diff --git a/renderdoc/api/replay/structured_data.h b/renderdoc/api/replay/structured_data.h
index ded1b926d..c1dfdc8d3 100644
--- a/renderdoc/api/replay/structured_data.h
+++ b/renderdoc/api/replay/structured_data.h
@@ -399,34 +399,34 @@ struct SDObject
 #if !defined(SWIG)
   // templated enum cast
   template <typename EnumType>
-  EnumType AsEnum()
+  EnumType AsEnum() const
   {
     return (EnumType)data.basic.u;
   }
-  inline double AsDouble() { return data.basic.d; }
-  inline float AsFloat() { return (float)data.basic.d; }
-  inline float AsChar() { return (float)data.basic.c; }
-  inline std::string AsString() { return data.str; }
-  inline uint64_t AsUInt64() { return (uint64_t)data.basic.u; }
-  inline int64_t AsInt64() { return (int64_t)data.basic.i; }
-  inline uint32_t AsUInt32() { return (uint32_t)data.basic.u; }
-  inline int32_t AsInt32() { return (int32_t)data.basic.i; }
-  inline uint16_t AsUInt16() { return (uint16_t)data.basic.u; }
-  inline int16_t AsInt16() { return (int16_t)data.basic.i; }
-  inline uint8_t AsUInt8() { return (uint8_t)data.basic.u; }
-  inline int8_t AsInt8() { return (int8_t)data.basic.i; }
+  inline double AsDouble() const { return data.basic.d; }
+  inline float AsFloat() const { return (float)data.basic.d; }
+  inline float AsChar() const { return (float)data.basic.c; }
+  inline std::string AsString() const { return data.str; }
+  inline uint64_t AsUInt64() const { return (uint64_t)data.basic.u; }
+  inline int64_t AsInt64() const { return (int64_t)data.basic.i; }
+  inline uint32_t AsUInt32() const { return (uint32_t)data.basic.u; }
+  inline int32_t AsInt32() const { return (int32_t)data.basic.i; }
+  inline uint16_t AsUInt16() const { return (uint16_t)data.basic.u; }
+  inline int16_t AsInt16() const { return (int16_t)data.basic.i; }
+  inline uint8_t AsUInt8() const { return (uint8_t)data.basic.u; }
+  inline int8_t AsInt8() const { return (int8_t)data.basic.i; }
 #endif
 
   // these are common to both python and C++
   DOCUMENT(R"(Interprets the object as a ``bool`` and returns its value.
 Invalid if the object is not actually a ``bool``.
 )");
-  inline bool AsBool() { return data.basic.b; }
+  inline bool AsBool() const { return data.basic.b; }
   // these are common to both python and C++
   DOCUMENT(R"(Interprets the object as a :class:`ResourceId` and returns its value.
 Invalid if the object is not actually a :class:`ResourceId`.
 )");
-  inline ResourceId AsResourceId() { return data.basic.id; }
+  inline ResourceId AsResourceId() const { return data.basic.id; }
 #if defined(RENDERDOC_QT_COMPAT)
   operator QVariant() const
   {