1 files changed, 11 insertions, 5 deletions
diff --git a/Source/JavaScriptCore/runtime/ToNativeFromValue.h b/Source/JavaScriptCore/runtime/ToNativeFromValue.h
index 1d871a607..fd6184327 100644
--- a/Source/JavaScriptCore/runtime/ToNativeFromValue.h
+++ b/Source/JavaScriptCore/runtime/ToNativeFromValue.h
@@ -23,8 +23,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
-#ifndef ToNativeFromValue_h
-#define ToNativeFromValue_h
+#pragma once
 
 #include "JSCJSValue.h"
 
@@ -48,7 +47,14 @@ typename Adaptor::Type toNativeFromValue(ExecState* exec, JSValue value)
     return Adaptor::toNativeFromDouble(value.toNumber(exec));
 }
 
-} // namespace JSC
-
-#endif // ToNativeFromValue_h
+template<typename Adaptor>
+std::optional<typename Adaptor::Type> toNativeFromValueWithoutCoercion(JSValue value)
+{
+    if (!value.isNumber())
+        return std::nullopt;
+    if (value.isInt32())
+        return Adaptor::toNativeFromInt32WithoutCoercion(value.asInt32());
+    return Adaptor::toNativeFromDoubleWithoutCoercion(value.asDouble());
+}
 
+} // namespace JSC