void WriteTranslatorBody <TFrom, TTo>(ILWriter writer)
{
var sourceProperties = typeof(TFrom).GetPublicPropertiesWithGetter();
var targetProperties = typeof(TTo).GetPublicPropertiesWithSetter().ToDictionary(p => p.Name);
var targetedSourceProperties = sourceProperties.GetTranslatableProperties <TTo>();
if (targetProperties.Count == 0)
{
writer.ReturnNull();
return;
}
var localTargetInstance = writer.DeclareLocal <TTo>();
writer.New <TTo>();
writer.SetLocal(localTargetInstance);
foreach (var sourceProperty in sourceProperties)
{
var explicitMapping = GetExplicitMappingIfPresent <TTo>(sourceProperty);
var targetName = (explicitMapping == null) ? sourceProperty.Name : explicitMapping.PropertyName;
if (!targetProperties.ContainsKey(targetName))
{
if (this.shouldThrowExceptions)
{
throw new PropertyIsMissingException();
}
continue;
}
var targetProperty = targetProperties[targetName];
var propertiesAreSameType = sourceProperty.PropertyType == targetProperty.PropertyType;
if (!propertiesAreSameType && !sourceProperty.PropertyType.HasConversionTo(targetProperty.PropertyType))
{
if (this.shouldThrowExceptions)
{
throw new PropertyTypeMismatchException();
}
continue;
}
var localSourceValue = writer.DeclareLocal(sourceProperty.PropertyType);
writer.LoadFirstParameter();
writer.GetPropertyValue(sourceProperty);
writer.SetLocal(localSourceValue);
writer.LoadLocal(localTargetInstance);
writer.LoadLocal(localSourceValue);
if (!propertiesAreSameType)
{
writer.Cast(sourceProperty.PropertyType, targetProperty.PropertyType);
}
writer.SetPropertyValue(targetProperty);
}
writer.LoadLocal(localTargetInstance);
writer.Return();
writer.VerifyStack();
}