Allow longer spans in the short format.

rust-lang · Apr 18, 2021 · 706c767 · 706c767
1 parent 080d302
commit 706c767
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/compiler/rustc_span/src/span_encoding.rs b/compiler/rustc_span/src/span_encoding.rs
@@ -62,8 +62,8 @@ pub struct Span {
     ctxt_or_zero: u16,
 }
 
-const LEN_TAG: u16 = 0b1000_0000_0000_0000;
-const MAX_LEN: u32 = 0b0111_1111_1111_1111;
+const LEN_TAG: u16 = 0b1111_1111_1111_1111;
+const MAX_LEN: u32 = (LEN_TAG as u32) - 1;
 const MAX_CTXT: u32 = 0b1111_1111_1111_1111;
 
 /// Dummy span, both position and length are zero, syntax context is zero as well.