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Add Type::walk method

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This commit is contained in:
vsrs 2020-06-11 20:17:32 +03:00
parent 7ec0064409
commit 4b07c1e775
3 changed files with 136 additions and 79 deletions
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25
crates/ra_ide/src/hover.rs
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@ -236,9 +236,26 @@ fn runnable_action(
fn goto_type_action(db: &RootDatabase, def: Definition) -> Option<HoverAction> {
match def {
Definition::Local(it) => {
let targets = it
.ty(db)
.flattened_type_items(db)
let mut targets: Vec<ModuleDef> = Vec::new();
let mut push_new_def = |item: ModuleDef| {
if !targets.contains(&item) {
targets.push(item);
}
};
it.ty(db).walk(db, |t| {
if let Some(adt) = t.as_adt() {
push_new_def(adt.into());
} else if let Some(trait_) = t.as_dyn_trait() {
push_new_def(trait_.into());
} else if let Some(trait_) = t.as_impl_trait(db) {
push_new_def(trait_.into());
} else if let Some(trait_) = t.as_associated_type_parent_trait(db) {
push_new_def(trait_.into());
}
});
let targets = targets
.into_iter()
.filter_map(|it| {
Some(HoverGotoTypeData {
@ -246,7 +263,7 @@ fn goto_type_action(db: &RootDatabase, def: Definition) -> Option<HoverAction> {
nav: it.try_to_nav(db)?,
})
})
.collect_vec();
.collect();
Some(HoverAction::GoToType(targets))
}