Merge #6907

6907: Lifetime reference search  r=matklad a=Veykril

PR #6787 but rewritten to make use of the HIR now. This only applies to Lifetimes, not labels. Also Higher-Ranked Trait Bounds aren't supported yet, but I feel like this PR is big enough as is which is why I left them out after noticing I forgot about them.

Supporting renaming required slight changes in the renaming module as lifetime names aren't allowed for anything but lifetimes(and labels) and vice versa for normal names.

Co-authored-by: Lukas Wirth <[email protected]>

1 files changed, 19 insertions, 1 deletions

diff --git a/crates/ide/src/display/navigation_target.rs b/crates/ide/src/display/navigation_target.rs
index 234f80a3a..ce0f4214c 100644
--- a/crates/ide/src/display/navigation_target.rs
+++ b/crates/ide/src/display/navigation_target.rs
@@ -9,7 +9,7 @@ use ide_db::{defs::Definition, RootDatabase};
 use syntax::{
     ast::{self, NameOwner},
     match_ast, AstNode, SmolStr,
-    SyntaxKind::{self, IDENT_PAT, TYPE_PARAM},
+    SyntaxKind::{self, IDENT_PAT, LIFETIME_PARAM, TYPE_PARAM},
     TextRange,
 };
 
@@ -182,6 +182,7 @@ impl TryToNav for Definition {
             Definition::SelfType(it) => Some(it.to_nav(db)),
             Definition::Local(it) => Some(it.to_nav(db)),
             Definition::TypeParam(it) => Some(it.to_nav(db)),
+            Definition::LifetimeParam(it) => Some(it.to_nav(db)),
         }
     }
 }
@@ -376,6 +377,23 @@ impl ToNav for hir::TypeParam {
     }
 }
 
+impl ToNav for hir::LifetimeParam {
+    fn to_nav(&self, db: &RootDatabase) -> NavigationTarget {
+        let src = self.source(db);
+        let full_range = src.value.syntax().text_range();
+        NavigationTarget {
+            file_id: src.file_id.original_file(db),
+            name: self.name(db).to_string().into(),
+            kind: LIFETIME_PARAM,
+            full_range,
+            focus_range: Some(full_range),
+            container_name: None,
+            description: None,
+            docs: None,
+        }
+    }
+}
+
 pub(crate) fn docs_from_symbol(db: &RootDatabase, symbol: &FileSymbol) -> Option<Documentation> {
     let parse = db.parse(symbol.file_id);
     let node = symbol.ptr.to_node(parse.tree().syntax());