Re: [Xen-devel] [PATCH V3 10/13] libxl/gentypes.py: include discriminator in JSON output

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Apr 23, 2014 at 11:40:24PM +0100, Andrew Cooper wrote:
> On 23/04/2014 17:59, Wei Liu wrote:
> > Parser relies on the discriminator to go to correct branch.
> >
> > Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> > ---
> >  tools/libxl/gentypes.py |    5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/tools/libxl/gentypes.py b/tools/libxl/gentypes.py
> > index 61a2b3d..8d7183a 100644
> > --- a/tools/libxl/gentypes.py
> > +++ b/tools/libxl/gentypes.py
> > @@ -229,6 +229,11 @@ def libxl_C_type_gen_json(ty, v, indent = "    ", 
> > parent = None):
> >                  s += "        goto out;\n"
> >              s += "    break;\n"
> >          s += "}\n"
> > +        s += "s = yajl_gen_string(hand, (const unsigned char *)\"%s\", 
> > sizeof(\"%s\")-1);\n" \
> > +             % (ty.keyvar.name, ty.keyvar.name)
> 
> In python, all forms of string delimiter are equal, precisely to fix the
> problem demonstrated here.  This line can be made more legible using
> single quotes for the main string, at which point the double quotes
> around %s don't need escaping.
> 

Oh, I just wanted to be consistent with the reset of the file. :-)

Wei.

> ~Andrew
> 
> > +        s += "if (s != yajl_gen_status_ok)\n"
> > +        s += "    goto out;\n"
> > +        s += libxl_C_type_gen_json(ty.keyvar.type, (parent + 
> > ty.keyvar.name), indent, parent)
> >      elif isinstance(ty, idl.Struct) and (parent is None or ty.json_gen_fn 
> > is None):
> >          s += "s = yajl_gen_map_open(hand);\n"
> >          s += "if (s != yajl_gen_status_ok)\n"

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