Update to latest wgpu-core (#184)

Cargo.toml

@@ -25,15 +25,15 @@ default = []
 [dependencies.wgc]
 package = "wgpu-core"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "ec1d022"
+rev = "988990c"
 # path = "../wgpu/wgpu-core"
 #version = "0.11"
 features = ["raw-window-handle", "trace"]
 
 [dependencies.wgt]
 package = "wgpu-types"
 git = "https://github.com/gfx-rs/wgpu"
-rev = "ec1d022"
+rev = "988990c"
 # path = "../wgpu/wgpu-types"
 #version = "0.11"
 
@@ -46,7 +46,7 @@ thiserror = "1"
 
 [dependencies.naga]
 git = "https://github.com/gfx-rs/naga"
-rev = "8ffd6ba"
+rev = "f90e563"
 features = ["spv-in"]
 
 [build-dependencies]

examples/compute/shader.wgsl

@@ -1,9 +1,6 @@
-struct PrimeIndices {
-    data: [[stride(4)]] array<u32>;
-}; // this is used as both input and output for convenience
-
-[[group(0), binding(0)]]
-var<storage, read_write> v_indices: PrimeIndices;
+@group(0)
+@binding(0)
+var<storage, read_write> v_indices: array<u32>;  // this is used as both input and output for convenience
 
 // The Collatz Conjecture states that for any integer n:
 // If n is even, n = n/2
@@ -34,7 +31,8 @@ fn collatz_iterations(n_base: u32) -> u32{
     return i;
 }
 
-[[stage(compute), workgroup_size(1)]]
-fn main([[builtin(global_invocation_id)]] global_id: vec3<u32>) {
-    v_indices.data[global_id.x] = collatz_iterations(v_indices.data[global_id.x]);
+@stage(compute)
+@workgroup_size(1)
+fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
+    v_indices[global_id.x] = collatz_iterations(v_indices[global_id.x]);
 }

examples/triangle/shader.wgsl

@@ -1,11 +1,11 @@
-[[stage(vertex)]]
-fn vs_main([[builtin(vertex_index)]] in_vertex_index: u32) -> [[builtin(position)]] vec4<f32> {
+@stage(vertex)
+fn vs_main(@builtin(vertex_index) in_vertex_index: u32) -> @builtin(position) vec4<f32> {
     let x = f32(i32(in_vertex_index) - 1);
     let y = f32(i32(in_vertex_index & 1u) * 2 - 1);
     return vec4<f32>(x, y, 0.0, 1.0);
 }
 
-[[stage(fragment)]]
-fn fs_main() -> [[location(0)]] vec4<f32> {
+@stage(fragment)
+fn fs_main() -> @location(0) vec4<f32> {
     return vec4<f32>(1.0, 0.0, 0.0, 1.0);
 }