public override IEnumerable<ZenjectResolveException> ValidateBinding(Type contractType, InjectContext context)
{
if (_creator.HasInstance())
{
// This would be the case if given an instance at binding time with ToSingle(instance)
return Enumerable.Empty<ZenjectResolveException>();
}
return BindingValidator.ValidateObjectGraph(_container, GetInstanceType());
}
public override object GetInstance(Type contractType, InjectContext context)
{
if (_instantiator == null)
{
_instantiator = _container.Resolve<Instantiator>();
}
var obj = _instantiator.Instantiate(GetTypeToInstantiate(contractType));
Assert.That(obj != null);
return obj;
}
public override object GetInstance(Type contractType, InjectContext context)
{
return _creator.GetInstance(contractType);
}
public override IEnumerable<ZenjectResolveException> ValidateBinding(Type contractType, InjectContext context)
{
return BindingValidator.ValidateObjectGraph(_container, _concreteType);
}
public bool Matches(InjectContext context)
{
// Identifier will be null most of the time
return IdentifiersMatch(context.Identifier) && _condition(context);
}
public override object GetInstance(Type contractType, InjectContext context)
{
// _instance == null during validation sometimes
Assert.That(_instance == null || _instance.GetType().DerivesFromOrEqual(contractType));
return _instance;
}
public override object GetInstance(Type contractType, InjectContext context)
{
return _container.Resolve(contractType, context);
}
public static IEnumerable<ZenjectResolveException> ValidateContract(
DiContainer container, Type contractType, InjectContext context)
{
return ValidateContract(container, contractType, context, false);
}
public List <TContract> ResolveMany <TContract>(InjectContext context)
{
return((List <TContract>)ResolveMany(typeof(TContract), context));
}
// Walk the object graph for the given type
// Returns all ZenjectResolveExceptions found
public IEnumerable <ZenjectResolveException> ValidateResolve(Type contractType, InjectContext context)
{
return(BindingValidator.ValidateContract(this, contractType, context));
}
public IEnumerable <ZenjectResolveException> ValidateResolve <TContract>(InjectContext context)
{
return(ValidateResolve(typeof(TContract), context));
}
public override IEnumerable <ZenjectResolveException> ValidateBinding(Type contractType, InjectContext context)
{
return(BindingValidator.ValidateObjectGraph(_container, typeof(T)));
}
public override object GetInstance(Type contractType, InjectContext context)
{
Assert.That(typeof(T).DerivesFromOrEqual(contractType));
return(Instantiator.Instantiate <T>(_template));
}
public abstract IEnumerable<ZenjectResolveException> ValidateBinding(Type contractType, InjectContext context);
public abstract object GetInstance(Type contractType, InjectContext context);
// Wrap IEnumerable<> to avoid LINQ mistakes
internal List <ProviderBase> GetProviderMatches(Type contractType, InjectContext context)
{
return(GetProviderMatches(contractType, context, false));
}
public static IEnumerable<ZenjectResolveException> ValidateObjectGraph(
DiContainer container, Type concreteType, params Type[] extras)
{
using (container.PushLookup(concreteType))
{
var typeInfo = TypeAnalyzer.GetInfo(concreteType);
var extrasList = extras.ToList();
foreach (var dependInfo in typeInfo.AllInjectables)
{
Assert.IsEqual(dependInfo.EnclosingType, concreteType);
if (TryTakingFromExtras(dependInfo.ContractType, extrasList))
{
continue;
}
var context = new InjectContext(
dependInfo, DiContainer.LookupsInProgress.ToList(), null);
foreach (var error in ValidateContract(
container, dependInfo.ContractType, context, dependInfo.Optional))
{
yield return error;
}
}
if (!extrasList.IsEmpty())
{
yield return new ZenjectResolveException(
"Found unnecessary extra parameters passed when injecting into '{0}' with types '{1}'. \nObject graph:\n{2}"
.With(concreteType.Name(), String.Join(",", extrasList.Select(x => x.Name()).ToArray()), DiContainer.GetCurrentObjectGraph()));
}
}
}
// Wrap IEnumerable<> to avoid LINQ mistakes
internal List <ProviderBase> GetProviderMatches(
Type contractType, InjectContext context, bool soft)
{
return(GetProviderMatchesInternal(contractType, context, soft).ToList());
}
public static IEnumerable<ZenjectResolveException> ValidateContract(
DiContainer container, Type contractType, InjectContext context, bool isOptional)
{
var matches = container.GetProviderMatches(contractType, context);
if (matches.IsLength(1))
{
foreach (var error in matches.Single().ValidateBinding(contractType, context))
{
yield return error;
}
}
else
{
if (ReflectionUtil.IsGenericList(contractType))
{
var subType = contractType.GetGenericArguments().Single();
matches = container.GetProviderMatches(subType, context);
if (matches.IsEmpty())
{
if (!isOptional)
{
if (container.FallbackProvider != null)
{
foreach (var error in container.FallbackProvider.ValidateBinding(contractType, context))
{
yield return error;
}
}
else
{
yield return new ZenjectResolveException(
"Could not find dependency with type 'List<{0}>'{1}. If the empty list is also valid, you can allow this by using the [InjectOptional] attribute.' \nObject graph:\n{2}"
.With(
subType.Name(),
(context.EnclosingType == null ? "" : " when injecting into '{0}'".With(context.EnclosingType.Name())),
DiContainer.GetCurrentObjectGraph()));
}
}
}
else
{
foreach (var match in matches)
{
foreach (var error in match.ValidateBinding(contractType, context))
{
yield return error;
}
}
}
}
else
{
if (!isOptional)
{
if (matches.IsEmpty())
{
if (container.FallbackProvider != null)
{
foreach (var error in container.FallbackProvider.ValidateBinding(contractType, context))
{
yield return error;
}
}
else
{
yield return new ZenjectResolveException(
"Could not find required dependency with type '{0}'{1} \nObject graph:\n{2}"
.With(
contractType.Name(),
(context.EnclosingType == null ? "" : " when injecting into '{0}'".With(context.EnclosingType.Name())),
DiContainer.GetCurrentObjectGraph()));
}
}
else
{
yield return new ZenjectResolveException(
"Found multiple matches when only one was expected for dependency with type '{0}'{1} \nObject graph:\n{2}"
.With(
contractType.Name(),
(context.EnclosingType == null ? "" : " when injecting into '{0}'".With(context.EnclosingType.Name())),
DiContainer.GetCurrentObjectGraph()));
}
}
}
}
}
public object ResolveMany(Type contract, InjectContext context)
{
// Soft == false, always create new instances when possible
return(ResolveMany(contract, context, false));
}
public override IEnumerable<ZenjectResolveException> ValidateBinding(Type contractType, InjectContext context)
{
return _container.ValidateResolve(contractType);
}
public TContract Resolve <TContract>(InjectContext context)
{
return((TContract)Resolve(typeof(TContract), context));
}
public override IEnumerable<ZenjectResolveException> ValidateBinding(Type contractType, InjectContext context)
{
return Enumerable.Empty<ZenjectResolveException>();
}
// Be careful with this method since it is a coroutine
IEnumerable <ProviderBase> GetProviderMatchesInternal(
Type contractType, InjectContext context)
{
return(GetProvidersForContract(contractType).Where(x => x.Matches(context)));
}