1 files changed, 7 insertions, 2 deletions

diff --git a/crates/ra_analysis/src/syntax_ptr.rs b/crates/ra_analysis/src/syntax_ptr.rs
index adbff4806..c3c904633 100644
--- a/crates/ra_analysis/src/syntax_ptr.rs
+++ b/crates/ra_analysis/src/syntax_ptr.rs
@@ -12,6 +12,7 @@ salsa::query_group! {
     pub(crate) trait SyntaxPtrDatabase: SyntaxDatabase {
         fn resolve_syntax_ptr(ptr: SyntaxPtr) -> SyntaxNode {
             type ResolveSyntaxPtrQuery;
+            // Don't retain syntax trees in memory
             storage volatile;
         }
     }
@@ -23,7 +24,7 @@ fn resolve_syntax_ptr(db: &impl SyntaxDatabase, ptr: SyntaxPtr) -> SyntaxNode {
 }
 
 /// SyntaxPtr is a cheap `Copy` id which identifies a particular syntax node,
-/// without retainig syntax tree in memory. You need to explicitelly `resovle`
+/// without retaining syntax tree in memory. You need to explicitly `resolve`
 /// `SyntaxPtr` to get a `SyntaxNode`
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub(crate) struct SyntaxPtr {
@@ -80,9 +81,13 @@ impl LocalSyntaxPtr {
             }
             curr = curr.children()
                 .find(|it| self.range.is_subrange(&it.range()))
-                .unwrap_or_else(|| panic!("can't resovle local ptr to SyntaxNode: {:?}", self))
+                .unwrap_or_else(|| panic!("can't resolve local ptr to SyntaxNode: {:?}", self))
         }
     }
+
+    pub(crate) fn into_global(self, file_id: FileId) -> SyntaxPtr {
+        SyntaxPtr { file_id, local: self}
+    }
 }