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mod analysis_stats;
use std::{fs, io::Read, path::Path, time::Instant};
use clap::{App, Arg, SubCommand};
use join_to_string::join;
use ra_ide_api::{Analysis, FileRange};
use ra_ide_api_light::file_structure;
use ra_syntax::{SourceFile, TextRange, TreeArc, AstNode};
use tools::collect_tests;
use flexi_logger::Logger;
type Result<T> = ::std::result::Result<T, failure::Error>;
fn main() -> Result<()> {
Logger::with_env().start()?;
let matches = App::new("ra-cli")
.setting(clap::AppSettings::SubcommandRequiredElseHelp)
.subcommand(
SubCommand::with_name("render-test")
.arg(Arg::with_name("line").long("--line").required(true).takes_value(true))
.arg(Arg::with_name("file").long("--file").required(true).takes_value(true)),
)
.subcommand(SubCommand::with_name("parse").arg(Arg::with_name("no-dump").long("--no-dump")))
.subcommand(SubCommand::with_name("symbols"))
.subcommand(
SubCommand::with_name("extend-selection")
.arg(Arg::with_name("start"))
.arg(Arg::with_name("end")),
)
.subcommand(
SubCommand::with_name("analysis-stats").arg(Arg::with_name("verbose").short("v")),
)
.get_matches();
match matches.subcommand() {
("parse", Some(matches)) => {
let start = Instant::now();
let file = file()?;
let elapsed = start.elapsed();
if !matches.is_present("no-dump") {
println!("{}", file.syntax().debug_dump());
}
eprintln!("parsing: {:?}", elapsed);
::std::mem::forget(file);
}
("symbols", _) => {
let file = file()?;
for s in file_structure(&file) {
println!("{:?}", s);
}
}
("render-test", Some(matches)) => {
let file = matches.value_of("file").unwrap();
let file = Path::new(file);
let line: usize = matches.value_of("line").unwrap().parse()?;
let line = line - 1;
let (test, tree) = render_test(file, line)?;
println!("{}\n{}", test, tree);
}
("extend-selection", Some(matches)) => {
let start: u32 = matches.value_of("start").unwrap().parse()?;
let end: u32 = matches.value_of("end").unwrap().parse()?;
let text = read_stdin()?;
let sels = selections(text, start, end);
println!("{}", sels)
}
("analysis-stats", Some(matches)) => {
let verbose = matches.is_present("verbose");
analysis_stats::run(verbose)?;
}
_ => unreachable!(),
}
Ok(())
}
fn file() -> Result<TreeArc<SourceFile>> {
let text = read_stdin()?;
Ok(SourceFile::parse(&text))
}
fn read_stdin() -> Result<String> {
let mut buff = String::new();
::std::io::stdin().read_to_string(&mut buff)?;
Ok(buff)
}
fn render_test(file: &Path, line: usize) -> Result<(String, String)> {
let text = fs::read_to_string(file)?;
let tests = collect_tests(&text);
let test = tests.into_iter().find(|(start_line, t)| {
*start_line <= line && line <= *start_line + t.text.lines().count()
});
let test = match test {
None => failure::bail!("No test found at line {} at {}", line, file.display()),
Some((_start_line, test)) => test,
};
let file = SourceFile::parse(&test.text);
let tree = file.syntax().debug_dump();
Ok((test.text, tree))
}
fn selections(text: String, start: u32, end: u32) -> String {
let (analysis, file_id) = Analysis::from_single_file(text);
let mut ranges = Vec::new();
let mut range = TextRange::from_to((start - 1).into(), (end - 1).into());
loop {
ranges.push(range);
let next = analysis.extend_selection(FileRange { file_id, range }).unwrap();
if range == next {
break;
}
range = next;
}
let ranges = ranges
.iter()
.map(|r| (1 + u32::from(r.start()), 1 + u32::from(r.end())))
.map(|(s, e)| format!("({} {})", s, e));
join(ranges).separator(" ").surround_with("(", ")").to_string()
}
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