public static DomainVariablesBindingsResult AnalyzeDomain(IRelationDomain domain)
{
DomainVariablesBindingsResult result = new DomainVariablesBindingsResult {
AnalyzedDomain = domain
};
result.VariablesItCanBind.Add(domain.RootVariable);
if (domain.Pattern != null)
{
ObjectTemplateExp objectTemplateExp = (ObjectTemplateExp)domain.Pattern.TemplateExpression;
AnalyzeObjectTemplateExpression(objectTemplateExp, result, domain.IsEnforceable.GetValueOrDefault());
}
// if we can be self provided with a variable, we don't require it
HashSet <KeyValuePair <IPropertyTemplateItem, ISet <IVariable> > > toRemove = new HashSet <KeyValuePair <IPropertyTemplateItem, ISet <IVariable> > >();
foreach (KeyValuePair <IPropertyTemplateItem, ISet <IVariable> > required in result.IPropertyTemplateItemToVariablesRequired)
{
required.Value.ExceptWith(result.VariablesItCanBind);
if (required.Value.Count == 0)
{
toRemove.Add(required);
}
}
result.IPropertyTemplateItemToVariablesRequired.RemoveRange(toRemove);
return(result);
}
public static RelationAnalysisResult AnalyzeRelation(IRelation relation)
{
RelationAnalysisResult result = new RelationAnalysisResult {
AnalyzedRelation = relation
};
// First we analyze all the domains of the relation
foreach (IRelationDomain domain in relation.Domain.OfType <IRelationDomain>())
{
DomainVariablesBindingsResult domainResult = AnalyzerVariablesBindings.AnalyzeDomain(domain);
result.DomainAnalysisResults.Add(domainResult);
}
ISet <ITypedModel> otherresult = AnalyzerEnforceDirections.AnalyzeRelation(relation, result.DomainAnalysisResults);
result.DirectionsThatCanBeEnforced.UnionWith(otherresult);
//result.EffectiveKeys.AddRange(AnalyzerEffectiveKeys.Run(relation));
return(result);
}
private static void AnalyzeObjectTemplateExpression(IObjectTemplateExp objectTemplateExp, DomainVariablesBindingsResult currentResult, bool enforce, ISet <IObjectTemplateExp> analyzedSoFar = null)
{
if (analyzedSoFar == null)
{
analyzedSoFar = new HashSet <IObjectTemplateExp>();
}
if (!analyzedSoFar.Contains(objectTemplateExp))
{
analyzedSoFar.Add(objectTemplateExp);
if (!objectTemplateExp.IsAntiTemplate())
{
currentResult.VariablesItCanBind.Add(objectTemplateExp.BindsTo);
}
foreach (IPropertyTemplateItem propertyTemplateItem in objectTemplateExp.Part)
{
if (propertyTemplateItem.Value is IObjectTemplateExp)
{
IObjectTemplateExp casted = (IObjectTemplateExp)propertyTemplateItem.Value;
AnalyzeObjectTemplateExpression(casted, currentResult, enforce, analyzedSoFar);
}
else if (propertyTemplateItem.Value is IVariableExp)
{
IVariableExp casted = (IVariableExp)propertyTemplateItem.Value;
if (enforce)
{
if (!currentResult.IPropertyTemplateItemToVariablesRequired.ContainsKey(propertyTemplateItem))
{
currentResult.IPropertyTemplateItemToVariablesRequired[propertyTemplateItem] = new HashSet <IVariable>();
}
currentResult.IPropertyTemplateItemToVariablesRequired[propertyTemplateItem].Add(casted.ReferredVariable);
}
else
{
currentResult.VariablesItCanBind.Add(casted.ReferredVariable);
}
}
else if (propertyTemplateItem.Value is CSharpOpaqueExpression)
{
CSharpOpaqueExpression casted = (CSharpOpaqueExpression)propertyTemplateItem.Value;
if (!currentResult.IPropertyTemplateItemToVariablesRequired.ContainsKey(propertyTemplateItem))
{
currentResult.IPropertyTemplateItemToVariablesRequired[propertyTemplateItem] = new HashSet <IVariable>();
}
currentResult.IPropertyTemplateItemToVariablesRequired[propertyTemplateItem].UnionWith(casted.BindsTo);
}
}
}
}
