Symbols

Identifier-like :name values for tags and enum-like choices, plus symbolset vocabularies._

A symbol is an identifier-like value written :name — no space between the colon and the name. Symbols are used for tags, enum-like choices, and any time you want a typed name rather than a string.

shade  = :amber
accent = :cyan
edge   = :uses

§ 1The symbol type

A free-form field accepting any symbol has type symbol. There is no validation on which symbols may appear — anything that lexes as :name is valid.

type Tag {
  name: utf8
  kind: symbol
}

t = Tag { name: "release", kind: :stable }