private void AutoModifyField(TypeDefinition targetType, MemberActionAttribute fieldActionAttr,
FieldDefinition yourField)
{
Log_modifying_member("field", yourField);
(fieldActionAttr != null).AssertTrue();
var asModifies = fieldActionAttr as ModifiesMemberAttribute;
string targetFieldName = null;
ModificationScope scope;
if (asModifies != null) {
targetFieldName = asModifies.MemberName ?? yourField.Name;
scope = asModifies.Scope;
} else if (fieldActionAttr is NewMemberAttribute) {
targetFieldName = yourField.Name;
scope = ModificationScope.All;
} else {
throw Errors.Unknown_action_attribute(fieldActionAttr);
}
var targetField = targetType.GetField(targetFieldName);
if (targetField == null) {
throw Errors.Missing_member("field", yourField, targetFieldName);
}
if ((scope & ModificationScope.Accessibility) != 0) {
targetField.SetAccessibility(yourField.GetAccessbility());
}
if ((scope & ModificationScope.CustomAttributes) != 0) {
CopyCustomAttributes(targetField, yourField);
}
if ((scope & ModificationScope.Body) != 0) {
targetField.InitialValue = yourField.InitialValue; //dunno what this is used for
targetField.Constant = yourField.Constant;
}
}
private void ModifyField(MemberActionAttribute fieldActionAttr,
FieldDefinition yourField, FieldDefinition targetField)
{
Log_modifying_member("field", yourField);
(fieldActionAttr != null).AssertTrue();
ModificationScope scope = fieldActionAttr.Scope;
if ((scope & ModificationScope.Accessibility) != 0) {
targetField.SetAccessibility(yourField.GetAccessbility());
}
var attrFilter = AttrFilter(scope);
CopyCustomAttributes(targetField, yourField, attrFilter);
if ((scope & ModificationScope.Body) != 0) {
targetField.InitialValue = yourField.InitialValue; //dunno what this is used for
targetField.Constant = yourField.Constant;
targetField.HasConstant = yourField.HasConstant;
}
var toggleAttributesAttr = yourField.GetCustomAttribute<ToggleFieldAttributes>();
var toggleValue = toggleAttributesAttr?.Attributes ?? 0;
targetField.Attributes ^= (FieldAttributes) toggleValue;
}