/// <summary>
/// Gets or sets the <see cref="System.Object"/> with the specified key.
/// </summary>
/// <value>
/// The <see cref="System.Object"/>.
/// </value>
/// <param name="key">The key.</param>
/// <returns></returns>
public object this[string key]
{
get
{
if (this._keyedValues.TryGetValue(key, out object result))
{
return(result);
}
var concreteDtoMetadata = metadataByDerivedType[this.GetType()];
if (concreteDtoMetadata
.ReservedPropertyInfoByReservedKey
.TryGetValue(key, out PropertyInfo reservedPropertyInfo))
{
//if we have matching reserved property of value type - return default for it:
if (reservedPropertyInfo.PropertyType.IsValueType)
{
return(Activator.CreateInstance(reservedPropertyInfo.PropertyType));
}
}
return(null);
}
set
{
Assumption.AssertTrue(
!this._keyedValues.ContainsKey(key) || // no such key preset yet
this._keyedValues[key] == null || // OR its not initialized yet
value != null || // OR no-null value
!this._metadata.ReservedPropertyInfoByReservedKey.Keys.Contains(key), // OR not about reserved property/key
"conditional " + nameof(value) + " assessment"
);
//
var concreteDtoMetadata = metadataByDerivedType[this.GetType()];
if (concreteDtoMetadata
.ReservedPropertyInfoByReservedKey
.TryGetValue(key, out PropertyInfo reservedPropertyInfo))
{
var reservedPropertyType = reservedPropertyInfo.PropertyType;
var valueType = value?.GetType();
Assumption.AssertTrue(
//we are not dealing with a reserved property, hence, anything works:
!concreteDtoMetadata.ReservedPropertyInfoByReservedKey.ContainsKey(key)
//OR we are dealing with a reserved property and the value and its type should make sense:
|| value == null ||
reservedPropertyType == valueType ||
(reservedPropertyType.IsInterface &&
ReflectionUtility.DoesTypeImplementInterface(valueType, reservedPropertyType)) ||
(reservedPropertyType.IsGenericType && // dealing with nullable type
reservedPropertyType.GenericTypeArguments.Length == 1 &&
reservedPropertyType.GenericTypeArguments[0] == valueType) ||
valueType.IsSubclassOf(reservedPropertyType),
nameof(value)
);
}
//
this._keyedValues[key] = value;
}
}
public void TestDoesTypeImplementInterface()
{
var observedType = typeof(RollbarPackageBase);
var interfaceOfInterest = typeof(IRollbarPackage);
var result =
ReflectionUtility.DoesTypeImplementInterface(
observedType,
interfaceOfInterest
);
Assert.IsTrue(result);
}
public object?this[string key]
{
get
{
if (this._keyedValues.TryGetValue(key, out var result))
{
return(result);
}
var concreteDtoMetadata = metadataByDerivedType[this.GetType()];
if (concreteDtoMetadata.ReservedPropertyInfoByReservedKey == null)
{
return(null);
}
if (concreteDtoMetadata
.ReservedPropertyInfoByReservedKey
.TryGetValue(key, out var reservedPropertyInfo) &&
reservedPropertyInfo.PropertyType.IsValueType
)
{
return(Activator.CreateInstance(reservedPropertyInfo.PropertyType));
}
return(null);
}
set
{
bool isReservedProperty =
this._metadata?.ReservedPropertyInfoByReservedKey?.Keys.Contains(key)
?? false;
Assumption.AssertTrue(
!this._keyedValues.ContainsKey(key) || // no such key preset yet
this._keyedValues[key] == null || // OR its not initialized yet
value != null || // OR no-null value
!isReservedProperty, // OR not about reserved property/key
"conditional " + nameof(value) + " assessment"
);
var lowCaseKey = key.ToLower();
var concreteDtoMetadata = metadataByDerivedType[this.GetType()];
if (concreteDtoMetadata.ReservedPropertyInfoByReservedKey != null &&
concreteDtoMetadata
.ReservedPropertyInfoByReservedKey
.TryGetValue(key, out PropertyInfo? reservedPropertyInfo))
{
var reservedPropertyType = reservedPropertyInfo.PropertyType;
var valueType = value?.GetType();
if (valueType != null)
{
Assumption.AssertTrue(
//we are not dealing with a reserved property, hence, anything works:
!(concreteDtoMetadata.ReservedPropertyInfoByReservedKey.ContainsKey(key) || concreteDtoMetadata.ReservedPropertyInfoByReservedKey.ContainsKey(lowCaseKey))
//OR we are dealing with a reserved property and the value and its type should make sense:
|| value == null ||
reservedPropertyType == valueType ||
(reservedPropertyType.IsInterface &&
ReflectionUtility.DoesTypeImplementInterface(valueType, reservedPropertyType)) ||
(reservedPropertyType.IsGenericType && // dealing with nullable type
reservedPropertyType.GenericTypeArguments.Length == 1 &&
reservedPropertyType.GenericTypeArguments[0] == valueType) ||
valueType.IsSubclassOf(reservedPropertyType),
nameof(value)
);
}
}
if (concreteDtoMetadata.ReservedPropertyInfoByReservedKey != null &&
concreteDtoMetadata.ReservedPropertyInfoByReservedKey.ContainsKey(lowCaseKey))
{
// we are setting a reserved key when calling Bind(...) on an IConfigurationSection
// that treats this instance of ExtendableDtoBase as a dictionary while binding to the targeted deserialization object:
this._keyedValues[lowCaseKey] = value;
}
else
{
this._keyedValues[key] = value;
}
}
}