From ff5c9c9ffcb4e21b9b43e6e823f1c230a8e1b84a Mon Sep 17 00:00:00 2001
From: Dzmitry Malyshau <kvarkus@gmail.com>
Date: Fri, 19 Jun 2020 11:14:29 -0400
Subject: [PATCH 1/2] Naga update with offsets and strides

---
 Cargo.lock                  |  2 +-
 wgpu-core/Cargo.toml        |  2 +-
 wgpu-core/src/validation.rs | 24 +++++++++++++++++-------
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 259490e1b2..fc17f1ef1b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -742,7 +742,7 @@ dependencies = [
 [[package]]
 name = "naga"
 version = "0.1.0"
-source = "git+https://github.com/gfx-rs/naga?rev=e3aea9619865b16a24164d46ab29cca36ad7daf2#e3aea9619865b16a24164d46ab29cca36ad7daf2"
+source = "git+https://github.com/gfx-rs/naga?rev=a9228d2aed38c71388489a95817238ff98198fa3#a9228d2aed38c71388489a95817238ff98198fa3"
 dependencies = [
  "bitflags",
  "fxhash",
diff --git a/wgpu-core/Cargo.toml b/wgpu-core/Cargo.toml
index 8e35c36345..a62c86a832 100644
--- a/wgpu-core/Cargo.toml
+++ b/wgpu-core/Cargo.toml
@@ -35,7 +35,7 @@ vec_map = "0.8.1"
 
 [dependencies.naga]
 git = "https://github.com/gfx-rs/naga"
-rev = "e3aea9619865b16a24164d46ab29cca36ad7daf2"
+rev = "a9228d2aed38c71388489a95817238ff98198fa3"
 
 [dependencies.gfx-descriptor]
 git = "https://github.com/gfx-rs/gfx-extras"
diff --git a/wgpu-core/src/validation.rs b/wgpu-core/src/validation.rs
index 0c0c19b2b4..6a94389874 100644
--- a/wgpu-core/src/validation.rs
+++ b/wgpu-core/src/validation.rs
@@ -83,16 +83,26 @@ fn get_aligned_type_size(
         Ti::Pointer { .. } => 4,
         Ti::Array {
             base,
-            size: naga::ArraySize::Static(size),
-        } => size as wgt::BufferAddress * get_aligned_type_size(module, base, false),
+            size: naga::ArraySize::Static(count),
+            stride,
+        } => {
+            let base_size = match stride {
+                Some(stride) => stride.get() as wgt::BufferAddress,
+                None => get_aligned_type_size(module, base, false),
+            };
+            base_size * count as wgt::BufferAddress
+        }
         Ti::Array {
             base,
             size: naga::ArraySize::Dynamic,
-        } if allow_unbound => get_aligned_type_size(module, base, false),
-        Ti::Struct { ref members } => members
-            .iter()
-            .map(|member| get_aligned_type_size(module, member.ty, false))
-            .sum(),
+            stride,
+        } if allow_unbound => match stride {
+            Some(stride) => stride.get() as wgt::BufferAddress,
+            None => get_aligned_type_size(module, base, false),
+        },
+        Ti::Struct { ref members } => members.last().map_or(0, |member| {
+            member.offset as wgt::BufferAddress + get_aligned_type_size(module, member.ty, false)
+        }),
         _ => panic!("Unexpected struct field"),
     }
 }

From 0c0ecc3b099de9db9f3c71100fef4b459b9b2a10 Mon Sep 17 00:00:00 2001
From: Dzmitry Malyshau <kvarkus@gmail.com>
Date: Fri, 19 Jun 2020 11:16:29 -0400
Subject: [PATCH 2/2] Switch to latest nightly

---
 .github/workflows/ci.yml | 3 +--
 Cargo.lock               | 4 ++--
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6db7448305..e5e1ab88d6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -96,8 +96,7 @@ jobs:
         name: Install latest nightly
         uses: actions-rs/toolchain@v1
         with:
-          # temporary due to https://github.com/Xudong-Huang/generator-rs/issues/21
-          toolchain: nightly-2020-05-01
+          toolchain: nightly
           override: true
       - if: matrix.channel == 'stable'
         run: rustup component add clippy
diff --git a/Cargo.lock b/Cargo.lock
index fc17f1ef1b..f335c8580c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -350,9 +350,9 @@ dependencies = [
 
 [[package]]
 name = "generator"
-version = "0.6.20"
+version = "0.6.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caaa160efb38ce00acbe4450d41a103fb3d2acdb17ff09a7cf38f3ac26af0738"
+checksum = "add72f17bb81521258fcc8a7a3245b1e184e916bfbe34f0ea89558f440df5c68"
 dependencies = [
  "cc",
  "libc",