36 lines
1.3 KiB
Rust
36 lines
1.3 KiB
Rust
use crate::parser::lexer::{self, LexicalError};
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use eww_shared_util::{Span, Spanned};
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#[derive(thiserror::Error, Debug)]
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#[error("Error parsing expression: {source}")]
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pub struct ParseError {
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pub file_id: usize,
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pub source: lalrpop_util::ParseError<usize, lexer::Token, lexer::LexicalError>,
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}
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impl ParseError {
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pub fn from_parse_error(file_id: usize, err: lalrpop_util::ParseError<usize, lexer::Token, lexer::LexicalError>) -> Self {
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Self { file_id, source: err }
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}
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}
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impl Spanned for ParseError {
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fn span(&self) -> Span {
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match &self.source {
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lalrpop_util::ParseError::InvalidToken { location } => Span(*location, *location, self.file_id),
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lalrpop_util::ParseError::UnrecognizedEOF { location, expected: _ } => Span(*location, *location, self.file_id),
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lalrpop_util::ParseError::UnrecognizedToken { token, expected: _ } => Span(token.0, token.2, self.file_id),
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lalrpop_util::ParseError::ExtraToken { token } => Span(token.0, token.2, self.file_id),
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lalrpop_util::ParseError::User { error: LexicalError(span) } => *span,
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}
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}
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}
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#[macro_export]
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macro_rules! spanned {
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($err:ty, $span:expr, $block:expr) => {{
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let span = $span;
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let result: Result<_, $err> = try { $block };
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result.at(span)
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}};
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}
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