Fallibility

The fallible primitive cannot fail when invoked with arguments of the specified types.

The fallible primitive can indeed fail when invoked with arguments of the specified types.

The fallible primitive must fail when invoked with arguments of the specified types.

The fallible primitive may have the effect of invoking some function body, which makes it subject to reification while it runs. The call site should be prepared to produce a reified continuation if this happens.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.