mirror of https://github.com/helix-editor/helix
Move most LSP specific commmands to commands::lsp
Blaž Hrastnik
3 years ago
parent
7b1d682fe5
commit
504d5ce8bd
@ -0,0 +1,776 @@
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use helix_lsp::{
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block_on, lsp,
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util::{lsp_pos_to_pos, lsp_range_to_range, pos_to_lsp_pos, range_to_lsp_range},
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OffsetEncoding,
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};
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use super::{align_view, push_jump, Align, Context, Editor};
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use helix_core::Selection;
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use helix_view::editor::Action;
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use crate::{
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compositor::{self, Compositor},
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ui::{self, overlay::overlayed, FilePicker, Popup, Prompt, PromptEvent},
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};
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use std::borrow::Cow;
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fn sym_picker(
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symbols: Vec<lsp::SymbolInformation>,
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current_path: Option<lsp::Url>,
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offset_encoding: OffsetEncoding,
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) -> FilePicker<lsp::SymbolInformation> {
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// TODO: drop current_path comparison and instead use workspace: bool flag?
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let current_path2 = current_path.clone();
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let mut picker = FilePicker::new(
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symbols,
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move |symbol| {
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if current_path.as_ref() == Some(&symbol.location.uri) {
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symbol.name.as_str().into()
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} else {
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let path = symbol.location.uri.to_file_path().unwrap();
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let relative_path = helix_core::path::get_relative_path(path.as_path())
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.to_string_lossy()
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.into_owned();
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format!("{} ({})", &symbol.name, relative_path).into()
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}
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},
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move |cx, symbol, action| {
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if current_path2.as_ref() == Some(&symbol.location.uri) {
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push_jump(cx.editor);
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} else {
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let path = symbol.location.uri.to_file_path().unwrap();
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cx.editor.open(path, action).expect("editor.open failed");
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}
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let (view, doc) = current!(cx.editor);
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if let Some(range) =
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lsp_range_to_range(doc.text(), symbol.location.range, offset_encoding)
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{
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// we flip the range so that the cursor sits on the start of the symbol
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// (for example start of the function).
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doc.set_selection(view.id, Selection::single(range.head, range.anchor));
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align_view(doc, view, Align::Center);
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}
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},
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move |_editor, symbol| {
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let path = symbol.location.uri.to_file_path().unwrap();
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let line = Some((
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symbol.location.range.start.line as usize,
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symbol.location.range.end.line as usize,
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));
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Some((path, line))
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},
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);
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picker.truncate_start = false;
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picker
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}
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pub fn symbol_picker(cx: &mut Context) {
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fn nested_to_flat(
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list: &mut Vec<lsp::SymbolInformation>,
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file: &lsp::TextDocumentIdentifier,
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symbol: lsp::DocumentSymbol,
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) {
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#[allow(deprecated)]
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list.push(lsp::SymbolInformation {
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name: symbol.name,
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kind: symbol.kind,
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tags: symbol.tags,
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deprecated: symbol.deprecated,
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location: lsp::Location::new(file.uri.clone(), symbol.selection_range),
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container_name: None,
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});
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for child in symbol.children.into_iter().flatten() {
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nested_to_flat(list, file, child);
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}
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}
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let doc = doc!(cx.editor);
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let language_server = match doc.language_server() {
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Some(language_server) => language_server,
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None => return,
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};
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let current_url = doc.url();
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let offset_encoding = language_server.offset_encoding();
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let future = language_server.document_symbols(doc.identifier());
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cx.callback(
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future,
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move |editor: &mut Editor,
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compositor: &mut Compositor,
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response: Option<lsp::DocumentSymbolResponse>| {
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if let Some(symbols) = response {
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// lsp has two ways to represent symbols (flat/nested)
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// convert the nested variant to flat, so that we have a homogeneous list
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let symbols = match symbols {
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lsp::DocumentSymbolResponse::Flat(symbols) => symbols,
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lsp::DocumentSymbolResponse::Nested(symbols) => {
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let doc = doc!(editor);
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let mut flat_symbols = Vec::new();
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for symbol in symbols {
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nested_to_flat(&mut flat_symbols, &doc.identifier(), symbol)
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}
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flat_symbols
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}
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};
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let picker = sym_picker(symbols, current_url, offset_encoding);
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compositor.push(Box::new(overlayed(picker)))
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}
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},
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)
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}
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pub fn workspace_symbol_picker(cx: &mut Context) {
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let doc = doc!(cx.editor);
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let current_url = doc.url();
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let language_server = match doc.language_server() {
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Some(language_server) => language_server,
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None => return,
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};
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let offset_encoding = language_server.offset_encoding();
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let future = language_server.workspace_symbols("".to_string());
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cx.callback(
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future,
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move |_editor: &mut Editor,
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compositor: &mut Compositor,
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response: Option<Vec<lsp::SymbolInformation>>| {
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if let Some(symbols) = response {
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let picker = sym_picker(symbols, current_url, offset_encoding);
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compositor.push(Box::new(overlayed(picker)))
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}
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},
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)
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}
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impl ui::menu::Item for lsp::CodeActionOrCommand {
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fn label(&self) -> &str {
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match self {
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lsp::CodeActionOrCommand::CodeAction(action) => action.title.as_str(),
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lsp::CodeActionOrCommand::Command(command) => command.title.as_str(),
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}
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}
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}
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pub fn code_action(cx: &mut Context) {
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let (view, doc) = current!(cx.editor);
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let language_server = match doc.language_server() {
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Some(language_server) => language_server,
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None => return,
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};
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let range = range_to_lsp_range(
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doc.text(),
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doc.selection(view.id).primary(),
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language_server.offset_encoding(),
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);
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let future = language_server.code_actions(doc.identifier(), range);
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let offset_encoding = language_server.offset_encoding();
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cx.callback(
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future,
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move |editor: &mut Editor,
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compositor: &mut Compositor,
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response: Option<lsp::CodeActionResponse>| {
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let actions = match response {
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Some(a) => a,
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None => return,
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};
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if actions.is_empty() {
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editor.set_status("No code actions available");
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return;
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}
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let mut picker = ui::Menu::new(actions, move |editor, code_action, event| {
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if event != PromptEvent::Validate {
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return;
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}
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// always present here
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let code_action = code_action.unwrap();
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match code_action {
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lsp::CodeActionOrCommand::Command(command) => {
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log::debug!("code action command: {:?}", command);
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execute_lsp_command(editor, command.clone());
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}
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lsp::CodeActionOrCommand::CodeAction(code_action) => {
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log::debug!("code action: {:?}", code_action);
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if let Some(ref workspace_edit) = code_action.edit {
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log::debug!("edit: {:?}", workspace_edit);
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apply_workspace_edit(editor, offset_encoding, workspace_edit);
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}
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// if code action provides both edit and command first the edit
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// should be applied and then the command
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if let Some(command) = &code_action.command {
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execute_lsp_command(editor, command.clone());
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}
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}
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}
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});
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picker.move_down(); // pre-select the first item
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let popup = Popup::new("code-action", picker).margin(helix_view::graphics::Margin {
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vertical: 1,
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horizontal: 1,
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});
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compositor.replace_or_push("code-action", Box::new(popup));
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},
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)
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}
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pub fn execute_lsp_command(editor: &mut Editor, cmd: lsp::Command) {
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let doc = doc!(editor);
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let language_server = match doc.language_server() {
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Some(language_server) => language_server,
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None => return,
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};
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// the command is executed on the server and communicated back
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// to the client asynchronously using workspace edits
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let command_future = language_server.command(cmd);
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tokio::spawn(async move {
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let res = command_future.await;
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if let Err(e) = res {
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log::error!("execute LSP command: {}", e);
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}
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});
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}
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pub fn apply_document_resource_op(op: &lsp::ResourceOp) -> std::io::Result<()> {
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use lsp::ResourceOp;
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use std::fs;
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match op {
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ResourceOp::Create(op) => {
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let path = op.uri.to_file_path().unwrap();
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let ignore_if_exists = op.options.as_ref().map_or(false, |options| {
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!options.overwrite.unwrap_or(false) && options.ignore_if_exists.unwrap_or(false)
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});
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if ignore_if_exists && path.exists() {
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Ok(())
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} else {
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fs::write(&path, [])
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}
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}
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ResourceOp::Delete(op) => {
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let path = op.uri.to_file_path().unwrap();
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if path.is_dir() {
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let recursive = op
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.options
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.as_ref()
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.and_then(|options| options.recursive)
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.unwrap_or(false);
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if recursive {
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fs::remove_dir_all(&path)
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} else {
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fs::remove_dir(&path)
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}
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} else if path.is_file() {
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fs::remove_file(&path)
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} else {
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Ok(())
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}
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}
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ResourceOp::Rename(op) => {
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let from = op.old_uri.to_file_path().unwrap();
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let to = op.new_uri.to_file_path().unwrap();
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let ignore_if_exists = op.options.as_ref().map_or(false, |options| {
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!options.overwrite.unwrap_or(false) && options.ignore_if_exists.unwrap_or(false)
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});
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if ignore_if_exists && to.exists() {
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Ok(())
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} else {
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fs::rename(&from, &to)
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}
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}
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}
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}
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pub fn apply_workspace_edit(
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editor: &mut Editor,
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offset_encoding: OffsetEncoding,
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workspace_edit: &lsp::WorkspaceEdit,
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) {
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let mut apply_edits = |uri: &helix_lsp::Url, text_edits: Vec<lsp::TextEdit>| {
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let path = uri
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.to_file_path()
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.expect("unable to convert URI to filepath");
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let current_view_id = view!(editor).id;
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let doc_id = editor.open(path, Action::Load).unwrap();
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let doc = editor
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.document_mut(doc_id)
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.expect("Document for document_changes not found");
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// Need to determine a view for apply/append_changes_to_history
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let selections = doc.selections();
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let view_id = if selections.contains_key(¤t_view_id) {
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// use current if possible
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current_view_id
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} else {
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// Hack: we take the first available view_id
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selections
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.keys()
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.next()
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.copied()
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.expect("No view_id available")
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};
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let transaction = helix_lsp::util::generate_transaction_from_edits(
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doc.text(),
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text_edits,
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offset_encoding,
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);
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doc.apply(&transaction, view_id);
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doc.append_changes_to_history(view_id);
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};
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if let Some(ref changes) = workspace_edit.changes {
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log::debug!("workspace changes: {:?}", changes);
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for (uri, text_edits) in changes {
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let text_edits = text_edits.to_vec();
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apply_edits(uri, text_edits);
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}
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return;
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// Not sure if it works properly, it'll be safer to just panic here to avoid breaking some parts of code on which code actions will be used
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// TODO: find some example that uses workspace changes, and test it
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// for (url, edits) in changes.iter() {
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// let file_path = url.origin().ascii_serialization();
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// let file_path = std::path::PathBuf::from(file_path);
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// let file = std::fs::File::open(file_path).unwrap();
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// let mut text = Rope::from_reader(file).unwrap();
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// let transaction = edits_to_changes(&text, edits);
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// transaction.apply(&mut text);
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// }
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}
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if let Some(ref document_changes) = workspace_edit.document_changes {
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match document_changes {
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lsp::DocumentChanges::Edits(document_edits) => {
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for document_edit in document_edits {
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let edits = document_edit
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.edits
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.iter()
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.map(|edit| match edit {
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lsp::OneOf::Left(text_edit) => text_edit,
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lsp::OneOf::Right(annotated_text_edit) => {
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&annotated_text_edit.text_edit
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}
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})
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.cloned()
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.collect();
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apply_edits(&document_edit.text_document.uri, edits);
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}
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}
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lsp::DocumentChanges::Operations(operations) => {
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log::debug!("document changes - operations: {:?}", operations);
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for operateion in operations {
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match operateion {
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lsp::DocumentChangeOperation::Op(op) => {
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apply_document_resource_op(op).unwrap();
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}
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lsp::DocumentChangeOperation::Edit(document_edit) => {
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let edits = document_edit
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.edits
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.iter()
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.map(|edit| match edit {
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lsp::OneOf::Left(text_edit) => text_edit,
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lsp::OneOf::Right(annotated_text_edit) => {
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&annotated_text_edit.text_edit
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}
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})
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.cloned()
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.collect();
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apply_edits(&document_edit.text_document.uri, edits);
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}
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}
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}
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}
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}
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}
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}
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fn goto_impl(
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editor: &mut Editor,
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compositor: &mut Compositor,
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locations: Vec<lsp::Location>,
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offset_encoding: OffsetEncoding,
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) {
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push_jump(editor);
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// TODO: share with symbol picker(symbol.location)
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fn jump_to(
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editor: &mut Editor,
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location: &lsp::Location,
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offset_encoding: OffsetEncoding,
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action: Action,
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) {
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let path = location
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.uri
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.to_file_path()
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.expect("unable to convert URI to filepath");
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let _id = editor.open(path, action).expect("editor.open failed");
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let (view, doc) = current!(editor);
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let definition_pos = location.range.start;
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// TODO: convert inside server
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let new_pos =
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if let Some(new_pos) = lsp_pos_to_pos(doc.text(), definition_pos, offset_encoding) {
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new_pos
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} else {
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return;
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};
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doc.set_selection(view.id, Selection::point(new_pos));
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align_view(doc, view, Align::Center);
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}
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let cwdir = std::env::current_dir().expect("couldn't determine current directory");
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match locations.as_slice() {
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[location] => {
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jump_to(editor, location, offset_encoding, Action::Replace);
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}
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[] => {
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editor.set_error("No definition found.");
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}
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_locations => {
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let picker = FilePicker::new(
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locations,
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move |location| {
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let file: Cow<'_, str> = (location.uri.scheme() == "file")
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.then(|| {
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location
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.uri
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.to_file_path()
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.map(|path| {
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// strip root prefix
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path.strip_prefix(&cwdir)
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.map(|path| path.to_path_buf())
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.unwrap_or(path)
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})
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.map(|path| Cow::from(path.to_string_lossy().into_owned()))
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.ok()
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})
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.flatten()
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.unwrap_or_else(|| location.uri.as_str().into());
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let line = location.range.start.line;
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format!("{}:{}", file, line).into()
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},
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move |cx, location, action| jump_to(cx.editor, location, offset_encoding, action),
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|_editor, location| {
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// TODO: share code for symbol.location and location
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let path = location.uri.to_file_path().unwrap();
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let line = Some((
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location.range.start.line as usize,
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location.range.end.line as usize,
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));
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Some((path, line))
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},
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);
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compositor.push(Box::new(overlayed(picker)));
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}
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}
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}
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pub fn goto_definition(cx: &mut Context) {
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let (view, doc) = current!(cx.editor);
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let language_server = match doc.language_server() {
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Some(language_server) => language_server,
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||||
None => return,
|
||||
};
|
||||
|
||||
let offset_encoding = language_server.offset_encoding();
|
||||
|
||||
let pos = pos_to_lsp_pos(
|
||||
doc.text(),
|
||||
doc.selection(view.id)
|
||||
.primary()
|
||||
.cursor(doc.text().slice(..)),
|
||||
offset_encoding,
|
||||
);
|
||||
|
||||
let future = language_server.goto_definition(doc.identifier(), pos, None);
|
||||
|
||||
cx.callback(
|
||||
future,
|
||||
move |editor: &mut Editor,
|
||||
compositor: &mut Compositor,
|
||||
response: Option<lsp::GotoDefinitionResponse>| {
|
||||
let items = match response {
|
||||
Some(lsp::GotoDefinitionResponse::Scalar(location)) => vec![location],
|
||||
Some(lsp::GotoDefinitionResponse::Array(locations)) => locations,
|
||||
Some(lsp::GotoDefinitionResponse::Link(locations)) => locations
|
||||
.into_iter()
|
||||
.map(|location_link| lsp::Location {
|
||||
uri: location_link.target_uri,
|
||||
range: location_link.target_range,
|
||||
})
|
||||
.collect(),
|
||||
None => Vec::new(),
|
||||
};
|
||||
|
||||
goto_impl(editor, compositor, items, offset_encoding);
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
pub fn goto_type_definition(cx: &mut Context) {
|
||||
let (view, doc) = current!(cx.editor);
|
||||
let language_server = match doc.language_server() {
|
||||
Some(language_server) => language_server,
|
||||
None => return,
|
||||
};
|
||||
|
||||
let offset_encoding = language_server.offset_encoding();
|
||||
|
||||
let pos = pos_to_lsp_pos(
|
||||
doc.text(),
|
||||
doc.selection(view.id)
|
||||
.primary()
|
||||
.cursor(doc.text().slice(..)),
|
||||
offset_encoding,
|
||||
);
|
||||
|
||||
let future = language_server.goto_type_definition(doc.identifier(), pos, None);
|
||||
|
||||
cx.callback(
|
||||
future,
|
||||
move |editor: &mut Editor,
|
||||
compositor: &mut Compositor,
|
||||
response: Option<lsp::GotoDefinitionResponse>| {
|
||||
let items = match response {
|
||||
Some(lsp::GotoDefinitionResponse::Scalar(location)) => vec![location],
|
||||
Some(lsp::GotoDefinitionResponse::Array(locations)) => locations,
|
||||
Some(lsp::GotoDefinitionResponse::Link(locations)) => locations
|
||||
.into_iter()
|
||||
.map(|location_link| lsp::Location {
|
||||
uri: location_link.target_uri,
|
||||
range: location_link.target_range,
|
||||
})
|
||||
.collect(),
|
||||
None => Vec::new(),
|
||||
};
|
||||
|
||||
goto_impl(editor, compositor, items, offset_encoding);
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
pub fn goto_implementation(cx: &mut Context) {
|
||||
let (view, doc) = current!(cx.editor);
|
||||
let language_server = match doc.language_server() {
|
||||
Some(language_server) => language_server,
|
||||
None => return,
|
||||
};
|
||||
|
||||
let offset_encoding = language_server.offset_encoding();
|
||||
|
||||
let pos = pos_to_lsp_pos(
|
||||
doc.text(),
|
||||
doc.selection(view.id)
|
||||
.primary()
|
||||
.cursor(doc.text().slice(..)),
|
||||
offset_encoding,
|
||||
);
|
||||
|
||||
let future = language_server.goto_implementation(doc.identifier(), pos, None);
|
||||
|
||||
cx.callback(
|
||||
future,
|
||||
move |editor: &mut Editor,
|
||||
compositor: &mut Compositor,
|
||||
response: Option<lsp::GotoDefinitionResponse>| {
|
||||
let items = match response {
|
||||
Some(lsp::GotoDefinitionResponse::Scalar(location)) => vec![location],
|
||||
Some(lsp::GotoDefinitionResponse::Array(locations)) => locations,
|
||||
Some(lsp::GotoDefinitionResponse::Link(locations)) => locations
|
||||
.into_iter()
|
||||
.map(|location_link| lsp::Location {
|
||||
uri: location_link.target_uri,
|
||||
range: location_link.target_range,
|
||||
})
|
||||
.collect(),
|
||||
None => Vec::new(),
|
||||
};
|
||||
|
||||
goto_impl(editor, compositor, items, offset_encoding);
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
pub fn goto_reference(cx: &mut Context) {
|
||||
let (view, doc) = current!(cx.editor);
|
||||
let language_server = match doc.language_server() {
|
||||
Some(language_server) => language_server,
|
||||
None => return,
|
||||
};
|
||||
|
||||
let offset_encoding = language_server.offset_encoding();
|
||||
|
||||
let pos = pos_to_lsp_pos(
|
||||
doc.text(),
|
||||
doc.selection(view.id)
|
||||
.primary()
|
||||
.cursor(doc.text().slice(..)),
|
||||
offset_encoding,
|
||||
);
|
||||
|
||||
let future = language_server.goto_reference(doc.identifier(), pos, None);
|
||||
|
||||
cx.callback(
|
||||
future,
|
||||
move |editor: &mut Editor,
|
||||
compositor: &mut Compositor,
|
||||
items: Option<Vec<lsp::Location>>| {
|
||||
goto_impl(
|
||||
editor,
|
||||
compositor,
|
||||
items.unwrap_or_default(),
|
||||
offset_encoding,
|
||||
);
|
||||
},
|
||||
);
|
||||
}
|
||||
|
||||
pub fn signature_help(cx: &mut Context) {
|
||||
let (view, doc) = current!(cx.editor);
|
||||
|
||||
let language_server = match doc.language_server() {
|
||||
Some(language_server) => language_server,
|
||||
None => return,
|
||||
};
|
||||
|
||||
let pos = pos_to_lsp_pos(
|
||||
doc.text(),
|
||||
doc.selection(view.id)
|
||||
.primary()
|
||||
.cursor(doc.text().slice(..)),
|
||||
language_server.offset_encoding(),
|
||||
);
|
||||
|
||||
let future = language_server.text_document_signature_help(doc.identifier(), pos, None);
|
||||
|
||||
cx.callback(
|
||||
future,
|
||||
move |_editor: &mut Editor,
|
||||
_compositor: &mut Compositor,
|
||||
response: Option<lsp::SignatureHelp>| {
|
||||
if let Some(signature_help) = response {
|
||||
log::info!("{:?}", signature_help);
|
||||
// signatures
|
||||
// active_signature
|
||||
// active_parameter
|
||||
// render as:
|
||||
|
||||
// signature
|
||||
// ----------
|
||||
// doc
|
||||
|
||||
// with active param highlighted
|
||||
}
|
||||
},
|
||||
);
|
||||
}
|
||||
pub fn hover(cx: &mut Context) {
|
||||
let (view, doc) = current!(cx.editor);
|
||||
|
||||
let language_server = match doc.language_server() {
|
||||
Some(language_server) => language_server,
|
||||
None => return,
|
||||
};
|
||||
|
||||
// TODO: factor out a doc.position_identifier() that returns lsp::TextDocumentPositionIdentifier
|
||||
|
||||
let pos = pos_to_lsp_pos(
|
||||
doc.text(),
|
||||
doc.selection(view.id)
|
||||
.primary()
|
||||
.cursor(doc.text().slice(..)),
|
||||
language_server.offset_encoding(),
|
||||
);
|
||||
|
||||
let future = language_server.text_document_hover(doc.identifier(), pos, None);
|
||||
|
||||
cx.callback(
|
||||
future,
|
||||
move |editor: &mut Editor, compositor: &mut Compositor, response: Option<lsp::Hover>| {
|
||||
if let Some(hover) = response {
|
||||
// hover.contents / .range <- used for visualizing
|
||||
|
||||
fn marked_string_to_markdown(contents: lsp::MarkedString) -> String {
|
||||
match contents {
|
||||
lsp::MarkedString::String(contents) => contents,
|
||||
lsp::MarkedString::LanguageString(string) => {
|
||||
if string.language == "markdown" {
|
||||
string.value
|
||||
} else {
|
||||
format!("```{}\n{}\n```", string.language, string.value)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
let contents = match hover.contents {
|
||||
lsp::HoverContents::Scalar(contents) => marked_string_to_markdown(contents),
|
||||
lsp::HoverContents::Array(contents) => contents
|
||||
.into_iter()
|
||||
.map(marked_string_to_markdown)
|
||||
.collect::<Vec<_>>()
|
||||
.join("\n\n"),
|
||||
lsp::HoverContents::Markup(contents) => contents.value,
|
||||
};
|
||||
|
||||
// skip if contents empty
|
||||
|
||||
let contents =
|
||||
ui::Markdown::new(contents, editor.syn_loader.clone()).style_group("hover");
|
||||
let popup = Popup::new("hover", contents);
|
||||
compositor.replace_or_push("hover", Box::new(popup));
|
||||
}
|
||||
},
|
||||
);
|
||||
}
|
||||
pub fn rename_symbol(cx: &mut Context) {
|
||||
let prompt = Prompt::new(
|
||||
"rename-to:".into(),
|
||||
None,
|
||||
ui::completers::none,
|
||||
move |cx: &mut compositor::Context, input: &str, event: PromptEvent| {
|
||||
if event != PromptEvent::Validate {
|
||||
return;
|
||||
}
|
||||
|
||||
log::debug!("renaming to: {:?}", input);
|
||||
|
||||
let (view, doc) = current!(cx.editor);
|
||||
let language_server = match doc.language_server() {
|
||||
Some(language_server) => language_server,
|
||||
None => return,
|
||||
};
|
||||
|
||||
let offset_encoding = language_server.offset_encoding();
|
||||
|
||||
let pos = pos_to_lsp_pos(
|
||||
doc.text(),
|
||||
doc.selection(view.id)
|
||||
.primary()
|
||||
.cursor(doc.text().slice(..)),
|
||||
offset_encoding,
|
||||
);
|
||||
|
||||
let task = language_server.rename_symbol(doc.identifier(), pos, input.to_string());
|
||||
let edits = block_on(task).unwrap_or_default();
|
||||
log::debug!("Edits from LSP: {:?}", edits);
|
||||
apply_workspace_edit(cx.editor, offset_encoding, &edits);
|
||||
},
|
||||
);
|
||||
cx.push_layer(Box::new(prompt));
|
||||
}
|
||||
Loading…
Reference in New Issue