Unnamed repository; edit this file 'description' to name the repository.
Auto merge of #15871 - Veykril:import-map, r=Veykril
Add config for preferring / ignoring prelude modules in find_path
bors 2023-11-11
parent 11a87c9 · parent 74e5444 · commit 5fcf528
-rw-r--r--crates/hir-def/src/find_path.rs173
-rw-r--r--crates/hir-def/src/import_map.rs232
-rw-r--r--crates/hir-def/src/lib.rs2
-rw-r--r--crates/hir-ty/src/display.rs1
-rw-r--r--crates/hir/src/lib.rs11
-rw-r--r--crates/ide-assists/src/assist_config.rs1
-rw-r--r--crates/ide-assists/src/handlers/add_missing_match_arms.rs33
-rw-r--r--crates/ide-assists/src/handlers/auto_import.rs1
-rw-r--r--crates/ide-assists/src/handlers/bool_to_enum.rs1
-rw-r--r--crates/ide-assists/src/handlers/convert_into_to_from.rs7
-rw-r--r--crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs1
-rw-r--r--crates/ide-assists/src/handlers/extract_function.rs1
-rw-r--r--crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs1
-rw-r--r--crates/ide-assists/src/handlers/generate_deref.rs16
-rw-r--r--crates/ide-assists/src/handlers/generate_new.rs1
-rw-r--r--crates/ide-assists/src/handlers/qualify_method_call.rs1
-rw-r--r--crates/ide-assists/src/handlers/qualify_path.rs7
-rw-r--r--crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs7
-rw-r--r--crates/ide-assists/src/handlers/replace_qualified_name_with_use.rs1
-rw-r--r--crates/ide-assists/src/tests.rs2
-rw-r--r--crates/ide-completion/src/completions.rs1
-rw-r--r--crates/ide-completion/src/completions/expr.rs2
-rw-r--r--crates/ide-completion/src/completions/flyimport.rs21
-rw-r--r--crates/ide-completion/src/config.rs1
-rw-r--r--crates/ide-completion/src/lib.rs1
-rw-r--r--crates/ide-completion/src/snippet.rs1
-rw-r--r--crates/ide-completion/src/tests.rs1
-rw-r--r--crates/ide-db/src/imports/import_assets.rs19
-rw-r--r--crates/ide-db/src/path_transform.rs9
-rw-r--r--crates/ide-diagnostics/src/handlers/json_is_not_rust.rs2
-rw-r--r--crates/ide-diagnostics/src/handlers/missing_fields.rs1
-rw-r--r--crates/ide-diagnostics/src/lib.rs2
-rw-r--r--crates/ide-ssr/src/matching.rs2
-rw-r--r--crates/rust-analyzer/src/cli/analysis_stats.rs3
-rw-r--r--crates/rust-analyzer/src/config.rs5
-rw-r--r--crates/rust-analyzer/src/integrated_benchmarks.rs2
-rw-r--r--docs/user/generated_config.adoc5
-rw-r--r--editors/code/package.json5
38 files changed, 403 insertions, 180 deletions
diff --git a/crates/hir-def/src/find_path.rs b/crates/hir-def/src/find_path.rs
index b9c5ff7279..1ebd1ba0e6 100644
--- a/crates/hir-def/src/find_path.rs
+++ b/crates/hir-def/src/find_path.rs
@@ -21,9 +21,10 @@ pub fn find_path(
item: ItemInNs,
from: ModuleId,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<ModPath> {
let _p = profile::span("find_path");
- find_path_inner(db, item, from, None, prefer_no_std)
+ find_path_inner(db, item, from, None, prefer_no_std, prefer_prelude)
}
pub fn find_path_prefixed(
@@ -32,9 +33,10 @@ pub fn find_path_prefixed(
from: ModuleId,
prefix_kind: PrefixKind,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<ModPath> {
let _p = profile::span("find_path_prefixed");
- find_path_inner(db, item, from, Some(prefix_kind), prefer_no_std)
+ find_path_inner(db, item, from, Some(prefix_kind), prefer_no_std, prefer_prelude)
}
#[derive(Copy, Clone, Debug)]
@@ -88,6 +90,7 @@ fn find_path_inner(
from: ModuleId,
prefixed: Option<PrefixKind>,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<ModPath> {
// - if the item is a builtin, it's in scope
if let ItemInNs::Types(ModuleDefId::BuiltinType(builtin)) = item {
@@ -109,6 +112,7 @@ fn find_path_inner(
MAX_PATH_LEN,
prefixed,
prefer_no_std || db.crate_supports_no_std(crate_root.krate),
+ prefer_prelude,
)
.map(|(item, _)| item);
}
@@ -134,6 +138,7 @@ fn find_path_inner(
from,
prefixed,
prefer_no_std,
+ prefer_prelude,
) {
let data = db.enum_data(variant.parent);
path.push_segment(data.variants[variant.local_id].name.clone());
@@ -156,6 +161,7 @@ fn find_path_inner(
from,
prefixed,
prefer_no_std || db.crate_supports_no_std(crate_root.krate),
+ prefer_prelude,
scope_name,
)
.map(|(item, _)| item)
@@ -171,6 +177,7 @@ fn find_path_for_module(
max_len: usize,
prefixed: Option<PrefixKind>,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<(ModPath, Stability)> {
if max_len == 0 {
return None;
@@ -236,6 +243,7 @@ fn find_path_for_module(
from,
prefixed,
prefer_no_std,
+ prefer_prelude,
scope_name,
)
}
@@ -316,6 +324,7 @@ fn calculate_best_path(
from: ModuleId,
mut prefixed: Option<PrefixKind>,
prefer_no_std: bool,
+ prefer_prelude: bool,
scope_name: Option<Name>,
) -> Option<(ModPath, Stability)> {
if max_len <= 1 {
@@ -351,11 +360,14 @@ fn calculate_best_path(
best_path_len - 1,
prefixed,
prefer_no_std,
+ prefer_prelude,
) {
path.0.push_segment(name);
let new_path = match best_path.take() {
- Some(best_path) => select_best_path(best_path, path, prefer_no_std),
+ Some(best_path) => {
+ select_best_path(best_path, path, prefer_no_std, prefer_prelude)
+ }
None => path,
};
best_path_len = new_path.0.len();
@@ -367,18 +379,18 @@ fn calculate_best_path(
// too (unless we can't name it at all). It could *also* be (re)exported by the same crate
// that wants to import it here, but we always prefer to use the external path here.
- let crate_graph = db.crate_graph();
- let extern_paths = crate_graph[from.krate].dependencies.iter().filter_map(|dep| {
+ for dep in &db.crate_graph()[from.krate].dependencies {
let import_map = db.import_map(dep.crate_id);
- import_map.import_info_for(item).and_then(|info| {
+ let Some(import_info_for) = import_map.import_info_for(item) else { continue };
+ for info in import_info_for {
if info.is_doc_hidden {
// the item or import is `#[doc(hidden)]`, so skip it as it is in an external crate
- return None;
+ continue;
}
// Determine best path for containing module and append last segment from `info`.
// FIXME: we should guide this to look up the path locally, or from the same crate again?
- let (mut path, path_stability) = find_path_for_module(
+ let Some((mut path, path_stability)) = find_path_for_module(
db,
def_map,
visited_modules,
@@ -388,22 +400,26 @@ fn calculate_best_path(
max_len - 1,
prefixed,
prefer_no_std,
- )?;
+ prefer_prelude,
+ ) else {
+ continue;
+ };
cov_mark::hit!(partially_imported);
path.push_segment(info.name.clone());
- Some((
+
+ let path_with_stab = (
path,
zip_stability(path_stability, if info.is_unstable { Unstable } else { Stable }),
- ))
- })
- });
+ );
- for path in extern_paths {
- let new_path = match best_path.take() {
- Some(best_path) => select_best_path(best_path, path, prefer_no_std),
- None => path,
- };
- update_best_path(&mut best_path, new_path);
+ let new_path_with_stab = match best_path.take() {
+ Some(best_path) => {
+ select_best_path(best_path, path_with_stab, prefer_no_std, prefer_prelude)
+ }
+ None => path_with_stab,
+ };
+ update_best_path(&mut best_path, new_path_with_stab);
+ }
}
}
if let Some(module) = item.module(db) {
@@ -420,17 +436,39 @@ fn calculate_best_path(
}
}
+/// Select the best (most relevant) path between two paths.
+/// This accounts for stability, path length whether std should be chosen over alloc/core paths as
+/// well as ignoring prelude like paths or not.
fn select_best_path(
- old_path: (ModPath, Stability),
- new_path: (ModPath, Stability),
+ old_path @ (_, old_stability): (ModPath, Stability),
+ new_path @ (_, new_stability): (ModPath, Stability),
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> (ModPath, Stability) {
- match (old_path.1, new_path.1) {
+ match (old_stability, new_stability) {
(Stable, Unstable) => return old_path,
(Unstable, Stable) => return new_path,
_ => {}
}
const STD_CRATES: [Name; 3] = [known::std, known::core, known::alloc];
+
+ let choose = |new_path: (ModPath, _), old_path: (ModPath, _)| {
+ let new_has_prelude = new_path.0.segments().iter().any(|seg| seg == &known::prelude);
+ let old_has_prelude = old_path.0.segments().iter().any(|seg| seg == &known::prelude);
+ match (new_has_prelude, old_has_prelude, prefer_prelude) {
+ (true, false, true) | (false, true, false) => new_path,
+ (true, false, false) | (false, true, true) => old_path,
+ // no prelude difference in the paths, so pick the smaller one
+ (true, true, _) | (false, false, _) => {
+ if new_path.0.len() < old_path.0.len() {
+ new_path
+ } else {
+ old_path
+ }
+ }
+ }
+ };
+
match (old_path.0.segments().first(), new_path.0.segments().first()) {
(Some(old), Some(new)) if STD_CRATES.contains(old) && STD_CRATES.contains(new) => {
let rank = match prefer_no_std {
@@ -451,23 +489,11 @@ fn select_best_path(
let orank = rank(old);
match nrank.cmp(&orank) {
Ordering::Less => old_path,
- Ordering::Equal => {
- if new_path.0.len() < old_path.0.len() {
- new_path
- } else {
- old_path
- }
- }
+ Ordering::Equal => choose(new_path, old_path),
Ordering::Greater => new_path,
}
}
- _ => {
- if new_path.0.len() < old_path.0.len() {
- new_path
- } else {
- old_path
- }
- }
+ _ => choose(new_path, old_path),
}
}
@@ -570,7 +596,13 @@ mod tests {
/// `code` needs to contain a cursor marker; checks that `find_path` for the
/// item the `path` refers to returns that same path when called from the
/// module the cursor is in.
- fn check_found_path_(ra_fixture: &str, path: &str, prefix_kind: Option<PrefixKind>) {
+ #[track_caller]
+ fn check_found_path_(
+ ra_fixture: &str,
+ path: &str,
+ prefix_kind: Option<PrefixKind>,
+ prefer_prelude: bool,
+ ) {
let (db, pos) = TestDB::with_position(ra_fixture);
let module = db.module_at_position(pos);
let parsed_path_file = syntax::SourceFile::parse(&format!("use {path};"));
@@ -589,11 +621,17 @@ mod tests {
)
.0
.take_types()
- .unwrap();
-
- let found_path =
- find_path_inner(&db, ItemInNs::Types(resolved), module, prefix_kind, false);
- assert_eq!(found_path, Some(mod_path), "{prefix_kind:?}");
+ .expect("path does not resolve to a type");
+
+ let found_path = find_path_inner(
+ &db,
+ ItemInNs::Types(resolved),
+ module,
+ prefix_kind,
+ false,
+ prefer_prelude,
+ );
+ assert_eq!(found_path, Some(mod_path), "on kind: {prefix_kind:?}");
}
fn check_found_path(
@@ -603,10 +641,23 @@ mod tests {
absolute: &str,
self_prefixed: &str,
) {
- check_found_path_(ra_fixture, unprefixed, None);
- check_found_path_(ra_fixture, prefixed, Some(PrefixKind::Plain));
- check_found_path_(ra_fixture, absolute, Some(PrefixKind::ByCrate));
- check_found_path_(ra_fixture, self_prefixed, Some(PrefixKind::BySelf));
+ check_found_path_(ra_fixture, unprefixed, None, false);
+ check_found_path_(ra_fixture, prefixed, Some(PrefixKind::Plain), false);
+ check_found_path_(ra_fixture, absolute, Some(PrefixKind::ByCrate), false);
+ check_found_path_(ra_fixture, self_prefixed, Some(PrefixKind::BySelf), false);
+ }
+
+ fn check_found_path_prelude(
+ ra_fixture: &str,
+ unprefixed: &str,
+ prefixed: &str,
+ absolute: &str,
+ self_prefixed: &str,
+ ) {
+ check_found_path_(ra_fixture, unprefixed, None, true);
+ check_found_path_(ra_fixture, prefixed, Some(PrefixKind::Plain), true);
+ check_found_path_(ra_fixture, absolute, Some(PrefixKind::ByCrate), true);
+ check_found_path_(ra_fixture, self_prefixed, Some(PrefixKind::BySelf), true);
}
#[test]
@@ -1421,4 +1472,34 @@ pub mod error {
"std::error::Error",
);
}
+
+ #[test]
+ fn respects_prelude_setting() {
+ let ra_fixture = r#"
+//- /main.rs crate:main deps:krate
+$0
+//- /krate.rs crate:krate
+pub mod prelude {
+ pub use crate::foo::*;
+}
+
+pub mod foo {
+ pub struct Foo;
+}
+"#;
+ check_found_path(
+ ra_fixture,
+ "krate::foo::Foo",
+ "krate::foo::Foo",
+ "krate::foo::Foo",
+ "krate::foo::Foo",
+ );
+ check_found_path_prelude(
+ ra_fixture,
+ "krate::prelude::Foo",
+ "krate::prelude::Foo",
+ "krate::prelude::Foo",
+ "krate::prelude::Foo",
+ );
+ }
}
diff --git a/crates/hir-def/src/import_map.rs b/crates/hir-def/src/import_map.rs
index 6461439bb7..649ea13888 100644
--- a/crates/hir-def/src/import_map.rs
+++ b/crates/hir-def/src/import_map.rs
@@ -1,13 +1,14 @@
//! A map of all publicly exported items in a crate.
-use std::{collections::hash_map::Entry, fmt, hash::BuildHasherDefault};
+use std::{fmt, hash::BuildHasherDefault};
use base_db::CrateId;
-use fst::{self, Streamer};
+use fst::{self, raw::IndexedValue, Streamer};
use hir_expand::name::Name;
use indexmap::IndexMap;
use itertools::Itertools;
-use rustc_hash::{FxHashMap, FxHashSet, FxHasher};
+use rustc_hash::{FxHashSet, FxHasher};
+use smallvec::SmallVec;
use triomphe::Arc;
use crate::{
@@ -20,31 +21,28 @@ use crate::{
type FxIndexMap<K, V> = IndexMap<K, V, BuildHasherDefault<FxHasher>>;
-// FIXME: Support aliases: an item may be exported under multiple names, so `ImportInfo` should
-// have `Vec<(Name, ModuleId)>` instead of `(Name, ModuleId)`.
/// Item import details stored in the `ImportMap`.
-#[derive(Debug, Clone, Eq, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
pub struct ImportInfo {
/// A name that can be used to import the item, relative to the crate's root.
pub name: Name,
/// The module containing this item.
pub container: ModuleId,
- /// Whether the import is a trait associated item or not.
- pub is_trait_assoc_item: bool,
/// Whether this item is annotated with `#[doc(hidden)]`.
pub is_doc_hidden: bool,
/// Whether this item is annotated with `#[unstable(..)]`.
pub is_unstable: bool,
}
+type ImportMapIndex = FxIndexMap<ItemInNs, (SmallVec<[ImportInfo; 1]>, IsTraitAssocItem)>;
+
/// A map from publicly exported items to its name.
///
/// Reexports of items are taken into account, ie. if something is exported under multiple
/// names, the one with the shortest import path will be used.
#[derive(Default)]
pub struct ImportMap {
- map: FxIndexMap<ItemInNs, ImportInfo>,
-
+ map: ImportMapIndex,
/// List of keys stored in `map`, sorted lexicographically by their `ModPath`. Indexed by the
/// values returned by running `fst`.
///
@@ -55,6 +53,12 @@ pub struct ImportMap {
fst: fst::Map<Vec<u8>>,
}
+#[derive(Copy, Clone, PartialEq, Eq)]
+enum IsTraitAssocItem {
+ Yes,
+ No,
+}
+
impl ImportMap {
pub(crate) fn import_map_query(db: &dyn DefDatabase, krate: CrateId) -> Arc<Self> {
let _p = profile::span("import_map_query");
@@ -64,13 +68,18 @@ impl ImportMap {
let mut importables: Vec<_> = map
.iter()
// We've only collected items, whose name cannot be tuple field.
- .map(|(&item, info)| (item, info.name.as_str().unwrap().to_ascii_lowercase()))
+ .flat_map(|(&item, (info, _))| {
+ info.iter()
+ .map(move |info| (item, info.name.as_str().unwrap().to_ascii_lowercase()))
+ })
.collect();
importables.sort_by(|(_, lhs_name), (_, rhs_name)| lhs_name.cmp(rhs_name));
+ importables.dedup();
// Build the FST, taking care not to insert duplicate values.
let mut builder = fst::MapBuilder::memory();
- let iter = importables.iter().enumerate().dedup_by(|lhs, rhs| lhs.1 .1 == rhs.1 .1);
+ let iter =
+ importables.iter().enumerate().dedup_by(|(_, (_, lhs)), (_, (_, rhs))| lhs == rhs);
for (start_idx, (_, name)) in iter {
let _ = builder.insert(name, start_idx as u64);
}
@@ -82,12 +91,12 @@ impl ImportMap {
})
}
- pub fn import_info_for(&self, item: ItemInNs) -> Option<&ImportInfo> {
- self.map.get(&item)
+ pub fn import_info_for(&self, item: ItemInNs) -> Option<&[ImportInfo]> {
+ self.map.get(&item).map(|(info, _)| &**info)
}
}
-fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> FxIndexMap<ItemInNs, ImportInfo> {
+fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> ImportMapIndex {
let _p = profile::span("collect_import_map");
let def_map = db.crate_def_map(krate);
@@ -95,11 +104,13 @@ fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> FxIndexMap<ItemIn
// We look only into modules that are public(ly reexported), starting with the crate root.
let root = def_map.module_id(DefMap::ROOT);
- let mut worklist = vec![(root, 0u32)];
- // Records items' minimum module depth.
- let mut depth_map = FxHashMap::default();
+ let mut worklist = vec![root];
+ let mut visited = FxHashSet::default();
- while let Some((module, depth)) = worklist.pop() {
+ while let Some(module) = worklist.pop() {
+ if !visited.insert(module) {
+ continue;
+ }
let ext_def_map;
let mod_data = if module.krate == krate {
&def_map[module.local_id]
@@ -131,62 +142,18 @@ fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> FxIndexMap<ItemIn
ItemInNs::Macros(id) => Some(id.into()),
}
};
- let status @ (is_doc_hidden, is_unstable) =
- attr_id.map_or((false, false), |attr_id| {
- let attrs = db.attrs(attr_id);
- (attrs.has_doc_hidden(), attrs.is_unstable())
- });
+ let (is_doc_hidden, is_unstable) = attr_id.map_or((false, false), |attr_id| {
+ let attrs = db.attrs(attr_id);
+ (attrs.has_doc_hidden(), attrs.is_unstable())
+ });
let import_info = ImportInfo {
name: name.clone(),
container: module,
- is_trait_assoc_item: false,
is_doc_hidden,
is_unstable,
};
- match depth_map.entry(item) {
- Entry::Vacant(entry) => _ = entry.insert((depth, status)),
- Entry::Occupied(mut entry) => {
- let &(occ_depth, (occ_is_doc_hidden, occ_is_unstable)) = entry.get();
- (depth, occ_depth);
- let overwrite = match (
- is_doc_hidden,
- occ_is_doc_hidden,
- is_unstable,
- occ_is_unstable,
- ) {
- // no change of hiddeness or unstableness
- (true, true, true, true)
- | (true, true, false, false)
- | (false, false, true, true)
- | (false, false, false, false) => depth < occ_depth,
-
- // either less hidden or less unstable, accept
- (true, true, false, true)
- | (false, true, true, true)
- | (false, true, false, true)
- | (false, true, false, false)
- | (false, false, false, true) => true,
- // more hidden or unstable, discard
- (true, true, true, false)
- | (true, false, true, true)
- | (true, false, true, false)
- | (true, false, false, false)
- | (false, false, true, false) => false,
-
- // exchanges doc(hidden) for unstable (and vice-versa),
- (true, false, false, true) | (false, true, true, false) => {
- depth < occ_depth
- }
- };
- if !overwrite {
- continue;
- }
- entry.insert((depth, status));
- }
- }
-
if let Some(ModuleDefId::TraitId(tr)) = item.as_module_def_id() {
collect_trait_assoc_items(
db,
@@ -197,13 +164,14 @@ fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> FxIndexMap<ItemIn
);
}
- map.insert(item, import_info);
+ let (infos, _) =
+ map.entry(item).or_insert_with(|| (SmallVec::new(), IsTraitAssocItem::No));
+ infos.reserve_exact(1);
+ infos.push(import_info);
- // If we've just added a module, descend into it. We might traverse modules
- // multiple times, but only if the module depth is smaller (else we `continue`
- // above).
+ // If we've just added a module, descend into it.
if let Some(ModuleDefId::ModuleId(mod_id)) = item.as_module_def_id() {
- worklist.push((mod_id, depth + 1));
+ worklist.push(mod_id);
}
}
}
@@ -214,7 +182,7 @@ fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> FxIndexMap<ItemIn
fn collect_trait_assoc_items(
db: &dyn DefDatabase,
- map: &mut FxIndexMap<ItemInNs, ImportInfo>,
+ map: &mut ImportMapIndex,
tr: TraitId,
is_type_in_ns: bool,
trait_import_info: &ImportInfo,
@@ -241,11 +209,14 @@ fn collect_trait_assoc_items(
let assoc_item_info = ImportInfo {
container: trait_import_info.container,
name: assoc_item_name.clone(),
- is_trait_assoc_item: true,
is_doc_hidden: attrs.has_doc_hidden(),
is_unstable: attrs.is_unstable(),
};
- map.insert(assoc_item, assoc_item_info);
+
+ let (infos, _) =
+ map.entry(assoc_item).or_insert_with(|| (SmallVec::new(), IsTraitAssocItem::Yes));
+ infos.reserve_exact(1);
+ infos.push(assoc_item_info);
}
}
@@ -263,10 +234,13 @@ impl fmt::Debug for ImportMap {
let mut importable_names: Vec<_> = self
.map
.iter()
- .map(|(item, _)| match item {
- ItemInNs::Types(it) => format!("- {it:?} (t)",),
- ItemInNs::Values(it) => format!("- {it:?} (v)",),
- ItemInNs::Macros(it) => format!("- {it:?} (m)",),
+ .map(|(item, (infos, _))| {
+ let l = infos.len();
+ match item {
+ ItemInNs::Types(it) => format!("- {it:?} (t) [{l}]",),
+ ItemInNs::Values(it) => format!("- {it:?} (v) [{l}]",),
+ ItemInNs::Macros(it) => format!("- {it:?} (m) [{l}]",),
+ }
})
.collect();
@@ -276,7 +250,7 @@ impl fmt::Debug for ImportMap {
}
/// A way to match import map contents against the search query.
-#[derive(Debug)]
+#[derive(Copy, Clone, Debug)]
enum SearchMode {
/// Import map entry should strictly match the query string.
Exact,
@@ -349,6 +323,15 @@ impl Query {
Self { case_sensitive: true, ..self }
}
+ fn matches_assoc_mode(&self, is_trait_assoc_item: IsTraitAssocItem) -> bool {
+ match (is_trait_assoc_item, self.assoc_mode) {
+ (IsTraitAssocItem::Yes, AssocSearchMode::Exclude)
+ | (IsTraitAssocItem::No, AssocSearchMode::AssocItemsOnly) => false,
+ _ => true,
+ }
+ }
+
+ /// Checks whether the import map entry matches the query.
fn import_matches(
&self,
db: &dyn DefDatabase,
@@ -356,12 +339,8 @@ impl Query {
enforce_lowercase: bool,
) -> bool {
let _p = profile::span("import_map::Query::import_matches");
- match (import.is_trait_assoc_item, self.assoc_mode) {
- (true, AssocSearchMode::Exclude) => return false,
- (false, AssocSearchMode::AssocItemsOnly) => return false,
- _ => {}
- }
+ // FIXME: Can we get rid of the alloc here?
let mut input = import.name.display(db.upcast()).to_string();
let case_insensitive = enforce_lowercase || !self.case_sensitive;
if case_insensitive {
@@ -392,7 +371,7 @@ impl Query {
pub fn search_dependencies(
db: &dyn DefDatabase,
krate: CrateId,
- query: Query,
+ ref query: Query,
) -> FxHashSet<ItemInNs> {
let _p = profile::span("search_dependencies").detail(|| format!("{query:?}"));
@@ -410,31 +389,58 @@ pub fn search_dependencies(
let mut stream = op.union();
let mut res = FxHashSet::default();
+ let mut common_importable_data_scratch = vec![];
while let Some((_, indexed_values)) = stream.next() {
- for indexed_value in indexed_values {
- let import_map = &import_maps[indexed_value.index];
- let importables = &import_map.importables[indexed_value.value as usize..];
+ for &IndexedValue { index, value } in indexed_values {
+ let import_map = &import_maps[index];
+ let importables @ [importable, ..] = &import_map.importables[value as usize..] else {
+ continue;
+ };
- let common_importable_data = &import_map.map[&importables[0]];
- if !query.import_matches(db, common_importable_data, true) {
+ let &(ref importable_data, is_trait_assoc_item) = &import_map.map[importable];
+ if !query.matches_assoc_mode(is_trait_assoc_item) {
continue;
}
- // Name shared by the importable items in this group.
- let common_importable_name =
- common_importable_data.name.to_smol_str().to_ascii_lowercase();
- // Add the items from this name group. Those are all subsequent items in
- // `importables` whose name match `common_importable_name`.
- let iter = importables
- .iter()
- .copied()
- .take_while(|item| {
- common_importable_name
- == import_map.map[item].name.to_smol_str().to_ascii_lowercase()
- })
- .filter(|item| {
- !query.case_sensitive // we've already checked the common importables name case-insensitively
- || query.import_matches(db, &import_map.map[item], false)
+ common_importable_data_scratch.extend(
+ importable_data
+ .iter()
+ .filter(|&info| query.import_matches(db, info, true))
+ // Name shared by the importable items in this group.
+ .map(|info| info.name.to_smol_str()),
+ );
+ if common_importable_data_scratch.is_empty() {
+ continue;
+ }
+ common_importable_data_scratch.sort();
+ common_importable_data_scratch.dedup();
+
+ let iter =
+ common_importable_data_scratch.drain(..).flat_map(|common_importable_name| {
+ // Add the items from this name group. Those are all subsequent items in
+ // `importables` whose name match `common_importable_name`.
+ importables
+ .iter()
+ .copied()
+ .take_while(move |item| {
+ let &(ref import_infos, assoc_mode) = &import_map.map[item];
+ query.matches_assoc_mode(assoc_mode)
+ && import_infos.iter().any(|info| {
+ info.name
+ .to_smol_str()
+ .eq_ignore_ascii_case(&common_importable_name)
+ })
+ })
+ .filter(move |item| {
+ !query.case_sensitive || {
+ // we've already checked the common importables name case-insensitively
+ let &(ref import_infos, assoc_mode) = &import_map.map[item];
+ query.matches_assoc_mode(assoc_mode)
+ && import_infos
+ .iter()
+ .any(|info| query.import_matches(db, info, false))
+ }
+ })
});
res.extend(iter);
@@ -461,6 +467,7 @@ mod tests {
let mut importable_paths: Vec<_> = self
.map
.iter()
+ .flat_map(|(item, (info, _))| info.iter().map(move |info| (item, info)))
.map(|(item, info)| {
let path = render_path(db, info);
let ns = match item {
@@ -499,7 +506,7 @@ mod tests {
let (path, mark) = match assoc_item_path(&db, &dependency_imports, dependency) {
Some(assoc_item_path) => (assoc_item_path, "a"),
None => (
- render_path(&db, dependency_imports.import_info_for(dependency)?),
+ render_path(&db, &dependency_imports.import_info_for(dependency)?[0]),
match dependency {
ItemInNs::Types(ModuleDefId::FunctionId(_))
| ItemInNs::Values(ModuleDefId::FunctionId(_)) => "f",
@@ -547,7 +554,12 @@ mod tests {
.items
.iter()
.find(|(_, assoc_item_id)| &dependency_assoc_item_id == assoc_item_id)?;
- Some(format!("{}::{}", render_path(db, trait_info), assoc_item_name.display(db.upcast())))
+ // FIXME: This should check all import infos, not just the first
+ Some(format!(
+ "{}::{}",
+ render_path(db, &trait_info[0]),
+ assoc_item_name.display(db.upcast())
+ ))
}
fn check(ra_fixture: &str, expect: Expect) {
@@ -623,6 +635,7 @@ mod tests {
main:
- publ1 (t)
- real_pu2 (t)
+ - real_pu2::Pub (t)
- real_pub (t)
- real_pub::Pub (t)
"#]],
@@ -648,6 +661,7 @@ mod tests {
- sub (t)
- sub::Def (t)
- sub::subsub (t)
+ - sub::subsub::Def (t)
"#]],
);
}
@@ -747,7 +761,9 @@ mod tests {
- module (t)
- module::S (t)
- module::S (v)
+ - module::module (t)
- sub (t)
+ - sub::module (t)
"#]],
);
}
diff --git a/crates/hir-def/src/lib.rs b/crates/hir-def/src/lib.rs
index 495e2d4769..fd8f64d670 100644
--- a/crates/hir-def/src/lib.rs
+++ b/crates/hir-def/src/lib.rs
@@ -152,7 +152,7 @@ impl TryFrom<ModuleId> for CrateRootModuleId {
}
}
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
pub struct ModuleId {
krate: CrateId,
/// If this `ModuleId` was derived from a `DefMap` for a block expression, this stores the
diff --git a/crates/hir-ty/src/display.rs b/crates/hir-ty/src/display.rs
index f6d6b00d74..9ccf467358 100644
--- a/crates/hir-ty/src/display.rs
+++ b/crates/hir-ty/src/display.rs
@@ -945,6 +945,7 @@ impl HirDisplay for Ty {
ItemInNs::Types((*def_id).into()),
module_id,
false,
+ true,
) {
write!(f, "{}", path.display(f.db.upcast()))?;
} else {
diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index 17ffb9acbd..6fcc02fb9d 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -664,8 +664,15 @@ impl Module {
db: &dyn DefDatabase,
item: impl Into<ItemInNs>,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<ModPath> {
- hir_def::find_path::find_path(db, item.into().into(), self.into(), prefer_no_std)
+ hir_def::find_path::find_path(
+ db,
+ item.into().into(),
+ self.into(),
+ prefer_no_std,
+ prefer_prelude,
+ )
}
/// Finds a path that can be used to refer to the given item from within
@@ -676,6 +683,7 @@ impl Module {
item: impl Into<ItemInNs>,
prefix_kind: PrefixKind,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<ModPath> {
hir_def::find_path::find_path_prefixed(
db,
@@ -683,6 +691,7 @@ impl Module {
self.into(),
prefix_kind,
prefer_no_std,
+ prefer_prelude,
)
}
}
diff --git a/crates/ide-assists/src/assist_config.rs b/crates/ide-assists/src/assist_config.rs
index b273ebc85a..fbe17dbfd7 100644
--- a/crates/ide-assists/src/assist_config.rs
+++ b/crates/ide-assists/src/assist_config.rs
@@ -14,5 +14,6 @@ pub struct AssistConfig {
pub allowed: Option<Vec<AssistKind>>,
pub insert_use: InsertUseConfig,
pub prefer_no_std: bool,
+ pub prefer_prelude: bool,
pub assist_emit_must_use: bool,
}
diff --git a/crates/ide-assists/src/handlers/add_missing_match_arms.rs b/crates/ide-assists/src/handlers/add_missing_match_arms.rs
index c8b78b0941..2374da9a34 100644
--- a/crates/ide-assists/src/handlers/add_missing_match_arms.rs
+++ b/crates/ide-assists/src/handlers/add_missing_match_arms.rs
@@ -88,7 +88,13 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
.into_iter()
.filter_map(|variant| {
Some((
- build_pat(ctx.db(), module, variant, ctx.config.prefer_no_std)?,
+ build_pat(
+ ctx.db(),
+ module,
+ variant,
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )?,
variant.should_be_hidden(ctx.db(), module.krate()),
))
})
@@ -140,7 +146,13 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
.iter()
.any(|variant| variant.should_be_hidden(ctx.db(), module.krate()));
let patterns = variants.into_iter().filter_map(|variant| {
- build_pat(ctx.db(), module, variant, ctx.config.prefer_no_std)
+ build_pat(
+ ctx.db(),
+ module,
+ variant,
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )
});
(ast::Pat::from(make::tuple_pat(patterns)), is_hidden)
@@ -173,7 +185,13 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>)
.iter()
.any(|variant| variant.should_be_hidden(ctx.db(), module.krate()));
let patterns = variants.into_iter().filter_map(|variant| {
- build_pat(ctx.db(), module, variant.clone(), ctx.config.prefer_no_std)
+ build_pat(
+ ctx.db(),
+ module,
+ variant.clone(),
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )
});
(ast::Pat::from(make::slice_pat(patterns)), is_hidden)
})
@@ -440,11 +458,16 @@ fn build_pat(
module: hir::Module,
var: ExtendedVariant,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<ast::Pat> {
match var {
ExtendedVariant::Variant(var) => {
- let path =
- mod_path_to_ast(&module.find_use_path(db, ModuleDef::from(var), prefer_no_std)?);
+ let path = mod_path_to_ast(&module.find_use_path(
+ db,
+ ModuleDef::from(var),
+ prefer_no_std,
+ prefer_prelude,
+ )?);
// FIXME: use HIR for this; it doesn't currently expose struct vs. tuple vs. unit variants though
Some(match var.source(db)?.value.kind() {
diff --git a/crates/ide-assists/src/handlers/auto_import.rs b/crates/ide-assists/src/handlers/auto_import.rs
index cafd57a977..f508c42c53 100644
--- a/crates/ide-assists/src/handlers/auto_import.rs
+++ b/crates/ide-assists/src/handlers/auto_import.rs
@@ -93,6 +93,7 @@ pub(crate) fn auto_import(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<
&ctx.sema,
ctx.config.insert_use.prefix_kind,
ctx.config.prefer_no_std,
+ ctx.config.prefer_no_std,
);
if proposed_imports.is_empty() {
return None;
diff --git a/crates/ide-assists/src/handlers/bool_to_enum.rs b/crates/ide-assists/src/handlers/bool_to_enum.rs
index 082839118c..11facc5bee 100644
--- a/crates/ide-assists/src/handlers/bool_to_enum.rs
+++ b/crates/ide-assists/src/handlers/bool_to_enum.rs
@@ -348,6 +348,7 @@ fn augment_references_with_imports(
ModuleDef::Module(*target_module),
ctx.config.insert_use.prefix_kind,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)
.map(|mod_path| {
make::path_concat(mod_path_to_ast(&mod_path), make::path_from_text("Bool"))
diff --git a/crates/ide-assists/src/handlers/convert_into_to_from.rs b/crates/ide-assists/src/handlers/convert_into_to_from.rs
index 872b52c98f..d649f13d6e 100644
--- a/crates/ide-assists/src/handlers/convert_into_to_from.rs
+++ b/crates/ide-assists/src/handlers/convert_into_to_from.rs
@@ -50,7 +50,12 @@ pub(crate) fn convert_into_to_from(acc: &mut Assists, ctx: &AssistContext<'_>) -
_ => return None,
};
- mod_path_to_ast(&module.find_use_path(ctx.db(), src_type_def, ctx.config.prefer_no_std)?)
+ mod_path_to_ast(&module.find_use_path(
+ ctx.db(),
+ src_type_def,
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )?)
};
let dest_type = match &ast_trait {
diff --git a/crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs b/crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs
index 32db5ee8da..1f3caa7db3 100644
--- a/crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs
+++ b/crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs
@@ -205,6 +205,7 @@ fn augment_references_with_imports(
ModuleDef::Module(*target_module),
ctx.config.insert_use.prefix_kind,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)
.map(|mod_path| {
make::path_concat(
diff --git a/crates/ide-assists/src/handlers/extract_function.rs b/crates/ide-assists/src/handlers/extract_function.rs
index de591cfde9..6b48d15881 100644
--- a/crates/ide-assists/src/handlers/extract_function.rs
+++ b/crates/ide-assists/src/handlers/extract_function.rs
@@ -163,6 +163,7 @@ pub(crate) fn extract_function(acc: &mut Assists, ctx: &AssistContext<'_>) -> Op
ModuleDef::from(control_flow_enum),
ctx.config.insert_use.prefix_kind,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
);
if let Some(mod_path) = mod_path {
diff --git a/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs b/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs
index e4f64ccc75..37db27a8fc 100644
--- a/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs
+++ b/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs
@@ -384,6 +384,7 @@ fn process_references(
*enum_module_def,
ctx.config.insert_use.prefix_kind,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
);
if let Some(mut mod_path) = mod_path {
mod_path.pop_segment();
diff --git a/crates/ide-assists/src/handlers/generate_deref.rs b/crates/ide-assists/src/handlers/generate_deref.rs
index 8154539617..473c699b59 100644
--- a/crates/ide-assists/src/handlers/generate_deref.rs
+++ b/crates/ide-assists/src/handlers/generate_deref.rs
@@ -58,8 +58,12 @@ fn generate_record_deref(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<(
let module = ctx.sema.to_def(&strukt)?.module(ctx.db());
let trait_ = deref_type_to_generate.to_trait(&ctx.sema, module.krate())?;
- let trait_path =
- module.find_use_path(ctx.db(), ModuleDef::Trait(trait_), ctx.config.prefer_no_std)?;
+ let trait_path = module.find_use_path(
+ ctx.db(),
+ ModuleDef::Trait(trait_),
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )?;
let field_type = field.ty()?;
let field_name = field.name()?;
@@ -99,8 +103,12 @@ fn generate_tuple_deref(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()
let module = ctx.sema.to_def(&strukt)?.module(ctx.db());
let trait_ = deref_type_to_generate.to_trait(&ctx.sema, module.krate())?;
- let trait_path =
- module.find_use_path(ctx.db(), ModuleDef::Trait(trait_), ctx.config.prefer_no_std)?;
+ let trait_path = module.find_use_path(
+ ctx.db(),
+ ModuleDef::Trait(trait_),
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )?;
let field_type = field.ty()?;
let target = field.syntax().text_range();
diff --git a/crates/ide-assists/src/handlers/generate_new.rs b/crates/ide-assists/src/handlers/generate_new.rs
index 824255e4f8..7bfd599660 100644
--- a/crates/ide-assists/src/handlers/generate_new.rs
+++ b/crates/ide-assists/src/handlers/generate_new.rs
@@ -67,6 +67,7 @@ pub(crate) fn generate_new(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option
ctx.sema.db,
item_for_path_search(ctx.sema.db, item_in_ns)?,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)?;
let expr = use_trivial_constructor(
diff --git a/crates/ide-assists/src/handlers/qualify_method_call.rs b/crates/ide-assists/src/handlers/qualify_method_call.rs
index 4bf974a565..ff65aac82e 100644
--- a/crates/ide-assists/src/handlers/qualify_method_call.rs
+++ b/crates/ide-assists/src/handlers/qualify_method_call.rs
@@ -48,6 +48,7 @@ pub(crate) fn qualify_method_call(acc: &mut Assists, ctx: &AssistContext<'_>) ->
ctx.sema.db,
item_for_path_search(ctx.sema.db, item_in_ns)?,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)?;
let qualify_candidate = QualifyCandidate::ImplMethod(ctx.sema.db, call, resolved_call);
diff --git a/crates/ide-assists/src/handlers/qualify_path.rs b/crates/ide-assists/src/handlers/qualify_path.rs
index 239149dc41..fde46db305 100644
--- a/crates/ide-assists/src/handlers/qualify_path.rs
+++ b/crates/ide-assists/src/handlers/qualify_path.rs
@@ -37,8 +37,11 @@ use crate::{
// ```
pub(crate) fn qualify_path(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> {
let (import_assets, syntax_under_caret) = find_importable_node(ctx)?;
- let mut proposed_imports =
- import_assets.search_for_relative_paths(&ctx.sema, ctx.config.prefer_no_std);
+ let mut proposed_imports = import_assets.search_for_relative_paths(
+ &ctx.sema,
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ );
if proposed_imports.is_empty() {
return None;
}
diff --git a/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs b/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs
index ac45581b7b..69a4e748b7 100644
--- a/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs
+++ b/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs
@@ -82,7 +82,12 @@ pub(crate) fn replace_derive_with_manual_impl(
})
.flat_map(|trait_| {
current_module
- .find_use_path(ctx.sema.db, hir::ModuleDef::Trait(trait_), ctx.config.prefer_no_std)
+ .find_use_path(
+ ctx.sema.db,
+ hir::ModuleDef::Trait(trait_),
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )
.as_ref()
.map(mod_path_to_ast)
.zip(Some(trait_))
diff --git a/crates/ide-assists/src/handlers/replace_qualified_name_with_use.rs b/crates/ide-assists/src/handlers/replace_qualified_name_with_use.rs
index dbbc56958f..f03eb6118a 100644
--- a/crates/ide-assists/src/handlers/replace_qualified_name_with_use.rs
+++ b/crates/ide-assists/src/handlers/replace_qualified_name_with_use.rs
@@ -68,6 +68,7 @@ pub(crate) fn replace_qualified_name_with_use(
module,
ctx.config.insert_use.prefix_kind,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)
})
.flatten();
diff --git a/crates/ide-assists/src/tests.rs b/crates/ide-assists/src/tests.rs
index cc3e251a8f..566384615b 100644
--- a/crates/ide-assists/src/tests.rs
+++ b/crates/ide-assists/src/tests.rs
@@ -30,6 +30,7 @@ pub(crate) const TEST_CONFIG: AssistConfig = AssistConfig {
skip_glob_imports: true,
},
prefer_no_std: false,
+ prefer_prelude: true,
assist_emit_must_use: false,
};
@@ -44,6 +45,7 @@ pub(crate) const TEST_CONFIG_NO_SNIPPET_CAP: AssistConfig = AssistConfig {
skip_glob_imports: true,
},
prefer_no_std: false,
+ prefer_prelude: true,
assist_emit_must_use: false,
};
diff --git a/crates/ide-completion/src/completions.rs b/crates/ide-completion/src/completions.rs
index f60ac15016..7d38c638a8 100644
--- a/crates/ide-completion/src/completions.rs
+++ b/crates/ide-completion/src/completions.rs
@@ -626,6 +626,7 @@ fn enum_variants_with_paths(
ctx.db,
hir::ModuleDef::from(variant),
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
) {
// Variants with trivial paths are already added by the existing completion logic,
// so we should avoid adding these twice
diff --git a/crates/ide-completion/src/completions/expr.rs b/crates/ide-completion/src/completions/expr.rs
index 9daa6984c3..d3c817d4b4 100644
--- a/crates/ide-completion/src/completions/expr.rs
+++ b/crates/ide-completion/src/completions/expr.rs
@@ -175,6 +175,7 @@ pub(crate) fn complete_expr_path(
ctx.db,
hir::ModuleDef::from(strukt),
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)
.filter(|it| it.len() > 1);
@@ -197,6 +198,7 @@ pub(crate) fn complete_expr_path(
ctx.db,
hir::ModuleDef::from(un),
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)
.filter(|it| it.len() > 1);
diff --git a/crates/ide-completion/src/completions/flyimport.rs b/crates/ide-completion/src/completions/flyimport.rs
index 0961021e48..d74d3b264a 100644
--- a/crates/ide-completion/src/completions/flyimport.rs
+++ b/crates/ide-completion/src/completions/flyimport.rs
@@ -257,7 +257,12 @@ fn import_on_the_fly(
let user_input_lowercased = potential_import_name.to_lowercase();
import_assets
- .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind, ctx.config.prefer_no_std)
+ .search_for_imports(
+ &ctx.sema,
+ ctx.config.insert_use.prefix_kind,
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )
.into_iter()
.filter(ns_filter)
.filter(|import| {
@@ -299,7 +304,12 @@ fn import_on_the_fly_pat_(
let user_input_lowercased = potential_import_name.to_lowercase();
import_assets
- .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind, ctx.config.prefer_no_std)
+ .search_for_imports(
+ &ctx.sema,
+ ctx.config.insert_use.prefix_kind,
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )
.into_iter()
.filter(ns_filter)
.filter(|import| {
@@ -336,7 +346,12 @@ fn import_on_the_fly_method(
let user_input_lowercased = potential_import_name.to_lowercase();
import_assets
- .search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind, ctx.config.prefer_no_std)
+ .search_for_imports(
+ &ctx.sema,
+ ctx.config.insert_use.prefix_kind,
+ ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
+ )
.into_iter()
.filter(|import| {
!ctx.is_item_hidden(&import.item_to_import)
diff --git a/crates/ide-completion/src/config.rs b/crates/ide-completion/src/config.rs
index 3d025f284b..ed5ddde8fb 100644
--- a/crates/ide-completion/src/config.rs
+++ b/crates/ide-completion/src/config.rs
@@ -19,6 +19,7 @@ pub struct CompletionConfig {
pub snippet_cap: Option<SnippetCap>,
pub insert_use: InsertUseConfig,
pub prefer_no_std: bool,
+ pub prefer_prelude: bool,
pub snippets: Vec<Snippet>,
pub limit: Option<usize>,
}
diff --git a/crates/ide-completion/src/lib.rs b/crates/ide-completion/src/lib.rs
index 2fad293d16..aaf7cd7843 100644
--- a/crates/ide-completion/src/lib.rs
+++ b/crates/ide-completion/src/lib.rs
@@ -263,6 +263,7 @@ pub fn resolve_completion_edits(
candidate,
config.insert_use.prefix_kind,
config.prefer_no_std,
+ config.prefer_prelude,
)
})
.find(|mod_path| mod_path.display(db).to_string() == full_import_path);
diff --git a/crates/ide-completion/src/snippet.rs b/crates/ide-completion/src/snippet.rs
index 343719c536..50618296ee 100644
--- a/crates/ide-completion/src/snippet.rs
+++ b/crates/ide-completion/src/snippet.rs
@@ -179,6 +179,7 @@ fn import_edits(ctx: &CompletionContext<'_>, requires: &[GreenNode]) -> Option<V
item,
ctx.config.insert_use.prefix_kind,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)?;
Some((path.len() > 1).then(|| LocatedImport::new(path.clone(), item, item, None)))
};
diff --git a/crates/ide-completion/src/tests.rs b/crates/ide-completion/src/tests.rs
index 284bdd8af2..9db8e972dd 100644
--- a/crates/ide-completion/src/tests.rs
+++ b/crates/ide-completion/src/tests.rs
@@ -68,6 +68,7 @@ pub(crate) const TEST_CONFIG: CompletionConfig = CompletionConfig {
callable: Some(CallableSnippets::FillArguments),
snippet_cap: SnippetCap::new(true),
prefer_no_std: false,
+ prefer_prelude: true,
insert_use: InsertUseConfig {
granularity: ImportGranularity::Crate,
prefix_kind: PrefixKind::Plain,
diff --git a/crates/ide-db/src/imports/import_assets.rs b/crates/ide-db/src/imports/import_assets.rs
index da5a951f0b..04263d15d0 100644
--- a/crates/ide-db/src/imports/import_assets.rs
+++ b/crates/ide-db/src/imports/import_assets.rs
@@ -220,9 +220,10 @@ impl ImportAssets {
sema: &Semantics<'_, RootDatabase>,
prefix_kind: PrefixKind,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Vec<LocatedImport> {
let _p = profile::span("import_assets::search_for_imports");
- self.search_for(sema, Some(prefix_kind), prefer_no_std)
+ self.search_for(sema, Some(prefix_kind), prefer_no_std, prefer_prelude)
}
/// This may return non-absolute paths if a part of the returned path is already imported into scope.
@@ -230,9 +231,10 @@ impl ImportAssets {
&self,
sema: &Semantics<'_, RootDatabase>,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Vec<LocatedImport> {
let _p = profile::span("import_assets::search_for_relative_paths");
- self.search_for(sema, None, prefer_no_std)
+ self.search_for(sema, None, prefer_no_std, prefer_prelude)
}
/// Requires imports to by prefix instead of fuzzily.
@@ -270,6 +272,7 @@ impl ImportAssets {
sema: &Semantics<'_, RootDatabase>,
prefixed: Option<PrefixKind>,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Vec<LocatedImport> {
let _p = profile::span("import_assets::search_for");
@@ -281,6 +284,7 @@ impl ImportAssets {
&self.module_with_candidate,
prefixed,
prefer_no_std,
+ prefer_prelude,
)
};
@@ -594,11 +598,18 @@ fn get_mod_path(
module_with_candidate: &Module,
prefixed: Option<PrefixKind>,
prefer_no_std: bool,
+ prefer_prelude: bool,
) -> Option<ModPath> {
if let Some(prefix_kind) = prefixed {
- module_with_candidate.find_use_path_prefixed(db, item_to_search, prefix_kind, prefer_no_std)
+ module_with_candidate.find_use_path_prefixed(
+ db,
+ item_to_search,
+ prefix_kind,
+ prefer_no_std,
+ prefer_prelude,
+ )
} else {
- module_with_candidate.find_use_path(db, item_to_search, prefer_no_std)
+ module_with_candidate.find_use_path(db, item_to_search, prefer_no_std, prefer_prelude)
}
}
diff --git a/crates/ide-db/src/path_transform.rs b/crates/ide-db/src/path_transform.rs
index fb75b5b458..fa9339f30f 100644
--- a/crates/ide-db/src/path_transform.rs
+++ b/crates/ide-db/src/path_transform.rs
@@ -277,6 +277,7 @@ impl Ctx<'_> {
self.source_scope.db.upcast(),
hir::ModuleDef::Trait(trait_ref),
false,
+ true,
)?;
match make::ty_path(mod_path_to_ast(&found_path)) {
ast::Type::PathType(path_ty) => Some(path_ty),
@@ -311,8 +312,12 @@ impl Ctx<'_> {
}
}
- let found_path =
- self.target_module.find_use_path(self.source_scope.db.upcast(), def, false)?;
+ let found_path = self.target_module.find_use_path(
+ self.source_scope.db.upcast(),
+ def,
+ false,
+ true,
+ )?;
let res = mod_path_to_ast(&found_path).clone_for_update();
if let Some(args) = path.segment().and_then(|it| it.generic_arg_list()) {
if let Some(segment) = res.segment() {
diff --git a/crates/ide-diagnostics/src/handlers/json_is_not_rust.rs b/crates/ide-diagnostics/src/handlers/json_is_not_rust.rs
index a337e2660d..659b74445f 100644
--- a/crates/ide-diagnostics/src/handlers/json_is_not_rust.rs
+++ b/crates/ide-diagnostics/src/handlers/json_is_not_rust.rs
@@ -136,6 +136,7 @@ pub(crate) fn json_in_items(
it,
config.insert_use.prefix_kind,
config.prefer_no_std,
+ config.prefer_prelude,
) {
insert_use(&scope, mod_path_to_ast(&it), &config.insert_use);
}
@@ -148,6 +149,7 @@ pub(crate) fn json_in_items(
it,
config.insert_use.prefix_kind,
config.prefer_no_std,
+ config.prefer_prelude,
) {
insert_use(&scope, mod_path_to_ast(&it), &config.insert_use);
}
diff --git a/crates/ide-diagnostics/src/handlers/missing_fields.rs b/crates/ide-diagnostics/src/handlers/missing_fields.rs
index c09be3fee7..d7dca1083a 100644
--- a/crates/ide-diagnostics/src/handlers/missing_fields.rs
+++ b/crates/ide-diagnostics/src/handlers/missing_fields.rs
@@ -122,6 +122,7 @@ fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::MissingFields) -> Option<Vec<Ass
ctx.sema.db,
item_for_path_search(ctx.sema.db, item_in_ns)?,
ctx.config.prefer_no_std,
+ ctx.config.prefer_prelude,
)?;
use_trivial_constructor(
diff --git a/crates/ide-diagnostics/src/lib.rs b/crates/ide-diagnostics/src/lib.rs
index fe5567544e..d8e37a848a 100644
--- a/crates/ide-diagnostics/src/lib.rs
+++ b/crates/ide-diagnostics/src/lib.rs
@@ -225,6 +225,7 @@ pub struct DiagnosticsConfig {
// FIXME: We may want to include a whole `AssistConfig` here
pub insert_use: InsertUseConfig,
pub prefer_no_std: bool,
+ pub prefer_prelude: bool,
}
impl DiagnosticsConfig {
@@ -247,6 +248,7 @@ impl DiagnosticsConfig {
skip_glob_imports: false,
},
prefer_no_std: false,
+ prefer_prelude: true,
}
}
}
diff --git a/crates/ide-ssr/src/matching.rs b/crates/ide-ssr/src/matching.rs
index 60fcbbbd39..0312a0f11e 100644
--- a/crates/ide-ssr/src/matching.rs
+++ b/crates/ide-ssr/src/matching.rs
@@ -651,7 +651,7 @@ impl Match {
for (path, resolved_path) in &template.resolved_paths {
if let hir::PathResolution::Def(module_def) = resolved_path.resolution {
let mod_path =
- module.find_use_path(sema.db, module_def, false).ok_or_else(|| {
+ module.find_use_path(sema.db, module_def, false, true).ok_or_else(|| {
match_error!("Failed to render template path `{}` at match location")
})?;
self.rendered_template_paths.insert(path.clone(), mod_path);
diff --git a/crates/rust-analyzer/src/cli/analysis_stats.rs b/crates/rust-analyzer/src/cli/analysis_stats.rs
index 230ff5f9b8..0f6539f224 100644
--- a/crates/rust-analyzer/src/cli/analysis_stats.rs
+++ b/crates/rust-analyzer/src/cli/analysis_stats.rs
@@ -762,7 +762,8 @@ impl flags::AnalysisStats {
group: true,
skip_glob_imports: true,
},
- prefer_no_std: Default::default(),
+ prefer_no_std: false,
+ prefer_prelude: true,
},
ide::AssistResolveStrategy::All,
file_id,
diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs
index c8df4255d9..6b8de861db 100644
--- a/crates/rust-analyzer/src/config.rs
+++ b/crates/rust-analyzer/src/config.rs
@@ -353,6 +353,8 @@ config_data! {
imports_merge_glob: bool = "true",
/// Prefer to unconditionally use imports of the core and alloc crate, over the std crate.
imports_prefer_no_std: bool = "false",
+ /// Whether to prefer import paths containing a `prelude` module.
+ imports_prefer_prelude: bool = "false",
/// The path structure for newly inserted paths to use.
imports_prefix: ImportPrefixDef = "\"plain\"",
@@ -1118,6 +1120,7 @@ impl Config {
},
insert_use: self.insert_use_config(),
prefer_no_std: self.data.imports_prefer_no_std,
+ prefer_prelude: self.data.imports_prefer_prelude,
}
}
@@ -1487,6 +1490,7 @@ impl Config {
},
insert_use: self.insert_use_config(),
prefer_no_std: self.data.imports_prefer_no_std,
+ prefer_prelude: self.data.imports_prefer_prelude,
snippet_cap: SnippetCap::new(try_or_def!(
self.caps
.text_document
@@ -1516,6 +1520,7 @@ impl Config {
allowed: None,
insert_use: self.insert_use_config(),
prefer_no_std: self.data.imports_prefer_no_std,
+ prefer_prelude: self.data.imports_prefer_prelude,
assist_emit_must_use: self.data.assist_emitMustUse,
}
}
diff --git a/crates/rust-analyzer/src/integrated_benchmarks.rs b/crates/rust-analyzer/src/integrated_benchmarks.rs
index 2c40255291..b7e839ac2a 100644
--- a/crates/rust-analyzer/src/integrated_benchmarks.rs
+++ b/crates/rust-analyzer/src/integrated_benchmarks.rs
@@ -146,6 +146,7 @@ fn integrated_completion_benchmark() {
},
snippets: Vec::new(),
prefer_no_std: false,
+ prefer_prelude: true,
limit: None,
};
let position =
@@ -186,6 +187,7 @@ fn integrated_completion_benchmark() {
},
snippets: Vec::new(),
prefer_no_std: false,
+ prefer_prelude: true,
limit: None,
};
let position =
diff --git a/docs/user/generated_config.adoc b/docs/user/generated_config.adoc
index 7c76ae81be..7460df49fc 100644
--- a/docs/user/generated_config.adoc
+++ b/docs/user/generated_config.adoc
@@ -498,6 +498,11 @@ Whether to allow import insertion to merge new imports into single path glob imp
--
Prefer to unconditionally use imports of the core and alloc crate, over the std crate.
--
+[[rust-analyzer.imports.prefer.prelude]]rust-analyzer.imports.prefer.prelude (default: `false`)::
++
+--
+Whether to prefer import paths containing a `prelude` module.
+--
[[rust-analyzer.imports.prefix]]rust-analyzer.imports.prefix (default: `"plain"`)::
+
--
diff --git a/editors/code/package.json b/editors/code/package.json
index c7b877b289..ef9dec5f14 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -1134,6 +1134,11 @@
"default": false,
"type": "boolean"
},
+ "rust-analyzer.imports.prefer.prelude": {
+ "markdownDescription": "Whether to prefer import paths containing a `prelude` module.",
+ "default": false,
+ "type": "boolean"
+ },
"rust-analyzer.imports.prefix": {
"markdownDescription": "The path structure for newly inserted paths to use.",
"default": "plain",