Struct RoleSet 

pub struct RoleSet { /* private fields */ }

The roles one process runs, never empty.

Implementations

impl RoleSet

pub fn has(self, role: ProcessRole) -> bool

Whether this process runs role.

pub fn labels(self) -> Vec<&'static str>

The roles held, in a stable order, for a log field.

pub fn parse(value: Option<&str>) -> Result<Self, String>

Parses a --role value: a comma-separated list, or None for all three.

Errors

An unknown role name, or a list that names none — --role "" asks for a process with nothing to do, which is a typo rather than a topology.

Trait Implementations

impl Clone for RoleSet

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RoleSet

impl Debug for RoleSet

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

Formats the value using the given formatter.

impl Default for RoleSet

fn default() -> Self

All three: what serve with no --role runs, and what every deployment before the flag existed ran.

impl Eq for RoleSet

impl PartialEq for RoleSet

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RoleSet