753       mNextStepIndex(0),  in Controller()
763         mNextStepIndex = kBadStepIndex;  in Controller()
993     if (controller->mNextStepIndex == Controller::kBadStepIndex) {  in fallback()
998     controller->mNextStepIndex = controller->mFallbackNextStepIndex;  in fallback()
1103                     << "): mNextStepIndex = " << controller->mNextStepIndex;  in next()
1105     if (controller->mNextStepIndex == Controller::kBadStepIndex) {  in next()
1110         CHECK_EQ(controller->mNextStepIndex, 0u);  // end  in next()
1111         controller->mNextStepIndex = Controller::kBadStepIndex;  in next()
1116         if (controller->mNextStepIndex == 0) {  in next()
1127             controller->mNextStepIndex = 1;  in next()
1131         CHECK_EQ(controller->mNextStepIndex, 1u);  // end  in next()
1132         controller->mNextStepIndex = Controller::kBadStepIndex;  in next()
1142     if (controller->mNextStepIndex == Controller::kBadStepIndex) {  in nextCompound()
1147     if (controller->mNextStepIndex == compoundBody->mSteps.size()) {  in nextCompound()
1148         controller->mNextStepIndex = Controller::kBadStepIndex;  // end  in nextCompound()
1152     const auto& logicalStep = compoundBody->mSteps[controller->mNextStepIndex];  in nextCompound()
1170     VLOG(EXECUTION) << "next: Step#" << controller->mNextStepIndex << ": execute on "  in nextCompound()
1180         *burstController = controller->mBurstBuilder->getControllerAt(controller->mNextStepIndex);  in nextCompound()
1183     controller->mFallbackNextStepIndex = controller->mNextStepIndex;  in nextCompound()
1184     controller->mNextStepIndex++;  in nextCompound()
1269     controller->mNextStepIndex = condValue ? step->thenStepIndex : step->elseStepIndex;  in nextCompound()
1302     WhileState& state = controller->mWhileState[controller->mNextStepIndex];  in nextCompound()
1307         controller->mNextStepIndex = step->condStepIndex;  in nextCompound()
1351         controller->mNextStepIndex = step->bodyStepIndex;  in nextCompound()
1381         controller->mNextStepIndex = step->exitStepIndex;  in nextCompound()
1424     controller->mNextStepIndex = step->gotoStepIndex;  in nextCompound()