From 33179a0ae1ba9a908cc34a4cf87599ed779b9886 Mon Sep 17 00:00:00 2001
From: Kirill Bulatov <mail4score@gmail.com>
Date: Mon, 7 Sep 2020 16:17:50 +0300
Subject: Move rust-related logic from vfs to base_db level

---
 crates/vfs/src/file_set.rs | 65 ++++------------------------------------------
 1 file changed, 5 insertions(+), 60 deletions(-)

(limited to 'crates/vfs')

diff --git a/crates/vfs/src/file_set.rs b/crates/vfs/src/file_set.rs
index cb65c17e0..4aa2d6526 100644
--- a/crates/vfs/src/file_set.rs
+++ b/crates/vfs/src/file_set.rs
@@ -26,74 +26,19 @@ impl FileSet {
         self.files.get(&path).copied()
     }
 
-    pub fn possible_sudmobule_names(&self, module_file: FileId) -> Vec<String> {
-        let directory_to_look_for_submodules = match self.get_directory_with_submodules(module_file)
-        {
-            Some(directory) => directory,
-            None => return Vec::new(),
-        };
-        self.paths
-            .iter()
-            .filter_map(|(_, path)| {
-                if path.parent()? == directory_to_look_for_submodules {
-                    path.file_name_and_extension()
-                } else {
-                    None
-                }
-            })
-            .filter_map(|file_name_and_extension| match file_name_and_extension {
-                // TODO kb do not include the module file name itself, if present
-                // TODO kb wrong resolution for nesСпаted non-file modules (mod tests {mod <|>)
-                // TODO kb in src/bin when a module is included into another,
-                // the included file gets "moved" into a directory below and now cannot add any other modules
-                ("mod", Some("rs")) | ("lib", Some("rs")) | ("main", Some("rs")) => None,
-                (file_name, Some("rs")) => Some(file_name.to_owned()),
-                (subdirectory_name, None) => {
-                    let mod_rs_path =
-                        directory_to_look_for_submodules.join(subdirectory_name)?.join("mod.rs")?;
-                    if self.files.contains_key(&mod_rs_path) {
-                        Some(subdirectory_name.to_owned())
-                    } else {
-                        None
-                    }
-                }
-                _ => None,
-            })
-            .collect()
+    pub fn file_for_path(&self, path: &VfsPath) -> Option<&FileId> {
+        self.files.get(path)
     }
 
-    fn get_directory_with_submodules(&self, module_file: FileId) -> Option<VfsPath> {
-        let module_file_path = &self.paths[&module_file];
-        let module_directory_path = module_file_path.parent()?;
-        match module_file_path.file_name_and_extension() {
-            Some(("mod", Some("rs"))) | Some(("lib", Some("rs"))) | Some(("main", Some("rs"))) => {
-                Some(module_directory_path)
-            }
-            Some((regular_rust_file_name, Some("rs"))) => {
-                if matches!(
-                    (
-                        module_directory_path
-                            .parent()
-                            .as_ref()
-                            .and_then(|path| path.file_name_and_extension()),
-                        module_directory_path.file_name_and_extension(),
-                    ),
-                    (Some(("src", None)), Some(("bin", None)))
-                ) {
-                    // files in /src/bin/ can import each other directly
-                    Some(module_directory_path)
-                } else {
-                    module_directory_path.join(regular_rust_file_name)
-                }
-            }
-            _ => None,
-        }
+    pub fn path_for_file(&self, file: &FileId) -> Option<&VfsPath> {
+        self.paths.get(file)
     }
 
     pub fn insert(&mut self, file_id: FileId, path: VfsPath) {
         self.files.insert(path.clone(), file_id);
         self.paths.insert(file_id, path);
     }
+
     pub fn iter(&self) -> impl Iterator<Item = FileId> + '_ {
         self.paths.keys().copied()
     }
-- 
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