Struct QuerySet 

pub struct QuerySet {
    pub(crate) inner: DispatchQuerySet,
}

Handle to a query set.

A QuerySet is an opaque, mutable storage location for the results of queries: which are small pieces of information extracted from other operations such as render passes. See QueryType for what types of information can be collected.

Each query writes data into one or more result slots in the QuerySet, which must be created with a sufficient number of slots for that usage. Each result slot is a an unsigned 64-bit number.

Using queries consists of the following steps:

1. Create a QuerySet of the appropriate type and number of query result slots using Device::create_query_set().
2. Pass the QuerySet to the commands which will write to it. See QueryType for the possible commands.
3. Execute the command CommandEncoder::resolve_query_set(). This converts the opaque data stored in a QuerySet into u64s stored in a Buffer.
4. Make use of that buffer, such as by copying its contents to the CPU or reading it from a compute shader.

Corresponds to WebGPU GPUQuerySet.

Fields

inner: DispatchQuerySet

Implementations

impl QuerySet

pub fn as_custom<T: QuerySetInterface>(&self) -> Option<&T>

Available on custom only.

Returns custom implementation of QuerySet (if custom backend and is internally T)

Trait Implementations

impl Clone for QuerySet

fn clone(&self) -> QuerySet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QuerySet

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

Formats the value using the given formatter.

impl Hash for QuerySet

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for QuerySet

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for QuerySet

fn eq(&self, other: &Self) -> 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 PartialOrd for QuerySet

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for QuerySet