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],
+ [$3])])
+
## ------------- ##
## Basic tests. ##
## ------------- ##
# Expect COUNT matches of the PERL-REGEXP in FILE. The file is
# taken in "slurp" mode, i.e., one can match end-of-lines.
m4_define([AT_MATCHES_CHECK],
-[AT_CHECK([perl -0777 -ne '
+[AT_CHECK([$PERL -0777 -ne '
my $count = 0;
s{$2}{ ++$count; "" }gem;
printf "$count\n";' $1], [0], [$3
{
for at_save_file in stderr experr expout
do
+ test ! -f at-bison-check-$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_BISON_OPTION_PUSHDEFS([BISON-OPTIONS])
# -----------------------------------------
m4_define([AT_BISON_OPTION_PUSHDEFS],
-[_AT_BISON_OPTION_PUSHDEFS($[1], $[2], [$1])])
+[m4_divert_text([KILL],
+ [_AT_BISON_OPTION_PUSHDEFS($[1], $[2], [$1])])])
# _AT_BISON_OPTION_PUSHDEFS($1, $2, [BISON-OPTIONS])
[m4_bmatch([$3], [%language "[Cc]\+\+"\|%skeleton "[a-z0-9]+\.cc"], [$1], [$2])])
m4_pushdef([AT_SKEL_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_SKEL_JAVA_IF([java],
[AT_SKEL_CC_IF([c++],
[m4_bmatch([$3], [%define location_type], [$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 } {int y} -> "int x, int y, ".
+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])],
[m4_bmatch([$3], [%define api\.prefix ".*"],
[m4_bregexp([$3], [%define api\.prefix "\([^""]*\)"], [\1])],
[yy])])
+m4_pushdef([AT_API_PREFIX],
+[m4_toupper(AT_API_prefix)])
# yyerror receives the location if %location & %pure & (%glr or %parse-param).
m4_pushdef([AT_YYERROR_ARG_LOC_IF],
[AT_GLR_OR_PARAM_IF([AT_PURE_AND_LOC_IF([$1], [$2])],
[AT_PURE_IF([$1],
[AT_SKEL_CC_IF([$1], [$2])])])
+m4_pushdef([AT_YYSTYPE],
+[AT_SKEL_CC_IF([AT_NAME_PREFIX[::parser::semantic_type]],
+ [AT_API_PREFIX[STYPE]])])
+m4_pushdef([AT_YYLTYPE],
+[AT_SKEL_CC_IF([AT_NAME_PREFIX[::parser::location_type]],
+ [AT_API_PREFIX[LTYPE]])])
+
+
AT_PURE_LEX_IF(
[m4_pushdef([AT_LOC], [(*llocp)])
m4_pushdef([AT_VAL], [(*lvalp)])
m4_pushdef([AT_YYLEX_FORMALS],
- [YYSTYPE *lvalp[]AT_LOCATION_IF([, YYLTYPE *llocp])])
+ [AT_YYSTYPE *lvalp[]AT_LOCATION_IF([, AT_YYLTYPE *llocp])])
m4_pushdef([AT_YYLEX_ARGS],
[lvalp[]AT_LOCATION_IF([, llocp])])
m4_pushdef([AT_USE_LEX_ARGS],
# AT_BISON_OPTION_POPDEFS
# -----------------------
m4_define([AT_BISON_OPTION_POPDEFS],
+[m4_divert_text([KILL],
[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_NAME_PREFIX])
m4_popdef([AT_GLR_OR_PARAM_IF])
m4_popdef([AT_PURE_AND_LOC_IF])
m4_popdef([AT_LOCATION_TYPE_IF])
m4_popdef([AT_LOCATION_IF])
+m4_popdef([AT_PARSE_PARAMS])
m4_popdef([AT_PARAM_IF])
m4_popdef([AT_LEXPARAM_IF])
m4_popdef([AT_YACC_IF])
m4_popdef([AT_GLR_CC_IF])
m4_popdef([AT_LALR1_CC_IF])
m4_popdef([AT_DEFINES_IF])
-AT_LOC_POPDEF
+AT_LOC_POPDEF])dnl
])# AT_BISON_OPTION_POPDEFS
# AT_YYLEX_PROTOTYPE
# AT_YYLEX_DECLARE_EXTERN
# AT_YYLEX_DECLARE
-# AT_YYLEX_DEFINE(INPUT-STRING, [ACTION])
-# ---------------------------------------
+# 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],
[int AT_NAME_PREFIX[]lex (]AT_YYLEX_FORMALS[)[]dnl
])
])
m4_define([AT_YYLEX_DEFINE],
-[[#include <stdlib.h> /* abort */
+[[#include <assert.h>
static
]AT_YYLEX_PROTOTYPE[
{
- static char const input[] = "$1";
+ ]m4_bmatch([$1], [^\(".*"\)?$],
+ [[static char const input[] = ]m4_default([$1], [""])],
+ [[static int const input[] = ]$1])[;
static size_t toknum = 0;
int res;
- if (! (toknum < sizeof input))
- abort ();
+ ]AT_USE_LEX_ARGS[;
+ assert (toknum < sizeof input / sizeof input[0]);
res = input[toknum++];
- ]$2;[]AT_LOCATION_IF([[
- ]AT_NAME_PREFIX[lloc.first_line = ]AT_NAME_PREFIX[lloc.last_line = 1;
- ]AT_NAME_PREFIX[lloc.first_column = ]AT_NAME_PREFIX[lloc.last_column = toknum;]])[
+ ]$2[;]AT_LOCATION_IF([[
+ ]AT_LOC_FIRST_LINE[ = ]AT_LOC_LAST_LINE[ = 1;
+ ]AT_LOC_FIRST_COLUMN[ = ]AT_LOC_LAST_COLUMN[ = toknum;]])[
return res;
}]dnl
])
# Must be called inside a AT_BISON_OPTION_PUSHDEFS/POPDEFS pair.
m4_define([AT_YYERROR_FORMALS],
[m4_case(AT_LANG,
-[c], [AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])[const char *msg]])[]dnl
+[c], [AT_YYERROR_ARG_LOC_IF([AT_YYLTYPE *llocp, ])AT_PARSE_PARAMS [const char *msg]])[]dnl
])
m4_define([AT_YYERROR_PROTOTYPE],
/* A C error reporting function. */
static
]AT_YYERROR_PROTOTYPE[
-{
-]AT_YYERROR_SEES_LOC_IF([[
- fprintf (stderr, "%d.%d",
- ]AT_LOC_FIRST_LINE[, ]AT_LOC_FIRST_COLUMN[);
- if (]AT_LOC_FIRST_LINE[ != ]AT_LOC_LAST_LINE[)
- fprintf (stderr, "-%d.%d",
- ]AT_LOC_LAST_LINE[, ]AT_LOC_LAST_COLUMN[ - 1);
- else if (]AT_LOC_FIRST_COLUMN[ != ]AT_LOC_LAST_COLUMN[ - 1)
- fprintf (stderr, "-%d",
- ]AT_LOC_LAST_COLUMN[ - 1);
+{]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([[
+ YY_LOCATION_PRINT (stderr, ]AT_LOC[);
fprintf (stderr, ": ");]])[
fprintf (stderr, "%s\n", msg);
}]],
public void yyerror (String s)
{
System.err.println (s);
- }]])])dnl
+ }]])],
+[m4_fatal([$0: invalid language: ]AT_LANG)])dnl
])
# 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
#
# 4. If stderr contains a warning, -Wnone and --warnings=none suppress it.
m4_define([AT_BISON_CHECK],
-[m4_if(m4_quote($2), [0], [AT_BISON_CHECK_XML($@)],
- m4_quote($2), [], [AT_BISON_CHECK_XML($@)])
+[m4_null_if([$2], [AT_BISON_CHECK_XML($@)])
AT_BISON_CHECK_NO_XML($@)])
m4_define([AT_BISON_WERROR_MSG],
[[bison: warnings being treated as errors]])
+
+# AT_BISON_CHECK_(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
+# --------------------------------------------------
+# Low-level macro to run bison once.
+m4_define([AT_BISON_CHECK_],
+[AT_CHECK(AT_QUELL_VALGRIND[[ bison ]]$@)])
+
+
+# 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.
+m4_define([AT_BISON_CHECK_WARNINGS],
+[m4_if(m4_bregexp([$4], [: warning: ]), [-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.
+#
+# Don't just check if $POSIXLY_CORRECT is set, as Bash, when launched
+# as /bin/sh, sets the shell variable POSIXLY_CORRECT to y, but not
+# the environment variable.
+if env | grep '^POSIXLY_CORRECT=' >/dev/null; then :; else
+ ]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])[
+
+ # Build expected stderr up to and including the "warnings being
+ # treated as errors" message.
+ ]AT_DATA([[at-bison-check-warnings]], [$4])[
+ at_bison_check_first=`sed -n \
+ '/: warning: /{=;q;}' at-bison-check-warnings`
+ : ${at_bison_check_first:=1}
+ at_bison_check_first_tmp=`sed -n \
+ '/conflicts: [0-9].*reduce$/{=;q;}' at-bison-check-warnings`
+ : ${at_bison_check_first_tmp:=1}
+ if test $at_bison_check_first_tmp -lt $at_bison_check_first; then
+ at_bison_check_first=$at_bison_check_first_tmp
+ fi
+ if test $at_bison_check_first -gt 1; then
+ sed -n "1,`expr $at_bison_check_first - 1`"p \
+ at-bison-check-warnings > experr
+ fi
+ echo ']AT_BISON_WERROR_MSG[' >> experr
+
+ # Finish building expected stderr and check. Unlike warnings,
+ # complaints cause bison to exit early. Thus, with -Werror, bison
+ # does not necessarily report all warnings that it does without
+ # -Werror, but it at least reports one.
+ at_bison_check_last=`sed -n '$=' stderr`
+ : ${at_bison_check_last:=1}
+ at_bison_check_last=`expr $at_bison_check_last - 1`
+ sed -n "$at_bison_check_first,$at_bison_check_last"p \
+ at-bison-check-warnings >> experr
+ ]AT_CHECK([[sed 's,.*/\(]AT_BISON_WERROR_MSG[\)$,\1,' \
+ stderr 1>&2]], [[0]], [[]], [experr])[
+
+ # Now check --warnings=error.
+ cp stderr experr
+ ]AT_BISON_CHECK_([$1[ --warnings=error]], [[1]], [expout], [experr])[
+
+ # Now check -Wnone and --warnings=none by making sure that
+ # -Werror doesn't change the exit status when -Wnone or
+ # --warnings=none is specified.
+ ]AT_BISON_CHECK_([$1[ -Wnone -Werror]], [[0]], [expout])[
+ ]AT_BISON_CHECK_([$1[ --warnings=none -Werror]], [[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(m4_if(m4_quote($2), [0], [], m4_quote($2), [], [],
- [AT_QUELL_VALGRIND ])[[bison ]]$@)
-m4_if(m4_bregexp([$4], [: warning: ]), [-1], [],
- m4_quote(m4_if(m4_quote($2), [], [0], [$2])), [0], [[
- # Defining POSIXLY_CORRECT causes bison to complain if options
- # are added after the grammar file name, so skip these checks
- # in that case.
- if test -z "${POSIXLY_CORRECT+set}"; then
- ]AT_SAVE_SPECIAL_FILES[
-
- # To avoid expanding it repeatedly, store specified stdout.
- ]AT_DATA([expout], [$3])[
-
- # Run with -Werror.
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ -Werror]],
- [[1]], [expout], [stderr])[
-
- # Build expected stderr up to and including the "warnings being
- # treated as errors" message.
- ]AT_DATA([[at-bison-check-warnings]], [$4])[
- at_bison_check_first=`sed -n \
- '/: warning: /{=;q;}' at-bison-check-warnings`
- : ${at_bison_check_first:=1}
- at_bison_check_first_tmp=`sed -n \
- '/conflicts: [0-9].*reduce$/{=;q;}' at-bison-check-warnings`
- : ${at_bison_check_first_tmp:=1}
- if test $at_bison_check_first_tmp -lt $at_bison_check_first; then
- at_bison_check_first=$at_bison_check_first_tmp
- fi
- if test $at_bison_check_first -gt 1; then
- sed -n "1,`expr $at_bison_check_first - 1`"p \
- at-bison-check-warnings > experr
- fi
- echo ']AT_BISON_WERROR_MSG[' >> experr
-
- # Finish building expected stderr and check. Unlike warnings,
- # complaints cause bison to exit early. Thus, with -Werror, bison
- # does not necessarily report all warnings that it does without
- # -Werror, but it at least reports one.
- at_bison_check_last=`sed -n '$=' stderr`
- : ${at_bison_check_last:=1}
- at_bison_check_last=`expr $at_bison_check_last - 1`
- sed -n "$at_bison_check_first,$at_bison_check_last"p \
- at-bison-check-warnings >> experr
- ]AT_CHECK([[sed 's,.*/\(]AT_BISON_WERROR_MSG[\)$,\1,' \
- stderr 1>&2]], [[0]], [[]], [experr])[
-
- # Now check --warnings=error.
- cp stderr experr
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ --warnings=error]],
- [[1]], [expout], [experr])[
-
- # Now check -Wnone and --warnings=none by making sure that
- # -Werror doesn't change the exit status when -Wnone or
- # --warnings=none is specified.
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ -Wnone -Werror]],
- [[0]], [expout])[
- ]AT_CHECK(AT_QUELL_VALGRIND[[ bison ]$1[ --warnings=none \
- -Werror]], [[0]], [expout])[
-
- ]AT_RESTORE_SPECIAL_FILES[
- fi
- ]])
-])
+[AT_CHECK(m4_null_if([$2], [], [AT_QUELL_VALGRIND ])[[bison ]]$@)
+AT_BISON_CHECK_WARNINGS($@)])
# AT_BISON_CHECK_XML(BISON_ARGS, [OTHER_AT_CHECK_ARGS])
# -----------------------------------------------------
[--xml=[^][ ]*], [])])dnl
# Don't combine these Bison invocations since we want to be sure that
# --report=all isn't required to get the full XML file.
- AT_CHECK([[bison --report=all --report-file=xml-tests/test.output \
- --graph=xml-tests/test.dot ]]AT_BISON_ARGS,
- [[0]], [ignore], [ignore])
- AT_CHECK([[bison --xml=xml-tests/test.xml ]]AT_BISON_ARGS,
- [[0]], [ignore], [ignore])
+ AT_BISON_CHECK_([[--report=all --report-file=xml-tests/test.output \
+ --graph=xml-tests/test.dot ]]AT_BISON_ARGS,
+ [[0]], [ignore], [ignore])
+ AT_BISON_CHECK_([[--xml=xml-tests/test.xml ]]AT_BISON_ARGS,
+ [[0]], [ignore], [ignore])
m4_popdef([AT_BISON_ARGS])dnl
[cp xml-tests/test.output expout]
AT_CHECK([[$XSLTPROC \
m4_define([AT_QUELL_VALGRIND],
[[[VALGRIND_OPTS="$VALGRIND_OPTS --leak-check=summary --show-reachable=no"; export VALGRIND_OPTS;]]])
+
+
## ------------------------ ##
## Compiling C, C++ Files. ##
## ------------------------ ##
# AT_COMPILE(OUTPUT, [SOURCES = OUTPUT.c])
# ----------------------------------------
-# Compile SOURCES into OUTPUT. If OUTPUT does not contain '.',
-# assume that we are linking too; this is a hack.
+# Compile SOURCES into OUTPUT.
+#
+# If OUTPUT does not contain '.', assume that we are linking too,
+# otherwise pass "-c"; this is a hack. The default SOURCES is OUTPUT
+# with trailing .o removed, and ".c" appended.
m4_define([AT_COMPILE],
-[AT_CHECK([$CC $CFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.c])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
+[AT_CHECK(m4_join([ ],
+ [$CC $CFLAGS $CPPFLAGS],
+ [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])
-# --------------------------------------------
-# Compile SOURCES into OUTPUT. If OUTPUT does not contain '.',
-# assume that we are linking too; this is a hack.
-# If the C++ compiler does not work, ignore the test.
+# ---------------------------------------------
+# 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_CHECK([$BISON_CXX_WORKS], 0, ignore, ignore)
-AT_CHECK([$CXX $CXXFLAGS $CPPFLAGS m4_bmatch([$1], [[.]], [], [$LDFLAGS ])-o $1 m4_default([$2], [$1.cc])[]m4_bmatch([$1], [[.]], [], [ $LIBS])],
+AT_CHECK(m4_join([ ],
+ [$CXX $CXXFLAGS $CPPFLAGS],
+ [m4_bmatch([$1], [[.]], [-c], [$LDFLAGS])],
+ [-o $1],
+ [m4_default([$2], [m4_bpatsubst([$1], [\.o$]).cc])],
+ [m4_bmatch([$1], [[.]], [], [$LIBS])]),
0, [ignore], [ignore])])
# AT_JAVA_COMPILE(SOURCES)
# is not installed.
m4_define([AT_JAVA_COMPILE],
[AT_KEYWORDS(java)
-AT_SKIP_IF([[test -z "$CONF_JAVA$CONF_JAVAC"]])
+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_COMPILE(OUTPUT, [SOURCES = OUTPUT.c]
# --------------------------------------------
+# 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],
[m4_case(AT_LANG,
[c], [AT_COMPILE([$1], [$2])],
projects / bison.git / blobdiff