private void BuildDictionaryToDictionaryPopulationLoop(IObjectMappingData mappingData)
{
var mapperData = mappingData.MapperData;
var loopData = new DictionaryToDictionaryPopulationLoopData(_sourceDictionaryMember, mapperData);
var populationLoop = loopData.BuildPopulationLoop(
mapperData.EnumerablePopulationBuilder,
mappingData,
AssignDictionaryEntryFromKeyValuePair);
_mappingExpressions.Add(populationLoop);
}
private Expression AssignDictionaryEntryFromKeyValuePair(
DictionaryToDictionaryPopulationLoopData loopData,
IObjectMappingData mappingData)
{
var keyVariable = Expression.Variable(_targetDictionaryMember.KeyType, "targetKey");
var keyAccess = Expression.Property(loopData.SourceElement, "Key");
var keyConversion = MapperData.GetValueConversion(keyAccess, keyVariable.Type);
var keyAssignment = keyVariable.AssignTo(keyConversion);
var dictionaryEntryMember = _targetDictionaryMember.Append(keyVariable);
var targetEntryAssignment = AssignDictionaryEntry(loopData, dictionaryEntryMember, mappingData);
return(Expression.Block(new[] { keyVariable }, keyAssignment, targetEntryAssignment));
}
private Expression AssignDictionaryEntryFromKeyValuePair(
DictionaryToDictionaryPopulationLoopData loopData,
IObjectMappingData mappingData)
{
var keyVariable = (ParameterExpression)_wrappedBuilder.GetElementKey();
var keyAccess = Expression.Property(loopData.SourceElement, "Key");
var keyConversion = MapperData.GetValueConversion(keyAccess, keyVariable.Type);
var keyAssignment = keyVariable.AssignTo(keyConversion);
var dictionaryEntryMember = _targetDictionaryMember.Append(keyVariable);
var targetEntryAssignment = AssignDictionaryEntry(loopData, dictionaryEntryMember, mappingData);
if (targetEntryAssignment.NodeType != ExpressionType.Block)
{
return(Expression.Block(new[] { keyVariable }, keyAssignment, targetEntryAssignment));
}
var targetEntryAssignmentBlock = (BlockExpression)targetEntryAssignment;
return(Expression.Block(
targetEntryAssignmentBlock.Variables.Append(keyVariable),
targetEntryAssignmentBlock.Expressions.Prepend(keyAssignment)));
}
