-    (*variables)["lite"] = "Lite";
-    (*variables)["map_field_parameter"] = "";
-    (*variables)["descriptor"] = "";
-  }
-}
-
-}  // namespace
-
-ImmutableMapFieldGenerator::
-ImmutableMapFieldGenerator(const FieldDescriptor* descriptor,
-                                       int messageBitIndex,
-                                       int builderBitIndex,
-                                       Context* context)
-  : descriptor_(descriptor), name_resolver_(context->GetNameResolver())  {
-  SetMessageVariables(descriptor, messageBitIndex, builderBitIndex,
-                      context->GetFieldGeneratorInfo(descriptor),
-                      name_resolver_, &variables_);
-}
-
-ImmutableMapFieldGenerator::
-~ImmutableMapFieldGenerator() {}
-
-int ImmutableMapFieldGenerator::GetNumBitsForMessage() const {
-  return 0;
-}
-
-int ImmutableMapFieldGenerator::GetNumBitsForBuilder() const {
-  return 1;
-}
-
-void ImmutableMapFieldGenerator::
-GenerateInterfaceMembers(io::Printer* printer) const {
-  if (GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "$deprecation$java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
-        "get$capitalized_name$();\n");
-    if (SupportUnknownEnumValue(descriptor_->file())) {
-      WriteFieldDocComment(printer, descriptor_);
-      printer->Print(
-          variables_,
-          "$deprecation$java.util.Map<$type_parameters$>\n"
-          "get$capitalized_name$Value();\n");
-    }
-  } else {
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "$deprecation$java.util.Map<$type_parameters$>\n"
-        "get$capitalized_name$();\n");
-  }
-}
-
-void ImmutableMapFieldGenerator::
-GenerateMembers(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "private static final class $capitalized_name$DefaultEntryHolder {\n"
-      "  static final com.google.protobuf.MapEntry$lite$<\n"
-      "      $type_parameters$> defaultEntry =\n"
-      "          com.google.protobuf.MapEntry$lite$\n"
-      "          .<$type_parameters$>newDefaultInstance(\n"
-      "              $descriptor$\n"
-      "              $key_wire_type$,\n"
-      "              $key_default_value$,\n"
-      "              $value_wire_type$,\n"
-      "              $value_default_value$);\n"
-      "}\n");
-  printer->Print(
-      variables_,
-      "private com.google.protobuf.MapField$lite$<\n"
-      "    $type_parameters$> $name$_;\n"
-      "private com.google.protobuf.MapField$lite$<$type_parameters$>\n"
-      "internalGet$capitalized_name$() {\n"
-      "  if ($name$_ == null) {\n"
-      "    return com.google.protobuf.MapField$lite$.emptyMapField(\n"
-      "        $map_field_parameter$);\n"
-      " }\n"
-      "  return $name$_;\n"
-      "}\n");
-  if (GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
-    printer->Print(
-        variables_,
-        "private static final\n"
-        "com.google.protobuf.Internal.MapAdapter.Converter<\n"
-        "    java.lang.Integer, $value_enum_type$> $name$ValueConverter =\n"
-        "        com.google.protobuf.Internal.MapAdapter.newEnumConverter(\n"
-        "            $value_enum_type$.internalGetValueMap(),\n"
-        "            $unrecognized_value$);\n");
-    if (SupportUnknownEnumValue(descriptor_->file())) {
-      WriteFieldDocComment(printer, descriptor_);
-      printer->Print(
-          variables_,
-          "$deprecation$\n"
-          "public java.util.Map<$boxed_key_type$, $boxed_value_type$>\n"
-          "get$capitalized_name$Value() {\n"
-          "  return internalGet$capitalized_name$().getMap();\n"
-          "}\n");
-    }
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "$deprecation$\n"
-        "public java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
-        "get$capitalized_name$() {\n"
-        "  return new com.google.protobuf.Internal.MapAdapter<\n"
-        "      $boxed_key_type$, $value_enum_type$, java.lang.Integer>(\n"
-        "          internalGet$capitalized_name$().getMap(),\n"
-        "          $name$ValueConverter);\n"
-        "}\n");
-  } else {
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "$deprecation$\n"
-        "public java.util.Map<$type_parameters$> get$capitalized_name$() {\n"
-        "  return internalGet$capitalized_name$().getMap();\n"
-        "}\n");
-  }
-}
-
-void ImmutableMapFieldGenerator::
-GenerateBuilderMembers(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "private com.google.protobuf.MapField$lite$<\n"
-      "    $type_parameters$> $name$_;\n"
-      "private com.google.protobuf.MapField$lite$<$type_parameters$>\n"
-      "internalGet$capitalized_name$() {\n"
-      "  if ($name$_ == null) {\n"
-      "    return com.google.protobuf.MapField$lite$.emptyMapField(\n"
-      "        $map_field_parameter$);\n"
-      " }\n"
-      "  return $name$_;\n"
-      "}\n"
-      "private com.google.protobuf.MapField$lite$<$type_parameters$>\n"
-      "internalGetMutable$capitalized_name$() {\n"
-      "  $on_changed$;\n"
-      "  if ($name$_ == null) {\n"
-      "    $name$_ = com.google.protobuf.MapField$lite$.newMapField(\n"
-      "        $map_field_parameter$);\n"
-      "  }\n"
-      "  if (!$name$_.isMutable()) {\n"
-      "    $name$_ = $name$_.copy();\n"
-      "  }\n"
-      "  return $name$_;\n"
-      "}\n");
-  if (GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "$deprecation$\n"
-        "public java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
-        "get$capitalized_name$() {\n"
-        "  return new com.google.protobuf.Internal.MapAdapter<\n"
-        "      $boxed_key_type$, $value_enum_type$, java.lang.Integer>(\n"
-        "          internalGet$capitalized_name$().getMap(),\n"
-        "          $name$ValueConverter);\n"
-        "}\n");
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "$deprecation$\n"
-        "public java.util.Map<$boxed_key_type$, $value_enum_type$>\n"
-        "getMutable$capitalized_name$() {\n"
-        "  return new com.google.protobuf.Internal.MapAdapter<\n"
-        "      $boxed_key_type$, $value_enum_type$, java.lang.Integer>(\n"
-        "          internalGetMutable$capitalized_name$().getMutableMap(),\n"
-        "          $name$ValueConverter);\n"
-        "}\n");
-    if (SupportUnknownEnumValue(descriptor_->file())) {
-      WriteFieldDocComment(printer, descriptor_);
-      printer->Print(
-          variables_,
-          "$deprecation$\n"
-          "public java.util.Map<$boxed_key_type$, $boxed_value_type$>\n"
-          "get$capitalized_name$Value() {\n"
-          "  return internalGet$capitalized_name$().getMap();\n"
-          "}\n");
-      WriteFieldDocComment(printer, descriptor_);
-      printer->Print(
-          variables_,
-          "$deprecation$\n"
-          "public java.util.Map<$boxed_key_type$, $boxed_value_type$>\n"
-          "getMutable$capitalized_name$Value() {\n"
-          "  return internalGetMutable$capitalized_name$().getMutableMap();\n"
-          "}\n");
-    }
-  } else {
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "public java.util.Map<$type_parameters$> get$capitalized_name$() {\n"
-        "  return internalGet$capitalized_name$().getMap();\n"
-        "}\n");
-    WriteFieldDocComment(printer, descriptor_);
-    printer->Print(
-        variables_,
-        "public java.util.Map<$type_parameters$>\n"
-        "getMutable$capitalized_name$() {\n"
-        "  return internalGetMutable$capitalized_name$().getMutableMap();\n"
-        "}\n");
-  }
-}
-
-void ImmutableMapFieldGenerator::
-GenerateFieldBuilderInitializationCode(io::Printer* printer)  const {
-  // Nothing to initialize.
-}
-
-void ImmutableMapFieldGenerator::
-GenerateInitializationCode(io::Printer* printer) const {
-  // Nothing to initialize.
-}
-
-void ImmutableMapFieldGenerator::
-GenerateBuilderClearCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "internalGetMutable$capitalized_name$().clear();\n");
-}
-
-void ImmutableMapFieldGenerator::
-GenerateMergingCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "internalGetMutable$capitalized_name$().mergeFrom(\n"
-      "    other.internalGet$capitalized_name$());\n");
-}
-
-void ImmutableMapFieldGenerator::
-GenerateBuildingCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "result.$name$_ = internalGet$capitalized_name$();\n"
-      "result.$name$_.makeImmutable();\n");
-}
-
-void ImmutableMapFieldGenerator::
-GenerateParsingCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "if (!$get_mutable_bit_parser$) {\n"
-      "  $name$_ = com.google.protobuf.MapField$lite$.newMapField(\n"
-      "      $map_field_parameter$);\n"
-      "  $set_mutable_bit_parser$;\n"
-      "}\n");
-  if (!SupportUnknownEnumValue(descriptor_->file()) &&
-      GetJavaType(ValueField(descriptor_)) == JAVATYPE_ENUM) {
-    printer->Print(
-        variables_,
-        "com.google.protobuf.ByteString bytes = input.readBytes();\n"
-        "com.google.protobuf.MapEntry$lite$<$type_parameters$>\n"
-        "$name$ = $default_entry$.getParserForType().parseFrom(bytes);\n");
-    printer->Print(
-        variables_,
-        "if ($value_enum_type$.valueOf($name$.getValue()) == null) {\n"
-        "  unknownFields.mergeLengthDelimitedField($number$, bytes);\n"
-        "} else {\n"
-        "  $name$_.getMutableMap().put($name$.getKey(), $name$.getValue());\n"
-        "}\n");
-  } else {
-    printer->Print(
-        variables_,
-        "com.google.protobuf.MapEntry$lite$<$type_parameters$>\n"
-        "$name$ = input.readMessage(\n"
-        "    $default_entry$.getParserForType(), extensionRegistry);\n"
-        "$name$_.getMutableMap().put($name$.getKey(), $name$.getValue());\n");
-  }
-}
-
-void ImmutableMapFieldGenerator::
-GenerateParsingDoneCode(io::Printer* printer) const {
-  // Nothing to do here.
-}
-
-void ImmutableMapFieldGenerator::
-GenerateSerializationCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "for (java.util.Map.Entry<$type_parameters$> entry\n"
-      "     : internalGet$capitalized_name$().getMap().entrySet()) {\n"
-      "  com.google.protobuf.MapEntry$lite$<$type_parameters$>\n"
-      "  $name$ = $default_entry$.newBuilderForType()\n"
-      "      .setKey(entry.getKey())\n"
-      "      .setValue(entry.getValue())\n"
-      "      .build();\n"
-      "  output.writeMessage($number$, $name$);\n"
-      "}\n");
-}
-
-void ImmutableMapFieldGenerator::
-GenerateSerializedSizeCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "for (java.util.Map.Entry<$type_parameters$> entry\n"
-      "     : internalGet$capitalized_name$().getMap().entrySet()) {\n"
-      "  com.google.protobuf.MapEntry$lite$<$type_parameters$>\n"
-      "  $name$ = $default_entry$.newBuilderForType()\n"
-      "      .setKey(entry.getKey())\n"
-      "      .setValue(entry.getValue())\n"
-      "      .build();\n"
-      "  size += com.google.protobuf.CodedOutputStream\n"
-      "      .computeMessageSize($number$, $name$);\n"
-      "}\n");
-}
-
-void ImmutableMapFieldGenerator::
-GenerateEqualsCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "result = result && internalGet$capitalized_name$().equals(\n"
-      "    other.internalGet$capitalized_name$());\n");
-}
-
-void ImmutableMapFieldGenerator::
-GenerateHashCode(io::Printer* printer) const {
-  printer->Print(
-      variables_,
-      "if (!internalGet$capitalized_name$().getMap().isEmpty()) {\n"
-      "  hash = (37 * hash) + $constant_name$;\n"
-      "  hash = (53 * hash) + internalGet$capitalized_name$().hashCode();\n"
-      "}\n");
-}
-
-string ImmutableMapFieldGenerator::GetBoxedType() const {
-  return name_resolver_->GetImmutableClassName(descriptor_->message_type());
-}
-
-}  // namespace java
-}  // namespace compiler
-}  // namespace protobuf
-}  // namespace google