STATE    /* state */;       /**< Access to the VM state. */
    Array*      arguments;      /**< Arguments from the call. */
    Task*       task;           /**< Access to the Task the method call runs in. */
    size_t      argument_start; /**< NOT USED. Index where arguments would start. */

    /** SendSite in which this call originates. */
    SendSite*   send_site;
    /** Name of the method being called (comes from SendSite) */
    SYMBOL      name;
    /** Receiver in the call, i.e. obj in `obj.foo()` */
    OBJECT      recv;
    /** Block object or nil if no block. */
    OBJECT      block;