emmylua_ls 0.4.4

A language server for emmylua.
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use std::collections::HashSet;

use emmylua_code_analysis::SemanticModel;
use emmylua_parser::LuaSyntaxToken;
use lsp_types::CompletionItem;
use tokio_util::sync::CancellationToken;

pub struct CompletionBuilder<'a> {
    pub trigger_token: LuaSyntaxToken,
    pub semantic_model: SemanticModel<'a>,
    pub env_duplicate_name: HashSet<String>,
    completion_items: Vec<CompletionItem>,
    cancel_token: CancellationToken,
    stopped: bool,
}

impl<'a> CompletionBuilder<'a> {
    pub fn new(
        trigger_token: LuaSyntaxToken,
        semantic_model: SemanticModel<'a>,
        cancel_token: CancellationToken,
    ) -> Self {
        Self {
            trigger_token,
            semantic_model,
            env_duplicate_name: HashSet::new(),
            completion_items: Vec::new(),
            cancel_token,
            stopped: false,
        }
    }

    pub fn is_cancelled(&self) -> bool {
        self.stopped || self.cancel_token.is_cancelled()
    }

    pub fn add_completion_item(&mut self, item: CompletionItem) -> Option<()> {
        if self.cancel_token.is_cancelled() {
            return None;
        };

        self.completion_items.push(item);
        Some(())
    }

    pub fn get_completion_items(self) -> Vec<CompletionItem> {
        self.completion_items
    }

    pub fn stop_here(&mut self) {
        self.stopped = true;
    }
}