public static bool DumpedCollection(
this TextWriter writer,
IEnumerable sequence,
DumpAttribute dumpAttribute,
Action <object> dumpObject,
Action indent,
Action unindent)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (sequence == null)
{
throw new ArgumentNullException(nameof(sequence));
}
if (dumpAttribute == null)
{
throw new ArgumentNullException(nameof(dumpAttribute));
}
if (dumpObject == null)
{
throw new ArgumentNullException(nameof(dumpObject));
}
if (indent == null)
{
throw new ArgumentNullException(nameof(indent));
}
if (unindent == null)
{
throw new ArgumentNullException(nameof(unindent));
}
var sequenceType = sequence.GetType();
var elementsType = sequenceType.IsArray
? new Type[] { sequenceType.GetElementType() }
: sequenceType.IsGenericType
? sequenceType.GetGenericArguments()
: new Type[] { typeof(object) };
int count = 0;
if (sequenceType.IsArray)
{
var piLength = sequenceType.GetProperty(nameof(Array.Length), BindingFlags.Instance | BindingFlags.Public);
count = (int)piLength.GetValue(sequence);
}
else
{
var piCount = sequenceType.GetProperty(nameof(ICollection.Count), BindingFlags.Instance | BindingFlags.Public);
if (piCount != null)
{
count = (int)piCount.GetValue(sequence);
}
else
{
count = int.MaxValue;
}
}
// how many items to dump max?
var max = dumpAttribute.GetMaxToDump(count);
writer.Write(
DumpFormat.SequenceTypeName,
sequenceType.IsArray
? elementsType[0].GetTypeName()
: sequenceType.GetTypeName(),
count > 0 &&
count < int.MaxValue
? count.ToString(CultureInfo.InvariantCulture)
: string.Empty);
if (sequence is byte[] bytes)
{
// dump no more than max elements from the sequence:
writer.Write(BitConverter.ToString(bytes, 0, max));
if (max < bytes.Length)
{
writer.Write(DumpFormat.SequenceDumpTruncated, max, count);
}
return(true);
}
writer.Write(
DumpFormat.SequenceType,
sequenceType.GetTypeName(),
sequenceType.Namespace,
sequenceType.AssemblyQualifiedName);
// stop the recursion if dump.Recurse is false
if (dumpAttribute.RecurseDump != ShouldDump.Skip)
{
var n = 0;
indent();
foreach (var item in sequence)
{
writer.WriteLine();
if (n++ >= max)
{
writer.Write(DumpFormat.SequenceDumpTruncated, max, count);
break;
}
dumpObject(item);
}
unindent();
}
return(true);
}
public static bool DumpedDictionary(
this TextWriter writer,
object sequence,
DumpAttribute dumpAttribute,
Action <object> dumpObject,
Action indent,
Action unindent)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (sequence == null)
{
throw new ArgumentNullException(nameof(sequence));
}
if (dumpAttribute == null)
{
throw new ArgumentNullException(nameof(dumpAttribute));
}
if (dumpObject == null)
{
throw new ArgumentNullException(nameof(dumpObject));
}
if (indent == null)
{
throw new ArgumentNullException(nameof(indent));
}
if (unindent == null)
{
throw new ArgumentNullException(nameof(unindent));
}
var sequenceType = sequence.GetType();
var typeArguments = sequenceType.DictionaryTypeArguments();
if (typeArguments == null)
{
return(false);
}
Debug.Assert(typeArguments.Length == 2);
var keyType = typeArguments[0];
var valueType = typeArguments[1];
int count = 0;
var piCount = sequenceType.GetProperty(nameof(ICollection.Count), BindingFlags.Instance | BindingFlags.Public);
if (piCount != null)
{
count = (int)piCount.GetValue(sequence);
}
var keyValueType = typeof(KeyValuePair <,>).MakeGenericType(keyType, valueType);
writer.Write(
DumpFormat.SequenceTypeName,
sequenceType.GetTypeName(),
count.ToString(CultureInfo.InvariantCulture));
writer.Write(
DumpFormat.SequenceType,
sequenceType.GetTypeName(),
sequenceType.Namespace,
sequenceType.AssemblyQualifiedName);
// stop the recursion if dump.Recurse is false
if (dumpAttribute.RecurseDump == ShouldDump.Skip)
{
return(true);
}
// how many items to dump max?
var max = dumpAttribute.GetMaxToDump(count);
var n = 0;
writer.WriteLine();
writer.Write("{");
indent();
foreach (var kv in (IEnumerable)sequence)
{
Debug.Assert(kv.GetType() == keyValueType);
writer.WriteLine();
if (n++ >= max)
{
writer.Write(DumpFormat.SequenceDumpTruncated, max, count);
break;
}
var key = keyValueType.GetProperty("Key").GetValue(kv, null);
var value = keyValueType.GetProperty("Value").GetValue(kv, null);
writer.Write("[");
dumpObject(key);
writer.Write("] = ");
dumpObject(value);
}
unindent();
writer.WriteLine();
writer.Write("}");
return(true);
}