8 files changed, 67 insertions, 81 deletions

diff --git a/crates/ra_hir_def/src/diagnostics.rs b/crates/ra_hir_def/src/diagnostics.rs
index 510c5e064..30db48f86 100644
--- a/crates/ra_hir_def/src/diagnostics.rs
+++ b/crates/ra_hir_def/src/diagnostics.rs
@@ -3,7 +3,6 @@
 use std::any::Any;
 
 use hir_expand::diagnostics::Diagnostic;
-use ra_db::RelativePathBuf;
 use ra_syntax::{ast, AstPtr, SyntaxNodePtr};
 
 use hir_expand::{HirFileId, InFile};
@@ -12,7 +11,7 @@ use hir_expand::{HirFileId, InFile};
 pub struct UnresolvedModule {
     pub file: HirFileId,
     pub decl: AstPtr<ast::Module>,
-    pub candidate: RelativePathBuf,
+    pub candidate: String,
 }
 
 impl Diagnostic for UnresolvedModule {
diff --git a/crates/ra_hir_def/src/nameres.rs b/crates/ra_hir_def/src/nameres.rs
index f279c2ad4..b3e5f491a 100644
--- a/crates/ra_hir_def/src/nameres.rs
+++ b/crates/ra_hir_def/src/nameres.rs
@@ -296,7 +296,6 @@ pub enum ModuleSource {
 
 mod diagnostics {
     use hir_expand::diagnostics::DiagnosticSink;
-    use ra_db::RelativePathBuf;
     use ra_syntax::{ast, AstPtr};
 
     use crate::{db::DefDatabase, diagnostics::UnresolvedModule, nameres::LocalModuleId, AstId};
@@ -306,7 +305,7 @@ mod diagnostics {
         UnresolvedModule {
             module: LocalModuleId,
             declaration: AstId<ast::Module>,
-            candidate: RelativePathBuf,
+            candidate: String,
         },
     }
 
diff --git a/crates/ra_hir_def/src/nameres/mod_resolution.rs b/crates/ra_hir_def/src/nameres/mod_resolution.rs
index cede4a6fc..19fe0615a 100644
--- a/crates/ra_hir_def/src/nameres/mod_resolution.rs
+++ b/crates/ra_hir_def/src/nameres/mod_resolution.rs
@@ -44,7 +44,7 @@ impl ModDir {
         file_id: HirFileId,
         name: &Name,
         attr_path: Option<&SmolStr>,
-    ) -> Result<(FileId, ModDir), RelativePathBuf> {
+    ) -> Result<(FileId, ModDir), String> {
         let file_id = file_id.original_file(db.upcast());
 
         let mut candidate_files = Vec::new();
@@ -52,11 +52,11 @@ impl ModDir {
             Some(attr_path) => {
                 let base =
                     if self.root_non_dir_owner { self.path.parent().unwrap() } else { &self.path };
-                candidate_files.push(base.join(attr_path))
+                candidate_files.push(base.join(attr_path).to_string())
             }
             None => {
-                candidate_files.push(self.path.join(&format!("{}.rs", name)));
-                candidate_files.push(self.path.join(&format!("{}/mod.rs", name)));
+                candidate_files.push(self.path.join(&format!("{}.rs", name)).to_string());
+                candidate_files.push(self.path.join(&format!("{}/mod.rs", name)).to_string());
             }
         };
 
diff --git a/crates/ra_ide/src/diagnostics.rs b/crates/ra_ide/src/diagnostics.rs
index e1bfd72f9..fd9abb55b 100644
--- a/crates/ra_ide/src/diagnostics.rs
+++ b/crates/ra_ide/src/diagnostics.rs
@@ -11,7 +11,7 @@ use hir::{
     Semantics,
 };
 use itertools::Itertools;
-use ra_db::{RelativePath, SourceDatabase, SourceDatabaseExt};
+use ra_db::SourceDatabase;
 use ra_ide_db::RootDatabase;
 use ra_prof::profile;
 use ra_syntax::{
@@ -57,14 +57,10 @@ pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic>
     })
     .on::<hir::diagnostics::UnresolvedModule, _>(|d| {
         let original_file = d.source().file_id.original_file(db);
-        let source_root = db.file_source_root(original_file);
-        let path = db
-            .file_relative_path(original_file)
-            .parent()
-            .unwrap_or_else(|| RelativePath::new(""))
-            .join(&d.candidate);
-        let fix =
-            Fix::new("Create module", FileSystemEdit::CreateFile { source_root, path }.into());
+        let fix = Fix::new(
+            "Create module",
+            FileSystemEdit::CreateFile { anchor: original_file, dst: d.candidate.clone() }.into(),
+        );
         res.borrow_mut().push(Diagnostic {
             range: sema.diagnostics_range(d).range,
             message: d.message(),
@@ -612,10 +608,10 @@ mod tests {
                             source_file_edits: [],
                             file_system_edits: [
                                 CreateFile {
-                                    source_root: SourceRootId(
-                                        0,
+                                    anchor: FileId(
+                                        1,
                                     ),
-                                    path: "foo.rs",
+                                    dst: "foo.rs",
                                 },
                             ],
                             is_snippet: false,
diff --git a/crates/ra_ide/src/references/rename.rs b/crates/ra_ide/src/references/rename.rs
index 915d4f4d3..c4f07f905 100644
--- a/crates/ra_ide/src/references/rename.rs
+++ b/crates/ra_ide/src/references/rename.rs
@@ -1,7 +1,7 @@
 //! FIXME: write short doc here
 
 use hir::{ModuleSource, Semantics};
-use ra_db::{RelativePath, RelativePathBuf, SourceDatabaseExt};
+use ra_db::{RelativePathBuf, SourceDatabaseExt};
 use ra_ide_db::RootDatabase;
 use ra_syntax::{
     algo::find_node_at_offset, ast, ast::TypeAscriptionOwner, lex_single_valid_syntax_kind,
@@ -92,23 +92,14 @@ fn rename_mod(
             ModuleSource::SourceFile(..) => {
                 let mod_path: RelativePathBuf = sema.db.file_relative_path(file_id);
                 // mod is defined in path/to/dir/mod.rs
-                let dst_path = if mod_path.file_stem() == Some("mod") {
-                    mod_path
-                        .parent()
-                        .and_then(|p| p.parent())
-                        .or_else(|| Some(RelativePath::new("")))
-                        .map(|p| p.join(new_name).join("mod.rs"))
+                let dst = if mod_path.file_stem() == Some("mod") {
+                    format!("../{}/mod.rs", new_name)
                 } else {
-                    Some(mod_path.with_file_name(new_name).with_extension("rs"))
+                    format!("{}.rs", new_name)
                 };
-                if let Some(path) = dst_path {
-                    let move_file = FileSystemEdit::MoveFile {
-                        src: file_id,
-                        dst_source_root: sema.db.file_source_root(position.file_id),
-                        dst_path: path,
-                    };
-                    file_system_edits.push(move_file);
-                }
+                let move_file =
+                    FileSystemEdit::MoveFile { src: file_id, anchor: position.file_id, dst };
+                file_system_edits.push(move_file);
             }
             ModuleSource::Module(..) => {}
         }
@@ -623,16 +614,16 @@ mod tests {
     #[test]
     fn test_rename_mod() {
         let (analysis, position) = analysis_and_position(
-            "
-            //- /lib.rs
-            mod bar;
+            r#"
+//- /lib.rs
+mod bar;
 
-            //- /bar.rs
-            mod foo<|>;
+//- /bar.rs
+mod foo<|>;
 
-            //- /bar/foo.rs
-            // emtpy
-            ",
+//- /bar/foo.rs
+// emtpy
+            "#,
         );
         let new_name = "foo2";
         let source_change = analysis.rename(position, new_name).unwrap();
@@ -662,10 +653,10 @@ mod tests {
                             src: FileId(
                                 3,
                             ),
-                            dst_source_root: SourceRootId(
-                                0,
+                            anchor: FileId(
+                                2,
                             ),
-                            dst_path: "bar/foo2.rs",
+                            dst: "foo2.rs",
                         },
                     ],
                     is_snippet: false,
@@ -678,12 +669,12 @@ mod tests {
     #[test]
     fn test_rename_mod_in_dir() {
         let (analysis, position) = analysis_and_position(
-            "
-            //- /lib.rs
-            mod fo<|>o;
-            //- /foo/mod.rs
-            // emtpy
-            ",
+            r#"
+//- /lib.rs
+mod fo<|>o;
+//- /foo/mod.rs
+// emtpy
+            "#,
         );
         let new_name = "foo2";
         let source_change = analysis.rename(position, new_name).unwrap();
@@ -713,10 +704,10 @@ mod tests {
                             src: FileId(
                                 2,
                             ),
-                            dst_source_root: SourceRootId(
-                                0,
+                            anchor: FileId(
+                                1,
                             ),
-                            dst_path: "foo2/mod.rs",
+                            dst: "../foo2/mod.rs",
                         },
                     ],
                     is_snippet: false,
@@ -753,19 +744,19 @@ mod tests {
     #[test]
     fn test_rename_mod_filename_and_path() {
         let (analysis, position) = analysis_and_position(
-            "
-            //- /lib.rs
-            mod bar;
-            fn f() {
-                bar::foo::fun()
-            }
+            r#"
+//- /lib.rs
+mod bar;
+fn f() {
+    bar::foo::fun()
+}
 
-            //- /bar.rs
-            pub mod foo<|>;
+//- /bar.rs
+pub mod foo<|>;
 
-            //- /bar/foo.rs
-            // pub fn fun() {}
-            ",
+//- /bar/foo.rs
+// pub fn fun() {}
+            "#,
         );
         let new_name = "foo2";
         let source_change = analysis.rename(position, new_name).unwrap();
@@ -808,10 +799,10 @@ mod tests {
                             src: FileId(
                                 3,
                             ),
-                            dst_source_root: SourceRootId(
-                                0,
+                            anchor: FileId(
+                                2,
                             ),
-                            dst_path: "bar/foo2.rs",
+                            dst: "foo2.rs",
                         },
                     ],
                     is_snippet: false,
diff --git a/crates/ra_ide_db/src/source_change.rs b/crates/ra_ide_db/src/source_change.rs
index f40ae8304..0bbd3c3e5 100644
--- a/crates/ra_ide_db/src/source_change.rs
+++ b/crates/ra_ide_db/src/source_change.rs
@@ -3,7 +3,7 @@
 //!
 //! It can be viewed as a dual for `AnalysisChange`.
 
-use ra_db::{FileId, RelativePathBuf, SourceRootId};
+use ra_db::FileId;
 use ra_text_edit::TextEdit;
 
 #[derive(Debug, Clone)]
@@ -44,8 +44,8 @@ impl From<Vec<SourceFileEdit>> for SourceChange {
 
 #[derive(Debug, Clone)]
 pub enum FileSystemEdit {
-    CreateFile { source_root: SourceRootId, path: RelativePathBuf },
-    MoveFile { src: FileId, dst_source_root: SourceRootId, dst_path: RelativePathBuf },
+    CreateFile { anchor: FileId, dst: String },
+    MoveFile { src: FileId, anchor: FileId, dst: String },
 }
 
 impl From<FileSystemEdit> for SourceChange {
diff --git a/crates/rust-analyzer/src/global_state.rs b/crates/rust-analyzer/src/global_state.rs
index 9d5685d88..73ca2a709 100644
--- a/crates/rust-analyzer/src/global_state.rs
+++ b/crates/rust-analyzer/src/global_state.rs
@@ -16,7 +16,7 @@ use ra_ide::{
     Analysis, AnalysisChange, AnalysisHost, CrateGraph, FileId, LibraryData, SourceRootId,
 };
 use ra_project_model::{ProcMacroClient, ProjectWorkspace};
-use ra_vfs::{LineEndings, RootEntry, Vfs, VfsChange, VfsFile, VfsRoot, VfsTask, Watch};
+use ra_vfs::{LineEndings, RootEntry, Vfs, VfsChange, VfsFile, VfsTask, Watch};
 use relative_path::RelativePathBuf;
 use stdx::format_to;
 
@@ -298,9 +298,10 @@ impl GlobalStateSnapshot {
         self.vfs.read().file_line_endings(VfsFile(id.0))
     }
 
-    pub fn path_to_url(&self, root: SourceRootId, path: &RelativePathBuf) -> Url {
-        let base = self.vfs.read().root2path(VfsRoot(root.0));
-        let path = path.to_path(base);
+    pub fn anchored_path(&self, file_id: FileId, path: &str) -> Url {
+        let mut base = self.vfs.read().file2path(VfsFile(file_id.0));
+        base.pop();
+        let path = base.join(path);
         url_from_abs_path(&path)
     }
 
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 881aa1c55..2851b4d31 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -528,13 +528,13 @@ pub(crate) fn resource_op(
     file_system_edit: FileSystemEdit,
 ) -> lsp_types::ResourceOp {
     match file_system_edit {
-        FileSystemEdit::CreateFile { source_root, path } => {
-            let uri = snap.path_to_url(source_root, &path);
+        FileSystemEdit::CreateFile { anchor, dst } => {
+            let uri = snap.anchored_path(anchor, &dst);
             lsp_types::ResourceOp::Create(lsp_types::CreateFile { uri, options: None })
         }
-        FileSystemEdit::MoveFile { src, dst_source_root, dst_path } => {
+        FileSystemEdit::MoveFile { src, anchor, dst } => {
             let old_uri = snap.file_id_to_url(src);
-            let new_uri = snap.path_to_url(dst_source_root, &dst_path);
+            let new_uri = snap.anchored_path(anchor, &dst);
             lsp_types::ResourceOp::Rename(lsp_types::RenameFile { old_uri, new_uri, options: None })
         }
     }