/* Is this a capture that refers to the args area of an existing frame, or

 * a saved copy of a frame's args area? */

#define MVM_CALL_CAPTURE_MODE_USE   1

#define MVM_CALL_CAPTURE_MODE_SAVE  2

/* Representation for a context in the VM. Holds an MVMFrame. */

struct MVMCallCaptureBody {

    /* Argument processing context. For use mode, it points to the context of

     * the frame in question. For save mode, we allocate a fresh one. */

    MVMArgProcContext *apc;

    /* The frame the ArgProcContext lives in, if we're in use mode. This

     * ensures the frame stays alive long enough. */

    MVMFrame *use_mode_frame;

    /* The effective MVMCallsite. This may be the original one, but in the

     * event of flattening will describe the flattened outcome. */

    MVMCallsite *effective_callsite;

    /* Use or save mode? */

    MVMuint8 mode;

    MVMuint8 owns_callsite;

};

struct MVMCallCapture {

    MVMObject common;

    MVMCallCaptureBody body;

};

/* Function for REPR setup. */

const MVMREPROps * MVMCallCapture_initialize(MVMThreadContext *tc);

MVMint64 MVM_capture_pos_primspec(MVMThreadContext *tc, MVMObject *capture, MVMint64 index);