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Auto merge of #16261 - Veykril:import-map-fix, r=Veykril

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internal: Move query limits to the caller

Prior we calculated up to `limit` entries from a query, then filtered from that leaving us with less entries than the limit in some cases (which might give odd completion behavior due to items disappearing). This changes it so we filter before checking the limit.
This commit is contained in:
bors 2024-01-04 18:27:38 +00:00
commit c84352a346
10 changed files with 146 additions and 124 deletions
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65
crates/hir-def/src/import_map.rs
View file

@ -295,7 +295,6 @@ pub struct Query {
search_mode: SearchMode,
assoc_mode: AssocSearchMode,
case_sensitive: bool,
limit: usize,
}
impl Query {
@ -307,7 +306,6 @@ impl Query {
search_mode: SearchMode::Exact,
assoc_mode: AssocSearchMode::Include,
case_sensitive: false,
limit: usize::MAX,
}
}
@ -329,11 +327,6 @@ impl Query {
Self { assoc_mode, ..self }
}
/// Limits the returned number of items to `limit`.
pub fn limit(self, limit: usize) -> Self {
Self { limit, ..self }
}
/// Respect casing of the query string when matching.
pub fn case_sensitive(self) -> Self {
Self { case_sensitive: true, ..self }
@ -413,6 +406,7 @@ fn search_maps(
})
// we put all entries with the same lowercased name in a row, so stop once we find a
// different name in the importables
// FIXME: Consider putting a range into the value: u64 as (u32, u32)?
.take_while(|&(_, info, _)| {
info.name.to_smol_str().as_bytes().eq_ignore_ascii_case(&key)
})
@ -424,13 +418,32 @@ fn search_maps(
return true;
}
let name = info.name.to_smol_str();
// FIXME: Deduplicate this from ide-db
match query.search_mode {
SearchMode::Exact => name == query.query,
SearchMode::Prefix => name.starts_with(&query.query),
SearchMode::Exact => !query.case_sensitive || name == query.query,
SearchMode::Prefix => {
query.query.len() <= name.len() && {
let prefix = &name[..query.query.len() as usize];
if query.case_sensitive {
prefix == query.query
} else {
prefix.eq_ignore_ascii_case(&query.query)
}
}
}
SearchMode::Fuzzy => {
let mut name = &*name;
query.query.chars().all(|query_char| {
match name.match_indices(query_char).next() {
let m = if query.case_sensitive {
name.match_indices(query_char).next()
} else {
name.match_indices([
query_char,
query_char.to_ascii_uppercase(),
])
.next()
};
match m {
Some((index, _)) => {
name = &name[index + 1..];
true
@ -442,10 +455,6 @@ fn search_maps(
}
});
res.extend(iter.map(TupleExt::head));
if res.len() >= query.limit {
return res;
}
}
}
@ -1015,32 +1024,4 @@ pub mod fmt {
"#]],
);
}
#[test]
fn search_limit() {
check_search(
r#"
//- /main.rs crate:main deps:dep
//- /dep.rs crate:dep
pub mod fmt {
pub trait Display {
fn fmt();
}
}
#[macro_export]
macro_rules! Fmt {
() => {};
}
pub struct Fmt;
pub fn format() {}
pub fn no() {}
"#,
"main",
Query::new("".to_string()).fuzzy().limit(1),
expect![[r#"
dep::fmt::Display (t)
"#]],
);
}
}

2
crates/hir/src/symbols.rs
View file

@ -163,7 +163,7 @@ impl<'a> SymbolCollector<'a> {
}
// Record renamed imports.
// In case it imports multiple items under different namespaces we just pick one arbitrarily
// FIXME: In case it imports multiple items under different namespaces we just pick one arbitrarily
// for now.
for id in scope.imports() {
let loc = id.import.lookup(self.db.upcast());

1
crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs
View file

@ -74,7 +74,6 @@ pub(crate) fn replace_derive_with_manual_impl(
current_crate,
NameToImport::exact_case_sensitive(path.segments().last()?.to_string()),
items_locator::AssocSearchMode::Exclude,
Some(items_locator::DEFAULT_QUERY_SEARCH_LIMIT.inner()),
)
.filter_map(|item| match item.as_module_def()? {
ModuleDef::Trait(trait_) => Some(trait_),

1
crates/ide-completion/src/lib.rs
View file

@ -256,7 +256,6 @@ pub fn resolve_completion_edits(
current_crate,
NameToImport::exact_case_sensitive(imported_name),
items_locator::AssocSearchMode::Include,
Some(items_locator::DEFAULT_QUERY_SEARCH_LIMIT.inner()),
);
let import = items_with_name
.filter_map(|candidate| {

6
crates/ide-db/src/imports/import_assets.rs
View file

@ -333,12 +333,12 @@ fn path_applicable_imports(
//
// see also an ignored test under FIXME comment in the qualify_path.rs module
AssocSearchMode::Exclude,
Some(DEFAULT_QUERY_SEARCH_LIMIT.inner()),
)
.filter_map(|item| {
let mod_path = mod_path(item)?;
Some(LocatedImport::new(mod_path, item, item))
})
.take(DEFAULT_QUERY_SEARCH_LIMIT.inner())
.collect()
}
Some(qualifier) => items_locator::items_with_name(
@ -346,9 +346,9 @@ fn path_applicable_imports(
current_crate,
path_candidate.name.clone(),
AssocSearchMode::Include,
Some(DEFAULT_QUERY_SEARCH_LIMIT.inner()),
)
.filter_map(|item| import_for_item(sema.db, mod_path, &qualifier, item))
.take(DEFAULT_QUERY_SEARCH_LIMIT.inner())
.collect(),
}
}
@ -505,7 +505,6 @@ fn trait_applicable_items(
current_crate,
trait_candidate.assoc_item_name.clone(),
AssocSearchMode::AssocItemsOnly,
Some(DEFAULT_QUERY_SEARCH_LIMIT.inner()),
)
.filter_map(|input| item_as_assoc(db, input))
.filter_map(|assoc| {
@ -517,6 +516,7 @@ fn trait_applicable_items(
Some(assoc_item_trait.into())
}
})
.take(DEFAULT_QUERY_SEARCH_LIMIT.inner())
.collect();
let mut located_imports = FxHashSet::default();

37
crates/ide-db/src/items_locator.rs
View file

@ -19,26 +19,24 @@ pub fn items_with_name<'a>(
krate: Crate,
name: NameToImport,
assoc_item_search: AssocSearchMode,
limit: Option<usize>,
) -> impl Iterator<Item = ItemInNs> + 'a {
let _p = profile::span("items_with_name").detail(|| {
format!(
"Name: {}, crate: {:?}, assoc items: {:?}, limit: {:?}",
"Name: {}, crate: {:?}, assoc items: {:?}",
name.text(),
assoc_item_search,
krate.display_name(sema.db).map(|name| name.to_string()),
limit,
)
});
let prefix = matches!(name, NameToImport::Prefix(..));
let (mut local_query, mut external_query) = match name {
let (local_query, external_query) = match name {
NameToImport::Prefix(exact_name, case_sensitive)
| NameToImport::Exact(exact_name, case_sensitive) => {
let mut local_query = symbol_index::Query::new(exact_name.clone());
local_query.assoc_search_mode(assoc_item_search);
let mut external_query =
// import_map::Query::new(exact_name).assoc_search_mode(assoc_item_search);
import_map::Query::new(exact_name);
import_map::Query::new(exact_name).assoc_search_mode(assoc_item_search);
if prefix {
local_query.prefix();
external_query = external_query.prefix();
@ -55,6 +53,7 @@ pub fn items_with_name<'a>(
NameToImport::Fuzzy(fuzzy_search_string, case_sensitive) => {
let mut local_query = symbol_index::Query::new(fuzzy_search_string.clone());
local_query.fuzzy();
local_query.assoc_search_mode(assoc_item_search);
let mut external_query = import_map::Query::new(fuzzy_search_string.clone())
.fuzzy()
@ -69,18 +68,12 @@ pub fn items_with_name<'a>(
}
};
if let Some(limit) = limit {
external_query = external_query.limit(limit);
local_query.limit(limit);
}
find_items(sema, krate, assoc_item_search, local_query, external_query)
find_items(sema, krate, local_query, external_query)
}
fn find_items<'a>(
sema: &'a Semantics<'_, RootDatabase>,
krate: Crate,
assoc_item_search: AssocSearchMode,
local_query: symbol_index::Query,
external_query: import_map::Query,
) -> impl Iterator<Item = ItemInNs> + 'a {
@ -98,18 +91,12 @@ fn find_items<'a>(
});
// Query the local crate using the symbol index.
let local_results = local_query
.search(&symbol_index::crate_symbols(db, krate))
.into_iter()
.filter(move |candidate| match assoc_item_search {
AssocSearchMode::Include => true,
AssocSearchMode::Exclude => !candidate.is_assoc,
AssocSearchMode::AssocItemsOnly => candidate.is_assoc,
})
.map(|local_candidate| match local_candidate.def {
let mut local_results = Vec::new();
local_query.search(&symbol_index::crate_symbols(db, krate), |local_candidate| {
local_results.push(match local_candidate.def {
hir::ModuleDef::Macro(macro_def) => ItemInNs::Macros(macro_def),
def => ItemInNs::from(def),
});
external_importables.chain(local_results)
})
});
local_results.into_iter().chain(external_importables)
}

140
crates/ide-db/src/symbol_index.rs
View file

@ -31,9 +31,10 @@ use base_db::{
salsa::{self, ParallelDatabase},
SourceDatabaseExt, SourceRootId, Upcast,
};
use fst::{self, Streamer};
use fst::{self, raw::IndexedValue, Automaton, Streamer};
use hir::{
db::HirDatabase,
import_map::AssocSearchMode,
symbols::{FileSymbol, SymbolCollector},
Crate, Module,
};
@ -57,8 +58,8 @@ pub struct Query {
only_types: bool,
libs: bool,
mode: SearchMode,
assoc_mode: AssocSearchMode,
case_sensitive: bool,
limit: usize,
}
impl Query {
@ -70,8 +71,8 @@ impl Query {
only_types: false,
libs: false,
mode: SearchMode::Fuzzy,
assoc_mode: AssocSearchMode::Include,
case_sensitive: false,
limit: usize::max_value(),
}
}
@ -95,12 +96,13 @@ impl Query {
self.mode = SearchMode::Prefix;
}
pub fn case_sensitive(&mut self) {
self.case_sensitive = true;
/// Specifies whether we want to include associated items in the result.
pub fn assoc_search_mode(&mut self, assoc_mode: AssocSearchMode) {
self.assoc_mode = assoc_mode;
}
pub fn limit(&mut self, limit: usize) {
self.limit = limit
pub fn case_sensitive(&mut self) {
self.case_sensitive = true;
}
}
@ -225,7 +227,9 @@ pub fn world_symbols(db: &RootDatabase, query: Query) -> Vec<FileSymbol> {
indices.iter().flat_map(|indices| indices.iter().cloned()).collect()
};
query.search(&indices)
let mut res = vec![];
query.search(&indices, |f| res.push(f.clone()));
res
}
#[derive(Default)]
@ -285,6 +289,7 @@ impl SymbolIndex {
builder.insert(key, value).unwrap();
}
// FIXME: fst::Map should ideally have a way to shrink the backing buffer without the unwrap dance
let map = fst::Map::new({
let mut buf = builder.into_inner().unwrap();
buf.shrink_to_fit();
@ -317,22 +322,54 @@ impl SymbolIndex {
}
impl Query {
pub(crate) fn search(self, indices: &[Arc<SymbolIndex>]) -> Vec<FileSymbol> {
pub(crate) fn search<'sym>(
self,
indices: &'sym [Arc<SymbolIndex>],
cb: impl FnMut(&'sym FileSymbol),
) {
let _p = profile::span("symbol_index::Query::search");
let mut op = fst::map::OpBuilder::new();
for file_symbols in indices.iter() {
let automaton = fst::automaton::Subsequence::new(&self.lowercased);
op = op.add(file_symbols.map.search(automaton))
match self.mode {
SearchMode::Exact => {
let automaton = fst::automaton::Str::new(&self.lowercased);
for index in indices.iter() {
op = op.add(index.map.search(&automaton));
}
self.search_maps(&indices, op.union(), cb)
}
SearchMode::Fuzzy => {
let automaton = fst::automaton::Subsequence::new(&self.lowercased);
for index in indices.iter() {
op = op.add(index.map.search(&automaton));
}
self.search_maps(&indices, op.union(), cb)
}
SearchMode::Prefix => {
let automaton = fst::automaton::Str::new(&self.lowercased).starts_with();
for index in indices.iter() {
op = op.add(index.map.search(&automaton));
}
self.search_maps(&indices, op.union(), cb)
}
}
let mut stream = op.union();
let mut res = Vec::new();
}
fn search_maps<'sym>(
&self,
indices: &'sym [Arc<SymbolIndex>],
mut stream: fst::map::Union<'_>,
mut cb: impl FnMut(&'sym FileSymbol),
) {
while let Some((_, indexed_values)) = stream.next() {
for indexed_value in indexed_values {
let symbol_index = &indices[indexed_value.index];
let (start, end) = SymbolIndex::map_value_to_range(indexed_value.value);
for &IndexedValue { index, value } in indexed_values {
let symbol_index = &indices[index];
let (start, end) = SymbolIndex::map_value_to_range(value);
for symbol in &symbol_index.symbols[start..end] {
if self.only_types
let non_type_for_type_only_query = self.only_types
&& !matches!(
symbol.def,
hir::ModuleDef::Adt(..)
@ -340,38 +377,59 @@ impl Query {
| hir::ModuleDef::BuiltinType(..)
| hir::ModuleDef::TraitAlias(..)
| hir::ModuleDef::Trait(..)
)
{
);
if non_type_for_type_only_query || !self.matches_assoc_mode(symbol.is_assoc) {
continue;
}
let skip = match self.mode {
// FIXME: Deduplicate this from hir-def
let matches = match self.mode {
SearchMode::Exact if self.case_sensitive => symbol.name == self.query,
SearchMode::Exact => symbol.name.eq_ignore_ascii_case(&self.query),
SearchMode::Prefix => {
self.query.len() <= symbol.name.len() && {
let prefix = &symbol.name[..self.query.len() as usize];
if self.case_sensitive {
prefix == self.query
} else {
prefix.eq_ignore_ascii_case(&self.query)
}
}
}
SearchMode::Fuzzy => {
self.case_sensitive
&& self.query.chars().any(|c| !symbol.name.contains(c))
let mut name = &*symbol.name;
self.query.chars().all(|query_char| {
let m = if self.case_sensitive {
name.match_indices(query_char).next()
} else {
name.match_indices([
query_char,
query_char.to_ascii_uppercase(),
])
.next()
};
match m {
Some((index, _)) => {
name = &name[index + 1..];
true
}
None => false,
}
})
}
SearchMode::Exact => symbol.name != self.query,
SearchMode::Prefix if self.case_sensitive => {
!symbol.name.starts_with(&self.query)
}
SearchMode::Prefix => symbol
.name
.chars()
.zip(self.lowercased.chars())
.all(|(n, q)| n.to_lowercase().next() == Some(q)),
};
if skip {
continue;
}
res.push(symbol.clone());
if res.len() >= self.limit {
return res;
if matches {
cb(symbol);
}
}
}
}
res
}
fn matches_assoc_mode(&self, is_trait_assoc_item: bool) -> bool {
match (is_trait_assoc_item, self.assoc_mode) {
(true, AssocSearchMode::Exclude) | (false, AssocSearchMode::AssocItemsOnly) => false,
_ => true,
}
}
}

3
crates/ide/src/lib.rs
View file

@ -414,11 +414,12 @@ impl Analysis {
}
/// Fuzzy searches for a symbol.
pub fn symbol_search(&self, query: Query) -> Cancellable<Vec<NavigationTarget>> {
pub fn symbol_search(&self, query: Query, limit: usize) -> Cancellable<Vec<NavigationTarget>> {
self.with_db(|db| {
symbol_index::world_symbols(db, query)
.into_iter() // xx: should we make this a par iter?
.filter_map(|s| s.try_to_nav(db))
.take(limit)
.map(UpmappingResult::call_site)
.collect::<Vec<_>>()
})

4
crates/ide/src/navigation_target.rs
View file

@ -860,7 +860,7 @@ fn foo() { enum FooInner { } }
"#,
);
let navs = analysis.symbol_search(Query::new("FooInner".to_string())).unwrap();
let navs = analysis.symbol_search(Query::new("FooInner".to_string()), !0).unwrap();
expect![[r#"
[
NavigationTarget {
@ -898,7 +898,7 @@ struct Foo;
"#,
);
let navs = analysis.symbol_search(Query::new("foo".to_string())).unwrap();
let navs = analysis.symbol_search(Query::new("foo".to_string()), !0).unwrap();
assert_eq!(navs.len(), 2)
}
}

11
crates/rust-analyzer/src/handlers/request.rs
View file

@ -458,7 +458,6 @@ pub(crate) fn handle_workspace_symbol(
let config = snap.config.workspace_symbol();
let (all_symbols, libs) = decide_search_scope_and_kind(&params, &config);
let limit = config.search_limit;
let query = {
let query: String = params.query.chars().filter(|&c| c != '#' && c != '*').collect();
@ -469,14 +468,11 @@ pub(crate) fn handle_workspace_symbol(
if libs {
q.libs();
}
q.limit(limit);
q
};
let mut res = exec_query(&snap, query)?;
let mut res = exec_query(&snap, query, config.search_limit)?;
if res.is_empty() && !all_symbols {
let mut query = Query::new(params.query);
query.limit(limit);
res = exec_query(&snap, query)?;
res = exec_query(&snap, Query::new(params.query), config.search_limit)?;
}
return Ok(Some(lsp_types::WorkspaceSymbolResponse::Nested(res)));
@ -519,9 +515,10 @@ pub(crate) fn handle_workspace_symbol(
fn exec_query(
snap: &GlobalStateSnapshot,
query: Query,
limit: usize,
) -> anyhow::Result<Vec<lsp_types::WorkspaceSymbol>> {
let mut res = Vec::new();
for nav in snap.analysis.symbol_search(query)? {
for nav in snap.analysis.symbol_search(query, limit)? {
let container_name = nav.container_name.as_ref().map(|v| v.to_string());
let info = lsp_types::WorkspaceSymbol {