diff --git a/fetch.bs b/fetch.bs index 81611d005..954d23090 100644 --- a/fetch.bs +++ b/fetch.bs @@ -4393,6 +4393,7 @@ typedef (Blob or BufferSource or FormData or URLSearchParams or ReadableStream o 
[NoInterfaceObject,
  Exposed=(Window,Worker)]
 interface Body {
+  readonly attribute ReadableStream? body;
   readonly attribute boolean bodyUsed;
   [NewObject] Promise<ArrayBuffer> arrayBuffer();
   [NewObject] Promise<Blob> blob();
@@ -4420,6 +4421,9 @@ non-null and its stream is
 non-null and its stream is
 locked.
 
+
The body attribute's getter must return null if
+body is null and body's stream otherwise.
+
 
The bodyUsed attribute's getter must
 return true if disturbed, and false otherwise.
 
@@ -4880,6 +4884,8 @@ constructor must run these steps:
  inputBody is non-null, and request's method is
  `GET` or `HEAD`, then throw a TypeError.
 
+ 
  • Let body be inputBody.
+
  
  • 
   
    If init's body member is present and is non-null, run these
   substeps:
@@ -4888,11 +4894,11 @@ constructor must run these steps:
    
  • Let Content-Type be null.
 
    
  • If init's keepalive member is present and is true, then set
-   inputBody and Content-Type to the result of
+   body and Content-Type to the result of
    extracting init's body
    member, with keepalive flag set. Rethrow any exceptions.
 
-   
  • Otherwise, set inputBody and Content-Type to the result of
+   
  • Otherwise, set body and Content-Type to the result of
    extracting init's
    body member. Rethrow any exceptions.
 
@@ -4905,7 +4911,7 @@ constructor must run these steps:
   
 
  
  • 
-  
    If inputBody is non-null and inputBody's source is
+  
    If body is non-null and body's source is
   null, then run these substeps:
 
   
      
@@ -4916,49 +4922,36 @@ constructor must run these steps:
    use-CORS-preflight flag.
   
    
 
- 
  • Set r's request's
- body to inputBody.
  
 
- 
  • Set r's MIME type to
- the result of extracting a MIME type
- from r's request's
- header list.
-
  
  • 
-  
    If input is a {{Request}} object and
-  input's request's
-  body is non-null, run these substeps:
+  
    If inputBody is non-null, then run these substeps:
 
   
      
-   
    1. Let dummyStream be an empty
-   {{ReadableStream}} object.
+   
    2. 
+    
      Let rs bs a {{ReadableStream}} object from which one can read the exactly
+    same data as one could read from inputBody's stream.
 
-   
    3. Set input's request's
-   body to a new body whose
-   stream is dummyStream.
+    
      This will be specified more precisely once
+    transform stream and
+    piping are precisely defined.
+    See the issue.
 
-   
    4. 
-    
      Let reader be the result of getting a reader
-    from dummyStream.
-    
      This operation will not throw an exception.
+    
      This makes inputBody's stream
+    locked and disturbed immediately.
 
-   
    5. 
-    
      Read all bytes from
-    dummyStream with reader.
-    
      This operation makes dummyStream disturbed.
+   
    6. If inputBody is body, then set body to a new
+   body whose stream is rs, whose source
+   is inputBody's source and whose total bytes is
+   inputBody's total bytes.
   
    
 
-  
    These substeps are meant to produce the observable equivalent of
-  "piping" input's body's
-  stream into r. That is, input is
-  left with a body with a
-  {{ReadableStream}} object that is
-  disturbed and
-  locked, while the data readable from
-  r's body's
-  stream is now equal to what used to be input's,
-  if input's original body is non-null.
+ 
  • Set r's request's body to body.
+
+ 
  • Set r's MIME type to
+ the result of extracting a MIME type
+ from r's request's
+ header list.
 
  
  • Return r.
 
@@ -5051,7 +5044,6 @@ interface Response {
   readonly attribute boolean ok;
   readonly attribute ByteString statusText;
   [SameObject] readonly attribute Headers headers;
-  readonly attribute ReadableStream? body;
   [SameObject] readonly attribute Promise<Headers> trailer;
 
   [NewObject] Response clone();
@@ -5232,10 +5224,6 @@ must return response's
 
    The headers attribute's getter must
 return the associated {{Headers}} object.
 
-
    The body attribute's getter must return null if
-the associated body is null and the associated
-body's stream otherwise.
-
 
    The trailer attribute's getter must return the
 associated trailer promise.