use std::sync::Arc;use std::time::Duration; use crate::Editor;use collections::HashMap;use futures::stream::FuturesUnordered;use gpui::AsyncApp;use gpui::{App, AppContext as _, Entity, Task};use itertools::Itertools;use language::Buffer;use language::Language;use lsp::LanguageServerId;use lsp::LanguageServerName;use multi_buffer::Anchor;use project::LanguageServerToQuery;use project::LocationLink;use project::Project;use project::TaskSourceKind;use project::lsp_store::lsp_ext_command::GetLspRunnables;use smol::future::FutureExt as _;use smol::stream::StreamExt;use task::ResolvedTask;use task::TaskContext;use text::BufferId;use ui::SharedString;use util::ResultExt as _; pub(crate) fn find_specific_language_server_in_selection<F>(    editor: &Editor,    cx: &mut App,    filter_language: F,    language_server_name: &str,) -> Task<Option<(Anchor, Arc<Language>, LanguageServerId, Entity<Buffer>)>>where    F: Fn(&Language) -> bool,{    let Some(project) = &editor.project else {        return Task::ready(None);    };     let applicable_buffers = editor        .selections        .disjoint_anchors()        .iter()        .filter(|selection| selection.start == selection.end)        .filter_map(|selection| Some((selection.start, selection.start.buffer_id?)))        .filter_map(|(trigger_anchor, buffer_id)| {            let buffer = editor.buffer().read(cx).buffer(buffer_id)?;            let language = buffer.read(cx).language_at(trigger_anchor.text_anchor)?;            if filter_language(&language) {                Some((trigger_anchor, buffer, language))            } else {                None            }        })        .unique_by(|(_, buffer, _)| buffer.read(cx).remote_id())        .collect::<Vec<_>>();     let applicable_buffer_tasks = applicable_buffers        .into_iter()        .map(|(trigger_anchor, buffer, language)| {            let task = buffer.update(cx, |buffer, cx| {                project.update(cx, |project, cx| {                    project.language_server_id_for_name(buffer, language_server_name, cx)                })            });            (trigger_anchor, buffer, language, task)        })        .collect::<Vec<_>>();    cx.background_spawn(async move {        for (trigger_anchor, buffer, language, task) in applicable_buffer_tasks {            if let Some(server_id) = task.await {                return Some((trigger_anchor, language, server_id, buffer));            }        }         None    })} async fn lsp_task_context(    project: &Entity<Project>,    buffer: &Entity<Buffer>,    cx: &mut AsyncApp,) -> Option<TaskContext> {    let worktree_store = project        .read_with(cx, |project, _| project.worktree_store())        .ok()?;     let worktree_abs_path = cx        .update(|cx| {            let worktree_id = buffer.read(cx).file().map(|f| f.worktree_id(cx));             worktree_id                .and_then(|worktree_id| worktree_store.read(cx).worktree_for_id(worktree_id, cx))                .and_then(|worktree| worktree.read(cx).root_dir())        })        .ok()?;     let project_env = project        .update(cx, |project, cx| {            project.buffer_environment(&buffer, &worktree_store, cx)        })        .ok()?        .await;     Some(TaskContext {        cwd: worktree_abs_path.map(|p| p.to_path_buf()),        project_env: project_env.unwrap_or_default(),        ..TaskContext::default()    })} pub fn lsp_tasks(    project: Entity<Project>,    task_sources: &HashMap<LanguageServerName, Vec<BufferId>>,    for_position: Option<text::Anchor>,    cx: &mut App,) -> Task<Vec<(TaskSourceKind, Vec<(Option<LocationLink>, ResolvedTask)>)>> {    let mut lsp_task_sources = task_sources        .iter()        .map(|(name, buffer_ids)| {            let buffers = buffer_ids                .iter()                .filter(|&&buffer_id| match for_position {                    Some(for_position) => for_position.buffer_id == Some(buffer_id),                    None => true,                })                .filter_map(|&buffer_id| project.read(cx).buffer_for_id(buffer_id, cx))                .collect::<Vec<_>>();            language_server_for_buffers(project.clone(), name.clone(), buffers, cx)        })        .collect::<FuturesUnordered<_>>();     cx.spawn(async move |cx| {        cx.spawn(async move |cx| {            let mut lsp_tasks = HashMap::default();            while let Some(server_to_query) = lsp_task_sources.next().await {                if let Some((server_id, buffers)) = server_to_query {                    let mut new_lsp_tasks = Vec::new();                    for buffer in buffers {                        let source_kind = match buffer.update(cx, |buffer, _| {                            buffer.language().map(|language| language.name())                        }) {                            Ok(Some(language_name)) => TaskSourceKind::Lsp {                                server: server_id,                                language_name: SharedString::from(language_name),                            },                            Ok(None) => continue,                            Err(_) => return Vec::new(),                        };                        let id_base = source_kind.to_id_base();                        let lsp_buffer_context = lsp_task_context(&project, &buffer, cx)                            .await                            .unwrap_or_default();                         if let Ok(runnables_task) = project.update(cx, |project, cx| {                            let buffer_id = buffer.read(cx).remote_id();                            project.request_lsp(                                buffer,                                LanguageServerToQuery::Other(server_id),                                GetLspRunnables {                                    buffer_id,                                    position: for_position,                                },                                cx,                            )                        }) {                            if let Some(new_runnables) = runnables_task.await.log_err() {                                new_lsp_tasks.extend(                                    new_runnables.runnables.into_iter().filter_map(                                        |(location, runnable)| {                                            let resolved_task = runnable                                                .resolve_task(&id_base, &lsp_buffer_context)?;                                            Some((location, resolved_task))                                        },                                    ),                                );                            }                        }                        lsp_tasks                            .entry(source_kind)                            .or_insert_with(Vec::new)                            .append(&mut new_lsp_tasks);                    }                }            }            lsp_tasks.into_iter().collect()        })        .race({            // `lsp::LSP_REQUEST_TIMEOUT` is larger than we want for the modal to open fast            let timer = cx.background_executor().timer(Duration::from_millis(200));            async move {                timer.await;                log::info!("Timed out waiting for LSP tasks");                Vec::new()            }        })        .await    })} fn language_server_for_buffers(    project: Entity<Project>,    name: LanguageServerName,    candidates: Vec<Entity<Buffer>>,    cx: &mut App,) -> Task<Option<(LanguageServerId, Vec<Entity<Buffer>>)>> {    cx.spawn(async move |cx| {        for buffer in &candidates {            let server_id = buffer                .update(cx, |buffer, cx| {                    project.update(cx, |project, cx| {                        project.language_server_id_for_name(buffer, &name.0, cx)                    })                })                .ok()?                .await;            if let Some(server_id) = server_id {                return Some((server_id, candidates));            }        }        None    })}