public Expression MapExpression(IGlobalConfiguration configurationProvider, ProfileMap profileMap, MemberMap memberMap,
Expression sourceExpression, Expression destExpression)
{
var sourceType = TypeHelper.GetElementType(sourceExpression.Type);
var destType = TypeHelper.GetElementType(destExpression.Type);
var equivalencyExpression = this.GetEquivalentExpression(sourceType, destType, configurationProvider);
if (equivalencyExpression == null)
{
var typePair = new TypePair(sourceExpression.Type, destExpression.Type);
return(_objectMapperCache.GetOrAdd(typePair, _ =>
{
var mappers = new List <IObjectMapper>(configurationProvider.GetMappers());
for (var i = mappers.IndexOf(this) + 1; i < mappers.Count; i++)
{
var mapper = mappers[i];
if (mapper.IsMatch(typePair))
{
return mapper;
}
}
return _collectionMapper;
})
.MapExpression(configurationProvider, profileMap, memberMap, sourceExpression, destExpression));
}
var method = _mapMethodInfo.MakeGenericMethod(sourceExpression.Type, sourceType, destExpression.Type, destType);
var map = Call(null, method, sourceExpression, destExpression, ContextParameter, Constant(equivalencyExpression));
var notNull = NotEqual(destExpression, Constant(null));
var collectionMapperExpression = _collectionMapper.MapExpression(configurationProvider, profileMap, memberMap, sourceExpression, destExpression);
return(Condition(notNull, map, Convert(collectionMapperExpression, destExpression.Type)));
}
