`TomlValueRef.to(object)`

[qb-0]

That's a feature I'm really missing with using parsetoml.

I'm aware that I could use toJson but this doesn't feels natural:

import json, parsetoml

parsetoml.parseFile("mycfg.toml").toJson().to(object)

[HugoGranstrom]

For those like me trying the suggested code above, it doesn't work. This is because parsetoml doesn't generate JSON for serialization but for testing. So the object (srcDir: "docsrc", "homeDir": "docs") is generated as: {"srcDir":{"type":"string","value":"docsrc"},"homeDir":{"type":"string","value":"docs"}}. I solved this by modifying their toJson proc to output the expected JSON instead:

proc customToJson*(table: parsetoml.TomlTableRef): JsonNode

proc customToJson*(value: parsetoml.TomlValueRef): JsonNode =
  case value.kind:
    of TomlValueKind.Int:
      %* value.intVal
    of TomlValueKind.Float:
      if classify(value.floatVal) == fcNan:
        if value.forcedSign != Pos:
          %* value.floatVal
        else:
          %* value.floatVal
      else:
        %* value.floatVal
    of TomlValueKind.Bool:
      %* $value.boolVal
    of TomlValueKind.Datetime:
      if value.dateTimeVal.shift == false:
        %* value.dateTimeVal
      else:
        %* value.dateTimeVal
    of TomlValueKind.Date:
      %* value.dateVal
    of TomlValueKind.Time:
      %* value.timeVal
    of TomlValueKind.String:
      %* value.stringVal
    of TomlValueKind.Array:
      if value.arrayVal.len == 0:
        when defined(newtestsuite):
          %[]
        else:
          %* []
      elif value.arrayVal[0].kind == TomlValueKind.Table:
        %value.arrayVal.map(customToJson)
      else:
        when defined(newtestsuite):
          %*value.arrayVal.map(customToJson)
        else:
          %* value.arrayVal.map(customToJson)
    of TomlValueKind.Table:
      value.tableVal.customToJson()
    of TomlValueKind.None:
      %*{"type": "ERROR"}

proc customToJson*(table: parsetoml.TomlTableRef): JsonNode =
  result = newJObject()
  for key, value in pairs(table):
    result[key] = value.customToJson

I haven't tested it extensively but I hope someone can have some use for it until direct deserialization support is added to parsetoml :)

[PMunch]

Yes the JSON output of parsetoml is for testing through the burntsushi TOML conformance test. Having a native to would be nice.