public override Expression VisitIfAction([NotNull] IfActionContext context)
{
var action = VisitExpression(context.expression());
action = PredefinedObjects.GetIfAction(action);
Actions.Add(action);
return(null);
}
public override Expression VisitDszAction([NotNull] DszActionContext context)
{
var index = GetIndexNumber(context.index());
var variable = Variables[index];
var action = PredefinedObjects.GetDszAction(variable);
Actions.Add(action);
return(null);
}
public override Expression VisitPresentAction([NotNull] PresentActionContext context)
{
var signalIndex = GetIndexNumber(context.index());
var signal = Oc5Model.Signals[signalIndex];
var variable = Variables[signal.VarIndex];
var action = PredefinedObjects.GetPresentAction(variable);
Actions.Add(action);
return(null);
}
public override Expression VisitConstantExpression([NotNull] ConstantExpressionContext context)
{
if (IsPredefined(context.index()))
{
var predefinedConstantIndex = GetIndexNumber(context.index());
return(PredefinedObjects.GetConstantExpression(predefinedConstantIndex));
}
else
{
var index = GetIndexNumber(context.index());
return(Constants[index]);
}
}
public override Expression VisitConstant([NotNull] ConstantContext context)
{
if (!IsPredefined(context.index()))
{
throw new UnsupportedSyntaxException("User-defined constants", context.index().Start);
}
var predefinedTypeIndex = int.Parse(context.index().NUMBER().ToString());
var constantExpression = PredefinedObjects.GetConstantExpressionOfType(predefinedTypeIndex);
Constants.Add(constantExpression);
return(null);
}
public override Expression VisitCallAction([NotNull] CallActionContext context)
{
var procedureIndex = GetIndexNumber(context.index()[0]);
var variableIndex = GetIndexNumber(context.index()[1]);
var variable = Variables[variableIndex];
var expression = VisitExpression(context.expression());
var action = PredefinedObjects.GetProcedure(procedureIndex, variable, expression);
Actions.Add(action);
return(null);
}
public override Expression VisitVariable([NotNull] VariableContext context)
{
if (!IsPredefined(context.index()))
{
throw new UnsupportedSyntaxException("User-defined index", context.index().Start);
}
var predefinedTypeIndex = GetIndexNumber(context.index());
var variableExpression = PredefinedObjects.GetVariableExpression(predefinedTypeIndex, Oc5ModelState, Oc5StateParameterExpression);
Variables.Add(variableExpression);
return(null);
}
public override Expression VisitFunctionCallExpression([NotNull] FunctionCallExpressionContext context)
{
if (!IsPredefined(context.index()))
{
throw new UnsupportedSyntaxException("User-defined functions", context.index().Start);
}
var functionIndex = GetIndexNumber(context.index());
var expressions = new List <Expression>();
foreach (var child in context.expressionList().children)
{
if (child is ExpressionContext)
{
expressions.Add(VisitExpression(child as ExpressionContext));
}
}
return(PredefinedObjects.GetFunctionExpression(functionIndex, expressions.ToArray()));
}