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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.
#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_enum.h>
#include <google/protobuf/compiler/csharp/csharp_helpers.h>
#include <google/protobuf/compiler/csharp/csharp_message.h>
#include <google/protobuf/compiler/csharp/csharp_names.h>
#include <google/protobuf/compiler/csharp/csharp_umbrella_class.h>
namespace google {
namespace protobuf {
namespace compiler {
namespace csharp {
UmbrellaClassGenerator::UmbrellaClassGenerator(const FileDescriptor* file)
: SourceGeneratorBase(file),
file_(file) {
namespace_ = GetFileNamespace(file);
umbrellaClassname_ = GetUmbrellaClassUnqualifiedName(file);
umbrellaNamespace_ = GetUmbrellaClassNestedNamespace(file);
}
UmbrellaClassGenerator::~UmbrellaClassGenerator() {
}
void UmbrellaClassGenerator::Generate(io::Printer* printer) {
WriteIntroduction(printer);
WriteDescriptor(printer);
// Close the class declaration.
printer->Outdent();
printer->Print("}\n");
// Close the namespace around the umbrella class if defined
if (!umbrellaNamespace_.empty()) {
printer->Outdent();
printer->Print("}\n");
}
// write children: Enums
if (file_->enum_type_count() > 0) {
printer->Print("#region Enums\n");
for (int i = 0; i < file_->enum_type_count(); i++) {
EnumGenerator enumGenerator(file_->enum_type(i));
enumGenerator.Generate(printer);
}
printer->Print("#endregion\n");
printer->Print("\n");
}
// write children: Messages
if (file_->message_type_count() > 0) {
printer->Print("#region Messages\n");
for (int i = 0; i < file_->message_type_count(); i++) {
MessageGenerator messageGenerator(file_->message_type(i));
messageGenerator.Generate(printer);
}
printer->Print("#endregion\n");
printer->Print("\n");
}
// TODO(jtattermusch): add insertion point for services.
if (!namespace_.empty()) {
printer->Outdent();
printer->Print("}\n");
}
printer->Print("\n");
printer->Print("#endregion Designer generated code\n");
}
void UmbrellaClassGenerator::WriteIntroduction(io::Printer* printer) {
printer->Print(
"// Generated by the protocol buffer compiler. DO NOT EDIT!\n"
"// source: $file_name$\n"
"#pragma warning disable 1591, 0612, 3021\n"
"#region Designer generated code\n"
"\n"
"using pb = global::Google.Protobuf;\n"
"using pbc = global::Google.Protobuf.Collections;\n"
"using pbr = global::Google.Protobuf.Reflection;\n"
"using scg = global::System.Collections.Generic;\n",
"file_name", file_->name());
if (!namespace_.empty()) {
printer->Print("namespace $namespace$ {\n", "namespace", namespace_);
printer->Indent();
printer->Print("\n");
}
// Add the namespace around the umbrella class if defined
if (!umbrellaNamespace_.empty()) {
printer->Print("namespace $umbrella_namespace$ {\n",
"umbrella_namespace", umbrellaNamespace_);
printer->Indent();
printer->Print("\n");
}
printer->Print(
"/// <summary>Holder for reflection information generated from $file_name$</summary>\n"
"[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]\n",
"file_name", file_->name());
WriteGeneratedCodeAttributes(printer);
printer->Print(
"$access_level$ static partial class $umbrella_class_name$ {\n"
"\n",
"access_level", class_access_level(),
"umbrella_class_name", umbrellaClassname_);
printer->Indent();
}
void UmbrellaClassGenerator::WriteDescriptor(io::Printer* printer) {
printer->Print(
"#region Descriptor\n"
"/// <summary>File descriptor for $file_name$</summary>\n"
"public static pbr::FileDescriptor Descriptor {\n"
" get { return descriptor; }\n"
"}\n"
"private static pbr::FileDescriptor descriptor;\n"
"\n"
"static $umbrella_class_name$() {\n",
"file_name", file_->name(),
"umbrella_class_name", umbrellaClassname_);
printer->Indent();
printer->Print(
"byte[] descriptorData = global::System.Convert.FromBase64String(\n");
printer->Indent();
printer->Indent();
printer->Print("string.Concat(\n");
printer->Indent();
// TODO(jonskeet): Consider a C#-escaping format here instead of just Base64.
std::string base64 = FileDescriptorToBase64(file_);
while (base64.size() > 60) {
printer->Print("\"$base64$\",\n", "base64", base64.substr(0, 60));
base64 = base64.substr(60);
}
printer->Print("\"$base64$\"));\n", "base64", base64);
printer->Outdent();
printer->Outdent();
printer->Outdent();
// -----------------------------------------------------------------
// Invoke InternalBuildGeneratedFileFrom() to build the file.
printer->Print(
"descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,\n");
printer->Print(" new pbr::FileDescriptor[] { ");
for (int i = 0; i < file_->dependency_count(); i++) {
// descriptor.proto is special: we don't allow access to the generated code, but there's
// a separately-exposed property to get at the file descriptor, specifically to allow this
// kind of dependency.
if (IsDescriptorProto(file_->dependency(i))) {
printer->Print("pbr::FileDescriptor.DescriptorProtoFileDescriptor, ");
} else {
printer->Print(
"$full_umbrella_class_name$.Descriptor, ",
"full_umbrella_class_name",
GetUmbrellaClassName(file_->dependency(i)));
}
}
printer->Print("},\n"
" new pbr::GeneratedCodeInfo(");
// Specify all the generated code information, recursively.
if (file_->enum_type_count() > 0) {
printer->Print("new[] {");
for (int i = 0; i < file_->enum_type_count(); i++) {
printer->Print("typeof($type_name$), ", "type_name", GetClassName(file_->enum_type(i)));
}
printer->Print("}, ");
}
else {
printer->Print("null, ");
}
if (file_->message_type_count() > 0) {
printer->Print("new pbr::GeneratedCodeInfo[] {\n");
printer->Indent();
printer->Indent();
printer->Indent();
for (int i = 0; i < file_->message_type_count(); i++) {
WriteGeneratedCodeInfo(file_->message_type(i), printer, i == file_->message_type_count() - 1);
}
printer->Outdent();
printer->Print("\n}));\n");
printer->Outdent();
printer->Outdent();
}
else {
printer->Print("null));\n");
}
printer->Outdent();
printer->Print("}\n");
printer->Print("#endregion\n\n");
}
// Write out the generated code for a particular message. This consists of the CLR type, property names
// corresponding to fields, names corresponding to oneofs, nested enums, and nested types. Each array part
// can be specified as null if it would be empty, to make the generated code somewhat simpler to read.
// We write a line break at the end of each generated code info, so that in the final file we'll see all
// the types, pre-ordered depth first, one per line. The indentation will be slightly unusual,
// in that it will look like a single array when it's actually constructing a tree, but it'll be easy to
// read even with multiple levels of nesting.
// The "last" parameter indicates whether this message descriptor is the last one being printed in this immediate
// context. It governs whether or not a trailing comma and newline is written after the constructor, effectively
// just controlling the formatting in the generated code.
void UmbrellaClassGenerator::WriteGeneratedCodeInfo(const Descriptor* descriptor, io::Printer* printer, bool last) {
if (IsMapEntryMessage(descriptor)) {
printer->Print("null, ");
return;
}
// Generated message type
printer->Print("new pbr::GeneratedCodeInfo(typeof($type_name$), ", "type_name", GetClassName(descriptor));
// Fields
if (descriptor->field_count() > 0) {
std::vector<std::string> fields;
for (int i = 0; i < descriptor->field_count(); i++) {
fields.push_back(GetPropertyName(descriptor->field(i)));
}
printer->Print("new[]{ \"$fields$\" }, ", "fields", JoinStrings(fields, "\", \""));
}
else {
printer->Print("null, ");
}
// Oneofs
if (descriptor->oneof_decl_count() > 0) {
std::vector<std::string> oneofs;
for (int i = 0; i < descriptor->oneof_decl_count(); i++) {
oneofs.push_back(UnderscoresToCamelCase(descriptor->oneof_decl(i)->name(), true));
}
printer->Print("new[]{ \"$oneofs$\" }, ", "oneofs", JoinStrings(oneofs, "\", \""));
}
else {
printer->Print("null, ");
}
// Nested enums
if (descriptor->enum_type_count() > 0) {
std::vector<std::string> enums;
for (int i = 0; i < descriptor->enum_type_count(); i++) {
enums.push_back(GetClassName(descriptor->enum_type(i)));
}
printer->Print("new[]{ typeof($enums$) }, ", "enums", JoinStrings(enums, "), typeof("));
}
else {
printer->Print("null, ");
}
// Nested types
if (descriptor->nested_type_count() > 0) {
// Need to specify array type explicitly here, as all elements may be null.
printer->Print("new pbr::GeneratedCodeInfo[] { ");
for (int i = 0; i < descriptor->nested_type_count(); i++) {
WriteGeneratedCodeInfo(descriptor->nested_type(i), printer, i == descriptor->nested_type_count() - 1);
}
printer->Print("}");
}
else {
printer->Print("null");
}
printer->Print(last ? ")" : "),\n");
}
} // namespace csharp
} // namespace compiler
} // namespace protobuf
} // namespace google
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