Re: [Xen-devel] [PATCH v7 5/9] libxl IDL: generate code to parse libxl__json_object to libxl_FOO struct

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2014-06-18 at 15:45 +0100, Wei Liu wrote:
> > and the second into just regular _libxl_types.h (it doesn't
> > require the application to opt into using yajl so it doesn't have to go
> > into _libxl_types_json.h)
> > 
> 
> I don't think it can work without YAJL.

It takes a const char * and returns a libxl device. The *application*
has no need to see any yajl, only libxl does, which is the distinction
here.

IOW from_json can be used by an application without ever #including
<yajl.h>

Contrast the libxl_foo_gen_json functions which take a "yajl_gen hand"
and therefore require that the application be using yajl itself

Ian.


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