Struct WebGLQuery 

#[repr(C)]
pub(crate) struct WebGLQuery {
    webgl_object: WebGLObject,
    gl_id: WebGLQueryId,
    gl_target: Cell<Option<u32>>,
    marked_for_deletion: Cell<bool>,
    query_result_available: Cell<Option<u32>>,
    query_result: Cell<u32>,
}

Fields

webgl_object: WebGLObject

gl_id: WebGLQueryId

gl_target: Cell<Option<u32>>

marked_for_deletion: Cell<bool>

query_result_available: Cell<Option<u32>>

query_result: Cell<u32>

Implementations

impl WebGLQuery

fn __assert_parent_type(&self)

impl WebGLQuery

fn new_inherited(context: &WebGLRenderingContext, id: WebGLQueryId) -> Self

pub(crate) fn new( context: &WebGLRenderingContext, can_gc: CanGc, ) -> DomRoot<Self>

pub(crate) fn begin( &self, context: &WebGLRenderingContext, target: u32, ) -> Result<(), WebGLError>

pub(crate) fn end( &self, context: &WebGLRenderingContext, target: u32, ) -> Result<(), WebGLError>

pub(crate) fn delete(&self, operation_fallibility: Operation)

pub(crate) fn is_valid(&self) -> bool

pub(crate) fn target(&self) -> Option<u32>

fn update_results(&self, context: &WebGLRenderingContext)

pub(crate) fn get_parameter( &self, context: &WebGLRenderingContext, pname: u32, ) -> Result<u32, WebGLError>

Trait Implementations

impl Castable for WebGLQuery

fn is<T>(&self) -> bool

where T: DerivedFrom<Self>,

Check whether a DOM object implements one of its deriving interfaces.

fn upcast<T>(&self) -> &T

where T: Castable, Self: DerivedFrom<T>,

Cast a DOM object upwards to one of the interfaces it derives from.

fn downcast<T>(&self) -> Option<&T>

where T: DerivedFrom<Self>,

Cast a DOM object downwards to one of the interfaces it might implement.

impl DomObject for WebGLQuery

fn reflector(&self) -> &Reflector

Returns the receiver’s reflector.

impl DomObjectWrap<DomTypeHolder> for WebGLQuery

const WRAP: unsafe fn(SafeJSContext, &GlobalScope, Option<HandleObject<'_>>, Box<Self>, CanGc) -> Root<Dom<Self>> = {script_bindings::codegen::GenericBindings::WebGLQueryBinding::Wrap::<dom::bindings::codegen::DomTypeHolder::DomTypeHolder> as for<'a, 'b> unsafe fn(script_bindings::script_runtime::JSContext, &'a dom::globalscope::GlobalScope, std::option::Option<js::rust::Handle<'b, *mut js::jsapi::JSObject>>, std::boxed::Box<dom::webgl::webglquery::WebGLQuery>, script_bindings::script_runtime::CanGc) -> script_bindings::root::Root<script_bindings::root::Dom<dom::webgl::webglquery::WebGLQuery>>}

Function pointer to the general wrap function type

impl Drop for WebGLQuery

fn drop(&mut self)

Executes the destructor for this type.

impl HasParent for WebGLQuery

fn as_parent(&self) -> &WebGLObject

This is used in a type assertion to ensure that the source and webidls agree as to what the parent type is

type Parent = WebGLObject

impl IDLInterface for WebGLQuery

fn derives(class: &'static DOMClass) -> bool

Returns whether the given DOM class derives that interface.

impl MallocSizeOf for WebGLQuery

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl MutDomObject for WebGLQuery

unsafe fn init_reflector(&self, obj: *mut JSObject)

Initializes the Reflector

impl PartialEq for WebGLQuery

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 ToJSValConvertible for WebGLQuery

unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue<'_>)

Convert self to a JSVal. JSAPI failure causes a panic.

impl Traceable for WebGLQuery

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.

impl DerivedFrom<WebGLObject> for WebGLQuery

impl Eq for WebGLQuery