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Author Joshua.Landau
Recipients Jeff.Kaufman, Joshua.Landau, NeilGirdhar, Rosuav, SpaghettiToastBook, andybuckley, belopolsky, berker.peksag, eric.araujo, eric.snow, ezio.melotti, georg.brandl, gvanrossum, ncoghlan, paul.moore, pconnell, r.david.murray, terry.reedy, twouters, zbysz
Date 2015-01-22.14:32:43
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I've looked at BUILD_MAP(n). It seems to work and has speed improvements but:

- I was wrong about the 16-bit int thing. It turns out CPython is happily treating them as 32 bit as long as they are prefixed by an EXTENDED_ARG bytecode

This could be used by BUILD_MAP rather than falling back to BUILD_MAP_UNPACK.

- It's probably best to not include it here, since it's a disjoint issue. This patch wouldn't really be affected by its absence.

Also, if we limit BUILD_MAP_MERGE to 255 dictionaries, this will also apply to the {**a, **b, **c, ...} syntax, although I really can't see it being a problem.
Date User Action Args
2015-01-22 14:32:44Joshua.Landausetrecipients: + Joshua.Landau, gvanrossum, twouters, georg.brandl, terry.reedy, paul.moore, ncoghlan, belopolsky, ezio.melotti, eric.araujo, andybuckley, r.david.murray, zbysz, eric.snow, Rosuav, berker.peksag, pconnell, NeilGirdhar, Jeff.Kaufman, SpaghettiToastBook
2015-01-22 14:32:44Joshua.Landausetmessageid: <>
2015-01-22 14:32:44Joshua.Landaulinkissue2292 messages
2015-01-22 14:32:43Joshua.Landaucreate