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Support for Golang GRPC (Experimental) (#4082)

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* support for grpc golang

* refactored grpc go generator

* added grpc-go test and refactored

* refactored idl_gen_grpc.cpp

* fixed grpc generate method name

* refactored flatc and fixed line length issue

* added codec to go lib and fixed formatting issues

* fixed spacing issues
This commit is contained in:
Ronak Jain
2016-12-06 02:50:38 +05:30
committed by Wouter van Oortmerssen
parent bc2ec7119b
commit a31ddd2bb3
10 changed files with 819 additions and 11 deletions
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30
src/flatc.cpp
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@@ -33,6 +33,9 @@ struct Generator {
const char *generator_opt_short;
const char *generator_opt_long;
const char *lang_name;
bool (*generateGRPC)(const flatbuffers::Parser &parser,
const std::string &path,
const std::string &file_name);
flatbuffers::IDLOptions::Language lang;
const char *generator_help;
@@ -43,45 +46,50 @@ struct Generator {
const Generator generators[] = {
{ flatbuffers::GenerateBinary, "-b", "--binary", "binary",
nullptr,
flatbuffers::IDLOptions::kMAX,
"Generate wire format binaries for any data definitions",
flatbuffers::BinaryMakeRule },
{ flatbuffers::GenerateTextFile, "-t", "--json", "text",
nullptr,
flatbuffers::IDLOptions::kMAX,
"Generate text output for any data definitions",
flatbuffers::TextMakeRule },
{ flatbuffers::GenerateCPP, "-c", "--cpp", "C++",
flatbuffers::GenerateCppGRPC,
flatbuffers::IDLOptions::kMAX,
"Generate C++ headers for tables/structs",
flatbuffers::CPPMakeRule },
{ flatbuffers::GenerateGo, "-g", "--go", "Go",
flatbuffers::GenerateGoGRPC,
flatbuffers::IDLOptions::kGo,
"Generate Go files for tables/structs",
flatbuffers::GeneralMakeRule },
{ flatbuffers::GenerateGeneral, "-j", "--java", "Java",
nullptr,
flatbuffers::IDLOptions::kJava,
"Generate Java classes for tables/structs",
flatbuffers::GeneralMakeRule },
{ flatbuffers::GenerateJS, "-s", "--js", "JavaScript",
nullptr,
flatbuffers::IDLOptions::kMAX,
"Generate JavaScript code for tables/structs",
flatbuffers::JSMakeRule },
{ flatbuffers::GenerateGeneral, "-n", "--csharp", "C#",
nullptr,
flatbuffers::IDLOptions::kCSharp,
"Generate C# classes for tables/structs",
flatbuffers::GeneralMakeRule },
{ flatbuffers::GeneratePython, "-p", "--python", "Python",
nullptr,
flatbuffers::IDLOptions::kMAX,
"Generate Python files for tables/structs",
flatbuffers::GeneralMakeRule },
{ flatbuffers::GeneratePhp, nullptr, "--php", "PHP",
nullptr,
flatbuffers::IDLOptions::kMAX,
"Generate PHP files for tables/structs",
flatbuffers::GeneralMakeRule },
{ flatbuffers::GenerateGRPC, nullptr, "--grpc", "GRPC",
flatbuffers::IDLOptions::kMAX,
"Generate GRPC interfaces",
flatbuffers::CPPMakeRule },
};
const char *g_program_name = nullptr;
@@ -170,6 +178,7 @@ int main(int argc, const char *argv[]) {
bool print_make_rules = false;
bool raw_binary = false;
bool schema_binary = false;
bool grpc_enabled = false;
std::vector<std::string> filenames;
std::vector<const char *> include_directories;
std::vector<const char *> conform_include_directories;
@@ -243,6 +252,8 @@ int main(int argc, const char *argv[]) {
} else if(arg == "--version") {
printf("flatc version %s\n", FLATC_VERSION);
exit(0);
} else if(arg == "--grpc") {
grpc_enabled = true;
} else {
for (size_t i = 0; i < num_generators; ++i) {
if (arg == generators[i].generator_opt_long ||
@@ -360,6 +371,17 @@ int main(int argc, const char *argv[]) {
printf("%s\n", flatbuffers::WordWrap(
make_rule, 80, " ", " \\").c_str());
}
if (grpc_enabled) {
if (generators[i].generateGRPC != nullptr) {
if (!generators[i].generateGRPC(*g_parser, output_path, filebase)) {
Error(std::string("Unable to generate GRPC interface for") +
generators[i].lang_name);
}
} else {
Error(std::string("GRPC interface generator not implemented for ") +
generators[i].lang_name);
}
}
}
}