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cfa26c3ac3d85d502f75c2f6b760aadcc997a1a8
rust/crates/ide/src/hover/tests.rs

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Split the hover module up
2021-09-23 19:54:57 +02:00
use expect_test::{expect, Expect};
use ide_db::base_db::{FileLoader, FileRange};
use syntax::TextRange;
use crate::{fixture, hover::HoverDocFormat, HoverConfig};
fn check_hover_no_result(ra_fixture: &str) {
let (analysis, position) = fixture::position(ra_fixture);
let hover = analysis
.hover(
&HoverConfig { links_in_hover: true, documentation: Some(HoverDocFormat::Markdown) },
FileRange { file_id: position.file_id, range: TextRange::empty(position.offset) },
)
.unwrap();
assert!(hover.is_none(), "hover not expected but found: {:?}", hover.unwrap());
}
fn check(ra_fixture: &str, expect: Expect) {
let (analysis, position) = fixture::position(ra_fixture);
let hover = analysis
.hover(
&HoverConfig { links_in_hover: true, documentation: Some(HoverDocFormat::Markdown) },
FileRange { file_id: position.file_id, range: TextRange::empty(position.offset) },
)
.unwrap()
.unwrap();
let content = analysis.db.file_text(position.file_id);
let hovered_element = &content[hover.range];
let actual = format!("*{}*\n{}\n", hovered_element, hover.info.markup);
expect.assert_eq(&actual)
}
fn check_hover_no_links(ra_fixture: &str, expect: Expect) {
let (analysis, position) = fixture::position(ra_fixture);
let hover = analysis
.hover(
&HoverConfig { links_in_hover: false, documentation: Some(HoverDocFormat::Markdown) },
FileRange { file_id: position.file_id, range: TextRange::empty(position.offset) },
)
.unwrap()
.unwrap();
let content = analysis.db.file_text(position.file_id);
let hovered_element = &content[hover.range];
let actual = format!("*{}*\n{}\n", hovered_element, hover.info.markup);
expect.assert_eq(&actual)
}
fn check_hover_no_markdown(ra_fixture: &str, expect: Expect) {
let (analysis, position) = fixture::position(ra_fixture);
let hover = analysis
.hover(
&HoverConfig { links_in_hover: true, documentation: Some(HoverDocFormat::PlainText) },
FileRange { file_id: position.file_id, range: TextRange::empty(position.offset) },
)
.unwrap()
.unwrap();
let content = analysis.db.file_text(position.file_id);
let hovered_element = &content[hover.range];
let actual = format!("*{}*\n{}\n", hovered_element, hover.info.markup);
expect.assert_eq(&actual)
}
fn check_actions(ra_fixture: &str, expect: Expect) {
let (analysis, file_id, position) = fixture::range_or_position(ra_fixture);
let hover = analysis
.hover(
&HoverConfig { links_in_hover: true, documentation: Some(HoverDocFormat::Markdown) },
FileRange { file_id, range: position.range_or_empty() },
)
.unwrap()
.unwrap();
expect.assert_debug_eq(&hover.info.actions)
}
fn check_hover_range(ra_fixture: &str, expect: Expect) {
let (analysis, range) = fixture::range(ra_fixture);
let hover = analysis
.hover(
&HoverConfig { links_in_hover: false, documentation: Some(HoverDocFormat::Markdown) },
range,
)
.unwrap()
.unwrap();
expect.assert_eq(hover.info.markup.as_str())
}
fn check_hover_range_no_results(ra_fixture: &str) {
let (analysis, range) = fixture::range(ra_fixture);
let hover = analysis
.hover(
&HoverConfig { links_in_hover: false, documentation: Some(HoverDocFormat::Markdown) },
range,
)
.unwrap();
assert!(hover.is_none());
}
#[test]
fn hover_descend_macros_avoids_duplicates() {
check(
r#"
macro_rules! dupe_use {
($local:ident) => {
{
$local;
$local;
}
}
}
fn foo() {
let local = 0;
dupe_use!(local$0);
}
"#,
expect![[r#"
*local*
```rust
let local: i32
```
"#]],
);
}
#[test]
fn hover_shows_all_macro_descends() {
check(
r#"
macro_rules! m {
($name:ident) => {
/// Outer
fn $name() {}
mod module {
/// Inner
fn $name() {}
}
};
}
m!(ab$0c);
"#,
expect![[r#"
*abc*
```rust
test::module
```
```rust
fn abc()
```
---
Inner
---
```rust
test
```
```rust
fn abc()
```
---
Outer
"#]],
);
}
#[test]
fn hover_shows_type_of_an_expression() {
check(
r#"
pub fn foo() -> u32 { 1 }
fn main() {
let foo_test = foo()$0;
}
"#,
expect![[r#"
*foo()*
```rust
u32
```
"#]],
);
}
#[test]
fn hover_remove_markdown_if_configured() {
check_hover_no_markdown(
r#"
pub fn foo() -> u32 { 1 }
fn main() {
let foo_test = foo()$0;
}
"#,
expect![[r#"
*foo()*
u32
"#]],
);
}
#[test]
fn hover_shows_long_type_of_an_expression() {
check(
r#"
struct Scan<A, B, C> { a: A, b: B, c: C }
struct Iter<I> { inner: I }
enum Option<T> { Some(T), None }
struct OtherStruct<T> { i: T }
fn scan<A, B, C>(a: A, b: B, c: C) -> Iter<Scan<OtherStruct<A>, B, C>> {
Iter { inner: Scan { a, b, c } }
}
fn main() {
let num: i32 = 55;
let closure = |memo: &mut u32, value: &u32, _another: &mut u32| -> Option<u32> {
Option::Some(*memo + value)
};
let number = 5u32;
let mut iter$0 = scan(OtherStruct { i: num }, closure, number);
}
"#,
expect![[r#"
*iter*
```rust
let mut iter: Iter<Scan<OtherStruct<OtherStruct<i32>>, |&mut u32, &u32, &mut u32| -> Option<u32>, u32>>
```
"#]],
);
}
#[test]
fn hover_shows_fn_signature() {
// Single file with result
check(
r#"
pub fn foo() -> u32 { 1 }
fn main() { let foo_test = fo$0o(); }
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
pub fn foo() -> u32
```
"#]],
);
// Multiple candidates but results are ambiguous.
check(
r#"
//- /a.rs
pub fn foo() -> u32 { 1 }
//- /b.rs
pub fn foo() -> &str { "" }
//- /c.rs
pub fn foo(a: u32, b: u32) {}
//- /main.rs
mod a;
mod b;
mod c;
fn main() { let foo_test = fo$0o(); }
"#,
expect![[r#"
*foo*
```rust
{unknown}
```
"#]],
);
// Use literal `crate` in path
check(
r#"
pub struct X;
fn foo() -> crate::X { X }
fn main() { f$0oo(); }
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
fn foo() -> crate::X
```
"#]],
);
// Check `super` in path
check(
r#"
pub struct X;
mod m { pub fn foo() -> super::X { super::X } }
fn main() { m::f$0oo(); }
"#,
expect![[r#"
*foo*
```rust
test::m
```
```rust
pub fn foo() -> super::X
```
"#]],
);
}
#[test]
fn hover_shows_fn_signature_with_type_params() {
check(
r#"
pub fn foo<'a, T: AsRef<str>>(b: &'a T) -> &'a str { }
fn main() { let foo_test = fo$0o(); }
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
pub fn foo<'a, T>(b: &'a T) -> &'a str
where
T: AsRef<str>,
```
"#]],
);
}
#[test]
fn hover_shows_fn_signature_on_fn_name() {
check(
r#"
pub fn foo$0(a: u32, b: u32) -> u32 {}
fn main() { }
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
pub fn foo(a: u32, b: u32) -> u32
```
"#]],
);
}
#[test]
fn hover_shows_fn_doc() {
check(
r#"
/// # Example
/// ```
/// # use std::path::Path;
/// #
/// foo(Path::new("hello, world!"))
/// ```
pub fn foo$0(_: &Path) {}
fn main() { }
"#,
expect![[r##"
*foo*
```rust
test
```
```rust
pub fn foo(_: &Path)
```
---
# Example
```
# use std::path::Path;
#
foo(Path::new("hello, world!"))
```
"##]],
);
}
#[test]
fn hover_shows_fn_doc_attr_raw_string() {
check(
r##"
#[doc = r#"Raw string doc attr"#]
pub fn foo$0(_: &Path) {}
fn main() { }
"##,
expect![[r##"
*foo*
```rust
test
```
```rust
pub fn foo(_: &Path)
```
---
Raw string doc attr
"##]],
);
}
#[test]
fn hover_shows_struct_field_info() {
// Hovering over the field when instantiating
check(
r#"
struct Foo { field_a: u32 }
fn main() {
let foo = Foo { field_a$0: 0, };
}
"#,
expect![[r#"
*field_a*
```rust
test::Foo
```
```rust
field_a: u32
```
"#]],
);
// Hovering over the field in the definition
check(
r#"
struct Foo { field_a$0: u32 }
fn main() {
let foo = Foo { field_a: 0 };
}
"#,
expect![[r#"
*field_a*
```rust
test::Foo
```
```rust
field_a: u32
```
"#]],
);
}
#[test]
fn hover_const_static() {
check(
r#"const foo$0: u32 = 123;"#,
expect![[r#"
hir: show const value in hover
2021-11-17 05:49:27 +00:00
*foo*
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
```rust
test
```
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
```rust
const foo: u32 = 123
```
"#]],
Split the hover module up
2021-09-23 19:54:57 +02:00
);
more complicated const test
2021-11-18 04:14:11 +00:00
check(
r#"
const foo$0: u32 = {
let x = foo();
x + 100
};"#,
expect![[r#"
*foo*
```rust
test
```
```rust
const foo: u32 = {
let x = foo();
x + 100
}
```
"#]],
);
Split the hover module up
2021-09-23 19:54:57 +02:00
check(
r#"static foo$0: u32 = 456;"#,
expect![[r#"
ide: display static values in hover
2021-11-18 04:47:07 +00:00
*foo*
Split the hover module up
2021-09-23 19:54:57 +02:00
ide: display static values in hover
2021-11-18 04:47:07 +00:00
```rust
test
```
Split the hover module up
2021-09-23 19:54:57 +02:00
ide: display static values in hover
2021-11-18 04:47:07 +00:00
```rust
static foo: u32 = 456
```
"#]],
Split the hover module up
2021-09-23 19:54:57 +02:00
);
}
#[test]
fn hover_default_generic_types() {
check(
r#"
struct Test<K, T = u8> { k: K, t: T }
fn main() {
let zz$0 = Test { t: 23u8, k: 33 };
}"#,
expect![[r#"
*zz*
```rust
let zz: Test<i32, u8>
```
"#]],
);
}
#[test]
fn hover_some() {
check(
r#"
enum Option<T> { Some(T) }
use Option::Some;
fn main() { So$0me(12); }
"#,
expect![[r#"
*Some*
```rust
test::Option
```
```rust
Some(T)
```
"#]],
);
check(
r#"
enum Option<T> { Some(T) }
use Option::Some;
fn main() { let b$0ar = Some(12); }
"#,
expect![[r#"
*bar*
```rust
let bar: Option<i32>
```
"#]],
);
}
#[test]
fn hover_enum_variant() {
check(
r#"
enum Option<T> {
/// The None variant
Non$0e
}
"#,
expect![[r#"
*None*
```rust
test::Option
```
```rust
None
```
---
The None variant
"#]],
);
check(
r#"
enum Option<T> {
/// The Some variant
Some(T)
}
fn main() {
let s = Option::Som$0e(12);
}
"#,
expect![[r#"
*Some*
```rust
test::Option
```
```rust
Some(T)
```
---
The Some variant
"#]],
);
}
#[test]
fn hover_for_local_variable() {
check(
r#"fn func(foo: i32) { fo$0o; }"#,
expect![[r#"
*foo*
```rust
foo: i32
```
"#]],
)
}
#[test]
fn hover_for_local_variable_pat() {
check(
r#"fn func(fo$0o: i32) {}"#,
expect![[r#"
*foo*
```rust
foo: i32
```
"#]],
)
}
#[test]
fn hover_local_var_edge() {
check(
r#"fn func(foo: i32) { if true { $0foo; }; }"#,
expect![[r#"
*foo*
```rust
foo: i32
```
"#]],
)
}
#[test]
fn hover_for_param_edge() {
check(
r#"fn func($0foo: i32) {}"#,
expect![[r#"
*foo*
```rust
foo: i32
```
"#]],
)
}
#[test]
fn hover_for_param_with_multiple_traits() {
check(
r#"
//- minicore: sized
trait Deref {
type Target: ?Sized;
}
trait DerefMut {
type Target: ?Sized;
}
fn f(_x$0: impl Deref<Target=u8> + DerefMut<Target=u8>) {}"#,
expect![[r#"
*_x*
```rust
_x: impl Deref<Target = u8> + DerefMut<Target = u8>
```
"#]],
)
}
#[test]
fn test_hover_infer_associated_method_result() {
check(
r#"
struct Thing { x: u32 }
impl Thing {
fn new() -> Thing { Thing { x: 0 } }
}
fn main() { let foo_$0test = Thing::new(); }
"#,
expect![[r#"
*foo_test*
```rust
let foo_test: Thing
```
"#]],
)
}
#[test]
fn test_hover_infer_associated_method_exact() {
check(
r#"
mod wrapper {
struct Thing { x: u32 }
impl Thing {
fn new() -> Thing { Thing { x: 0 } }
}
}
fn main() { let foo_test = wrapper::Thing::new$0(); }
"#,
expect![[r#"
*new*
```rust
test::wrapper::Thing
```
```rust
fn new() -> Thing
```
"#]],
)
}
#[test]
fn test_hover_infer_associated_const_in_pattern() {
check(
r#"
struct X;
impl X {
const C: u32 = 1;
}
fn main() {
match 1 {
X::C$0 => {},
2 => {},
_ => {}
};
}
"#,
expect![[r#"
hir: show const value in hover
2021-11-17 05:49:27 +00:00
*C*
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
```rust
test
```
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
```rust
const C: u32 = 1
```
"#]],
Split the hover module up
2021-09-23 19:54:57 +02:00
)
}
#[test]
fn test_hover_self() {
check(
r#"
struct Thing { x: u32 }
impl Thing {
fn new() -> Self { Self$0 { x: 0 } }
}
"#,
expect![[r#"
*Self*
```rust
test
```
```rust
struct Thing
```
"#]],
);
check(
r#"
struct Thing { x: u32 }
impl Thing {
fn new() -> Self$0 { Self { x: 0 } }
}
"#,
expect![[r#"
*Self*
```rust
test
```
```rust
struct Thing
```
"#]],
);
check(
r#"
enum Thing { A }
impl Thing {
pub fn new() -> Self$0 { Thing::A }
}
"#,
expect![[r#"
*Self*
```rust
test
```
```rust
enum Thing
```
"#]],
);
check(
r#"
enum Thing { A }
impl Thing {
pub fn thing(a: Self$0) {}
}
"#,
expect![[r#"
*Self*
```rust
test
```
```rust
enum Thing
```
"#]],
);
}
#[test]
fn test_hover_shadowing_pat() {
check(
r#"
fn x() {}
fn y() {
let x = 0i32;
x$0;
}
"#,
expect![[r#"
*x*
```rust
let x: i32
```
"#]],
)
}
#[test]
fn test_hover_macro_invocation() {
check(
r#"
macro_rules! foo { () => {} }
fn f() { fo$0o!(); }
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
macro_rules! foo
```
"#]],
)
}
#[test]
fn test_hover_macro2_invocation() {
check(
r#"
/// foo bar
///
/// foo bar baz
macro foo() {}
fn f() { fo$0o!(); }
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
macro foo
```
---
foo bar
foo bar baz
"#]],
)
}
#[test]
fn test_hover_tuple_field() {
check(
r#"struct TS(String, i32$0);"#,
expect![[r#"
*i32*
```rust
i32
```
"#]],
)
}
#[test]
fn test_hover_through_macro() {
check(
r#"
macro_rules! id { ($($tt:tt)*) => { $($tt)* } }
fn foo() {}
id! {
fn bar() { fo$0o(); }
}
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
fn foo()
```
"#]],
);
}
#[test]
fn test_hover_through_attr() {
check(
r#"
//- proc_macros: identity
#[proc_macros::identity]
fn foo$0() {}
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
fn foo()
```
"#]],
);
}
#[test]
fn test_hover_through_expr_in_macro() {
check(
r#"
macro_rules! id { ($($tt:tt)*) => { $($tt)* } }
fn foo(bar:u32) { let a = id!(ba$0r); }
"#,
expect![[r#"
*bar*
```rust
bar: u32
```
"#]],
);
}
#[test]
fn test_hover_through_expr_in_macro_recursive() {
check(
r#"
macro_rules! id_deep { ($($tt:tt)*) => { $($tt)* } }
macro_rules! id { ($($tt:tt)*) => { id_deep!($($tt)*) } }
fn foo(bar:u32) { let a = id!(ba$0r); }
"#,
expect![[r#"
*bar*
```rust
bar: u32
```
"#]],
);
}
#[test]
fn test_hover_through_func_in_macro_recursive() {
check(
r#"
macro_rules! id_deep { ($($tt:tt)*) => { $($tt)* } }
macro_rules! id { ($($tt:tt)*) => { id_deep!($($tt)*) } }
fn bar() -> u32 { 0 }
fn foo() { let a = id!([0u32, bar($0)] ); }
"#,
expect![[r#"
*bar()*
```rust
u32
```
"#]],
);
}
#[test]
fn test_hover_through_literal_string_in_macro() {
check(
r#"
macro_rules! arr { ($($tt:tt)*) => { [$($tt)*)] } }
fn foo() {
let mastered_for_itunes = "";
let _ = arr!("Tr$0acks", &mastered_for_itunes);
}
"#,
expect![[r#"
*"Tracks"*
```rust
&str
```
"#]],
);
}
#[test]
fn test_hover_through_assert_macro() {
check(
r#"
#[rustc_builtin_macro]
macro_rules! assert {}
fn bar() -> bool { true }
fn foo() {
assert!(ba$0r());
}
"#,
expect![[r#"
*bar*
```rust
test
```
```rust
fn bar() -> bool
```
"#]],
);
}
#[test]
fn test_hover_through_literal_string_in_builtin_macro() {
check_hover_no_result(
r#"
#[rustc_builtin_macro]
macro_rules! format {}
fn foo() {
format!("hel$0lo {}", 0);
}
"#,
);
}
#[test]
fn test_hover_non_ascii_space_doc() {
check(
"
///　<- `\u{3000}` here
fn foo() { }
fn bar() { fo$0o(); }
",
expect![[r#"
*foo*
```rust
test
```
```rust
fn foo()
```
---
\<- `　` here
"#]],
);
}
#[test]
fn test_hover_function_show_qualifiers() {
check(
r#"async fn foo$0() {}"#,
expect![[r#"
*foo*
```rust
test
```
```rust
async fn foo()
```
"#]],
);
check(
r#"pub const unsafe fn foo$0() {}"#,
expect![[r#"
*foo*
```rust
test
```
```rust
pub const unsafe fn foo()
```
"#]],
);
// Top level `pub(crate)` will be displayed as no visibility.
check(
r#"mod m { pub(crate) async unsafe extern "C" fn foo$0() {} }"#,
expect![[r#"
*foo*
```rust
test::m
```
```rust
pub(crate) async unsafe extern "C" fn foo()
```
"#]],
);
}
#[test]
fn test_hover_trait_show_qualifiers() {
check_actions(
r"unsafe trait foo$0() {}",
expect![[r#"
[
Implementation(
FilePosition {
file_id: FileId(
0,
),
offset: 13,
},
),
]
"#]],
);
}
#[test]
fn test_hover_extern_crate() {
check(
r#"
//- /main.rs crate:main deps:std
extern crate st$0d;
//- /std/lib.rs crate:std
//! Standard library for this test
//!
//! Printed?
//! abc123
"#,
expect![[r#"
*std*
```rust
extern crate std
```
---
Standard library for this test
Printed?
abc123
"#]],
);
check(
r#"
//- /main.rs crate:main deps:std
extern crate std as ab$0c;
//- /std/lib.rs crate:std
//! Standard library for this test
//!
//! Printed?
//! abc123
"#,
expect![[r#"
*abc*
```rust
extern crate std
```
---
Standard library for this test
Printed?
abc123
"#]],
);
}
#[test]
fn test_hover_mod_with_same_name_as_function() {
check(
r#"
use self::m$0y::Bar;
mod my { pub struct Bar; }
fn my() {}
"#,
expect![[r#"
*my*
```rust
test
```
```rust
mod my
```
"#]],
);
}
#[test]
fn test_hover_struct_doc_comment() {
check(
r#"
/// This is an example
/// multiline doc
///
/// # Example
///
/// ```
/// let five = 5;
///
/// assert_eq!(6, my_crate::add_one(5));
/// ```
struct Bar;
fn foo() { let bar = Ba$0r; }
"#,
expect![[r##"
*Bar*
```rust
test
```
```rust
struct Bar
```
---
This is an example
multiline doc
# Example
```
let five = 5;
assert_eq!(6, my_crate::add_one(5));
```
"##]],
);
}
#[test]
fn test_hover_struct_doc_attr() {
check(
r#"
#[doc = "bar docs"]
struct Bar;
fn foo() { let bar = Ba$0r; }
"#,
expect![[r#"
*Bar*
```rust
test
```
```rust
struct Bar
```
---
bar docs
"#]],
);
}
#[test]
fn test_hover_struct_doc_attr_multiple_and_mixed() {
check(
r#"
/// bar docs 0
#[doc = "bar docs 1"]
#[doc = "bar docs 2"]
struct Bar;
fn foo() { let bar = Ba$0r; }
"#,
expect![[r#"
*Bar*
```rust
test
```
```rust
struct Bar
```
---
bar docs 0
bar docs 1
bar docs 2
"#]],
);
}
#[test]
fn test_hover_external_url() {
check(
r#"
pub struct Foo;
/// [external](https://www.google.com)
pub struct B$0ar
"#,
expect![[r#"
*Bar*
```rust
test
```
```rust
pub struct Bar
```
---
[external](https://www.google.com)
"#]],
);
}
// Check that we don't rewrite links which we can't identify
#[test]
fn test_hover_unknown_target() {
check(
r#"
pub struct Foo;
/// [baz](Baz)
pub struct B$0ar
"#,
expect![[r#"
*Bar*
```rust
test
```
```rust
pub struct Bar
```
---
[baz](Baz)
"#]],
);
}
#[test]
fn test_hover_no_links() {
check_hover_no_links(
r#"
/// Test cases:
/// case 1. bare URL: https://www.example.com/
/// case 2. inline URL with title: [example](https://www.example.com/)
/// case 3. code reference: [`Result`]
/// case 4. code reference but miss footnote: [`String`]
/// case 5. autolink: <http://www.example.com/>
/// case 6. email address: <test@example.com>
/// case 7. reference: [example][example]
/// case 8. collapsed link: [example][]
/// case 9. shortcut link: [example]
/// case 10. inline without URL: [example]()
/// case 11. reference: [foo][foo]
/// case 12. reference: [foo][bar]
/// case 13. collapsed link: [foo][]
/// case 14. shortcut link: [foo]
/// case 15. inline without URL: [foo]()
/// case 16. just escaped text: \[foo]
/// case 17. inline link: [Foo](foo::Foo)
///
/// [`Result`]: ../../std/result/enum.Result.html
/// [^example]: https://www.example.com/
pub fn fo$0o() {}
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
pub fn foo()
```
---
Test cases:
case 1. bare URL: https://www.example.com/
case 2. inline URL with title: [example](https://www.example.com/)
case 3. code reference: `Result`
case 4. code reference but miss footnote: `String`
case 5. autolink: http://www.example.com/
case 6. email address: test@example.com
case 7. reference: example
case 8. collapsed link: example
case 9. shortcut link: example
case 10. inline without URL: example
case 11. reference: foo
case 12. reference: foo
case 13. collapsed link: foo
case 14. shortcut link: foo
case 15. inline without URL: foo
case 16. just escaped text: \[foo\]
case 17. inline link: Foo
[^example]: https://www.example.com/
"#]],
);
}
#[test]
fn test_hover_macro_generated_struct_fn_doc_comment() {
cov_mark::check!(hover_macro_generated_struct_fn_doc_comment);
check(
r#"
macro_rules! bar {
() => {
struct Bar;
impl Bar {
/// Do the foo
fn foo(&self) {}
}
}
}
bar!();
fn foo() { let bar = Bar; bar.fo$0o(); }
"#,
expect![[r#"
*foo*
```rust
test::Bar
```
```rust
fn foo(&self)
```
---
Do the foo
"#]],
);
}
#[test]
fn test_hover_macro_generated_struct_fn_doc_attr() {
cov_mark::check!(hover_macro_generated_struct_fn_doc_attr);
check(
r#"
macro_rules! bar {
() => {
struct Bar;
impl Bar {
#[doc = "Do the foo"]
fn foo(&self) {}
}
}
}
bar!();
fn foo() { let bar = Bar; bar.fo$0o(); }
"#,
expect![[r#"
*foo*
```rust
test::Bar
```
```rust
fn foo(&self)
```
---
Do the foo
"#]],
);
}
#[test]
fn test_hover_trait_has_impl_action() {
check_actions(
r#"trait foo$0() {}"#,
expect![[r#"
[
Implementation(
FilePosition {
file_id: FileId(
0,
),
offset: 6,
},
),
]
"#]],
);
}
#[test]
fn test_hover_struct_has_impl_action() {
check_actions(
r"struct foo$0() {}",
expect![[r#"
[
Implementation(
FilePosition {
file_id: FileId(
0,
),
offset: 7,
},
),
]
"#]],
);
}
#[test]
fn test_hover_union_has_impl_action() {
check_actions(
r#"union foo$0() {}"#,
expect![[r#"
[
Implementation(
FilePosition {
file_id: FileId(
0,
),
offset: 6,
},
),
]
"#]],
);
}
#[test]
fn test_hover_enum_has_impl_action() {
check_actions(
r"enum foo$0() { A, B }",
expect![[r#"
[
Implementation(
FilePosition {
file_id: FileId(
0,
),
offset: 5,
},
),
]
"#]],
);
}
#[test]
fn test_hover_self_has_impl_action() {
check_actions(
r#"struct foo where Self$0:;"#,
expect![[r#"
[
Implementation(
FilePosition {
file_id: FileId(
0,
),
offset: 7,
},
),
]
"#]],
);
}
#[test]
fn test_hover_test_has_action() {
check_actions(
r#"
#[test]
fn foo_$0test() {}
"#,
expect![[r#"
ide: show go to for function hover return type
2021-11-18 08:00:22 +00:00
[
Reference(
FilePosition {
file_id: FileId(
0,
),
offset: 11,
},
),
Runnable(
Runnable {
use_name_in_title: false,
nav: NavigationTarget {
Split the hover module up
2021-09-23 19:54:57 +02:00
file_id: FileId(
0,
),
ide: show go to for function hover return type
2021-11-18 08:00:22 +00:00
full_range: 0..24,
focus_range: 11..19,
name: "foo_test",
kind: Function,
Split the hover module up
2021-09-23 19:54:57 +02:00
},
ide: show go to for function hover return type
2021-11-18 08:00:22 +00:00
kind: Test {
test_id: Path(
"foo_test",
),
attr: TestAttr {
ignore: false,
Split the hover module up
2021-09-23 19:54:57 +02:00
},
},
ide: show go to for function hover return type
2021-11-18 08:00:22 +00:00
cfg: None,
},
),
GoToType(
[],
),
]
"#]],
Split the hover module up
2021-09-23 19:54:57 +02:00
);
}
#[test]
fn test_hover_test_mod_has_action() {
check_actions(
r#"
mod tests$0 {
#[test]
fn foo_test() {}
}
"#,
expect![[r#"
[
Runnable(
Runnable {
use_name_in_title: false,
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..46,
focus_range: 4..9,
name: "tests",
kind: Module,
description: "mod tests",
},
kind: TestMod {
path: "tests",
},
cfg: None,
},
),
]
"#]],
);
}
#[test]
fn test_hover_struct_has_goto_type_action() {
check_actions(
r#"
struct S{ f1: u32 }
fn main() { let s$0t = S{ f1:0 }; }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..19,
focus_range: 7..8,
name: "S",
kind: Struct,
description: "struct S",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_generic_struct_has_goto_type_actions() {
check_actions(
r#"
struct Arg(u32);
struct S<T>{ f1: T }
fn main() { let s$0t = S{ f1:Arg(0) }; }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 17..37,
focus_range: 24..25,
name: "S",
kind: Struct,
description: "struct S<T>",
},
},
HoverGotoTypeData {
mod_path: "test::Arg",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..16,
focus_range: 7..10,
name: "Arg",
kind: Struct,
description: "struct Arg",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_generic_struct_has_flattened_goto_type_actions() {
check_actions(
r#"
struct Arg(u32);
struct S<T>{ f1: T }
fn main() { let s$0t = S{ f1: S{ f1: Arg(0) } }; }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 17..37,
focus_range: 24..25,
name: "S",
kind: Struct,
description: "struct S<T>",
},
},
HoverGotoTypeData {
mod_path: "test::Arg",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..16,
focus_range: 7..10,
name: "Arg",
kind: Struct,
description: "struct Arg",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_tuple_has_goto_type_actions() {
check_actions(
r#"
struct A(u32);
struct B(u32);
mod M {
pub struct C(u32);
}
fn main() { let s$0t = (A(1), B(2), M::C(3) ); }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::A",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..14,
focus_range: 7..8,
name: "A",
kind: Struct,
description: "struct A",
},
},
HoverGotoTypeData {
mod_path: "test::B",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 15..29,
focus_range: 22..23,
name: "B",
kind: Struct,
description: "struct B",
},
},
HoverGotoTypeData {
mod_path: "test::M::C",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 42..60,
focus_range: 53..54,
name: "C",
kind: Struct,
description: "pub struct C",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_return_impl_trait_has_goto_type_action() {
check_actions(
r#"
trait Foo {}
fn foo() -> impl Foo {}
fn main() { let s$0t = foo(); }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..12,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_generic_return_impl_trait_has_goto_type_action() {
check_actions(
r#"
trait Foo<T> {}
struct S;
fn foo() -> impl Foo<S> {}
fn main() { let s$0t = foo(); }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..15,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo<T>",
},
},
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 16..25,
focus_range: 23..24,
name: "S",
kind: Struct,
description: "struct S",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_return_impl_traits_has_goto_type_action() {
check_actions(
r#"
trait Foo {}
trait Bar {}
fn foo() -> impl Foo + Bar {}
fn main() { let s$0t = foo(); }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..12,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
HoverGotoTypeData {
mod_path: "test::Bar",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 13..25,
focus_range: 19..22,
name: "Bar",
kind: Trait,
description: "trait Bar",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_generic_return_impl_traits_has_goto_type_action() {
check_actions(
r#"
trait Foo<T> {}
trait Bar<T> {}
struct S1 {}
struct S2 {}
fn foo() -> impl Foo<S1> + Bar<S2> {}
fn main() { let s$0t = foo(); }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..15,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo<T>",
},
},
HoverGotoTypeData {
mod_path: "test::Bar",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 16..31,
focus_range: 22..25,
name: "Bar",
kind: Trait,
description: "trait Bar<T>",
},
},
HoverGotoTypeData {
mod_path: "test::S1",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 32..44,
focus_range: 39..41,
name: "S1",
kind: Struct,
description: "struct S1",
},
},
HoverGotoTypeData {
mod_path: "test::S2",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 45..57,
focus_range: 52..54,
name: "S2",
kind: Struct,
description: "struct S2",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_arg_impl_trait_has_goto_type_action() {
check_actions(
r#"
trait Foo {}
fn foo(ar$0g: &impl Foo) {}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..12,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_arg_impl_traits_has_goto_type_action() {
check_actions(
r#"
trait Foo {}
trait Bar<T> {}
struct S{}
fn foo(ar$0g: &impl Foo + Bar<S>) {}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..12,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
HoverGotoTypeData {
mod_path: "test::Bar",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 13..28,
focus_range: 19..22,
name: "Bar",
kind: Trait,
description: "trait Bar<T>",
},
},
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 29..39,
focus_range: 36..37,
name: "S",
kind: Struct,
description: "struct S",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_async_block_impl_trait_has_goto_type_action() {
check_actions(
r#"
//- minicore: future
struct S;
fn foo() {
let fo$0o = async { S };
}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "core::future::Future",
nav: NavigationTarget {
file_id: FileId(
1,
),
Semantic getter
2021-09-29 14:04:32 +02:00
full_range: 276..458,
focus_range: 315..321,
Split the hover module up
2021-09-23 19:54:57 +02:00
name: "Future",
kind: Trait,
description: "pub trait Future",
},
},
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..9,
focus_range: 7..8,
name: "S",
kind: Struct,
description: "struct S",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_arg_generic_impl_trait_has_goto_type_action() {
check_actions(
r#"
trait Foo<T> {}
struct S {}
fn foo(ar$0g: &impl Foo<S>) {}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..15,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo<T>",
},
},
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 16..27,
focus_range: 23..24,
name: "S",
kind: Struct,
description: "struct S",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_dyn_return_has_goto_type_action() {
check_actions(
r#"
trait Foo {}
struct S;
impl Foo for S {}
struct B<T>{}
fn foo() -> B<dyn Foo> {}
fn main() { let s$0t = foo(); }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::B",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 42..55,
focus_range: 49..50,
name: "B",
kind: Struct,
description: "struct B<T>",
},
},
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..12,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_dyn_arg_has_goto_type_action() {
check_actions(
r#"
trait Foo {}
fn foo(ar$0g: &dyn Foo) {}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..12,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_generic_dyn_arg_has_goto_type_action() {
check_actions(
r#"
trait Foo<T> {}
struct S {}
fn foo(ar$0g: &dyn Foo<S>) {}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..15,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo<T>",
},
},
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 16..27,
focus_range: 23..24,
name: "S",
kind: Struct,
description: "struct S",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_goto_type_action_links_order() {
check_actions(
r#"
trait ImplTrait<T> {}
trait DynTrait<T> {}
struct B<T> {}
struct S {}
fn foo(a$0rg: &impl ImplTrait<B<dyn DynTrait<B<S>>>>) {}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::ImplTrait",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..21,
focus_range: 6..15,
name: "ImplTrait",
kind: Trait,
description: "trait ImplTrait<T>",
},
},
HoverGotoTypeData {
mod_path: "test::B",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 43..57,
focus_range: 50..51,
name: "B",
kind: Struct,
description: "struct B<T>",
},
},
HoverGotoTypeData {
mod_path: "test::DynTrait",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 22..42,
focus_range: 28..36,
name: "DynTrait",
kind: Trait,
description: "trait DynTrait<T>",
},
},
HoverGotoTypeData {
mod_path: "test::S",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 58..69,
focus_range: 65..66,
name: "S",
kind: Struct,
description: "struct S",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_associated_type_has_goto_type_action() {
check_actions(
r#"
trait Foo {
type Item;
fn get(self) -> Self::Item {}
}
struct Bar{}
struct S{}
impl Foo for S { type Item = Bar; }
fn test() -> impl Foo { S {} }
fn main() { let s$0t = test().get(); }
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..62,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_const_param_has_goto_type_action() {
check_actions(
r#"
struct Bar;
struct Foo<const BAR: Bar>;
impl<const BAR: Bar> Foo<BAR$0> {}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Bar",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..11,
focus_range: 7..10,
name: "Bar",
kind: Struct,
description: "struct Bar",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_type_param_has_goto_type_action() {
check_actions(
r#"
trait Foo {}
fn foo<T: Foo>(t: T$0){}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..12,
focus_range: 6..9,
name: "Foo",
kind: Trait,
description: "trait Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn test_hover_self_has_go_to_type() {
check_actions(
r#"
struct Foo;
impl Foo {
fn foo(&self$0) {}
}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..11,
focus_range: 7..10,
name: "Foo",
kind: Struct,
description: "struct Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn hover_displays_normalized_crate_names() {
check(
r#"
//- /lib.rs crate:name-with-dashes
pub mod wrapper {
pub struct Thing { x: u32 }
impl Thing {
pub fn new() -> Thing { Thing { x: 0 } }
}
}
//- /main.rs crate:main deps:name-with-dashes
fn main() { let foo_test = name_with_dashes::wrapper::Thing::new$0(); }
"#,
expect![[r#"
*new*
```rust
name_with_dashes::wrapper::Thing
```
```rust
pub fn new() -> Thing
```
"#]],
)
}
#[test]
fn hover_field_pat_shorthand_ref_match_ergonomics() {
check(
r#"
struct S {
f: i32,
}
fn main() {
let s = S { f: 0 };
let S { f$0 } = &s;
}
"#,
expect![[r#"
*f*
```rust
f: &i32
```
---
```rust
test::S
```
```rust
f: i32
```
"#]],
);
}
#[test]
fn hover_self_param_shows_type() {
check(
r#"
struct Foo {}
impl Foo {
fn bar(&sel$0f) {}
}
"#,
expect![[r#"
*self*
```rust
self: &Foo
```
"#]],
);
}
#[test]
fn hover_self_param_shows_type_for_arbitrary_self_type() {
check(
r#"
struct Arc<T>(T);
struct Foo {}
impl Foo {
fn bar(sel$0f: Arc<Foo>) {}
}
"#,
expect![[r#"
*self*
```rust
self: Arc<Foo>
```
"#]],
);
}
#[test]
fn hover_doc_outer_inner() {
check(
r#"
/// Be quick;
mod Foo$0 {
//! time is mana
/// This comment belongs to the function
fn foo() {}
}
"#,
expect![[r#"
*Foo*
```rust
test
```
```rust
mod Foo
```
---
Be quick;
time is mana
"#]],
);
}
#[test]
fn hover_doc_outer_inner_attribue() {
check(
r#"
#[doc = "Be quick;"]
mod Foo$0 {
#![doc = "time is mana"]
#[doc = "This comment belongs to the function"]
fn foo() {}
}
"#,
expect![[r#"
*Foo*
```rust
test
```
```rust
mod Foo
```
---
Be quick;
time is mana
"#]],
);
}
#[test]
fn hover_doc_block_style_indentend() {
check(
r#"
/**
foo
```rust
let x = 3;
```
*/
fn foo$0() {}
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
fn foo()
```
---
foo
```rust
let x = 3;
```
"#]],
);
}
#[test]
fn hover_comments_dont_highlight_parent() {
cov_mark::check!(no_highlight_on_comment_hover);
check_hover_no_result(
r#"
fn no_hover() {
// no$0hover
}
"#,
);
}
#[test]
fn hover_label() {
check(
r#"
fn foo() {
'label$0: loop {}
}
"#,
expect![[r#"
*'label*
```rust
'label
```
"#]],
);
}
#[test]
fn hover_lifetime() {
check(
r#"fn foo<'lifetime>(_: &'lifetime$0 ()) {}"#,
expect![[r#"
*'lifetime*
```rust
'lifetime
```
"#]],
);
}
#[test]
fn hover_type_param() {
check(
r#"
//- minicore: sized
struct Foo<T>(T);
trait TraitA {}
trait TraitB {}
impl<T: TraitA + TraitB> Foo<T$0> where T: Sized {}
"#,
expect![[r#"
*T*
```rust
T: TraitA + TraitB
```
"#]],
);
check(
r#"
//- minicore: sized
struct Foo<T>(T);
impl<T> Foo<T$0> {}
"#,
expect![[r#"
*T*
```rust
T
```
"#]],
);
// lifetimes bounds arent being tracked yet
check(
r#"
//- minicore: sized
struct Foo<T>(T);
impl<T: 'static> Foo<T$0> {}
"#,
expect![[r#"
*T*
```rust
T
```
"#]],
);
}
#[test]
fn hover_type_param_sized_bounds() {
// implicit `: Sized` bound
check(
r#"
//- minicore: sized
trait Trait {}
struct Foo<T>(T);
impl<T: Trait> Foo<T$0> {}
"#,
expect![[r#"
*T*
```rust
T: Trait
```
"#]],
);
check(
r#"
//- minicore: sized
trait Trait {}
struct Foo<T>(T);
impl<T: Trait + ?Sized> Foo<T$0> {}
"#,
expect![[r#"
*T*
```rust
T: Trait + ?Sized
```
"#]],
);
}
mod type_param_sized_bounds {
use super::*;
#[test]
fn single_implicit() {
check(
r#"
//- minicore: sized
fn foo<T$0>() {}
"#,
expect![[r#"
*T*
```rust
T
```
"#]],
);
}
#[test]
fn single_explicit() {
check(
r#"
//- minicore: sized
fn foo<T$0: Sized>() {}
"#,
expect![[r#"
*T*
```rust
T
```
"#]],
);
}
#[test]
fn single_relaxed() {
check(
r#"
//- minicore: sized
fn foo<T$0: ?Sized>() {}
"#,
expect![[r#"
*T*
```rust
T: ?Sized
```
"#]],
);
}
#[test]
fn multiple_implicit() {
check(
r#"
//- minicore: sized
trait Trait {}
fn foo<T$0: Trait>() {}
"#,
expect![[r#"
*T*
```rust
T: Trait
```
"#]],
);
}
#[test]
fn multiple_explicit() {
check(
r#"
//- minicore: sized
trait Trait {}
fn foo<T$0: Trait + Sized>() {}
"#,
expect![[r#"
*T*
```rust
T: Trait
```
"#]],
);
}
#[test]
fn multiple_relaxed() {
check(
r#"
//- minicore: sized
trait Trait {}
fn foo<T$0: Trait + ?Sized>() {}
"#,
expect![[r#"
*T*
```rust
T: Trait + ?Sized
```
"#]],
);
}
#[test]
fn mixed() {
check(
r#"
//- minicore: sized
fn foo<T$0: ?Sized + Sized + Sized>() {}
"#,
expect![[r#"
*T*
```rust
T
```
"#]],
);
check(
r#"
//- minicore: sized
trait Trait {}
fn foo<T$0: Sized + ?Sized + Sized + Trait>() {}
"#,
expect![[r#"
*T*
```rust
T: Trait
```
"#]],
);
}
}
#[test]
fn hover_const_param() {
check(
r#"
struct Foo<const LEN: usize>;
impl<const LEN: usize> Foo<LEN$0> {}
"#,
expect![[r#"
*LEN*
```rust
const LEN: usize
```
"#]],
);
}
#[test]
fn hover_const_pat() {
check(
r#"
/// This is a doc
const FOO: usize = 3;
fn foo() {
match 5 {
FOO$0 => (),
_ => ()
}
}
"#,
expect![[r#"
hir: show const value in hover
2021-11-17 05:49:27 +00:00
*FOO*
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
```rust
test
```
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
```rust
const FOO: usize = 3
```
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
---
Split the hover module up
2021-09-23 19:54:57 +02:00
hir: show const value in hover
2021-11-17 05:49:27 +00:00
This is a doc
"#]],
Split the hover module up
2021-09-23 19:54:57 +02:00
);
}
#[test]
fn hover_mod_def() {
check(
r#"
//- /main.rs
mod foo$0;
//- /foo.rs
//! For the horde!
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
mod foo
```
---
For the horde!
"#]],
);
}
#[test]
fn hover_self_in_use() {
check(
r#"
//! This should not appear
mod foo {
/// But this should appear
pub mod bar {}
}
use foo::bar::{self$0};
"#,
expect![[r#"
*self*
```rust
test::foo
```
```rust
mod bar
```
---
But this should appear
"#]],
)
}
#[test]
fn hover_keyword() {
check(
r#"
//- /main.rs crate:main deps:std
fn f() { retur$0n; }
//- /libstd.rs crate:std
/// Docs for return_keyword
mod return_keyword {}
"#,
expect![[r#"
*return*
```rust
return
```
---
Docs for return_keyword
"#]],
);
}
#[test]
fn hover_builtin() {
check(
r#"
//- /main.rs crate:main deps:std
cosnt _: &str$0 = ""; }
//- /libstd.rs crate:std
/// Docs for prim_str
mod prim_str {}
"#,
expect![[r#"
*str*
```rust
str
```
---
Docs for prim_str
"#]],
);
}
#[test]
fn hover_macro_expanded_function() {
check(
r#"
struct S<'a, T>(&'a T);
trait Clone {}
macro_rules! foo {
() => {
fn bar<'t, T: Clone + 't>(s: &mut S<'t, T>, t: u32) -> *mut u32 where
't: 't + 't,
for<'a> T: Clone + 'a
{ 0 as _ }
};
}
foo!();
fn main() {
bar$0;
}
"#,
expect![[r#"
*bar*
```rust
test
```
```rust
fn bar<'t, T>(s: &mut S<'t, T>, t: u32) -> *mut u32
where
T: Clone + 't,
't: 't + 't,
for<'a> T: Clone + 'a,
```
"#]],
)
}
#[test]
fn hover_intra_doc_links() {
check(
r#"
pub mod theitem {
/// This is the item. Cool!
pub struct TheItem;
}
/// Gives you a [`TheItem$0`].
///
/// [`TheItem`]: theitem::TheItem
pub fn gimme() -> theitem::TheItem {
theitem::TheItem
}
"#,
expect![[r#"
*[`TheItem`]*
```rust
test::theitem
```
```rust
pub struct TheItem
```
---
This is the item. Cool!
"#]],
);
}
#[test]
fn hover_generic_assoc() {
check(
r#"
fn foo<T: A>() where T::Assoc$0: {}
trait A {
type Assoc;
}"#,
expect![[r#"
*Assoc*
```rust
test
```
```rust
type Assoc
```
"#]],
);
check(
r#"
fn foo<T: A>() {
let _: <T>::Assoc$0;
}
trait A {
type Assoc;
}"#,
expect![[r#"
*Assoc*
```rust
test
```
```rust
type Assoc
```
"#]],
);
check(
r#"
trait A where
Self::Assoc$0: ,
{
type Assoc;
}"#,
expect![[r#"
*Assoc*
```rust
test
```
```rust
type Assoc
```
"#]],
);
}
#[test]
fn string_shadowed_with_inner_items() {
check(
r#"
//- /main.rs crate:main deps:alloc
/// Custom `String` type.
struct String;
fn f() {
let _: String$0;
fn inner() {}
}
//- /alloc.rs crate:alloc
#[prelude_import]
pub use string::*;
mod string {
/// This is `alloc::String`.
pub struct String;
}
"#,
expect![[r#"
*String*
```rust
main
```
```rust
struct String
```
---
Custom `String` type.
"#]],
)
}
#[test]
fn function_doesnt_shadow_crate_in_use_tree() {
check(
r#"
//- /main.rs crate:main deps:foo
use foo$0::{foo};
//- /foo.rs crate:foo
pub fn foo() {}
"#,
expect![[r#"
*foo*
```rust
extern crate foo
```
"#]],
)
}
#[test]
fn hover_feature() {
check(
r#"#![feature(box_syntax$0)]"#,
expect![[r##"
*box_syntax*
```
box_syntax
```
___
# `box_syntax`
The tracking issue for this feature is: [#49733]
[#49733]: https://github.com/rust-lang/rust/issues/49733
See also [`box_patterns`](box-patterns.md)
------------------------
Currently the only stable way to create a `Box` is via the `Box::new` method.
Also it is not possible in stable Rust to destructure a `Box` in a match
pattern. The unstable `box` keyword can be used to create a `Box`. An example
usage would be:
```rust
#![feature(box_syntax)]
fn main() {
let b = box 5;
}
```
"##]],
)
}
#[test]
fn hover_lint() {
check(
r#"#![allow(arithmetic_overflow$0)]"#,
expect![[r#"
*arithmetic_overflow*
```
arithmetic_overflow
```
___
arithmetic operation overflows
"#]],
)
}
#[test]
fn hover_clippy_lint() {
check(
r#"#![allow(clippy::almost_swapped$0)]"#,
expect![[r#"
*almost_swapped*
```
clippy::almost_swapped
```
___
Checks for `foo = bar; bar = foo` sequences.
"#]],
)
}
#[test]
fn hover_attr_path_qualifier() {
cov_mark::check!(name_ref_classify_attr_path_qualifier);
check(
r#"
//- /foo.rs crate:foo
//- /lib.rs crate:main.rs deps:foo
#[fo$0o::bar()]
struct Foo;
"#,
expect![[r#"
*foo*
```rust
extern crate foo
```
"#]],
)
}
#[test]
fn hover_rename() {
check(
r#"
use self as foo$0;
"#,
expect![[r#"
*foo*
```rust
extern crate test
```
"#]],
);
check(
r#"
mod bar {}
use bar::{self as foo$0};
"#,
expect![[r#"
*foo*
```rust
test
```
```rust
mod bar
```
"#]],
);
check(
r#"
mod bar {
use super as foo$0;
}
"#,
expect![[r#"
*foo*
```rust
extern crate test
```
"#]],
);
check(
r#"
use crate as foo$0;
"#,
expect![[r#"
*foo*
```rust
extern crate test
```
"#]],
);
}
#[test]
fn hover_attribute_in_macro() {
check(
r#"
Refactor ide handling for paths in derive inputs
2021-10-28 16:13:37 +02:00
//- minicore:derive
Split the hover module up
2021-09-23 19:54:57 +02:00
macro_rules! identity {
($struct:item) => {
$struct
};
}
#[rustc_builtin_macro]
pub macro Copy {}
identity!{
#[derive(Copy$0)]
struct Foo;
}
"#,
expect![[r#"
*Copy*
```rust
test
```
```rust
pub macro Copy
```
"#]],
);
}
#[test]
fn hover_derive_input() {
check(
r#"
Refactor ide handling for paths in derive inputs
2021-10-28 16:13:37 +02:00
//- minicore:derive
Split the hover module up
2021-09-23 19:54:57 +02:00
#[rustc_builtin_macro]
pub macro Copy {}
#[derive(Copy$0)]
struct Foo;
"#,
expect![[r#"
*Copy*
```rust
test
```
```rust
pub macro Copy
```
"#]],
);
check(
r#"
Refactor ide handling for paths in derive inputs
2021-10-28 16:13:37 +02:00
//- minicore:derive
Split the hover module up
2021-09-23 19:54:57 +02:00
mod foo {
#[rustc_builtin_macro]
pub macro Copy {}
}
#[derive(foo::Copy$0)]
struct Foo;
"#,
expect![[r#"
*Copy*
```rust
test
```
```rust
pub macro Copy
```
"#]],
);
}
#[test]
fn hover_range_math() {
check_hover_range(
r#"
fn f() { let expr = $01 + 2 * 3$0 }
"#,
expect![[r#"
```rust
i32
```"#]],
);
check_hover_range(
r#"
fn f() { let expr = 1 $0+ 2 * $03 }
"#,
expect![[r#"
```rust
i32
```"#]],
);
check_hover_range(
r#"
fn f() { let expr = 1 + $02 * 3$0 }
"#,
expect![[r#"
```rust
i32
```"#]],
);
}
#[test]
fn hover_range_arrays() {
check_hover_range(
r#"
fn f() { let expr = $0[1, 2, 3, 4]$0 }
"#,
expect![[r#"
```rust
[i32; 4]
```"#]],
);
check_hover_range(
r#"
fn f() { let expr = [1, 2, $03, 4]$0 }
"#,
expect![[r#"
```rust
[i32; 4]
```"#]],
);
check_hover_range(
r#"
fn f() { let expr = [1, 2, $03$0, 4] }
"#,
expect![[r#"
```rust
i32
```"#]],
);
}
#[test]
fn hover_range_functions() {
check_hover_range(
r#"
fn f<T>(a: &[T]) { }
fn b() { $0f$0(&[1, 2, 3, 4, 5]); }
"#,
expect![[r#"
```rust
fn f<i32>(&[i32])
```"#]],
);
check_hover_range(
r#"
fn f<T>(a: &[T]) { }
fn b() { f($0&[1, 2, 3, 4, 5]$0); }
"#,
expect![[r#"
```rust
&[i32; 5]
```"#]],
);
}
#[test]
fn hover_range_shows_nothing_when_invalid() {
check_hover_range_no_results(
r#"
fn f<T>(a: &[T]) { }
fn b()$0 { f(&[1, 2, 3, 4, 5]); }$0
"#,
);
check_hover_range_no_results(
r#"
fn f<T>$0(a: &[T]) { }
fn b() { f(&[1, 2, 3,$0 4, 5]); }
"#,
);
check_hover_range_no_results(
r#"
fn $0f() { let expr = [1, 2, 3, 4]$0 }
"#,
);
}
#[test]
fn hover_range_shows_unit_for_statements() {
check_hover_range(
r#"
fn f<T>(a: &[T]) { }
fn b() { $0f(&[1, 2, 3, 4, 5]); }$0
"#,
expect![[r#"
```rust
()
```"#]],
);
check_hover_range(
r#"
fn f() { let expr$0 = $0[1, 2, 3, 4] }
"#,
expect![[r#"
```rust
()
```"#]],
);
}
#[test]
fn hover_range_for_pat() {
check_hover_range(
r#"
fn foo() {
let $0x$0 = 0;
}
"#,
expect![[r#"
```rust
i32
```"#]],
);
check_hover_range(
r#"
fn foo() {
let $0x$0 = "";
}
"#,
expect![[r#"
```rust
&str
```"#]],
);
}
#[test]
fn hover_range_shows_coercions_if_applicable_expr() {
check_hover_range(
r#"
fn foo() {
let x: &u32 = $0&&&&&0$0;
}
"#,
expect![[r#"
```text
Type: &&&&&u32
Coerced to: &u32
```
"#]],
);
check_hover_range(
r#"
fn foo() {
let x: *const u32 = $0&0$0;
}
"#,
expect![[r#"
```text
Type: &u32
Coerced to: *const u32
```
"#]],
);
}
#[test]
fn hover_range_shows_type_actions() {
check_actions(
r#"
struct Foo;
fn foo() {
let x: &Foo = $0&&&&&Foo$0;
}
"#,
expect![[r#"
[
GoToType(
[
HoverGotoTypeData {
mod_path: "test::Foo",
nav: NavigationTarget {
file_id: FileId(
0,
),
full_range: 0..11,
focus_range: 7..10,
name: "Foo",
kind: Struct,
description: "struct Foo",
},
},
],
),
]
"#]],
);
}
#[test]
fn hover_try_expr_res() {
check_hover_range(
r#"
//- minicore:result
struct FooError;
fn foo() -> Result<(), FooError> {
Ok($0Result::<(), FooError>::Ok(())?$0)
}
"#,
expect![[r#"
```rust
()
```"#]],
);
check_hover_range(
r#"
//- minicore:result
struct FooError;
struct BarError;
fn foo() -> Result<(), FooError> {
Ok($0Result::<(), BarError>::Ok(())?$0)
}
"#,
expect![[r#"
```text
Try Error Type: BarError
Propagated as: FooError
```
"#]],
);
}
#[test]
fn hover_try_expr() {
check_hover_range(
r#"
struct NotResult<T, U>(T, U);
struct Short;
struct Looooong;
fn foo() -> NotResult<(), Looooong> {
$0NotResult((), Short)?$0;
}
"#,
expect![[r#"
```text
Try Target Type: NotResult<(), Short>
Propagated as: NotResult<(), Looooong>
```
"#]],
);
check_hover_range(
r#"
struct NotResult<T, U>(T, U);
struct Short;
struct Looooong;
fn foo() -> NotResult<(), Short> {
$0NotResult((), Looooong)?$0;
}
"#,
expect![[r#"
```text
Try Target Type: NotResult<(), Looooong>
Propagated as: NotResult<(), Short>
```
"#]],
);
}
#[test]
fn hover_try_expr_option() {
cov_mark::check!(hover_try_expr_opt_opt);
check_hover_range(
r#"
//- minicore: option, try
fn foo() -> Option<()> {
$0Some(0)?$0;
None
}
"#,
expect![[r#"
```rust
<Option<i32> as Try>::Output
```"#]],
);
}
#[test]
fn hover_deref_expr() {
check_hover_range(
r#"
//- minicore: deref
use core::ops::Deref;
struct DerefExample<T> {
value: T
}
impl<T> Deref for DerefExample<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
&self.value
}
}
fn foo() {
let x = DerefExample { value: 0 };
let y: i32 = $0*x$0;
}
"#,
expect![[r#"
```text
Dereferenced from: DerefExample<i32>
To type: i32
```
"#]],
);
}
#[test]
fn hover_deref_expr_with_coercion() {
check_hover_range(
r#"
//- minicore: deref
use core::ops::Deref;
struct DerefExample<T> {
value: T
}
impl<T> Deref for DerefExample<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
&self.value
}
}
fn foo() {
let x = DerefExample { value: &&&&&0 };
let y: &i32 = $0*x$0;
}
"#,
expect![[r#"
```text
Dereferenced from: DerefExample<&&&&&i32>
To type: &&&&&i32
Coerced to: &i32
```
"#]],
);
}
#[test]
fn hover_intra_in_macro() {
check(
r#"
macro_rules! foo_macro {
($(#[$attr:meta])* $name:ident) => {
$(#[$attr])*
pub struct $name;
}
}
foo_macro!(
/// Doc comment for [`Foo$0`]
Foo
);
"#,
expect![[r#"
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
*[`Foo`]*
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
```rust
test
```
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
```rust
pub struct Foo
```
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
---
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
Doc comment for [`Foo`](https://doc.rust-lang.org/nightly/test/struct.Foo.html)
"#]],
Split the hover module up
2021-09-23 19:54:57 +02:00
);
}
#[test]
fn hover_intra_in_attr() {
check(
r#"
#[doc = "Doc comment for [`Foo$0`]"]
pub struct Foo;
"#,
expect![[r#"
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
*[`Foo`]*
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
```rust
test
```
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
```rust
pub struct Foo
```
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
---
Split the hover module up
2021-09-23 19:54:57 +02:00
Fix standard library doclinks not going to the correct page
2021-10-20 16:21:33 +02:00
Doc comment for [`Foo`](https://doc.rust-lang.org/nightly/test/struct.Foo.html)
"#]],
Split the hover module up
2021-09-23 19:54:57 +02:00
);
}
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