1# Executing Actions. -*- Autotest -*- 2 3# Copyright (C) 2002, 2004-2005, 2007, 2009-2012 Free Software 4# Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10# 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15# 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <http://www.gnu.org/licenses/>. 18 19AT_BANNER([[User Actions.]]) 20 21 22# AT_SYNCLINES_COMPILE(FILE) 23# -------------------------- 24# Compile FILE expecting an error, and save in the file stdout the 25# normalized output. Ignore the exit status, since some compilers 26# (e.g. c89 on IRIX 6.5) trigger warnings on `#error', instead of 27# errors. 28m4_define([AT_SYNCLINES_COMPILE], 29[AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr]) 30 31# Transform stderr into something like this: 32# 33# input.y:4: #error "4" 34# 35# In case GCC displays column information, strip it down. 36# 37# input.y:4:2: #error "4" or 38# input.y:4.2: #error "4" or 39# input.y:4:2: error: #error "4" 40# => 41# input.y:4: #error "4" 42# 43# It may also issue more context information: 44# 45# input.y: In function 'yyparse': 46# input.y:8: #error "8" 47# => 48# input.y:4: #error "8" 49# 50# The message may include a caret-error (indented by GCC 4.8, 51# not by clang 3.2): 52# 53# input.y:1:2: error: #error "1" 54# #error "1" 55# ^ 56# 57# Possibly distcc adds its bits. 58# 59# distcc[33187] ERROR: compile (null) on localhost failed 60# syncline.c:1:2: error: #error "1" 61# distcc[33185] ERROR: compile syncline.c on localhost failed 62# 63# or even 64# 65# distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host 66# distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead 67# 68# The compiler might end by the number of messages issued (Clang 3.2): 69# 70# syncline.c:1:2: error: "1" 71# #error "1" 72# ^ 73# 1 error generated. 74# 75# When c++ is used to compiler C, we might have more messages (Clang 3.2): 76# 77# clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated 78 79AT_CHECK([[$PERL -p -0777 - stderr <<\EOF 80 # 1. Remove useless lines. 81 82 # distcc clutter. 83 s/^distcc\[\d+\] .*\n//gm; 84 # c vs. c++. 85 s/^clang: warning: treating 'c' input as 'c\+\+'.*\n//gm; 86 # Function context. 87 s/^[^:]*: In function '[^']+':\n//gm; 88 # Caret error. 89 s/^ *#error.*\n *\^\n//gm; 90 # Number of errors. 91 s/^1 error generated\.\n//gm; 92 93 # 2. Normalize the lines we kept. 94 95 # Remove column. 96 s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm; 97 # Map all combinations of "error: " and "#error: " to "#error ". 98 s/^([^:]+:\d+):( |#error|error|:)+/$][1: #error /gm; 99EOF 100]], 101 0, [stdout]) 102]) 103 104# AT_TEST(TITLE, INPUT, ERROR-MSG) 105# -------------------------------- 106# Check that compiling the parser produced from INPUT cause GCC 107# to issue ERROR-MSG. 108m4_pushdef([AT_TEST], 109[AT_SETUP([$1]) 110AT_BISON_OPTION_PUSHDEFS 111# It seems impossible to find a generic scheme to check the location 112# of an error. Even requiring GCC is not sufficient, since for instance 113# the version modified by Apple: 114# 115# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs 116# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2 117# | 19991024 (release) configure:2124: $? = 0 118# 119# instead of: 120# 121# | input.y:2: #error "2" 122# 123# it reports: 124# 125# | input.y:2: "2" 126# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode 127 128AT_DATA([syncline.c], 129[[#error "1" 130int i; /* avoids -pedantic warning about an empty translation unit. */ 131]]) 132 133AT_SYNCLINES_COMPILE([syncline.c]) 134AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]]) 135 136AT_DATA([[input.y]], [$2]) 137AT_BISON_CHECK([-o input.c input.y]) 138AT_SYNCLINES_COMPILE([input.c]) 139AT_CHECK([cat stdout], 0, [$3]) 140AT_BISON_OPTION_POPDEFS 141AT_CLEANUP 142]) 143 144 145## ------------------- ## 146## Prologue syncline. ## 147## ------------------- ## 148 149 150AT_TEST([Prologue syncline], 151[[%{ 152#error "2" 153]AT_YYERROR_DECLARE_EXTERN[ 154]AT_YYLEX_DECLARE_EXTERN[ 155%} 156%% 157exp: '0'; 158%% 159]], 160[input.y:2: #error "2" 161]) 162 163 164## ----------------- ## 165## %union syncline. ## 166## ----------------- ## 167 168AT_TEST([%union syncline], 169[[%union { 170#error "2" 171 char dummy; 172} 173%{ 174]AT_YYERROR_DECLARE_EXTERN[ 175]AT_YYLEX_DECLARE_EXTERN[ 176%} 177%% 178exp: '0'; 179%% 180]], 181[input.y:2: #error "2" 182]) 183 184 185## ----------------------- ## 186## Postprologue syncline. ## 187## ----------------------- ## 188 189AT_TEST([Postprologue syncline], 190[[%{ 191]AT_YYERROR_DECLARE_EXTERN[ 192]AT_YYLEX_DECLARE_EXTERN[ 193%} 194%union 195{ 196 int ival; 197} 198%{ 199#error "10" 200%} 201%% 202exp: '0'; 203%% 204]], 205[input.y:10: #error "10" 206]) 207 208 209## ----------------- ## 210## Action syncline. ## 211## ----------------- ## 212 213AT_TEST([Action syncline], 214[[%{ 215]AT_YYERROR_DECLARE_EXTERN[ 216]AT_YYLEX_DECLARE_EXTERN[ 217%} 218%% 219exp: 220{ 221#error "8" 222}; 223]], 224[input.y:8: #error "8" 225]) 226 227 228## ------------------- ## 229## Epilogue syncline. ## 230## ------------------- ## 231 232AT_TEST([Epilogue syncline], 233[[%{ 234]AT_YYERROR_DECLARE_EXTERN[ 235]AT_YYLEX_DECLARE_EXTERN[ 236%} 237%% 238exp: '0'; 239%% 240#error "8" 241]], 242[input.y:8: #error "8" 243]) 244 245## -------------------- ## 246## %code top syncline. ## 247## -------------------- ## 248 249AT_TEST([%code top syncline], 250[[%code top { 251#error "2" 252} 253%{ 254]AT_YYERROR_DECLARE_EXTERN[ 255]AT_YYLEX_DECLARE_EXTERN[ 256%} 257%% 258exp: '0'; 259%% 260]], 261[input.y:2: #error "2" 262]) 263 264m4_popdef([AT_TEST]) 265 266## ----------- ## 267## %no-lines. ## 268## ----------- ## 269 270m4_pushdef([AT_TEST], 271[AT_SETUP([%no-lines]) 272 273AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines]) 274AT_DATA_GRAMMAR([input.y], 275[%skeleton "$1" %defines 276%{ 277]AT_YYERROR_DECLARE_EXTERN[ 278]AT_YYLEX_DECLARE_EXTERN[ 279%} 280%% 281exp: '0' 282]) 283AT_BISON_CHECK([--no-lines -o input.AT_SKEL_CC_IF([cc], [c]) -d input.y]) 284AT_CHECK([[grep '#line' ]AT_SKEL_CC_IF([*.cc *.hh], [*.c *.h])], 1) 285AT_BISON_OPTION_POPDEFS 286 287AT_CLEANUP 288]) 289 290AT_TEST([yacc.c]) 291AT_TEST([glr.c]) 292AT_TEST([lalr1.cc]) 293AT_TEST([glr.cc]) 294 295m4_popdef([AT_TEST]) 296