1 files changed, 4 insertions, 7 deletions
diff --git a/src/libsyntax_pos/span_encoding.rs b/src/libsyntax_pos/span_encoding.rs
index bf9a832519a..b55fe4bcb26 100644
--- a/src/libsyntax_pos/span_encoding.rs
+++ b/src/libsyntax_pos/span_encoding.rs
@@ -14,11 +14,11 @@
 // The encoding format for inline spans were obtained by optimizing over crates in rustc/libstd.
 // See https://internals.rust-lang.org/t/rfc-compiler-refactoring-spans/1357/28
 
+use GLOBALS;
 use {BytePos, SpanData};
 use hygiene::SyntaxContext;
 
 use rustc_data_structures::fx::FxHashMap;
-use std::cell::RefCell;
 use std::hash::{Hash, Hasher};
 
 /// A compressed span.
@@ -133,7 +133,7 @@ fn decode(span: Span) -> SpanData {
 }
 
 #[derive(Default)]
-struct SpanInterner {
+pub struct SpanInterner {
     spans: FxHashMap<SpanData, u32>,
     span_data: Vec<SpanData>,
 }
@@ -156,11 +156,8 @@ impl SpanInterner {
     }
 }
 
-// If an interner exists in TLS, return it. Otherwise, prepare a fresh one.
+// If an interner exists, return it. Otherwise, prepare a fresh one.
 #[inline]
 fn with_span_interner<T, F: FnOnce(&mut SpanInterner) -> T>(f: F) -> T {
-    thread_local!(static INTERNER: RefCell<SpanInterner> = {
-        RefCell::new(SpanInterner::default())
-    });
-    INTERNER.with(|interner| f(&mut *interner.borrow_mut()))
+    GLOBALS.with(|globals| f(&mut *globals.span_interner.lock()))
 }