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-rw-r--r--crates/ra_hir_def/src/nameres/collector.rs5
-rw-r--r--crates/ra_hir_def/src/nameres/raw.rs15
-rw-r--r--crates/ra_hir_def/src/path.rs7
-rw-r--r--crates/ra_hir_def/src/path/lower/lower_use.rs14
4 files changed, 30 insertions, 11 deletions
diff --git a/crates/ra_hir_def/src/nameres/collector.rs b/crates/ra_hir_def/src/nameres/collector.rs
index 7499dff31..193067f73 100644
--- a/crates/ra_hir_def/src/nameres/collector.rs
+++ b/crates/ra_hir_def/src/nameres/collector.rs
@@ -438,7 +438,10 @@ where
438 } else { 438 } else {
439 match import.path.segments.last() { 439 match import.path.segments.last() {
440 Some(last_segment) => { 440 Some(last_segment) => {
441 let name = import.alias.clone().unwrap_or_else(|| last_segment.clone()); 441 let name = match &import.alias {
442 raw::ImportAlias::Alias(name) => name.clone(),
443 _ => last_segment.clone(), // "use as ;" and "use as _;" are treated the same way
444 };
442 log::debug!("resolved import {:?} ({:?}) to {:?}", name, import, def); 445 log::debug!("resolved import {:?} ({:?}) to {:?}", name, import, def);
443 446
444 // extern crates in the crate root are special-cased to insert entries into the extern prelude: rust-lang/rust#54658 447 // extern crates in the crate root are special-cased to insert entries into the extern prelude: rust-lang/rust#54658
diff --git a/crates/ra_hir_def/src/nameres/raw.rs b/crates/ra_hir_def/src/nameres/raw.rs
index fac1169ef..f068b4d4e 100644
--- a/crates/ra_hir_def/src/nameres/raw.rs
+++ b/crates/ra_hir_def/src/nameres/raw.rs
@@ -145,7 +145,7 @@ impl_arena_id!(Import);
145#[derive(Debug, Clone, PartialEq, Eq)] 145#[derive(Debug, Clone, PartialEq, Eq)]
146pub struct ImportData { 146pub struct ImportData {
147 pub(super) path: ModPath, 147 pub(super) path: ModPath,
148 pub(super) alias: Option<Name>, 148 pub(super) alias: ImportAlias,
149 pub(super) is_glob: bool, 149 pub(super) is_glob: bool,
150 pub(super) is_prelude: bool, 150 pub(super) is_prelude: bool,
151 pub(super) is_extern_crate: bool, 151 pub(super) is_extern_crate: bool,
@@ -153,6 +153,13 @@ pub struct ImportData {
153 pub(super) visibility: RawVisibility, 153 pub(super) visibility: RawVisibility,
154} 154}
155 155
156#[derive(Debug, Clone, PartialEq, Eq)]
157pub enum ImportAlias {
158 NoAlias,
159 Unnamed, // use Foo as _;
160 Alias(Name),
161}
162
156#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] 163#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
157pub(super) struct Def(RawId); 164pub(super) struct Def(RawId);
158impl_arena_id!(Def); 165impl_arena_id!(Def);
@@ -353,7 +360,11 @@ impl RawItemsCollector {
353 let path = ModPath::from_name_ref(&name_ref); 360 let path = ModPath::from_name_ref(&name_ref);
354 let visibility = 361 let visibility =
355 RawVisibility::from_ast_with_hygiene(extern_crate.visibility(), &self.hygiene); 362 RawVisibility::from_ast_with_hygiene(extern_crate.visibility(), &self.hygiene);
356 let alias = extern_crate.alias().and_then(|a| a.name()).map(|it| it.as_name()); 363 let alias = extern_crate.alias().map_or(ImportAlias::NoAlias, |a| {
364 a.name()
365 .map(|it| it.as_name())
366 .map_or(ImportAlias::Unnamed, |a| ImportAlias::Alias(a))
367 });
357 let attrs = self.parse_attrs(&extern_crate); 368 let attrs = self.parse_attrs(&extern_crate);
358 // FIXME: cfg_attr 369 // FIXME: cfg_attr
359 let is_macro_use = extern_crate.has_atom_attr("macro_use"); 370 let is_macro_use = extern_crate.has_atom_attr("macro_use");
diff --git a/crates/ra_hir_def/src/path.rs b/crates/ra_hir_def/src/path.rs
index ab290e2c9..27ccf6643 100644
--- a/crates/ra_hir_def/src/path.rs
+++ b/crates/ra_hir_def/src/path.rs
@@ -57,7 +57,12 @@ impl ModPath {
57 pub(crate) fn expand_use_item( 57 pub(crate) fn expand_use_item(
58 item_src: InFile<ast::UseItem>, 58 item_src: InFile<ast::UseItem>,
59 hygiene: &Hygiene, 59 hygiene: &Hygiene,
60 mut cb: impl FnMut(ModPath, &ast::UseTree, /* is_glob */ bool, Option<Name>), 60 mut cb: impl FnMut(
61 ModPath,
62 &ast::UseTree,
63 /* is_glob */ bool,
64 crate::nameres::raw::ImportAlias,
65 ),
61 ) { 66 ) {
62 if let Some(tree) = item_src.value.use_tree() { 67 if let Some(tree) = item_src.value.use_tree() {
63 lower::lower_use_tree(None, tree, hygiene, &mut cb); 68 lower::lower_use_tree(None, tree, hygiene, &mut cb);
diff --git a/crates/ra_hir_def/src/path/lower/lower_use.rs b/crates/ra_hir_def/src/path/lower/lower_use.rs
index 531878174..f693cefbc 100644
--- a/crates/ra_hir_def/src/path/lower/lower_use.rs
+++ b/crates/ra_hir_def/src/path/lower/lower_use.rs
@@ -4,20 +4,18 @@
4use std::iter; 4use std::iter;
5 5
6use either::Either; 6use either::Either;
7use hir_expand::{ 7use hir_expand::{hygiene::Hygiene, name::AsName};
8 hygiene::Hygiene,
9 name::{AsName, Name},
10};
11use ra_syntax::ast::{self, NameOwner}; 8use ra_syntax::ast::{self, NameOwner};
12use test_utils::tested_by; 9use test_utils::tested_by;
13 10
11use crate::nameres::raw::ImportAlias;
14use crate::path::{ModPath, PathKind}; 12use crate::path::{ModPath, PathKind};
15 13
16pub(crate) fn lower_use_tree( 14pub(crate) fn lower_use_tree(
17 prefix: Option<ModPath>, 15 prefix: Option<ModPath>,
18 tree: ast::UseTree, 16 tree: ast::UseTree,
19 hygiene: &Hygiene, 17 hygiene: &Hygiene,
20 cb: &mut dyn FnMut(ModPath, &ast::UseTree, bool, Option<Name>), 18 cb: &mut dyn FnMut(ModPath, &ast::UseTree, bool, ImportAlias),
21) { 19) {
22 if let Some(use_tree_list) = tree.use_tree_list() { 20 if let Some(use_tree_list) = tree.use_tree_list() {
23 let prefix = match tree.path() { 21 let prefix = match tree.path() {
@@ -34,7 +32,9 @@ pub(crate) fn lower_use_tree(
34 lower_use_tree(prefix.clone(), child_tree, hygiene, cb); 32 lower_use_tree(prefix.clone(), child_tree, hygiene, cb);
35 } 33 }
36 } else { 34 } else {
37 let alias = tree.alias().and_then(|a| a.name()).map(|a| a.as_name()); 35 let alias = tree.alias().map_or(ImportAlias::NoAlias, |a| {
36 a.name().map(|it| it.as_name()).map_or(ImportAlias::Unnamed, |a| ImportAlias::Alias(a))
37 });
38 let is_glob = tree.has_star(); 38 let is_glob = tree.has_star();
39 if let Some(ast_path) = tree.path() { 39 if let Some(ast_path) = tree.path() {
40 // Handle self in a path. 40 // Handle self in a path.
@@ -57,7 +57,7 @@ pub(crate) fn lower_use_tree(
57 } else if is_glob { 57 } else if is_glob {
58 tested_by!(glob_enum_group); 58 tested_by!(glob_enum_group);
59 if let Some(prefix) = prefix { 59 if let Some(prefix) = prefix {
60 cb(prefix, &tree, is_glob, None) 60 cb(prefix, &tree, is_glob, ImportAlias::NoAlias)
61 } 61 }
62 } 62 }
63 } 63 }