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-rw-r--r--crates/ra_ide/src/references/rename.rs52
1 files changed, 51 insertions, 1 deletions
diff --git a/crates/ra_ide/src/references/rename.rs b/crates/ra_ide/src/references/rename.rs
index ea6b354c2..b804d5f6d 100644
--- a/crates/ra_ide/src/references/rename.rs
+++ b/crates/ra_ide/src/references/rename.rs
@@ -2,7 +2,7 @@
2 2
3use hir::ModuleSource; 3use hir::ModuleSource;
4use ra_db::{RelativePath, RelativePathBuf, SourceDatabase, SourceDatabaseExt}; 4use ra_db::{RelativePath, RelativePathBuf, SourceDatabase, SourceDatabaseExt};
5use ra_syntax::{algo::find_node_at_offset, ast, AstNode, SyntaxNode}; 5use ra_syntax::{algo::find_node_at_offset, ast, tokenize, AstNode, SyntaxKind, SyntaxNode};
6use ra_text_edit::TextEdit; 6use ra_text_edit::TextEdit;
7 7
8use crate::{ 8use crate::{
@@ -17,6 +17,13 @@ pub(crate) fn rename(
17 position: FilePosition, 17 position: FilePosition,
18 new_name: &str, 18 new_name: &str,
19) -> Option<RangeInfo<SourceChange>> { 19) -> Option<RangeInfo<SourceChange>> {
20 let tokens = tokenize(new_name);
21 if tokens.len() != 1
22 || (tokens[0].kind != SyntaxKind::IDENT && tokens[0].kind != SyntaxKind::UNDERSCORE)
23 {
24 return None;
25 }
26
20 let parse = db.parse(position.file_id); 27 let parse = db.parse(position.file_id);
21 if let Some((ast_name, ast_module)) = 28 if let Some((ast_name, ast_module)) =
22 find_name_and_module_at_offset(parse.tree().syntax(), position) 29 find_name_and_module_at_offset(parse.tree().syntax(), position)
@@ -124,6 +131,49 @@ mod tests {
124 }; 131 };
125 132
126 #[test] 133 #[test]
134 fn test_rename_to_underscore() {
135 test_rename(
136 r#"
137 fn main() {
138 let i<|> = 1;
139 }"#,
140 "_",
141 r#"
142 fn main() {
143 let _ = 1;
144 }"#,
145 );
146 }
147
148 #[test]
149 fn test_rename_to_raw_identifier() {
150 test_rename(
151 r#"
152 fn main() {
153 let i<|> = 1;
154 }"#,
155 "r#fn",
156 r#"
157 fn main() {
158 let r#fn = 1;
159 }"#,
160 );
161 }
162
163 #[test]
164 fn test_rename_to_invalid_identifier() {
165 let (analysis, position) = single_file_with_position(
166 "
167 fn main() {
168 let i<|> = 1;
169 }",
170 );
171 let new_name = "invalid!";
172 let source_change = analysis.rename(position, new_name).unwrap();
173 assert!(source_change.is_none());
174 }
175
176 #[test]
127 fn test_rename_for_local() { 177 fn test_rename_for_local() {
128 test_rename( 178 test_rename(
129 r#" 179 r#"