private static void AddDeclaredSourceTypeMappings(
IEnumerable <DerivedTypePair> derivedTypePairs,
IObjectMappingData declaredTypeMappingData,
ICollection <DerivedTypeMapping> derivedTypeMappings,
out bool declaredTypeHasUnconditionalTypePair)
{
var declaredTypeMapperData = declaredTypeMappingData.MapperData;
foreach (var derivedTypePair in derivedTypePairs)
{
var condition = GetTypePairCondition(derivedTypePair, declaredTypeMapperData);
var derivedTypeMapping = MappingFactory.GetDerivedTypeMapping(
declaredTypeMappingData,
declaredTypeMapperData.SourceObject,
derivedTypePair.DerivedTargetType);
var returnMappingResult = Expression.Return(declaredTypeMapperData.ReturnLabelTarget, derivedTypeMapping);
declaredTypeHasUnconditionalTypePair = (condition == null);
if (declaredTypeHasUnconditionalTypePair)
{
derivedTypeMappings.Add(DerivedTypeMapping.Unconditional(derivedTypePair, returnMappingResult));
return;
}
var ifConditionThenMap = Expression.IfThen(condition, returnMappingResult);
derivedTypeMappings.Add(DerivedTypeMapping.Conditional(derivedTypePair, ifConditionThenMap));
}
declaredTypeHasUnconditionalTypePair = false;
}
private static void AddDerivedSourceTypeMappings(
IEnumerable <Type> derivedSourceTypes,
IObjectMappingData declaredTypeMappingData,
ICollection <ParameterExpression> typedObjectVariables,
ICollection <DerivedTypeMapping> derivedTypeMappings)
{
var declaredTypeMapperData = declaredTypeMappingData.MapperData;
foreach (var derivedSourceType in derivedSourceTypes)
{
var typedVariableName = "source" + derivedSourceType.GetVariableNameInPascalCase();
var typedVariable = Expression.Variable(derivedSourceType, typedVariableName);
var typeAsConversion = Expression.TypeAs(declaredTypeMapperData.SourceObject, derivedSourceType);
var typedVariableAssignment = Expression.Assign(typedVariable, typeAsConversion);
typedObjectVariables.Add(typedVariable);
derivedTypeMappings.Add(typedVariableAssignment);
var targetType = declaredTypeMapperData.TargetType.GetRuntimeTargetType(derivedSourceType);
var condition = typedVariable.GetIsNotDefaultComparison();
condition = AppendTargetValidCheckIfAppropriate(condition, targetType, declaredTypeMapperData);
var derivedTypePairs = GetTypePairsFor(derivedSourceType, targetType, declaredTypeMapperData);
Expression typePairsCondition, ifSourceVariableIsDerivedTypeThenMap;
if (derivedTypePairs.None())
{
ifSourceVariableIsDerivedTypeThenMap = GetIfConditionThenMapExpression(
declaredTypeMappingData,
condition,
typedVariable,
targetType);
derivedTypeMappings.Add(DerivedTypeMapping
.Conditional(derivedSourceType, ifSourceVariableIsDerivedTypeThenMap));
continue;
}
var derivedTargetType = derivedTypePairs[0].DerivedTargetType;
if (derivedTypePairs.All(tp => !tp.HasConfiguredCondition))
{
typePairsCondition = GetTargetValidCheckOrNull(derivedTargetType, declaredTypeMapperData);
if (typePairsCondition == null)
{
ifSourceVariableIsDerivedTypeThenMap = GetIfConditionThenMapExpression(
declaredTypeMappingData,
condition,
typedVariable,
derivedTargetType);
derivedTypeMappings.Add(DerivedTypeMapping
.Conditional(derivedSourceType, ifSourceVariableIsDerivedTypeThenMap));
continue;
}
ifSourceVariableIsDerivedTypeThenMap = GetMapFromConditionOrDefaultExpression(
declaredTypeMappingData,
condition,
typePairsCondition,
typedVariable,
targetType,
derivedTargetType);
derivedTypeMappings.Add(DerivedTypeMapping
.Conditional(derivedSourceType, ifSourceVariableIsDerivedTypeThenMap));
continue;
}
typePairsCondition = GetTypePairsCondition(derivedTypePairs, declaredTypeMapperData);
ifSourceVariableIsDerivedTypeThenMap = GetMapFromConditionOrDefaultExpression(
declaredTypeMappingData,
condition,
typePairsCondition,
typedVariable,
targetType,
derivedTargetType);
derivedTypeMappings.Add(DerivedTypeMapping
.Conditional(derivedSourceType, ifSourceVariableIsDerivedTypeThenMap));
}
}