1 files changed, 21 insertions, 0 deletions

diff --git a/crates/ide/src/fn_references.rs b/crates/ide/src/fn_references.rs
new file mode 100644
index 000000000..ca91b98cf
--- /dev/null
+++ b/crates/ide/src/fn_references.rs
@@ -0,0 +1,21 @@
+use hir::Semantics;
+use ide_db::RootDatabase;
+use syntax::{ast, ast::NameOwner, AstNode, SyntaxNode};
+
+use crate::{runnables::has_test_related_attribute, FileId, FileRange};
+
+pub(crate) fn find_all_methods(db: &RootDatabase, file_id: FileId) -> Vec<FileRange> {
+    let sema = Semantics::new(db);
+    let source_file = sema.parse(file_id);
+    source_file.syntax().descendants().filter_map(|it| method_range(it, file_id)).collect()
+}
+
+pub(crate) fn method_range(item: SyntaxNode, file_id: FileId) -> Option<FileRange> {
+    ast::Fn::cast(item).and_then(|fn_def|{
+        if has_test_related_attribute(&fn_def) {
+            None
+        } else {
+            fn_def.name().map(|name| FileRange{ file_id, range: name.syntax().text_range() })
+        }
+    })
+}