1 files changed, 5 insertions, 4 deletions
diff --git a/src/wasm-type.h b/src/wasm-type.h
index 7b3845aec..ddfb7c9a1 100644
--- a/src/wasm-type.h
+++ b/src/wasm-type.h
@@ -96,10 +96,6 @@ struct ResultType {
   std::string toString() const;
 };
 
-std::ostream& operator<<(std::ostream& os, Type t);
-std::ostream& operator<<(std::ostream& os, ParamType t);
-std::ostream& operator<<(std::ostream& os, ResultType t);
-
 struct Signature {
   Type params;
   Type results;
@@ -112,6 +108,11 @@ struct Signature {
   bool operator<(const Signature& other) const;
 };
 
+std::ostream& operator<<(std::ostream& os, Type t);
+std::ostream& operator<<(std::ostream& os, ParamType t);
+std::ostream& operator<<(std::ostream& os, ResultType t);
+std::ostream& operator<<(std::ostream& os, Signature t);
+
 constexpr Type none = Type::none;
 constexpr Type i32 = Type::i32;
 constexpr Type i64 = Type::i64;