public MultiValueParseResult Parse(
Type valueType,
IReadOnlyList <string> stringValues,
SingleValuePolicy singleValuePolicy = SingleValuePolicy.UseFirstValue,
Type valueParserType = null,
IFormatProvider formatProvider = null)
{
if (valueType == null)
{
throw new ArgumentNullException(nameof(valueType));
}
if (stringValues == null)
{
throw new ArgumentNullException(nameof(stringValues));
}
if (stringValues.Count == 0)
{
throw new ArgumentOutOfRangeException(nameof(stringValues));
}
bool isCollection = _collectionCtorProvider.TryGetConstructor(valueType, out ICollectionConstructor colCtor);
if (isCollection)
{
var elemType = colCtor.GetElementType(valueType);
valueType = elemType.UnwrapIfNullable();
var valueParser = _valueParserProvider.GetParser(valueType, valueParserType);
int valuesCount = stringValues.Count;
object[] values = new object[valuesCount];
for (int i = 0; i < valuesCount; i++)
{
values[i] = valueParser.Parse(stringValues[i], valueType, formatProvider);
}
var collection = colCtor.Construct(elemType, values);
return(new MultiValueParseResult(collection, valuesCount));
}
else
{
valueType = valueType.UnwrapIfNullable();
var valueParser = _valueParserProvider.GetParser(valueType, valueParserType);
string stringValue = GetSingleValue(stringValues, singleValuePolicy, out var valuesUsed);
var value = valueParser.Parse(stringValue, valueType, formatProvider);
return(new MultiValueParseResult(value, valuesUsed));
}
}
public KeyValuePairParser(Type keyValueType, IValueParserProvider valueParserProvider)
{
if (valueParserProvider == null)
{
throw new ArgumentNullException(nameof(valueParserProvider));
}
_keyValueType = keyValueType ?? throw new ArgumentNullException(nameof(keyValueType));
if (!IsParameterizedKeyValuePair(keyValueType))
{
throw new ArgumentException(
"Value type must be a parameterized KeyValuePair<TKey, TValye> type.",
nameof(keyValueType));
}
_keyType = keyValueType.GenericTypeArguments[0];
_valueType = keyValueType.GenericTypeArguments[1];
_keyParser = valueParserProvider.GetParser(_keyType, parserType: null);
_valueParser = valueParserProvider.GetParser(_valueType, parserType: null);
}
