private void AddDerivedSourceTypePopulations(
IPopulationLoopData loopData,
QualifiedMember dictionaryEntryMember,
IObjectMappingData mappingData,
IEnumerable <Type> derivedSourceTypes,
ICollection <ParameterExpression> typedVariables,
ICollection <Expression> mappingExpressions)
{
var sourceElement = loopData.GetSourceElementValue();
var mapNextElement = Expression.Continue(loopData.ContinueLoopTarget);
var orderedDerivedSourceTypes = derivedSourceTypes
.OrderBy(t => t, TypeComparer.MostToLeastDerived);
foreach (var derivedSourceType in orderedDerivedSourceTypes)
{
var derivedSourceCheck = new DerivedSourceTypeCheck(derivedSourceType);
var typedVariableAssignment = derivedSourceCheck.GetTypedVariableAssignment(sourceElement);
typedVariables.Add(derivedSourceCheck.TypedVariable);
mappingExpressions.Add(typedVariableAssignment);
var derivedTypeMapping = GetDerivedTypeMapping(derivedSourceCheck, mappingData);
var derivedTypePopulation = GetPopulation(derivedTypeMapping, dictionaryEntryMember, mappingData);
var incrementCounter = _wrappedBuilder.GetCounterIncrement();
var derivedMappingBlock = Expression.Block(derivedTypePopulation, incrementCounter, mapNextElement);
var ifDerivedTypeReturn = Expression.IfThen(derivedSourceCheck.TypeCheck, derivedMappingBlock);
mappingExpressions.Add(ifDerivedTypeReturn);
}
}
private static IDataSource GetMapFromConditionOrDefaultDataSource(
IObjectMappingData declaredTypeMappingData,
Expression condition,
DerivedSourceTypeCheck derivedSourceCheck,
IEnumerable <TypePairGroup> typePairGroups,
Type targetType)
{
var declaredTypeMapperData = declaredTypeMappingData.MapperData;
var typePairDataSources = new List <IDataSource>();
Expression derivedTypeMapping;
IObjectMappingData derivedTypeMappingData;
foreach (var typePairGroup in typePairGroups)
{
var typePairsCondition =
declaredTypeMapperData.GetTypePairsCondition(typePairGroup.TypePairs) ??
declaredTypeMapperData.GetTargetValidCheckOrNull(typePairGroup.DerivedTargetType);
derivedTypeMapping = GetReturnMappingResultExpression(
declaredTypeMappingData,
derivedSourceCheck.TypedVariable,
typePairGroup.DerivedTargetType,
out derivedTypeMappingData);
var typePairDataSource = new DerivedComplexTypeDataSource(
derivedTypeMappingData.MapperData.SourceMember,
typePairsCondition,
derivedTypeMapping);
typePairDataSources.Add(typePairDataSource);
}
var derivedTargetTypeDataSources = DataSourceSet.For(
typePairDataSources,
declaredTypeMapperData,
ValueExpressionBuilders.ValueSequence);
derivedTypeMapping = GetReturnMappingResultExpression(
declaredTypeMappingData,
derivedSourceCheck.TypedVariable,
targetType,
out derivedTypeMappingData);
var derivedTypeMappings = Block(
derivedTargetTypeDataSources.BuildValue(),
derivedTypeMapping);
return(new DerivedComplexTypeDataSource(
derivedTypeMappingData.MapperData.SourceMember,
derivedSourceCheck,
condition,
derivedTypeMappings,
declaredTypeMapperData));
}
public DerivedComplexTypeDataSource(
IQualifiedMember sourceMember,
DerivedSourceTypeCheck derivedSourceCheck,
Expression condition,
Expression value,
IMemberMapperData declaredTypeMapperData)
: base(sourceMember, new[] { derivedSourceCheck.TypedVariable }, value, condition)
{
_typedVariableAssignment = derivedSourceCheck
.GetTypedVariableAssignment(declaredTypeMapperData);
}
private static Expression GetDerivedTypeMapping(
DerivedSourceTypeCheck derivedSourceCheck,
IObjectMappingData mappingData)
{
var mappingTryCatch = DerivedMappingFactory.GetDerivedTypeMapping(
mappingData,
derivedSourceCheck.TypedVariable,
mappingData.MapperData.TargetType);
return(mappingTryCatch);
}
private static IDataSource GetReturnMappingResultDataSource(
IObjectMappingData declaredTypeMappingData,
Expression condition,
DerivedSourceTypeCheck derivedSourceCheck,
Type targetType)
{
var derivedTypeMapping = GetReturnMappingResultExpression(
declaredTypeMappingData,
derivedSourceCheck.TypedVariable,
targetType,
out var derivedTypeMappingData);
return(new DerivedComplexTypeDataSource(
derivedTypeMappingData.MapperData.SourceMember,
derivedSourceCheck,
condition,
derivedTypeMapping,
declaredTypeMappingData.MapperData));
}
private static void AddDerivedSourceTypeDataSources(
IEnumerable <Type> derivedSourceTypes,
IObjectMappingData declaredTypeMappingData,
IList <IDataSource> derivedTypeDataSources)
{
var declaredTypeMapperData = declaredTypeMappingData.MapperData;
var insertionOffset = derivedTypeDataSources.Count;
var orderedDerivedSourceTypes = derivedSourceTypes
.OrderBy(t => t, MostToLeastDerived);
foreach (var derivedSourceType in orderedDerivedSourceTypes)
{
var derivedSourceCheck = new DerivedSourceTypeCheck(derivedSourceType);
var targetType = declaredTypeMapperData.TargetType.GetRuntimeTargetType(derivedSourceType);
var outerCondition = derivedSourceCheck.TypeCheck;
outerCondition = AppendTargetValidCheckIfAppropriate(outerCondition, targetType, declaredTypeMapperData);
var derivedTypePairs = GetTypePairsFor(derivedSourceType, targetType, declaredTypeMapperData);
IDataSource sourceVariableIsDerivedTypeDataSource;
if (derivedTypePairs.None())
{
sourceVariableIsDerivedTypeDataSource = GetReturnMappingResultDataSource(
declaredTypeMappingData,
outerCondition,
derivedSourceCheck,
targetType);
derivedTypeDataSources.Insert(sourceVariableIsDerivedTypeDataSource, insertionOffset);
continue;
}
var hasUnconditionalDerivedTargetTypeMapping = HasUnconditionalDerivedTargetTypeMapping(
derivedTypePairs,
declaredTypeMapperData,
out var unconditionalDerivedTargetType,
out var groupedTypePairs);
if (hasUnconditionalDerivedTargetTypeMapping)
{
sourceVariableIsDerivedTypeDataSource = GetReturnMappingResultDataSource(
declaredTypeMappingData,
outerCondition,
derivedSourceCheck,
unconditionalDerivedTargetType);
derivedTypeDataSources.Insert(sourceVariableIsDerivedTypeDataSource, insertionOffset);
continue;
}
sourceVariableIsDerivedTypeDataSource = GetMapFromConditionOrDefaultDataSource(
declaredTypeMappingData,
outerCondition,
derivedSourceCheck,
groupedTypePairs,
targetType);
derivedTypeDataSources.Insert(sourceVariableIsDerivedTypeDataSource, insertionOffset);
}
}
