private static IPrintToken CreateInternal([CanBeNull] object item, [NotNull] HashSet <object> path, [NotNull] PrintSettings settings)
{
if (item == null)
{
return(NullValue);
}
if (!path.Add(item))
{
return(CyclicValue);
}
try
{
var itemType = item.GetType();
using (SecurityHelper.StartSecurityScope(itemType))
{
if (ToStringDetector.HasCustomToString(itemType))
{
return(new ValueToken(item.ToString()));
}
if (CustomFormatters.TryFormat(item, out var customFormatting))
{
return(new ValueToken(customFormatting));
}
if (DictionaryInspector.IsSimpleDictionary(itemType))
{
var pairs = DictionaryInspector.EnumerateSimpleDictionary(item);
var tokens = pairs.Select(pair => new PropertyToken(pair.Item1, CreateInternal(pair.Item2, path, settings))).ToArray();
if (tokens.Length == 0)
{
return(EmptyObjectValue);
}
return(new ObjectToken(tokens));
}
if (item is IEnumerable sequence)
{
if (!sequence.GetEnumerator().MoveNext())
{
return(EmptySequenceValue);
}
var tokens = new List <IPrintToken>();
foreach (var element in sequence)
{
tokens.Add(CreateInternal(element, path, settings));
}
return(new SequenceToken(tokens));
}
var fieldsAndProperties = new List <PropertyToken>();
foreach (var field in itemType.GetInstanceFields())
{
fieldsAndProperties.Add(ConstructProperty(field, () => CreateInternal(field.GetValue(item), path, settings), settings));
}
foreach (var property in itemType.GetInstanceProperties())
{
fieldsAndProperties.Add(ConstructProperty(property, () => CreateInternal(property.GetValue(item), path, settings), settings));
}
if (fieldsAndProperties.Count == 0)
{
return(EmptyObjectValue);
}
return(new ObjectToken(fieldsAndProperties));
}
}
finally
{
path.Remove(item);
}
}
public static IPrintToken Create([CanBeNull] object item, [NotNull] PrintSettings settings) => CreateInternal(item, new HashSet <object>(ByReferenceEqualityComparer <object> .Instance), settings);
private static PropertyToken ConstructProperty(MemberInfo member, Func <IPrintToken> getValue, PrintSettings settings)
{
IPrintToken value;
if (settings.HideSecretValues && SecurityHelper.IsSecret(member))
{
value = SecretValue;
}
else
{
try
{
value = getValue();
}
catch
{
value = ErrorValue;
}
}
return(new PropertyToken(member.Name, value));
}
private static PropertyToken ConstructPropertyToken(bool shouldHide, Func <IPrintToken> valueProvider, string propertyName, PrintSettings settings)
{
IPrintToken value;
if (settings.HideSecretValues && shouldHide)
{
value = SecretValue;
}
else
{
try
{
value = valueProvider();
}
catch
{
value = ErrorValue;
}
}
return(new PropertyToken(propertyName, value));
}
private static PropertyToken ConstructProperty(MemberInfo member, Func <IPrintToken> getValue, PrintSettings settings) => ConstructPropertyToken(SecurityHelper.IsSecret(member), getValue, member.Name, settings);
public PrintContext(PrintSettings settings) => this.settings = settings;