private LambdaExpression GenerateObjectMapperExpression(MapRequest mapRequest, IObjectMapper mapperToUse)
{
var destinationType = mapRequest.RequestedTypes.DestinationType;
var source = Parameter(mapRequest.RequestedTypes.SourceType, "source");
var destination = Parameter(destinationType, "mapperDestination");
var context = Parameter(typeof(ResolutionContext), "context");
Expression fullExpression;
if (mapperToUse == null)
{
var message = Constant("Missing type map configuration or unsupported mapping.");
fullExpression = Block(Throw(New(ExceptionConstructor, message, Constant(null, typeof(Exception)), Constant(mapRequest.RequestedTypes))), Default(destinationType));
}
else
{
var map = mapperToUse.MapExpression(this, Configuration, mapRequest.PropertyMap,
ToType(source, mapRequest.RuntimeTypes.SourceType),
ToType(destination, mapRequest.RuntimeTypes.DestinationType),
context);
var exception = Parameter(typeof(Exception), "ex");
fullExpression =
TryCatch(ToType(map, destinationType),
MakeCatchBlock(typeof(Exception), exception, Block(
Throw(New(ExceptionConstructor, Constant("Error mapping types."), exception, Constant(mapRequest.RequestedTypes))),
Default(destination.Type)), null));
}
var profileMap = mapRequest.PropertyMap?.TypeMap?.Profile ?? Configuration;
var nullCheckSource = NullCheckSource(profileMap, source, destination, fullExpression, mapRequest.PropertyMap);
return(Lambda(nullCheckSource, source, destination, context));
}
private static LambdaExpression GenerateObjectMapperExpression(MapRequest mapRequest, IObjectMapper mapperToUse, MapperConfiguration mapperConfiguration)
{
var destinationType = mapRequest.RequestedTypes.DestinationType;
var source = Parameter(mapRequest.RequestedTypes.SourceType, "source");
var destination = Parameter(destinationType, "destination");
var context = Parameter(typeof(ResolutionContext), "context");
var ctor = ((NewExpression)ResolutionContextCtor.Body).Constructor;
LambdaExpression fullExpression;
if (mapperToUse == null)
{
var message = Constant("Missing type map configuration or unsupported mapping.");
fullExpression = Lambda(Block(Throw(New(ctor, message, Constant(null), Constant(mapRequest.RequestedTypes))), Default(destinationType)), source, destination, context);
}
else
{
var map = mapperToUse.MapExpression(mapperConfiguration._typeMapRegistry, mapperConfiguration, null, ToType(source, mapRequest.RuntimeTypes.SourceType), destination, context);
var mapToDestination = Lambda(ToType(map, destinationType), source, destination, context);
fullExpression = TryCatch(mapToDestination, source, destination, context, mapRequest.RequestedTypes);
}
return(fullExpression);
}
private static LambdaExpression GenerateObjectMapperExpression(MapRequest mapRequest, IObjectMapper mapperToUse, MapperConfiguration mapperConfiguration)
{
var destinationType = mapRequest.RequestedTypes.DestinationType;
var source = Expression.Parameter(mapRequest.RequestedTypes.SourceType, "source");
var destination = Expression.Parameter(destinationType, "mapperDestination");
var context = Expression.Parameter(typeof(ResolutionContext), "context");
LambdaExpression fullExpression;
if (mapperToUse == null)
{
var message = Expression.Constant("Missing type map configuration or unsupported mapping.");
fullExpression = Expression.Lambda(Expression.Block(Expression.Throw(Expression.New(ExceptionConstructor, message, Expression.Constant(null, typeof(Exception)), Expression.Constant(mapRequest.RequestedTypes))), Expression.Default(destinationType)), source, destination, context);
}
else
{
var map = mapperToUse.MapExpression(mapperConfiguration.TypeMapRegistry, mapperConfiguration, null, ExpressionExtensions.ToType(source, mapRequest.RuntimeTypes.SourceType), destination, context);
var mapToDestination = Expression.Lambda(ExpressionExtensions.ToType(map, destinationType), source, destination, context);
fullExpression = TryCatch(mapToDestination, source, destination, context, mapRequest.RequestedTypes);
}
return(fullExpression);
}