1 //! Renaming functionality.
3 //! This is mostly front-end for [`ide_db::rename`], but it also includes the
4 //! tests. This module also implements a couple of magic tricks, like renaming
5 //! `self` and to `self` (to switch between associated function and method).
7 use hir::{AsAssocItem, InFile, Semantics};
10 defs::{Definition, NameClass, NameRefClass},
11 rename::{bail, format_err, source_edit_from_references, IdentifierKind},
14 use itertools::Itertools;
15 use stdx::{always, never};
16 use syntax::{ast, AstNode, SyntaxNode};
18 use text_edit::TextEdit;
20 use crate::{FilePosition, RangeInfo, SourceChange};
22 pub use ide_db::rename::RenameError;
24 type RenameResult<T> = Result<T, RenameError>;
26 /// Prepares a rename. The sole job of this function is to return the TextRange of the thing that is
27 /// being targeted for a rename.
28 pub(crate) fn prepare_rename(
30 position: FilePosition,
31 ) -> RenameResult<RangeInfo<()>> {
32 let sema = Semantics::new(db);
33 let source_file = sema.parse(position.file_id);
34 let syntax = source_file.syntax();
36 let res = find_definitions(&sema, syntax, position)?
37 .map(|(name_like, def)| {
38 // ensure all ranges are valid
40 if def.range_for_rename(&sema).is_none() {
41 bail!("No references found at position")
43 let frange = sema.original_range(name_like.syntax());
46 frange.range.contains_inclusive(position.offset)
47 && frange.file_id == position.file_id
51 .reduce(|acc, cur| match (acc, cur) {
52 // ensure all ranges are the same
53 (Ok(acc_inner), Ok(cur_inner)) if acc_inner == cur_inner => Ok(acc_inner),
54 (Err(e), _) => Err(e),
55 _ => bail!("inconsistent text range"),
59 // ensure at least one definition was found
60 Some(res) => res.map(|range| RangeInfo::new(range, ())),
61 None => bail!("No references found at position"),
67 // Renames the item below the cursor and all of its references
70 // | Editor | Shortcut
72 // | VS Code | kbd:[F2]
75 // image::https://user-images.githubusercontent.com/48062697/113065582-055aae80-91b1-11eb-8ade-2b58e6d81883.gif[]
78 position: FilePosition,
80 ) -> RenameResult<SourceChange> {
81 let sema = Semantics::new(db);
82 let source_file = sema.parse(position.file_id);
83 let syntax = source_file.syntax();
85 let defs = find_definitions(&sema, syntax, position)?;
87 let ops: RenameResult<Vec<SourceChange>> = defs
88 .map(|(_namelike, def)| {
89 if let Definition::Local(local) = def {
90 if let Some(self_param) = local.as_self_param(sema.db) {
91 cov_mark::hit!(rename_self_to_param);
92 return rename_self_to_param(&sema, local, self_param, new_name);
94 if new_name == "self" {
95 cov_mark::hit!(rename_to_self);
96 return rename_to_self(&sema, local);
99 def.rename(&sema, new_name)
104 .reduce(|acc, elem| acc.merge(elem))
105 .ok_or_else(|| format_err!("No references found at position"))
108 /// Called by the client when it is about to rename a file.
109 pub(crate) fn will_rename_file(
113 ) -> Option<SourceChange> {
114 let sema = Semantics::new(db);
115 let module = sema.to_module_def(file_id)?;
116 let def = Definition::ModuleDef(module.into());
117 let mut change = def.rename(&sema, new_name_stem).ok()?;
118 change.file_system_edits.clear();
123 sema: &Semantics<RootDatabase>,
125 position: FilePosition,
126 ) -> RenameResult<impl Iterator<Item = (ast::NameLike, Definition)>> {
128 .find_nodes_at_offset_with_descend::<ast::NameLike>(syntax, position.offset)
130 let res = match &name_like {
131 // renaming aliases would rename the item being aliased as the HIR doesn't track aliases yet
132 ast::NameLike::Name(name)
136 .map_or(false, |it| ast::Rename::can_cast(it.kind())) =>
138 bail!("Renaming aliases is currently unsupported")
140 ast::NameLike::Name(name) => NameClass::classify(sema, name)
141 .map(|class| match class {
142 NameClass::Definition(it) | NameClass::ConstReference(it) => it,
143 NameClass::PatFieldShorthand { local_def, field_ref: _ } => {
144 Definition::Local(local_def)
147 .map(|def| (name_like.clone(), def))
148 .ok_or_else(|| format_err!("No references found at position")),
149 ast::NameLike::NameRef(name_ref) => {
150 NameRefClass::classify(sema, name_ref)
151 .map(|class| match class {
152 NameRefClass::Definition(def) => def,
153 NameRefClass::FieldShorthand { local_ref, field_ref: _ } => {
154 Definition::Local(local_ref)
157 .ok_or_else(|| format_err!("No references found at position"))
159 // if the name differs from the definitions name it has to be an alias
162 .map_or(false, |it| it.to_smol_str() != name_ref.text().as_str())
164 Err(format_err!("Renaming aliases is currently unsupported"))
166 Ok((name_like.clone(), def))
170 ast::NameLike::Lifetime(lifetime) => {
171 NameRefClass::classify_lifetime(sema, lifetime)
172 .and_then(|class| match class {
173 NameRefClass::Definition(def) => Some(def),
177 NameClass::classify_lifetime(sema, lifetime).and_then(|it| match it {
178 NameClass::Definition(it) => Some(it),
182 .map(|def| (name_like, def))
183 .ok_or_else(|| format_err!("No references found at position"))
189 let res: RenameResult<Vec<_>> = symbols.collect();
193 // FIXME: some semantic duplication between "empty vec" and "Err()"
194 Err(format_err!("No references found at position"))
196 // remove duplicates, comparing `Definition`s
197 Ok(v.into_iter().unique_by(|t| t.1))
204 fn rename_to_self(sema: &Semantics<RootDatabase>, local: hir::Local) -> RenameResult<SourceChange> {
205 if never!(local.is_self(sema.db)) {
206 bail!("rename_to_self invoked on self");
209 let fn_def = match local.parent(sema.db) {
210 hir::DefWithBody::Function(func) => func,
211 _ => bail!("Cannot rename local to self outside of function"),
214 if fn_def.self_param(sema.db).is_some() {
215 bail!("Method already has a self parameter");
218 let params = fn_def.assoc_fn_params(sema.db);
219 let first_param = params
221 .ok_or_else(|| format_err!("Cannot rename local to self unless it is a parameter"))?;
222 if first_param.as_local(sema.db) != local {
223 bail!("Only the first parameter may be renamed to self");
226 let assoc_item = fn_def
227 .as_assoc_item(sema.db)
228 .ok_or_else(|| format_err!("Cannot rename parameter to self for free function"))?;
229 let impl_ = match assoc_item.container(sema.db) {
230 hir::AssocItemContainer::Trait(_) => {
231 bail!("Cannot rename parameter to self for trait functions");
233 hir::AssocItemContainer::Impl(impl_) => impl_,
235 let first_param_ty = first_param.ty();
236 let impl_ty = impl_.self_ty(sema.db);
237 let (ty, self_param) = if impl_ty.remove_ref().is_some() {
238 // if the impl is a ref to the type we can just match the `&T` with self directly
239 (first_param_ty.clone(), "self")
241 first_param_ty.remove_ref().map_or((first_param_ty.clone(), "self"), |ty| {
242 (ty, if first_param_ty.is_mutable_reference() { "&mut self" } else { "&self" })
247 bail!("Parameter type differs from impl block type");
250 let InFile { file_id, value: param_source } =
251 first_param.source(sema.db).ok_or_else(|| format_err!("No source for parameter found"))?;
253 let def = Definition::Local(local);
254 let usages = def.usages(sema).all();
255 let mut source_change = SourceChange::default();
256 source_change.extend(usages.iter().map(|(&file_id, references)| {
257 (file_id, source_edit_from_references(references, def, "self"))
259 source_change.insert_source_edit(
260 file_id.original_file(sema.db),
261 TextEdit::replace(param_source.syntax().text_range(), String::from(self_param)),
266 fn rename_self_to_param(
267 sema: &Semantics<RootDatabase>,
269 self_param: hir::SelfParam,
271 ) -> RenameResult<SourceChange> {
272 if new_name == "self" {
273 // Let's do nothing rather than complain.
274 cov_mark::hit!(rename_self_to_self);
275 return Ok(SourceChange::default());
278 let identifier_kind = IdentifierKind::classify(new_name)?;
280 let InFile { file_id, value: self_param } =
281 self_param.source(sema.db).ok_or_else(|| format_err!("cannot find function source"))?;
283 let def = Definition::Local(local);
284 let usages = def.usages(sema).all();
285 let edit = text_edit_from_self_param(&self_param, new_name)
286 .ok_or_else(|| format_err!("No target type found"))?;
287 if usages.len() > 1 && identifier_kind == IdentifierKind::Underscore {
288 bail!("Cannot rename reference to `_` as it is being referenced multiple times");
290 let mut source_change = SourceChange::default();
291 source_change.insert_source_edit(file_id.original_file(sema.db), edit);
292 source_change.extend(usages.iter().map(|(&file_id, references)| {
293 (file_id, source_edit_from_references(references, def, new_name))
298 fn text_edit_from_self_param(self_param: &ast::SelfParam, new_name: &str) -> Option<TextEdit> {
299 fn target_type_name(impl_def: &ast::Impl) -> Option<String> {
300 if let Some(ast::Type::PathType(p)) = impl_def.self_ty() {
301 return Some(p.path()?.segment()?.name_ref()?.text().to_string());
306 let impl_def = self_param.syntax().ancestors().find_map(ast::Impl::cast)?;
307 let type_name = target_type_name(&impl_def)?;
309 let mut replacement_text = String::from(new_name);
310 replacement_text.push_str(": ");
311 match (self_param.amp_token(), self_param.mut_token()) {
312 (Some(_), None) => replacement_text.push('&'),
313 (Some(_), Some(_)) => replacement_text.push_str("&mut "),
316 replacement_text.push_str(type_name.as_str());
318 Some(TextEdit::replace(self_param.syntax().text_range(), replacement_text))
323 use expect_test::{expect, Expect};
324 use stdx::trim_indent;
325 use test_utils::assert_eq_text;
326 use text_edit::TextEdit;
328 use crate::{fixture, FileId};
330 use super::{RangeInfo, RenameError};
333 fn check(new_name: &str, ra_fixture_before: &str, ra_fixture_after: &str) {
334 let ra_fixture_after = &trim_indent(ra_fixture_after);
335 let (analysis, position) = fixture::position(ra_fixture_before);
336 let rename_result = analysis
337 .rename(position, new_name)
338 .unwrap_or_else(|err| panic!("Rename to '{}' was cancelled: {}", new_name, err));
339 match rename_result {
340 Ok(source_change) => {
341 let mut text_edit_builder = TextEdit::builder();
342 let mut file_id: Option<FileId> = None;
343 for edit in source_change.source_file_edits {
344 file_id = Some(edit.0);
345 for indel in edit.1.into_iter() {
346 text_edit_builder.replace(indel.delete, indel.insert);
349 if let Some(file_id) = file_id {
350 let mut result = analysis.file_text(file_id).unwrap().to_string();
351 text_edit_builder.finish().apply(&mut result);
352 assert_eq_text!(ra_fixture_after, &*result);
356 if ra_fixture_after.starts_with("error:") {
357 let error_message = ra_fixture_after
360 .skip("error:".len())
361 .collect::<String>();
362 assert_eq!(error_message.trim(), err.to_string());
364 panic!("Rename to '{}' failed unexpectedly: {}", new_name, err)
370 fn check_expect(new_name: &str, ra_fixture: &str, expect: Expect) {
371 let (analysis, position) = fixture::position(ra_fixture);
373 analysis.rename(position, new_name).unwrap().expect("Expect returned a RenameError");
374 expect.assert_debug_eq(&source_change)
377 fn check_prepare(ra_fixture: &str, expect: Expect) {
378 let (analysis, position) = fixture::position(ra_fixture);
379 let result = analysis
380 .prepare_rename(position)
381 .unwrap_or_else(|err| panic!("PrepareRename was cancelled: {}", err));
383 Ok(RangeInfo { range, info: () }) => {
384 let source = analysis.file_text(position.file_id).unwrap();
385 expect.assert_eq(&format!("{:?}: {}", range, &source[range]))
387 Err(RenameError(err)) => expect.assert_eq(&err),
392 fn test_prepare_rename_namelikes() {
393 check_prepare(r"fn name$0<'lifetime>() {}", expect![[r#"3..7: name"#]]);
394 check_prepare(r"fn name<'lifetime$0>() {}", expect![[r#"8..17: 'lifetime"#]]);
395 check_prepare(r"fn name<'lifetime>() { name$0(); }", expect![[r#"23..27: name"#]]);
399 fn test_prepare_rename_in_macro() {
407 expect![[r#"83..86: Foo"#]],
412 fn test_prepare_rename_keyword() {
413 check_prepare(r"struct$0 Foo;", expect![[r#"No references found at position"#]]);
417 fn test_prepare_rename_tuple_field() {
427 expect![[r#"No references found at position"#]],
432 fn test_prepare_rename_builtin() {
439 expect![[r#"No references found at position"#]],
444 fn test_prepare_rename_self() {
450 fn foo(self) -> Self$0 {
455 expect![[r#"No references found at position"#]],
460 fn test_rename_to_underscore() {
461 check("_", r#"fn main() { let i$0 = 1; }"#, r#"fn main() { let _ = 1; }"#);
465 fn test_rename_to_raw_identifier() {
466 check("r#fn", r#"fn main() { let i$0 = 1; }"#, r#"fn main() { let r#fn = 1; }"#);
470 fn test_rename_to_invalid_identifier1() {
473 r#"fn main() { let i$0 = 1; }"#,
474 "error: Invalid name `invalid!`: not an identifier",
479 fn test_rename_to_invalid_identifier2() {
482 r#"fn main() { let i$0 = 1; }"#,
483 "error: Invalid name `multiple tokens`: not an identifier",
488 fn test_rename_to_invalid_identifier3() {
491 r#"fn main() { let i$0 = 1; }"#,
492 "error: Invalid name `let`: not an identifier",
497 fn test_rename_to_invalid_identifier_lifetime() {
498 cov_mark::check!(rename_not_an_ident_ref);
501 r#"fn main() { let i$0 = 1; }"#,
502 "error: Invalid name `'foo`: not an identifier",
507 fn test_rename_to_invalid_identifier_lifetime2() {
508 cov_mark::check!(rename_not_a_lifetime_ident_ref);
511 r#"fn main<'a>(_: &'a$0 ()) {}"#,
512 "error: Invalid name `foo`: not a lifetime identifier",
517 fn test_rename_to_underscore_invalid() {
518 cov_mark::check!(rename_underscore_multiple);
521 r#"fn main(foo$0: ()) {foo;}"#,
522 "error: Cannot rename reference to `_` as it is being referenced multiple times",
527 fn test_rename_mod_invalid() {
531 "error: Invalid name `'foo`: cannot rename module to 'foo",
536 fn test_rename_for_local() {
565 fn test_rename_unresolved_reference() {
568 r#"fn main() { let _ = unresolved_ref$0; }"#,
569 "error: No references found at position",
574 fn test_rename_macro_multiple_occurrences() {
577 r#"macro_rules! foo {
579 const $ident: () = ();
586 const _: Foo = Foo {};
591 const $ident: () = ();
598 const _: Baaah = Baaah {};
604 fn test_rename_for_macro_args() {
608 macro_rules! foo {($i:ident) => {$i} }
615 macro_rules! foo {($i:ident) => {$i} }
625 fn test_rename_for_macro_args_rev() {
629 macro_rules! foo {($i:ident) => {$i} }
636 macro_rules! foo {($i:ident) => {$i} }
646 fn test_rename_for_macro_define_fn() {
650 macro_rules! define_fn {($id:ident) => { fn $id{} }}
657 macro_rules! define_fn {($id:ident) => { fn $id{} }}
667 fn test_rename_for_macro_define_fn_rev() {
671 macro_rules! define_fn {($id:ident) => { fn $id{} }}
678 macro_rules! define_fn {($id:ident) => { fn $id{} }}
688 fn test_rename_for_param_inside() {
689 check("j", r#"fn foo(i : u32) -> u32 { i$0 }"#, r#"fn foo(j : u32) -> u32 { j }"#);
693 fn test_rename_refs_for_fn_param() {
694 check("j", r#"fn foo(i$0 : u32) -> u32 { i }"#, r#"fn foo(j : u32) -> u32 { j }"#);
698 fn test_rename_for_mut_param() {
699 check("j", r#"fn foo(mut i$0 : u32) -> u32 { i }"#, r#"fn foo(mut j : u32) -> u32 { j }"#);
703 fn test_rename_struct_field() {
707 struct Foo { field$0: i32 }
710 fn new(i: i32) -> Self {
716 struct Foo { foo: i32 }
719 fn new(i: i32) -> Self {
728 fn test_rename_field_in_field_shorthand() {
729 cov_mark::check!(test_rename_field_in_field_shorthand);
733 struct Foo { foo$0: i32 }
736 fn new(foo: i32) -> Self {
742 struct Foo { field: i32 }
745 fn new(foo: i32) -> Self {
754 fn test_rename_local_in_field_shorthand() {
755 cov_mark::check!(test_rename_local_in_field_shorthand);
759 struct Foo { i: i32 }
762 fn new(i$0: i32) -> Self {
768 struct Foo { i: i32 }
771 fn new(j: i32) -> Self {
780 fn test_field_shorthand_correct_struct() {
784 struct Foo { i$0: i32 }
785 struct Bar { i: i32 }
788 fn new(i: i32) -> Self {
794 struct Foo { j: i32 }
795 struct Bar { i: i32 }
798 fn new(i: i32) -> Self {
807 fn test_shadow_local_for_struct_shorthand() {
811 struct Foo { i: i32 }
813 fn baz(i$0: i32) -> Self {
822 struct Foo { i: i32 }
824 fn baz(j: i32) -> Self {
825 let x = Foo { i: j };
836 fn test_rename_mod() {
868 dst: AnchoredPathBuf {
883 fn test_rename_mod_in_use_tree() {
893 pub struct FooContent;
896 use crate::foo$0::FooContent;
927 dst: AnchoredPathBuf {
942 fn test_rename_mod_in_dir() {
970 dst: AnchoredPathBuf {
974 path: "../foo2/mod.rs",
985 fn test_rename_unusually_nested_mod() {
990 mod outer { mod fo$0o; }
1009 file_system_edits: [
1014 dst: AnchoredPathBuf {
1029 fn test_module_rename_in_path() {
1034 pub use self::bar as qux;
1038 fn main() { foo::bar(); }
1042 pub use self::bar as qux;
1046 fn main() { baz::bar(); }
1052 fn test_rename_mod_filename_and_path() {
1070 source_file_edits: {
1092 file_system_edits: [
1097 dst: AnchoredPathBuf {
1112 fn test_enum_variant_from_module_1() {
1113 cov_mark::check!(rename_non_local);
1118 pub enum Foo { Bar$0 }
1121 fn func(f: foo::Foo) {
1129 pub enum Foo { Baz }
1132 fn func(f: foo::Foo) {
1142 fn test_enum_variant_from_module_2() {
1147 pub struct Foo { pub bar$0: uint }
1150 fn foo(f: foo::Foo) {
1156 pub struct Foo { pub baz: uint }
1159 fn foo(f: foo::Foo) {
1167 fn test_parameter_to_self() {
1168 cov_mark::check!(rename_to_self);
1172 struct Foo { i: i32 }
1175 fn f(foo$0: &mut Foo) -> i32 {
1181 struct Foo { i: i32 }
1184 fn f(&mut self) -> i32 {
1193 struct Foo { i: i32 }
1196 fn f(foo$0: Foo) -> i32 {
1202 struct Foo { i: i32 }
1214 fn test_parameter_to_self_error_no_impl() {
1218 struct Foo { i: i32 }
1220 fn f(foo$0: &mut Foo) -> i32 {
1224 "error: Cannot rename parameter to self for free function",
1229 struct Foo { i: i32 }
1233 fn f(foo$0: &mut Foo) -> i32 {
1238 "error: Parameter type differs from impl block type",
1243 fn test_parameter_to_self_error_not_first() {
1247 struct Foo { i: i32 }
1249 fn f(x: (), foo$0: &mut Foo) -> i32 {
1254 "error: Only the first parameter may be renamed to self",
1259 fn test_parameter_to_self_impl_ref() {
1263 struct Foo { i: i32 }
1265 fn f(foo$0: &Foo) -> i32 {
1271 struct Foo { i: i32 }
1282 fn test_self_to_parameter() {
1286 struct Foo { i: i32 }
1289 fn f(&mut $0self) -> i32 {
1295 struct Foo { i: i32 }
1298 fn f(foo: &mut Foo) -> i32 {
1307 fn test_owned_self_to_parameter() {
1308 cov_mark::check!(rename_self_to_param);
1312 struct Foo { i: i32 }
1315 fn f($0self) -> i32 {
1321 struct Foo { i: i32 }
1324 fn f(foo: Foo) -> i32 {
1333 fn test_self_in_path_to_parameter() {
1337 struct Foo { i: i32 }
1340 fn f(&self) -> i32 {
1347 struct Foo { i: i32 }
1350 fn f(foo: &Foo) -> i32 {
1360 fn test_rename_field_put_init_shorthand() {
1361 cov_mark::check!(test_rename_field_put_init_shorthand);
1365 struct Foo { i$0: i32 }
1367 fn foo(bar: i32) -> Foo {
1372 struct Foo { bar: i32 }
1374 fn foo(bar: i32) -> Foo {
1382 fn test_rename_local_put_init_shorthand() {
1383 cov_mark::check!(test_rename_local_put_init_shorthand);
1387 struct Foo { i: i32 }
1389 fn foo(bar$0: i32) -> Foo {
1394 struct Foo { i: i32 }
1396 fn foo(i: i32) -> Foo {
1404 fn test_struct_field_pat_into_shorthand() {
1405 cov_mark::check!(test_rename_field_put_init_shorthand_pat);
1409 struct Foo { i$0: i32 }
1412 let Foo { i: ref baz @ qux } = foo;
1417 struct Foo { baz: i32 }
1420 let Foo { baz: ref baz @ qux } = foo;
1428 struct Foo { i$0: i32 }
1431 let Foo { i: ref baz } = foo;
1436 struct Foo { baz: i32 }
1439 let Foo { ref baz } = foo;
1447 fn test_struct_local_pat_into_shorthand() {
1448 cov_mark::check!(test_rename_local_put_init_shorthand_pat);
1452 struct Foo { field: i32 }
1455 let Foo { field: qux$0 } = foo;
1460 struct Foo { field: i32 }
1463 let Foo { field } = foo;
1471 struct Foo { field: i32 }
1474 let Foo { field: x @ qux$0 } = foo;
1479 struct Foo { field: i32 }
1482 let Foo { field: x @ field } = foo;
1490 fn test_rename_binding_in_destructure_pat() {
1491 let expected_fixture = r#"
1497 let Foo { i: bar } = foo;
1509 let Foo { i: b } = foo;
1523 let Foo { i } = foo;
1532 fn test_rename_binding_in_destructure_param_pat() {
1540 fn foo(Foo { i }: Foo) -> i32 {
1549 fn foo(Foo { i: bar }: Foo) -> i32 {
1557 fn test_struct_field_complex_ident_pat() {
1558 cov_mark::check!(rename_record_pat_field_name_split);
1562 struct Foo { i$0: i32 }
1565 let Foo { ref i } = foo;
1569 struct Foo { baz: i32 }
1572 let Foo { baz: ref i } = foo;
1579 fn test_rename_lifetimes() {
1580 cov_mark::check!(rename_lifetime);
1587 impl<'a> Foo<'a> for &'a () {
1588 fn foo() -> &'a$0 () {
1597 impl<'yeeee> Foo<'yeeee> for &'yeeee () {
1598 fn foo() -> &'yeeee () {
1607 fn test_rename_bind_pat() {
1612 enum CustomOption<T> {
1617 let test_variable = CustomOption::Some(22);
1619 match test_variable {
1620 CustomOption::Some(foo$0) if foo == 11 => {}
1626 enum CustomOption<T> {
1631 let test_variable = CustomOption::Some(22);
1633 match test_variable {
1634 CustomOption::Some(new_name) if new_name == 11 => {}
1642 fn test_rename_label() {
1646 fn foo<'a>() -> &'a () {
1655 fn foo<'a>() -> &'a () {
1667 fn test_self_to_self() {
1668 cov_mark::check!(rename_self_to_self);
1687 fn test_rename_field_in_pat_in_macro_doesnt_shorthand() {
1688 // ideally we would be able to make this emit a short hand, but I doubt this is easily possible
1694 let $pattern = loop {};
1701 foo!(Foo { bar: baz });
1707 let $pattern = loop {};
1714 foo!(Foo { baz: baz });
1721 fn test_rename_tuple_field() {
1732 "error: No identifier available to rename",
1737 fn test_rename_builtin() {
1745 "error: Cannot rename builtin type",
1750 fn test_rename_self() {
1757 fn foo(self) -> Self$0 {
1762 "error: Cannot rename `Self`",
1767 fn test_rename_ignores_self_ty() {
1773 impl Foo where Self: {}
1778 impl Fo0 where Self: {}
1784 fn test_rename_fails_on_aliases() {
1791 "error: Renaming aliases is currently unsupported",
1800 "error: Renaming aliases is currently unsupported",
1805 fn test_rename_trait_method() {
1885 fn test_rename_trait_method_prefix_of_second() {
1904 fn test_rename_trait_const() {
1913 fn f() { <()>::FOO; }";
1924 fn f() { <()>::BAR; }"#,
1937 fn f() { <()>::BAR; }"#,
1950 fn f() { <()>::BAR$0; }"#,
1956 fn defs_from_macros_arent_renamed() {
1960 macro_rules! m { () => { fn f() {} } }
1964 "error: No identifier available to rename",
1969 fn attributed_item() {
1973 //- proc_macros: identity
1975 #[proc_macros::identity]
1982 #[proc_macros::identity]
1991 fn in_macro_multi_mapping() {
1996 macro_rules! match_ast2 {
2000 $( if $node { $res } else )*
2015 macro_rules! match_ast2 {
2019 $( if $node { $res } else )*