Added error handling imports

Author: andrewmoreno-apryse

PDFTronGo/pdftron.i

@@ -214,6 +214,18 @@
     #undef SetPort
 %}
 
+// ==============
+// ERROR HANDLING
+// ==============
+// Converts C++ exceptions to Go errors using panic/recovery mechanism.
+// All functions now return an error in addition to their return type instead of panicking on exceptions.
+
+// Ensure necessary imports for error handling code
+%insert(go_imports) %{
+import "errors"
+import "fmt"
+%}
+
 %include "exception.i"
 %exception {
     try {
@@ -234,6 +246,10 @@
     $result = nil
 %}
 
+// ==================
+// END ERROR HANDLING
+// ==================
+
 /**
  * Provides mapping for C++ vectors.
  * For example, vector<double> will be called as VectorDouble in GoLang.