87 lines
2 KiB
Rust
87 lines
2 KiB
Rust
use std::fmt::Write;
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use std::io;
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use tree_sitter::QueryError;
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#[derive(Debug)]
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pub struct Error(pub Vec<String>);
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pub type Result<T> = std::result::Result<T, Error>;
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impl Error {
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pub fn grammar(message: &str) -> Self {
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Error(vec![format!("Grammar error: {}", message)])
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}
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pub fn regex(message: &str) -> Self {
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Error(vec![format!("Regex error: {}", message)])
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}
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pub fn undefined_symbol(name: &str) -> Self {
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Error(vec![format!("Undefined symbol `{}`", name)])
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}
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pub fn new(message: String) -> Self {
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Error(vec![message])
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}
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pub fn err<T>(message: String) -> Result<T> {
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Err(Error::new(message))
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}
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pub fn wrap<E: Into<Self>, M: ToString, F: FnOnce() -> M>(
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message_fn: F,
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) -> impl FnOnce(E) -> Self {
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|e| {
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let mut result = e.into();
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result.0.push(message_fn().to_string());
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result
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}
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}
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pub fn message(&self) -> String {
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let mut result = self.0.last().unwrap().clone();
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if self.0.len() > 1 {
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result.push_str("\nDetails:\n");
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for msg in self.0[0..self.0.len() - 1].iter().rev() {
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writeln!(&mut result, " {}", msg).unwrap();
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}
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}
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result
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}
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}
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impl<'a> From<QueryError> for Error {
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fn from(error: QueryError) -> Self {
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Error::new(format!("{:?}", error))
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}
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}
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impl<'a> From<tree_sitter_highlight::Error> for Error {
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fn from(error: tree_sitter_highlight::Error) -> Self {
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Error::new(format!("{:?}", error))
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}
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}
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impl From<serde_json::Error> for Error {
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fn from(error: serde_json::Error) -> Self {
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Error::new(error.to_string())
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}
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}
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impl From<io::Error> for Error {
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fn from(error: io::Error) -> Self {
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Error::new(error.to_string())
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}
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}
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impl From<regex_syntax::ast::Error> for Error {
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fn from(error: regex_syntax::ast::Error) -> Self {
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Error::new(error.to_string())
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}
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}
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impl From<String> for Error {
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fn from(error: String) -> Self {
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Error::new(error)
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}
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}
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