Notable traits for type info hovers
This commit is contained in:
Lukas Wirth
parent
ffeaee84af
commit
0a75a8c061
@ -393,30 +393,7 @@ pub(crate) fn hover_for_definition(
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Definition::BuiltinType(it) => Some(it.ty(db)),
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_ => None,
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};
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let notable_traits = def_ty
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.map(|ty| {
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db.notable_traits_in_deps(ty.krate(db).into())
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.iter()
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.flat_map(|it| &**it)
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.filter_map(move |&trait_| {
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let trait_ = trait_.into();
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ty.impls_trait(db, trait_, &[]).then(|| {
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(
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trait_,
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trait_
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.items(db)
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.into_iter()
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.filter_map(hir::AssocItem::as_type_alias)
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.map(|alias| {
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(ty.normalize_trait_assoc_type(db, &[], alias), alias.name(db))
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})
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.collect::<Vec<_>>(),
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)
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})
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})
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.collect::<Vec<_>>()
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})
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.unwrap_or_default();
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let notable_traits = def_ty.map(|ty| notable_traits(db, &ty)).unwrap_or_default();
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render::definition(sema.db, def, famous_defs.as_ref(), ¬able_traits, config).map(|markup| {
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HoverResult {
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@ -434,6 +411,32 @@ pub(crate) fn hover_for_definition(
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})
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}
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fn notable_traits(
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db: &RootDatabase,
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ty: &hir::Type,
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) -> Vec<(hir::Trait, Vec<(Option<hir::Type>, hir::Name)>)> {
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db.notable_traits_in_deps(ty.krate(db).into())
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.iter()
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.flat_map(|it| &**it)
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.filter_map(move |&trait_| {
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let trait_ = trait_.into();
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ty.impls_trait(db, trait_, &[]).then(|| {
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(
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trait_,
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trait_
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.items(db)
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.into_iter()
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.filter_map(hir::AssocItem::as_type_alias)
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.map(|alias| {
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(ty.normalize_trait_assoc_type(db, &[], alias), alias.name(db))
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})
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.collect::<Vec<_>>(),
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)
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})
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})
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.collect::<Vec<_>>()
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}
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fn show_implementations_action(db: &RootDatabase, def: Definition) -> Option<HoverAction> {
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fn to_action(nav_target: NavigationTarget) -> HoverAction {
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HoverAction::Implementation(FilePosition {
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@ -583,7 +586,9 @@ fn dedupe_or_merge_hover_actions(actions: Vec<HoverAction>) -> Vec<HoverAction>
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}
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if !go_to_type_targets.is_empty() {
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deduped_actions.push(HoverAction::GoToType(go_to_type_targets.into_iter().collect()));
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deduped_actions.push(HoverAction::GoToType(
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go_to_type_targets.into_iter().sorted_by(|a, b| a.mod_path.cmp(&b.mod_path)).collect(),
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));
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}
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deduped_actions
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@ -3,8 +3,8 @@
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use either::Either;
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use hir::{
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Adt, AsAssocItem, CaptureKind, HasSource, HirDisplay, Layout, LayoutError, Name, Semantics,
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Trait, Type, TypeInfo,
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Adt, AsAssocItem, CaptureKind, HasCrate, HasSource, HirDisplay, Layout, LayoutError, Name,
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Semantics, Trait, Type, TypeInfo,
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};
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use ide_db::{
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base_db::SourceDatabase,
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@ -25,7 +25,7 @@
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use crate::{
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doc_links::{remove_links, rewrite_links},
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hover::walk_and_push_ty,
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hover::{notable_traits, walk_and_push_ty},
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HoverAction, HoverConfig, HoverResult, Markup, MemoryLayoutHoverConfig,
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MemoryLayoutHoverRenderKind,
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};
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@ -471,38 +471,8 @@ pub(super) fn definition(
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_ => None,
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};
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let notable_traits = {
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let mut desc = String::new();
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let mut needs_impl_header = true;
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for (trait_, assoc_types) in notable_traits {
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desc.push_str(if mem::take(&mut needs_impl_header) {
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" // notable traits implemented: "
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} else {
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", "
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});
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format_to!(desc, "{}", trait_.name(db).display(db),);
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if !assoc_types.is_empty() {
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desc.push('<');
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format_to!(
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desc,
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"{}",
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assoc_types.into_iter().format_with(", ", |(ty, name), f| {
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f(&name.display(db))?;
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f(&" = ")?;
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match ty {
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Some(ty) => f(&ty.display(db)),
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None => f(&"?"),
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}
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})
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);
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desc.push('>');
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}
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}
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desc.is_empty().not().then(|| desc)
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};
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let mut desc = String::new();
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if let Some(notable_traits) = notable_traits {
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if let Some(notable_traits) = render_notable_trait_comment(db, notable_traits) {
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desc.push_str(¬able_traits);
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desc.push('\n');
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}
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@ -519,6 +489,39 @@ pub(super) fn definition(
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markup(docs.map(Into::into), desc, mod_path)
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}
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fn render_notable_trait_comment(
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db: &RootDatabase,
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notable_traits: &[(Trait, Vec<(Option<Type>, Name)>)],
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) -> Option<String> {
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let mut desc = String::new();
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let mut needs_impl_header = true;
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for (trait_, assoc_types) in notable_traits {
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desc.push_str(if mem::take(&mut needs_impl_header) {
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" // notable traits implemented: "
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} else {
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", "
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});
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format_to!(desc, "{}", trait_.name(db).display(db),);
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if !assoc_types.is_empty() {
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desc.push('<');
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format_to!(
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desc,
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"{}",
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assoc_types.into_iter().format_with(", ", |(ty, name), f| {
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f(&name.display(db))?;
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f(&" = ")?;
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match ty {
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Some(ty) => f(&ty.display(db)),
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None => f(&"?"),
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}
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})
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);
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desc.push('>');
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}
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}
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desc.is_empty().not().then(|| desc)
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}
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fn type_info(
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sema: &Semantics<'_, RootDatabase>,
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config: &HoverConfig,
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@ -536,8 +539,12 @@ fn type_info(
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}
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};
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walk_and_push_ty(sema.db, &original, &mut push_new_def);
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res.markup = if let Some(adjusted_ty) = adjusted {
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let mut desc = match render_notable_trait_comment(sema.db, ¬able_traits(sema.db, &original))
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{
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Some(desc) => desc + "\n",
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None => String::new(),
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};
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desc += &if let Some(adjusted_ty) = adjusted {
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walk_and_push_ty(sema.db, &adjusted_ty, &mut push_new_def);
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let original = original.display(sema.db).to_string();
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let adjusted = adjusted_ty.display(sema.db).to_string();
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@ -549,10 +556,10 @@ fn type_info(
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apad = static_text_diff_len + adjusted.len().max(original.len()),
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opad = original.len(),
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)
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.into()
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} else {
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Markup::fenced_block(&original.display(sema.db))
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Markup::fenced_block(&original.display(sema.db)).into()
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};
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res.markup = desc.into();
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if let Some(actions) = HoverAction::goto_type_from_targets(sema.db, targets) {
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res.actions.push(actions);
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}
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@ -607,6 +614,9 @@ fn closure_ty(
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{
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format_to!(markup, "{layout}");
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}
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if let Some(trait_) = c.fn_trait(sema.db).get_id(sema.db, original.krate(sema.db).into()) {
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push_new_def(hir::Trait::from(trait_).into())
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}
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format_to!(
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markup,
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"\n{}\n```{adjusted}\n\n## Captures\n{}",
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@ -400,6 +400,20 @@ fn main() {
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description: "struct S",
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},
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},
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HoverGotoTypeData {
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mod_path: "core::ops::function::FnOnce",
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nav: NavigationTarget {
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file_id: FileId(
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1,
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),
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full_range: 631..866,
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focus_range: 692..698,
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name: "FnOnce",
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kind: Trait,
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container_name: "function",
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description: "pub trait FnOnce<Args>\nwhere\n Args: Tuple,",
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},
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},
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],
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),
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]
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@ -2387,39 +2401,39 @@ struct S<T>{ f1: T }
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fn main() { let s$0t = S{ f1:Arg(0) }; }
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"#,
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expect![[r#"
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[
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GoToType(
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[
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HoverGotoTypeData {
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mod_path: "test::S",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 17..37,
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focus_range: 24..25,
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name: "S",
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kind: Struct,
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description: "struct S<T> {\n f1: T,\n}",
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},
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[
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GoToType(
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[
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HoverGotoTypeData {
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mod_path: "test::Arg",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 0..16,
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focus_range: 7..10,
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name: "Arg",
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kind: Struct,
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description: "struct Arg(u32);",
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},
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HoverGotoTypeData {
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mod_path: "test::Arg",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 0..16,
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focus_range: 7..10,
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name: "Arg",
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kind: Struct,
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description: "struct Arg(u32);",
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},
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},
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HoverGotoTypeData {
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mod_path: "test::S",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 17..37,
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focus_range: 24..25,
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name: "S",
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kind: Struct,
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description: "struct S<T> {\n f1: T,\n}",
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},
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],
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),
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]
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"#]],
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},
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],
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),
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]
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"#]],
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);
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}
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@ -2446,39 +2460,39 @@ struct S<T>{ f1: T }
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fn main() { let s$0t = S{ f1: S{ f1: Arg(0) } }; }
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"#,
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expect![[r#"
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[
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GoToType(
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[
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HoverGotoTypeData {
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mod_path: "test::S",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 17..37,
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focus_range: 24..25,
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name: "S",
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kind: Struct,
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description: "struct S<T> {\n f1: T,\n}",
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},
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[
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GoToType(
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[
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HoverGotoTypeData {
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mod_path: "test::Arg",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 0..16,
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focus_range: 7..10,
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name: "Arg",
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kind: Struct,
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description: "struct Arg(u32);",
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},
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HoverGotoTypeData {
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mod_path: "test::Arg",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 0..16,
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focus_range: 7..10,
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name: "Arg",
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kind: Struct,
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description: "struct Arg(u32);",
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},
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},
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HoverGotoTypeData {
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mod_path: "test::S",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 17..37,
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focus_range: 24..25,
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name: "S",
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kind: Struct,
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description: "struct S<T> {\n f1: T,\n}",
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},
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],
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),
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]
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"#]],
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},
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],
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),
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]
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"#]],
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);
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}
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@ -2636,39 +2650,39 @@ fn foo() -> impl Foo + Bar {}
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fn main() { let s$0t = foo(); }
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"#,
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expect![[r#"
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[
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GoToType(
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[
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HoverGotoTypeData {
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mod_path: "test::Foo",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 0..12,
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focus_range: 6..9,
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name: "Foo",
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kind: Trait,
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description: "trait Foo",
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},
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[
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GoToType(
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[
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HoverGotoTypeData {
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mod_path: "test::Bar",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 13..25,
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focus_range: 19..22,
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name: "Bar",
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kind: Trait,
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description: "trait Bar",
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},
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HoverGotoTypeData {
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mod_path: "test::Bar",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 13..25,
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focus_range: 19..22,
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name: "Bar",
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kind: Trait,
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description: "trait Bar",
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},
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},
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HoverGotoTypeData {
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mod_path: "test::Foo",
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 0..12,
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focus_range: 6..9,
|
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name: "Foo",
|
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kind: Trait,
|
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description: "trait Foo",
|
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},
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],
|
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),
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]
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"#]],
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},
|
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],
|
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),
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]
|
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"#]],
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);
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}
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@ -2686,65 +2700,65 @@ fn foo() -> impl Foo<S1> + Bar<S2> {}
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fn main() { let s$0t = foo(); }
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"#,
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expect![[r#"
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[
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GoToType(
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[
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HoverGotoTypeData {
|
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mod_path: "test::Foo",
|
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 0..15,
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focus_range: 6..9,
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name: "Foo",
|
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kind: Trait,
|
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description: "trait Foo<T>",
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},
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[
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GoToType(
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[
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HoverGotoTypeData {
|
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mod_path: "test::Bar",
|
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nav: NavigationTarget {
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file_id: FileId(
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0,
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),
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full_range: 16..31,
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focus_range: 22..25,
|
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name: "Bar",
|
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kind: Trait,
|
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description: "trait Bar<T>",
|
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},
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HoverGotoTypeData {
|
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mod_path: "test::Bar",
|
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nav: NavigationTarget {
|
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file_id: FileId(
|
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0,
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),
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full_range: 16..31,
|
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focus_range: 22..25,
|
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name: "Bar",
|
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kind: Trait,
|
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description: "trait Bar<T>",
|
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},
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},
|
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HoverGotoTypeData {
|
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mod_path: "test::Foo",
|
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nav: NavigationTarget {
|
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file_id: FileId(
|
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0,
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),
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full_range: 0..15,
|
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focus_range: 6..9,
|
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name: "Foo",
|
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kind: Trait,
|
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description: "trait Foo<T>",
|
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},
|
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HoverGotoTypeData {
|
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mod_path: "test::S1",
|
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nav: NavigationTarget {
|
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file_id: FileId(
|
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0,
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),
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full_range: 32..44,
|
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focus_range: 39..41,
|
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name: "S1",
|
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kind: Struct,
|
||||
description: "struct S1 {}",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S1",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 32..44,
|
||||
focus_range: 39..41,
|
||||
name: "S1",
|
||||
kind: Struct,
|
||||
description: "struct S1 {}",
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S2",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 45..57,
|
||||
focus_range: 52..54,
|
||||
name: "S2",
|
||||
kind: Struct,
|
||||
description: "struct S2 {}",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S2",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 45..57,
|
||||
focus_range: 52..54,
|
||||
name: "S2",
|
||||
kind: Struct,
|
||||
description: "struct S2 {}",
|
||||
},
|
||||
],
|
||||
),
|
||||
]
|
||||
"#]],
|
||||
},
|
||||
],
|
||||
),
|
||||
]
|
||||
"#]],
|
||||
);
|
||||
}
|
||||
|
||||
@ -2790,52 +2804,52 @@ struct S{}
|
||||
fn foo(ar$0g: &impl Foo + Bar<S>) {}
|
||||
"#,
|
||||
expect![[r#"
|
||||
[
|
||||
GoToType(
|
||||
[
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::Foo",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 0..12,
|
||||
focus_range: 6..9,
|
||||
name: "Foo",
|
||||
kind: Trait,
|
||||
description: "trait Foo",
|
||||
},
|
||||
[
|
||||
GoToType(
|
||||
[
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::Bar",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 13..28,
|
||||
focus_range: 19..22,
|
||||
name: "Bar",
|
||||
kind: Trait,
|
||||
description: "trait Bar<T>",
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::Bar",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 13..28,
|
||||
focus_range: 19..22,
|
||||
name: "Bar",
|
||||
kind: Trait,
|
||||
description: "trait Bar<T>",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::Foo",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 0..12,
|
||||
focus_range: 6..9,
|
||||
name: "Foo",
|
||||
kind: Trait,
|
||||
description: "trait Foo",
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 29..39,
|
||||
focus_range: 36..37,
|
||||
name: "S",
|
||||
kind: Struct,
|
||||
description: "struct S {}",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 29..39,
|
||||
focus_range: 36..37,
|
||||
name: "S",
|
||||
kind: Struct,
|
||||
description: "struct S {}",
|
||||
},
|
||||
],
|
||||
),
|
||||
]
|
||||
"#]],
|
||||
},
|
||||
],
|
||||
),
|
||||
]
|
||||
"#]],
|
||||
);
|
||||
}
|
||||
|
||||
@ -3077,65 +3091,65 @@ struct S {}
|
||||
fn foo(a$0rg: &impl ImplTrait<B<dyn DynTrait<B<S>>>>) {}
|
||||
"#,
|
||||
expect![[r#"
|
||||
[
|
||||
GoToType(
|
||||
[
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::ImplTrait",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 0..21,
|
||||
focus_range: 6..15,
|
||||
name: "ImplTrait",
|
||||
kind: Trait,
|
||||
description: "trait ImplTrait<T>",
|
||||
},
|
||||
[
|
||||
GoToType(
|
||||
[
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::B",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 43..57,
|
||||
focus_range: 50..51,
|
||||
name: "B",
|
||||
kind: Struct,
|
||||
description: "struct B<T> {}",
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::B",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 43..57,
|
||||
focus_range: 50..51,
|
||||
name: "B",
|
||||
kind: Struct,
|
||||
description: "struct B<T> {}",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::DynTrait",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 22..42,
|
||||
focus_range: 28..36,
|
||||
name: "DynTrait",
|
||||
kind: Trait,
|
||||
description: "trait DynTrait<T>",
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::DynTrait",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 22..42,
|
||||
focus_range: 28..36,
|
||||
name: "DynTrait",
|
||||
kind: Trait,
|
||||
description: "trait DynTrait<T>",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::ImplTrait",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 0..21,
|
||||
focus_range: 6..15,
|
||||
name: "ImplTrait",
|
||||
kind: Trait,
|
||||
description: "trait ImplTrait<T>",
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 58..69,
|
||||
focus_range: 65..66,
|
||||
name: "S",
|
||||
kind: Struct,
|
||||
description: "struct S {}",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 58..69,
|
||||
focus_range: 65..66,
|
||||
name: "S",
|
||||
kind: Struct,
|
||||
description: "struct S {}",
|
||||
},
|
||||
],
|
||||
),
|
||||
]
|
||||
"#]],
|
||||
},
|
||||
],
|
||||
),
|
||||
]
|
||||
"#]],
|
||||
);
|
||||
}
|
||||
|
||||
@ -7120,6 +7134,33 @@ struct S
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn notable_ranged() {
|
||||
check_hover_range(
|
||||
r#"
|
||||
//- minicore: future, iterator
|
||||
struct S;
|
||||
#[doc(notable_trait)]
|
||||
trait Notable {}
|
||||
impl Notable for S {}
|
||||
impl core::future::Future for S {
|
||||
type Output = u32;
|
||||
}
|
||||
impl Iterator for S {
|
||||
type Item = S;
|
||||
}
|
||||
fn main() {
|
||||
$0S$0;
|
||||
}
|
||||
"#,
|
||||
expect![[r#"
|
||||
// notable traits implemented: Notable, Future<Output = u32>, Iterator<Item = S>
|
||||
```rust
|
||||
S
|
||||
```"#]],
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn notable_actions() {
|
||||
check_actions(
|
||||
@ -7149,19 +7190,6 @@ impl Iterator for S {
|
||||
),
|
||||
GoToType(
|
||||
[
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::Notable",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 21..59,
|
||||
focus_range: 49..56,
|
||||
name: "Notable",
|
||||
kind: Trait,
|
||||
description: "trait Notable",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "core::future::Future",
|
||||
nav: NavigationTarget {
|
||||
@ -7190,6 +7218,19 @@ impl Iterator for S {
|
||||
description: "pub trait Iterator",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::Notable",
|
||||
nav: NavigationTarget {
|
||||
file_id: FileId(
|
||||
0,
|
||||
),
|
||||
full_range: 21..59,
|
||||
focus_range: 49..56,
|
||||
name: "Notable",
|
||||
kind: Trait,
|
||||
description: "trait Notable",
|
||||
},
|
||||
},
|
||||
HoverGotoTypeData {
|
||||
mod_path: "test::S2",
|
||||
nav: NavigationTarget {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user