package orsetto

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package orsetto
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Untyped values with runtime type indications used with JSON.

include Cf_type.Form
val req : 'a Cf_type.nym -> Cf_type.opaque -> 'a

Use opt n v to extract v' if n is equivalent to the encapsulated runtime type, otherwise raises an exception (conventionally Type_error).

val opt : 'a Cf_type.nym -> Cf_type.opaque -> 'a option

Use opt n v to extract Some v' if n is equivalent to the encapsulated runtime type, otherwise returns None.

val eq : 'a Cf_type.nym -> 'b Cf_type.nym -> ('a, 'b) Cf_type.eq

Use eq a b to produce the equivalence constraint for the types associated with nyms a and b under the horizon. Returns Eq if a and b are nyms for equivalent types, otherwise raises Type_error.

val ck : 'a Cf_type.nym -> Cf_type.opaque -> bool

Use ck n v to test whether n is equivalent to the encapsulated runtime type.