Trait Iterable 

pub trait Iterable: Sized {
    type Iterator: Iterator<Item = Self> + Clone + DoubleEndedIterator + ExactSizeIterator + FusedIterator;

    // Required method
    fn iter() -> Self::Iterator;
}

This trait designates that an Enum can be iterated over. It can be auto generated using the EnumIter derive macro.

Example

// You need to bring the type into scope to use it!!!
use strum::{EnumIter, IntoEnumIterator};

#[derive(EnumIter, Debug)]
enum Color {
    Red,
    Green { range: usize },
    Blue(usize),
    Yellow,
}

// Iterate over the items in an enum and perform some function on them.
fn generic_iterator<E, F>(pred: F)
where
    E: IntoEnumIterator,
    F: Fn(E),
{
    for e in E::iter() {
        pred(e)
    }
}

generic_iterator::<Color, _>(|color| println!("{:?}", color));

Required Associated Types

type Iterator: Iterator<Item = Self> + Clone + DoubleEndedIterator + ExactSizeIterator + FusedIterator

Required Methods

fn iter() -> Self::Iterator

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl IntoEnumIterator for sea_orm::rbac::entity::permission::Column

Available on crate feature rbac only.

type Iterator = ColumnIter

impl IntoEnumIterator for sea_orm::rbac::entity::permission::PrimaryKey

Available on crate feature rbac only.

type Iterator = PrimaryKeyIter

impl IntoEnumIterator for sea_orm::rbac::entity::permission::Relation

Available on crate feature rbac only.

type Iterator = RelationIter

impl IntoEnumIterator for sea_orm::rbac::entity::resource::Column

Available on crate feature rbac only.

type Iterator = ColumnIter

impl IntoEnumIterator for sea_orm::rbac::entity::resource::PrimaryKey

Available on crate feature rbac only.

type Iterator = PrimaryKeyIter

impl IntoEnumIterator for sea_orm::rbac::entity::resource::Relation

Available on crate feature rbac only.

type Iterator = RelationIter

impl IntoEnumIterator for sea_orm::rbac::entity::role::Column

Available on crate feature rbac only.

type Iterator = ColumnIter

impl IntoEnumIterator for sea_orm::rbac::entity::role::PrimaryKey

Available on crate feature rbac only.

type Iterator = PrimaryKeyIter

impl IntoEnumIterator for sea_orm::rbac::entity::role::Relation

Available on crate feature rbac only.

type Iterator = RelationIter

impl IntoEnumIterator for sea_orm::rbac::entity::role_hierarchy::Column

Available on crate feature rbac only.

type Iterator = ColumnIter

impl IntoEnumIterator for sea_orm::rbac::entity::role_hierarchy::PrimaryKey

Available on crate feature rbac only.

type Iterator = PrimaryKeyIter

impl IntoEnumIterator for sea_orm::rbac::entity::role_hierarchy::Relation

Available on crate feature rbac only.

type Iterator = RelationIter

impl IntoEnumIterator for sea_orm::rbac::entity::role_permission::Column

Available on crate feature rbac only.

type Iterator = ColumnIter

impl IntoEnumIterator for sea_orm::rbac::entity::role_permission::PrimaryKey

Available on crate feature rbac only.

type Iterator = PrimaryKeyIter

impl IntoEnumIterator for sea_orm::rbac::entity::role_permission::Relation

Available on crate feature rbac only.

type Iterator = RelationIter

impl IntoEnumIterator for sea_orm::rbac::entity::user_override::Column

Available on crate feature rbac only.

type Iterator = ColumnIter

impl IntoEnumIterator for sea_orm::rbac::entity::user_override::PrimaryKey

Available on crate feature rbac only.

type Iterator = PrimaryKeyIter

impl IntoEnumIterator for sea_orm::rbac::entity::user_override::Relation

Available on crate feature rbac only.

type Iterator = RelationIter

impl IntoEnumIterator for sea_orm::rbac::entity::user_role::Column

Available on crate feature rbac only.

type Iterator = ColumnIter

impl IntoEnumIterator for sea_orm::rbac::entity::user_role::PrimaryKey

Available on crate feature rbac only.

type Iterator = PrimaryKeyIter

impl IntoEnumIterator for sea_orm::rbac::entity::user_role::Relation

Available on crate feature rbac only.

type Iterator = RelationIter