C++ genactionlist::Iter类代码示例

/* Gather various info on the machine. */
void CodeGenData::analyzeMachine()
{
	/* Find the true count of action references.  */
	findFinalActionRefs();

	/* Check if there are any calls in action code. */
	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
		/* Record the occurrence of various kinds of actions. */
		if ( act->numToStateRefs > 0 )
			redFsm->bAnyToStateActions = true;
		if ( act->numFromStateRefs > 0 )
			redFsm->bAnyFromStateActions = true;
		if ( act->numEofRefs > 0 )
			redFsm->bAnyEofActions = true;
		if ( act->numTransRefs > 0 )
			redFsm->bAnyRegActions = true;

		/* Recurse through the action's parse tree looking for various things. */
		analyzeAction( act, act->inlineList );
	}

	/* Analyze reduced action lists. */
	for ( GenActionTableMap::Iter redAct = redFsm->actionMap; redAct.lte(); redAct++ ) {
		for ( GenActionTable::Iter act = redAct->key; act.lte(); act++ )
			analyzeActionList( redAct, act->value->inlineList );
	}

	/* Find states that have transitions with actions that have next
	 * statements. */
	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
		/* Check any actions out of outSinge. */
		for ( RedTransList::Iter rtel = st->outSingle; rtel.lte(); rtel++ ) {
			if ( rtel->value->action != 0 && rtel->value->action->anyCurStateRef() )
				st->bAnyRegCurStateRef = true;
		}

		/* Check any actions out of outRange. */
		for ( RedTransList::Iter rtel = st->outRange; rtel.lte(); rtel++ ) {
			if ( rtel->value->action != 0 && rtel->value->action->anyCurStateRef() )
				st->bAnyRegCurStateRef = true;
		}

		/* Check any action out of default. */
		if ( st->defTrans != 0 && st->defTrans->action != 0 && 
				st->defTrans->action->anyCurStateRef() )
			st->bAnyRegCurStateRef = true;
		
		if ( st->stateCondList.length() > 0 )
			redFsm->bAnyConditions = true;

		if ( st->eofTrans != 0 )
			redFsm->bAnyEofTrans = true;
	}

	/* Assign ids to actions that are referenced. */
	assignActionIds();

	/* Set the maximums of various values used for deciding types. */
	setValueLimits();
}

/* Assign ids to referenced actions. */
void CodeGenData::assignActionIds()
{
	int nextActionId = 0;
	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
		/* Only ever interested in referenced actions. */
		if ( act->numRefs() > 0 )
			act->actionId = nextActionId++;
	}
}

void CodeGenData::closeMachine()
{
	for ( GenActionList::Iter a = actionList; a.lte(); a++ )
		resolveTargetStates( a->inlineList );

	/* Note that even if we want a complete graph we do not give the error
	 * state a default transition. All machines break out of the processing
	 * loop when in the error state. */

	for ( RedStateList::Iter st = redFsm->stateList; st.lte(); st++ ) {
		for ( GenStateCondList::Iter sci = st->stateCondList; sci.lte(); sci++ )
			st->stateCondVect.append( sci );
	}
}

std::ostream &RubyTabCodeGen::ACTION_SWITCH()
{
    /* Walk the list of functions, printing the cases. */
    for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
        /* Write out referenced actions. */
        if ( act->numTransRefs > 0 ) {
            /* Write the case label, the action and the case break. */
            out << "when " << act->actionId << " then\n";
            ACTION( out, act, 0, false );
        }
    }

    genLineDirective( out );
    return out;
}

std::ostream &OCamlTabCodeGen::EOF_ACTION_SWITCH()
{
	/* Walk the list of functions, printing the cases. */
	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
		/* Write out referenced actions. */
		if ( act->numEofRefs > 0 ) {
			/* Write the case label, the action and the case break. */
			out << "\t| " << act->actionId << " ->\n";
			ACTION( out, act, 0, true );
		}
	}

	genLineDirective( out );
	return out;
}

std::ostream &TabCodeGen::TO_STATE_ACTION_SWITCH()
{
	/* Walk the list of functions, printing the cases. */
	for ( GenActionList::Iter act = actionList; act.lte(); act++ ) {
		/* Write out referenced actions. */
		if ( act->numToStateRefs > 0 ) {
			/* Write the case label, the action and the case break. */
			out << "\tcase " << act->actionId << ":\n";
			ACTION( out, act, 0, false, false );
			out << "\tbreak;\n";
		}
	}

	genLineDirective( out );
	return out;
}