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-rw-r--r--src/librustc_errors/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustc_errors/lib.rs b/src/librustc_errors/lib.rs
index 8d5e9e776ed..545a485732e 100644
--- a/src/librustc_errors/lib.rs
+++ b/src/librustc_errors/lib.rs
@@ -103,6 +103,7 @@ pub trait CodeMapper {
     fn span_to_filename(&self, sp: Span) -> FileName;
     fn merge_spans(&self, sp_lhs: Span, sp_rhs: Span) -> Option<Span>;
     fn call_span_if_macro(&self, sp: Span) -> Span;
+    fn load_source_for_filemap(&mut self, file: FileName) -> bool;
 }
 
 impl CodeSuggestion {