/// <summary>
/// Create a field base from a fieldinfo object
/// Verify the settings against the actual field to ensure it will work.
/// </summary>
/// <param name="fi">Field Info Object</param>
internal FieldBase(FieldInfo fi)
{
IsNullableType = false;
TrimMode = TrimMode.None;
FieldOrder = null;
InNewLine = false;
NextIsOptional = false;
IsOptional = false;
TrimChars = null;
NullValue = null;
TrailingArray = false;
IsLast = false;
IsFirst = false;
IsArray = false;
CharsToDiscard = 0;
FieldInfo = fi;
FieldType = FieldInfo.FieldType;
if (FieldType.IsArray)
{
FieldTypeInternal = FieldType.GetElementType();
}
else
{
FieldTypeInternal = FieldType;
}
IsStringField = FieldTypeInternal == typeof(string);
object[] attribs = fi.GetCustomAttributes(typeof(FieldConverterAttribute), true);
if (attribs.Length > 0)
{
var conv = (FieldConverterAttribute)attribs[0];
this.Converter = conv.Converter;
conv.ValidateTypes(FieldInfo);
}
else
{
this.Converter = ConvertHelpers.GetDefaultConverter(fi.Name, FieldType);
}
if (this.Converter != null)
{
this.Converter.mDestinationType = FieldTypeInternal;
}
attribs = fi.GetCustomAttributes(typeof(FieldNullValueAttribute), true);
if (attribs.Length > 0)
{
NullValue = ((FieldNullValueAttribute)attribs[0]).NullValue;
// mNullValueOnWrite = ((FieldNullValueAttribute) attribs[0]).NullValueOnWrite;
if (NullValue != null)
{
if (!FieldTypeInternal.IsAssignableFrom(NullValue.GetType()))
{
throw new BadUsageException("The NullValue is of type: " + NullValue.GetType().Name +
" that is not asignable to the field " + FieldInfo.Name + " of type: " +
FieldTypeInternal.Name);
}
}
}
IsNullableType = FieldTypeInternal.IsValueType &&
FieldTypeInternal.IsGenericType &&
FieldTypeInternal.GetGenericTypeDefinition() == typeof(Nullable <>);
}
/// <summary>
/// Create a field base from a fieldinfo object
/// Verify the settings against the actual field to ensure it will work.
/// </summary>
/// <param name="fi">Field Info Object</param>
internal FieldBase(FieldInfo fi)
: this()
{
FieldInfo = fi;
FieldType = FieldInfo.FieldType;
MemberInfo attibuteTarget = fi;
this.FieldFriendlyName = AutoPropertyName(fi);
if (string.IsNullOrEmpty(FieldFriendlyName) == false)
{
var prop = fi.DeclaringType.GetProperty(this.FieldFriendlyName);
if (prop == null)
{
this.FieldFriendlyName = null;
}
else
{
this.IsAutoProperty = true;
attibuteTarget = prop;
}
}
if (FieldType.IsArray)
{
FieldTypeInternal = FieldType.GetElementType();
}
else
{
FieldTypeInternal = FieldType;
}
IsStringField = FieldTypeInternal == typeof(string);
object[] attribs = attibuteTarget.GetCustomAttributes(typeof(FieldConverterAttribute), true);
if (attribs.Length > 0)
{
var conv = (FieldConverterAttribute)attribs[0];
this.Converter = conv.Converter;
conv.ValidateTypes(FieldInfo);
}
else
{
this.Converter = ConvertHelpers.GetDefaultConverter(FieldFriendlyName ?? fi.Name, FieldType);
}
if (this.Converter != null)
{
this.Converter.mDestinationType = FieldTypeInternal;
}
attribs = attibuteTarget.GetCustomAttributes(typeof(FieldNullValueAttribute), true);
if (attribs.Length > 0)
{
NullValue = ((FieldNullValueAttribute)attribs[0]).NullValue;
// mNullValueOnWrite = ((FieldNullValueAttribute) attribs[0]).NullValueOnWrite;
if (NullValue != null)
{
if (!FieldTypeInternal.IsAssignableFrom(NullValue.GetType()))
{
throw new BadUsageException("The NullValue is of type: " + NullValue.GetType().Name +
" that is not asignable to the field " + FieldInfo.Name +
" of type: " +
FieldTypeInternal.Name);
}
}
}
IsNullableType = FieldTypeInternal.IsValueType &&
FieldTypeInternal.IsGenericType &&
FieldTypeInternal.GetGenericTypeDefinition() == typeof(Nullable <>);
}
