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c++: use YYRHSLOC.

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* data/lalr1.cc (YYRHSLOC): New.
	(YYLLOC_DEFAULT): Use it.
	* data/glr.cc: If location_type was user defined, do not include
	location.hh, and do not produce location.hh and position.hh.
	* tests/calc.at (YYLLOC_DEFAULT): Use YYRHSLOC.
	Check that glr.cc supports user defined location_type.
	* NEWS: Document this.
(cherry picked from commit bb9191dd31)

Conflicts:

	ChangeLog
	NEWS
	data/lalr1.cc
	tests/calc.at
This commit is contained in:
Akim Demaille
2010-05-12 07:27:13 +02:00
parent baacae4971
commit e7bab2df96
5 changed files with 74 additions and 25 deletions
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35
NEWS
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@@ -180,6 +180,41 @@ Bison News
determine which destructor to call for the lookahead upon a syntax
error or upon parser return. This bug has been fixed.
** C++ parsers use YYRHSLOC
Similarly to the C parsers, the C++ parsers now define the YYRHSLOC
macro and use it in the default YYLLOC_DEFAULT. You are encouraged
to use it. If, for instance, your location structure has "first"
and "last" members, instead of
# define YYLLOC_DEFAULT(Current, Rhs, N) \
do \
if (N) \
{ \
(Current).first = (Rhs)[1].location.first; \
(Current).last = (Rhs)[N].location.last; \
} \
else \
{ \
(Current).first = (Current).last = (Rhs)[0].location.last; \
} \
while (false)
use:
# define YYLLOC_DEFAULT(Current, Rhs, N) \
do \
if (N) \
{ \
(Current).first = YYRHSLOC (Rhs, 1).first; \
(Current).last = YYRHSLOC (Rhs, N).last; \
} \
else \
{ \
(Current).first = (Current).last = YYRHSLOC (Rhs, 0).last; \
} \
while (false)
* Changes in version 2.4.3 (????-??-??):
** Problems with spawning M4 on at least FreeBSD 8 and FreeBSD 9 have