57 lines
1.6 KiB
Rust
57 lines
1.6 KiB
Rust
use tower_lsp::jsonrpc::Result;
|
|
use tower_lsp::lsp_types::*;
|
|
use tower_lsp::{Client, LanguageServer, LspService, Server};
|
|
|
|
#[derive(Debug)]
|
|
struct Backend {
|
|
client: Client,
|
|
}
|
|
|
|
#[tower_lsp::async_trait]
|
|
impl LanguageServer for Backend {
|
|
async fn initialize(&self, _: InitializeParams) -> Result<InitializeResult> {
|
|
let mut res = InitializeResult::default();
|
|
|
|
res.capabilities.completion_provider = Some(CompletionOptions {
|
|
resolve_provider: None,
|
|
trigger_characters: None,
|
|
all_commit_characters: None,
|
|
work_done_progress_options: WorkDoneProgressOptions {
|
|
work_done_progress: None,
|
|
},
|
|
completion_item: None,
|
|
});
|
|
|
|
Ok(res)
|
|
}
|
|
|
|
async fn initialized(&self, _: InitializedParams) {
|
|
self.client
|
|
.log_message(MessageType::INFO, "server initialized!")
|
|
.await;
|
|
}
|
|
|
|
async fn completion(&self, _params: CompletionParams) -> Result<Option<CompletionResponse>> {
|
|
self.client
|
|
.log_message(MessageType::INFO, "getting completion")
|
|
.await;
|
|
|
|
Ok(Some(CompletionResponse::Array(vec![
|
|
CompletionItem::new_simple("new".to_string(), "The new keyword".to_string()),
|
|
])))
|
|
}
|
|
|
|
async fn shutdown(&self) -> Result<()> {
|
|
Ok(())
|
|
}
|
|
}
|
|
|
|
#[tokio::main]
|
|
pub async fn start() {
|
|
let stdin = tokio::io::stdin();
|
|
let stdout = tokio::io::stdout();
|
|
|
|
let (service, socket) = LspService::new(|client| Backend { client });
|
|
Server::new(stdin, stdout, socket).serve(service).await;
|
|
}
|