# errors.
m4_define([AT_SYNCLINES_COMPILE],
[AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
+
+# Transform stderr into something like this:
+#
+# input.y:4: #error "4"
+#
# In case GCC displays column information, strip it down.
#
# input.y:4:2: #error "4" or
# =>
# input.y:4: #error "8"
#
+# The message may include a caret-error (indented by GCC 4.8,
+# not by clang 3.2):
#
-# And possibly distcc adds its bits.
+# input.y:1:2: error: #error "1"
+# #error "1"
+# ^
+#
+# Possibly distcc adds its bits.
#
# distcc[33187] ERROR: compile (null) on localhost failed
# syncline.c:1:2: error: #error "1"
#
# distcc[35882] (dcc_connect_by_name) ERROR: failed to look up host "chrisimac": Unknown host
# distcc[35882] Warning: failed to distribute input.c to chrisimac/4, running locally instead
+#
+# The compiler might end by the number of messages issued (Clang 3.2):
+#
+# syncline.c:1:2: error: "1"
+# #error "1"
+# ^
+# 1 error generated.
+#
+# When c++ is used to compiler C, we might have more messages (Clang 3.2):
+#
+# clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
+
+AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
+ # 1. Remove useless lines.
-AT_CHECK([[sed -e '/^distcc\[[0-9]*\] /d' \
- -e 's/^\([^:]*:[^:.]*\)[.:][^:]*:\(.*\)$/\1:\2/' \
- -e 's/^\([^:]*:[^:]*:\)[^@%:@]*\( @%:@error\)/\1\2/' \
- -e "/^[^:]*: In function '[^\']*':$/d" \
- stderr]],
- 0, [stdout])
+ # 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.
+ s/^ *#error.*\n *\^\n//gm;
+ # Number of errors.
+ s/^1 error generated\.\n//gm;
+
+ # 2. Normalize the lines we kept.
+
+ # 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_TEST_SYNCLINE(TITLE, INPUT, ERROR-MSG)
-# -----------------------------------------
+# AT_TEST(TITLE, INPUT, ERROR-MSG)
+# --------------------------------
# Check that compiling the parser produced from INPUT cause GCC
# to issue ERROR-MSG.
-m4_define([AT_TEST_SYNCLINE],
+m4_pushdef([AT_TEST],
[AT_SETUP([$1])
-
+AT_BISON_OPTION_PUSHDEFS
# 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:
AT_DATA([syncline.c],
[[#error "1"
-int i; // avoids -pedantic warning about an empty translation unit
+int i; /* avoids -pedantic warning about an empty translation unit. */
]])
AT_SYNCLINES_COMPILE([syncline.c])
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 synch line. ##
-## --------------------- ##
+## ------------------- ##
+## Prologue syncline. ##
+## ------------------- ##
-AT_TEST_SYNCLINE([Prologue synch line],
+AT_TEST([Prologue syncline],
[[%{
#error "2"
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
%}
%%
exp: '0';
+%%
]],
[input.y:2: #error "2"
])
-## ------------------- ##
-## %union synch line. ##
-## ------------------- ##
+## ----------------- ##
+## %union syncline. ##
+## ----------------- ##
-AT_TEST_SYNCLINE([%union synch line],
+AT_TEST([%union syncline],
[[%union {
#error "2"
char dummy;
}
%{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
%}
%%
exp: '0';
+%%
]],
[input.y:2: #error "2"
])
-## ------------------------- ##
-## Postprologue synch line. ##
-## ------------------------- ##
+## ----------------------- ##
+## Postprologue syncline. ##
+## ----------------------- ##
-AT_TEST_SYNCLINE([Postprologue synch line],
+AT_TEST([Postprologue syncline],
[[%{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
%}
%union
{
%}
%%
exp: '0';
+%%
]],
[input.y:10: #error "10"
])
-## ------------------- ##
-## Action synch line. ##
-## ------------------- ##
+## ----------------- ##
+## Action syncline. ##
+## ----------------- ##
-AT_TEST_SYNCLINE([Action synch line],
+AT_TEST([Action syncline],
[[%{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
%}
%%
exp:
])
-## --------------------- ##
-## Epilogue synch line. ##
-## --------------------- ##
+## ------------------- ##
+## Epilogue syncline. ##
+## ------------------- ##
-AT_TEST_SYNCLINE([Epilogue synch line],
+AT_TEST([Epilogue syncline],
[[%{
-void yyerror (const char *s);
-int yylex (void);
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
%}
%%
exp: '0';
]],
[input.y:8: #error "8"
])
+
+## -------------------- ##
+## %code top syncline. ##
+## -------------------- ##
+
+AT_TEST([%code top syncline],
+[[%code top {
+#error "2"
+}
+%{
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
+%}
+%%
+exp: '0';
+%%
+]],
+[input.y:2: #error "2"
+])
+
+m4_popdef([AT_TEST])
+
+## ----------- ##
+## %no-lines. ##
+## ----------- ##
+
+m4_pushdef([AT_TEST],
+[AT_SETUP([%no-lines])
+
+AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
+AT_DATA_GRAMMAR([input.y],
+[%skeleton "$1" %defines
+%{
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
+%}
+%%
+exp: '0'
+])
+AT_BISON_CHECK([--no-lines -o input.AT_SKEL_CC_IF([cc], [c]) -d input.y])
+AT_CHECK([[grep '#line' ]AT_SKEL_CC_IF([*.cc *.hh], [*.c *.h])], 1)
+AT_BISON_OPTION_POPDEFS
+
+AT_CLEANUP
+])
+
+AT_TEST([yacc.c])
+AT_TEST([glr.c])
+AT_TEST([lalr1.cc])
+AT_TEST([glr.cc])
+
+m4_popdef([AT_TEST])
projects / bison.git / blobdiff