1 files changed, 33 insertions, 1 deletions
diff --git a/js/src/jspubtd.h b/js/src/jspubtd.h
index c3c5d38bd6..64f2329c69 100644
--- a/js/src/jspubtd.h
+++ b/js/src/jspubtd.h
@@ -11,6 +11,8 @@
  * JS public API typedefs.
  */
 
+#include "mozilla/Assertions.h"  // MOZ_ASSERT_UNREACHABLE
+
 #include "jstypes.h"
 
 #include "js/ProtoKey.h"
@@ -39,7 +41,7 @@ enum JSType {
   JSTYPE_NUMBER,    /* number */
   JSTYPE_BOOLEAN,   /* boolean */
   JSTYPE_SYMBOL,    /* symbol */
-  JSTYPE_BIGINT,    /* BigInt */
+  JSTYPE_BIGINT,    /* bigint */
 #ifdef ENABLE_RECORD_TUPLE
   JSTYPE_RECORD, /* record */
   JSTYPE_TUPLE,  /* tuple */
@@ -47,6 +49,36 @@ enum JSType {
   JSTYPE_LIMIT
 };
 
+inline const char* JSTypeToString(JSType type) {
+  switch (type) {
+    case JSTYPE_UNDEFINED:
+      return "undefined";
+    case JSTYPE_OBJECT:
+      return "object";
+    case JSTYPE_FUNCTION:
+      return "function";
+    case JSTYPE_STRING:
+      return "string";
+    case JSTYPE_NUMBER:
+      return "number";
+    case JSTYPE_BOOLEAN:
+      return "boolean";
+    case JSTYPE_SYMBOL:
+      return "symbol";
+    case JSTYPE_BIGINT:
+      return "bigint";
+#ifdef ENABLE_RECORD_TUPLE
+    case JSTYPE_RECORD:
+      return "record";
+    case JSTYPE_TUPLE:
+      return "tuple";
+#endif
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unknown JSType");
+  }
+  return "";
+}
+
 /* Dense index into cached prototypes and class atoms for standard objects. */
 enum JSProtoKey {
 #define PROTOKEY_AND_INITIALIZER(name, clasp) JSProto_##name,