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Auto merge of #14748 - lumenian:type-alias-layout, r=HKalbasi

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Show type alias layout

This PR expands on #13490 to allow displaying layout data on hover for type aliases.
This commit is contained in:
bors 2023-05-06 19:18:30 +00:00
commit a10fd83120
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::Trait(it) => label_and_docs(db, it),
Definition::TraitAlias(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) => { Definition::BuiltinType(it) => {
return famous_defs return famous_defs
.and_then(|fd| builtin(fd, it)) .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 ```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 ```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 ```rust
type Foo2 = Foo<2> type Foo2 = Foo<2> // size = 0, align = 1
``` ```
"#]], "#]],
); );