enumtype¶

How the values of an enumeration are distributed.

Declaration¶

Sintaxe¶

enumtype
    = IntegerConsecutiveFromZero
    | IntegerUnique
    | IntegerNotUnique
    | NonInteger

Values¶

Value	Meaning
`IntegerConsecutiveFromZero`	the values are 0, 1, 2, … in order. A backend may use one directly as an index.
`IntegerUnique`	integer values, all different, but not consecutive.
`IntegerNotUnique`	integer values, with repeats.
`NonInteger`	the values are not integers, so arithmetic on them is not meaningful.

Valores de retorno¶

None. An enumeration value is not evaluated.

Descrição¶

The frontend works this out once, when it builds the Enum, so that a later pass can tell whether a jump table is possible without examining every enumerator.

Veja Também¶

Enum, EnumType, EnumValue