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#![doc(hidden)]
use plugin::*;
use protobuf::descriptor::FileDescriptorProto;
use protobuf::parse_from_reader;
use protobuf::Message;
use std::io::stdin;
use std::io::stdout;
use std::str;
pub struct GenRequest<'a> {
pub file_descriptors: &'a [FileDescriptorProto],
pub files_to_generate: &'a [String],
pub parameter: &'a str,
}
pub struct GenResult {
pub name: String,
pub content: Vec<u8>,
}
pub fn plugin_main<F>(gen: F)
where
F: Fn(&[FileDescriptorProto], &[String]) -> Vec<GenResult>,
{
plugin_main_2(|r| gen(r.file_descriptors, r.files_to_generate))
}
pub fn plugin_main_2<F>(gen: F)
where
F: Fn(&GenRequest) -> Vec<GenResult>,
{
let req = parse_from_reader::<CodeGeneratorRequest>(&mut stdin()).unwrap();
let result = gen(&GenRequest {
file_descriptors: &req.get_proto_file(),
files_to_generate: &req.get_file_to_generate(),
parameter: req.get_parameter(),
});
let mut resp = CodeGeneratorResponse::new();
resp.set_file(
result
.iter()
.map(|file| {
let mut r = CodeGeneratorResponse_File::new();
r.set_name(file.name.to_string());
r.set_content(str::from_utf8(file.content.as_ref()).unwrap().to_string());
r
})
.collect(),
);
resp.write_to_writer(&mut stdout()).unwrap();
}