use std::io::Write;
pub fn try_format(writer: &super::Writer, tokens: &str) -> String {
let preamble = if writer.package {
String::new()
} else {
let name = std::env!("CARGO_PKG_NAME");
let version = std::env!("CARGO_PKG_VERSION");
format!(
r#"// Bindings generated by `{name}` {version}
"#
)
};
let allow = if writer.package || writer.no_inner_attributes { "" } else { "#![allow(non_snake_case, non_upper_case_globals, non_camel_case_types, dead_code, clippy::all)]\n" };
let tokens = format!("{preamble}{allow}{tokens}");
let Ok(mut child) = std::process::Command::new("rustfmt").stdin(std::process::Stdio::piped()).stdout(std::process::Stdio::piped()).stderr(std::process::Stdio::null()).spawn() else {
return tokens;
};
let Some(mut stdin) = child.stdin.take() else {
return tokens;
};
if stdin.write_all(tokens.as_bytes()).is_err() {
return tokens;
}
drop(stdin);
let Ok(output) = child.wait_with_output() else {
return tokens;
};
if !output.status.success() {
return tokens;
}
if let Ok(result) = String::from_utf8(output.stdout) {
result
} else {
tokens
}
}