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VeykrilVeykril
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Slightly cleanup import_assets module
1 parent 02b844e commit 01b410c

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2 files changed

+84
-62
lines changed

2 files changed

+84
-62
lines changed

‎crates/assists/src/handlers/auto_import.rs

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -63,13 +63,13 @@ pub(crate) fn auto_import(acc: &mut Assists, ctx: &AssistContext) -> Option<()>
6363

6464
fn import_group_message(import_candidate: &ImportCandidate) -> GroupLabel {
6565
let name = match import_candidate {
66-
ImportCandidate::UnqualifiedName(name) => format!("Import {}", name),
67-
ImportCandidate::QualifierStart(qualifier_start) => format!("Import {}", qualifier_start),
68-
ImportCandidate::TraitAssocItem(_, trait_assoc_item_name) => {
69-
format!("Import a trait for item {}", trait_assoc_item_name)
66+
ImportCandidate::UnqualifiedName(candidate)
67+
| ImportCandidate::QualifierStart(candidate) => format!("Import {}", &candidate.name),
68+
ImportCandidate::TraitAssocItem(candidate) => {
69+
format!("Import a trait for item {}", &candidate.name)
7070
}
71-
ImportCandidate::TraitMethod(_, trait_method_name) => {
72-
format!("Import a trait for method {}", trait_method_name)
71+
ImportCandidate::TraitMethod(candidate) => {
72+
format!("Import a trait for method {}", &candidate.name)
7373
}
7474
};
7575
GroupLabel(name)

‎crates/assists/src/utils/import_assets.rs

Lines changed: 78 additions & 56 deletions
Original file line numberDiff line numberDiff line change
@@ -12,18 +12,29 @@ use crate::assist_config::InsertUseConfig;
1212
#[derive(Debug)]
1313
pub(crate) enum ImportCandidate {
1414
/// Simple name like 'HashMap'
15-
UnqualifiedName(String),
15+
UnqualifiedName(PathImportCandidate),
1616
/// First part of the qualified name.
1717
/// For 'std::collections::HashMap', that will be 'std'.
18-
QualifierStart(String),
18+
QualifierStart(PathImportCandidate),
1919
/// A trait associated function (with no self parameter) or associated constant.
20-
/// For 'test_mod::TestEnum::test_function', `Type` is the `test_mod::TestEnum` expression type
21-
/// and `String` is the `test_function`
22-
TraitAssocItem(hir::Type, String),
20+
/// For 'test_mod::TestEnum::test_function', `ty` is the `test_mod::TestEnum` expression type
21+
/// and `name` is the `test_function`
22+
TraitAssocItem(TraitImportCandidate),
2323
/// A trait method with self parameter.
24-
/// For 'test_enum.test_method()', `Type` is the `test_enum` expression type
25-
/// and `String` is the `test_method`
26-
TraitMethod(hir::Type, String),
24+
/// For 'test_enum.test_method()', `ty` is the `test_enum` expression type
25+
/// and `name` is the `test_method`
26+
TraitMethod(TraitImportCandidate),
27+
}
28+
29+
#[derive(Debug)]
30+
pub(crate) struct TraitImportCandidate {
31+
pub ty: hir::Type,
32+
pub name: String,
33+
}
34+
35+
#[derive(Debug)]
36+
pub(crate) struct PathImportCandidate {
37+
pub name: String,
2738
}
2839

2940
#[derive(Debug)]
@@ -74,10 +85,10 @@ impl ImportAssets {
7485

7586
fn get_search_query(&self) -> &str {
7687
match &self.import_candidate {
77-
ImportCandidate::UnqualifiedName(name) => name,
78-
ImportCandidate::QualifierStart(qualifier_start) => qualifier_start,
79-
ImportCandidate::TraitAssocItem(_, trait_assoc_item_name) => trait_assoc_item_name,
80-
ImportCandidate::TraitMethod(_, trait_method_name) => trait_method_name,
88+
ImportCandidate::UnqualifiedName(candidate)
89+
| ImportCandidate::QualifierStart(candidate) => &candidate.name,
90+
ImportCandidate::TraitAssocItem(candidate)
91+
| ImportCandidate::TraitMethod(candidate) => &candidate.name,
8192
}
8293
}
8394

@@ -106,27 +117,29 @@ impl ImportAssets {
106117
prefixed: Option<hir::PrefixKind>,
107118
) -> BTreeSet<hir::ModPath> {
108119
let db = sema.db;
120+
let mut trait_candidates = FxHashSet::default();
109121
let current_crate = self.module_with_name_to_import.krate();
110-
imports_locator::find_imports(sema, current_crate, &self.get_search_query())
111-
.into_iter()
112-
.filter_map(|candidate| match &self.import_candidate {
113-
ImportCandidate::TraitAssocItem(assoc_item_type, _) => {
122+
123+
let filter = |candidate: Either<hir::ModuleDef, hir::MacroDef>| {
124+
trait_candidates.clear();
125+
match &self.import_candidate {
126+
ImportCandidate::TraitAssocItem(trait_candidate) => {
114127
let located_assoc_item = match candidate {
115-
Either::Left(ModuleDef::Function(located_function)) => located_function
116-
.as_assoc_item(db)
117-
.map(|assoc| assoc.container(db))
118-
.and_then(Self::assoc_to_trait),
119-
Either::Left(ModuleDef::Const(located_const)) => located_const
120-
.as_assoc_item(db)
121-
.map(|assoc| assoc.container(db))
122-
.and_then(Self::assoc_to_trait),
128+
Either::Left(ModuleDef::Function(located_function)) => {
129+
located_function.as_assoc_item(db)
130+
}
131+
Either::Left(ModuleDef::Const(located_const)) => {
132+
located_const.as_assoc_item(db)
133+
}
123134
_ => None,
124-
}?;
135+
}
136+
.map(|assoc| assoc.container(db))
137+
.and_then(Self::assoc_to_trait)?;
125138

126-
let mut trait_candidates = FxHashSet::default();
127139
trait_candidates.insert(located_assoc_item.into());
128140

129-
assoc_item_type
141+
trait_candidate
142+
.ty
130143
.iterate_path_candidates(
131144
db,
132145
current_crate,
@@ -137,7 +150,7 @@ impl ImportAssets {
137150
.map(ModuleDef::from)
138151
.map(Either::Left)
139152
}
140-
ImportCandidate::TraitMethod(function_callee, _) => {
153+
ImportCandidate::TraitMethod(trait_candidate) => {
141154
let located_assoc_item =
142155
if let Either::Left(ModuleDef::Function(located_function)) = candidate {
143156
located_function
@@ -148,10 +161,10 @@ impl ImportAssets {
148161
None
149162
}?;
150163

151-
let mut trait_candidates = FxHashSet::default();
152164
trait_candidates.insert(located_assoc_item.into());
153165

154-
function_callee
166+
trait_candidate
167+
.ty
155168
.iterate_method_candidates(
156169
db,
157170
current_crate,
@@ -165,12 +178,14 @@ impl ImportAssets {
165178
.map(Either::Left)
166179
}
167180
_ => Some(candidate),
168-
})
181+
}
182+
};
183+
184+
imports_locator::find_imports(sema, current_crate, &self.get_search_query())
185+
.into_iter()
186+
.filter_map(filter)
169187
.filter_map(|candidate| {
170-
let item: hir::ItemInNs = match candidate {
171-
Either::Left(module_def) => module_def.into(),
172-
Either::Right(macro_def) => macro_def.into(),
173-
};
188+
let item: hir::ItemInNs = candidate.either(Into::into, Into::into);
174189
if let Some(prefix_kind) = prefixed {
175190
self.module_with_name_to_import.find_use_path_prefixed(db, item, prefix_kind)
176191
} else {
@@ -196,13 +211,13 @@ impl ImportCandidate {
196211
sema: &Semantics<RootDatabase>,
197212
method_call: &ast::MethodCallExpr,
198213
) -> Option<Self> {
199-
if sema.resolve_method_call(method_call).is_some() {
200-
return None;
214+
match sema.resolve_method_call(method_call) {
215+
Some(_) => None,
216+
None => Some(Self::TraitMethod(TraitImportCandidate {
217+
ty: sema.type_of_expr(&method_call.receiver()?)?,
218+
name: method_call.name_ref()?.syntax().to_string(),
219+
})),
201220
}
202-
Some(Self::TraitMethod(
203-
sema.type_of_expr(&method_call.receiver()?)?,
204-
method_call.name_ref()?.syntax().to_string(),
205-
))
206221
}
207222

208223
fn for_regular_path(
@@ -214,7 +229,7 @@ impl ImportCandidate {
214229
}
215230

216231
let segment = path_under_caret.segment()?;
217-
if let Some(qualifier) = path_under_caret.qualifier() {
232+
let candidate = if let Some(qualifier) = path_under_caret.qualifier() {
218233
let qualifier_start = qualifier.syntax().descendants().find_map(ast::NameRef::cast)?;
219234
let qualifier_start_path =
220235
qualifier_start.syntax().ancestors().find_map(ast::Path::cast)?;
@@ -224,23 +239,30 @@ impl ImportCandidate {
224239
} else {
225240
sema.resolve_path(&qualifier)?
226241
};
227-
if let hir::PathResolution::Def(hir::ModuleDef::Adt(assoc_item_path)) =
228-
qualifier_resolution
229-
{
230-
Some(ImportCandidate::TraitAssocItem(
231-
assoc_item_path.ty(sema.db),
232-
segment.syntax().to_string(),
233-
))
234-
} else {
235-
None
242+
match qualifier_resolution {
243+
hir::PathResolution::Def(hir::ModuleDef::Adt(assoc_item_path)) => {
244+
ImportCandidate::TraitAssocItem(TraitImportCandidate {
245+
ty: assoc_item_path.ty(sema.db),
246+
name: segment.syntax().to_string(),
247+
})
248+
}
249+
_ => return None,
236250
}
237251
} else {
238-
Some(ImportCandidate::QualifierStart(qualifier_start.syntax().to_string()))
252+
ImportCandidate::QualifierStart(PathImportCandidate {
253+
name: qualifier_start.syntax().to_string(),
254+
})
239255
}
240256
} else {
241-
Some(ImportCandidate::UnqualifiedName(
242-
segment.syntax().descendants().find_map(ast::NameRef::cast)?.syntax().to_string(),
243-
))
244-
}
257+
ImportCandidate::UnqualifiedName(PathImportCandidate {
258+
name: segment
259+
.syntax()
260+
.descendants()
261+
.find_map(ast::NameRef::cast)?
262+
.syntax()
263+
.to_string(),
264+
})
265+
};
266+
Some(candidate)
245267
}
246268
}

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