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Fix type "items" order.

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This commit is contained in:
vsrs 2020-06-10 22:56:49 +03:00
parent c50157f330
commit 283ec13fc0
2 changed files with 36 additions and 24 deletions
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25
crates/ra_hir/src/code_model.rs
View file

@ -27,7 +27,7 @@ use hir_ty::{
display::{HirDisplayError, HirFormatter},
expr::ExprValidator,
method_resolution, ApplicationTy, Canonical, GenericPredicate, InEnvironment, OpaqueTyId,
Substs, TraitEnvironment, Ty, TyDefId, TypeCtor, TypeWalk,
Substs, TraitEnvironment, Ty, TyDefId, TypeCtor,
};
use ra_db::{CrateId, CrateName, Edition, FileId};
use ra_prof::profile;
@ -1381,7 +1381,7 @@ impl Type {
}
}
/// Returns a flattened list of all the ADTs and Traits mentioned in the type
/// Returns a flattened list of all ADTs and Traits mentioned in the type
pub fn flattened_type_items(&self, db: &dyn HirDatabase) -> Vec<AdtOrTrait> {
fn push_new_item(item: AdtOrTrait, acc: &mut Vec<AdtOrTrait>) {
if !acc.contains(&item) {
@ -1398,7 +1398,7 @@ impl Type {
match p {
GenericPredicate::Implemented(trait_ref) => {
push_new_item(Trait::from(trait_ref.trait_).into(), acc);
walk_types(db, &trait_ref.substs, acc);
walk_substs(db, &trait_ref.substs, acc);
}
GenericPredicate::Projection(_) => {}
GenericPredicate::Error => (),
@ -1406,8 +1406,11 @@ impl Type {
}
}
fn walk_types<T: TypeWalk>(db: &dyn HirDatabase, tw: &T, acc: &mut Vec<AdtOrTrait>) {
tw.walk(&mut |ty| walk_type(db, ty, acc));
// TypeWalk::walk does not preserve items order!
fn walk_substs(db: &dyn HirDatabase, substs: &Substs, acc: &mut Vec<AdtOrTrait>) {
for ty in substs.iter() {
walk_type(db, ty, acc);
}
}
fn walk_type(db: &dyn HirDatabase, ty: &Ty, acc: &mut Vec<AdtOrTrait>) {
@ -1415,10 +1418,18 @@ impl Type {
Ty::Apply(ApplicationTy { ctor, parameters, .. }) => {
match ctor {
TypeCtor::Adt(adt_id) => push_new_item(Adt::from(*adt_id).into(), acc),
TypeCtor::AssociatedType(type_alias_id) => {
let trait_id = match type_alias_id.lookup(db.upcast()).container {
AssocContainerId::TraitId(it) => it,
_ => panic!("not an associated type"),
};
push_new_item(Trait::from(trait_id).into(), acc);
}
_ => (),
}
// adt params, tuples, etc...
walk_types(db, parameters, acc);
walk_substs(db, parameters, acc);
}
Ty::Dyn(predicates) => {
push_bounds(db, predicates, acc);
@ -1451,7 +1462,7 @@ impl Type {
}
};
push_bounds(db, &bounds.value, acc);
walk_types(db, &opaque_ty.parameters, acc);
walk_substs(db, &opaque_ty.parameters, acc);
}
_ => (),
}

35
crates/ra_ide/src/hover.rs
View file

@ -234,9 +234,10 @@ fn runnable_action(
fn goto_type_action(db: &RootDatabase, def: Definition) -> Option<HoverAction> {
match def {
Definition::Local(it) => {
let ty = it.ty(db);
let v = ty.flattened_type_items(db);
let targets = v.into_iter()
let targets = it
.ty(db)
.flattened_type_items(db)
.into_iter()
.map(|it| HoverGotoTypeData {
mod_path: adt_or_trait_mod_path(db, &it),
nav: it.to_nav(db),
@ -1980,7 +1981,7 @@ fn func(foo: i32) { if true { <|>foo; }; }
}
#[test]
fn test_hover_arg_goto_type_action() {
fn test_hover_goto_type_action_links_order() {
let (_, actions) = check_hover_result(
"
//- /lib.rs
@ -1988,10 +1989,10 @@ fn func(foo: i32) { if true { <|>foo; }; }
trait DynTrait<T> {}
struct B<T> {}
struct S {}
fn foo(a<|>rg: &impl ImplTrait<B<dyn DynTrait<S>>>) {}
fn foo(a<|>rg: &impl ImplTrait<B<dyn DynTrait<B<S>>>>) {}
",
&["&impl ImplTrait<B<dyn DynTrait<S>>>"],
&["&impl ImplTrait<B<dyn DynTrait<B<S>>>>"],
);
assert_debug_snapshot!(actions,
@r###"
@ -2018,20 +2019,20 @@ fn func(foo: i32) { if true { <|>foo; }; }
},
},
HoverGotoTypeData {
mod_path: "S",
mod_path: "B",
nav: NavigationTarget {
file_id: FileId(
1,
),
full_range: 58..69,
name: "S",
full_range: 43..57,
name: "B",
kind: STRUCT_DEF,
focus_range: Some(
65..66,
50..51,
),
container_name: None,
description: Some(
"struct S",
"struct B",
),
docs: None,
},
@ -2056,20 +2057,20 @@ fn func(foo: i32) { if true { <|>foo; }; }
},
},
HoverGotoTypeData {
mod_path: "B",
mod_path: "S",
nav: NavigationTarget {
file_id: FileId(
1,
),
full_range: 43..57,
name: "B",
full_range: 58..69,
name: "S",
kind: STRUCT_DEF,
focus_range: Some(
50..51,
65..66,
),
container_name: None,
description: Some(
"struct B",
"struct S",
),
docs: None,
},