| use ide_db::{ |
| helpers::mod_path_to_ast, |
| imports::{ |
| import_assets::{ImportAssets, ImportCandidate}, |
| insert_use::{insert_use, ImportScope}, |
| }, |
| }; |
| use syntax::{ast, AstNode, NodeOrToken, SyntaxElement}; |
| |
| use crate::{AssistContext, AssistId, AssistKind, Assists, GroupLabel}; |
| |
| // Feature: Auto Import |
| // |
| // Using the `auto-import` assist it is possible to insert missing imports for unresolved items. |
| // When inserting an import it will do so in a structured manner by keeping imports grouped, |
| // separated by a newline in the following order: |
| // |
| // - `std` and `core` |
| // - External Crates |
| // - Current Crate, paths prefixed by `crate` |
| // - Current Module, paths prefixed by `self` |
| // - Super Module, paths prefixed by `super` |
| // |
| // Example: |
| // ```rust |
| // use std::fs::File; |
| // |
| // use itertools::Itertools; |
| // use syntax::ast; |
| // |
| // use crate::utils::insert_use; |
| // |
| // use self::auto_import; |
| // |
| // use super::AssistContext; |
| // ``` |
| // |
| // .Import Granularity |
| // |
| // It is possible to configure how use-trees are merged with the `importGranularity` setting. |
| // It has the following configurations: |
| // |
| // - `crate`: Merge imports from the same crate into a single use statement. This kind of |
| // nesting is only supported in Rust versions later than 1.24. |
| // - `module`: Merge imports from the same module into a single use statement. |
| // - `item`: Don't merge imports at all, creating one import per item. |
| // - `preserve`: Do not change the granularity of any imports. For auto-import this has the same |
| // effect as `item`. |
| // |
| // In `VS Code` the configuration for this is `rust-analyzer.assist.importGranularity`. |
| // |
| // .Import Prefix |
| // |
| // The style of imports in the same crate is configurable through the `importPrefix` setting. |
| // It has the following configurations: |
| // |
| // - `crate`: This setting will force paths to be always absolute, starting with the `crate` |
| // prefix, unless the item is defined outside of the current crate. |
| // - `self`: This setting will force paths that are relative to the current module to always |
| // start with `self`. This will result in paths that always start with either `crate`, `self`, |
| // `super` or an extern crate identifier. |
| // - `plain`: This setting does not impose any restrictions in imports. |
| // |
| // In `VS Code` the configuration for this is `rust-analyzer.assist.importPrefix`. |
| // |
| // image::https://user-images.githubusercontent.com/48062697/113020673-b85be580-917a-11eb-9022-59585f35d4f8.gif[] |
| |
| // Assist: auto_import |
| // |
| // If the name is unresolved, provides all possible imports for it. |
| // |
| // ``` |
| // fn main() { |
| // let map = HashMap$0::new(); |
| // } |
| // # pub mod std { pub mod collections { pub struct HashMap { } } } |
| // ``` |
| // -> |
| // ``` |
| // use std::collections::HashMap; |
| // |
| // fn main() { |
| // let map = HashMap::new(); |
| // } |
| // # pub mod std { pub mod collections { pub struct HashMap { } } } |
| // ``` |
| pub(crate) fn auto_import(acc: &mut Assists, ctx: &AssistContext) -> Option<()> { |
| let (import_assets, syntax_under_caret) = find_importable_node(ctx)?; |
| let mut proposed_imports = |
| import_assets.search_for_imports(&ctx.sema, ctx.config.insert_use.prefix_kind); |
| if proposed_imports.is_empty() { |
| return None; |
| } |
| |
| let range = match &syntax_under_caret { |
| NodeOrToken::Node(node) => ctx.sema.original_range(node).range, |
| NodeOrToken::Token(token) => token.text_range(), |
| }; |
| let group_label = group_label(import_assets.import_candidate()); |
| let scope = ImportScope::find_insert_use_container( |
| &match syntax_under_caret { |
| NodeOrToken::Node(it) => it, |
| NodeOrToken::Token(it) => it.parent()?, |
| }, |
| &ctx.sema, |
| )?; |
| |
| // we aren't interested in different namespaces |
| proposed_imports.dedup_by(|a, b| a.import_path == b.import_path); |
| for import in proposed_imports { |
| acc.add_group( |
| &group_label, |
| AssistId("auto_import", AssistKind::QuickFix), |
| format!("Import `{}`", import.import_path), |
| range, |
| |builder| { |
| let scope = match scope.clone() { |
| ImportScope::File(it) => ImportScope::File(builder.make_mut(it)), |
| ImportScope::Module(it) => ImportScope::Module(builder.make_mut(it)), |
| ImportScope::Block(it) => ImportScope::Block(builder.make_mut(it)), |
| }; |
| insert_use(&scope, mod_path_to_ast(&import.import_path), &ctx.config.insert_use); |
| }, |
| ); |
| } |
| Some(()) |
| } |
| |
| pub(super) fn find_importable_node(ctx: &AssistContext) -> Option<(ImportAssets, SyntaxElement)> { |
| if let Some(path_under_caret) = ctx.find_node_at_offset_with_descend::<ast::Path>() { |
| ImportAssets::for_exact_path(&path_under_caret, &ctx.sema) |
| .zip(Some(path_under_caret.syntax().clone().into())) |
| } else if let Some(method_under_caret) = |
| ctx.find_node_at_offset_with_descend::<ast::MethodCallExpr>() |
| { |
| ImportAssets::for_method_call(&method_under_caret, &ctx.sema) |
| .zip(Some(method_under_caret.syntax().clone().into())) |
| } else if let Some(pat) = ctx |
| .find_node_at_offset_with_descend::<ast::IdentPat>() |
| .filter(ast::IdentPat::is_simple_ident) |
| { |
| ImportAssets::for_ident_pat(&ctx.sema, &pat).zip(Some(pat.syntax().clone().into())) |
| } else { |
| None |
| } |
| } |
| |
| fn group_label(import_candidate: &ImportCandidate) -> GroupLabel { |
| let name = match import_candidate { |
| ImportCandidate::Path(candidate) => format!("Import {}", candidate.name.text()), |
| ImportCandidate::TraitAssocItem(candidate) => { |
| format!("Import a trait for item {}", candidate.assoc_item_name.text()) |
| } |
| ImportCandidate::TraitMethod(candidate) => { |
| format!("Import a trait for method {}", candidate.assoc_item_name.text()) |
| } |
| }; |
| GroupLabel(name) |
| } |
| |
| #[cfg(test)] |
| mod tests { |
| use super::*; |
| |
| use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target}; |
| |
| #[test] |
| fn not_applicable_if_scope_inside_macro() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| mod bar { |
| pub struct Baz; |
| } |
| macro_rules! foo { |
| ($it:ident) => { |
| mod __ { |
| fn __(x: $it) {} |
| } |
| }; |
| } |
| foo! { |
| Baz$0 |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn applicable_in_attributes() { |
| check_assist( |
| auto_import, |
| r" |
| //- proc_macros: identity |
| #[proc_macros::identity] |
| mod foo { |
| mod bar { |
| const _: Baz$0 = (); |
| } |
| } |
| mod baz { |
| pub struct Baz; |
| } |
| ", |
| r" |
| #[proc_macros::identity] |
| mod foo { |
| mod bar { |
| use crate::baz::Baz; |
| |
| const _: Baz = (); |
| } |
| } |
| mod baz { |
| pub struct Baz; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn applicable_when_found_an_import_partial() { |
| check_assist( |
| auto_import, |
| r" |
| mod std { |
| pub mod fmt { |
| pub struct Formatter; |
| } |
| } |
| |
| use std::fmt; |
| |
| $0Formatter |
| ", |
| r" |
| mod std { |
| pub mod fmt { |
| pub struct Formatter; |
| } |
| } |
| |
| use std::fmt::{self, Formatter}; |
| |
| Formatter |
| ", |
| ); |
| } |
| |
| #[test] |
| fn applicable_when_found_an_import() { |
| check_assist( |
| auto_import, |
| r" |
| $0PubStruct |
| |
| pub mod PubMod { |
| pub struct PubStruct; |
| } |
| ", |
| r" |
| use PubMod::PubStruct; |
| |
| PubStruct |
| |
| pub mod PubMod { |
| pub struct PubStruct; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn applicable_when_found_an_import_in_macros() { |
| check_assist( |
| auto_import, |
| r" |
| macro_rules! foo { |
| ($i:ident) => { fn foo(a: $i) {} } |
| } |
| foo!(Pub$0Struct); |
| |
| pub mod PubMod { |
| pub struct PubStruct; |
| } |
| ", |
| r" |
| use PubMod::PubStruct; |
| |
| macro_rules! foo { |
| ($i:ident) => { fn foo(a: $i) {} } |
| } |
| foo!(PubStruct); |
| |
| pub mod PubMod { |
| pub struct PubStruct; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn applicable_when_found_multiple_imports() { |
| check_assist( |
| auto_import, |
| r" |
| PubSt$0ruct |
| |
| pub mod PubMod1 { |
| pub struct PubStruct; |
| } |
| pub mod PubMod2 { |
| pub struct PubStruct; |
| } |
| pub mod PubMod3 { |
| pub struct PubStruct; |
| } |
| ", |
| r" |
| use PubMod3::PubStruct; |
| |
| PubStruct |
| |
| pub mod PubMod1 { |
| pub struct PubStruct; |
| } |
| pub mod PubMod2 { |
| pub struct PubStruct; |
| } |
| pub mod PubMod3 { |
| pub struct PubStruct; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_for_already_imported_types() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| use PubMod::PubStruct; |
| |
| PubStruct$0 |
| |
| pub mod PubMod { |
| pub struct PubStruct; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_for_types_with_private_paths() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| PrivateStruct$0 |
| |
| pub mod PubMod { |
| struct PrivateStruct; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_when_no_imports_found() { |
| check_assist_not_applicable( |
| auto_import, |
| " |
| PubStruct$0", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_in_import_statements() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| use PubStruct$0; |
| |
| pub mod PubMod { |
| pub struct PubStruct; |
| }", |
| ); |
| } |
| |
| #[test] |
| fn function_import() { |
| check_assist( |
| auto_import, |
| r" |
| test_function$0 |
| |
| pub mod PubMod { |
| pub fn test_function() {}; |
| } |
| ", |
| r" |
| use PubMod::test_function; |
| |
| test_function |
| |
| pub mod PubMod { |
| pub fn test_function() {}; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn macro_import() { |
| check_assist( |
| auto_import, |
| r" |
| //- /lib.rs crate:crate_with_macro |
| #[macro_export] |
| macro_rules! foo { |
| () => () |
| } |
| |
| //- /main.rs crate:main deps:crate_with_macro |
| fn main() { |
| foo$0 |
| } |
| ", |
| r"use crate_with_macro::foo; |
| |
| fn main() { |
| foo |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn auto_import_target() { |
| check_assist_target( |
| auto_import, |
| r" |
| struct AssistInfo { |
| group_label: Option<$0GroupLabel>, |
| } |
| |
| mod m { pub struct GroupLabel; } |
| ", |
| "GroupLabel", |
| ) |
| } |
| |
| #[test] |
| fn not_applicable_when_path_start_is_imported() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| pub mod mod1 { |
| pub mod mod2 { |
| pub mod mod3 { |
| pub struct TestStruct; |
| } |
| } |
| } |
| |
| use mod1::mod2; |
| fn main() { |
| mod2::mod3::TestStruct$0 |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_for_imported_function() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| pub mod test_mod { |
| pub fn test_function() {} |
| } |
| |
| use test_mod::test_function; |
| fn main() { |
| test_function$0 |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn associated_struct_function() { |
| check_assist( |
| auto_import, |
| r" |
| mod test_mod { |
| pub struct TestStruct {} |
| impl TestStruct { |
| pub fn test_function() {} |
| } |
| } |
| |
| fn main() { |
| TestStruct::test_function$0 |
| } |
| ", |
| r" |
| use test_mod::TestStruct; |
| |
| mod test_mod { |
| pub struct TestStruct {} |
| impl TestStruct { |
| pub fn test_function() {} |
| } |
| } |
| |
| fn main() { |
| TestStruct::test_function |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn associated_struct_const() { |
| check_assist( |
| auto_import, |
| r" |
| mod test_mod { |
| pub struct TestStruct {} |
| impl TestStruct { |
| const TEST_CONST: u8 = 42; |
| } |
| } |
| |
| fn main() { |
| TestStruct::TEST_CONST$0 |
| } |
| ", |
| r" |
| use test_mod::TestStruct; |
| |
| mod test_mod { |
| pub struct TestStruct {} |
| impl TestStruct { |
| const TEST_CONST: u8 = 42; |
| } |
| } |
| |
| fn main() { |
| TestStruct::TEST_CONST |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn associated_trait_function() { |
| check_assist( |
| auto_import, |
| r" |
| mod test_mod { |
| pub trait TestTrait { |
| fn test_function(); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_function() {} |
| } |
| } |
| |
| fn main() { |
| test_mod::TestStruct::test_function$0 |
| } |
| ", |
| r" |
| use test_mod::TestTrait; |
| |
| mod test_mod { |
| pub trait TestTrait { |
| fn test_function(); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_function() {} |
| } |
| } |
| |
| fn main() { |
| test_mod::TestStruct::test_function |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_for_imported_trait_for_function() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| mod test_mod { |
| pub trait TestTrait { |
| fn test_function(); |
| } |
| pub trait TestTrait2 { |
| fn test_function(); |
| } |
| pub enum TestEnum { |
| One, |
| Two, |
| } |
| impl TestTrait2 for TestEnum { |
| fn test_function() {} |
| } |
| impl TestTrait for TestEnum { |
| fn test_function() {} |
| } |
| } |
| |
| use test_mod::TestTrait2; |
| fn main() { |
| test_mod::TestEnum::test_function$0; |
| } |
| ", |
| ) |
| } |
| |
| #[test] |
| fn associated_trait_const() { |
| check_assist( |
| auto_import, |
| r" |
| mod test_mod { |
| pub trait TestTrait { |
| const TEST_CONST: u8; |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| const TEST_CONST: u8 = 42; |
| } |
| } |
| |
| fn main() { |
| test_mod::TestStruct::TEST_CONST$0 |
| } |
| ", |
| r" |
| use test_mod::TestTrait; |
| |
| mod test_mod { |
| pub trait TestTrait { |
| const TEST_CONST: u8; |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| const TEST_CONST: u8 = 42; |
| } |
| } |
| |
| fn main() { |
| test_mod::TestStruct::TEST_CONST |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_for_imported_trait_for_const() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| mod test_mod { |
| pub trait TestTrait { |
| const TEST_CONST: u8; |
| } |
| pub trait TestTrait2 { |
| const TEST_CONST: f64; |
| } |
| pub enum TestEnum { |
| One, |
| Two, |
| } |
| impl TestTrait2 for TestEnum { |
| const TEST_CONST: f64 = 42.0; |
| } |
| impl TestTrait for TestEnum { |
| const TEST_CONST: u8 = 42; |
| } |
| } |
| |
| use test_mod::TestTrait2; |
| fn main() { |
| test_mod::TestEnum::TEST_CONST$0; |
| } |
| ", |
| ) |
| } |
| |
| #[test] |
| fn trait_method() { |
| check_assist( |
| auto_import, |
| r" |
| mod test_mod { |
| pub trait TestTrait { |
| fn test_method(&self); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_method(&self) {} |
| } |
| } |
| |
| fn main() { |
| let test_struct = test_mod::TestStruct {}; |
| test_struct.test_meth$0od() |
| } |
| ", |
| r" |
| use test_mod::TestTrait; |
| |
| mod test_mod { |
| pub trait TestTrait { |
| fn test_method(&self); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_method(&self) {} |
| } |
| } |
| |
| fn main() { |
| let test_struct = test_mod::TestStruct {}; |
| test_struct.test_method() |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn trait_method_cross_crate() { |
| check_assist( |
| auto_import, |
| r" |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| let test_struct = dep::test_mod::TestStruct {}; |
| test_struct.test_meth$0od() |
| } |
| //- /dep.rs crate:dep |
| pub mod test_mod { |
| pub trait TestTrait { |
| fn test_method(&self); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_method(&self) {} |
| } |
| } |
| ", |
| r" |
| use dep::test_mod::TestTrait; |
| |
| fn main() { |
| let test_struct = dep::test_mod::TestStruct {}; |
| test_struct.test_method() |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn assoc_fn_cross_crate() { |
| check_assist( |
| auto_import, |
| r" |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| dep::test_mod::TestStruct::test_func$0tion |
| } |
| //- /dep.rs crate:dep |
| pub mod test_mod { |
| pub trait TestTrait { |
| fn test_function(); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_function() {} |
| } |
| } |
| ", |
| r" |
| use dep::test_mod::TestTrait; |
| |
| fn main() { |
| dep::test_mod::TestStruct::test_function |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn assoc_const_cross_crate() { |
| check_assist( |
| auto_import, |
| r" |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| dep::test_mod::TestStruct::CONST$0 |
| } |
| //- /dep.rs crate:dep |
| pub mod test_mod { |
| pub trait TestTrait { |
| const CONST: bool; |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| const CONST: bool = true; |
| } |
| } |
| ", |
| r" |
| use dep::test_mod::TestTrait; |
| |
| fn main() { |
| dep::test_mod::TestStruct::CONST |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn assoc_fn_as_method_cross_crate() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| let test_struct = dep::test_mod::TestStruct {}; |
| test_struct.test_func$0tion() |
| } |
| //- /dep.rs crate:dep |
| pub mod test_mod { |
| pub trait TestTrait { |
| fn test_function(); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_function() {} |
| } |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn private_trait_cross_crate() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| let test_struct = dep::test_mod::TestStruct {}; |
| test_struct.test_meth$0od() |
| } |
| //- /dep.rs crate:dep |
| pub mod test_mod { |
| trait TestTrait { |
| fn test_method(&self); |
| } |
| pub struct TestStruct {} |
| impl TestTrait for TestStruct { |
| fn test_method(&self) {} |
| } |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn not_applicable_for_imported_trait_for_method() { |
| check_assist_not_applicable( |
| auto_import, |
| r" |
| mod test_mod { |
| pub trait TestTrait { |
| fn test_method(&self); |
| } |
| pub trait TestTrait2 { |
| fn test_method(&self); |
| } |
| pub enum TestEnum { |
| One, |
| Two, |
| } |
| impl TestTrait2 for TestEnum { |
| fn test_method(&self) {} |
| } |
| impl TestTrait for TestEnum { |
| fn test_method(&self) {} |
| } |
| } |
| |
| use test_mod::TestTrait2; |
| fn main() { |
| let one = test_mod::TestEnum::One; |
| one.test$0_method(); |
| } |
| ", |
| ) |
| } |
| |
| #[test] |
| fn dep_import() { |
| check_assist( |
| auto_import, |
| r" |
| //- /lib.rs crate:dep |
| pub struct Struct; |
| |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| Struct$0 |
| } |
| ", |
| r"use dep::Struct; |
| |
| fn main() { |
| Struct |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn whole_segment() { |
| // Tests that only imports whose last segment matches the identifier get suggested. |
| check_assist( |
| auto_import, |
| r" |
| //- /lib.rs crate:dep |
| pub mod fmt { |
| pub trait Display {} |
| } |
| |
| pub fn panic_fmt() {} |
| |
| //- /main.rs crate:main deps:dep |
| struct S; |
| |
| impl f$0mt::Display for S {} |
| ", |
| r"use dep::fmt; |
| |
| struct S; |
| |
| impl fmt::Display for S {} |
| ", |
| ); |
| } |
| |
| #[test] |
| fn macro_generated() { |
| // Tests that macro-generated items are suggested from external crates. |
| check_assist( |
| auto_import, |
| r" |
| //- /lib.rs crate:dep |
| macro_rules! mac { |
| () => { |
| pub struct Cheese; |
| }; |
| } |
| |
| mac!(); |
| |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| Cheese$0; |
| } |
| ", |
| r"use dep::Cheese; |
| |
| fn main() { |
| Cheese; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn casing() { |
| // Tests that differently cased names don't interfere and we only suggest the matching one. |
| check_assist( |
| auto_import, |
| r" |
| //- /lib.rs crate:dep |
| pub struct FMT; |
| pub struct fmt; |
| |
| //- /main.rs crate:main deps:dep |
| fn main() { |
| FMT$0; |
| } |
| ", |
| r"use dep::FMT; |
| |
| fn main() { |
| FMT; |
| } |
| ", |
| ); |
| } |
| |
| #[test] |
| fn inner_items() { |
| check_assist( |
| auto_import, |
| r#" |
| mod baz { |
| pub struct Foo {} |
| } |
| |
| mod bar { |
| fn bar() { |
| Foo$0; |
| println!("Hallo"); |
| } |
| } |
| "#, |
| r#" |
| mod baz { |
| pub struct Foo {} |
| } |
| |
| mod bar { |
| use crate::baz::Foo; |
| |
| fn bar() { |
| Foo; |
| println!("Hallo"); |
| } |
| } |
| "#, |
| ); |
| } |
| |
| #[test] |
| fn uses_abs_path_with_extern_crate_clash() { |
| cov_mark::check!(ambiguous_crate_start); |
| check_assist( |
| auto_import, |
| r#" |
| //- /main.rs crate:main deps:foo |
| mod foo {} |
| |
| const _: () = { |
| Foo$0 |
| }; |
| //- /foo.rs crate:foo |
| pub struct Foo |
| "#, |
| r#" |
| use ::foo::Foo; |
| |
| mod foo {} |
| |
| const _: () = { |
| Foo |
| }; |
| "#, |
| ); |
| } |
| |
| #[test] |
| fn works_on_ident_patterns() { |
| check_assist( |
| auto_import, |
| r#" |
| mod foo { |
| pub struct Foo {} |
| } |
| fn foo() { |
| let Foo$0; |
| } |
| "#, |
| r#" |
| use foo::Foo; |
| |
| mod foo { |
| pub struct Foo {} |
| } |
| fn foo() { |
| let Foo; |
| } |
| "#, |
| ); |
| } |
| |
| #[test] |
| fn works_in_derives() { |
| check_assist( |
| auto_import, |
| r#" |
| //- minicore:derive |
| mod foo { |
| #[rustc_builtin_macro] |
| pub macro Copy {} |
| } |
| #[derive(Copy$0)] |
| struct Foo; |
| "#, |
| r#" |
| use foo::Copy; |
| |
| mod foo { |
| #[rustc_builtin_macro] |
| pub macro Copy {} |
| } |
| #[derive(Copy)] |
| struct Foo; |
| "#, |
| ); |
| } |
| } |