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https://github.com/denoland/deno.git
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28a72d5488
Adds a `deno.preloadLimit` option (ex. `"deno.preloadLimit": 2000`) which specifies how many file entries to traverse on the file system when the lsp loads or its configuration changes. Closes #18955
724 lines
23 KiB
Rust
724 lines
23 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use super::client::Client;
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use super::config::ConfigSnapshot;
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use super::documents::Documents;
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use super::documents::DocumentsFilter;
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use super::lsp_custom;
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use super::registries::ModuleRegistry;
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use super::tsc;
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use crate::util::path::is_supported_ext;
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use crate::util::path::relative_specifier;
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use crate::util::path::specifier_to_file_path;
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use deno_ast::LineAndColumnIndex;
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use deno_ast::SourceTextInfo;
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use deno_core::normalize_path;
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use deno_core::resolve_path;
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use deno_core::resolve_url;
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use deno_core::serde::Deserialize;
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use deno_core::serde::Serialize;
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use deno_core::url::Position;
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use deno_core::ModuleSpecifier;
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use import_map::ImportMap;
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use once_cell::sync::Lazy;
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use regex::Regex;
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use std::sync::Arc;
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use tower_lsp::lsp_types as lsp;
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static FILE_PROTO_RE: Lazy<Regex> =
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lazy_regex::lazy_regex!(r#"^file:/{2}(?:/[A-Za-z]:)?"#);
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const CURRENT_PATH: &str = ".";
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const PARENT_PATH: &str = "..";
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const LOCAL_PATHS: &[&str] = &[CURRENT_PATH, PARENT_PATH];
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pub(crate) const IMPORT_COMMIT_CHARS: &[&str] = &["\"", "'"];
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct CompletionItemData {
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#[serde(skip_serializing_if = "Option::is_none")]
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pub documentation: Option<String>,
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#[serde(skip_serializing_if = "Option::is_none")]
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pub tsc: Option<tsc::CompletionItemData>,
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}
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/// Check if the origin can be auto-configured for completions, and if so, send
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/// a notification to the client.
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async fn check_auto_config_registry(
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url_str: &str,
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config: &ConfigSnapshot,
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client: &Client,
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module_registries: &ModuleRegistry,
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) {
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// check to see if auto discovery is enabled
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if config.settings.workspace.suggest.imports.auto_discover {
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if let Ok(specifier) = resolve_url(url_str) {
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let scheme = specifier.scheme();
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let path = &specifier[Position::BeforePath..];
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if scheme.starts_with("http")
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&& !path.is_empty()
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&& url_str.ends_with(path)
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{
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// check to see if this origin is already explicitly set
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let in_config =
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config.settings.workspace.suggest.imports.hosts.iter().any(
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|(h, _)| {
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resolve_url(h).map(|u| u.origin()) == Ok(specifier.origin())
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},
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);
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// if it isn't in the configuration, we will check to see if it supports
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// suggestions and send a notification to the client.
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if !in_config {
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let origin = specifier.origin().ascii_serialization();
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let suggestions =
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module_registries.check_origin(&origin).await.is_ok();
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// we are only sending registry state when enabled now, but changing
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// the custom notification would make older versions of the plugin
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// incompatible.
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// TODO(@kitsonk) clean up protocol when doing v2 of suggestions
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if suggestions {
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client.send_registry_state_notification(
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lsp_custom::RegistryStateNotificationParams {
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origin,
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suggestions,
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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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}
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/// Ranges from the graph for specifiers include the leading and maybe trailing quote,
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/// which we want to ignore when replacing text.
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fn to_narrow_lsp_range(
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text_info: &SourceTextInfo,
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range: &deno_graph::Range,
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) -> lsp::Range {
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let end_byte_index = text_info
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.loc_to_source_pos(LineAndColumnIndex {
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line_index: range.end.line,
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column_index: range.end.character,
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})
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.as_byte_index(text_info.range().start);
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let start_byte_index = text_info
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.loc_to_source_pos(LineAndColumnIndex {
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line_index: range.start.line,
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column_index: range.start.character,
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})
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.as_byte_index(text_info.range().start);
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let text_bytes = text_info.text_str().as_bytes();
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let is_empty = end_byte_index - 1 == start_byte_index;
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let has_trailing_quote =
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!is_empty && matches!(text_bytes[end_byte_index - 1], b'"' | b'\'');
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lsp::Range {
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start: lsp::Position {
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line: range.start.line as u32,
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// skip the leading quote
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character: (range.start.character + 1) as u32,
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},
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end: lsp::Position {
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line: range.end.line as u32,
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character: if has_trailing_quote {
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range.end.character - 1 // do not include it
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} else {
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range.end.character
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} as u32,
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},
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}
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}
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/// Given a specifier, a position, and a snapshot, optionally return a
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/// completion response, which will be valid import completions for the specific
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/// context.
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pub async fn get_import_completions(
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specifier: &ModuleSpecifier,
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position: &lsp::Position,
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config: &ConfigSnapshot,
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client: &Client,
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module_registries: &ModuleRegistry,
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documents: &Documents,
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maybe_import_map: Option<Arc<ImportMap>>,
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) -> Option<lsp::CompletionResponse> {
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let document = documents.get(specifier)?;
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let (text, _, range) = document.get_maybe_dependency(position)?;
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let range = to_narrow_lsp_range(&document.text_info(), &range);
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if let Some(completion_list) = get_import_map_completions(
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specifier,
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&text,
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&range,
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maybe_import_map.clone(),
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documents,
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) {
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// completions for import map specifiers
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Some(lsp::CompletionResponse::List(completion_list))
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} else if text.starts_with("./") || text.starts_with("../") {
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// completions for local relative modules
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Some(lsp::CompletionResponse::List(lsp::CompletionList {
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is_incomplete: false,
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items: get_local_completions(specifier, &text, &range)?,
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}))
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} else if !text.is_empty() {
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// completion of modules from a module registry or cache
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check_auto_config_registry(&text, config, client, module_registries).await;
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let offset = if position.character > range.start.character {
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(position.character - range.start.character) as usize
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} else {
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0
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};
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let maybe_list = module_registries
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.get_completions(&text, offset, &range, |specifier| {
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documents.exists(specifier)
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})
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.await;
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let list = maybe_list.unwrap_or_else(|| lsp::CompletionList {
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items: get_workspace_completions(specifier, &text, &range, documents),
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is_incomplete: false,
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});
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Some(lsp::CompletionResponse::List(list))
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} else {
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// the import specifier is empty, so provide all possible specifiers we are
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// aware of
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let mut items: Vec<lsp::CompletionItem> = LOCAL_PATHS
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.iter()
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.map(|s| lsp::CompletionItem {
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label: s.to_string(),
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kind: Some(lsp::CompletionItemKind::FOLDER),
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detail: Some("(local)".to_string()),
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sort_text: Some("1".to_string()),
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insert_text: Some(s.to_string()),
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commit_characters: Some(
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IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
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),
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..Default::default()
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})
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.collect();
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let mut is_incomplete = false;
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if let Some(import_map) = maybe_import_map {
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items.extend(get_base_import_map_completions(import_map.as_ref()));
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}
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if let Some(origin_items) =
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module_registries.get_origin_completions(&text, &range)
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{
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is_incomplete = origin_items.is_incomplete;
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items.extend(origin_items.items);
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}
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Some(lsp::CompletionResponse::List(lsp::CompletionList {
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is_incomplete,
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items,
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}))
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}
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}
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/// When the specifier is an empty string, return all the keys from the import
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/// map as completion items.
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fn get_base_import_map_completions(
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import_map: &ImportMap,
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) -> Vec<lsp::CompletionItem> {
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import_map
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.imports()
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.keys()
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.map(|key| {
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// for some strange reason, keys that start with `/` get stored in the
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// import map as `file:///`, and so when we pull the keys out, we need to
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// change the behavior
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let mut label = if key.starts_with("file://") {
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FILE_PROTO_RE.replace(key, "").to_string()
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} else {
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key.to_string()
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};
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let kind = if key.ends_with('/') {
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label.pop();
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Some(lsp::CompletionItemKind::FOLDER)
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} else {
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Some(lsp::CompletionItemKind::FILE)
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};
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lsp::CompletionItem {
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label: label.clone(),
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kind,
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detail: Some("(import map)".to_string()),
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sort_text: Some(label.clone()),
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insert_text: Some(label),
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commit_characters: Some(
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IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
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),
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..Default::default()
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}
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})
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.collect()
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}
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/// Given an existing specifier, return any completions that could apply derived
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/// from the import map. There are two main type of import map keys, those that
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/// a literal, which don't end in `/`, which expects a one for one replacement
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/// of specifier to specifier, and then those that end in `/` which indicates
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/// that the path post the `/` should be appended to resolved specifier. This
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/// handles both cases, pulling any completions from the workspace completions.
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fn get_import_map_completions(
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specifier: &ModuleSpecifier,
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text: &str,
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range: &lsp::Range,
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maybe_import_map: Option<Arc<ImportMap>>,
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documents: &Documents,
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) -> Option<lsp::CompletionList> {
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if !text.is_empty() {
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if let Some(import_map) = maybe_import_map {
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let mut items = Vec::new();
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for key in import_map.imports().keys() {
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// for some reason, the import_map stores keys that begin with `/` as
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// `file:///` in its index, so we have to reverse that here
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let key = if key.starts_with("file://") {
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FILE_PROTO_RE.replace(key, "").to_string()
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} else {
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key.to_string()
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};
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if text.starts_with(&key) && key.ends_with('/') {
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if let Ok(resolved) = import_map.resolve(&key, specifier) {
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let resolved = resolved.to_string();
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let workspace_items: Vec<lsp::CompletionItem> = documents
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.documents(DocumentsFilter::AllDiagnosable)
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.into_iter()
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.filter_map(|d| {
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let specifier_str = d.specifier().to_string();
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let new_text = specifier_str.replace(&resolved, &key);
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if specifier_str.starts_with(&resolved) {
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let label = specifier_str.replace(&resolved, "");
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let text_edit =
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Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
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range: *range,
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new_text: new_text.clone(),
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}));
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Some(lsp::CompletionItem {
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label,
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kind: Some(lsp::CompletionItemKind::MODULE),
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detail: Some("(import map)".to_string()),
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sort_text: Some("1".to_string()),
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filter_text: Some(new_text),
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text_edit,
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commit_characters: Some(
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IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
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),
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..Default::default()
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})
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} else {
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None
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}
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})
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.collect();
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items.extend(workspace_items);
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}
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} else if key.starts_with(text) && text != key {
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let mut label = key.to_string();
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let kind = if key.ends_with('/') {
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label.pop();
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Some(lsp::CompletionItemKind::FOLDER)
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} else {
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Some(lsp::CompletionItemKind::MODULE)
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};
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let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
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range: *range,
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new_text: label.clone(),
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}));
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items.push(lsp::CompletionItem {
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label,
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kind,
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detail: Some("(import map)".to_string()),
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sort_text: Some("1".to_string()),
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text_edit,
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commit_characters: Some(
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IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
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),
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..Default::default()
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});
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}
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if !items.is_empty() {
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return Some(lsp::CompletionList {
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items,
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is_incomplete: false,
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});
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}
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}
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}
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}
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None
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}
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/// Return local completions that are relative to the base specifier.
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fn get_local_completions(
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base: &ModuleSpecifier,
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current: &str,
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range: &lsp::Range,
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) -> Option<Vec<lsp::CompletionItem>> {
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if base.scheme() != "file" {
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return None;
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}
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let mut base_path = specifier_to_file_path(base).ok()?;
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base_path.pop();
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let mut current_path = normalize_path(base_path.join(current));
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// if the current text does not end in a `/` then we are still selecting on
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// the parent and should show all completions from there.
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let is_parent = if !current.ends_with('/') {
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current_path.pop();
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true
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} else {
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false
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};
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let cwd = std::env::current_dir().ok()?;
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if current_path.is_dir() {
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let items = std::fs::read_dir(current_path).ok()?;
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Some(
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items
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.filter_map(|de| {
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let de = de.ok()?;
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let label = de.path().file_name()?.to_string_lossy().to_string();
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let entry_specifier = resolve_path(de.path().to_str()?, &cwd).ok()?;
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if &entry_specifier == base {
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return None;
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}
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let full_text = relative_specifier(base, &entry_specifier)?;
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// this weeds out situations where we are browsing in the parent, but
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// we want to filter out non-matches when the completion is manually
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// invoked by the user, but still allows for things like `../src/../`
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// which is silly, but no reason to not allow it.
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if is_parent && !full_text.starts_with(current) {
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return None;
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}
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let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
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range: *range,
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new_text: full_text.clone(),
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}));
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let filter_text = if full_text.starts_with(current) {
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Some(full_text)
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} else {
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Some(format!("{current}{label}"))
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};
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match de.file_type() {
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Ok(file_type) if file_type.is_dir() => Some(lsp::CompletionItem {
|
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label,
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kind: Some(lsp::CompletionItemKind::FOLDER),
|
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filter_text,
|
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sort_text: Some("1".to_string()),
|
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text_edit,
|
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commit_characters: Some(
|
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IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
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),
|
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..Default::default()
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}),
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Ok(file_type) if file_type.is_file() => {
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if is_supported_ext(&de.path()) {
|
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Some(lsp::CompletionItem {
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label,
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kind: Some(lsp::CompletionItemKind::FILE),
|
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detail: Some("(local)".to_string()),
|
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filter_text,
|
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sort_text: Some("1".to_string()),
|
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text_edit,
|
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commit_characters: Some(
|
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IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
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),
|
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..Default::default()
|
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})
|
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} else {
|
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None
|
|
}
|
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}
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_ => None,
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}
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})
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.collect(),
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)
|
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} else {
|
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None
|
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}
|
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}
|
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|
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fn get_relative_specifiers(
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base: &ModuleSpecifier,
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specifiers: Vec<ModuleSpecifier>,
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) -> Vec<String> {
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specifiers
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.iter()
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.filter_map(|s| {
|
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if s != base {
|
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Some(relative_specifier(base, s).unwrap_or_else(|| s.to_string()))
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} else {
|
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None
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}
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})
|
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.collect()
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}
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|
|
/// Get workspace completions that include modules in the Deno cache which match
|
|
/// the current specifier string.
|
|
fn get_workspace_completions(
|
|
specifier: &ModuleSpecifier,
|
|
current: &str,
|
|
range: &lsp::Range,
|
|
documents: &Documents,
|
|
) -> Vec<lsp::CompletionItem> {
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|
let workspace_specifiers = documents
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.documents(DocumentsFilter::AllDiagnosable)
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.into_iter()
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.map(|d| d.specifier().clone())
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.collect();
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let specifier_strings =
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get_relative_specifiers(specifier, workspace_specifiers);
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specifier_strings
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.into_iter()
|
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.filter_map(|label| {
|
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if label.starts_with(current) {
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let detail = Some(
|
|
if label.starts_with("http:") || label.starts_with("https:") {
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"(remote)".to_string()
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} else if label.starts_with("data:") {
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"(data)".to_string()
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} else {
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"(local)".to_string()
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},
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);
|
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let text_edit = Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
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range: *range,
|
|
new_text: label.clone(),
|
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}));
|
|
Some(lsp::CompletionItem {
|
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label,
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kind: Some(lsp::CompletionItemKind::FILE),
|
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detail,
|
|
sort_text: Some("1".to_string()),
|
|
text_edit,
|
|
commit_characters: Some(
|
|
IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect(),
|
|
),
|
|
..Default::default()
|
|
})
|
|
} else {
|
|
None
|
|
}
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use crate::cache::HttpCache;
|
|
use crate::lsp::documents::Documents;
|
|
use crate::lsp::documents::LanguageId;
|
|
use deno_core::resolve_url;
|
|
use deno_graph::Range;
|
|
use std::collections::HashMap;
|
|
use std::path::Path;
|
|
use test_util::TempDir;
|
|
|
|
fn mock_documents(
|
|
fixtures: &[(&str, &str, i32, LanguageId)],
|
|
source_fixtures: &[(&str, &str)],
|
|
location: &Path,
|
|
) -> Documents {
|
|
let mut documents = Documents::new(location);
|
|
for (specifier, source, version, language_id) in fixtures {
|
|
let specifier =
|
|
resolve_url(specifier).expect("failed to create specifier");
|
|
documents.open(specifier, *version, *language_id, (*source).into());
|
|
}
|
|
let http_cache = HttpCache::new(location);
|
|
for (specifier, source) in source_fixtures {
|
|
let specifier =
|
|
resolve_url(specifier).expect("failed to create specifier");
|
|
http_cache
|
|
.set(&specifier, HashMap::default(), source.as_bytes())
|
|
.expect("could not cache file");
|
|
assert!(
|
|
documents.get(&specifier).is_some(),
|
|
"source could not be setup"
|
|
);
|
|
}
|
|
documents
|
|
}
|
|
|
|
fn setup(
|
|
temp_dir: &TempDir,
|
|
documents: &[(&str, &str, i32, LanguageId)],
|
|
sources: &[(&str, &str)],
|
|
) -> Documents {
|
|
let location = temp_dir.path().join("deps");
|
|
mock_documents(documents, sources, &location)
|
|
}
|
|
|
|
#[test]
|
|
fn test_get_relative_specifiers() {
|
|
let base = resolve_url("file:///a/b/c.ts").unwrap();
|
|
let specifiers = vec![
|
|
resolve_url("file:///a/b/c.ts").unwrap(),
|
|
resolve_url("file:///a/b/d.ts").unwrap(),
|
|
resolve_url("file:///a/c/c.ts").unwrap(),
|
|
resolve_url("file:///a/b/d/d.ts").unwrap(),
|
|
resolve_url("https://deno.land/x/a/b/c.ts").unwrap(),
|
|
];
|
|
assert_eq!(
|
|
get_relative_specifiers(&base, specifiers),
|
|
vec![
|
|
"./d.ts".to_string(),
|
|
"../c/c.ts".to_string(),
|
|
"./d/d.ts".to_string(),
|
|
"https://deno.land/x/a/b/c.ts".to_string(),
|
|
]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_get_local_completions() {
|
|
let temp_dir = TempDir::new();
|
|
let fixtures = temp_dir.path().join("fixtures");
|
|
std::fs::create_dir(&fixtures).expect("could not create");
|
|
let dir_a = fixtures.join("a");
|
|
std::fs::create_dir(&dir_a).expect("could not create");
|
|
let dir_b = dir_a.join("b");
|
|
std::fs::create_dir(&dir_b).expect("could not create");
|
|
let file_c = dir_a.join("c.ts");
|
|
std::fs::write(&file_c, b"").expect("could not create");
|
|
let file_d = dir_b.join("d.ts");
|
|
std::fs::write(file_d, b"").expect("could not create");
|
|
let file_e = dir_a.join("e.txt");
|
|
std::fs::write(file_e, b"").expect("could not create");
|
|
let file_f = dir_a.join("f.mjs");
|
|
std::fs::write(file_f, b"").expect("could not create");
|
|
let specifier =
|
|
ModuleSpecifier::from_file_path(file_c).expect("could not create");
|
|
let actual = get_local_completions(
|
|
&specifier,
|
|
"./",
|
|
&lsp::Range {
|
|
start: lsp::Position {
|
|
line: 0,
|
|
character: 20,
|
|
},
|
|
end: lsp::Position {
|
|
line: 0,
|
|
character: 22,
|
|
},
|
|
},
|
|
);
|
|
assert!(actual.is_some());
|
|
let actual = actual.unwrap();
|
|
assert_eq!(actual.len(), 2);
|
|
for item in actual {
|
|
match item.text_edit {
|
|
Some(lsp::CompletionTextEdit::Edit(text_edit)) => {
|
|
assert!(
|
|
text_edit.new_text == "./f.mjs" || text_edit.new_text == "./b"
|
|
);
|
|
}
|
|
_ => unreachable!(),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn test_get_workspace_completions() {
|
|
let specifier = resolve_url("file:///a/b/c.ts").unwrap();
|
|
let range = lsp::Range {
|
|
start: lsp::Position {
|
|
line: 0,
|
|
character: 20,
|
|
},
|
|
end: lsp::Position {
|
|
line: 0,
|
|
character: 21,
|
|
},
|
|
};
|
|
let temp_dir = TempDir::new();
|
|
let documents = setup(
|
|
&temp_dir,
|
|
&[
|
|
(
|
|
"file:///a/b/c.ts",
|
|
"import * as d from \"h\"",
|
|
1,
|
|
LanguageId::TypeScript,
|
|
),
|
|
("file:///a/c.ts", r#""#, 1, LanguageId::TypeScript),
|
|
],
|
|
&[("https://deno.land/x/a/b/c.ts", "console.log(1);\n")],
|
|
);
|
|
let actual = get_workspace_completions(&specifier, "h", &range, &documents);
|
|
assert_eq!(
|
|
actual,
|
|
vec![lsp::CompletionItem {
|
|
label: "https://deno.land/x/a/b/c.ts".to_string(),
|
|
kind: Some(lsp::CompletionItemKind::FILE),
|
|
detail: Some("(remote)".to_string()),
|
|
sort_text: Some("1".to_string()),
|
|
text_edit: Some(lsp::CompletionTextEdit::Edit(lsp::TextEdit {
|
|
range: lsp::Range {
|
|
start: lsp::Position {
|
|
line: 0,
|
|
character: 20
|
|
},
|
|
end: lsp::Position {
|
|
line: 0,
|
|
character: 21,
|
|
}
|
|
},
|
|
new_text: "https://deno.land/x/a/b/c.ts".to_string(),
|
|
})),
|
|
commit_characters: Some(
|
|
IMPORT_COMMIT_CHARS.iter().map(|&c| c.into()).collect()
|
|
),
|
|
..Default::default()
|
|
}]
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_to_narrow_lsp_range() {
|
|
let text_info = SourceTextInfo::from_string(r#""te""#.to_string());
|
|
let range = to_narrow_lsp_range(
|
|
&text_info,
|
|
&Range {
|
|
specifier: ModuleSpecifier::parse("https://deno.land").unwrap(),
|
|
start: deno_graph::Position {
|
|
line: 0,
|
|
character: 0,
|
|
},
|
|
end: deno_graph::Position {
|
|
line: 0,
|
|
character: text_info.text_str().chars().count(),
|
|
},
|
|
},
|
|
);
|
|
assert_eq!(range.start.character, 1);
|
|
assert_eq!(
|
|
range.end.character,
|
|
(text_info.text_str().chars().count() - 1) as u32
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_to_narrow_lsp_range_no_trailing_quote() {
|
|
let text_info = SourceTextInfo::from_string(r#""te"#.to_string());
|
|
let range = to_narrow_lsp_range(
|
|
&text_info,
|
|
&Range {
|
|
specifier: ModuleSpecifier::parse("https://deno.land").unwrap(),
|
|
start: deno_graph::Position {
|
|
line: 0,
|
|
character: 0,
|
|
},
|
|
end: deno_graph::Position {
|
|
line: 0,
|
|
character: text_info.text_str().chars().count(),
|
|
},
|
|
},
|
|
);
|
|
assert_eq!(range.start.character, 1);
|
|
assert_eq!(
|
|
range.end.character,
|
|
text_info.text_str().chars().count() as u32
|
|
);
|
|
}
|
|
}
|