pub type BuildError =
  String

pub type BuildResult(a) =
  Result(a, BuildError)

pub type ExtractionError {
  UnrecognisedLong(String)
  UnrecognisedShort(String)
  UnexpectedArgument(String)
  NoArgument(String)
  NotAFlag(String)
}

Constructors

• UnrecognisedLong(String)

  When a long option is not recognised.

• UnrecognisedShort(String)

  When a short option is not recognised.

• UnexpectedArgument(String)

  When too many arguments are given.

• NoArgument(String)

  When a named argument option is not given an argument.

• NotAFlag(String)

  When a flag is given an argument.

pub type ParseError {
  DecodeError(dynamic.DecodeError)
  ValidationError(String)
  ExtractionError(ExtractionError)
}

Constructors

• DecodeError(dynamic.DecodeError)

• ValidationError(String)

• ExtractionError(ExtractionError)

pub type ParseResult(a) =
  Result(a, ParseError)