internal static Exception BindingSourceNotFound(BindingMemberExpressionNode node)
{
return
(new InvalidOperationException(
string.Format("The source cannot be found parameter name '{0}', binding member '{1}'",
node.ParameterName, node.Path)));
}
private IExpressionNode VisitMethodCall(IMethodCallExpressionNode methodCall)
{
_isMulti = true;
if (methodCall.Target != null)
{
return(methodCall);
}
BindingMemberExpressionNode member = GetOrAddBindingMember(string.Empty, (s, i) => new BindingMemberExpressionNode(string.Empty, s, i));
return(new MethodCallExpressionNode(member, methodCall.Method, methodCall.Arguments, methodCall.TypeArgs).Accept(this));
}
private Expression BuildBindingMember(BindingMemberExpressionNode bindingMember)
{
var param = Parameters.FirstOrDefault(expression => expression.Value.Name == bindingMember.ParameterName);
if (param.Value != null)
{
return(param.Value);
}
var index = bindingMember.Index;
if (index >= SourceValues.Count)
{
throw BindingExceptionManager.BindingSourceNotFound(bindingMember);
}
var parameter = SourceValues[index];
Type type = typeof(object);
if (parameter == null)
{
var binding = DataContext.GetData(BindingConstants.Binding);
if (binding != null)
{
var last = binding.SourceAccessor.Sources[index].GetPathMembers(false).LastMember;
type = last.Type;
}
}
else
{
type = parameter.GetType();
}
var exParam = Expression.Parameter(type, bindingMember.ParameterName);
Parameters.Add(new KeyValuePair <int, ParameterExpression>(index, exParam));
return(exParam);
}
internal static Exception BindingSourceNotFound(BindingMemberExpressionNode node)
{
return(new InvalidOperationException($"The source cannot be found parameter name '{node.ParameterName}', binding member '{node.Path}'"));
}
