Tcl Source Code

	if (subclassPtr != NULL && !IsRoot(subclassPtr)) {
	    AddRef(subclassPtr);
	    AddRef(subclassPtr->thisPtr);
	}
    }
    if (!IsRootClass(oPtr)) {
	FOREACH(instancePtr, clsPtr->instances) {
	    if (instancePtr != oPtr) {
		int j;
		if (instancePtr->selfCls == clsPtr) {
		    instancePtr->flags |= CLASS_GONE;
		}
		for(j=0 ; j<instancePtr->mixins.num ; j++) {
		    Class *mixin = instancePtr->mixins.list[j];
		    Class *nextMixin = NULL;
		    if (mixin == clsPtr) {
			if (j < instancePtr->mixins.num - 1) {
			    nextMixin = instancePtr->mixins.list[j+1];
			}
			if (j == 0) {
			    instancePtr->mixins.num = 0;
			    instancePtr->mixins.list = NULL;
			} else {
			    instancePtr->mixins.list[j-1] = nextMixin;
			}
			instancePtr->mixins.num -= 1;
		    }
		}
		if (instancePtr != NULL && !IsRoot(instancePtr)) {
		    AddRef(instancePtr);
		}
	    }
	}
    }

    /*
     * Squelch classes that this class has been mixed into.
     */

    FOREACH(mixinSubclassPtr, clsPtr->mixinSubs) {
	if (mixinSubclassPtr != clsPtr) {
	    if (!Deleted(mixinSubclassPtr->thisPtr)) {
		Tcl_DeleteCommandFromToken(interp,
			mixinSubclassPtr->thisPtr->command);
	    }
	    ClearMixins(mixinSubclassPtr);
	    DelRef(mixinSubclassPtr->thisPtr);
	    DelRef(mixinSubclassPtr);
	}
    }
    if (clsPtr->mixinSubs.list != NULL) {
	ckfree(clsPtr->mixinSubs.list);
	clsPtr->mixinSubs.list = NULL;
	clsPtr->mixinSubs.num = 0;
    }

    /*
     * Squelch instances of this class (includes objects we're mixed into).
     */

    if (!IsRootClass(oPtr)) {
	FOREACH(instancePtr, clsPtr->instances) {
	    if (instancePtr != oPtr) {
		if (instancePtr == NULL || IsRoot(instancePtr)) {
		    continue;
		}
		if (!Deleted(instancePtr)) {
		    Tcl_DeleteCommandFromToken(interp, instancePtr->command);
		    /*
		     * Tcl_DeleteCommandFromToken() may have done to whole
		     * job for us.  Roll back and check again.
		     */
		    i--;
		    continue;
		}
		DelRef(instancePtr);
	    }
	}
    }
    if (clsPtr->instances.list != NULL) {
	ckfree(clsPtr->instances.list);
	clsPtr->instances.list = NULL;
	clsPtr->instances.num = 0;
    }

    FOREACH(variableObj, clsPtr->variables) {
	TclDecrRefCount(variableObj);
    }
    if (i) {
	ckfree(clsPtr->variables.list);
    }

    /* Tell oPtr that it's class is gone so that it doesn't try to remove
     * itself from it's classe's list of instances 
     */ 
    oPtr->flags |= CLASS_GONE;
    DelRef(clsPtr);

}

/*
 * ----------------------------------------------------------------------
 *

    }
    oPtr->command = NULL;

    if (oPtr->myCommand) {
	Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->myCommand);
    }

















    /*
     * Splice the object out of its context. After this, we must *not* call
     * methods on the object.
     */

    if (!IsRootObject(oPtr) && !(oPtr->flags & CLASS_GONE)) {
	TclOORemoveFromInstances(oPtr, oPtr->selfCls);
    }

    FOREACH(mixinPtr, oPtr->mixins) {
	if (mixinPtr && mixinPtr != oPtr->classPtr) {
	    TclOORemoveFromInstances(oPtr, mixinPtr);
	}
    }
    if (i) {
	ckfree(oPtr->mixins.list);
    }

	FOREACH_HASH(metadataTypePtr, value, oPtr->metadataPtr) {
	    metadataTypePtr->deleteProc(value);
	}
	Tcl_DeleteHashTable(oPtr->metadataPtr);
	ckfree(oPtr->metadataPtr);
	oPtr->metadataPtr = NULL;
    }

    /*
     *  Because an object can be a class that is an instance of itself, the
     *  A class object's class structure should only be cleaned after most of
     *  the cleanup on the object is done. 
     */


    /*
     * The class of objects needs some special care; if it is deleted (and
     * we're not killing the whole interpreter) we force the delete of the
     * class of classes now as well. Due to the incestuous nature of those two
     * classes, if one goes the other must too and yet the tangle can
     * sometimes not go away automatically; we force it here. [Bug 2962664]
     */
    if (!Tcl_InterpDeleted(interp) && IsRootObject(oPtr)
	    && !Deleted(fPtr->classCls->thisPtr)) {
	Tcl_DeleteCommandFromToken(interp, fPtr->classCls->thisPtr->command);
    }

    if (oPtr->classPtr != NULL) {
	ReleaseClassContents(interp, oPtr);
    }


    /*
     * Delete the object structure itself.
     */

    oPtr->classPtr = NULL;
    oPtr->namespacePtr = NULL;

    # No segmentation fault
    return done
} done

test oo-11.6 {
    OO: cleanup ReleaseClassContents() where class is mixed into one of its
    instances
} -body {
    oo::class create obj1
    ::oo::define obj1 {self mixin [self]}

    ::oo::copy obj1 obj2
    ::oo::objdefine obj2 {mixin [self]}

    ::oo::copy obj2 obj3
    rename obj3 {}
    rename obj2 {}

    # No segmentation fault
    return done
} -cleanup {
    rename obj1 {}
} -result done

test oo-12.1 {OO: filters} {
    oo::class create Aclass
    Aclass create Aobject
    oo::define Aclass {
	method concatenate args {
	    global result

	method e {} {}
    }
    E create e1
    list [lsort [info class methods E -all]] [lsort [info object methods e1 -all]]
} -cleanup {
    base destroy
} -result {{c d e} {c d e}}
test oo-35.6 {
    Bug : teardown of an object that is a class that is an instance of itself
} -setup {
    oo::class create obj

    oo::copy obj obj1 obj1
    oo::objdefine obj1 {
	mixin obj1 obj
    }
    oo::copy obj1 obj2
    oo::objdefine obj2 {
	mixin obj2 obj1
    }
} -body {
    rename obj2 {}
    rename obj1 {}
    # doesn't crash
    return done
} -cleanup {
    rename obj {}
} -result done 




test oo-36.1 {TIP #470: introspection within oo::define} {
    oo::define oo::object self
} ::oo::object
test oo-36.2 {TIP #470: introspection within oo::define} -setup {
    oo::class create Cls
} -body {
    oo::define Cls self