Fixing declaration without variable

spf.py

@@ -22,7 +22,7 @@ class SPFInterpreter(lark.visitors.Interpreter):
     def declaration(self, el):
         type = el.children[0].value
         name = el.children[1].value
-        value = self.visit_children(el.children[3])[0] if el.children[2].value == "=" else None
+        value = self.visit_children(el.children[3])[0] if len(el.children) >= 3 else None
         self.variables.declare(type, name, value)
 
     def assignation(self, el):
@@ -70,7 +70,7 @@ def main():
     interpreted = interpreter.visit(parsed)
 
     if args.dump:
-        interpreted.dump()
+        interpreter.dump()
 
 
 if __name__ == "__main__":