295 lines
6.1 KiB
Text
295 lines
6.1 KiB
Text
# Executing Actions. -*- Autotest -*-
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# Copyright (C) 2002, 2004-2005, 2007, 2009-2012 Free Software
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# Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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AT_BANNER([[User Actions.]])
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# AT_SYNCLINES_COMPILE(FILE)
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# --------------------------
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# Compile FILE expecting an error, and save in the file stdout the
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# normalized output. Ignore the exit status, since some compilers
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# (e.g. c89 on IRIX 6.5) trigger warnings on `#error', instead of
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# errors.
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m4_define([AT_SYNCLINES_COMPILE],
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[AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
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# Transform stderr into something like this:
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#
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# input.y:4: #error "4"
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#
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# In case GCC displays column information, strip it down.
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#
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# input.y:4:2: #error "4" or
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# input.y:4.2: #error "4" or
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# input.y:4:2: error: #error "4"
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# =>
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# input.y:4: #error "4"
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#
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# It may also issue more context information:
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#
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# input.y: In function 'yyparse':
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# input.y:8: #error "8"
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# =>
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# input.y:4: #error "8"
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#
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# The message may include a caret-error (indented by GCC 4.8,
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# not by clang 3.2):
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#
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# input.y:1:2: error: #error "1"
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# #error "1"
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# ^
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#
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# Possibly distcc adds its bits.
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#
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# distcc[33187] ERROR: compile (null) on localhost failed
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# syncline.c:1:2: error: #error "1"
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# distcc[33185] ERROR: compile syncline.c on localhost failed
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#
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# or even
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#
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# distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
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# distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
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#
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# The compiler might end by the number of messages issued (Clang 3.2):
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#
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# syncline.c:1:2: error: "1"
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# #error "1"
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# ^
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# 1 error generated.
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#
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# When c++ is used to compiler C, we might have more messages (Clang 3.2):
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#
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# clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
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AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
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# 1. Remove useless lines.
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# distcc clutter.
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s/^distcc\[\d+\] .*\n//gm;
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# c vs. c++.
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s/^clang: warning: treating 'c' input as 'c\+\+'.*\n//gm;
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# Function context.
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s/^[^:]*: In function '[^']+':\n//gm;
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# Caret error.
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s/^ *#error.*\n *\^\n//gm;
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# Number of errors.
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s/^1 error generated\.\n//gm;
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# 2. Normalize the lines we kept.
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# Remove column.
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s/^([^:]+:\d+)[.:][^:]+:(.+)$/$][1:$][2/gm;
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# Map all combinations of "error: " and "#error: " to "#error ".
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s/^([^:]+:\d+):( |#error|error|:)+/$][1: #error /gm;
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EOF
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]],
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0, [stdout])
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])
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# AT_TEST(TITLE, INPUT, ERROR-MSG)
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# --------------------------------
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# Check that compiling the parser produced from INPUT cause GCC
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# to issue ERROR-MSG.
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m4_pushdef([AT_TEST],
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[AT_SETUP([$1])
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AT_BISON_OPTION_PUSHDEFS
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# It seems impossible to find a generic scheme to check the location
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# of an error. Even requiring GCC is not sufficient, since for instance
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# the version modified by Apple:
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#
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# | Reading specs from /usr/libexec/gcc/darwin/ppc/2.95.2/specs
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# | Apple Computer, Inc. version gcc-934.3, based on gcc version 2.95.2
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# | 19991024 (release) configure:2124: $? = 0
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#
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# instead of:
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#
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# | input.y:2: #error "2"
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#
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# it reports:
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#
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# | input.y:2: "2"
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# | cpp-precomp: warning: errors during smart preprocessing, retrying in basic mode
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AT_DATA([syncline.c],
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[[#error "1"
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int i; /* avoids -pedantic warning about an empty translation unit. */
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]])
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AT_SYNCLINES_COMPILE([syncline.c])
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AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
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AT_DATA([[input.y]], [$2])
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AT_BISON_CHECK([-o input.c input.y])
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AT_SYNCLINES_COMPILE([input.c])
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AT_CHECK([cat stdout], 0, [$3])
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AT_BISON_OPTION_POPDEFS
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AT_CLEANUP
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])
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## ------------------- ##
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## Prologue syncline. ##
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## ------------------- ##
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AT_TEST([Prologue syncline],
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[[%{
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#error "2"
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]AT_YYERROR_DECLARE_EXTERN[
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]AT_YYLEX_DECLARE_EXTERN[
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%}
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%%
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exp: '0';
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%%
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]],
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[input.y:2: #error "2"
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])
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## ----------------- ##
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## %union syncline. ##
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## ----------------- ##
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AT_TEST([%union syncline],
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[[%union {
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#error "2"
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char dummy;
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}
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%{
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]AT_YYERROR_DECLARE_EXTERN[
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]AT_YYLEX_DECLARE_EXTERN[
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%}
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%%
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exp: '0';
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%%
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]],
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[input.y:2: #error "2"
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])
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## ----------------------- ##
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## Postprologue syncline. ##
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## ----------------------- ##
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AT_TEST([Postprologue syncline],
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[[%{
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]AT_YYERROR_DECLARE_EXTERN[
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]AT_YYLEX_DECLARE_EXTERN[
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%}
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%union
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{
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int ival;
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}
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%{
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#error "10"
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%}
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%%
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exp: '0';
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%%
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]],
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[input.y:10: #error "10"
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])
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## ----------------- ##
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## Action syncline. ##
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## ----------------- ##
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AT_TEST([Action syncline],
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[[%{
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]AT_YYERROR_DECLARE_EXTERN[
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]AT_YYLEX_DECLARE_EXTERN[
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%}
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%%
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exp:
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{
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#error "8"
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};
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]],
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[input.y:8: #error "8"
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])
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## ------------------- ##
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## Epilogue syncline. ##
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## ------------------- ##
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AT_TEST([Epilogue syncline],
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[[%{
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]AT_YYERROR_DECLARE_EXTERN[
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]AT_YYLEX_DECLARE_EXTERN[
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%}
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%%
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exp: '0';
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%%
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#error "8"
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]],
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[input.y:8: #error "8"
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])
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## -------------------- ##
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## %code top syncline. ##
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## -------------------- ##
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AT_TEST([%code top syncline],
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[[%code top {
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#error "2"
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}
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%{
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]AT_YYERROR_DECLARE_EXTERN[
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]AT_YYLEX_DECLARE_EXTERN[
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%}
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%%
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exp: '0';
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%%
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]],
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[input.y:2: #error "2"
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])
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m4_popdef([AT_TEST])
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## ----------- ##
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## %no-lines. ##
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## ----------- ##
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m4_pushdef([AT_TEST],
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[AT_SETUP([%no-lines])
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AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
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AT_DATA_GRAMMAR([input.y],
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[%skeleton "$1" %defines
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%{
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]AT_YYERROR_DECLARE_EXTERN[
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]AT_YYLEX_DECLARE_EXTERN[
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%}
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%%
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exp: '0'
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])
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AT_BISON_CHECK([--no-lines -o input.AT_SKEL_CC_IF([cc], [c]) -d input.y])
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AT_CHECK([[grep '#line' ]AT_SKEL_CC_IF([*.cc *.hh], [*.c *.h])], 1)
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AT_BISON_OPTION_POPDEFS
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AT_CLEANUP
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])
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AT_TEST([yacc.c])
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AT_TEST([glr.c])
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AT_TEST([lalr1.cc])
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AT_TEST([glr.cc])
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m4_popdef([AT_TEST])
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