fix: support wasm chunks (#190)

* fix: support wasm chunks

* Import from vendor

Author: ascorbic

edge-runtime/vendor.ts

@@ -14,7 +14,4 @@ import 'https://deno.land/std@0.175.0/path/mod.ts'
 import 'https://deno.land/x/path_to_regexp@v6.2.1/index.ts'
 import 'https://deno.land/x/html_rewriter@v0.1.0-pre.17/index.ts'
 
-import 'https://esm.sh/v91/next@12.2.5/deno/dist/server/web/spec-extension/request.js'
-import 'https://esm.sh/v91/next@12.2.5/deno/dist/server/web/spec-extension/response.js'
-
 import 'https://v1-7-0--edge-utils.netlify.app/logger/mod.ts'

src/build/functions/edge.ts

@@ -77,24 +77,41 @@ const writeHandlerFile = async (ctx: PluginContext, { matchers, name }: NextDefi
   )
 }
 
-const copyHandlerDependencies = async (ctx: PluginContext, { name, files }: NextDefinition) => {
+const copyHandlerDependencies = async (
+  ctx: PluginContext,
+  { name, files, wasm }: NextDefinition,
+) => {
   const edgeRuntimePath = join(ctx.pluginDir, 'edge-runtime')
   const srcDir = join(ctx.standaloneDir, '.next')
   const shimPath = join(edgeRuntimePath, 'shim/index.js')
   const shim = await readFile(shimPath, 'utf8')
   const imports = `import './edge-runtime-webpack.js';`
   const exports = `export default _ENTRIES["middleware_${name}"].default;`
+  const parts = [shim, imports]
+
+  if (wasm?.length) {
+    parts.push(
+      `import { decode as _base64Decode } from "../edge-runtime/vendor/deno.land/std@0.175.0/encoding/base64.ts";`,
+    )
+    for (const wasmChunk of wasm ?? []) {
+      const data = await readFile(join(srcDir, wasmChunk.filePath))
+      parts.push(
+        `const ${wasmChunk.name} = _base64Decode(${JSON.stringify(
+          data.toString('base64'),
+        )}).buffer`,
+      )
+    }
+  }
 
   await Promise.all(
     files.map(async (file) => {
       const destDir = join(ctx.edgeFunctionsDir, getHandlerName({ name }))
 
       if (file === `server/${name}.js`) {
         const entrypoint = await readFile(join(srcDir, file), 'utf8')
-        const parts = [shim, imports, entrypoint, exports]
 
         await mkdir(dirname(join(destDir, file)), { recursive: true })
-        await writeFile(join(destDir, file), parts.join('\n;'))
+        await writeFile(join(destDir, file), [...parts, entrypoint, exports].join('\n;'))
 
         return
       }

tests/netlify-e2e.json

@@ -145,12 +145,14 @@
     },
     "test/e2e/app-dir/app-routes/app-custom-route-base-path.test.ts": {
       "flakey": [
-        "app-custom-routes no response returned should print an error when no response is returned"
+        "app-custom-routes no response returned should print an error when no response is returned",
+        "app-custom-routes error conditions responds with 400 (Bad Request) when the requested method is not a valid HTTP method"
       ]
     },
     "test/e2e/app-dir/app-routes/app-custom-routes.test.ts": {
       "flakey": [
-        "app-custom-routes no response returned should print an error when no response is returned"
+        "app-custom-routes no response returned should print an error when no response is returned",
+        "app-custom-routes error conditions responds with 400 (Bad Request) when the requested method is not a valid HTTP method"
       ]
     },
     "test/e2e/app-dir/actions/app-action.test.ts": {