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2a0185b69323756acacf0e88ae5071c5993ce041
bison/tests/local.at
Akim Demaille 2a0185b693 tests: avoid $(...) 
Reported by Paul Eggert.

* tests/local.at (AT_DATA_NO_FINAL_EOL): here.
2019-10-15 07:01:06 +02:00

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# Process this -*- Autotest -*- file with autom4te.
# Macros for the GNU Bison Test suite.
# Copyright (C) 2003-2015, 2018-2019 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
m4_version_prereq([2.58])
# m4_null_if(VAL, IF-TRUE, IF-FALSE)
# ----------------------------------
# If VAL evaluates to empty or 0, run IF-TRUE, otherwise IF-FALSE.
m4_define([m4_null_if],
[m4_case(m4_quote($1),
[0], [$2],
[], [$2],
[$3])])
# AT_SETUP_STRIP(TITLE)
# ---------------------
# Abbreviate the TITLE to be passed to AT_SETUP. Remove new-lines
# that completely break AT_SETUP.
m4_define([AT_SETUP_STRIP],
[m4_bpatsubsts([$1],
[%\(language\|skeleton\) "?\([^\" ]*\)"?],
[\2],
[%define "?\([-A-Za-z0-9_.]+\)"? \({[^\}]+}\|"[^\"]+"\|[-A-Za-z0-9_.]+\)],
[\1=\2],
[%define "?\([-A-Za-z0-9_.]+\)"?],
[\1],
[ *
+ *], [ ])dnl
])
# AT_DATA_NO_FINAL_EOL(FILE, CONTENT)
# -----------------------------------
# Same as AT_DATA, except that CONTENT has no the final end of line.
#
# FIXME: AT_DATA or some variant of AT_DATA may eventually permit
# the final newline to be omitted. See the threads starting at
# <http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00019.html>.
m4_define([AT_DATA_NO_FINAL_EOL],
[AT_DATA([$1], [$2
])
AT_REQUIRE([
set x `LC_ALL=C ls -l '$1'` &&
size=$][6 &&
{ test $size -eq 0 || dd obs=1 seek=`expr $size - 1` if=/dev/null of='$1'; }],
[], [ignore], [ignore])
])
## ------------- ##
## Basic tests. ##
## ------------- ##
# AT_PERL_CHECK(PERL-ARGS, ...)
# -----------------------------
# If Perl is available, run this test.
m4_define([AT_PERL_CHECK],
[if test x"$PERL" != x; then
AT_CHECK(["$PERL" $1], [$2], [$3], [$4])
fi
])
# AT_REQUIRE(CMD, ...)
# --------------------
# Same as AT_CHECK(...) but skip this test if we failed.
m4_define([AT_REQUIRE],
[AT_CHECK([$1 || exit 77], [$2], [$3], [$4])])
# AT_PERL_REQUIRE(PERL-ARGS, ...)
# -------------------------------
# Run this Perl program, or skip the test if Perl is not available.
m4_define([AT_PERL_REQUIRE],
[AT_REQUIRE(["$PERL" $1], [$2], [$3], [$4])])
# AT_MATCHES_CHECK(FILE, PERL-REGEXP, COUNT)
# ------------------------------------------
# Expect COUNT matches of the PERL-REGEXP in FILE. The file is
# taken in "slurp" mode, i.e., one can match end-of-lines.
m4_define([AT_MATCHES_CHECK],
[AT_PERL_CHECK([-0777 -ne '
my $count = 0;
s{$2}{ ++$count; "" }gem;
printf "$count\n";' $1], [0], [$3
])])
# AT_SAVE_SPECIAL_FILES / AT_RESTORE_SPECIAL_FILES
# ------------------------------------------------
# Don't interfere with caller's files.
m4_divert_text([PREPARE_TESTS],
[at_save_special_files ()
{
for at_save_file in stderr experr expout
do
test ! -f at-bison-check-$at_save_file.bak ||
as_fn_error 1 "fatal error: back-up on top of a back-up"
test ! -f $at_save_file || mv $at_save_file at-bison-check-$at_save_file.bak
done
}
at_restore_special_files ()
{
for at_save_file in stderr experr expout
do
test ! -f at-bison-check-$at_save_file.bak ||
mv at-bison-check-$at_save_file.bak $at_save_file
done
}
])
m4_define([AT_SAVE_SPECIAL_FILES], [at_save_special_files])
m4_define([AT_RESTORE_SPECIAL_FILES], [at_restore_special_files])
## ------------------------------- ##
## Macros decoding Bison options. ##
## ------------------------------- ##
# AT_LOC_PUSHDEF(FIRST-LINE, FIRST-COLUMN, LAST-LINE, LAST-COLUMN)
# ----------------------------------------------------------------
# Pushdef AT(_LOC)?_(FIRST|LAST)_(LINE|COLUMN).
m4_define([AT_LOC_PUSHDEF],
[m4_pushdef([AT_FIRST_LINE], [$1])
m4_pushdef([AT_FIRST_COLUMN], [$2])
m4_pushdef([AT_LAST_LINE], [$3])
m4_pushdef([AT_LAST_COLUMN], [$4])
m4_pushdef([AT_LOC_FIRST_LINE], [AT_LOC.AT_FIRST_LINE])
m4_pushdef([AT_LOC_FIRST_COLUMN], [AT_LOC.AT_FIRST_COLUMN])
m4_pushdef([AT_LOC_LAST_LINE], [AT_LOC.AT_LAST_LINE])
m4_pushdef([AT_LOC_LAST_COLUMN], [AT_LOC.AT_LAST_COLUMN])])
# AT_LOC_POPDEF
# -------------
# Popdef AT(_LOC)?_(FIRST|LAST)_(LINE|COLUMN).
m4_define([AT_LOC_POPDEF],
[m4_popdef([AT_LOC_FIRST_LINE])
m4_popdef([AT_LOC_FIRST_COLUMN])
m4_popdef([AT_LOC_LAST_LINE])
m4_popdef([AT_LOC_LAST_COLUMN])
m4_popdef([AT_FIRST_LINE])
m4_popdef([AT_FIRST_COLUMN])
m4_popdef([AT_LAST_LINE])
m4_popdef([AT_LAST_COLUMN])
])
# AT_BISON_OPTION_PUSHDEFS([BISON-OPTIONS])
# -----------------------------------------
m4_define([AT_BISON_OPTION_PUSHDEFS],
[m4_divert_text([KILL],
[_AT_BISON_OPTION_PUSHDEFS($[1], $[2], [$1])])])
# _AT_BISON_OPTION_PUSHDEFS($1, $2, [BISON-OPTIONS])
# --------------------------------------------------
# This macro works around the impossibility to define macros
# inside macros, because issuing '[$1]' is not possible in M4 :(.
# This sucks hard, GNU M4 should really provide M5-like $$1.
m4_define([_AT_BISON_OPTION_PUSHDEFS],
[m4_pushdef([AT_BISON_OPTIONS], [$3])
m4_if([$1$2], $[1]$[2], [],
[m4_fatal([$0: invalid arguments: $@])])dnl
m4_pushdef([AT_AUTOMOVE_IF],
[m4_bmatch([$3], [%define api\.value\.automove], [$1], [$2])])
m4_pushdef([AT_DEFINES_IF],
[m4_bmatch([$3], [%defines], [$1], [$2])])
m4_pushdef([AT_DEBUG_IF],
[m4_bmatch([$3], [%debug\|%define parse.trace], [$1], [$2])])
m4_pushdef([AT_CXX_IF],
[m4_bmatch([$3], [%language "[Cc]\+\+"\|%skeleton "[a-z0-9]+\.cc"], [$1], [$2])])
m4_pushdef([AT_D_IF],
[m4_bmatch([$3], [%language "[Dd]"\|%skeleton "[a-z0-9]+\.d"], [$1], [$2])])
m4_pushdef([AT_JAVA_IF],
[m4_bmatch([$3], [%language "[Jj][Aa][Vv][Aa]"\|%skeleton "[a-z0-9]+\.java"], [$1], [$2])])
# The target language: "c", "c++", or "java".
m4_pushdef([AT_LANG],
[AT_JAVA_IF([java],
[AT_CXX_IF([c++],
[AT_D_IF([d],
[c])])])])
m4_pushdef([AT_C_IF],
[m4_if(AT_LANG, [c], [$1], [$2])])
m4_pushdef([AT_GLR_IF],
[m4_bmatch([$3], [%glr-parser\|%skeleton "glr\..*"], [$1], [$2])])
m4_pushdef([AT_LALR1_CC_IF],
[AT_CXX_IF([AT_GLR_IF([$2], [$1])], [$2])])
m4_pushdef([AT_GLR_CC_IF],
[AT_CXX_IF([AT_GLR_IF([$1], [$2])], [$2])])
# Using yacc.c?
m4_pushdef([AT_YACC_IF],
[m4_bmatch([$3], [%language\|%glr-parser\|%skeleton], [$2], [$1])])
m4_pushdef([AT_LEXPARAM_IF],
[m4_bmatch([$3], [%lex-param], [$1], [$2])])
m4_pushdef([AT_LOCATION_IF],
[m4_bmatch([$3], [%locations], [$1], [$2])])
# Whether we use the Span location type (see calc.at), whose members are
# not named like those of the default location type (on purpose, to make
# sure we can use a user type).
m4_pushdef([AT_LOCATION_TYPE_SPAN_IF],
[m4_bmatch([$3], [%define \(api\.location\.type\|location_type\) \{Span\}], [$1], [$2])])
m4_pushdef([AT_PARAM_IF],
[m4_bmatch([$3], [%parse-param], [$1], [$2])])
# Comma-terminated list of formals parse-parameters.
# E.g., %parse-param { int x } %parse-param {int y} -> "int x, int y, ".
# FIXME: Support grouped parse-param.
m4_pushdef([AT_PARSE_PARAMS])
m4_bpatsubst([$3], [%parse-param { *\([^{}]*[^{} ]\) *}],
[m4_append([AT_PARSE_PARAMS], [\1, ])])
m4_pushdef([AT_PURE_IF],
[m4_bmatch([$3], [%define *api\.pure\|%pure-parser],
[m4_bmatch([$3], [%define *api\.pure *false], [$2], [$1])],
[$2])])
m4_pushdef([AT_PUSH_IF],
[m4_bmatch([$3], [%define api.push-pull \(both\|pull\)], [$1], [$2])])
# AT_NAME_PREFIX.
m4_pushdef([AT_NAME_PREFIX],
[m4_bmatch([$3], [\(%define api\.prefix\|%name-prefix\) .*],
[m4_bregexp([$3],
[\(%define api\.prefix\|%name-prefix\) [\{\"]\([^\"\}]*\)[\"\}]],
[\2])],
[AT_JAVA_IF([YY], [yy])])])
# AT_NAMESPACE: also consider api.prefix. FIXME: Stop that confusion.
m4_pushdef([AT_NAMESPACE],
[m4_bmatch([$3], [\(%define api\.\(namespace\|prefix\)\|%name-prefix\) .*],
[m4_bregexp([$3],
[\(%define api\.\(namespace\|prefix\)\|%name-prefix\) [\{\"]\([^\"\}]*\)[\"\}]],
[\3])],
[yy])])
m4_pushdef([AT_TOKEN_CTOR_IF],
[m4_bmatch([$3], [%define api\.token\.constructor], [$1], [$2])])
m4_pushdef([AT_TOKEN_PREFIX],
[m4_bmatch([$3], [%define api\.token\.prefix {.*}],
[m4_bregexp([$3], [%define api\.token\.prefix {\(.*\)}], [\1])])])
m4_pushdef([AT_TOKEN_RAW_IF],
[m4_bmatch([$3], [%define api\.token\.raw], [$1], [$2])])
m4_pushdef([AT_VARIANT_IF],
[m4_bmatch([$3], [%define api\.value\.type variant], [$1], [$2])])
m4_pushdef([AT_API_prefix],
[m4_bmatch([$3], [%define api\.prefix {.*}],
[m4_bregexp([$3], [%define api\.prefix {\([^\}]*\)}], [\1])],
[AT_JAVA_IF([YY], [yy])])])
m4_pushdef([AT_API_PREFIX],
[m4_toupper(AT_API_prefix)])
# yyerror receives the location if %location, and if the parser is pure. For
# historical reasons, with the "yacc.c" skeleton, the location is not passed
# unless an additional "%parse-param" is present, or if the purity is defined
# as "full".
m4_pushdef([AT_YYERROR_ARG_LOC_IF],
[AT_LOCATION_IF([AT_PURE_IF([m4_bmatch([$3],
m4_quote(m4_join([\|],
[%define api\.pure full],
[%glr-parser],
[%parse-param],
[%skeleton "?glr.c"?])),
[$1], [$2])],
[$2])],
[$2])])
# yyerror always sees the locations (when activated) if the parser is impure.
# When the parser is pure, yyerror sees the location if it is received as an
# argument.
m4_pushdef([AT_YYERROR_SEES_LOC_IF],
[AT_LOCATION_IF([AT_YACC_IF([AT_PURE_IF([AT_YYERROR_ARG_LOC_IF([$1], [$2])],
[$1])],
[$1])],
[$2])])
# The interface is pure: either because %define api.pure, or because we
# are using the C++ parsers.
m4_pushdef([AT_PURE_LEX_IF],
[AT_PURE_IF([$1],
[AT_CXX_IF([$1], [$2])])])
m4_pushdef([AT_YYSTYPE],
[AT_CXX_IF([AT_NAMESPACE[::parser::semantic_type]],
[AT_API_PREFIX[STYPE]])])
m4_pushdef([AT_YYLTYPE],
[AT_CXX_IF([AT_NAMESPACE[::parser::location_type]],
[AT_API_PREFIX[LTYPE]])])
AT_TOKEN_CTOR_IF(
[m4_pushdef([AT_LOC], [[(]AT_NAME_PREFIX[lloc)]])
m4_pushdef([AT_VAL], [[(]AT_NAME_PREFIX[lval)]])
m4_pushdef([AT_YYLEX_FORMALS], [])
m4_pushdef([AT_YYLEX_RETURN], [yy::parser::symbol_type])
m4_pushdef([AT_YYLEX_ARGS], [])
m4_pushdef([AT_USE_LEX_ARGS], [])
m4_pushdef([AT_YYLEX_PRE_FORMALS], [])
m4_pushdef([AT_YYLEX_PRE_ARGS], [])],
[AT_PURE_LEX_IF(
[m4_pushdef([AT_LOC], [(*llocp)])
m4_pushdef([AT_VAL], [(*lvalp)])
m4_pushdef([AT_YYLEX_FORMALS],
[AT_YYSTYPE *lvalp[]AT_LOCATION_IF([, AT_YYLTYPE *llocp])])
m4_pushdef([AT_YYLEX_RETURN], [int])
m4_pushdef([AT_YYLEX_ARGS],
[lvalp[]AT_LOCATION_IF([, llocp])])
m4_pushdef([AT_USE_LEX_ARGS],
[(void) lvalp;AT_LOCATION_IF([(void) llocp;])])
m4_pushdef([AT_YYLEX_PRE_FORMALS],
[AT_YYLEX_FORMALS, ])
m4_pushdef([AT_YYLEX_PRE_ARGS],
[AT_YYLEX_ARGS, ])
],
[m4_pushdef([AT_LOC], [[(]AT_NAME_PREFIX[lloc)]])
m4_pushdef([AT_VAL], [[(]AT_NAME_PREFIX[lval)]])
m4_pushdef([AT_YYLEX_FORMALS], [void])
m4_pushdef([AT_YYLEX_RETURN], [int])
m4_pushdef([AT_YYLEX_ARGS], [])
m4_pushdef([AT_USE_LEX_ARGS], [])
m4_pushdef([AT_YYLEX_PRE_FORMALS], [])
m4_pushdef([AT_YYLEX_PRE_ARGS], [])
])])
# Handle the different types of location components.
AT_LOCATION_TYPE_SPAN_IF(
[AT_LOC_PUSHDEF([first.l], [first.c], [last.l], [last.c])],
[AT_CXX_IF([AT_LOC_PUSHDEF([begin.line], [begin.column], [end.line], [end.column])],
[AT_LOC_PUSHDEF([first_line], [first_column], [last_line], [last_column])])])
AT_GLR_IF([AT_KEYWORDS([glr])])
])# _AT_BISON_OPTION_PUSHDEFS
# AT_BISON_OPTION_POPDEFS
# -----------------------
m4_define([AT_BISON_OPTION_POPDEFS],
[m4_divert_text([KILL],
[m4_popdef([AT_BISON_OPTIONS])
m4_popdef([AT_YYLEX_PRE_ARGS])
m4_popdef([AT_YYLEX_PRE_FORMALS])
m4_popdef([AT_USE_LEX_ARGS])
m4_popdef([AT_YYLEX_ARGS])
m4_popdef([AT_YYLEX_FORMALS])
m4_popdef([AT_YYLTYPE])
m4_popdef([AT_YYSTYPE])
m4_popdef([AT_VAL])
m4_popdef([AT_LOC])
m4_popdef([AT_PURE_LEX_IF])
m4_popdef([AT_YYERROR_SEES_LOC_IF])
m4_popdef([AT_YYERROR_ARG_LOC_IF])
m4_popdef([AT_API_PREFIX])
m4_popdef([AT_API_prefix])
m4_popdef([AT_VARIANT_IF])
m4_popdef([AT_TOKEN_RAW_IF])
m4_popdef([AT_TOKEN_PREFIX])
m4_popdef([AT_TOKEN_CTOR_IF])
m4_popdef([AT_NAMESPACE])
m4_popdef([AT_NAME_PREFIX])
m4_popdef([AT_LOCATION_TYPE_SPAN_IF])
m4_popdef([AT_LOCATION_IF])
m4_popdef([AT_PARSE_PARAMS])
m4_popdef([AT_PUSH_IF])
m4_popdef([AT_PURE_IF])
m4_popdef([AT_PARAM_IF])
m4_popdef([AT_LEXPARAM_IF])
m4_popdef([AT_YACC_IF])
m4_popdef([AT_GLR_IF])
m4_popdef([AT_CXX_IF])
m4_popdef([AT_C_IF])
m4_popdef([AT_LANG])
m4_popdef([AT_JAVA_IF])
m4_popdef([AT_GLR_CC_IF])
m4_popdef([AT_LALR1_CC_IF])
m4_popdef([AT_DEFINES_IF])
m4_popdef([AT_DEBUG_IF])
AT_LOC_POPDEF])dnl
])# AT_BISON_OPTION_POPDEFS
## -------------------------- ##
## Generating Grammar Files. ##
## -------------------------- ##
# AT_LANG_CASE(LANG1, IF-LANG1, LANG2, IF-LANG2, ..., DEFAULT)
# ------------------------------------------------------------
m4_define([AT_LANG_CASE],
[m4_case(AT_LANG, $@)])
# _AT_LANG_DISPATCH(LANG, MACRO, ARGS)
# ------------------------------------
# Call the specialization of MACRO for LANG with ARGS. Complain if
# unavailable.
m4_define([_AT_LANG_DISPATCH],
[m4_ifdef([$2($1)],
[m4_indir([$2($1)], m4_shift2($@))],
[m4_fatal([$2: unknown language: $1])])])
# AT_LANG_DISPATCH(MACRO, ARGS)
# -----------------------------
# Call the specialization of MACRO for AT_LANG with ARGS. Complain if
# unavailable.
m4_define([AT_LANG_DISPATCH],
[_AT_LANG_DISPATCH(AT_LANG, $@)])
# AT_DATA_SOURCE_PROLOGUE
# -----------------------
# The prologue that should be included in any source code that is
# meant to be compiled. Keep atlocal.in sync (BISON_CXX_WORKS).
m4_define([AT_DATA_SOURCE_PROLOGUE],
[[/* Adjust to the compiler.
We used to do it here, but each time we add a new line,
we have to adjust all the line numbers in error messages.
It's simpler to use a constant include to a varying file. */
#include <testsuite.h>
]])
# AT_DATA_GRAMMAR_PROLOGUE
# ------------------------
# The prologue that should be included in any grammar whose parser is
# meant to be compiled.
m4_define([AT_DATA_GRAMMAR_PROLOGUE],
[[%code top {
]AT_DATA_SOURCE_PROLOGUE[]dnl
[}
]])
# AT_DATA_SOURCE(NAME, CONTENT)
# -----------------------------
# Generate the file NAME, whose CONTENT is preceded by
# AT_DATA_SOURCE_PROLOGUE.
m4_define([AT_DATA_SOURCE],
[AT_DATA([$1],
[AT_DATA_SOURCE_PROLOGUE
$2])
])
# AT_DATA_GRAMMAR(NAME, CONTENT)
# ------------------------------
# Generate the file NAME, whose CONTENT is preceded by
# AT_DATA_GRAMMAR_PROLOGUE.
m4_define([AT_DATA_GRAMMAR], [AT_LANG_DISPATCH([$0], $@)])
# AT_YYLEX_PROTOTYPE
# AT_YYLEX_DECLARE_EXTERN
# AT_YYLEX_DECLARE
# AT_YYLEX_DEFINE([INPUT], [ACTION])
# ----------------------------------
# INPUT can be empty, or in double quotes, or a list (in braces).
# ACTION may compute yylval for instance, using "res" as token type,
# and "toknum" as the number of calls to yylex (starting at 0).
m4_define([AT_YYLEX_PROTOTYPE],
[AT_YYLEX_RETURN AT_NAME_PREFIX[]lex (]AT_YYLEX_FORMALS[)[]dnl
])
m4_define([AT_YYLEX_DECLARE_EXTERN],
[AT_YYLEX_PROTOTYPE;dnl
])
m4_define([AT_YYLEX_DECLARE],
[static AT_YYLEX_DECLARE_EXTERN[]dnl
])
# AT_YYLEX_DEFINE([INPUT], [ACTION])
m4_define([AT_YYLEX_DEFINE], [AT_LANG_DISPATCH([$0], $@)])
# AT_YYERROR_FORMALS
# AT_YYERROR_PROTOTYPE
# AT_YYERROR_DECLARE_EXTERN
# AT_YYERROR_DECLARE
# AT_YYERROR_DEFINE
# -------------------------
# Must be called inside a AT_BISON_OPTION_PUSHDEFS/POPDEFS pair.
m4_define([AT_YYERROR_FORMALS], [AT_LANG_DISPATCH([$0], $@)])
m4_define([AT_YYERROR_PROTOTYPE],[AT_LANG_DISPATCH([$0], $@)])
m4_define([AT_YYERROR_DECLARE_EXTERN], [AT_LANG_DISPATCH([$0], $@)])
m4_define([AT_YYERROR_DECLARE], [AT_LANG_DISPATCH([$0], $@)])
m4_define([AT_YYERROR_DEFINE], [AT_LANG_DISPATCH([$0], $@)])
# AT_MAIN_DEFINE
# --------------
m4_define([AT_MAIN_DEFINE], [AT_LANG_DISPATCH([$0], $@)])
## --- ##
## C. ##
## --- ##
# AT_DATA_GRAMMAR(c)(NAME, CONTENT)
# ---------------------------------
# Generate the file NAME, with CONTENT.
m4_define([AT_DATA_GRAMMAR(c)],
[AT_DATA([$1],
[AT_DATA_GRAMMAR_PROLOGUE
$2])
])
m4_define([AT_YYERROR_FORMALS(c)],
[AT_YYERROR_ARG_LOC_IF([AT_YYLTYPE const * const llocp, ])AT_PARSE_PARAMS[const char *msg]])
m4_define([AT_YYERROR_PROTOTYPE(c)],
[[void ]AT_NAME_PREFIX[error (]AT_YYERROR_FORMALS[)]])
m4_define([AT_YYERROR_DECLARE_EXTERN(c)],
[AT_YYERROR_PROTOTYPE;])
m4_define([AT_YYERROR_DECLARE(c)],
[#include <stdio.h>
]AT_LOCATION_IF([[
#if defined ]AT_YYLTYPE[_IS_TRIVIAL && ]AT_YYLTYPE[_IS_TRIVIAL
static int location_print (FILE *yyo, ]AT_YYLTYPE[ const * const yylocp);
# ifndef LOCATION_PRINT
# define LOCATION_PRINT(File, Loc) location_print (File, &(Loc))
# endif
#endif
]])[
static AT_YYERROR_DECLARE_EXTERN])
m4_define([AT_YYERROR_DEFINE(c)],
[[
]AT_LOCATION_IF([[
# if defined ]AT_YYLTYPE[_IS_TRIVIAL && ]AT_YYLTYPE[_IS_TRIVIAL
/* Print *YYLOCP on YYO. */
__attribute__((__unused__))
static int
location_print (FILE *yyo, ]AT_YYLTYPE[ const * const yylocp)
{
int res = 0;
int end_col = 0 != yylocp->last_column ? yylocp->last_column - 1 : 0;
if (0 <= yylocp->first_line)
{
res += fprintf (yyo, "%d", yylocp->first_line);
if (0 <= yylocp->first_column)
res += fprintf (yyo, ".%d", yylocp->first_column);
}
if (0 <= yylocp->last_line)
{
if (yylocp->first_line < yylocp->last_line)
{
res += fprintf (yyo, "-%d", yylocp->last_line);
if (0 <= end_col)
res += fprintf (yyo, ".%d", end_col);
}
else if (0 <= end_col && yylocp->first_column < end_col)
res += fprintf (yyo, "-%d", end_col);
}
return res;
}
#endif
]])[
/* A C error reporting function. */
static
]AT_YYERROR_PROTOTYPE[
{]m4_bpatsubst(m4_defn([AT_PARSE_PARAMS]),
[[^,]+[^A-Za-z_0-9]\([A-Za-z_][A-Za-z_0-9]*\), *], [
YYUSE(\1);])dnl
AT_YYERROR_SEES_LOC_IF([[
LOCATION_PRINT (stderr, ]AT_LOC[);
fprintf (stderr, ": ");]])[
fprintf (stderr, "%s\n", msg);
}]])
m4_define([AT_YYLEX_DEFINE(c)],
[[#include <assert.h>
static
]AT_YYLEX_PROTOTYPE[
{
]m4_bmatch([$1], [^\(".*"\)?$],
[[static char const input[] = ]m4_default([$1], [""])],
[[static int const input[] = ]$1])[;
static int toknum = 0;
int res;
]AT_USE_LEX_ARGS[
enum { input_elts = sizeof input / sizeof input[0] };
(void) input_elts;
assert (0 <= toknum && toknum < input_elts);
res = input[toknum++];
]$2[;]AT_TOKEN_CTOR_IF([], [[
]AT_LOCATION_IF([[
]AT_LOC_FIRST_LINE[ = ]AT_LOC_LAST_LINE[ = 1;
]AT_LOC_FIRST_COLUMN[ = ]AT_LOC_LAST_COLUMN[ = toknum;]])[
return res;]])[
}]])
m4_define([AT_MAIN_DEFINE(c)],
[[#include <stdlib.h> /* getenv. */
#include <string.h> /* strcmp. */
int
main (int argc, char const* argv[])
{]AT_DEBUG_IF([[
yydebug = !!getenv ("YYDEBUG");
for (int i = 1; i < argc; ++i)
if (!strcmp (argv[i], "-p")
|| !strcmp (argv[i], "-d") || !strcmp (argv[i], "--debug"))
yydebug |= 1;
else if (!strcmp (argv[i], "-s") || !strcmp (argv[i], "--stat"))
yydebug |= 2;]], [[
(void) argc;
(void) argv;]])[
return ]AT_NAME_PREFIX[parse ();
}]])
m4_define([AT_LANG_FOR_EACH_STD(c)],
[$1])
## ----- ##
## C++. ##
## ----- ##
# AT_DATA_GRAMMAR(NAME, CONTENT)
# ------------------------------
m4_copy([AT_DATA_GRAMMAR(c)], [AT_DATA_GRAMMAR(c++)])
# No need to declare, it's part of the class interface.
m4_define([AT_YYERROR_DECLARE(c++)], [])
m4_define([AT_YYERROR_DECLARE_EXTERN(c++)], [])
m4_define([AT_YYERROR_DEFINE(c++)],
[[/* A C++ error reporting function. */
void
]AT_NAMESPACE[::parser::error (]AT_LOCATION_IF([[const location_type& l, ]])[const std::string& m)
{
std::cerr << ]AT_LOCATION_IF([l << ": " << ])[m << '\n';
}]])
# AT_YYERROR_DEFINE(c++)([INPUT], [ACTION])
# -----------------------------------------
# Same as in C.
m4_copy([AT_YYLEX_DEFINE(c)], [AT_YYLEX_DEFINE(c++)])
m4_define([AT_MAIN_DEFINE(c++)],
[[#include <cstdlib> // getenv.
#include <cstring> // strcmp.
int
main (int argc, char const* argv[])
{
]AT_NAMESPACE[::parser p;]AT_DEBUG_IF([[
int debug = !!getenv ("YYDEBUG");
for (int i = 1; i < argc; ++i)
if (!strcmp (argv[i], "-p")
|| !strcmp (argv[i], "-d") || !strcmp (argv[i], "--debug"))
debug |= 1;
else if (!strcmp (argv[i], "-s") || !strcmp (argv[i], "--stat"))
debug |= 2;
p.set_debug_level (debug);]], [[
(void) argc;
(void) argv;]])[
return p.parse ();
}]])
m4_define([AT_LANG_FOR_EACH_STD(c++)],
[AT_FOR_EACH_CXX([$1])])
m4_define([AT_FOR_EACH_CXX],
[[at_for_each_std_CXXFLAGS_save=$CXXFLAGS
for at_std in '' \
${CXX98_CXXFLAGS:+"$CXX98_CXXFLAGS"} \
${CXX03_CXXFLAGS:+"$CXX03_CXXFLAGS"} \
${CXX11_CXXFLAGS:+"$CXX11_CXXFLAGS"} \
${CXX14_CXXFLAGS:+"$CXX14_CXXFLAGS"} \
${CXX17_CXXFLAGS:+"$CXX17_CXXFLAGS"} \
${CXX2A_CXXFLAGS:+"$CXX2A_CXXFLAGS"}
do
]AS_ECHO(["======== Testing with C++ standard flags: '$at_cxx_std'"])[
CXXFLAGS="$at_for_each_std_CXXFLAGS_save $at_std"
]$1[
done
CXXFLAGS=$at_for_each_std_CXXFLAGS_save
]])
## --- ##
## D. ##
## --- ##
# AT_DATA_GRAMMAR(NAME, CONTENT)
# ------------------------------
m4_copy([AT_DATA], [AT_DATA_GRAMMAR(d)])
# No need to declare, it's part of the class interface.
m4_define([AT_YYERROR_DECLARE(d)], [])
m4_define([AT_YYERROR_DECLARE_EXTERN(d)], [])
m4_define([AT_YYERROR_DEFINE(d)],
[[/* An error reporting function. */
public void yyerror (]AT_LOCATION_IF([[YYLocation l, ]])[string m)
{
stderr.writeln (]AT_LOCATION_IF([[l, ": ", ]])[m);
}]])
m4_define([AT_MAIN_DEFINE(d)],
[[int main ()
{
auto l = new ]AT_API_prefix[Lexer ();
auto p = new ]AT_API_PREFIX[Parser (l);
return p.parse ();
}]])
## ------ ##
## Java. ##
## ------ ##
# AT_DATA_GRAMMAR(NAME, CONTENT)
# ------------------------------
m4_copy([AT_DATA], [AT_DATA_GRAMMAR(java)])
# AT_JAVA_POSITION_DEFINE
# -----------------------
m4_define([AT_JAVA_POSITION_DEFINE],
[[class Position {
public int line;
public int token;
public Position ()
{
line = 0;
token = 0;
}
public Position (int l, int t)
{
line = l;
token = t;
}
public boolean equals (Position l)
{
return l.line == line && l.token == token;
}
public String toString ()
{
return Integer.toString (line) + "." + Integer.toString(token);
}
public int lineno ()
{
return line;
}
public int token ()
{
return token;
}
}]])
m4_define([AT_YYERROR_DEFINE(java)],
[AT_LOCATION_IF([[public void yyerror (Calc.Location l, String m)
{
if (l == null)
System.err.println (m);
else
System.err.println (l + ": " + m);
}
]], [[
public void yyerror (String m)
{
System.err.println (m);
}
]])
])
m4_define([AT_YYLEX_DEFINE(java)],
[[
/*--------.
| yylex. |
`--------*/
public String input = "]$1[";
public int index = 0;
public int yylex ()
{
if (index < input.length ())
return input.charAt (index++);
else
return 0;
}
public Object getLVal ()
{
]$2[;
}
]])
m4_define([AT_MAIN_DEFINE(java)],
[[class input
{
public static void main (String args[]) throws IOException
{
]AT_API_prefix[Parser p = new ]AT_API_prefix[Parser ();
System.exit (p.parse () ? 0 : 1);
}
}]])
m4_define([AT_LANG_FOR_EACH_STD(java)],
[$1])
## --------------- ##
## Running Bison. ##
## --------------- ##
# AT_BISON_CHECK(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# -------------------------------------------------
# High-level routine that may call bison several times, under different
# conditions.
#
# Check Bison by invoking 'bison BISON_ARGS'. BISON_ARGS should not contain
# shell constructs (such as redirection or pipes) that would prevent
# appending additional command-line arguments for bison. OTHER_AT_CHECK_ARGS
# are the usual remaining arguments to AT_CHECK: STATUS, STDOUT, etc.
#
# This macro or AT_BISON_CHECK_NO_XML should always be used whenever invoking
# Bison in the test suite. For now it ensures that:
#
# 1. Valgrind doesn't report reachable memory when Bison is expected to have
# a non-zero exit status since Bison doesn't always try to free all memory
# in that case.
#
# 2. In the case of maintainer-xml-check, XML/XSLT output is compared with
# --graph and --report=all output for every working grammar.
#
# 3. If stderr contains a warning, -Werror and --warnings=error
# convert the warning to an error.
#
# 4. If stderr contains a warning, -Wnone and --warnings=none suppress it.
m4_define([AT_BISON_CHECK],
[m4_null_if([$2], [AT_BISON_CHECK_XML($@)])
AT_BISON_CHECK_NO_XML($@)])
# AT_BISON_CHECK_(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# --------------------------------------------------
# Low-level macro to run bison once.
m4_define([AT_BISON_CHECK_],
[AT_CHECK(AT_SET_ENV[[ bison --color=no -fno-caret ]]$@)])
# AT_BISON_CHECK_WARNINGS(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# ----------------------------------------------------------
# Check that warnings (if some are expected) are correctly
# turned into errors with -Werror, etc.
#
# When -Wno-error is used, the rules are really different, don't try.
m4_define([AT_BISON_CHECK_WARNINGS],
[m4_if(m4_bregexp([$4], [: warning: ]), [-1], [],
m4_bregexp([$1], [-Wno-error=]), [-1],
[m4_null_if([$2], [AT_BISON_CHECK_WARNINGS_($@)])])])
m4_define([AT_BISON_CHECK_WARNINGS_],
[[# Defining POSIXLY_CORRECT causes bison to complain if options are
# added after the grammar file name, so skip these checks in that
# case.
if test "$POSIXLY_CORRECT_IS_EXPORTED" = false; then
]AT_SAVE_SPECIAL_FILES[
# To avoid expanding it repeatedly, store specified stdout.
]AT_DATA([expout], [$3])[
# Run with -Werror.
]AT_BISON_CHECK_([$1[ -Werror]], [[1]], [expout], [stderr])[
if test x"$PERL" != x; then
# Build expected stderr up to and including the "warnings being
# treated as errors" message.
]AT_DATA([[experr]], [$4])[
"$PERL" -pi -e 's{(.*): warning:}{$][1: error:};' \
-e 's{\[-W(.*)\]$}{@<:@-Werror=$][1@:>@}' \
experr
]AT_CHECK([[sed 's,.*/$,,' stderr 1>&2]], [[0]], [[]], [experr])[
# Now check --warnings=error.
cp stderr experr
]AT_BISON_CHECK_([$1[ --warnings=error]], [[1]], [expout], [experr])[
fi
# Now check -Wnone and --warnings=none by making sure that
# -Werror doesn't change the exit status when -Wnone or
# --warnings=none is specified. With traces disabled, there should
# be no output on stderr.
]AT_BISON_CHECK_([$1[ -Wnone,none -Werror --trace=none]], [[0]], [expout])[
]AT_BISON_CHECK_([$1[ --warnings=none -Werror --trace=none]], [[0]], [expout])[
]AT_RESTORE_SPECIAL_FILES[
fi]dnl
])
# AT_BISON_CHECK_NO_XML(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# --------------------------------------------------------
# Same as AT_BISON_CHECK except don't perform XML/XSLT checks. This is useful
# when a tortured grammar's XML is known to be too large for xsltproc to
# handle.
m4_define([AT_BISON_CHECK_NO_XML],
[AT_CHECK(AT_SET_ENV_IF([$2]) [[bison --color=no -fno-caret ]]$@)
AT_BISON_CHECK_WARNINGS($@)])
# AT_BISON_CHECK_XML(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# -----------------------------------------------------
# Run AT_BISON_CHECK's XML/XSLT checks if $BISON_TEST_XML=1 and $XSLTPROC is
# defined. It doesn't make sense to invoke this macro if Bison is expected to
# have a non-zero exit status.
m4_define([AT_BISON_CHECK_XML],
[[if test x"$BISON_TEST_XML" = x1 && test x"$XSLTPROC" != x""; then]
AT_SAVE_SPECIAL_FILES
[mkdir xml-tests]
m4_pushdef([AT_BISON_ARGS],
[m4_bpatsubsts([[$1]],
[--report(-file)?=[^][ ]*], [],
[--graph=[^][ ]*], [],
[--xml=[^][ ]*], [])])dnl
# Don't combine these Bison invocations since we want to be sure that
# --report=all isn't required to get the full XML file.
AT_BISON_CHECK_([[--report=all --report-file=xml-tests/test.output \
--graph=xml-tests/test.gv ]]AT_BISON_ARGS,
[[0]], [ignore], [ignore])
AT_BISON_CHECK_([[--xml=xml-tests/test.xml ]]AT_BISON_ARGS,
[[0]], [ignore], [ignore])
m4_popdef([AT_BISON_ARGS])dnl
[cp xml-tests/test.output expout]
AT_CHECK([[$XSLTPROC \
`]]AT_SET_ENV[[ bison --print-datadir`/xslt/xml2text.xsl \
xml-tests/test.xml]], [[0]], [expout])
[sort xml-tests/test.gv > expout]
AT_CHECK([[$XSLTPROC \
`]]AT_SET_ENV[[ bison --print-datadir`/xslt/xml2dot.xsl \
xml-tests/test.xml | sort]], [[0]], [expout])
[rm -rf xml-tests expout]
AT_RESTORE_SPECIAL_FILES
[fi]])
# AT_SET_ENV_IF(EXIT-STATUS)
# --------------------------
# Put this before a Bison invocation to set the environment to:
# - define COLUMNS to make the test suite independant of the user's
# environment;
# - keep Valgrind from complaining about reachable memory (when
# EXIT-STATUS is not 0).
#
# Do not quote invocations of this macro within the first argument of AT_CHECK.
# The triple quoting below will cause test cases to fail if you do. If you do
# so anyway but also decrease the quoting below to avoid that problem, AT_CHECK
# will then fail to shell-escape its contents when attempting to print them.
# The testsuite verbose output, at least, will be incorrect, but nothing may
# fail to make sure you notice.
m4_define([AT_SET_ENV_IF],
[[[COLUMNS=1000; export COLUMNS;]] m4_null_if($1, [], [[[VALGRIND_OPTS="$VALGRIND_OPTS --leak-check=summary --show-reachable=no"; export VALGRIND_OPTS; ]]])])
# AT_SET_ENV
# ----------
# See above.
m4_define([AT_SET_ENV],
[AT_SET_ENV_IF([1])])
## ------------------------ ##
## Compiling C, C++ Files. ##
## ------------------------ ##
# AT_COMPILE(OUTPUT, [SOURCES = OUTPUT.c], [EXTRA-COMPILER-FLAGS])
# ----------------------------------------------------------------
# Compile SOURCES into OUTPUT.
#
# If OUTPUT does not contain '.', assume that we are linking too,
# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
# with trailing .o removed, and ".c" appended.
m4_define([AT_COMPILE],
[AT_SKIP_IF([[! $BISON_C_WORKS]])
AT_CHECK(m4_join([ ],
[$CC $CFLAGS $CPPFLAGS $3],
[m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])],
[-o $1],
[m4_default([$2], [m4_bpatsubst([$1], [\.o$]).c])],
[m4_bmatch([$1], [[.]], [], [$LIBS])]),
0, [ignore], [ignore])])
# AT_COMPILE_CXX(OUTPUT, [SOURCES = OUTPUT.cc], [EXTRA-COMPILER-FLAGS])
# ---------------------------------------------------------------------
# Compile SOURCES into OUTPUT. If the C++ compiler does not work,
# ignore the test.
#
# If OUTPUT does not contain '.', assume that we are linking too,
# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
# with trailing ".o" removed, and ".cc" appended.
m4_define([AT_COMPILE_CXX],
[AT_KEYWORDS(c++)
AT_SKIP_IF([[! $BISON_CXX_WORKS]])
AT_CHECK(m4_join([ ],
[$CXX $CXXFLAGS $CPPFLAGS $3],
[m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])],
[-o $1],
[m4_default([$2], [m4_bpatsubst([$1], [\.o$]).cc])],
[m4_bmatch([$1], [[.]], [], [$LIBS])]),
0, [ignore], [ignore])])
# AT_COMPILE_D(OUTPUT, [SOURCES = OUTPUT.d], [EXTRA-COMPILER-FLAGS])
# -------------------------------------------------------------------
# Compile SOURCES into OUTPUT. If the C++ compiler does not work,
# ignore the test.
#
# If OUTPUT does not contain '.', assume that we are linking too,
# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
# with trailing ".o" removed, and ".cc" appended.
m4_define([AT_COMPILE_D],
[AT_KEYWORDS(d)
AT_SKIP_IF([[! $BISON_DC_WORKS]])
AT_CHECK(m4_join([ ],
[$DC $DCFLAGS $3],
[m4_bmatch([$1], [[.]], [-c])],
[-of$1],
[m4_default([$2], [m4_bpatsubst([$1], [\.o$]).d])]),
0, [ignore], [ignore])])
# AT_JAVA_COMPILE(SOURCES)
# ------------------------
# Compile SOURCES into Java class files. Skip the test if java or javac
# is not installed.
m4_define([AT_JAVA_COMPILE],
[AT_KEYWORDS(java)
AT_SKIP_IF([[test -z "$CONF_JAVAC"]])
AT_SKIP_IF([[test -z "$CONF_JAVA"]])
AT_CHECK([[$SHELL ../../../javacomp.sh ]$1],
[[0]], [ignore], [ignore])])
# AT_LANG_FOR_EACH_STD(BODY)
# --------------------------
m4_define([AT_LANG_FOR_EACH_STD], [AT_LANG_DISPATCH([$0], $@)])
# AT_LANG_COMPILE(OUTPUT, [SOURCES = OUTPUT.c], [EXTRA-COMPILER-FLAGS])
# ---------------------------------------------------------------------
# Compile SOURCES into OUTPUT. Skip if compiler does not work.
#
# If OUTPUT does not contain '.', assume that we are linking too,
# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
# with trailing .o removed, and ".c"/".cc" appended.
m4_define([AT_LANG_COMPILE], [AT_LANG_DISPATCH([$0], $@)])
m4_define([AT_LANG_COMPILE(c)], [AT_COMPILE([$1], [$2], [$3])])
m4_define([AT_LANG_COMPILE(c++)], [AT_COMPILE_CXX([$1], [$2], [$3])])
m4_define([AT_LANG_COMPILE(d)], [AT_COMPILE_D([$1], [$2], [$3])])
m4_define([AT_LANG_COMPILE(java)], [AT_JAVA_COMPILE([$1.java], [$2], [$3])])
# AT_LANG_EXT
# -----------
# The file extension corresponding to the language: c, cc, or java.
m4_define([AT_LANG_EXT], [AT_LANG_DISPATCH([$0], $@)])
m4_define([AT_LANG_EXT(c)], [c])
m4_define([AT_LANG_EXT(c++)], [cc])
m4_define([AT_LANG_EXT(d)], [d])
m4_define([AT_LANG_EXT(java)], [java])
# AT_LANG_HDR
# -----------
# The header file extension corresponding to the language: c, cc.
m4_define([AT_LANG_HDR], [AT_LANG_DISPATCH([$0], $@)])
m4_define([AT_LANG_HDR(c)], [h])
m4_define([AT_LANG_HDR(c++)], [hh])
# AT_FULL_COMPILE(OUTPUT, [OTHER1], [OTHER2],
# [$4: EXTRA-COMPILER-FLAGS, [$5: EXTRA-BISON-FLAGS])
# -------------------------------------------------------------------
# Compile OUTPUT.y to OUTPUT.c, OUTPUT.cc, or OUTPUT.java, and then
# compile it to OUTPUT or OUTPUT.class. If OTHER is specified, compile
# OUTPUT-OTHER.c, OUTPUT-OTHER.cc, or OUTPUT-OTHER.java to OUTPUT or
# OUTPUT.java along with it. Relies on AT_CXX_IF and
# AT_JAVA_IF.
m4_define([AT_FULL_COMPILE],
[AT_BISON_CHECK([$5 -o $1.AT_LANG_EXT $1.y])
AT_LANG_COMPILE([$1],
m4_join([ ],
[$1.AT_LANG_EXT],
m4_ifval($2, [[$1-$2.]AT_LANG_EXT]),
m4_ifval($3, [[$1-$3.]AT_LANG_EXT])),
[$4])])
# AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
# --------------------------------
# Check that we can link together C and C++ objects.
m4_define([AT_SKIP_IF_CANNOT_LINK_C_AND_CXX],
[AT_DATA([c-and-cxx.h],
[[#ifdef __cplusplus
extern "C"
{
#endif
int fortytwo (void);
#ifdef __cplusplus
}
#endif
]])
AT_DATA([c-only.c],
[[#include "c-and-cxx.h"
int
main (void)
{
return fortytwo () == 42 ? 0 : 1;
}
]])
AT_DATA([cxx-only.cc],
[[#include "c-and-cxx.h"
int fortytwo ()
{
return 42;
}
]])
AT_COMPILE([c-only.o], [c-only.c])
AT_COMPILE_CXX([cxx-only.o], [cxx-only.cc])
AT_CHECK([$CXX $CXXFLAGS $CPPFLAGS $LDFLAGS c-only.o cxx-only.o -o c-and-cxx ||
exit 77], [0], [ignore], [ignore])
AT_C_PARSER_CHECK([c-and-cxx])
])
# AT_REQUIRE_CXX_STD(STD, [IF-FAIL = SKIP])
# -----------------------------------------
# Skip unless this compiler supports at least C++ STD (e.g., "11",
# "14", etc.).
m4_define([AT_REQUIRE_CXX_STD],
[AT_DATA([check.cc],
[[int main ()
{
#if !defined __cplusplus || __cplusplus < ]m4_case([$1],
[98], [199711],
[03], [199711],
[11], [201103],
[14], [201402],
[17], [201703],
[2a], [201709],
[m4_fatal([$0: invalid arguments: $@])])[
return 1;
#else
return 0;
#endif
}
]])
AT_COMPILE_CXX([check])
AT_CHECK([@&t@./check], [ignore])
m4_ifval([$2],
[if test $at_status != 0; then
$2
fi],
[AT_SKIP_IF([test $at_status != 0])])
])
# AT_SKIP_IF_EXCEPTION_SUPPORT_IS_POOR
# ------------------------------------
# Check that we can expect exceptions to be handled properly.
# GCC 4.3 and 4.4 fail https://trac.macports.org/ticket/40853.
m4_define([AT_SKIP_IF_EXCEPTION_SUPPORT_IS_POOR],
[AT_DATA_SOURCE([exception.cc],
[[#include <iostream>
#include <stdexcept>
void foo ()
{
try
{
throw std::runtime_error ("foo");
}
catch (...)
{
std::cerr << "Inner caught\n";
throw;
}
}
int main ()
{
try
{
foo ();
}
catch (...)
{
std::cerr << "Outer caught\n";
return 0;
}
return 1;
}
]])
AT_COMPILE_CXX([exception])
# The "empty" quadrigraph is to protect from cfg.mk's
# sc_at_parser_check.
AT_CHECK([@&t@./exception || exit 77], [0], [], [ignore])
])
## ---------------------------- ##
## Running a generated parser. ##
## ---------------------------- ##
# AT_C_PARSER_CHECK(COMMAND, EXIT-STATUS, EXPOUT, EXPERR, [PRE])
# --------------------------------------------------------------
# So that we can run './testsuite PREPARSER='valgrind -q' for instance.
#
# Get rid of spurious messages when compiled with --coverage:
# +profiling:/[...]/lib/fprintf.gcda:Merge mismatch for summaries
m4_define([AT_C_PARSER_CHECK],
[AT_CHECK([$5 $PREPARSER ./$1], [$2], [$3], [stderr])
AT_CHECK([sed >&2 -e '/^profiling:.*:Merge mismatch for summaries/d' stderr],
[0], [], [$4])
])
# AT_JAVA_PARSER_CHECK(COMMAND, EXIT-STATUS, EXPOUT, EXPERR, [PRE])
# -----------------------------------------------------------------
m4_define([AT_JAVA_PARSER_CHECK],
[AT_CHECK([$5[ $SHELL ../../../javaexec.sh ]$1], [$2], [$3], [$4])])
# AT_PARSER_CHECK(COMMAND, EXIT-STATUS, EXPOUT, EXPERR, [PRE])
# ------------------------------------------------------------
# If we know we are in Java (via AT_BISON_OPTION_PUSHDEFS/POPDEFS),
# run AT_JAVA_PARSER_CHECK, otherwise AT_C_PARSER_CHECK.
m4_define([AT_PARSER_CHECK],
[m4_ifdef([AT_JAVA_IF],
[AT_JAVA_IF([AT_JAVA_PARSER_CHECK($@)],
[AT_C_PARSER_CHECK($@)])],
[AT_C_PARSER_CHECK($@)])])
# AT_TEST_TABLES_AND_PARSE(TITLE, COND-VALUE, TEST-SPEC,
# DECLS, GRAMMAR, INPUT,
# BISON-STDERR, TABLES-OR-LAST-STATE,
# [OTHER-CHECKS],
# [PARSER-EXIT-VALUE],
# [PARSER-STDOUT], [PARSER-STDERR])
# -------------------------------------------------------------
# Using TITLE as the test group title, check the generated parser tables
# and parser for a specified grammar file under a condition labeled by
# COND-VALUE.
#
# TEST-SPEC is a comma-delimited list of attributes of this test. Each
# recognized attribute is described below where it is relevant.
#
# Insert DECLS and GRAMMAR into the declarations and grammar section of
# the grammar file. Insert basic yyerror, yylex, and main function
# definitions as well. Hardcode yylex to return the (possibly empty)
# comma-delimited series of tokens in INPUT followed by token 0.
#
# If TEST-SPEC contains the attribute no-xml, then invoke bison using
# AT_BISON_CHECK_NO_XML. Otherwise, invoke bison using AT_BISON_CHECK.
# On the bison command-line, specify `--report=all --defines'. Check
# that Bison exits with value 0, has no stdout, and has stderr
# BISON-STDERR.
#
# If TEST-SPEC contains the attribute 'last-state', check that the value
# of TABLES-OR-LAST-STATE is the index of the last state generated for
# the grammar; in other words, check the number of states (minus one).
# Otherwise, check that everything in the '.output' file starting with
# the definition of state 0 is the same as the entire value of
# TABLES-OR-LAST-STATE.
#
# Expand the M4 in OTHER-CHECKS to perform additional checks of the
# '.output' file, which is named 'input.output', and/or grammar file,
# which is named 'input.y'.
#
# Finally, compile the generated parser and then run it using
# AT_PARSER_CHECK with PARSER-EXIT-VALUE, PARSER-STDOUT, and
# PARSER-STDERR as the 2nd-4th arguments.
#
# As a precondition, you must properly double-quote all arguments that
# are to be interpreted as strings.
#
# AT_COND_CASE (when appearing in single-quoted segments of arguments)
# invokes m4_case with its own arguments but COND-VALUE inserted as the
# first argument. This is useful, for example, when wrapping multiple
# AT_TEST_TABLES_AND_PARSE invocations, each representing a different
# condition, in another macro.
#
# For example:
#
# # AT_TEST_SYNTAX_ERROR(DESCRIPTION, DECLS, GRAMMAR, INPUT, LAST-STATE,
# # PARSER-EXIT-VALUE, PARSER-STDOUT, PARSER-STDERR)
# # ---------------------------------------------------------------------
# m4_define([AT_TEST_SYNTAX_ERROR],
# [
# AT_TEST_TABLES_AND_PARSE([$1[ with %define parse.error verbose]], [[verbose]],
# [[last-state]],
# [[%define parse.error verbose ]$2], [$3], [$4],
# [[]], [$5], [], [$6], [$7], [$8])
# AT_TEST_TABLES_AND_PARSE([$1[ with no %define parse.error verbose]], [[no verbose]],
# [[last-state]],
# [$2], [$3], [$4],
# [[]], [$5], [], [$6], [$7], [$8])
# ])
#
# AT_TEST_SYNTAX_ERROR([[Single Char Grammar]],
# [[%token 'b']], [[start: 'a' ;]], [['a', 'b']],
# [[3]],
# [[1]], [[]],
# [AT_COND_CASE([[no verbose]],
# [[syntax error
# ]],
# [[syntax error, unexpected 'b', expecting $end
# ]])])
m4_define([AT_TEST_TABLES_AND_PARSE],
[m4_pushdef([AT_COND_CASE], [m4_case([$2], $][@)])
AT_SETUP([$1])
AT_BISON_OPTION_PUSHDEFS([$4])
AT_DATA_GRAMMAR([[input.y]],
[[%code {
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
}
]$4[
%%
]$5[
%%
]AT_YYERROR_DEFINE[
static int
yylex (void)
{
static int const input[] = {
]m4_if([$6], [], [], [$6], [[]], [], [$6[, ]])[0
};
static int const *inputp = input;
return *inputp++;
}
]AT_MAIN_DEFINE[
]])
# In some versions of Autoconf, AT_CHECK invokes AS_ESCAPE before
# expanding macros, so it corrupts some special characters in the
# macros. To avoid this, expand now and pass it the result with proper
# string quotation. Assume args 7 through 12 expand to properly quoted
# strings.
m4_if(m4_index(m4_quote($3), [no-xml]), -1,
[AT_BISON_CHECK],
[AT_BISON_CHECK_NO_XML])([[-Wall --report=all --defines -o input.c input.y]],
[0], [], m4_dquote($7))
m4_if(m4_index(m4_quote($3), [last-state]), -1,
[AT_CHECK([[sed -n '/^State 0$/,$p' input.output]], [[0]],
m4_dquote($8))],
[AT_CHECK([[sed -n 's/^State //p' input.output | tail -1]], [[0]],
m4_dquote($8)[[
]])])
$9
# Canonical LR generates very large tables, resulting in very long
# files with #line directives that may overflow what the standards
# (C90 and C++98) guarantee: 32767. In that case, GCC's -pedantic
# will issue an error.
#
# There is no "" around `wc` since some indent the result.
m4_bmatch([$4], [%define lr.type canonical-lr],
[if test 32767 -lt `wc -l < input.c`; then
CFLAGS=`echo " $CFLAGS " | sed -e 's/ -pedantic / /'`
CXXFLAGS=`echo " $CXXFLAGS " | sed -e 's/ -pedantic / /'`
fi])
AT_COMPILE([[input]])
AT_PARSER_CHECK([[input]],
m4_ifval([$10], [m4_dquote($10)]),
m4_ifval([$11], [m4_dquote($11)]),
m4_ifval([$12], [m4_dquote($12)]))
AT_BISON_OPTION_POPDEFS
AT_CLEANUP
m4_popdef([AT_COND_CASE])])
# AT_SETS_CHECK(INPUT, SETS, EXPECTED)
# ------------------------------------
# Extract the information about the grammar sets from a bison
# trace output (INPUT), and compare to EXPECTED.
#
# And remember, there is no alternation in portable sed.
m4_define([AT_SETS_CHECK],
[AT_DATA([extract.sed],
[[#n
]m4_foreach([m4_Set], [$2], [[
/^]m4_Set[/ {
:]m4_Set[
p
n
/^ *$/ !b ]m4_Set[
}
]])])
AT_CHECK([sed -f extract.sed $1], 0, [$3])
])
## ----------------------- ##
## Launch the test suite. ##
## ----------------------- ##
AT_INIT
# AT_SETUP([TITLE])
# -----------------
# Redefine AT_SETUP to be more concise. Must be done after AT_INIT.
m4_copy_force([AT_SETUP], [B4_SETUP])
m4_define([AT_SETUP],
[B4_SETUP(m4_expand([AT_SETUP_STRIP([[$1]])]))])
# Cannot assign CC and CFLAGS here, since atlocal is loaded after
# options are processed, so we don't know the value of CXX and
# CXXFLAGS yet.
#
# Note that it also means that command line values for CXX and
# CXXFLAGS will not be propagated to CC and CFLAGS.
AT_ARG_OPTION([compile-c-with-cxx],
[compile C parsers with the C++ compiler])
AT_COLOR_TESTS
AT_TESTED([bison])
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