diff options
Diffstat (limited to 'src/compiler/php_generator.cc')
| -rw-r--r-- | src/compiler/php_generator.cc | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/compiler/php_generator.cc b/src/compiler/php_generator.cc new file mode 100644 index 0000000000..5dac02cec4 --- /dev/null +++ b/src/compiler/php_generator.cc @@ -0,0 +1,174 @@ +/* + * + * Copyright 2016, 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. + * + */ + +#include <map> + +#include "src/compiler/config.h" +#include "src/compiler/generator_helpers.h" +#include "src/compiler/php_generator_helpers.h" + +using grpc::protobuf::FileDescriptor; +using grpc::protobuf::ServiceDescriptor; +using grpc::protobuf::MethodDescriptor; +using grpc::protobuf::Descriptor; +using grpc::protobuf::io::Printer; +using grpc::protobuf::io::StringOutputStream; +using std::map; + +namespace grpc_php_generator { +namespace { + +grpc::string MessageIdentifierName(const grpc::string &name) { + std::vector<grpc::string> tokens = grpc_generator::tokenize(name, "."); + std::ostringstream oss; + for (unsigned int i = 0; i < tokens.size(); i++) { + oss << (i == 0 ? "" : "\\") + << grpc_generator::CapitalizeFirstLetter(tokens[i]); + } + return oss.str(); +} + +void PrintMethod(const MethodDescriptor *method, Printer *out) { + const Descriptor *input_type = method->input_type(); + const Descriptor *output_type = method->output_type(); + map<grpc::string, grpc::string> vars; + vars["service_name"] = method->service()->full_name(); + vars["name"] = method->name(); + vars["input_type_id"] = MessageIdentifierName(input_type->full_name()); + vars["output_type_id"] = MessageIdentifierName(output_type->full_name()); + + out->Print("/**\n"); + out->Print(GetPHPComments(method, " *").c_str()); + if (method->client_streaming()) { + out->Print(vars, + " * @param array $$metadata metadata\n" + " * @param array $$options call options\n */\n" + "public function $name$($$metadata = [], " + "$$options = []) {\n"); + out->Indent(); + if (method->server_streaming()) { + out->Print("return $$this->_bidiRequest("); + } else { + out->Print("return $$this->_clientStreamRequest("); + } + out->Print(vars, + "'/$service_name$/$name$',\n" + "['\\$output_type_id$','decode'],\n" + "$$metadata, $$options);\n"); + } else { + out->Print(vars, + " * @param \\$input_type_id$ $$argument input argument\n" + " * @param array $$metadata metadata\n" + " * @param array $$options call options\n */\n" + "public function $name$(\\$input_type_id$ $$argument,\n" + " $$metadata = [], $$options = []) {\n"); + out->Indent(); + if (method->server_streaming()) { + out->Print("return $$this->_serverStreamRequest("); + } else { + out->Print("return $$this->_simpleRequest("); + } + out->Print(vars, + "'/$service_name$/$name$',\n" + "$$argument,\n" + "['\\$output_type_id$', 'decode'],\n" + "$$metadata, $$options);\n"); + } + out->Outdent(); + out->Print("}\n\n"); +} + +// Prints out the service descriptor object +void PrintService(const ServiceDescriptor *service, Printer *out) { + map<grpc::string, grpc::string> vars; + out->Print(GetPHPComments(service, "//").c_str()); + vars["name"] = service->name(); + out->Print(vars, "class $name$Client extends \\Grpc\\BaseStub {\n\n"); + out->Indent(); + out->Print( + "/**\n * @param string $$hostname hostname\n" + " * @param array $$opts channel options\n" + " * @param Grpc\\Channel $$channel (optional) re-use channel " + "object\n */\n" + "public function __construct($$hostname, $$opts, " + "$$channel = null) {\n"); + out->Indent(); + out->Print("parent::__construct($$hostname, $$opts, $$channel);\n"); + out->Outdent(); + out->Print("}\n\n"); + for (int i = 0; i < service->method_count(); i++) { + grpc::string method_name = + grpc_generator::LowercaseFirstLetter(service->method(i)->name()); + PrintMethod(service->method(i), out); + } + out->Outdent(); + out->Print("}\n\n"); +} + +void PrintServices(const FileDescriptor *file, Printer *out) { + map<grpc::string, grpc::string> vars; + vars["package"] = MessageIdentifierName(file->package()); + out->Print(vars, "namespace $package$ {\n\n"); + out->Indent(); + for (int i = 0; i < file->service_count(); i++) { + PrintService(file->service(i), out); + } + out->Outdent(); + out->Print("}\n"); +} +} + +grpc::string GenerateFile(const FileDescriptor *file) { + grpc::string output; + { + StringOutputStream output_stream(&output); + Printer out(&output_stream, '$'); + + if (file->service_count() == 0) { + return output; + } + out.Print("<?php\n"); + out.Print("// GENERATED CODE -- DO NOT EDIT!\n\n"); + + grpc::string leading_comments = GetPHPComments(file, "//"); + if (!leading_comments.empty()) { + out.Print("// Original file comments:\n"); + out.Print(leading_comments.c_str()); + } + + PrintServices(file, &out); + } + return output; +} + +} // namespace grpc_php_generator |