internal static bool TryGetListInitializers(SyntaxTreeNode listNode, BindingContext bindingContext, out ElementInit[] initializers, out Exception bindingError)
{
if (listNode == null)
{
throw new ArgumentNullException("listNode");
}
if (bindingContext == null)
{
throw new ArgumentNullException("bindingContext");
}
bindingError = null;
var initializerNodes = listNode.GetInitializers(throwOnError: true);
initializers = new ElementInit[initializerNodes.Count];
for (var i = 0; i < initializers.Length; i++)
{
var index = Constants.GetIndexAsString(i);
var initializerObj = default(object);
if (initializerNodes.TryGetValue(index, out initializerObj) == false || initializerObj is SyntaxTreeNode == false)
{
return(false); // failed to get initializer #i
}
var initializerNode = (SyntaxTreeNode)initializerObj;
var addMethodName = initializerNode.GetMethodName(throwOnError: true);
var addMethod = default(MemberDescription);
if (bindingContext.TryResolveMember(addMethodName, out addMethod) == false || addMethod.IsMethod == false)
{
return(false); // failed to resolve 'Add' method
}
var argumentNodes = initializerNode.GetArguments(throwOnError: true);
var arguments = new Expression[argumentNodes.Count];
for (var p = 0; p < arguments.Length; p++)
{
var parameter = addMethod.GetParameter(p);
var parameterType = TypeDescription.GetTypeDescription(parameter.ParameterType);
var argumentNode = default(SyntaxTreeNode);
if (argumentNodes.TryGetValue(p, out argumentNode) == false && argumentNodes.TryGetValue(parameter.Name, out argumentNode) == false)
{
return(false); // failed to find argument #p
}
if (AnyBinder.TryBindInNewScope(argumentNode, bindingContext, parameterType, out arguments[p], out bindingError) == false)
{
return(false); // failed to bind argument #p
}
}
initializers[i] = Expression.ElementInit(addMethod, arguments);
}
return(true);
}
