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#![allow(unused)]
use std::{ffi::OsString, path::PathBuf};
#[derive(Debug)]
pub struct RustAnalyzer {
pub workspace: PathBuf,
pub jobs: Option<u32>,
pub log_file: Option<PathBuf>,
pub verbose: u32,
pub number: u32,
pub data: Vec<OsString>,
pub emoji: bool,
}
impl RustAnalyzer {
#[allow(dead_code)]
pub fn from_env_or_exit() -> Self {
Self::from_env_or_exit_()
}
#[allow(dead_code)]
pub fn from_env() -> xflags::Result<Self> {
Self::from_env_()
}
#[allow(dead_code)]
pub fn from_vec(args: Vec<std::ffi::OsString>) -> xflags::Result<Self> {
Self::from_vec_(args)
}
}
impl RustAnalyzer {
fn from_env_or_exit_() -> Self {
Self::from_env_().unwrap_or_else(|err| err.exit())
}
fn from_env_() -> xflags::Result<Self> {
let mut p = xflags::rt::Parser::new_from_env();
Self::parse_(&mut p)
}
fn from_vec_(args: Vec<std::ffi::OsString>) -> xflags::Result<Self> {
let mut p = xflags::rt::Parser::new(args);
Self::parse_(&mut p)
}
}
impl RustAnalyzer {
fn parse_(p_: &mut xflags::rt::Parser) -> xflags::Result<Self> {
#![allow(non_snake_case)]
let mut log_file = Vec::new();
let mut verbose = Vec::new();
let mut number = Vec::new();
let mut data = Vec::new();
let mut emoji = Vec::new();
let mut workspace = (false, Vec::new());
let mut jobs = (false, Vec::new());
let mut state_ = 0u8;
while let Some(arg_) = p_.pop_flag() {
match arg_ {
Ok(flag_) => match (state_, flag_.as_str()) {
(0, "--log-file") => log_file.push(p_.next_value(&flag_)?.into()),
(0, "--verbose" | "-v") => verbose.push(()),
(0, "--number" | "-n") => number.push(p_.next_value_from_str::<u32>(&flag_)?),
(0, "--data") => data.push(p_.next_value(&flag_)?.into()),
(0, "--emoji") => emoji.push(()),
(0, "--help" | "-h") => return Err(p_.help(Self::HELP_)),
_ => return Err(p_.unexpected_flag(&flag_)),
},
Err(arg_) => match (state_, arg_.to_str().unwrap_or("")) {
(0, _) => {
if let (done_ @ false, buf_) = &mut workspace {
buf_.push(arg_.into());
*done_ = true;
continue;
}
if let (done_ @ false, buf_) = &mut jobs {
buf_.push(p_.value_from_str::<u32>("jobs", arg_)?);
*done_ = true;
continue;
}
return Err(p_.unexpected_arg(arg_));
}
_ => return Err(p_.unexpected_arg(arg_)),
},
}
}
Ok(RustAnalyzer {
log_file: p_.optional("--log-file", log_file)?,
verbose: verbose.len() as u32,
number: p_.required("--number", number)?,
data: data,
emoji: p_.optional("--emoji", emoji)?.is_some(),
workspace: p_.required("workspace", workspace.1)?,
jobs: p_.optional("jobs", jobs.1)?,
})
}
}
impl RustAnalyzer {
const HELP_: &'static str = "\
rust-analyzer
LSP server for rust.
ARGS:
<workspace>
[jobs]
Number of concurrent jobs.
OPTIONS:
--log-file <path>
Path to log file. By default, logs go to stderr.
-v, --verbose
-n, --number <n>
--data <value>
--emoji
-h, --help
Prints help information.
";
}
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