QStateMachine: remove left-over method.

This method was probably there in older versions of the specification,
but it is no longer used now. The only caller was in
QStateMachinePrivate::setError, which has been changed to use the newer
methods.

Change-Id: Ic4961990d8d2c902676e63193d3f30ef427e6f0c
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>

1 files changed, 5 insertions, 65 deletions

diff --git a/src/corelib/statemachine/qstatemachine.cpp b/src/corelib/statemachine/qstatemachine.cpp
index d1a98d96f5..335610dac6 100644
--- a/src/corelib/statemachine/qstatemachine.cpp
+++ b/src/corelib/statemachine/qstatemachine.cpp
@@ -1041,69 +1041,6 @@ void QStateMachinePrivate::enterStates(QEvent *event, const QList<QAbstractState
 //    qDebug() << "configuration:" << configuration.toList();
 }
 
-void QStateMachinePrivate::addStatesToEnter(QAbstractState *s, QState *root,
-                                            QSet<QAbstractState*> &statesToEnter,
-                                            QSet<QAbstractState*> &statesForDefaultEntry)
-{
-    if (QHistoryState *h = toHistoryState(s)) {
-        QList<QAbstractState*> hconf = QHistoryStatePrivate::get(h)->configuration;
-        if (!hconf.isEmpty()) {
-            for (int k = 0; k < hconf.size(); ++k) {
-                QAbstractState *s0 = hconf.at(k);
-                addStatesToEnter(s0, root, statesToEnter, statesForDefaultEntry);
-            }
-#ifdef QSTATEMACHINE_DEBUG
-            qDebug() << q_func() << ": restoring"
-                     << ((QHistoryStatePrivate::get(h)->historyType == QHistoryState::DeepHistory) ? "deep" : "shallow")
-                     << "history from" << s << ':' << hconf;
-#endif
-        } else {
-            QList<QAbstractState*> hlst;
-            if (QHistoryStatePrivate::get(h)->defaultState)
-                hlst.append(QHistoryStatePrivate::get(h)->defaultState);
-
-            if (hlst.isEmpty()) {
-                setError(QStateMachine::NoDefaultStateInHistoryStateError, h);
-            } else {
-                for (int k = 0; k < hlst.size(); ++k) {
-                    QAbstractState *s0 = hlst.at(k);
-                    addStatesToEnter(s0, root, statesToEnter, statesForDefaultEntry);
-                }
-#ifdef QSTATEMACHINE_DEBUG
-                qDebug() << q_func() << ": initial history targets for" << s << ':' << hlst;
-#endif
-           }
-        }
-    } else {
-        if (s == rootState()) {
-            // Error has already been set by exitStates().
-            Q_ASSERT(error != QStateMachine::NoError);
-            return;
-        }
-        statesToEnter.insert(s);
-        if (isParallel(s)) {
-            QState *grp = toStandardState(s);
-            QList<QAbstractState*> lst = QStatePrivate::get(grp)->childStates();
-            for (int i = 0; i < lst.size(); ++i) {
-                QAbstractState *child = lst.at(i);
-                addStatesToEnter(child, grp, statesToEnter, statesForDefaultEntry);
-            }
-        } else if (isCompound(s)) {
-            statesForDefaultEntry.insert(s);
-            QState *grp = toStandardState(s);
-            QAbstractState *initial = grp->initialState();
-            if (initial != 0) {
-                Q_ASSERT(initial->machine() == q_func());
-                addStatesToEnter(initial, grp, statesToEnter, statesForDefaultEntry);
-            } else {
-                setError(QStateMachine::NoInitialStateError, grp);
-                return;
-            }
-        }
-        addAncestorStatesToEnter(s, root, statesToEnter, statesForDefaultEntry);
-    }
-}
-
 /* The algorithm as described in http://www.w3.org/TR/2014/WD-scxml-20140529/ has a bug. See
  * QTBUG-44963 for details. The algorithm here is as described in
  * http://www.w3.org/Voice/2013/scxml-irp/SCXML.htm as of Friday March 13, 2015.
@@ -1545,8 +1482,11 @@ void QStateMachinePrivate::setError(QStateMachine::Error errorCode, QAbstractSta
 #ifdef QSTATEMACHINE_DEBUG
         qDebug() << q << ": entering error state" << currentErrorState << "from" << currentContext;
 #endif
-        QState *lca = findLCA(QList<QAbstractState*>() << currentErrorState << currentContext);
-        addStatesToEnter(currentErrorState, lca, pendingErrorStates, pendingErrorStatesForDefaultEntry);
+        pendingErrorStates.insert(currentErrorState);
+        addDescendantStatesToEnter(currentErrorState, pendingErrorStates, pendingErrorStatesForDefaultEntry);
+        addAncestorStatesToEnter(currentErrorState, rootState(), pendingErrorStates, pendingErrorStatesForDefaultEntry);
+        foreach (QAbstractState *s, configuration)
+            pendingErrorStates.remove(s);
     } else {
         qWarning("Unrecoverable error detected in running state machine: %s",
                  qPrintable(errorString));