private static bool FindTypeInjections(Type t, out TypeInjections result)
{
result = new TypeInjections();
using (var fields = ListPool <FieldInfo> .Get())
using (var injectFields = ListPool <FieldInfo> .Get())
{
t.GetFieldsIncludingBaseTypes(fields,
BindingFlags.Instance
| BindingFlags.Public
| BindingFlags.NonPublic);
foreach (var f in fields)
{
var fAttrs = f.GetCustomAttributes(true);
foreach (var a in fAttrs)
{
if (!typeof(InjectAttribute).IsAssignableFrom(a.GetType()))
{
continue;
}
injectFields.Add(f);
}
}
result.fields = injectFields.Count > 0 ? injectFields.ToArray() : EMPTY_FIELDS;
}
using (var props = ListPool <PropertyInfo> .Get())
using (var injectProps = ListPool <PropertyInfo> .Get())
{
t.GetPropertiesIncludingBaseTypes(props, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
foreach (var p in props)
{
var pAttrs = p.GetCustomAttributes(true);
foreach (var a in pAttrs)
{
if (!typeof(InjectAttribute).IsAssignableFrom(a.GetType()))
{
continue;
}
injectProps.Add(p);
}
}
result.properties = injectProps.Count > 0 ? injectProps.ToArray() : EMPTY_PROPS;
}
return(result.fields.Length > 0 || result.properties.Length > 0);
}
public static bool On(object instance)
{
var instType = instance.GetType();
TypeInjections typeInjections = GetTypeInjections(instType);
var eventHandler = instance as DependencyInjectionEventHandler;
var willInjectEventSent = false;
if (typeInjections.fields != null && typeInjections.fields.Length > 0)
{
foreach (var f in typeInjections.fields)
{
if (f.GetValue(instance) != null)
{ // don't overwrite if already set
continue;
}
if (!(Services.exists && Services.Get.hasInit))
{
InjectOnServicesInit(instance);
return(false);
}
if (eventHandler != null && !willInjectEventSent)
{
eventHandler.OnWillInjectDependencies();
willInjectEventSent = true;
}
var v = Services.Get.GetService(f.FieldType);
if (v == null)
{
#if UNITY_EDITOR || DEBUG_UNSTRIP
Debug.LogError("[" + Time.frameCount + "] service not registered for type " + f.FieldType
+ " marked for injection by type " + instType);
#endif
continue;
}
f.SetValue(instance, v);
}
}
if (typeInjections.properties != null && typeInjections.properties.Length > 0)
{
foreach (var p in typeInjections.properties)
{
if (p.GetValue(instance, null) != null)
{ // don't overwrite if already set
continue;
}
if (!(Services.exists && Services.Get.hasInit))
{
InjectOnServicesInit(instance);
return(false);
}
if (eventHandler != null && !willInjectEventSent)
{
eventHandler.OnWillInjectDependencies();
willInjectEventSent = true;
}
var v = Services.Get.GetService(p.PropertyType);
if (v == null)
{
#if UNITY_EDITOR || DEBUG_UNSTRIP
Debug.LogError("[" + Time.frameCount + "] service not registered for type " + p.PropertyType
+ " marked for injection by type " + instType);
#endif
continue;
}
p.SetValue(instance, v, null);
}
}
if (eventHandler != null)
{
eventHandler.OnDidInjectDependencies();
}
return(true);
}
