/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
// ListExpression
if (ListExpression != null)
{
ListExpression.SemanticAnalysis(instance, IsRightSide.INSTANCE);
StaticUsage.AddUsages(ListExpression.StaticUsage, Usage.ModeEnum.Read);
Collection collectionType = ListExpression.GetExpressionType() as Collection;
if (collectionType != null)
{
StaticUsage.AddUsage(collectionType, Root, Usage.ModeEnum.Type);
IteratorVariable.Type = collectionType.Type;
PreviousIteratorVariable.Type = collectionType.Type;
}
else
{
AddError("Cannot determine collection type on list expression " + ToString(), RuleChecksEnum.SemanticAnalysisError);
}
}
else
{
AddError("List expression not provided", RuleChecksEnum.SemanticAnalysisError);
}
}
return(retVal);
}
/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
Type elementType = null;
if (ListElements != null)
{
foreach (Expression expr in ListElements)
{
expr.SemanticAnalysis(instance, expectation);
StaticUsage.AddUsages(expr.StaticUsage, null);
Type current = expr.GetExpressionType();
if (elementType == null)
{
elementType = current;
}
else
{
if (!current.Match(elementType))
{
AddError("Cannot mix types " + current + " and " + elementType + "in collection", RuleChecksEnum.SemanticAnalysisError);
}
}
}
}
if (elementType != null)
{
ExpressionType = (Collection)acceptor.getFactory().createCollection();
ExpressionType.Type = elementType;
ExpressionType.Name = "ListOf_" + elementType.FullName;
ExpressionType.Enclosing = Root.EFSSystem;
ExpressionType.setMaxSize(ListElements.Count);
StaticUsage.AddUsage(elementType, Root, Usage.ModeEnum.Type);
}
else
{
ExpressionType = new GenericCollection(EfsSystem.Instance);
}
}
return(retVal);
}
/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
Ref = null;
ReturnValue tmp = GetReferences(instance, expectation, false);
if (tmp.IsUnique)
{
// Unique element has been found. Reference it and perform the semantic analysis
// on all dereferenced expression, now that the context is known for each expression
Ref = tmp.Values[0].Value;
StaticUsage.AddUsage(Ref, Root, null);
References referenceFilter;
ReturnValueElement current = tmp.Values[0];
for (int i = Arguments.Count - 1; i > 0; i--)
{
referenceFilter = new References(current.Value);
current = current.PreviousElement;
Arguments[i].SemanticAnalysis(current.Value, referenceFilter);
StaticUsage.AddUsages(Arguments[i].StaticUsage, null);
StaticUsage.AddUsage(Arguments[i].Ref, Root, null);
}
referenceFilter = new References(current.Value);
Arguments[0].SemanticAnalysis(null, referenceFilter);
StaticUsage.AddUsages(Arguments[0].StaticUsage, null);
StaticUsage.AddUsage(Arguments[0].Ref, Root, null);
}
else if (tmp.IsAmbiguous)
{
// Several possible interpretations for this deref expression, not allowed
AddError("Expression " + ToString() + " may have several interpretations " + tmp +
", please disambiguate", RuleChecksEnum.SemanticAnalysisError);
}
else
{
// No possible interpretation for this deref expression, not allowed
AddError("Expression " + ToString() + " has no interpretation", RuleChecksEnum.SemanticAnalysisError);
}
}
return(retVal);
}
/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
// InitialValue
if (InitialValue != null)
{
InitialValue.SemanticAnalysis(instance, IsRightSide.INSTANCE);
StaticUsage.AddUsages(InitialValue.StaticUsage, Usage.ModeEnum.Read);
LastIteration.Type = InitialValue.GetExpressionType();
CurrentIteration.Type = InitialValue.GetExpressionType();
StaticUsage.AddUsage(InitialValue.GetExpressionType(), Root, Usage.ModeEnum.Type);
}
else
{
AddError("Initial value not provided", RuleChecksEnum.SemanticAnalysisError);
}
// Expression
if (Expression != null)
{
Expression.SemanticAnalysis(instance, AllMatches.INSTANCE);
StaticUsage.AddUsages(Expression.StaticUsage, Usage.ModeEnum.Read);
}
else
{
Root.AddError("Accumulator expression value not provided");
}
// Condition
if (Condition != null)
{
Condition.SemanticAnalysis(instance, AllMatches.INSTANCE);
StaticUsage.AddUsages(Condition.StaticUsage, Usage.ModeEnum.Read);
}
else
{
Root.AddError("Stop condition not provided");
}
}
return(retVal);
}
/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
// Binding expression
if (BindingExpression != null)
{
BindingExpression.SemanticAnalysis(instance, IsRightSide.INSTANCE);
StaticUsage.AddUsages(BindingExpression.StaticUsage, Usage.ModeEnum.Read);
Type bindingExpressionType = BindingExpression.GetExpressionType();
if (bindingExpressionType != null)
{
StaticUsage.AddUsage(bindingExpressionType, Root, Usage.ModeEnum.Type);
BoundVariable.Type = bindingExpressionType;
}
else
{
AddError("Cannot determine binding expression type for " + ToString(), RuleChecksEnum.SemanticAnalysisError);
}
}
else
{
AddError("Binding expression not provided", RuleChecksEnum.SemanticAnalysisError);
}
// The evaluated expression
if (Expression != null)
{
Expression.SemanticAnalysis(instance, expectation);
StaticUsage.AddUsages(Expression.StaticUsage, Usage.ModeEnum.Read);
}
else
{
AddError("Value expression not provided", RuleChecksEnum.SemanticAnalysisError);
}
}
return(retVal);
}
/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
// Called
if (Called != null)
{
Called.SemanticAnalysis(instance, IsCallable.INSTANCE);
StaticUsage.AddUsages(Called.StaticUsage, Usage.ModeEnum.Call);
// Actual parameters
foreach (Expression actual in ActualParameters)
{
actual.SemanticAnalysis(instance, IsActualParameter.INSTANCE);
StaticUsage.AddUsages(actual.StaticUsage, Usage.ModeEnum.Read);
}
foreach (KeyValuePair <Designator, Expression> pair in NamedActualParameters)
{
ICallable called = Called.Ref as ICallable;
if (called != null)
{
pair.Key.Ref = called.GetFormalParameter(pair.Key.Image);
StaticUsage.AddUsage(pair.Key.Ref, Root, Usage.ModeEnum.Parameter);
}
pair.Value.SemanticAnalysis(instance, IsActualParameter.INSTANCE);
StaticUsage.AddUsages(pair.Value.StaticUsage, Usage.ModeEnum.Read);
}
ParameterAssociation = CreateParameterAssociation(Called.Ref as ICallable);
}
else
{
AddError("Called function not provided", RuleChecksEnum.SemanticAnalysisError);
}
}
return(retVal);
}
/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
// Value
if (Type != null)
{
Value = Type.getValue(Image);
StaticUsage.AddUsage(Type, Root, Usage.ModeEnum.Type);
}
if (Value == null)
{
AddError("Cannot evaluate " + ToString() + " as a number", RuleChecksEnum.SemanticAnalysisError);
}
}
return(retVal);
}
/// <summary>
/// Performs the semantic analysis of the expression
/// </summary>
/// <param name="instance">the reference instance on which this element should analysed</param>
/// <param name="expectation">Indicates the kind of element we are looking for</param>
/// <returns>True if semantic analysis should be continued</returns>
public override bool SemanticAnalysis(INamable instance, BaseFilter expectation)
{
bool retVal = base.SemanticAnalysis(instance, expectation);
if (retVal)
{
// Structure
if (Structure != null)
{
Structure.SemanticAnalysis(instance, IsStructure.INSTANCE);
StaticUsage.AddUsages(Structure.StaticUsage, Usage.ModeEnum.Type);
// Structure field Association
if (Associations != null)
{
Structure structureType = Structure.Ref as Structure;
foreach (KeyValuePair <Designator, Expression> pair in Associations)
{
if (structureType != null)
{
pair.Key.Ref = structureType.FindStructureElement(pair.Key.Image);
StaticUsage.AddUsage(pair.Key.Ref, Root, Usage.ModeEnum.Parameter);
}
pair.Value.SemanticAnalysis(instance, IsRightSide.INSTANCE);
StaticUsage.AddUsages(pair.Value.StaticUsage, Usage.ModeEnum.Read);
}
}
}
else
{
AddError("Structure type not specified", RuleChecksEnum.SemanticAnalysisError);
}
}
return(retVal);
}