feat(ext/fetch): Request.bytes() and Response.bytes()

cli/tsc/dts/lib.dom.d.ts

@@ -3156,6 +3156,7 @@ interface Body {
     arrayBuffer(): Promise<ArrayBuffer>;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/blob) */
     blob(): Promise<Blob>;
+    bytes(): Promise<Uint8Array>;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/formData) */
     formData(): Promise<FormData>;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/json) */

cli/tsc/dts/lib.webworker.d.ts

@@ -1029,6 +1029,7 @@ interface Body {
     arrayBuffer(): Promise<ArrayBuffer>;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/blob) */
     blob(): Promise<Blob>;
+    bytes(): Promise<Uint8Array>;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/formData) */
     formData(): Promise<FormData>;
     /** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Request/json) */

ext/fetch/22_body.js

@@ -296,6 +296,15 @@ function mixinBody(prototype, bodySymbol, mimeTypeSymbol) {
       configurable: true,
       enumerable: true,
     },
+    bytes: {
+      /** @returns {Promise<Uint8Array>} */
+      value: function bytes() {
+        return consumeBody(this, "bytes");
+      },
+      writable: true,
+      configurable: true,
+      enumerable: true,
+    },
     formData: {
       /** @returns {Promise<FormData>} */
       value: function formData() {
@@ -330,7 +339,7 @@ function mixinBody(prototype, bodySymbol, mimeTypeSymbol) {
 /**
  * https://fetch.spec.whatwg.org/#concept-body-package-data
  * @param {Uint8Array | string} bytes
- * @param {"ArrayBuffer" | "Blob" | "FormData" | "JSON" | "text"} type
+ * @param {"ArrayBuffer" | "Blob" | "FormData" | "JSON" | "text" | "bytes"} type
  * @param {MimeType | null} [mimeType]
  */
 function packageData(bytes, type, mimeType) {
@@ -341,6 +350,8 @@ function packageData(bytes, type, mimeType) {
       return new Blob([bytes], {
         type: mimeType !== null ? mimesniff.serializeMimeType(mimeType) : "",
       });
+    case "bytes":
+      return chunkToU8(bytes);
     case "FormData": {
       if (mimeType !== null) {
         const essence = mimesniff.essence(mimeType);

ext/fetch/lib.deno_fetch.d.ts

@@ -58,6 +58,10 @@ declare interface Body {
    * that resolves with a `Blob`.
    */
   blob(): Promise<Blob>;
+  /** Takes a `Response` stream and reads it to completion. It returns a promise
+   * that resolves with a `Uint8Array`.
+   */
+  bytes(): Promise<Uint8Array>;
   /** Takes a `Response` stream and reads it to completion. It returns a promise
    * that resolves with a `FormData` object.
    */

tests/wpt/runner/expectation.json

@@ -7112,6 +7112,8 @@
       "response": {
         "json.any.html": true,
         "json.any.worker.html": true,
+        "response-blob-realm.any.html": true,
+        "response-blob-realm.any.worker.html": true,
         "response-init-001.any.html": true,
         "response-init-001.any.worker.html": true,
         "response-init-002.any.html": true,