1 files changed, 0 insertions, 304 deletions

diff --git a/crates/ide/src/diagnostics/unlinked_file.rs b/crates/ide/src/diagnostics/unlinked_file.rs
deleted file mode 100644
index a5b2e3399..000000000
--- a/crates/ide/src/diagnostics/unlinked_file.rs
+++ /dev/null
@@ -1,304 +0,0 @@
-//! Diagnostic emitted for files that aren't part of any crate.
-
-use hir::db::DefDatabase;
-use ide_db::{
-    base_db::{FileId, FileLoader, SourceDatabase, SourceDatabaseExt},
-    source_change::SourceChange,
-    RootDatabase,
-};
-use syntax::{
-    ast::{self, ModuleItemOwner, NameOwner},
-    AstNode, TextRange, TextSize,
-};
-use text_edit::TextEdit;
-
-use crate::{
-    diagnostics::{fix, DiagnosticsContext},
-    Assist, Diagnostic,
-};
-
-#[derive(Debug)]
-pub(crate) struct UnlinkedFile {
-    pub(crate) file: FileId,
-}
-
-// Diagnostic: unlinked-file
-//
-// This diagnostic is shown for files that are not included in any crate, or files that are part of
-// crates rust-analyzer failed to discover. The file will not have IDE features available.
-pub(super) fn unlinked_file(ctx: &DiagnosticsContext, d: &UnlinkedFile) -> Diagnostic {
-    // Limit diagnostic to the first few characters in the file. This matches how VS Code
-    // renders it with the full span, but on other editors, and is less invasive.
-    let range = ctx.sema.db.parse(d.file).syntax_node().text_range();
-    // FIXME: This is wrong if one of the first three characters is not ascii: `//Ы`.
-    let range = range.intersect(TextRange::up_to(TextSize::of("..."))).unwrap_or(range);
-
-    Diagnostic::new("unlinked-file", "file not included in module tree", range)
-        .with_fixes(fixes(ctx, d))
-}
-
-fn fixes(ctx: &DiagnosticsContext, d: &UnlinkedFile) -> Option<Vec<Assist>> {
-    // If there's an existing module that could add `mod` or `pub mod` items to include the unlinked file,
-    // suggest that as a fix.
-
-    let source_root = ctx.sema.db.source_root(ctx.sema.db.file_source_root(d.file));
-    let our_path = source_root.path_for_file(&d.file)?;
-    let module_name = our_path.name_and_extension()?.0;
-
-    // Candidates to look for:
-    // - `mod.rs` in the same folder
-    //   - we also check `main.rs` and `lib.rs`
-    // - `$dir.rs` in the parent folder, where `$dir` is the directory containing `self.file_id`
-    let parent = our_path.parent()?;
-    let mut paths = vec![parent.join("mod.rs")?, parent.join("lib.rs")?, parent.join("main.rs")?];
-
-    // `submod/bla.rs` -> `submod.rs`
-    if let Some(newmod) = (|| {
-        let name = parent.name_and_extension()?.0;
-        parent.parent()?.join(&format!("{}.rs", name))
-    })() {
-        paths.push(newmod);
-    }
-
-    for path in &paths {
-        if let Some(parent_id) = source_root.file_for_path(path) {
-            for krate in ctx.sema.db.relevant_crates(*parent_id).iter() {
-                let crate_def_map = ctx.sema.db.crate_def_map(*krate);
-                for (_, module) in crate_def_map.modules() {
-                    if module.origin.is_inline() {
-                        // We don't handle inline `mod parent {}`s, they use different paths.
-                        continue;
-                    }
-
-                    if module.origin.file_id() == Some(*parent_id) {
-                        return make_fixes(ctx.sema.db, *parent_id, module_name, d.file);
-                    }
-                }
-            }
-        }
-    }
-
-    None
-}
-
-fn make_fixes(
-    db: &RootDatabase,
-    parent_file_id: FileId,
-    new_mod_name: &str,
-    added_file_id: FileId,
-) -> Option<Vec<Assist>> {
-    fn is_outline_mod(item: &ast::Item) -> bool {
-        matches!(item, ast::Item::Module(m) if m.item_list().is_none())
-    }
-
-    let mod_decl = format!("mod {};", new_mod_name);
-    let pub_mod_decl = format!("pub mod {};", new_mod_name);
-
-    let ast: ast::SourceFile = db.parse(parent_file_id).tree();
-
-    let mut mod_decl_builder = TextEdit::builder();
-    let mut pub_mod_decl_builder = TextEdit::builder();
-
-    // If there's an existing `mod m;` statement matching the new one, don't emit a fix (it's
-    // probably `#[cfg]`d out).
-    for item in ast.items() {
-        if let ast::Item::Module(m) = item {
-            if let Some(name) = m.name() {
-                if m.item_list().is_none() && name.to_string() == new_mod_name {
-                    cov_mark::hit!(unlinked_file_skip_fix_when_mod_already_exists);
-                    return None;
-                }
-            }
-        }
-    }
-
-    // If there are existing `mod m;` items, append after them (after the first group of them, rather).
-    match ast
-        .items()
-        .skip_while(|item| !is_outline_mod(item))
-        .take_while(|item| is_outline_mod(item))
-        .last()
-    {
-        Some(last) => {
-            cov_mark::hit!(unlinked_file_append_to_existing_mods);
-            let offset = last.syntax().text_range().end();
-            mod_decl_builder.insert(offset, format!("\n{}", mod_decl));
-            pub_mod_decl_builder.insert(offset, format!("\n{}", pub_mod_decl));
-        }
-        None => {
-            // Prepend before the first item in the file.
-            match ast.items().next() {
-                Some(item) => {
-                    cov_mark::hit!(unlinked_file_prepend_before_first_item);
-                    let offset = item.syntax().text_range().start();
-                    mod_decl_builder.insert(offset, format!("{}\n\n", mod_decl));
-                    pub_mod_decl_builder.insert(offset, format!("{}\n\n", pub_mod_decl));
-                }
-                None => {
-                    // No items in the file, so just append at the end.
-                    cov_mark::hit!(unlinked_file_empty_file);
-                    let offset = ast.syntax().text_range().end();
-                    mod_decl_builder.insert(offset, format!("{}\n", mod_decl));
-                    pub_mod_decl_builder.insert(offset, format!("{}\n", pub_mod_decl));
-                }
-            }
-        }
-    }
-
-    let trigger_range = db.parse(added_file_id).tree().syntax().text_range();
-    Some(vec![
-        fix(
-            "add_mod_declaration",
-            &format!("Insert `{}`", mod_decl),
-            SourceChange::from_text_edit(parent_file_id, mod_decl_builder.finish()),
-            trigger_range,
-        ),
-        fix(
-            "add_pub_mod_declaration",
-            &format!("Insert `{}`", pub_mod_decl),
-            SourceChange::from_text_edit(parent_file_id, pub_mod_decl_builder.finish()),
-            trigger_range,
-        ),
-    ])
-}
-
-#[cfg(test)]
-mod tests {
-    use crate::diagnostics::tests::{check_diagnostics, check_fix, check_fixes, check_no_fix};
-
-    #[test]
-    fn unlinked_file_prepend_first_item() {
-        cov_mark::check!(unlinked_file_prepend_before_first_item);
-        // Only tests the first one for `pub mod` since the rest are the same
-        check_fixes(
-            r#"
-//- /main.rs
-fn f() {}
-//- /foo.rs
-$0
-"#,
-            vec![
-                r#"
-mod foo;
-
-fn f() {}
-"#,
-                r#"
-pub mod foo;
-
-fn f() {}
-"#,
-            ],
-        );
-    }
-
-    #[test]
-    fn unlinked_file_append_mod() {
-        cov_mark::check!(unlinked_file_append_to_existing_mods);
-        check_fix(
-            r#"
-//- /main.rs
-//! Comment on top
-
-mod preexisting;
-
-mod preexisting2;
-
-struct S;
-
-mod preexisting_bottom;)
-//- /foo.rs
-$0
-"#,
-            r#"
-//! Comment on top
-
-mod preexisting;
-
-mod preexisting2;
-mod foo;
-
-struct S;
-
-mod preexisting_bottom;)
-"#,
-        );
-    }
-
-    #[test]
-    fn unlinked_file_insert_in_empty_file() {
-        cov_mark::check!(unlinked_file_empty_file);
-        check_fix(
-            r#"
-//- /main.rs
-//- /foo.rs
-$0
-"#,
-            r#"
-mod foo;
-"#,
-        );
-    }
-
-    #[test]
-    fn unlinked_file_old_style_modrs() {
-        check_fix(
-            r#"
-//- /main.rs
-mod submod;
-//- /submod/mod.rs
-// in mod.rs
-//- /submod/foo.rs
-$0
-"#,
-            r#"
-// in mod.rs
-mod foo;
-"#,
-        );
-    }
-
-    #[test]
-    fn unlinked_file_new_style_mod() {
-        check_fix(
-            r#"
-//- /main.rs
-mod submod;
-//- /submod.rs
-//- /submod/foo.rs
-$0
-"#,
-            r#"
-mod foo;
-"#,
-        );
-    }
-
-    #[test]
-    fn unlinked_file_with_cfg_off() {
-        cov_mark::check!(unlinked_file_skip_fix_when_mod_already_exists);
-        check_no_fix(
-            r#"
-//- /main.rs
-#[cfg(never)]
-mod foo;
-
-//- /foo.rs
-$0
-"#,
-        );
-    }
-
-    #[test]
-    fn unlinked_file_with_cfg_on() {
-        check_diagnostics(
-            r#"
-//- /main.rs
-#[cfg(not(never))]
-mod foo;
-
-//- /foo.rs
-"#,
-        );
-    }
-}