add steps about show-errors.js

.gitignore

@@ -4,6 +4,7 @@
 
 /docs
 /dist
+/show-errors
 
 # -- clip-for-deploy-end --
 

README.md

@@ -95,6 +95,14 @@ examples and inject the helper. Ideally there should be no errors.
 
 You can skip the first N tests with `-- --skip-count=<number>` (the first `--` is required).
 
+### show-errors.js
+
+You can generate show-errors.js with `npm run build-show-errors`.
+
+show-errors.js wraps calls to `pushErrorScope` and `popErrorScope` around every
+method of `GPUDevice` and `GPUQueue`. It is used in the
+[webgpu-dev-extension](https://github.com/greggman/webgpu-dev-extension).
+
 ## License
 
 [MIT](LICENSE.md)

tsconfig-show-errors.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "ESNext",
+    "module": "AMD",
+    "outFile": "show-errors/show-errors.js",
+    "allowJs": true,
+    "declaration": false,
+    "typeRoots": [
+      "./node_modules/@webgpu/types",
+      "./node_modules/@types",
+    ],
+  },
+
+  "include": [
+    "src/error-scope-wrapper.ts",
+  ],
+  "typeAcquisition": {
+    "include": ["@webgpu/types"]
+  }
+}