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/*
* pkgooa.c --
*
* This file contains a simple Tcl package "pkgooa" that is intended for
* testing the Tcl dynamic loading facilities.
*
* Copyright © 1995 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#undef STATIC_BUILD
#include "tclOO.h"
#include <string.h>
/*
*----------------------------------------------------------------------
*
* Pkgooa_StubsOKObjCmd --
*
* This procedure is invoked to process the "pkgooa_stubsok" Tcl command.
* It gives 1 if stubs are used correctly, 0 if stubs are not OK.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* See the user documentation.
*
*----------------------------------------------------------------------
*/
static int
Pkgooa_StubsOKObjCmd(
void *dummy, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
(void)dummy;
if (objc != 1) {
Tcl_WrongNumArgs(interp, 1, objv, "");
return TCL_ERROR;
}
Tcl_SetObjResult(interp, Tcl_NewIntObj(
Tcl_CopyObjectInstance == tclOOStubsPtr->tcl_CopyObjectInstance));
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* Pkgooa_Init --
*
* This is a package initialization procedure, which is called by Tcl
* when this package is to be added to an interpreter.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
extern void *tclOOIntStubsPtr;
static TclOOStubs stubsCopy = {
TCL_STUB_MAGIC,
NULL,
/* It doesn't really matter what implementation of
* Tcl_CopyObjectInstance is put in the "pseudo"
* stub table, since the test-case never actually
* calls this function. All that matters is that it's
* a function with a different memory address than
* the real Tcl_CopyObjectInstance function in Tcl. */
(Tcl_Object (*) (Tcl_Interp *, Tcl_Object, const char *,
const char *t))(void *)Pkgooa_StubsOKObjCmd,
/* More entries could be here, but those are not used
* for this test-case. So, being NULL is OK. */
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL
};
DLLEXPORT int
Pkgooa_Init(
Tcl_Interp *interp) /* Interpreter in which the package is to be
* made available. */
{
int code;
/* Any TclOO extension which uses stubs, calls
* both Tcl_InitStubs and Tcl_OOInitStubs() and
* does not use any Tcl 8.6 features should be
* loadable in Tcl 8.5 as well, provided the
* TclOO extension (for Tcl 8.5) is installed.
* This worked in Tcl 8.6.0, and is expected
* to keep working in all future Tcl 8.x releases.
*/
if (Tcl_InitStubs(interp, "8.5-", 0) == NULL) {
return TCL_ERROR;
}
if (tclStubsPtr == NULL) {
Tcl_AppendResult(interp, "Tcl stubs are not initialized, "
"did you compile using -DUSE_TCL_STUBS? ", NULL);
return TCL_ERROR;
}
if (Tcl_OOInitStubs(interp) == NULL) {
return TCL_ERROR;
}
if (tclOOStubsPtr == NULL) {
Tcl_AppendResult(interp, "TclOO stubs are not initialized", NULL);
return TCL_ERROR;
}
if (tclOOIntStubsPtr == NULL) {
Tcl_AppendResult(interp, "TclOO internal stubs are not initialized", NULL);
return TCL_ERROR;
}
/* Test case for Bug [f51efe99a7].
*
* Let tclOOStubsPtr point to an alternate stub table
* (with only a single function, that's enough for
* this test). This way, the function "pkgooa_stubsok"
* can check whether the TclOO function calls really
* use the stub table, or only pretend to.
*
* On platforms without backlinking (Windows, Cygwin,
* AIX), this code doesn't even compile without using
* stubs, but on UNIX ELF systems, the problem is
* less visible.
*/
tclOOStubsPtr = &stubsCopy;
code = Tcl_PkgProvide(interp, "pkgooa", "1.0");
if (code != TCL_OK) {
return code;
}
Tcl_CreateObjCommand(interp, "pkgooa_stubsok", Pkgooa_StubsOKObjCmd, NULL, NULL);
return TCL_OK;
}
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