Struct Access 

pub struct Access { /* private fields */ }

A system’s declared data access.

Implementations

impl Access

pub fn new() -> Access

An empty declaration: no components, no resources, not exclusive.

pub fn reads_components(self, components: ComponentMask) -> Access

Declare the components step reads.

pub fn writes_components(self, components: ComponentMask) -> Access

Declare the components step writes.

pub fn reads_resources(self, resources: ComponentMask) -> Access

Declare the resources step reads.

pub fn writes_resources(self, resources: ComponentMask) -> Access

Declare the resources step writes.

pub fn exclusive(self) -> Access

Mark the system as exclusive: it conflicts with every other system and so never runs concurrently. Used for a system that touches non-shareable state the access masks do not model (e.g. a main-thread-only backend).

pub fn is_exclusive(self) -> bool

Whether the system was marked exclusive.

pub fn union(self, other: Access) -> Access

The combined access of two declarations: reads, writes, and exclusivity union. Used to fold a data-dependent system’s per-program accesses into its schedule-visible declaration.

pub fn may_read_component(self, id: ComponentId) -> bool

Whether a read of this component id is within the declaration (a declared write implies read permission; exclusive allows everything).

pub fn may_write_component(self, id: ComponentId) -> bool

Whether a write of this component id is within the declaration.

pub fn may_read_resource(self, id: ComponentId) -> bool

Whether a read of this resource id is within the declaration (a declared write implies read permission).

pub fn may_write_resource(self, id: ComponentId) -> bool

Whether a write of this resource id is within the declaration.

pub fn conflicts_with(self, other: Access) -> bool

Whether this system can run concurrently with other.

Trait Implementations

impl Clone for Access

fn clone(&self) -> Access

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Access

impl Debug for Access

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

Formats the value using the given formatter.

impl Default for Access

fn default() -> Access

Returns the “default value” for a type.

impl Eq for Access

impl PartialEq for Access

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Access