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-rw-r--r--crates/ra_hir/src/module/imp.rs190
1 files changed, 0 insertions, 190 deletions
diff --git a/crates/ra_hir/src/module/imp.rs b/crates/ra_hir/src/module/imp.rs
deleted file mode 100644
index 3849026db..000000000
--- a/crates/ra_hir/src/module/imp.rs
+++ /dev/null
@@ -1,190 +0,0 @@
1use std::sync::Arc;
2
3use ra_syntax::ast::{self, NameOwner};
4use relative_path::RelativePathBuf;
5use rustc_hash::{FxHashMap, FxHashSet};
6use arrayvec::ArrayVec;
7use ra_db::{SourceRoot, SourceRootId, Cancelable, FileId};
8
9use crate::{
10 HirDatabase, Name, AsName,
11};
12
13use super::{
14 LinkData, LinkId, ModuleData, ModuleId, ModuleSource,
15 ModuleTree, Problem,
16};
17
18#[derive(Clone, Hash, PartialEq, Eq, Debug)]
19pub enum Submodule {
20 Declaration(Name),
21 Definition(Name, ModuleSource),
22}
23
24impl Submodule {
25 fn name(&self) -> &Name {
26 match self {
27 Submodule::Declaration(name) => name,
28 Submodule::Definition(name, _) => name,
29 }
30 }
31}
32
33pub(crate) fn modules<'a>(
34 root: impl ast::ModuleItemOwner<'a>,
35) -> impl Iterator<Item = (Name, ast::Module<'a>)> {
36 root.items()
37 .filter_map(|item| match item {
38 ast::ModuleItem::Module(m) => Some(m),
39 _ => None,
40 })
41 .filter_map(|module| {
42 let name = module.name()?.as_name();
43 Some((name, module))
44 })
45}
46
47pub(crate) fn module_tree(
48 db: &impl HirDatabase,
49 source_root: SourceRootId,
50) -> Cancelable<Arc<ModuleTree>> {
51 db.check_canceled()?;
52 let res = create_module_tree(db, source_root)?;
53 Ok(Arc::new(res))
54}
55
56fn create_module_tree<'a>(
57 db: &impl HirDatabase,
58 source_root: SourceRootId,
59) -> Cancelable<ModuleTree> {
60 let mut tree = ModuleTree::default();
61
62 let mut roots = FxHashMap::default();
63 let mut visited = FxHashSet::default();
64
65 let source_root = db.source_root(source_root);
66 for &file_id in source_root.files.values() {
67 let source = ModuleSource::new_file(file_id.into());
68 if visited.contains(&source) {
69 continue; // TODO: use explicit crate_roots here
70 }
71 assert!(!roots.contains_key(&file_id));
72 let module_id = build_subtree(
73 db,
74 &source_root,
75 &mut tree,
76 &mut visited,
77 &mut roots,
78 None,
79 source,
80 )?;
81 roots.insert(file_id, module_id);
82 }
83 Ok(tree)
84}
85
86fn build_subtree(
87 db: &impl HirDatabase,
88 source_root: &SourceRoot,
89 tree: &mut ModuleTree,
90 visited: &mut FxHashSet<ModuleSource>,
91 roots: &mut FxHashMap<FileId, ModuleId>,
92 parent: Option<LinkId>,
93 source: ModuleSource,
94) -> Cancelable<ModuleId> {
95 visited.insert(source);
96 let id = tree.push_mod(ModuleData {
97 source,
98 parent,
99 children: Vec::new(),
100 });
101 for sub in db.submodules(source)?.iter() {
102 let link = tree.push_link(LinkData {
103 name: sub.name().clone(),
104 owner: id,
105 points_to: Vec::new(),
106 problem: None,
107 });
108
109 let (points_to, problem) = match sub {
110 Submodule::Declaration(name) => {
111 let (points_to, problem) = resolve_submodule(db, source, &name);
112 let points_to = points_to
113 .into_iter()
114 .map(|file_id| match roots.remove(&file_id) {
115 Some(module_id) => {
116 tree.mods[module_id].parent = Some(link);
117 Ok(module_id)
118 }
119 None => build_subtree(
120 db,
121 source_root,
122 tree,
123 visited,
124 roots,
125 Some(link),
126 ModuleSource::new_file(file_id.into()),
127 ),
128 })
129 .collect::<Cancelable<Vec<_>>>()?;
130 (points_to, problem)
131 }
132 Submodule::Definition(_name, submodule_source) => {
133 let points_to = build_subtree(
134 db,
135 source_root,
136 tree,
137 visited,
138 roots,
139 Some(link),
140 *submodule_source,
141 )?;
142 (vec![points_to], None)
143 }
144 };
145
146 tree.links[link].points_to = points_to;
147 tree.links[link].problem = problem;
148 }
149 Ok(id)
150}
151
152fn resolve_submodule(
153 db: &impl HirDatabase,
154 source: ModuleSource,
155 name: &Name,
156) -> (Vec<FileId>, Option<Problem>) {
157 // FIXME: handle submodules of inline modules properly
158 let file_id = source.file_id().original_file(db);
159 let source_root_id = db.file_source_root(file_id);
160 let path = db.file_relative_path(file_id);
161 let root = RelativePathBuf::default();
162 let dir_path = path.parent().unwrap_or(&root);
163 let mod_name = path.file_stem().unwrap_or("unknown");
164 let is_dir_owner = mod_name == "mod" || mod_name == "lib" || mod_name == "main";
165
166 let file_mod = dir_path.join(format!("{}.rs", name));
167 let dir_mod = dir_path.join(format!("{}/mod.rs", name));
168 let file_dir_mod = dir_path.join(format!("{}/{}.rs", mod_name, name));
169 let mut candidates = ArrayVec::<[_; 2]>::new();
170 if is_dir_owner {
171 candidates.push(file_mod.clone());
172 candidates.push(dir_mod);
173 } else {
174 candidates.push(file_dir_mod.clone());
175 };
176 let sr = db.source_root(source_root_id);
177 let points_to = candidates
178 .into_iter()
179 .filter_map(|path| sr.files.get(&path))
180 .map(|&it| it)
181 .collect::<Vec<_>>();
182 let problem = if points_to.is_empty() {
183 Some(Problem::UnresolvedModule {
184 candidate: if is_dir_owner { file_mod } else { file_dir_mod },
185 })
186 } else {
187 None
188 };
189 (points_to, problem)
190}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-14 07:31:35 +0100