mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-09 12:23:04 +00:00
ef09bf065a
This is a fork of glr.cc to be c++-first instead of a wrapper around glr.c. * data/skeletons/glr2.cc: New. * data/skeletons/bison.m4, data/skeletons/c++.m4: Adjust. * data/skeletons/c.m4 (b4_user_args_no_comma): New. * src/reader.c (grammar_rule_check_and_complete): glr2.cc is C++. * tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at, * tests/input.at, tests/local.at, tests/regression.at, tests/scanner.at, * tests/synclines.at, tests/types.at: Also check glr2.cc.
565 lines
12 KiB
Plaintext
565 lines
12 KiB
Plaintext
# Executing Actions. -*- Autotest -*-
|
|
|
|
# Copyright (C) 2002, 2004-2005, 2007, 2009-2015, 2018-2020 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/>.
|
|
|
|
AT_BANNER([[Sync Lines.]])
|
|
|
|
|
|
# _AT_SYNCLINES_COMPILE(FILE)
|
|
# ---------------------------
|
|
# Compile FILE expecting an error, and save in the file stdout the
|
|
# normalized output. Ignore the exit status, since some compilers
|
|
# (e.g. c89 on IRIX 6.5) trigger warnings on '#error', instead of
|
|
# errors.
|
|
m4_define([_AT_SYNCLINES_COMPILE],
|
|
[AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
|
|
|
|
# Transform the file 'stderr' into something like this:
|
|
#
|
|
# input.y:4: #error "4"
|
|
#
|
|
# In case GCC displays column information, strip it down.
|
|
#
|
|
# input.y:4:2: #error "4" or
|
|
# input.y:4.2: #error "4" or
|
|
# input.y:4:2: error: #error "4"
|
|
# =>
|
|
# input.y:4: #error "4"
|
|
#
|
|
# It may also issue more context information:
|
|
#
|
|
# input.y: In function 'yyparse':
|
|
# input.y:8: #error "8"
|
|
# =>
|
|
# input.y:4: #error "8"
|
|
#
|
|
# The message may include a caret-error (indented by GCC 4.8,
|
|
# not by clang 3.2):
|
|
#
|
|
# input.y:1:2: error: #error "1"
|
|
# #error "1"
|
|
# ^
|
|
#
|
|
# Possibly distcc adds its bits.
|
|
#
|
|
# distcc[33187] ERROR: compile (null) on localhost failed
|
|
# syncline.c:1:2: error: #error "1"
|
|
# distcc[33185] ERROR: compile syncline.c on localhost failed
|
|
#
|
|
# or even
|
|
#
|
|
# distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
|
|
# distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
|
|
#
|
|
# The compiler might end by the number of messages issued (Clang 3.2):
|
|
#
|
|
# syncline.c:1:2: error: "1"
|
|
# #error "1"
|
|
# ^
|
|
# 1 error generated.
|
|
#
|
|
# When c++ is used to compiler C, we might have more messages (Clang 3.2):
|
|
#
|
|
# clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
|
|
#
|
|
#
|
|
# xlc reports things like:
|
|
#
|
|
# "input.yy", line 80.21: 1540-0218 (S) The call does not match any parameter list for "operator<<".
|
|
# "/usr/vacpp/include/iosfwd", line 32.6: 1506-205 (S) #error This file to be used only with IBM VisualAge C++ v4 and later compilers
|
|
#
|
|
# Newer GCCs go further and if the function is declared static, complain
|
|
# that it's not used.
|
|
#
|
|
# GCC 7 also underlines the error.
|
|
#
|
|
# syncline.c:4:2: error: #error "4"
|
|
# #error "4"
|
|
# ^~~~~
|
|
#
|
|
# GCC 9 displays a left-hand margin with the line number:
|
|
#
|
|
# syncline.c: In function 'foo':
|
|
# syncline.c:4:2: error: #error "4"
|
|
# 4 | #error "4"
|
|
# | ^~~~~
|
|
AT_CHECK([["$PERL" -p -0777 - stderr <<\EOF || exit 77
|
|
# Remove left-hand margin.
|
|
s/^[\d ]{6}\| //gm;
|
|
|
|
# 1. Remove useless lines.
|
|
|
|
# distcc clutter.
|
|
s/^distcc\[\d+\] .*\n//gm;
|
|
# c vs. c++.
|
|
s/^clang: warning: treating 'c' input as 'c\+\+'.*\n//gm;
|
|
# Function context.
|
|
s/^[^:]*: In function '[^']+':\n//gm;
|
|
# Caret error (with possible '~' to underline).
|
|
s/^ *#error.*\n *\^~*\n//gm;
|
|
# Number of errors.
|
|
s/^1 error generated\.\n//gm;
|
|
|
|
# 2. Normalize the lines we kept.
|
|
|
|
# xlc messages. Remove also error identifier (e.g., "1540-0218 (S)").
|
|
s/^"(.*?)", line ([\w.]*): \d+-\d+ \(.\) /$][1:$][2: /gm;
|
|
# Remove column.
|
|
s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
|
|
# Map all combinations of "error: " and "#error: " to "#error ".
|
|
s/^([^:]+:\d+):( |#error|error|:)+/$][1: #error /gm;
|
|
EOF
|
|
]],
|
|
0, [stdout])
|
|
])
|
|
|
|
|
|
|
|
# AT_SYNCLINES_COMPILE(FILE)
|
|
# --------------------------
|
|
# Compile FILE expecting an error, and save in the file 'stdout' the
|
|
# normalized output. If we can't get a trustable location
|
|
# from the compiler, just skip the test.
|
|
#
|
|
# It seems impossible to find a generic scheme to check the location
|
|
# of an error. Even requiring GCC is not sufficient, since for instance
|
|
# the version modified by Apple:
|
|
#
|
|
# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
|
|
# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
|
|
# | 19991024 (release) configure:2124: $? = 0
|
|
#
|
|
# instead of:
|
|
#
|
|
# | input.y:2: #error "2"
|
|
#
|
|
# it reports:
|
|
#
|
|
# | input.y:2: "2"
|
|
# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
|
|
m4_define([AT_SYNCLINES_COMPILE],
|
|
[# Check if we can trust location translation.
|
|
AT_DATA([syncline.c],
|
|
[[void foo (void);
|
|
void foo (void)
|
|
{
|
|
#error "4"
|
|
}
|
|
]])
|
|
|
|
_AT_SYNCLINES_COMPILE([syncline.c])
|
|
AT_REQUIRE([[test "`cat stdout`" = 'syncline.c:4: @%:@error "4"']])
|
|
|
|
# Then work for real.
|
|
_AT_SYNCLINES_COMPILE([$1])
|
|
])
|
|
|
|
|
|
# AT_TEST(TITLE, INPUT, ERROR-MSG)
|
|
# --------------------------------
|
|
# Check that compiling the parser produced from INPUT cause GCC
|
|
# to issue ERROR-MSG.
|
|
m4_pushdef([AT_TEST],
|
|
[AT_SETUP([$1])
|
|
AT_BISON_OPTION_PUSHDEFS
|
|
|
|
AT_DATA([[input.y]], [$2])
|
|
AT_BISON_CHECK([-o input.c input.y])
|
|
AT_SYNCLINES_COMPILE([input.c])
|
|
AT_CHECK([cat stdout], 0, [$3])
|
|
AT_BISON_OPTION_POPDEFS
|
|
AT_CLEANUP
|
|
])
|
|
|
|
|
|
## ------------------- ##
|
|
## Prologue syncline. ##
|
|
## ------------------- ##
|
|
|
|
|
|
AT_TEST([Prologue syncline],
|
|
[[%{
|
|
#error "2"
|
|
%}
|
|
%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
}
|
|
%%
|
|
exp: '0';
|
|
%%
|
|
]],
|
|
[input.y:2: #error "2"
|
|
])
|
|
|
|
|
|
## ----------------- ##
|
|
## %union syncline. ##
|
|
## ----------------- ##
|
|
|
|
AT_TEST([%union syncline],
|
|
[[%union {
|
|
#error "2"
|
|
char dummy;
|
|
}
|
|
%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
}
|
|
%%
|
|
exp: '0';
|
|
%%
|
|
]],
|
|
[input.y:2: #error "2"
|
|
])
|
|
|
|
|
|
## ---------------------- ##
|
|
## %union name syncline. ##
|
|
## ---------------------- ##
|
|
|
|
# Check that invalid union names are properly reported in the
|
|
# source file.
|
|
AT_SETUP([%union name syncline])
|
|
AT_BISON_OPTION_PUSHDEFS
|
|
AT_DATA([[input.y]],
|
|
[[%union break
|
|
{
|
|
char dummy;
|
|
}
|
|
%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
%}
|
|
%%
|
|
exp: '0';
|
|
%%
|
|
]])
|
|
|
|
AT_BISON_CHECK([-o input.c input.y])
|
|
AT_SYNCLINES_COMPILE([input.c])
|
|
AT_CHECK([[grep '^input.y:1' stdout]], 0, [ignore])
|
|
AT_BISON_OPTION_POPDEFS
|
|
AT_CLEANUP
|
|
|
|
|
|
## ----------------------- ##
|
|
## Postprologue syncline. ##
|
|
## ----------------------- ##
|
|
|
|
AT_TEST([Postprologue syncline],
|
|
[[%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
}
|
|
%{
|
|
/* Preprologue. */
|
|
%}
|
|
%union
|
|
{
|
|
int ival;
|
|
}
|
|
%{
|
|
#error "13"
|
|
%}
|
|
%%
|
|
exp: '0';
|
|
%%
|
|
]],
|
|
[input.y:13: #error "13"
|
|
])
|
|
|
|
|
|
## ----------------- ##
|
|
## Action syncline. ##
|
|
## ----------------- ##
|
|
|
|
AT_TEST([Action syncline],
|
|
[[%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
}
|
|
%%
|
|
exp:
|
|
{
|
|
#error "8"
|
|
};
|
|
]],
|
|
[input.y:8: #error "8"
|
|
])
|
|
|
|
|
|
## ------------------- ##
|
|
## Epilogue syncline. ##
|
|
## ------------------- ##
|
|
|
|
AT_TEST([Epilogue syncline],
|
|
[[%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
}
|
|
%%
|
|
exp: '0';
|
|
%%
|
|
#error "8"
|
|
]],
|
|
[input.y:8: #error "8"
|
|
])
|
|
|
|
## -------------------- ##
|
|
## %code top syncline. ##
|
|
## -------------------- ##
|
|
|
|
AT_TEST([%code top syncline],
|
|
[[%code top {
|
|
#error "2"
|
|
}
|
|
%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
}
|
|
%%
|
|
exp: '0';
|
|
%%
|
|
]],
|
|
[input.y:2: #error "2"
|
|
])
|
|
|
|
## ---------------------- ##
|
|
## %destructor syncline. ##
|
|
## ---------------------- ##
|
|
|
|
AT_TEST([%destructor syncline],
|
|
[[%destructor {
|
|
#error "2"
|
|
} <ival>
|
|
%{
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
%}
|
|
%union {
|
|
int ival;
|
|
}
|
|
%type <ival> exp
|
|
%%
|
|
exp: '0' { $$ = 0; };
|
|
%%
|
|
]],
|
|
[input.y:2: #error "2"
|
|
])
|
|
|
|
|
|
## ------------------- ##
|
|
## %printer syncline. ##
|
|
## ------------------- ##
|
|
|
|
AT_TEST([%printer syncline],
|
|
[[%printer {
|
|
#error "2"
|
|
} <ival>
|
|
%debug
|
|
%code {
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
}
|
|
%union {
|
|
int ival;
|
|
}
|
|
%type <ival> exp
|
|
%%
|
|
exp: '0' { $$ = 0; };
|
|
%%
|
|
]],
|
|
[input.y:2: #error "2"
|
|
])
|
|
|
|
m4_popdef([AT_TEST])
|
|
|
|
|
|
|
|
## ------------------ ##
|
|
## syncline escapes. ##
|
|
## ------------------ ##
|
|
|
|
# AT_TEST([SKELETON])
|
|
# -------------------
|
|
m4_pushdef([AT_TEST],
|
|
[AT_SETUP([syncline escapes: $1])
|
|
|
|
AT_BISON_OPTION_PUSHDEFS([%skeleton "$1"])
|
|
|
|
# ICC is unable to handle these file names: it fails to pass them
|
|
# properly to the linker, and is unable to save a file named this way.
|
|
# Don't try with such compilers.
|
|
AT_DATA([\"\\\"\".AT_LANG_EXT],
|
|
[[int main (void) { return 0; }
|
|
]])
|
|
|
|
AT_REQUIRE([AT_CXX_IF([$CXX $CXXFLAGS], [$CC $CFLAGS]) $CPPFLAGS \"\\\"\".]AT_LANG_EXT[ -o \"\\\"\"],
|
|
[0], [ignore], [ignore])
|
|
|
|
AT_DATA_GRAMMAR([\"\\\"\".y],
|
|
[[%skeleton "$1"
|
|
%code {
|
|
]AT_YYERROR_DECLARE[
|
|
]AT_YYLEX_DECLARE[
|
|
}
|
|
%destructor {} <>
|
|
%printer {} <>
|
|
%%
|
|
exp: '0'
|
|
%%
|
|
]AT_YYERROR_DEFINE[
|
|
]AT_YYLEX_DEFINE[
|
|
]AT_MAIN_DEFINE[
|
|
]])
|
|
|
|
# Maybe we tried to create a file name that the file system does not
|
|
# support.
|
|
AT_SKIP_IF([[test ! -f \"\\\"\".y]])
|
|
AT_FULL_COMPILE([\"\\\"\"])
|
|
AT_BISON_OPTION_POPDEFS
|
|
|
|
AT_CLEANUP
|
|
])
|
|
|
|
m4_map_args([AT_TEST], [yacc.c], [glr.c], [lalr1.cc], [glr.cc], [glr2.cc])
|
|
|
|
m4_popdef([AT_TEST])
|
|
|
|
|
|
|
|
## ----------- ##
|
|
## %no-lines. ##
|
|
## ----------- ##
|
|
|
|
# AT_TEST([SKELETON])
|
|
# -------------------
|
|
m4_pushdef([AT_TEST],
|
|
[AT_SETUP([%no-lines: $1])
|
|
|
|
AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
|
|
AT_DATA_GRAMMAR([input.y],
|
|
[[%skeleton "$1" %defines
|
|
%{
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
%}
|
|
%union {
|
|
int ival;
|
|
}
|
|
%%
|
|
exp: '0'
|
|
]])
|
|
|
|
# Generate without.* without the #line. Don't use -o without.c which
|
|
# would change the content (e.g., CPP guard depend on the output file
|
|
# name).
|
|
AT_BISON_CHECK([--no-lines -o input.AT_LANG_EXT -d input.y])
|
|
AT_CHECK([mv input.]AT_LANG_EXT[ without.]AT_LANG_EXT[])
|
|
AT_CHECK([mv input.]AT_LANG_HDR[ without.]AT_LANG_HDR[])
|
|
# There is no #line at all.
|
|
AT_CHECK([grep '#line' *.]AT_LANG_EXT[ *.]AT_LANG_HDR[], 1)
|
|
|
|
# Generate with.* without the #line.
|
|
AT_BISON_CHECK([-o input.AT_LANG_EXT -d input.y])
|
|
AT_CHECK([mv input.]AT_LANG_EXT[ with.]AT_LANG_EXT[])
|
|
AT_CHECK([mv input.]AT_LANG_HDR[ with.]AT_LANG_HDR[])
|
|
|
|
# The implementation file with --no-line is exactly the
|
|
# original one with #lines removed.
|
|
AT_CHECK([grep -v '#line' with.]AT_LANG_EXT[ >expout])
|
|
AT_CHECK([cat without.AT_LANG_EXT], 0, [expout])
|
|
|
|
# Likewise for the header.
|
|
AT_CHECK([grep -v '#line' with.]AT_LANG_HDR[ >expout])
|
|
AT_CHECK([cat without.AT_LANG_HDR], 0, [expout])
|
|
|
|
AT_BISON_OPTION_POPDEFS
|
|
|
|
AT_CLEANUP
|
|
])
|
|
|
|
m4_map_args([AT_TEST], [yacc.c], [glr.c], [lalr1.cc], [glr.cc], [glr2.cc])
|
|
|
|
m4_popdef([AT_TEST])
|
|
|
|
|
|
|
|
## ---------------- ##
|
|
## Output columns. ##
|
|
## ---------------- ##
|
|
|
|
AT_SETUP([Output columns])
|
|
|
|
# This test is fragile: its point is to check the compiler's error
|
|
# message, but it seems too hard to do portability (even between
|
|
# version of GCC). So instead, let's just check the generated code
|
|
# itself.
|
|
|
|
AT_BISON_OPTION_PUSHDEFS
|
|
AT_DATA([input.y],
|
|
[[%{
|
|
]AT_YYERROR_DECLARE_EXTERN[
|
|
]AT_YYLEX_DECLARE_EXTERN[
|
|
%}
|
|
%define api.value.type union
|
|
%type <int> '0' exp
|
|
%destructor { /* --BEGIN */
|
|
destructor
|
|
/* --END */ } <*>
|
|
%printer { /* --BEGIN */
|
|
printer
|
|
/* --END */ } <*>
|
|
|
|
|
|
|
|
%left '+'
|
|
%%
|
|
exp: exp '+' exp { /* --BEGIN */
|
|
$$ = $1 + $3;
|
|
@$ = @1 + @3;
|
|
/* --END */ }
|
|
| '0'
|
|
]])
|
|
|
|
AT_BISON_CHECK([-o input.c input.y])
|
|
AT_CHECK([[sed -ne '/--BEGIN/,/--END/{' \
|
|
-e '/input.c/s/ [0-9]* / LINE /;' \
|
|
-e 'p;}' \
|
|
input.c]], 0,
|
|
[[ { /* --BEGIN */
|
|
printer
|
|
/* --END */ }
|
|
{ /* --BEGIN */
|
|
printer
|
|
/* --END */ }
|
|
{ /* --BEGIN */
|
|
destructor
|
|
/* --END */ }
|
|
{ /* --BEGIN */
|
|
destructor
|
|
/* --END */ }
|
|
{ /* --BEGIN */
|
|
(yyval.exp) = (yyvsp[-2].exp) + (yyvsp[0].exp);
|
|
(yyloc) = (yylsp[-2]) + (yylsp[0]);
|
|
/* --END */ }
|
|
]])
|
|
|
|
AT_BISON_OPTION_POPDEFS
|
|
AT_CLEANUP
|