protected virtual Expression VisitContains(ContainsExpression node)
{
Visit(node.Column);
Append("IN (");
Visit(node.Content);
Append(")", false);
return(node);
}
private ContainsExpression BuildContainsExpression(MethodCallExpression methodCallExpression)
{
var constant = (ConstantExpression)BuildExpression(methodCallExpression.Arguments[0]);
var enumerable = constant.Value as IEnumerable;
if (enumerable == null)
{
throw new NotSupportedException("Invalid type: " + constant.Value.GetType());
}
var containsExpression = new ContainsExpression((ColumnExpression)BuildExpression(methodCallExpression.Arguments[1]),
enumerable
);
return(containsExpression);
}
private ContainsExpression BuildContainsExpression(MethodCallExpression methodCallExpression)
{
var containsExpression = new ContainsExpression
{
Column = (ColumnExpression)BuildExpression(methodCallExpression.Arguments[1])
};
var constant = (ConstantExpression)BuildExpression(methodCallExpression.Arguments[0]);
var enumerable = constant.Value as IEnumerable;
if (enumerable == null)
{
throw new NotSupportedException("Invalid type: " + constant.Value.GetType());
}
foreach (var value in enumerable)
{
containsExpression.AddContent(Expression.Constant(value));
}
return(containsExpression);
}
protected virtual Expression VisitContains(ContainsExpression node)
{
Visit(node.Column);
Append("IN (");
Visit(node.Content);
Append(")", false);
return node;
}
