protected ValueInjectionContext CreateContext(Type[] contextTypes, IMemberMapperData mapperData)
{
var args = new ValueInjectionArgs(_lambda, _configInfo, contextTypes, mapperData);
var context = args.GetAppropriateMappingContext();
return(context);
}
public Expression Inject(Type[] contextTypes, IMemberMapperData mapperData)
{
if (mapperData.MappingDataObject.Type.IsAssignableTo(_contextType))
{
return(_lambda.ReplaceParameterWith(mapperData.MappingDataObject));
}
var args = new ValueInjectionArgs(_lambda, _configInfo, contextTypes, mapperData);
var context = args.GetAppropriateMappingContext();
if (_isMappingContextInvokeLambda)
{
return(args.GetInvocationContextArgument(context));
}
var targetContextTypes = _contextType.GetGenericTypeArguments();
var contextType = context.IsCallback(targetContextTypes) ? _contextType : _contextType.GetAllInterfaces().First();
var requiredValues = GetRequiredValues();
var replacements = FixedSizeExpressionReplacementDictionary
.WithEquivalentKeys(requiredValues.ValuesCount);
if (requiredValues.Includes(Parent))
{
replacements.Add(PropertyAccess(nameof(Parent), contextType), context.GetParentAccess());
}
if (requiredValues.Includes(Source))
{
replacements.Add(PropertyAccess(RootSourceMemberName, contextType), context.GetSourceAccess());
}
if (requiredValues.Includes(Target))
{
replacements.Add(PropertyAccess(RootTargetMemberName, contextType), context.GetTargetAccess());
}
if (requiredValues.Includes(CreatedObject))
{
replacements.Add(PropertyAccess(nameof(CreatedObject), contextType), context.GetCreatedObject());
}
if (requiredValues.Includes(ElementIndex))
{
replacements.Add(PropertyAccess(nameof(ElementIndex), contextType), context.GetElementIndex());
}
if (requiredValues.Includes(ElementKey))
{
replacements.Add(PropertyAccess(nameof(ElementKey), contextType), context.GetElementKey());
}
return(_lambda.Body.Replace(replacements));
}