Can't compile nim on hints part when using Option[string]

[EpicUsaMan]

Error:

fatal.nim(48)            sysFatal
Error: unhandled exception: sons is not accessible [FieldError]

Example code:

type Config = object
    templatePath: Option[string]

var configList: seq[Config]
let fileStream = newFileStream(filename)
load(fileStream, configList)
fileStream.close()

[flyx]

This happens because Option is not supported by NimYAML. It would need two functions in yaml/serialization.nim:

proc constructObject*[T](s: var YamlStream, c: ConstructionContext,
                         result: var Option[T])

and

proc representObject*[T](value: Option[T], ts: TagStyle,
    c: SerializationContext, tag: TagId)

I am not actively maintaining NimYAML, but a PR would be welcome.

[flyx]

It was a bit trickier than I expected; works as of v0.13.0 which I just released.