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Show type alias layout on hover

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This commit is contained in:
Yury Ivanou 2023-05-06 16:58:57 +03:00
parent a4966c9282
commit ecc081d625
2 changed files with 7 additions and 4 deletions
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5
crates/ide/src/hover/render.rs
View File

@ -473,7 +473,10 @@ pub(super) fn definition(
}),
Definition::Trait(it) => label_and_docs(db, it),
Definition::TraitAlias(it) => label_and_docs(db, it),
Definition::TypeAlias(it) => label_and_docs(db, it),
Definition::TypeAlias(it) => label_and_layout_info_and_docs(db, it, |&it| {
let layout = it.ty(db).layout(db).ok()?;
Some(format!("size = {}, align = {}", layout.size.bytes(), layout.align.abi.bytes()))
}),
Definition::BuiltinType(it) => {
return famous_defs
.and_then(|fd| builtin(fd, it))

6
crates/ide/src/hover/tests.rs
View File

@ -1405,7 +1405,7 @@ fn test_hover_function_pointer_show_identifiers() {
```
```rust
type foo = fn(a: i32, b: i32) -> i32
type foo = fn(a: i32, b: i32) -> i32 // size = 8, align = 8
```
"#]],
);
@ -1423,7 +1423,7 @@ fn test_hover_function_pointer_no_identifier() {
```
```rust
type foo = fn(i32, i32) -> i32
type foo = fn(i32, i32) -> i32 // size = 8, align = 8
```
"#]],
);
@ -3555,7 +3555,7 @@ fn hover_const_generic_type_alias() {
```
```rust
type Foo2 = Foo<2>
type Foo2 = Foo<2> // size = 0, align = 1
```
"#]],
);