junolsp 0.1.8

Language Server for JunoLang
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use std::io::{Error, ErrorKind};

use tower_lsp::lsp_types::{CompletionItem, CompletionParams, MessageType};

use crate::backend::Backend;
use libjuno::{pest::Parser, *};
use libjuno::ast::*;



pub(super) fn get_program(
    backend: &Backend,
    params: CompletionParams) -> Result<Program, Error>{
    
    let document = backend.workspace.source(&params.text_document_position.text_document.uri).unwrap();
    let pairs = match JunoParser::parse(Rule::program, &document) {
        Ok(pairs) => pairs,
        Err(e) => {
            backend.client.log_message(MessageType::ERROR, format!("{}", e));
            return Err(Error::new(ErrorKind::Other, "oh no!"));
        }
    };
    let expr_owned = match parse_program(pairs.into_iter().next().unwrap()) {
        Ok(e) => e,
        Err(e) => {
            backend.client.log_message(MessageType::ERROR, format!("{}", e));
            return Err(Error::new(ErrorKind::Other, "oh no!"));
        }
    };
    Ok(expr_owned)
}