From b3856568af3a21bfd13584e06fce852f84811fdb Mon Sep 17 00:00:00 2001
From: Wilco Kusee <wilcokusee@gmail.com>
Date: Fri, 29 Nov 2019 16:06:20 +0100
Subject: Push identifier check to rename function

---
 crates/ra_ide/src/lib.rs               | 9 +--------
 crates/ra_ide/src/references/rename.rs | 9 ++++++++-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/crates/ra_ide/src/lib.rs b/crates/ra_ide/src/lib.rs
index 1f88791d7..d1bff4a76 100644
--- a/crates/ra_ide/src/lib.rs
+++ b/crates/ra_ide/src/lib.rs
@@ -56,7 +56,7 @@ use ra_db::{
     salsa::{self, ParallelDatabase},
     CheckCanceled, Env, FileLoader, SourceDatabase,
 };
-use ra_syntax::{tokenize, SourceFile, SyntaxKind, TextRange, TextUnit};
+use ra_syntax::{SourceFile, TextRange, TextUnit};
 
 use crate::{db::LineIndexDatabase, display::ToNav, symbol_index::FileSymbol};
 
@@ -470,13 +470,6 @@ impl Analysis {
         position: FilePosition,
         new_name: &str,
     ) -> Cancelable<Option<RangeInfo<SourceChange>>> {
-        let tokens = tokenize(new_name);
-        if tokens.len() != 1
-            || (tokens[0].kind != SyntaxKind::IDENT && tokens[0].kind != SyntaxKind::UNDERSCORE)
-        {
-            return Ok(None);
-        }
-
         self.with_db(|db| references::rename(db, position, new_name))
     }
 
diff --git a/crates/ra_ide/src/references/rename.rs b/crates/ra_ide/src/references/rename.rs
index c1771edf8..b804d5f6d 100644
--- a/crates/ra_ide/src/references/rename.rs
+++ b/crates/ra_ide/src/references/rename.rs
@@ -2,7 +2,7 @@
 
 use hir::ModuleSource;
 use ra_db::{RelativePath, RelativePathBuf, SourceDatabase, SourceDatabaseExt};
-use ra_syntax::{algo::find_node_at_offset, ast, AstNode, SyntaxNode};
+use ra_syntax::{algo::find_node_at_offset, ast, tokenize, AstNode, SyntaxKind, SyntaxNode};
 use ra_text_edit::TextEdit;
 
 use crate::{
@@ -17,6 +17,13 @@ pub(crate) fn rename(
     position: FilePosition,
     new_name: &str,
 ) -> Option<RangeInfo<SourceChange>> {
+    let tokens = tokenize(new_name);
+    if tokens.len() != 1
+        || (tokens[0].kind != SyntaxKind::IDENT && tokens[0].kind != SyntaxKind::UNDERSCORE)
+    {
+        return None;
+    }
+
     let parse = db.parse(position.file_id);
     if let Some((ast_name, ast_module)) =
         find_name_and_module_at_offset(parse.tree().syntax(), position)
-- 
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