public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MethodCallExpression methodCallExpression = expression as MethodCallExpression;
if (expression == null)
{
return(null);
}
var innerExpression = methodCallExpression?.Arguments[1];
if (innerExpression is LambdaExpression lambdaExpression)
{
var attributeExpression = lambdaExpression.Body;
if (attributeExpression.NodeType == ExpressionType.And || attributeExpression.NodeType == ExpressionType.AndAlso)
{
IPredicateVisitor attributeValuePredicateVisitor = predicateVisitorFactory.Create(((BinaryExpression)attributeExpression).Right);
IPredicateVisitor attributeName = GetAttributeName(((BinaryExpression)attributeExpression).Left, predicateVisitorFactory);
AccessorPredicateVisitor parentAccessor = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]) as AccessorPredicateVisitor;
AccessorPredicateVisitor accessor = new AccessorPredicateVisitor(attributeName, parentAccessor);
if (attributeValuePredicateVisitor is IAccessorAppendable accessorAppendablePredicate)
{
accessorAppendablePredicate.AppendAccessor(accessor);
}
return(attributeValuePredicateVisitor);
}
}
throw new NotSupportedException();
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
if (expression is MethodCallExpression methodCallExpression)
{
if (methodCallExpression.Object is MemberExpression memberExpression)
{
AccessorPredicateVisitor parentAccessor = predicateVisitorFactory.Create(memberExpression.Expression) as AccessorPredicateVisitor;
IPredicateVisitor constantPredicateVisitor = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]);
return(new AccessorPredicateVisitor(RemoveQuotes(constantPredicateVisitor), parentAccessor));
}
}
return(null);
}
public void AppendAccessor(AccessorPredicateVisitor accessor)
{
if (this.operand != null)
{
if (this.operand is IAccessorAppendable accessorAppendablePredicate)
{
accessorAppendablePredicate.AppendAccessor(accessor);
}
}
else
{
this.operand = accessor;
}
}
public void AppendAccessor(AccessorPredicateVisitor accessor)
{
if (this.parentAccessor == null)
{
this.parentAccessor = accessor;
}
else
{
if (this.parentAccessor is IAccessorAppendable accessorAppendablePredicate)
{
accessorAppendablePredicate.AppendAccessor(accessor);
}
}
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
if (expression is MethodCallExpression methodCallExpression)
{
string currentName = methodCallExpression.Method.Name;
string currentAccessor = ParseMethodAccessorName(currentName);
if (string.IsNullOrEmpty(currentAccessor))
{
return(predicateVisitorFactory.Create(methodCallExpression.Arguments[0]));
}
AccessorPredicateVisitor parentAccessor = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]) as AccessorPredicateVisitor;
ConstantPredicateVisitor constantPredicateVisitor = new ConstantPredicateVisitor(currentAccessor);
return(new AccessorPredicateVisitor(constantPredicateVisitor, parentAccessor));
}
throw new NotSupportedException();
}
public IPredicateVisitor Convert(Expression expression, IPredicateVisitorFactory predicateVisitorFactory)
{
MethodCallExpression methodCallExpression = expression as MethodCallExpression;
if (methodCallExpression == null)
{
return(null);
}
if (methodCallExpression.Arguments.Count >= 2)
{
IPredicateVisitor inside = predicateVisitorFactory.Create(methodCallExpression.Arguments[1]);
IPredicateVisitor parent = predicateVisitorFactory.Create(methodCallExpression.Arguments[0]);
AccessorPredicateVisitor stringPredicateVisitor = new AccessorPredicateVisitor(inside, parent);
return(stringPredicateVisitor);
}
throw new NotSupportedException();
}
