private bool TryBuildResolutionConstructor(
ConstructorInformation constructor,
ResolutionContext resolutionContext,
IContainerContext containerContext,
IEnumerable <InjectionParameter> injectionParameters,
out TypeInformation failedParameter,
out Expression[] parameterExpressions,
bool skipUknownResolution = false)
{
var paramLength = constructor.Parameters.Length;
parameterExpressions = new Expression[paramLength];
failedParameter = null;
for (var i = 0; i < paramLength; i++)
{
var parameter = constructor.Parameters[i];
parameterExpressions[i] = containerContext.ResolutionStrategy.BuildResolutionExpression(containerContext,
resolutionContext, parameter, injectionParameters, skipUknownResolution);
if (parameterExpressions[i] == null)
{
failedParameter = parameter;
return(false);
}
}
return(true);
}
public ResolutionConstructor CreateResolutionConstructor(IContainerContext containerContext,
IServiceRegistration serviceRegistration,
ResolutionContext resolutionContext,
ConstructorInformation constructor)
{
var paramLength = constructor.Parameters.Length;
var parameterExpressions = new Expression[paramLength];
for (var i = 0; i < paramLength; i++)
{
var parameter = constructor.Parameters[i];
var expression = containerContext.ResolutionStrategy.BuildResolutionExpression(containerContext,
resolutionContext, parameter, serviceRegistration.RegistrationContext.InjectionParameters);
parameterExpressions[i] = expression ?? throw new ResolutionFailedException(serviceRegistration.ImplementationType,
$"Constructor {constructor.Constructor}, unresolvable parameter: ({parameter.Type}){parameter.ParameterName}");
}
return(new ResolutionConstructor {
Constructor = constructor.Constructor, Parameters = parameterExpressions
});
}
