Created Objective C stub code generators

1 files changed, 95 insertions, 0 deletions

diff --git a/src/compiler/objective_c_plugin.cc b/src/compiler/objective_c_plugin.cc
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+++ b/src/compiler/objective_c_plugin.cc
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+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ */
+
+// Generates Objective C gRPC service interface out of Protobuf IDL.
+
+#include <memory>
+
+#include "src/compiler/config.h"
+#include "src/compiler/objective_c_generator.h"
+#include "src/compiler/objective_c_generator_helpers.h"
+
+class ObjectiveCGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator {
+ public:
+  ObjectiveCGrpcGenerator() {}
+  virtual ~ObjectiveCGrpcGenerator() {}
+
+  virtual bool Generate(const grpc::protobuf::FileDescriptor *file,
+                        const grpc::string &parameter,
+                        grpc::protobuf::compiler::GeneratorContext *context,
+                        grpc::string *error) const {
+
+    if (file->service_count() == 0) {
+      // No services.  Do nothing.
+      return true;
+    }
+
+    for (int i = 0; i < file->service_count(); i++) {
+      const grpc::protobuf::ServiceDescriptor *service = file->service(i);
+      grpc::sring file_name = grpc_objective_c_generator::StubFileName(
+          service->name());
+
+      // Generate .pb.h
+      grpc::string header_code = grpc_objective_c_generator::GetHeader(service);
+      std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> header_output(
+        context->Open(file_name + ".pb.h"));
+      grpc::protobuf::io::CodedOutputStream header_coded_out(output.get());
+      header_coded_out.WriteRaw(header_code.data(), header_code.size());
+
+      // Generate .pb.m
+      grpc::string source_code = grpc_objective_c_generator::GetSource(service);
+      std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> source_output(
+        context->Open(file_name + ".pb.m"));
+      grpc::protobuf::io::CodedOutputStream source_coded_out(output.get());
+      source_coded_out.WriteRaw(source_code.data(), source_code.size());
+    }
+
+    return true;
+  }
+
+ private:
+  // Insert the given code into the given file at the given insertion point.
+  void Insert(grpc::protobuf::compiler::GeneratorContext *context,
+              const grpc::string &filename, const grpc::string &insertion_point,
+              const grpc::string &code) const {
+    std::unique_ptr<grpc::protobuf::io::ZeroCopyOutputStream> output(
+        context->OpenForInsert(filename, insertion_point));
+    grpc::protobuf::io::CodedOutputStream coded_out(output.get());
+    coded_out.WriteRaw(code.data(), code.size());
+  }
+};
+
+int main(int argc, char *argv[]) {
+  ObjectiveCGrpcGenerator generator;
+  return grpc::protobuf::compiler::PluginMain(argc, argv, &generator);
+}