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Properly use location links for type hints of impl Future and its assoc type

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This commit is contained in:
Lukas Wirth 2023-02-07 22:42:03 +01:00
parent 0b32b65ca6
commit 2b4a5374ee
4 changed files with 106 additions and 12 deletions
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15
crates/ide/src/inlay_hints.rs
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@ -294,10 +294,12 @@ fn label_of_ty(
) -> Result<(), HirDisplayError> {
let iter_item_type = hint_iterator(sema, famous_defs, &ty);
match iter_item_type {
Some((iter_trait, ty)) => {
Some((iter_trait, item, ty)) => {
const LABEL_START: &str = "impl ";
const LABEL_ITERATOR: &str = "Iterator";
const LABEL_MIDDLE: &str = "<Item = ";
const LABEL_MIDDLE: &str = "<";
const LABEL_ITEM: &str = "Item";
const LABEL_MIDDLE2: &str = " = ";
const LABEL_END: &str = ">";
max_length = max_length.map(|len| {
@ -305,6 +307,7 @@ fn label_of_ty(
LABEL_START.len()
+ LABEL_ITERATOR.len()
+ LABEL_MIDDLE.len()
+ LABEL_MIDDLE2.len()
+ LABEL_END.len(),
)
});
@ -314,6 +317,10 @@ fn label_of_ty(
label_builder.write_str(LABEL_ITERATOR)?;
label_builder.end_location_link();
label_builder.write_str(LABEL_MIDDLE)?;
label_builder.start_location_link(ModuleDef::from(item).into());
label_builder.write_str(LABEL_ITEM)?;
label_builder.end_location_link();
label_builder.write_str(LABEL_MIDDLE2)?;
rec(sema, famous_defs, max_length, ty, label_builder)?;
label_builder.write_str(LABEL_END)?;
Ok(())
@ -437,7 +444,7 @@ fn hint_iterator(
sema: &Semantics<'_, RootDatabase>,
famous_defs: &FamousDefs<'_, '_>,
ty: &hir::Type,
) -> Option<(hir::Trait, hir::Type)> {
) -> Option<(hir::Trait, hir::TypeAlias, hir::Type)> {
let db = sema.db;
let strukt = ty.strip_references().as_adt()?;
let krate = strukt.module(db).krate();
@ -460,7 +467,7 @@ fn hint_iterator(
_ => None,
})?;
if let Some(ty) = ty.normalize_trait_assoc_type(db, &[], assoc_type_item) {
return Some((iter_trait, ty));
return Some((iter_trait, assoc_type_item, ty));
}
}