* Function declarations for things defined in this file.
 */

static Tcl_Obj **	InitEnsembleRewrite(Tcl_Interp *interp, int objc,
			    Tcl_Obj *const *objv, int toRewrite,
			    int rewriteLength, Tcl_Obj *const *rewriteObjs,
			    int *lengthPtr);
static int		InvokeProcedureMethod(ClientData clientData,
			    Tcl_Interp *interp, Tcl_ObjectContext context,
			    int objc, Tcl_Obj *const *objv);
static Tcl_NRPostProc	FinalizeForwardCall;
static Tcl_NRPostProc	FinalizePMCall;
static int		PushMethodCallFrame(Tcl_Interp *interp,
			    CallContext *contextPtr, ProcedureMethod *pmPtr,
			    int objc, Tcl_Obj *const *objv,
			    PMFrameData *fdPtr);
static void		DeleteProcedureMethodRecord(ProcedureMethod *pmPtr);
static void		DeleteProcedureMethod(ClientData clientData);
static int		CloneProcedureMethod(Tcl_Interp *interp,
			    ClientData clientData, ClientData *newClientData);
static void		MethodErrorHandler(Tcl_Interp *interp,
			    Tcl_Obj *procNameObj);
static void		ConstructorErrorHandler(Tcl_Interp *interp,
			    Tcl_Obj *procNameObj);
static void		DestructorErrorHandler(Tcl_Interp *interp,
			    Tcl_Obj *procNameObj);
static Tcl_Obj *	RenderDeclarerName(ClientData clientData);
static int		InvokeForwardMethod(ClientData clientData,
			    Tcl_Interp *interp, Tcl_ObjectContext context,
			    int objc, Tcl_Obj *const *objv);
static void		DeleteForwardMethod(ClientData clientData);
static int		CloneForwardMethod(Tcl_Interp *interp,
			    ClientData clientData, ClientData *newClientData);
static int		ProcedureMethodVarResolver(Tcl_Interp *interp,
			    const char *varName, Tcl_Namespace *contextNs,
			    int flags, Tcl_Var *varPtr);
static int		ProcedureMethodCompiledVarResolver(Tcl_Interp *interp,
			    const char *varName, int length,
			    Tcl_Namespace *contextNs,
			    Tcl_ResolvedVarInfo **rPtrPtr);

				 * up to caller to manage storage (e.g., when
				 * it is a constructor or destructor). */
    int flags,			/* Whether this is a public method. */
    const Tcl_MethodType *typePtr,
				/* The type of method this is, which defines
				 * how to invoke, delete and clone the
				 * method. */
    ClientData clientData)	/* Some data associated with the particular
				 * method to be created. */
{
    register Object *oPtr = (Object *) object;
    register Method *mPtr;
    Tcl_HashEntry *hPtr;
    int isNew;

				 * for constructors or destructors); if so, up
				 * to caller to manage storage. */
    int flags,			/* Whether this is a public method. */
    const Tcl_MethodType *typePtr,
				/* The type of method this is, which defines
				 * how to invoke, delete and clone the
				 * method. */
    ClientData clientData)	/* Some data associated with the particular
				 * method to be created. */
{
    register Class *clsPtr = (Class *) cls;
    register Method *mPtr;
    Tcl_HashEntry *hPtr;
    int isNew;

				 * NULL. */
    Tcl_Obj *argsObj,		/* The formal argument list for the method,
				 * which _must not_ be NULL. */
    Tcl_Obj *bodyObj,		/* The body of the method, which _must not_ be
				 * NULL. */
    const Tcl_MethodType *typePtr,
				/* The type of the method to create. */
    ClientData clientData,	/* The per-method type-specific data. */
    Proc **procPtrPtr)		/* A pointer to the variable in which to write
				 * the procedure record reference. Presumably
				 * inside the structure indicated by the
				 * pointer in clientData. */
{
    Interp *iPtr = (Interp *) interp;
    Proc *procPtr;

				 * _must not_ be NULL. */
    Tcl_Obj *argsObj,		/* The formal argument list for the method,
				 * which _must not_ be NULL. */
    Tcl_Obj *bodyObj,		/* The body of the method, which _must not_ be
				 * NULL. */
    const Tcl_MethodType *typePtr,
				/* The type of the method to create. */
    ClientData clientData,	/* The per-method type-specific data. */
    Proc **procPtrPtr)		/* A pointer to the variable in which to write
				 * the procedure record reference. Presumably
				 * inside the structure indicated by the
				 * pointer in clientData. */
{
    Interp *iPtr = (Interp *) interp;
    Proc *procPtr;

 *	How to invoke a procedure-like method.
 *
 * ----------------------------------------------------------------------
 */

static int
InvokeProcedureMethod(
    ClientData clientData,	/* Pointer to some per-method context. */
    Tcl_Interp *interp,
    Tcl_ObjectContext context,	/* The method calling context. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const *objv)	/* Arguments as actually seen. */
{
    ProcedureMethod *pmPtr = clientData;
    int result;

    TclNRAddCallback(interp, FinalizePMCall, pmPtr, context, fdPtr, NULL);
    return TclNRInterpProcCore(interp, fdPtr->nameObj,
	    Tcl_ObjectContextSkippedArgs(context), fdPtr->errProc);
}

static int
FinalizePMCall(
    ClientData data[],
    Tcl_Interp *interp,
    int result)
{
    ProcedureMethod *pmPtr = data[0];
    Tcl_ObjectContext context = data[1];
    PMFrameData *fdPtr = data[2];

 *	itself) isn't done until it is needed.
 *
 * ----------------------------------------------------------------------
 */

static Tcl_Obj *
RenderDeclarerName(
    ClientData clientData)
{
    struct PNI *pni = clientData;
    Tcl_Object object = Tcl_MethodDeclarerObject(pni->method);

    if (object == NULL) {
	object = Tcl_GetClassAsObject(Tcl_MethodDeclarerClass(pni->method));
    }

	pmPtr->deleteClientdataProc(pmPtr->clientData);
    }
    ckfree(pmPtr);
}

static void
DeleteProcedureMethod(
    ClientData clientData)
{
    register ProcedureMethod *pmPtr = clientData;

    if (pmPtr->refCount-- <= 1) {
	DeleteProcedureMethodRecord(pmPtr);
    }
}

static int
CloneProcedureMethod(
    Tcl_Interp *interp,
    ClientData clientData,
    ClientData *newClientData)
{
    ProcedureMethod *pmPtr = clientData;
    ProcedureMethod *pm2Ptr;
    Tcl_Obj *bodyObj, *argsObj;
    CompiledLocal *localPtr;

    /*

 *	command rearranging and then invokes some other Tcl command.
 *
 * ----------------------------------------------------------------------
 */

static int
InvokeForwardMethod(
    ClientData clientData,	/* Pointer to some per-method context. */
    Tcl_Interp *interp,
    Tcl_ObjectContext context,	/* The method calling context. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const *objv)	/* Arguments as actually seen. */
{
    CallContext *contextPtr = (CallContext *) context;
    ForwardMethod *fmPtr = clientData;

    ((Interp *)interp)->lookupNsPtr
	    = (Namespace *) contextPtr->oPtr->namespacePtr;
    return TclNREvalObjv(interp, len, argObjs, TCL_EVAL_NOERR, NULL);
}

static int
FinalizeForwardCall(
    ClientData data[],
    Tcl_Interp *interp,
    int result)
{
    Tcl_Obj **argObjs = data[0];

    TclStackFree(interp, argObjs);
    return result;

 *	How to delete and clone forwarded methods.
 *
 * ----------------------------------------------------------------------
 */

static void
DeleteForwardMethod(
    ClientData clientData)
{
    ForwardMethod *fmPtr = clientData;

    Tcl_DecrRefCount(fmPtr->prefixObj);
    ckfree(fmPtr);
}

static int
CloneForwardMethod(
    Tcl_Interp *interp,
    ClientData clientData,
    ClientData *newClientData)
{
    ForwardMethod *fmPtr = clientData;
    ForwardMethod *fm2Ptr = ckalloc(sizeof(ForwardMethod));

    fm2Ptr->prefixObj = fmPtr->prefixObj;
    Tcl_IncrRefCount(fm2Ptr->prefixObj);
    *newClientData = fm2Ptr;

    return ((Method *) method)->namePtr;
}

int
Tcl_MethodIsType(
    Tcl_Method method,
    const Tcl_MethodType *typePtr,
    ClientData *clientDataPtr)
{
    Method *mPtr = (Method *) method;

    if (mPtr->typePtr == typePtr) {
	if (clientDataPtr != NULL) {
	    *clientDataPtr = mPtr->clientData;
	}

Tcl_Method
TclOONewProcInstanceMethodEx(
    Tcl_Interp *interp,		/* The interpreter containing the object. */
    Tcl_Object oPtr,		/* The object to modify. */
    TclOO_PreCallProc *preCallPtr,
    TclOO_PostCallProc *postCallPtr,
    ProcErrorProc *errProc,
    ClientData clientData,
    Tcl_Obj *nameObj,		/* The name of the method, which must not be
				 * NULL. */
    Tcl_Obj *argsObj,		/* The formal argument list for the method,
				 * which must not be NULL. */
    Tcl_Obj *bodyObj,		/* The body of the method, which must not be
				 * NULL. */
    int flags,			/* Whether this is a public method. */

Tcl_Method
TclOONewProcMethodEx(
    Tcl_Interp *interp,		/* The interpreter containing the class. */
    Tcl_Class clsPtr,		/* The class to modify. */
    TclOO_PreCallProc *preCallPtr,
    TclOO_PostCallProc *postCallPtr,
    ProcErrorProc *errProc,
    ClientData clientData,
    Tcl_Obj *nameObj,		/* The name of the method, which may be NULL;
				 * if so, up to caller to manage storage
				 * (e.g., because it is a constructor or
				 * destructor). */
    Tcl_Obj *argsObj,		/* The formal argument list for the method,
				 * which may be NULL; if so, it is equivalent
				 * to an empty list. */