/// <summary>
/// Checks the statement for semantical errors
/// </summary>
public override void CheckStatement()
{
if (ListExpression != null)
{
ListExpression.CheckExpression();
Collection listExpressionType = ListExpression.GetExpressionType() as Collection;
if (listExpressionType == null)
{
Root.AddError("Target does not references a list");
}
}
else
{
Root.AddError("List should be specified");
}
if (ConditionExpression != null)
{
ConditionExpression.CheckExpression();
}
if (AppliedStatement != null)
{
AppliedStatement.CheckStatement();
}
else
{
Root.AddError("Procedure should be specified in the APPLY statement");
}
}
/// <summary>
/// Checks the expression and appends errors to the root tree node when inconsistencies are found
/// </summary>
public override void CheckExpression()
{
base.CheckExpression();
if (ListExpression != null)
{
ListExpression.CheckExpression();
Type listExpressionType = ListExpression.GetExpressionType();
if (!(listExpressionType is Collection))
{
AddError("List expression " + ListExpression + " should hold a collection", RuleChecksEnum.SyntaxError);
}
}
else
{
AddError("List expression should be provided", RuleChecksEnum.SyntaxError);
}
}
/// <summary>
/// Checks the statement for semantical errors
/// </summary>
public override void CheckStatement()
{
if (ListExpression != null)
{
ListExpression.CheckExpression();
if (ListExpression.Ref is Parameter)
{
Root.AddError("Cannot change the list value which is a parameter (" + ListExpression + ")");
}
Collection targetListType = ListExpression.GetExpressionType() as Collection;
if (targetListType != null)
{
if (Value != null)
{
Type elementType = Value.GetExpressionType();
if (elementType != targetListType.Type)
{
Root.AddError("Inserted element type does not corresponds to list type");
}
}
if (ReplaceElement != null)
{
ReplaceElement.CheckExpression();
Type replaceElementType = ReplaceElement.GetExpressionType();
if (replaceElementType != null)
{
if (targetListType.Type != null)
{
if (replaceElementType != targetListType.Type)
{
Root.AddError("The replace element type (" + replaceElementType.FullName +
") does not correspond to the list type (" +
targetListType.Type.FullName +
")");
}
}
else
{
Root.AddError("Cannot determine list element's type for " + targetListType.FullName);
}
}
else
{
Root.AddError("Cannot determine replacement element type");
}
}
}
else
{
Root.AddError("Cannot determine collection type of " + ListExpression);
}
}
else
{
Root.AddError("List should be specified");
}
if (Value != null)
{
Value.CheckExpression();
}
else
{
Root.AddError("Value should be specified");
}
}