public void Apply(MappingStrategy strategy, MappingStrategyBuildContext context)
{
var directMappingStep = new DirectMappingStep(strategy.Source, strategy.Target);
var converter = context.ApplyConverter(directMappingStep, withFallback: false);
if (converter != null)
{
directMappingStep.Conversion = converter;
strategy.InitTargetStep = directMappingStep;
context.MarkAsCompleted();
}
}
public MappingStrategy BuildMappingStrategy(MappingInfo mappingInfo)
{
var strategy = new MappingStrategy(mappingInfo, descriptor);
//first try to shortcircuit
var directMappingStep = new DirectMappingStep(strategy.Source, strategy.Target);
var converter = ApplyConverter(directMappingStep, withFallback: false);
if (converter != null)
{
directMappingStep.Conversion = converter;
strategy.InitTargetStep = directMappingStep;
return strategy;
}
foreach (var pattern in mappingPatterns)
{
pattern.Contribute(strategy);
}
foreach (var mappingStep in strategy.MappingSteps)
{
mappingStep.Conversion = ApplyConverter(mappingStep, withFallback: true);
}
if (strategy.HasTargetInstance)
{
strategy.InitTargetStep = new SimpleStep(strategy.Target, strategy.Target, (s, _) => Expression.Convert(Expression.Property(s.ContextExpression, MappingContextMeta.TargetInstance), s.Target));
}
else
{
foreach (var mappingStep in strategy.ConstructorParameterMappingSteps.ByKey)
{
if (mappingStep.Value == null)
{
throw new InvalidOperationException(string.Format("No mapping for constructor parameter {0} has been specified. All constructor parameters need value", mappingStep.Key));
}
mappingStep.Value.Conversion = ApplyConverter(mappingStep.Value, withFallback: true);
}
strategy.InitTargetStep = new SimpleStep(strategy.Target, strategy.Target, (s, _) => Expression.New(s.TargetConstructor, GetConstructorParameters(s)));
}
return strategy;
}