rust/crates/rust-analyzer/src/cli.rs

103 lines
2.5 KiB
Rust

//! Various batch processing tasks, intended primarily for debugging.
pub mod load_cargo;
mod analysis_stats;
mod diagnostics;
mod progress_report;
mod ssr;
use std::io::Read;
use anyhow::Result;
use ide::{Analysis, AnalysisHost};
use syntax::{AstNode, SourceFile};
use vfs::Vfs;
pub use self::{
analysis_stats::AnalysisStatsCmd,
diagnostics::diagnostics,
ssr::{apply_ssr_rules, search_for_patterns},
};
#[derive(Clone, Copy)]
pub enum Verbosity {
Spammy,
Verbose,
Normal,
Quiet,
}
impl Verbosity {
pub fn is_verbose(self) -> bool {
matches!(self, Verbosity::Verbose | Verbosity::Spammy)
}
pub fn is_spammy(self) -> bool {
matches!(self, Verbosity::Spammy)
}
}
pub fn parse(no_dump: bool) -> Result<()> {
let _p = profile::span("parsing");
let file = file()?;
if !no_dump {
println!("{:#?}", file.syntax());
}
std::mem::forget(file);
Ok(())
}
pub fn symbols() -> Result<()> {
let text = read_stdin()?;
let (analysis, file_id) = Analysis::from_single_file(text);
let structure = analysis.file_structure(file_id).unwrap();
for s in structure {
println!("{:?}", s);
}
Ok(())
}
pub fn highlight(rainbow: bool) -> Result<()> {
let (analysis, file_id) = Analysis::from_single_file(read_stdin()?);
let html = analysis.highlight_as_html(file_id, rainbow).unwrap();
println!("{}", html);
Ok(())
}
fn file() -> Result<SourceFile> {
let text = read_stdin()?;
Ok(SourceFile::parse(&text).tree())
}
fn read_stdin() -> Result<String> {
let mut buff = String::new();
std::io::stdin().read_to_string(&mut buff)?;
Ok(buff)
}
fn report_metric(metric: &str, value: u64, unit: &str) {
if std::env::var("RA_METRICS").is_err() {
return;
}
println!("METRIC:{}:{}:{}", metric, value, unit)
}
fn print_memory_usage(mut host: AnalysisHost, vfs: Vfs) {
let mut mem = host.per_query_memory_usage();
let before = profile::memory_usage();
drop(vfs);
let vfs = before.allocated - profile::memory_usage().allocated;
mem.push(("VFS".into(), vfs));
let before = profile::memory_usage();
drop(host);
mem.push(("Unaccounted".into(), before.allocated - profile::memory_usage().allocated));
mem.push(("Remaining".into(), profile::memory_usage().allocated));
for (name, bytes) in mem {
// NOTE: Not a debug print, so avoid going through the `eprintln` defined above.
eprintln!("{:>8} {}", bytes, name);
}
}