Struct zng_app_context::ContextValueSet

pub struct ContextValueSet(/* private fields */);

Identifies a selection of LocalContext values.

Implementations

impl ContextValueSet

pub const fn new() -> Self

New empty.

pub fn insert(&mut self, value: &'static impl ContextLocalKeyProvider) -> bool

Insert a context local.

pub fn remove(&mut self, value: &'static impl ContextLocalKeyProvider) -> bool

Remove a context local.

pub fn contains(&self, value: &'static impl ContextLocalKeyProvider) -> bool

Checks if the context local is in the set.

pub fn len(&self) -> usize

Number of unique values in the set.

pub fn is_empty(&self) -> bool

If the set has any values.

pub fn insert_all(&mut self, other: &Self)

Extend this set with all other contexts.

pub fn remove_all(&mut self, other: &Self)

Removes all other contexts from this set.

Trait Implementations

impl Clone for ContextValueSet

fn clone(&self) -> ContextValueSet

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ContextValueSet

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

Formats the value using the given formatter.

impl Default for ContextValueSet

fn default() -> ContextValueSet

Returns the “default value” for a type.

impl PartialEq for ContextValueSet

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for ContextValueSet

impl StructuralPartialEq for ContextValueSet