fpdfsdk/ differences with XFA (for didactic purposes only).

fpdfsdk/src/javascript/JS_Runtime_Stub.cpp

Index: fpdfsdk/src/javascript/JS_Runtime_Stub.cpp
diff --git a/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp b/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp
index f7b1124a6e6d2b0707893631807a0c86e7582c35..b53806619054a6913e14db4dbe35aa2fb5aeb592 100644
--- a/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime_Stub.cpp
@@ -136,6 +136,18 @@ class CJS_RuntimeStub final : public IJS_Runtime {
   }
   CPDFSDK_Document* GetReaderDocument() override { return m_pDoc; }
 
+#ifdef PDF_ENABLE_XFA
+  virtual FX_BOOL GetHValueByName(const CFX_ByteStringC&,
+                                  FXJSE_HVALUE) override {
+    return FALSE;
+  }
+
+  virtual FX_BOOL SetHValueByName(const CFX_ByteStringC&,
+                                  FXJSE_HVALUE) override {
+    return FALSE;
+  }
+
+#endif
   int Execute(IJS_Context* cc,
               const wchar_t* script,
               CFX_WideString* info) override {