public Expression CreateExpression(TypeMapRegistry typeMapRegistry,
ParameterExpression srcParam,
ParameterExpression ctxtParam,
ref ParameterExpression parameterContext)
{
if (CustomExpression != null)
{
return(CustomExpression.ConvertReplaceParameters(srcParam).IfNotNull());
}
if (CustomValueResolver != null)
{
return(Invoke(Constant(CustomValueResolver), srcParam, ctxtParam));
}
if (!SourceMembers.Any() && Parameter.IsOptional)
{
return(Constant(Parameter.GetDefaultValue()));
}
if (typeMapRegistry.GetTypeMap(new TypePair(SourceType, DestinationType)) == null &&
Parameter.IsOptional)
{
return(Constant(Parameter.GetDefaultValue()));
}
var valueResolverExpr = SourceMembers.Aggregate(
(Expression)srcParam,
(inner, getter) => getter.MemberInfo is MethodInfo
? getter.MemberInfo.IsStatic()
? Call(null, (MethodInfo)getter.MemberInfo, inner)
: (Expression)Call(inner, (MethodInfo)getter.MemberInfo)
: MakeMemberAccess(getter.MemberInfo.IsStatic() ? null : inner, getter.MemberInfo)
);
valueResolverExpr = valueResolverExpr.IfNotNull();
if ((SourceType.IsEnumerableType() && SourceType != typeof(string)) ||
typeMapRegistry.GetTypeMap(new TypePair(SourceType, DestinationType)) != null ||
!DestinationType.IsAssignableFrom(SourceType))
{
/*
* var value = context.Mapper.Map(result, null, sourceType, destinationType, context);
*/
return(TypeMapPlanBuilder.ContextMap(valueResolverExpr, Default(DestinationType), DestinationType, ref parameterContext));
}
return(valueResolverExpr);
}
public Expression CreateExpression(TypeMapRegistry typeMapRegistry,
ParameterExpression srcParam,
ParameterExpression ctxtParam)
{
if (CustomExpression != null)
{
return(CustomExpression.ConvertReplaceParameters(srcParam).IfNotNull());
}
if (CustomValueResolver != null)
{
return(Invoke(Constant(CustomValueResolver), srcParam, ctxtParam));
}
if (!SourceMembers.Any() && Parameter.IsOptional)
{
return(Constant(Parameter.GetDefaultValue()));
}
if (typeMapRegistry.GetTypeMap(new TypePair(SourceType, DestinationType)) == null &&
Parameter.IsOptional)
{
return(Constant(Parameter.GetDefaultValue()));
}
var valueResolverExpr = SourceMembers.Aggregate(
(Expression)srcParam,
(inner, getter) => getter.MemberInfo is MethodInfo
? getter.MemberInfo.IsStatic()
? Call(null, (MethodInfo)getter.MemberInfo, inner)
: (Expression)Call(inner, (MethodInfo)getter.MemberInfo)
: MakeMemberAccess(getter.MemberInfo.IsStatic() ? null : inner, getter.MemberInfo)
);
valueResolverExpr = valueResolverExpr.IfNotNull();
if ((SourceType.IsEnumerableType() && SourceType != typeof(string)) ||
typeMapRegistry.GetTypeMap(new TypePair(SourceType, DestinationType)) != null ||
!DestinationType.IsAssignableFrom(SourceType))
{
/*
* var value = context.Mapper.Map(result, null, sourceType, destinationType, context);
*/
var mapperProp = MakeMemberAccess(ctxtParam, typeof(ResolutionContext).GetProperty("Mapper"));
var mapMethod = typeof(IRuntimeMapper).GetMethod("Map",
new[] { typeof(object), typeof(object), typeof(Type), typeof(Type), typeof(ResolutionContext) });
valueResolverExpr = Call(
mapperProp,
mapMethod,
ToObject(valueResolverExpr),
Constant(null),
Constant(SourceType),
Constant(DestinationType),
ctxtParam
);
}
return(valueResolverExpr);
}