Lines
58.33 %
Functions
20 %
// Basic syntactic error detection helpers for the LSP API.
use crate::diagnostics::diagnostics_api::{Diagnostic, Position, Range, Severity};
use crate::parse_essence_with_context;
use conjure_cp_core::context::Context;
use std::sync::{Arc, RwLock};
/// Detects very simple semantic issues in source and returns a vector
/// of Diagnostics.
pub fn detect_semantic_errors(source: &str) -> Vec<Diagnostic> {
let mut diagnostics = Vec::new();
let context = Arc::new(RwLock::new(Context::default()));
match parse_essence_with_context(source, context) {
Ok(_model) => {
// no errors, all good
}
Err(err) => {
diagnostics.push(error_to_diagnostic(&err));
diagnostics
pub fn error_to_diagnostic(err: &crate::errors::EssenceParseError) -> Diagnostic {
match err {
crate::EssenceParseError::SyntaxError { msg, range } => {
let (start, end) = range_to_position(range);
Diagnostic {
range: Range { start, end },
severity: Severity::Error,
source: "semantic error detection",
message: format!("Semantic Error: {}", msg),
_ => Diagnostic {
range: Range {
start: Position {
line: 0,
character: 0,
},
end: Position {
character: 1,
message: format!("{}", err),
fn range_to_position(range: &Option<tree_sitter::Range>) -> (Position, Position) {
match range {
Some(r) => (
Position {
line: r.start_point.row as u32,
character: r.start_point.column as u32,
line: r.end_point.row as u32,
character: r.end_point.column as u32,
),
None => (