/// <summary>
/// Evaluates the expression as an lvalue and determines if <seealso cref="#setValue(ELContext, Object)"/>
/// will always fail. </summary>
/// <param name="context"> used to resolve properties (<code>base.property</code> and <code>base[property]</code>)
/// and to determine the result from the last base/property pair </param>
/// <returns> <code>true</code> if <seealso cref="#setValue(ELContext, Object)"/> always fails. </returns>
/// <exception cref="ELException"> if evaluation fails (e.g. property not found, type conversion failed, ...) </exception>
public override bool IsReadOnly(ELContext context)
{
return(node.IsReadOnly(bindings, context));
}