feat: implement Response.clone()

builtins/web/fetch/request-response.h

@@ -187,6 +187,7 @@ class Response final : public BuiltinImpl<Response> {
 
   static bool redirect(JSContext *cx, unsigned argc, JS::Value *vp);
   static bool json(JSContext *cx, unsigned argc, JS::Value *vp);
+  static bool clone(JSContext *cx, unsigned argc, JS::Value *vp);
 
 public:
   static constexpr const char *class_name = "Response";

tests/wpt-harness/expectations/fetch/api/abort/general.any.js.json

@@ -84,7 +84,7 @@
     "status": "PASS"
   },
   "Request is still 'used' if signal is aborted before fetching": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "response.arrayBuffer() rejects if already aborted": {
     "status": "PASS"
@@ -147,7 +147,7 @@
     "status": "FAIL"
   },
   "Stream will not error if body is empty. It's closed with an empty queue before it errors.": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "Readable stream synchronously cancels with AbortError if aborted before reading": {
     "status": "PASS"
@@ -158,4 +158,4 @@
   "Clone aborts with original controller": {
     "status": "PASS"
   }
-}
+}

tests/wpt-harness/expectations/fetch/api/body/mime-type.any.js.json

@@ -0,0 +1,62 @@
+{
+  "Request: overriding explicit Content-Type": {
+    "status": "FAIL"
+  },
+  "Response: overriding explicit Content-Type": {
+    "status": "FAIL"
+  },
+  "Request: removing implicit Content-Type": {
+    "status": "PASS"
+  },
+  "Response: removing implicit Content-Type": {
+    "status": "PASS"
+  },
+  "Request: setting missing Content-Type": {
+    "status": "FAIL"
+  },
+  "Response: setting missing Content-Type": {
+    "status": "FAIL"
+  },
+  "Request: MIME type for Blob from empty body": {
+    "status": "PASS"
+  },
+  "Response: MIME type for Blob from empty body": {
+    "status": "PASS"
+  },
+  "Request: MIME type for Blob from empty body with Content-Type": {
+    "status": "FAIL"
+  },
+  "Response: MIME type for Blob from empty body with Content-Type": {
+    "status": "FAIL"
+  },
+  "Request: MIME type for Blob": {
+    "status": "PASS"
+  },
+  "Response: MIME type for Blob": {
+    "status": "PASS"
+  },
+  "Request: MIME type for Blob with non-empty type": {
+    "status": "FAIL"
+  },
+  "Response: MIME type for Blob with non-empty type": {
+    "status": "FAIL"
+  },
+  "Request: Extract a MIME type with clone": {
+    "status": "FAIL"
+  },
+  "Response: Extract a MIME type with clone": {
+    "status": "FAIL"
+  },
+  "Request: Content-Type in headers wins Blob\"s type": {
+    "status": "FAIL"
+  },
+  "Response: Content-Type in headers wins Blob\"s type": {
+    "status": "FAIL"
+  },
+  "Request: setting missing Content-Type in headers and it wins Blob\"s type": {
+    "status": "FAIL"
+  },
+  "Response: setting missing Content-Type in headers and it wins Blob\"s type": {
+    "status": "FAIL"
+  }
+}

tests/wpt-harness/expectations/fetch/api/request/request-disturbed.any.js.json

@@ -15,7 +15,7 @@
     "status": "PASS"
   },
   "Input request used for creating new request became disturbed": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "Input request used for creating new request became disturbed even if body is not used": {
     "status": "FAIL"

tests/wpt-harness/expectations/fetch/api/response/response-clone.any.js.json

@@ -0,0 +1,65 @@
+{
+  "Check Response's clone with default values, without body": {
+    "status": "PASS"
+  },
+  "Check Response's clone has the expected attribute values": {
+    "status": "PASS"
+  },
+  "Check orginal response's body after cloning": {
+    "status": "PASS"
+  },
+  "Check cloned response's body": {
+    "status": "PASS"
+  },
+  "Cannot clone a disturbed response": {
+    "status": "PASS"
+  },
+  "Cloned responses should provide the same data": {
+    "status": "PASS"
+  },
+  "Cancelling stream should not affect cloned one": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Int8Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Int16Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Int32Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (ArrayBufferchunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Uint8Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Uint8ClampedArraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Uint16Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Uint32Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (BigInt64Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (BigUint64Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Float16Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Float32Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (Float64Arraychunk)": {
+    "status": "PASS"
+  },
+  "Check response clone use structureClone for teed ReadableStreams (DataViewchunk)": {
+    "status": "PASS"
+  }
+}

tests/wpt-harness/expectations/fetch/api/response/response-stream-disturbed-6.any.js.json

@@ -1,17 +1,17 @@
 {
   "A non-closed stream on which read() has been called": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "A non-closed stream on which cancel() has been called": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "A closed stream on which read() has been called": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "An errored stream on which read() has been called": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "An errored stream on which cancel() has been called": {
-    "status": "FAIL"
+    "status": "PASS"
   }
 }

tests/wpt-harness/expectations/fetch/api/response/response-stream-disturbed-by-pipe.any.js.json

@@ -1,8 +1,8 @@
 {
   "using pipeTo on Response body should disturb it synchronously": {
-    "status": "FAIL"
+    "status": "PASS"
   },
   "using pipeThrough on Response body should disturb it synchronously": {
-    "status": "FAIL"
+    "status": "PASS"
   }
 }