Rewrote C# protogen to C++ (initial version)

1 files changed, 183 insertions, 0 deletions

diff --git a/src/google/protobuf/compiler/csharp/csharp_message_field.cc b/src/google/protobuf/compiler/csharp/csharp_message_field.cc
new file mode 100644
index 00000000..10464c4b
--- /dev/null
+++ b/src/google/protobuf/compiler/csharp/csharp_message_field.cc
@@ -0,0 +1,183 @@
+// 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 <sstream>
+
+#include <google/protobuf/compiler/code_generator.h>
+#include <google/protobuf/compiler/plugin.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/io/printer.h>
+#include <google/protobuf/io/zero_copy_stream.h>
+#include <google/protobuf/stubs/strutil.h>
+
+#include <google/protobuf/compiler/csharp/csharp_helpers.h>
+#include <google/protobuf/compiler/csharp/csharp_message_field.h>
+#include <google/protobuf/compiler/csharp/csharp_writer.h>
+
+namespace google {
+namespace protobuf {
+namespace compiler {
+namespace csharp {
+
+MessageFieldGenerator::MessageFieldGenerator(const FieldDescriptor* descriptor,
+                                             int fieldOrdinal)
+    : FieldGeneratorBase(descriptor, fieldOrdinal) {
+}
+
+MessageFieldGenerator::~MessageFieldGenerator() {
+
+}
+
+void MessageFieldGenerator::GenerateMembers(Writer* writer) {
+  writer->WriteLine("private bool has$0$;", property_name());
+  writer->WriteLine("private $0$ $1$_;", type_name(), name());
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public bool Has$0$ {", property_name());
+  writer->WriteLine("  get { return has$0$; }", property_name());
+  writer->WriteLine("}");
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public $0$ $1$ {", type_name(), property_name());
+  writer->WriteLine("  get { return $0$_ ?? $1$; }", name(), default_value());
+  writer->WriteLine("}");
+}
+
+void MessageFieldGenerator::GenerateBuilderMembers(Writer* writer) {
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public bool Has$0$ {", property_name());
+  writer->WriteLine(" get { return result.has$0$; }", property_name());
+  writer->WriteLine("}");
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public $0$ $1$ {", type_name(), property_name());
+  writer->WriteLine("  get { return result.$0$; }", property_name());
+  writer->WriteLine("  set { Set$0$(value); }", property_name());
+  writer->WriteLine("}");
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public Builder Set$0$($1$ value) {", property_name(),
+                    type_name());
+  AddNullCheck(writer);
+  writer->WriteLine("  PrepareBuilder();");
+  writer->WriteLine("  result.has$0$ = true;", property_name());
+  writer->WriteLine("  result.$0$_ = value;", name());
+  writer->WriteLine("  return this;");
+  writer->WriteLine("}");
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public Builder Set$0$($1$.Builder builderForValue) {",
+                    property_name(), type_name());
+  AddNullCheck(writer, "builderForValue");
+  writer->WriteLine("  PrepareBuilder();");
+  writer->WriteLine("  result.has$0$ = true;", property_name());
+  writer->WriteLine("  result.$0$_ = builderForValue.Build();", name());
+  writer->WriteLine("  return this;");
+  writer->WriteLine("}");
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public Builder Merge$0$($1$ value) {", property_name(),
+                    type_name());
+  AddNullCheck(writer);
+  writer->WriteLine("  PrepareBuilder();");
+  writer->WriteLine("  if (result.has$0$ &&", property_name());
+  writer->WriteLine("      result.$0$_ != $1$) {", name(), default_value());
+  writer->WriteLine(
+      "      result.$0$_ = $1$.CreateBuilder(result.$0$_).MergeFrom(value).BuildPartial();",
+      name(), type_name());
+  writer->WriteLine("  } else {");
+  writer->WriteLine("    result.$0$_ = value;", name());
+  writer->WriteLine("  }");
+  writer->WriteLine("  result.has$0$ = true;", property_name());
+  writer->WriteLine("  return this;");
+  writer->WriteLine("}");
+  AddDeprecatedFlag(writer);
+  writer->WriteLine("public Builder Clear$0$() {", property_name());
+  writer->WriteLine("  PrepareBuilder();");
+  writer->WriteLine("  result.has$0$ = false;", property_name());
+  writer->WriteLine("  result.$0$_ = null;", name());
+  writer->WriteLine("  return this;");
+  writer->WriteLine("}");
+}
+
+void MessageFieldGenerator::GenerateMergingCode(Writer* writer) {
+  writer->WriteLine("if (other.Has$0$) {", property_name());
+  writer->WriteLine("  Merge$0$(other.$0$);", property_name());
+  writer->WriteLine("}");
+}
+
+void MessageFieldGenerator::GenerateBuildingCode(Writer* writer) {
+  // Nothing to do for singular fields
+}
+
+void MessageFieldGenerator::GenerateParsingCode(Writer* writer) {
+  writer->WriteLine("$0$.Builder subBuilder = $0$.CreateBuilder();",
+                    type_name());
+  writer->WriteLine("if (result.has$0$) {", property_name());
+  writer->WriteLine("  subBuilder.MergeFrom($0$);", property_name());
+  writer->WriteLine("}");
+
+  if (descriptor_->type() == FieldDescriptor::TYPE_GROUP) {
+    writer->WriteLine("input.ReadGroup($0$, subBuilder, extensionRegistry);",
+                      number());
+  } else {
+    writer->WriteLine("input.ReadMessage(subBuilder, extensionRegistry);");
+  }
+  writer->WriteLine("$0$ = subBuilder.BuildPartial();", property_name());
+}
+
+void MessageFieldGenerator::GenerateSerializationCode(Writer* writer) {
+  writer->WriteLine("if (has$0$) {", property_name());
+  writer->WriteLine("  output.Write$0$($1$, field_names[$3$], $2$);",
+                    message_or_group(), number(), property_name(),
+                    field_ordinal());
+  writer->WriteLine("}");
+}
+
+void MessageFieldGenerator::GenerateSerializedSizeCode(Writer* writer) {
+  writer->WriteLine("if (has$0$) {", property_name());
+  writer->WriteLine("  size += pb::CodedOutputStream.Compute$0$Size($1$, $2$);",
+                    message_or_group(), number(), property_name());
+  writer->WriteLine("}");
+}
+
+void MessageFieldGenerator::WriteHash(Writer* writer) {
+  writer->WriteLine("if (has$0$) hash ^= $1$_.GetHashCode();", property_name(),
+                    name());
+}
+void MessageFieldGenerator::WriteEquals(Writer* writer) {
+  writer->WriteLine(
+      "if (has$0$ != other.has$0$ || (has$0$ && !$1$_.Equals(other.$1$_))) return false;",
+      property_name(), name());
+}
+void MessageFieldGenerator::WriteToString(Writer* writer) {
+  writer->WriteLine("PrintField(\"$2$\", has$0$, $1$_, writer);",
+                    property_name(), name(), GetFieldName(descriptor_));
+}
+
+}  // namespace csharp
+}  // namespace compiler
+}  // namespace protobuf
+}  // namespace google