rust-analyzer/crates/syntax/src/syntax_error.rs
2022-07-20 15:02:08 +02:00

44 lines
1.3 KiB
Rust

//! See docs for `SyntaxError`.
use std::fmt;
use crate::{TextRange, TextSize};
/// Represents the result of unsuccessful tokenization, parsing
/// or tree validation.
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct SyntaxError(String, TextRange);
// FIXME: there was an unused SyntaxErrorKind previously (before this enum was removed)
// It was introduced in this PR: https://github.com/rust-lang/rust-analyzer/pull/846/files#diff-827da9b03b8f9faa1bade5cdd44d5dafR95
// but it was not removed by a mistake.
//
// So, we need to find a place where to stick validation for attributes in match clauses.
// Code before refactor:
// InvalidMatchInnerAttr => {
// write!(f, "Inner attributes are only allowed directly after the opening brace of the match expression")
// }
impl SyntaxError {
pub fn new(message: impl Into<String>, range: TextRange) -> Self {
Self(message.into(), range)
}
pub fn new_at_offset(message: impl Into<String>, offset: TextSize) -> Self {
Self(message.into(), TextRange::empty(offset))
}
pub fn range(&self) -> TextRange {
self.1
}
pub fn with_range(mut self, range: TextRange) -> Self {
self.1 = range;
self
}
}
impl fmt::Display for SyntaxError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.0.fmt(f)
}
}