chore: remove std::mem::* imports now unnecessary with Rust 1.80

`std::mem::{size,align}_of{,_val}` was added to `std::prelude` in Rust
1.80; see
[`rust`#123168](rust-lang/rust#123168).

examples/src/boids/mod.rs

@@ -2,7 +2,6 @@
 // adapted from https://github.com/austinEng/webgpu-samples/blob/master/src/examples/computeBoids.ts
 
 use nanorand::{Rng, WyRand};
-use std::mem::size_of;
 use wgpu::util::DeviceExt;
 
 // number of boid particles to simulate

examples/src/cube/mod.rs

@@ -1,5 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{f32::consts, mem::size_of};
+use std::f32::consts;
 use wgpu::util::DeviceExt;
 
 #[repr(C)]

examples/src/hello_compute/mod.rs

@@ -1,4 +1,4 @@
-use std::{mem::size_of_val, str::FromStr};
+use std::str::FromStr;
 use wgpu::util::DeviceExt;
 
 // Indicates a u32 overflow in an intermediate Collatz value

examples/src/hello_synchronization/mod.rs

@@ -1,5 +1,3 @@
-use std::mem::size_of_val;
-
 const ARR_SIZE: usize = 128;
 
 struct ExecuteResults {

examples/src/hello_workgroups/mod.rs

@@ -7,8 +7,6 @@
 //!
 //! Only parts specific to this example will be commented.
 
-use std::mem::size_of_val;
-
 use wgpu::util::DeviceExt;
 
 async fn run() {

examples/src/mipmap/mod.rs

@@ -1,5 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{f32::consts, mem::size_of};
+use std::f32::consts;
 use wgpu::util::DeviceExt;
 
 const TEXTURE_FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Rgba8UnormSrgb;

examples/src/msaa_line/mod.rs

@@ -7,7 +7,7 @@
 //! *   Set the primitive_topology to PrimitiveTopology::LineList.
 //! *   Vertices and Indices describe the two points that make up a line.
 
-use std::{iter, mem::size_of};
+use std::iter;
 
 use bytemuck::{Pod, Zeroable};
 use wgpu::util::DeviceExt;

examples/src/repeated_compute/mod.rs

@@ -5,8 +5,6 @@
 //! hello-compute example does not such as mapping buffers
 //! and why use the async channels.
 
-use std::mem::size_of_val;
-
 const OVERFLOW: u32 = 0xffffffff;
 
 async fn run() {

examples/src/shadow/mod.rs

@@ -1,4 +1,4 @@
-use std::{f32::consts, iter, mem::size_of, ops::Range, sync::Arc};
+use std::{f32::consts, iter, ops::Range, sync::Arc};
 
 use bytemuck::{Pod, Zeroable};
 use wgpu::util::{align_to, DeviceExt};

examples/src/skybox/mod.rs

@@ -1,5 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{f32::consts, mem::size_of};
+use std::f32::consts;
 use wgpu::{util::DeviceExt, AstcBlock, AstcChannel};
 
 const IMAGE_SIZE: u32 = 256;

examples/src/stencil_triangles/mod.rs

@@ -1,5 +1,4 @@
 use bytemuck::{Pod, Zeroable};
-use std::mem::size_of;
 use wgpu::util::DeviceExt;
 
 #[repr(C)]

examples/src/storage_texture/mod.rs

@@ -14,8 +14,6 @@
 //! A lot of things aren't explained here via comments. See hello-compute and
 //! repeated-compute for code that is more thoroughly commented.
 
-use std::mem::size_of_val;
-
 #[cfg(not(target_arch = "wasm32"))]
 use crate::utils::output_image_native;
 #[cfg(target_arch = "wasm32")]

examples/src/texture_arrays/mod.rs

@@ -1,8 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use std::{
-    mem::size_of,
-    num::{NonZeroU32, NonZeroU64},
-};
+use std::num::{NonZeroU32, NonZeroU64};
 use wgpu::util::DeviceExt;
 
 #[repr(C)]

examples/src/timestamp_queries/mod.rs

@@ -17,8 +17,6 @@
 //! The period, i.e. the unit of time, of the timestamps in wgpu is undetermined and needs to be queried with `wgpu::Queue::get_timestamp_period`
 //! in order to get comparable results.
 
-use std::mem::size_of;
-
 use wgpu::util::DeviceExt;
 
 struct Queries {

examples/src/uniform_values/mod.rs

@@ -16,7 +16,7 @@
 //! The usage of the uniform buffer within the shader itself is pretty self-explanatory given
 //! some understanding of WGSL.
 
-use std::{mem::size_of, sync::Arc};
+use std::sync::Arc;
 // We won't bring StorageBuffer into scope as that might be too easy to confuse
 // with actual GPU-allocated WGPU storage buffers.
 use encase::ShaderType;

examples/src/water/mod.rs

@@ -3,7 +3,7 @@ mod point_gen;
 use bytemuck::{Pod, Zeroable};
 use glam::Vec3;
 use nanorand::{Rng, WyRand};
-use std::{f32::consts, iter, mem::size_of};
+use std::{f32::consts, iter};
 use wgpu::util::DeviceExt;
 
 ///

naga/src/back/msl/mod.rs

@@ -668,6 +668,5 @@ pub fn write_string(
 
 #[test]
 fn test_error_size() {
-    use std::mem::size_of;
     assert_eq!(size_of::<Error>(), 32);
 }

player/tests/test.rs

@@ -14,7 +14,6 @@ use player::GlobalPlay;
 use std::{
     fs::{read_to_string, File},
     io::{Read, Seek, SeekFrom},
-    mem::size_of,
     path::{Path, PathBuf},
     slice,
 };

tests/tests/compute_pass_ownership.rs

@@ -1,7 +1,7 @@
 //! Tests that compute passes take ownership of resources that are associated with.
 //! I.e. once a resource is passed in to a compute pass, it can be dropped.
 
-use std::{mem::size_of, num::NonZeroU64};
+use std::num::NonZeroU64;
 
 use wgpu::util::DeviceExt as _;
 use wgpu_test::{gpu_test, valid, GpuTestConfiguration, TestParameters, TestingContext};

tests/tests/occlusion_query/mod.rs

@@ -1,4 +1,3 @@
-use std::mem::size_of;
 use wgpu_test::{gpu_test, FailureCase, GpuTestConfiguration, TestParameters};
 
 #[gpu_test]

tests/tests/render_pass_ownership.rs

@@ -9,7 +9,7 @@
 //! * rpass.multi_draw_indirect_count
 //! * rpass.multi_draw_indexed_indirect_count
 //!
-use std::{mem::size_of, num::NonZeroU64};
+use std::num::NonZeroU64;
 
 use wgpu::util::DeviceExt as _;
 use wgpu_test::{gpu_test, valid, GpuTestConfiguration, TestParameters, TestingContext};

tests/tests/subgroup_operations/mod.rs

@@ -1,4 +1,4 @@
-use std::{mem::size_of, num::NonZeroU64};
+use std::num::NonZeroU64;
 
 use wgpu_test::{gpu_test, GpuTestConfiguration, TestParameters};
 

tests/tests/vertex_formats/mod.rs

@@ -1,6 +1,6 @@
 //! Tests that vertex formats pass through to vertex shaders accurately.
 
-use std::{mem::size_of_val, num::NonZeroU64};
+use std::num::NonZeroU64;
 
 use wgpu::util::{BufferInitDescriptor, DeviceExt};
 

tests/tests/vertex_indices/mod.rs

@@ -3,7 +3,7 @@
 //! We need tests for these as the backends use various schemes to work around the lack
 //! of support for things like `gl_BaseInstance` in shaders.
 
-use std::{mem::size_of_val, num::NonZeroU64, ops::Range};
+use std::{num::NonZeroU64, ops::Range};
 
 use itertools::Itertools;
 use strum::IntoEnumIterator;

wgpu-core/src/command/bundle.rs

@@ -103,7 +103,7 @@ use crate::{
 };
 use arrayvec::ArrayVec;
 
-use std::{borrow::Cow, mem::size_of, num::NonZeroU32, ops::Range, sync::Arc};
+use std::{borrow::Cow, num::NonZeroU32, ops::Range, sync::Arc};
 use thiserror::Error;
 
 use super::{

wgpu-core/src/command/compute.rs

@@ -29,7 +29,7 @@ use thiserror::Error;
 use wgt::{BufferAddress, DynamicOffset};
 
 use std::sync::Arc;
-use std::{fmt, mem::size_of, str};
+use std::{fmt, str};
 
 use super::{bind::BinderError, memory_init::CommandBufferTextureMemoryActions};
 

wgpu-core/src/command/render.rs

@@ -46,7 +46,7 @@ use serde::Deserialize;
 use serde::Serialize;
 
 use std::sync::Arc;
-use std::{borrow::Cow, fmt, iter, mem::size_of, num::NonZeroU32, ops::Range, str};
+use std::{borrow::Cow, fmt, iter, num::NonZeroU32, ops::Range, str};
 
 use super::render_command::ArcRenderCommand;
 use super::{

wgpu-core/src/id.rs

@@ -4,7 +4,6 @@ use std::{
     fmt::{self, Debug},
     hash::Hash,
     marker::PhantomData,
-    mem::size_of,
     num::NonZeroU64,
 };
 use wgt::WasmNotSendSync;

wgpu-core/src/pipeline_cache.rs

@@ -1,5 +1,3 @@
-use std::mem::size_of;
-
 use thiserror::Error;
 use wgt::AdapterInfo;
 

wgpu-core/src/registry.rs

@@ -1,4 +1,4 @@
-use std::{mem::size_of, sync::Arc};
+use std::sync::Arc;
 
 use crate::{
     id::Id,

wgpu-hal/examples/halmark/main.rs

@@ -14,9 +14,7 @@ use winit::{
 
 use std::{
     borrow::{Borrow, Cow},
-    iter,
-    mem::size_of,
-    ptr,
+    iter, ptr,
     time::Instant,
 };
 

wgpu-hal/examples/ray-traced-triangle/main.rs

@@ -8,9 +8,7 @@ use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
 use glam::{Affine3A, Mat4, Vec3};
 use std::{
     borrow::{Borrow, Cow},
-    iter,
-    mem::size_of,
-    ptr,
+    iter, ptr,
     time::Instant,
 };
 use winit::window::WindowButtons;

wgpu-hal/src/dx12/adapter.rs

@@ -1,9 +1,4 @@
-use std::{
-    mem::{size_of, size_of_val},
-    ptr,
-    sync::Arc,
-    thread,
-};
+use std::{ptr, sync::Arc, thread};
 
 use parking_lot::Mutex;
 use windows::{

wgpu-hal/src/dx12/device.rs

@@ -1,6 +1,5 @@
 use std::{
-    ffi,
-    mem::{self, size_of},
+    ffi, mem,
     num::NonZeroU32,
     ptr,
     sync::Arc,

wgpu-hal/src/dx12/instance.rs

@@ -1,4 +1,4 @@
-use std::{mem::size_of_val, sync::Arc};
+use std::sync::Arc;
 
 use parking_lot::RwLock;
 use windows::{

wgpu-hal/src/gles/command.rs

@@ -1,9 +1,6 @@
 use super::{conv, Command as C};
 use arrayvec::ArrayVec;
-use std::{
-    mem::{self, size_of, size_of_val},
-    ops::Range,
-};
+use std::{mem, ops::Range};
 
 #[derive(Clone, Copy, Debug, Default)]
 struct TextureSlotDesc {

wgpu-hal/src/gles/queue.rs

@@ -2,7 +2,6 @@ use super::{conv::is_layered_target, Command as C, PrivateCapabilities};
 use arrayvec::ArrayVec;
 use glow::HasContext;
 use std::{
-    mem::size_of,
     slice,
     sync::{atomic::Ordering, Arc},
 };

wgpu-hal/src/gles/wgl.rs

@@ -1,7 +1,7 @@
 use std::{
     collections::HashSet,
     ffi::{c_void, CStr, CString},
-    mem::{self, size_of, size_of_val, ManuallyDrop},
+    mem::{self, ManuallyDrop},
     os::raw::c_int,
     ptr,
     sync::{

wgpu-hal/src/metal/command.rs

@@ -1,6 +1,6 @@
 use super::{conv, AsNative, TimestampQuerySupport};
 use crate::CommandEncoder as _;
-use std::{borrow::Cow, mem::size_of, ops::Range};
+use std::{borrow::Cow, ops::Range};
 
 // has to match `Temp::binding_sizes`
 const WORD_SIZE: usize = 4;

wgpu-hal/src/vulkan/command.rs

@@ -3,11 +3,7 @@ use super::conv;
 use arrayvec::ArrayVec;
 use ash::vk;
 
-use std::{
-    mem::{self, size_of},
-    ops::Range,
-    slice,
-};
+use std::{mem, ops::Range, slice};
 
 const ALLOCATION_GRANULARITY: u32 = 16;
 const DST_IMAGE_LAYOUT: vk::ImageLayout = vk::ImageLayout::TRANSFER_DST_OPTIMAL;

wgpu-types/src/lib.rs

@@ -18,7 +18,6 @@ use serde::Deserialize;
 #[cfg(any(feature = "serde", test))]
 use serde::Serialize;
 use std::hash::{Hash, Hasher};
-use std::mem::size_of;
 use std::path::PathBuf;
 use std::{num::NonZeroU32, ops::Range};
 

wgpu/src/macros.rs

@@ -32,8 +32,6 @@ macro_rules! vertex_attr_array {
 
 #[test]
 fn test_vertex_attr_array() {
-    use std::mem::size_of;
-
     let attrs = vertex_attr_array![0 => Float32x2, 3 => Uint16x4];
     // VertexAttribute does not support PartialEq, so we cannot test directly
     assert_eq!(attrs.len(), 2);

wgpu/src/util/mod.rs

@@ -9,11 +9,7 @@ mod encoder;
 mod init;
 
 use std::sync::Arc;
-use std::{
-    borrow::Cow,
-    mem::{align_of, size_of},
-    ptr::copy_nonoverlapping,
-};
+use std::{borrow::Cow, ptr::copy_nonoverlapping};
 
 pub use belt::StagingBelt;
 pub use device::{BufferInitDescriptor, DeviceExt, TextureDataOrder};