rust/crates/ide_ssr/src/errors.rs
2021-02-23 00:59:16 +05:30

30 lines
884 B
Rust

//! Code relating to errors produced by SSR.
/// Constructs an SsrError taking arguments like the format macro.
macro_rules! _error {
($fmt:expr) => {$crate::SsrError::new(format!($fmt))};
($fmt:expr, $($arg:tt)+) => {$crate::SsrError::new(format!($fmt, $($arg)+))}
}
pub(crate) use _error as error;
/// Returns from the current function with an error, supplied by arguments as for format!
macro_rules! _bail {
($($tokens:tt)*) => {return Err(crate::errors::error!($($tokens)*))}
}
pub(crate) use _bail as bail;
#[derive(Debug, PartialEq)]
pub struct SsrError(pub(crate) String);
impl std::fmt::Display for SsrError {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
write!(f, "Parse error: {}", self.0)
}
}
impl SsrError {
pub(crate) fn new(message: impl Into<String>) -> SsrError {
SsrError(message.into())
}
}