language-servers/rust-analyzer
1
0
Fork 0
mirror of https://github.com/rust-lang/rust-analyzer.git synced 2025-09-19 00:31:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

Make printin the backtrace more convenient

Browse source
This commit is contained in:
Aleksey Kladov 2021-01-14 14:55:13 +03:00
parent dd5b3cd6f0
commit 865e05b5b4
5 changed files with 29 additions and 26 deletions
Download patch file Download diff file Expand all files Collapse all files

29
crates/stdx/src/lib.rs
View file

@ -25,6 +25,27 @@ pub fn timeit(label: &'static str) -> impl Drop {
Guard { label, start: Instant::now() }
}
/// Prints backtrace to stderr, useful for debugging.
#[cfg(feature = "backtrace")]
pub fn print_backtrace() {
let bt = backtrace::Backtrace::new();
eprintln!("{:?}", bt);
}
#[cfg(not(feature = "backtrace"))]
pub fn print_backtrace() {
eprintln!(
r#"Enable the backtrace feature.
Uncomment `default = [ "backtrace" ]` in `crates/stdx/Cargo.toml`.
"#
);
}
pub fn to_lower_snake_case(s: &str) -> String {
to_snake_case(s, char::to_ascii_lowercase)
}
pub fn to_upper_snake_case(s: &str) -> String {
to_snake_case(s, char::to_ascii_uppercase)
}
fn to_snake_case<F: Fn(&char) -> char>(s: &str, change_case: F) -> String {
let mut buf = String::with_capacity(s.len());
let mut prev = false;
@ -43,14 +64,6 @@ fn to_snake_case<F: Fn(&char) -> char>(s: &str, change_case: F) -> String {
buf
}
pub fn to_lower_snake_case(s: &str) -> String {
to_snake_case(s, char::to_ascii_lowercase)
}
pub fn to_upper_snake_case(s: &str) -> String {
to_snake_case(s, char::to_ascii_uppercase)
}
pub fn replace(buf: &mut String, from: char, to: &str) {
if !buf.contains(from) {
return;