[Streams API] Implement ReadableStream js source "'cancel" callback

• Component: WebCore Misc.
• Status: RESOLVED FIXED

[youenn fablet]

Implement step 5 and 6 of https://streams.spec.whatwg.org/#cancel-readable-stream

[youenn fablet]

Created attachment 255346 [details]
Patch

[Darin Adler]

Comment on attachment 255346 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=255346&action=review

> Source/WebCore/bindings/js/ReadableJSStream.cpp:164
> +static JSFunction* createCancelResultFulfilledFunction(ExecState& exec, ReadableJSStream& jsStream)

I would name this argument “stream”, not “jsStream”. I don’t think the prefix does anything significant to help programmers understand the code.

> Source/WebCore/bindings/js/ReadableJSStream.cpp:166
> +    RefPtr<ReadableJSStream> readableStream = &jsStream;

I know we need a different name for this local, but it seems that adding the word “readable” doesn’t do much good to explain why a local variable is needed. I think protectedStream would be a better name.

> Source/WebCore/bindings/js/ReadableJSStream.cpp:185
> +    ExecState& exec= *globalObject()->globalExec();

Missing space before "=". I suggest in new code we use “state” for our ExecState& and we can keep using “exec” for ExecState*.

[youenn fablet]

Created attachment 255403 [details]
Patch for landing

[WebKit Commit Bot]

Comment on attachment 255403 [details]
Patch for landing

Clearing flags on attachment: 255403

Committed r185872: <http://trac.webkit.org/changeset/185872>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.