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use alloc::{
borrow::Cow,
fmt::{self, Display, Formatter},
};
#[cfg(feature="std")]
use {
alloc::string::ToString,
std::io,
};
#[derive(Debug)]
pub struct Error {
line: u32,
module_path: &'static str,
msg: Option<Cow<'static, str>>,
}
impl Error {
pub (crate) const fn new(line: u32, module_path: &'static str, msg: Option<Cow<'static, str>>) -> Self {
Self {
line,
module_path,
msg,
}
}
pub const fn line(&self) -> u32 {
self.line
}
pub const fn module_path(&self) -> &str {
self.module_path
}
pub fn msg(&self) -> Option<&str> {
self.msg.as_deref()
}
}
impl Display for Error {
fn fmt(&self, f: &mut Formatter) -> Result<(), fmt::Error> {
match self.msg.as_ref() {
Some(msg) => write!(
f, "[{tag}][{module_path}-{line}] {msg}", tag=crate::TAG, line=self.line, module_path=self.module_path, msg=msg,
),
None => write!(f, "[{tag}][{module_path}-{line}]", tag=crate::TAG, line=self.line, module_path=self.module_path),
}
}
}
#[cfg(feature="std")]
impl From<Error> for io::Error {
fn from(err: Error) -> Self {
io::Error::new(io::ErrorKind::Other, err.to_string())
}
}