Nikita Kniazev 156bd18d17 Narrow Proto and Phoenix inclusion ...

Include needed parts at place where they are needed instead of including the
whole Proto library and significant parts of Phoenix in a few places.

Parsing time reported by Clang 9 with default (C++14) std:

was |now |gain|include
----|----|----|----------
4.45|4.22|5.2%|qi
4.52|4.23|7.5%|karma
4.37|3.99|9.7%|lex
3.75|3.47|7.5%|qi_numeric

There were phoenix/limits.hpp inclusion before every Proto inclusion to override
Proto limits with Phoenix limits values. It has no value in C++11+ world, and
poisons code too much as the number of places where Proto headers now included
increased, so I did not replicate it.

2019-11-29 03:20:30 +03:00

2.8 KiB

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