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#![allow(dead_code, unused_variables)]
extern crate mpack;
use std::env;
use std::fmt;
use std::io;
use std::process::Command;
pub use self::metadata::Metadata;
pub use self::session::Session;
mod metadata;
mod session;
pub struct Function {
pub name: String,
pub parameters: Vec<(String, String)>,
pub return_type: String,
pub async: bool,
pub can_fail: bool,
}
impl fmt::Display for Function {
fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
write!(fmt, "{name}({params}) -> {return_type} {can_fail}{async}",
return_type=self.return_type,
async=if self.async { "async" } else { "" },
name=self.name,
params=self.parameters.iter().map(|p| format!("{} {}", p.0, p.1)).collect::<Vec<String>>().join(", "),
can_fail=if self.can_fail { "[can fail]" } else { "" },
)
}
}
pub struct ApiInfo {
pub functions: Vec<Function>,
}
pub fn get_api_info() -> Result<ApiInfo, mpack::ReadError> {
let cmd = env::var("NVIM_BIN").unwrap_or(String::from("nvim"));
let output = try!(Command::new(cmd).arg("--api-info").output());
if !output.status.success() {
return Err(mpack::ReadError::Io(match output.status.code() {
Some(code) => io::Error::from_raw_os_error(code),
None => io::Error::new(io::ErrorKind::Other, "killed by signal"),
}))
}
let mut r = mpack::Reader::new(&output.stdout[..]);
let dict = try!(r.read_value()).map().unwrap();
let dict_functions = dict.get_array("functions").unwrap();
let mut functions = Vec::with_capacity(dict_functions.len());
for f in dict_functions {
let f = f.map().unwrap();
let name = f.get_string("name").unwrap();
let parameters = f.get_array("parameters").unwrap().into_iter().map(|p| {
let p = p.array().unwrap();
(p[0].clone().string().unwrap(), p[1].clone().string().unwrap())
}).collect();
let return_type = f.get_string("return_type").unwrap();
let async = f.get_bool("async").unwrap();
let can_fail = f.get_bool("can_fail").unwrap_or(false);
functions.push(Function{
name: name,
parameters: parameters,
return_type: return_type,
async: async,
can_fail: can_fail,
});
}
Ok(ApiInfo{
functions: functions,
})
}