Struct ProviderChain 

pub struct ProviderChain { /* private fields */ }

Ordered primary-plus-fallback provider list for future provider routing.

The helper is intentionally dormant: constructing or parsing a chain does not change ConfigToml::resolve_runtime_options.

Implementations

impl ProviderChain

pub fn new(active: ProviderKind, fallbacks: &[ProviderKind]) -> Self

pub fn providers(&self) -> &[ProviderKind]

pub fn position(&self) -> usize

pub fn current(&self) -> ProviderKind

pub fn has_next(&self) -> bool

pub fn advance(&mut self) -> Option<ProviderKind>

pub fn reset(&mut self)

pub fn is_fallback_active(&self) -> bool

pub fn remaining(&self) -> usize

Count the current provider plus untried chain entries.

Trait Implementations

impl Clone for ProviderChain

fn clone(&self) -> ProviderChain

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProviderChain

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ProviderChain

impl PartialEq for ProviderChain

fn eq(&self, other: &ProviderChain) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ProviderChain