bool INodeTypeResolver.Resolve(NodeEvent nodeEvent, ref Type currentType)
{
if (currentType == typeof(string) || currentType == typeof(object))
{
var scalar = nodeEvent as Scalar;
if (scalar != null && scalar.IsPlainImplicit)
{
if (Regexes.BooleanLike.IsMatch(scalar.Value))
{
currentType = typeof(bool);
return true;
}
if (Regexes.IntegerLike.IsMatch(scalar.Value))
{
currentType = typeof(int);
return true;
}
if (Regexes.DoubleLike.IsMatch(scalar.Value))
{
currentType = typeof(double);
return true;
}
}
}
return false;
}
bool INodeTypeResolver.Resolve(NodeEvent nodeEvent, ref Type currentType)
{
if (!string.IsNullOrEmpty(nodeEvent.Tag))
{
currentType = Type.GetType(nodeEvent.Tag.Substring(1), true);
return true;
}
return false;
}
bool INodeTypeResolver.Resolve(NodeEvent nodeEvent, ref Type currentType)
{
Type predefinedType;
if (!string.IsNullOrEmpty(nodeEvent.Tag) && tagMappings.TryGetValue(nodeEvent.Tag, out predefinedType))
{
currentType = predefinedType;
return true;
}
return false;
}
private Type GetTypeFromEvent(NodeEvent nodeEvent, Type currentType)
{
foreach (var typeResolver in typeResolvers)
{
if (typeResolver.Resolve(nodeEvent, ref currentType))
{
break;
}
}
return currentType;
}
/// <summary>
/// Loads the specified event.
/// </summary>
/// <param name="yamlEvent">The event.</param>
/// <param name="state">The state of the document.</param>
internal void Load(NodeEvent yamlEvent, DocumentLoadingState state)
{
Tag = yamlEvent.Tag;
if (yamlEvent.Anchor != null)
{
Anchor = yamlEvent.Anchor;
state.AddAnchor(this);
}
Start = yamlEvent.Start;
End = yamlEvent.End;
}
bool INodeTypeResolver.Resolve(NodeEvent nodeEvent, ref Type currentType)
{
if (!string.IsNullOrEmpty(nodeEvent.Tag))
{
// If type could not be loaded, make sure to pass resolving
// to the next resolver
currentType = Type.GetType(nodeEvent.Tag.Substring(1), throwOnError: false);
return currentType != null;
}
return false;
}
bool INodeTypeResolver.Resolve(NodeEvent nodeEvent, ref Type currentType)
{
if (!string.IsNullOrEmpty(nodeEvent.Tag))
{
// If type could not be loaded, make sure to pass resolving
// to the next resolver
try
{
currentType = Type.GetType(nodeEvent.Tag.Substring(1), true);
return true;
}
catch { }
}
return false;
}
private bool NodeIsNull(NodeEvent nodeEvent)
{
// http://yaml.org/type/null.html
if (nodeEvent.Tag == "tag:yaml.org,2002:null")
{
return true;
}
var scalar = nodeEvent as Scalar;
if (scalar == null || scalar.Style != Core.ScalarStyle.Plain)
return false;
var value = scalar.Value;
return value == "" || value == "~" || value == "null" || value == "Null" || value == "NULL";
}
bool INodeTypeResolver.Resolve(NodeEvent nodeEvent, ref Type currentType)
{
if (currentType == typeof(object))
{
if (nodeEvent is SequenceStart)
{
currentType = typeof(List<object>);
return true;
}
if (nodeEvent is MappingStart)
{
currentType = typeof(Dictionary<object, object>);
return true;
}
}
return false;
}
public bool Resolve(NodeEvent nodeEvent, ref Type currentType)
{
#pragma warning disable 0618 // IYamlSerializable is obsolete
return typeof(IYamlSerializable).IsAssignableFrom(currentType);
#pragma warning restore 0618
}
public bool Resolve(NodeEvent nodeEvent, ref Type currentType)
{
return typeof(IYamlConvertible).IsAssignableFrom(currentType);
}