d30361537e
This PR updates the `SlashCommand` trait to use a streaming return type. This change is just at the trait layer. The goal here is to decouple changing the trait's API while preserving behavior on either side. The `SlashCommandOutput` type now has two methods for converting two and from a stream to use in cases where we're not yet doing streaming. On the `SlashCommand` implementer side, the implements can call `to_event_stream` to produce a stream of events based off the `SlashCommandOutput`. On the slash command consumer side we use `SlashCommandOutput::from_event_stream` to convert a stream of events back into a `SlashCommandOutput`. The `/file` slash command has been updated to emit `SlashCommandEvent`s directly in order for it to work properly. Release Notes: - N/A --------- Co-authored-by: Max <max@zed.dev>
95 lines
3.2 KiB
Rust
95 lines
3.2 KiB
Rust
use anyhow::{anyhow, Context as _, Result};
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use assistant_slash_command::{
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ArgumentCompletion, SlashCommand, SlashCommandOutput, SlashCommandOutputSection,
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SlashCommandResult,
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};
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use editor::Editor;
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use gpui::{Task, WeakView};
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use language::{BufferSnapshot, LspAdapterDelegate};
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use std::sync::Arc;
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use std::{path::Path, sync::atomic::AtomicBool};
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use ui::{IconName, WindowContext};
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use workspace::Workspace;
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pub(crate) struct OutlineSlashCommand;
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impl SlashCommand for OutlineSlashCommand {
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fn name(&self) -> String {
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"symbols".into()
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}
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fn description(&self) -> String {
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"Insert symbols for active tab".into()
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}
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fn menu_text(&self) -> String {
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self.description()
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}
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fn complete_argument(
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self: Arc<Self>,
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_arguments: &[String],
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_cancel: Arc<AtomicBool>,
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_workspace: Option<WeakView<Workspace>>,
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_cx: &mut WindowContext,
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) -> Task<Result<Vec<ArgumentCompletion>>> {
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Task::ready(Err(anyhow!("this command does not require argument")))
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}
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fn requires_argument(&self) -> bool {
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false
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}
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fn run(
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self: Arc<Self>,
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_arguments: &[String],
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_context_slash_command_output_sections: &[SlashCommandOutputSection<language::Anchor>],
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_context_buffer: BufferSnapshot,
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workspace: WeakView<Workspace>,
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_delegate: Option<Arc<dyn LspAdapterDelegate>>,
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cx: &mut WindowContext,
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) -> Task<SlashCommandResult> {
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let output = workspace.update(cx, |workspace, cx| {
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let Some(active_item) = workspace.active_item(cx) else {
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return Task::ready(Err(anyhow!("no active tab")));
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};
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let Some(buffer) = active_item
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.downcast::<Editor>()
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.and_then(|editor| editor.read(cx).buffer().read(cx).as_singleton())
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else {
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return Task::ready(Err(anyhow!("active tab is not an editor")));
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};
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let snapshot = buffer.read(cx).snapshot();
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let path = snapshot.resolve_file_path(cx, true);
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cx.background_executor().spawn(async move {
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let outline = snapshot
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.outline(None)
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.context("no symbols for active tab")?;
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let path = path.as_deref().unwrap_or(Path::new("untitled"));
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let mut outline_text = format!("Symbols for {}:\n", path.display());
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for item in &outline.path_candidates {
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outline_text.push_str("- ");
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outline_text.push_str(&item.string);
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outline_text.push('\n');
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}
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Ok(SlashCommandOutput {
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sections: vec![SlashCommandOutputSection {
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range: 0..outline_text.len(),
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icon: IconName::ListTree,
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label: path.to_string_lossy().to_string().into(),
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metadata: None,
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}],
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text: outline_text,
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run_commands_in_text: false,
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}
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.to_event_stream())
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})
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});
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output.unwrap_or_else(|error| Task::ready(Err(error)))
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}
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}
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