/// <summary>
/// Gets an object's field value.
/// </summary>
/// <param name="target">Object whose field value to get.</param>
/// <param name="fieldName">The name of the field.</param>
/// <returns>The value of the field.</returns>
public static object GetFieldValue(
object target, string fieldName)
{
DynamicMemberHandle handle = MethodCaller.GetCachedField(target.GetType(), fieldName);
return(handle.DynamicMemberGet.Invoke(target));
}
/// <summary>
/// Sets an object's field with the specified value,
/// coercing that value to the appropriate type if possible.
/// </summary>
/// <param name="target">Object containing the field to set.</param>
/// <param name="fieldName">Name of the field (public or non-public) to set.</param>
/// <param name="value">Value to set into the field.</param>
public static void SetFieldValue(
object target, string fieldName, object value)
{
DynamicMemberHandle handle = MethodCaller.GetCachedField(target.GetType(), fieldName);
SetValueWithCoercion(target, handle, value);
}
/// <summary>
/// Sets an object's property with the specified value,
/// coercing that value to the appropriate type if possible.
/// </summary>
/// <param name="target">Object containing the property to set.</param>
/// <param name="propertyName">Name of the property to set.</param>
/// <param name="value">Value to set into the property.</param>
public static void SetPropertyValue(
object target, string propertyName, object value)
{
DynamicMemberHandle handle = MethodCaller.GetCachedProperty(target.GetType(), propertyName);
SetValueWithCoercion(target, handle, value);
}
private static void SetValueWithCoercion(object target, DynamicMemberHandle handle, object value)
{
var oldValue = handle.DynamicMemberGet(target);
Type pType = handle.MemberType;
#if NETSTANDARD && !NETSTANDARD2_0
var isGeneric = pType.IsGenericType();
var isPrimitive = pType.IsPrimitive();
var isValueType = pType.IsValueType();
#else
var isGeneric = pType.IsGenericType;
var isPrimitive = pType.IsPrimitive;
var isValueType = pType.IsValueType;
#endif
if (!isGeneric ||
(isGeneric && pType.GetGenericTypeDefinition() != typeof(Nullable <>)))
{
if (isValueType && (isPrimitive || pType == typeof(decimal)) && value == null)
{
value = 0;
}
}
if (value != null)
{
Type vType = Utilities.GetPropertyType(value.GetType());
value = Utilities.CoerceValue(pType, vType, oldValue, value);
}
handle.DynamicMemberSet(target, value);
}
private static void SetValueWithCoercion(object target, DynamicMemberHandle handle, object value)
{
var oldValue = handle.DynamicMemberGet(target);
Type pType = handle.MemberType;
if (!pType.IsGenericType ||
(pType.IsGenericType && pType.GetGenericTypeDefinition() != typeof(Nullable <>)))
{
if (pType.IsValueType && (pType.IsPrimitive || pType == typeof(decimal)) && value == null)
{
value = 0;
}
}
if (value != null)
{
Type vType = Utilities.GetPropertyType(value.GetType());
value = Utilities.CoerceValue(pType, vType, oldValue, value);
}
handle.DynamicMemberSet(target, value);
}
public MemberMapping(DynamicMemberHandle fromMemberHandle, DynamicMemberHandle toMemberHandle)
{
FromMemberHandle = fromMemberHandle;
ToMemberHandle = toMemberHandle;
}
