57 lines
1.2 KiB
Rust
57 lines
1.2 KiB
Rust
use std::{rc::Rc, error::Error, fmt};
|
|
|
|
pub mod token;
|
|
pub mod expr;
|
|
pub mod lexer;
|
|
pub mod parser;
|
|
pub mod value;
|
|
pub mod eval;
|
|
pub mod interpreter;
|
|
pub mod stdlib;
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub struct Position {
|
|
pub pos: usize,
|
|
pub line: usize,
|
|
pub col: usize,
|
|
pub file: Option<Rc<str>>
|
|
}
|
|
|
|
|
|
#[derive(Debug)]
|
|
pub struct ParserError {
|
|
pub message: String,
|
|
pub pos: Position
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub struct RuntimeError {
|
|
pub message: String,
|
|
pub pos: Position
|
|
}
|
|
|
|
impl fmt::Display for ParserError {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
write!(f, "Error: {}\n In {} at {},{}",
|
|
self.message,
|
|
self.pos.file.as_ref().map(|o| o.as_ref()).unwrap_or("<unknown>"),
|
|
self.pos.line,
|
|
self.pos.col
|
|
)
|
|
}
|
|
}
|
|
|
|
impl fmt::Display for RuntimeError {
|
|
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
|
write!(f, "Error: {}\n In {} at {},{}",
|
|
self.message,
|
|
self.pos.file.as_ref().map(|o| o.as_ref()).unwrap_or("<unknown>"),
|
|
self.pos.line,
|
|
self.pos.col
|
|
)
|
|
}
|
|
}
|
|
|
|
impl Error for ParserError {}
|
|
impl Error for RuntimeError {}
|