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lalr1.cc: support compilation with disabled support for exceptions

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Reported by Brooks Moses <bmoses@google.com>
http://lists.gnu.org/archive/html/bison-patches/2018-02/msg00000.html

* data/lalr1.cc (YY_EXCEPTIONS): New.
Use it to disable try/catch clauses.

* doc/bison.texi (C++ Parser Interface): Document it.

* configure.ac (CXXFLAGS_NO_EXCEPTIONS): New.
* tests/atlocal.in: Receive it.
* tests/local.at (AT_FULL_COMPILE, AT_LANG_COMPILE):
Accept a new argument, extra compiler flags.
* tests/calc.at: Run the C++ calculator with exception support disabled.
This commit is contained in:
Akim Demaille
2018-08-17 19:28:50 +02:00
parent 32e0fd1a99
commit 44e76d801f
8 changed files with 68 additions and 28 deletions
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13
tests/calc.at
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@@ -481,20 +481,20 @@ m4_define([AT_CHECK_SPACES],
])
# AT_CHECK_CALC([BISON-OPTIONS])
# ------------------------------
# AT_CHECK_CALC([BISON-OPTIONS], [COMPILER-OPTIONS])
# --------------------------------------------------
# Start a testing chunk which compiles 'calc' grammar with
# BISON-OPTIONS, and performs several tests over the parser.
m4_define([AT_CHECK_CALC],
[m4_ifval([$2], [m4_fatal([$0: expected a single argument])])
[m4_ifval([$3], [m4_fatal([$0: expected at most two arguments])])
# We use integers to avoid dependencies upon the precision of doubles.
AT_SETUP([Calculator $1])
AT_SETUP([Calculator $1 $2])
AT_BISON_OPTION_PUSHDEFS([$1])
AT_DATA_CALC_Y([$1])
AT_FULL_COMPILE([calc], AT_DEFINES_IF([[lex], [main]]))
AT_FULL_COMPILE([calc], AT_DEFINES_IF([[lex], [main]]), [], [$2])
AT_CHECK_SPACES(m4_join([ ],
[calc.AT_SKEL_CC_IF([cc], [c])],
[AT_DEFINES_IF([calc.AT_SKEL_CC_IF([hh], [h])])]))
@@ -677,10 +677,11 @@ AT_CHECK_CALC([%skeleton "lalr1.cc" %defines])
# Start a testing chunk which compiles 'calc' grammar with
# the C++ skeleton, and performs several tests over the parser.
m4_define([AT_CHECK_CALC_LALR1_CC],
[AT_CHECK_CALC([%language "C++"] $@)])
[AT_CHECK_CALC([%language "C++" $1], [$2])])
AT_CHECK_CALC_LALR1_CC([])
AT_CHECK_CALC_LALR1_CC([%locations])
AT_CHECK_CALC_LALR1_CC([%locations], [$CXXFLAGS_NO_EXCEPTIONS])
AT_CHECK_CALC_LALR1_CC([%locations %define api.location.type {Span}])
AT_CHECK_CALC_LALR1_CC([%defines %locations %define parse.error verbose %name-prefix "calc" %verbose %yacc])