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tests: be more robust to unrecognized synclines, and try to recognize xlc

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Reported by Thomas Jahns.
http://lists.gnu.org/archive/html/bug-bison/2015-01/msg00059.html

* tests/synclines.at (AT_SYNCLINES_COMPILE): Rename as...
(_AT_SYNCLINES_COMPILE): this.
Try to recognize xlc locations.
(AT_SYNCLINES_COMPILE): New.  Skips the test if we can't read the
synclines.
This commit is contained in:
Akim Demaille
2015-01-19 18:51:54 +01:00
parent eaa476a7e9
commit 0b0370ff42
1 changed files with 35 additions and 12 deletions
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47
tests/synclines.at
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@@ -19,13 +19,13 @@
AT_BANNER([[User Actions.]])
# AT_SYNCLINES_COMPILE(FILE)
# --------------------------
# _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],
m4_define([_AT_SYNCLINES_COMPILE],
[AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
# Transform stderr into something like this:
@@ -75,6 +75,12 @@ m4_define([AT_SYNCLINES_COMPILE],
# When c++ is used to compiler C, we might have more messages (Clang 3.2):
#
# clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
#
#
# xlc reports things like:
#
# "input.yy", line 80.21: 1540-0218 (S) The call does not match any parameter list for "operator<<".
# "/usr/vacpp/include/iosfwd", line 32.6: 1506-205 (S) #error This file to be used only with IBM VisualAge C++ v4 and later compilers
AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
# 1. Remove useless lines.
@@ -92,6 +98,8 @@ AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
# 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 ".
@@ -101,13 +109,14 @@ EOF
0, [stdout])
])
# 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_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:
@@ -124,15 +133,29 @@ AT_BISON_OPTION_PUSHDEFS
#
# | 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],
[[#error "1"
int i; /* avoids -pedantic warning about an empty translation unit. */
]])
AT_SYNCLINES_COMPILE([syncline.c])
_AT_SYNCLINES_COMPILE([syncline.c])
AT_CHECK([[test "`cat stdout`" = 'syncline.c:1: @%:@error "1"' || exit 77]])
# 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])