generate a swap() method for all generated structs

From baa275da65e023af50930a75f9a7ef2a991cdaef Mon Sep 17 00:00:00 2001
From: Adam Simpkins <simpkins@fb.com>
Date: Mon, 21 Jun 2010 20:24:50 +0000
Subject: [PATCH 3/5] generate a swap() method for all generated structs

Summary:
Andrei mentioned it would be convenient if thrift generated swap()
methods for all C++ thrift types. Apparently the ads team manually
writes swap() functions for many of their thrift data types, but have to
keep updating them by hand when new fields are added to the thrift
interface.

This updates the thrift compiler to emit swap() methods for user-defined
types. For now, I decided not to emit swap() methods for the internal
XXX_args, XXX_pargs, XXX_result, and XXX_presult types.

Test Plan:
Tested compiling serveral internal projects.
I didn't actually test the generated swap() functions, but they look
okay.

DiffCamp Revision: 124773
Reviewed By: aalexandre
Commenters: dreiss, edhall
CC: davidrecordon, achao, dreiss, kholst, aalexandre, simpkins, edhall,
thrift-team@lists
Revert Plan:
OK

git-svn-id: svn+ssh://tubbs/svnapps/fbomb/trunk/[internal fb thing]@30392 2248de34-8caa-4a3c-bc55-5e52d9d7b73a
—
compiler/cpp/src/generate/t_cpp_generator.cc | 70 ++++++++++++++++++++++++-
1 files changed, 67 insertions, 3 deletions