private static Func <IObjectMappingDataFactoryBridge, TSource, TTarget, int?, object, object, object, object, object> GetPartialTrustMappingDataCreator <TSource, TTarget>(
MappingTypes mappingTypes)
{
var createCallerKey = DeclaredAndRuntimeTypesKey.For <TSource, TTarget>(mappingTypes);
var createCallerFunc = GlobalContext.Instance.Cache.GetOrAdd(createCallerKey, k =>
{
var bridgeParameter = Expression.Parameter(typeof(IObjectMappingDataFactoryBridge), "bridge");
var sourceParameter = Parameters.Create(k.DeclaredSourceType, "source");
var targetParameter = Parameters.Create(k.DeclaredTargetType, "target");
var elementIndexParameter = Expression.Parameter(typeof(int?), "i");
var elementKeyParameter = Expression.Parameter(typeof(object), "key");
var mappingTypesParameter = Expression.Parameter(typeof(object), "mappingTypes");
var mappingContextParameter = Expression.Parameter(typeof(object), "mappingContext");
var parentParameter = Expression.Parameter(typeof(object), "parent");
var createMethod = bridgeParameter.Type
.GetPublicInstanceMethod("CreateMappingData")
.MakeGenericMethod(
k.DeclaredSourceType,
k.DeclaredTargetType,
k.RuntimeSourceType,
k.RuntimeTargetType);
var createCall = Expression.Call(
bridgeParameter,
createMethod,
sourceParameter,
targetParameter,
elementIndexParameter,
elementKeyParameter,
mappingTypesParameter,
mappingContextParameter,
parentParameter);
var createLambda = Expression
.Lambda <Func <IObjectMappingDataFactoryBridge, TSource, TTarget, int?, object, object, object, object, object> >(
createCall,
bridgeParameter,
sourceParameter,
targetParameter,
elementIndexParameter,
elementKeyParameter,
mappingTypesParameter,
mappingContextParameter,
parentParameter);
return(createLambda.Compile());
});
return(createCallerFunc);
}
private static MappingDataCreator <TSource, TTarget> GetMappingDataCreator <TSource, TTarget>(
MappingTypes mappingTypes)
{
var constructorKey = DeclaredAndRuntimeTypesKey.For <TSource, TTarget>(mappingTypes);
var constructionFunc = GlobalContext.Instance.Cache.GetOrAdd(constructorKey, k =>
{
var elementIndexParameter = Expression.Parameter(typeof(int?), "i");
var elementKeyParameter = Expression.Parameter(typeof(object), "key");
var mappingTypesParameter = typeof(MappingTypes).GetOrCreateParameter("mappingTypes");
var mappingContextParameter = typeof(IMappingContext).GetOrCreateParameter("mappingContext");
var mappingDataParameter = typeof(IObjectMappingData).GetOrCreateParameter("mappingData");
var dataType = typeof(ObjectMappingData <,>)
.MakeGenericType(k.RuntimeSourceType, k.RuntimeTargetType);
var sourceParameter = Parameters.Create(k.DeclaredSourceType, "source");
var targetParameter = Parameters.Create(k.DeclaredTargetType, "target");
var targetParameterValue = TypeExtensionsPolyfill.IsValueType(k.RuntimeTargetType) && k.DeclaredTargetType.CanBeNull()
? Expression.Coalesce(targetParameter, k.RuntimeTargetType.ToDefaultExpression())
: (Expression)targetParameter;
var constructorCall = Expression.New(
dataType.GetPublicInstanceConstructors().First(),
sourceParameter.GetConversionTo(k.RuntimeSourceType),
targetParameterValue.GetConversionTo(k.RuntimeTargetType),
elementIndexParameter,
elementKeyParameter,
mappingTypesParameter,
mappingContextParameter,
mappingDataParameter,
true.ToConstantExpression()); // <- createMapper
var constructionLambda = Expression.Lambda <MappingDataCreator <TSource, TTarget> >(
constructorCall,
sourceParameter,
targetParameter,
elementIndexParameter,
elementKeyParameter,
mappingTypesParameter,
mappingContextParameter,
mappingDataParameter);
return(constructionLambda.Compile());
});
return(constructionFunc);
}
private static MappingDataCreator <TSource, TTarget> GetMappingDataCreator <TSource, TTarget>(
MappingTypes mappingTypes)
{
var constructorKey = DeclaredAndRuntimeTypesKey.For <TSource, TTarget>(mappingTypes);
// TODO: Local cache
var constructionFunc = GlobalContext.Instance.Cache.GetOrAdd(constructorKey, k =>
{
var mapperKeyParameter = Expression.Parameter(typeof(ObjectMapperKeyBase), "mapperKey");
var enumerableIndexParameter = Expression.Parameter(typeof(int?), "i");
var dataType = typeof(ObjectMappingData <,>)
.MakeGenericType(k.RuntimeSourceType, k.RuntimeTargetType);
var sourceParameter = Parameters.Create(k.DeclaredSourceType, "source");
var targetParameter = Parameters.Create(k.DeclaredTargetType, "target");
var constructorCall = Expression.New(
dataType.GetPublicInstanceConstructors().First(),
sourceParameter.GetConversionTo(k.RuntimeSourceType),
targetParameter.GetConversionTo(k.RuntimeTargetType),
enumerableIndexParameter,
mapperKeyParameter,
Parameters.MappingContext,
Parameters.ObjectMappingData);
var constructionLambda = Expression.Lambda <MappingDataCreator <TSource, TTarget> >(
constructorCall,
sourceParameter,
targetParameter,
enumerableIndexParameter,
mapperKeyParameter,
Parameters.MappingContext,
Parameters.ObjectMappingData);
return(constructionLambda.Compile());
});
return(constructionFunc);
}
