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Diffstat (limited to 'crates/hir-expand/src/span.rs')
-rw-r--r--crates/hir-expand/src/span.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/crates/hir-expand/src/span.rs b/crates/hir-expand/src/span.rs
index c2399259fa..1703923d11 100644
--- a/crates/hir-expand/src/span.rs
+++ b/crates/hir-expand/src/span.rs
@@ -1,3 +1,5 @@
+//! Spanmaps allow turning absolute ranges into relative ranges for incrementality purposes as well
+//! as associating spans with text ranges in a particular file.
use base_db::{
span::{ErasedFileAstId, SpanAnchor, SpanData, SyntaxContextId, ROOT_ERASED_FILE_AST_ID},
FileId,