pipa/lang/
error.rs

1// SPDX-FileCopyrightText: Copyright 2026 olav@occy.org
2// SPDX-License-Identifier: MPL-2.0
3
4//! Errors related to lexing, parsing, and evaluation. No panics.
5
6use crate::value::span::Span;
7
8#[derive(Debug, PartialEq)]
9pub struct Error {
10    pub kind: ErrorKind,
11    pub source: Option<String>,
12    pub span: Span,
13    pub message: String,
14}
15
16impl core::error::Error for Error {}
17
18impl core::fmt::Display for Error {
19    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
20        write!(f, "{self:?}")
21    }
22}
23
24#[derive(Debug, PartialEq)]
25#[non_exhaustive]
26pub enum ErrorKind {
27    Lex,
28    Parse,
29    Eval,
30    Flag,
31    Func,
32    String,
33    Template,
34}
35
36impl core::fmt::Display for ErrorKind {
37    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
38        f.write_str(&format!("{self:?}").to_lowercase())
39    }
40}
41
42impl From<Error> for Span {
43    fn from(value: Error) -> Self {
44        value.span
45    }
46}
pipa/lang/error.rs

pipa/lang/
error.rs
