[webkit-gtk] JavaScriptCore with wekbitgtkv1?

[Adrian Perez de Castro]

On Sat, 28 Apr 2018 13:51:36 +0300, Adrian Perez de Castro <aperez at igalia.com> wrote:
> On Fri, 27 Apr 2018 14:29:16 -0400, Anthony Walter <sysrpl at gmail.com> wrote:
> > Ah okay, so reading from the news at webkitgtk.org i see:
> > 
> > https://webkitgtk.org/2018/04/18/webkitgtk2.21.1-released.html
> > 
> > Add initial JavaScriptCore GLib API
> > 
> > So I guess the JavaScriptCore GLib API is new and not in any repositories
> > yet. If i want to try it I'll have to build from sources.
> 
> Yes, I did not mention the new GLib-based C API because it is only available
> on development releases like 2.21.1, but the “traditional” JSC plain C API
> has been available since forever. The idea with the new GLib-based API is
> to provide a more idiomatic API which plays nicely with the rest of the
> WebKitGTK+ API, *and* that is also usable with GObject-Introspection to
> allow e.g. Python or Lua language bindings without having to manually wrap
> the plain C JSC API.
> 
> If you are going to keep using the old WebKitGTK+ version you mentioned in
> your first e-mail, you will only have available the plain C JSC API. That
> would be the case also if you would switch to the latest *stable* release.
> To use the new GLib-based API you need the 2.21.1 *development* release, or
> wait for 2.22.0, which will be the first stable release which will include
> it.
> 
> So, summarizing:
> 
>  - The plain C JSC API is available in all releases before 2.21.1, both
>    old WebKit1- (single-process) and WebKit2-based (multiprocess) versions
>    of WebKitGTK+.

Also, for the plain C JSC API, you want libjavascriptcoregtk-4.0 for recent
releases, e.g.:

  % nm -D /usr/lib/libjavascriptcoregtk-4.0.so | grep 'T JS'
  0000000000354bb0 T JSCheckScriptSyntax
  0000000000363730 T JSClassCreate
  00000000003637a0 T JSClassRelease
  0000000000363790 T JSClassRetain
  0000000000356210 T JSContextCreateBacktrace
  0000000000355c90 T JSContextGetGlobalContext
  0000000000355b60 T JSContextGetGlobalObject
  ...

You can find out the compiler and linker flags using pkg-config as usual:

  % pkg-config javascriptcoregtk-4.0 --cflags --libs

In older releases the name of the libary and the pkg-config used to be
different, IIRC the suffix was not “-4.0”.

>  - For the new GLib JSC API, you need 2.21.1 (if you can use a development
>    release), or wait for the 2.22.0 stable.
> 
> I hope the situation is clearer now :-)
> 
> Cheers,
> 
> 
> --
>  Adrián 🎩
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