1use std::ops::Range;
 2
 3use crate::{Location, Runnable};
 4
 5use anyhow::Result;
 6use collections::HashMap;
 7use gpui::AppContext;
 8use task::{TaskTemplates, TaskVariables};
 9use text::BufferId;
10
11pub struct RunnableRange {
12    pub buffer_id: BufferId,
13    pub run_range: Range<usize>,
14    pub runnable: Runnable,
15    pub extra_captures: HashMap<String, String>,
16}
17/// Language Contexts are used by Zed tasks to extract information about the source file where the tasks are supposed to be scheduled from.
18/// Multiple context providers may be used together: by default, Zed provides a base [`BasicContextProvider`] context that fills all non-custom [`VariableName`] variants.
19///
20/// The context will be used to fill data for the tasks, and filter out the ones that do not have the variables required.
21pub trait ContextProvider: Send + Sync {
22    /// Builds a specific context to be placed on top of the basic one (replacing all conflicting entries) and to be used for task resolving later.
23    fn build_context(
24        &self,
25        _variables: &TaskVariables,
26        _location: &Location,
27        _cx: &mut AppContext,
28    ) -> Result<TaskVariables> {
29        Ok(TaskVariables::default())
30    }
31
32    /// Provides all tasks, associated with the current language.
33    fn associated_tasks(&self) -> Option<TaskTemplates> {
34        None
35    }
36}