private static Action <object, T> FieldOrPropertySetter <T>(Type type, string fieldName)
{
Action <object, T> Searcher(Type innerType)
{
Expression <Action <object, T> > setter;
var fieldInfo = innerType.GetField(fieldName, AccessTools.all);
if (fieldInfo != null)
{
setter = (obj, val) => fieldInfo.SetValue(obj, val);
return(setter.Compile());
}
var propertyInfo = innerType.GetProperty(fieldName, AccessTools.all);
if (propertyInfo != null)
{
setter = (obj, val) => propertyInfo.SetValue(obj, val, NoArgs);
return(setter.Compile());
}
return(null);
}
var result = AccessTools.FindIncludingBaseTypes(type, Searcher);
if (result != null)
{
return(result);
}
throw new ArgumentException(
$"Unable to find a field or property setter named {fieldName} on {type.GetPrettyTypeName()}");
}
private static Func <object, T> FieldOrPropertyGetter <T>(Type type, string fieldName)
{
Func <object, T> Searcher(Type innerType)
{
Expression <Func <object, T> > getter = null;
var fieldInfo = innerType.GetField(fieldName, AccessTools.all);
if (fieldInfo != null)
{
getter = obj => (T)fieldInfo.GetValue(obj);
return(getter.Compile());
}
var propertyInfo = innerType.GetProperty(fieldName, AccessTools.all);
if (propertyInfo != null)
{
getter = obj => (T)propertyInfo.GetValue(obj, NoArgs);
return(getter.Compile());
}
return(null);
}
var result = AccessTools.FindIncludingBaseTypes(type, Searcher);
if (result != null)
{
return(result);
}
throw new ArgumentException(
$"Unable to find a field or property getter named {fieldName} on {type.GetPrettyTypeName()}");
}