/// <summary>
/// Take care of all conditions
/// </summary>
/// <param name="obj"></param>
/// <param name="visitSubNodes"></param>
public override void visit(Generated.RuleCondition obj, bool visitSubNodes)
{
RuleCondition ruleCondition = (RuleCondition)obj;
if (ruleCondition.Uses(Target))
{
Usages.Add(ruleCondition);
}
base.visit(obj, visitSubNodes);
}
public override void visit(Generated.RuleCondition obj, bool subNodes)
{
Rules.RuleCondition ruleCondition = obj as Rules.RuleCondition;
if (ruleCondition != null)
{
try
{
bool found = false;
ruleCondition.Messages.Clear();
foreach (Rules.PreCondition preCondition in ruleCondition.PreConditions)
{
Interpreter.BinaryExpression expression = checkExpression(preCondition, preCondition.Expression) as Interpreter.BinaryExpression;
if (expression != null)
{
if (expression.IsSimpleEquality())
{
Types.ITypedElement variable = expression.Left.Ref as Types.ITypedElement;
if (variable != null)
{
if (variable.Type != null)
{
// Check that when preconditions are based on a request,
// the corresponding action affects the value Request.Disabled to the same variable
if (variable.Type.Name.Equals("Request") && expression.Right != null && expression.Right is Interpreter.UnaryExpression)
{
Values.IValue val2 = expression.Right.Ref as Values.IValue;
if (val2 != null && "Response".CompareTo(val2.Name) == 0)
{
if (ruleCondition != null)
{
found = false;
foreach (Rules.Action action in ruleCondition.Actions)
{
Variables.IVariable var = OverallVariableFinder.INSTANCE.findByName(action, preCondition.findVariable());
Interpreter.Statement.VariableUpdateStatement update = action.Modifies(var);
if (update != null)
{
Interpreter.UnaryExpression updateExpr = update.Expression as Interpreter.UnaryExpression;
if (updateExpr != null)
{
Values.IValue val3 = updateExpr.Ref as Values.IValue;
if (val3 != null && val3.Name.CompareTo("Disabled") == 0)
{
found = true;
break;
}
}
}
}
if (!found)
{
preCondition.AddError("Rules where the Pre conditions is based on a Request type variable must assign that variable the value 'Request.Disabled'");
}
}
}
}
}
// Check that the outgoing variables are not read
if (variable.Mode == Generated.acceptor.VariableModeEnumType.aOutgoing)
{
if (ruleCondition.Reads(variable))
{
preCondition.AddError("An outgoing variable cannot be read");
}
}
// Check that the incoming variables are not modified
if (variable.Mode == Generated.acceptor.VariableModeEnumType.aIncoming)
{
if (ruleCondition.Modifies(variable) != null)
{
preCondition.AddError("An incoming variable cannot be written");
}
}
}
}
}
}
}
catch (Exception exception)
{
ruleCondition.AddException(exception);
}
}
base.visit(obj, subNodes);
}
/// <summary>
/// Check if this rule corresponds to a transition for this state machine
/// </summary>
/// <param name="obj"></param>
/// <param name="visitSubNodes"></param>
public override void visit(Generated.RuleCondition obj, bool visitSubNodes)
{
Rules.RuleCondition ruleCondition = (Rules.RuleCondition)obj;
foreach (Rules.Action action in ruleCondition.Actions)
{
foreach (Interpreter.Statement.VariableUpdateStatement update in action.UpdateStatements)
{
Types.Type targetType = update.TargetType;
if (targetType is StateMachine)
{
Interpreter.Expression expressionTree = update.Expression;
if (expressionTree != null)
{
// HaCK: This is a bit rough, but should be sufficient for now...
foreach (Constants.State stt1 in GetStates(expressionTree))
{
// TargetState is the target state either in this state machine or in a sub state machine
Constants.State targetState = StateMachine.StateInThisStateMachine(stt1);
int transitionCount = Transitions.Count;
bool filteredOut = false;
// Finds the enclosing state of this action to determine the source state of this transition
Constants.State enclosingState = Utils.EnclosingFinder <Constants.State> .find(action);
if (enclosingState != null)
{
filteredOut = filteredOut || AddTransition(update, stt1, null, enclosingState);
}
if (!filteredOut)
{
foreach (Rules.PreCondition preCondition in ruleCondition.AllPreConditions)
{
// A transition from one state to another has been found
foreach (Constants.State stt2 in GetStates(preCondition.ExpressionTree))
{
filteredOut = filteredOut || AddTransition(update, stt1, preCondition, stt2);
}
}
}
if (Transitions.Count == transitionCount)
{
if (targetState == stt1 && targetState.EnclosingStateMachine == StateMachine)
{
if (!filteredOut)
{
// No precondition could be found => one can reach this state at anytime
Transitions.Add(new Rules.Transition(null, null, update, targetState));
}
}
}
}
}
else
{
action.AddError("Cannot parse expression");
}
}
}
}
base.visit(obj, visitSubNodes);
}
/// <summary>
/// Cleans all text fields in this element
/// </summary>
/// <param name="obj"></param>
/// <param name="visitSubNodes"></param>
public override void visit(Generated.RuleCondition obj, bool visitSubNodes)
{
base.visit(obj, visitSubNodes);
}
