X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/519d000408fc583144fb9c7a18d3718cefaf0de7..4654b0c0a8a355e7a8fcdf51b1a5eb6c485126f1:/tests/input.at?ds=sidebyside

diff --git a/tests/input.at b/tests/input.at
index adc38d72..bb036c38 100644
--- a/tests/input.at
+++ b/tests/input.at
@@ -1,20 +1,19 @@
 # Checking the Bison scanner.                    -*- Autotest -*-
-# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation,
+# Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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 2, or (at your option)
-# any later version.
-
+# 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, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 AT_BANNER([[Input Processing.]])
 
@@ -25,7 +24,7 @@ AT_BANNER([[Input Processing.]])
 ## Invalid $n.  ##
 ## ------------ ##
 
-AT_SETUP([Invalid \$n and @n])
+AT_SETUP([Invalid $n and @n])
 
 AT_DATA([input.y],
 [[%%
@@ -33,7 +32,7 @@ exp: { $$ = $1 ; };
 exp: { @$ = @1 ; };
 ]])
 
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:2.13-14: integer out of range: `$1'
 input.y:3.13-14: integer out of range: `@1'
 ]])
@@ -58,7 +57,7 @@ exp: foo { $$; } foo { $2; } foo
    ;
 ]])
 
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type
 input.y:5.24-25: $2 of `exp' has no declared type
 input.y:5.6-32: warning: type clash on default action: <bar> != <>
@@ -80,13 +79,15 @@ m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
 %destructor { destroy ($$); } INT a b c d e f g h i j k l;]]])
 
 
-# AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER)
-# --------------------------------------------
+# AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES)
+# ------------------------------------------------------------------
 # Generate a grammar to test unused values,
 # compile it, run it.  If DECLARATIONS_AFTER
 # is set, then the token, type, and destructor
 # declarations are generated after the rules
-# rather than before.
+# rather than before.  If CHECK_MIDRULE_VALUES
+# is set, then --warnings=midrule-values is
+# set.
 
 m4_define([AT_CHECK_UNUSED_VALUES],
 [AT_DATA([input.y],
@@ -116,19 +117,19 @@ l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<
 _AT_UNUSED_VALUES_DECLARATIONS])
 )
 
-AT_CHECK([bison input.y], [0], [],
+AT_BISON_CHECK(m4_ifval($2, [ --warnings=midrule-values ])[ input.y], [0], [],
 [[input.y:11.10-32: warning: unset value: $]$[
 input.y:11.10-32: warning: unused value: $]1[
 input.y:11.10-32: warning: unused value: $]3[
 input.y:11.10-32: warning: unused value: $]5[
 input.y:12.9: warning: empty rule for typed nonterminal, and no action
-input.y:13.14-19: warning: unset value: $$
+]]m4_ifval($2, [[[input.y:13.14-19: warning: unset value: $$
 input.y:13.25-39: warning: unset value: $$
-input.y:13.10-59: warning: unset value: $]$[
+]]])[[input.y:13.10-59: warning: unset value: $]$[
 input.y:13.10-59: warning: unused value: $]3[
 input.y:13.10-59: warning: unused value: $]5[
-input.y:14.14-16: warning: unset value: $$
-input.y:14.10-47: warning: unset value: $]$[
+]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$
+]]])[[input.y:14.10-47: warning: unset value: $]$[
 input.y:14.10-47: warning: unused value: $]3[
 input.y:14.10-47: warning: unused value: $]5[
 input.y:15.10-36: warning: unset value: $]$[
@@ -136,21 +137,21 @@ input.y:15.10-36: warning: unused value: $]3[
 input.y:15.10-36: warning: unused value: $]5[
 input.y:17.10-58: warning: unset value: $]$[
 input.y:17.10-58: warning: unused value: $]1[
-input.y:17.10-58: warning: unused value: $]2[
-input.y:17.10-58: warning: unused value: $]3[
-input.y:17.10-58: warning: unused value: $]4[
-input.y:17.10-58: warning: unused value: $]5[
+]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[
+]]])[[input.y:17.10-58: warning: unused value: $]3[
+]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[
+]]])[[input.y:17.10-58: warning: unused value: $]5[
 input.y:18.10-72: warning: unset value: $]$[
 input.y:18.10-72: warning: unused value: $]1[
 input.y:18.10-72: warning: unused value: $]3[
-input.y:18.10-72: warning: unused value: $]4[
-input.y:18.10-72: warning: unused value: $]5[
-input.y:20.10-55: warning: unused value: $]3[
-input.y:21.10-68: warning: unset value: $]$[
+]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[
+]]])[[input.y:18.10-72: warning: unused value: $]5[
+]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[
+]]])[[input.y:21.10-68: warning: unset value: $]$[
 input.y:21.10-68: warning: unused value: $]1[
 input.y:21.10-68: warning: unused value: $]2[
-input.y:21.10-68: warning: unused value: $]4[
-]])])
+]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[
+]]]))])
 
 
 ## --------------- ##
@@ -159,6 +160,7 @@ input.y:21.10-68: warning: unused value: $]4[
 
 AT_SETUP([Unused values])
 AT_CHECK_UNUSED_VALUES
+AT_CHECK_UNUSED_VALUES(, [1])
 AT_CLEANUP
 
 
@@ -168,6 +170,7 @@ AT_CLEANUP
 
 AT_SETUP([Unused values before symbol declarations])
 AT_CHECK_UNUSED_VALUES([1])
+AT_CHECK_UNUSED_VALUES([1], [1])
 AT_CLEANUP
 
 
@@ -178,33 +181,54 @@ AT_CLEANUP
 AT_SETUP([Default %printer and %destructor redeclared])
 
 AT_DATA([[input.y]],
-[[%destructor { destroy ($$); } %symbol-default %symbol-default
-%printer { destroy ($$); } %symbol-default %symbol-default
+[[%destructor { destroy ($$); } <*> <*>
+%printer { destroy ($$); } <*> <*>
+
+%destructor { destroy ($$); } <*>
+%printer { destroy ($$); } <*>
 
-%destructor { destroy ($$); } %symbol-default
-%printer { destroy ($$); } %symbol-default
+%destructor { destroy ($$); } <> <>
+%printer { destroy ($$); } <> <>
+
+%destructor { destroy ($$); } <>
+%printer { destroy ($$); } <>
 
 %%
 
 start: ;
 
-%destructor { destroy ($$); } %symbol-default;
-%printer { destroy ($$); } %symbol-default;
+%destructor { destroy ($$); } <*>;
+%printer { destroy ($$); } <*>;
+
+%destructor { destroy ($$); } <>;
+%printer { destroy ($$); } <>;
 ]])
 
-AT_CHECK([bison input.y], [1], [],
-[[input.y:1.13-29: redeclaration for default %destructor
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:1.13-29: redeclaration for default tagged %destructor
 input.y:1.13-29: previous declaration
-input.y:2.10-26: redeclaration for default %printer
+input.y:2.10-26: redeclaration for default tagged %printer
 input.y:2.10-26: previous declaration
-input.y:4.13-29: redeclaration for default %destructor
+input.y:4.13-29: redeclaration for default tagged %destructor
 input.y:1.13-29: previous declaration
-input.y:5.10-26: redeclaration for default %printer
+input.y:5.10-26: redeclaration for default tagged %printer
 input.y:2.10-26: previous declaration
-input.y:11.13-29: redeclaration for default %destructor
+input.y:7.13-29: redeclaration for default tagless %destructor
+input.y:7.13-29: previous declaration
+input.y:8.10-26: redeclaration for default tagless %printer
+input.y:8.10-26: previous declaration
+input.y:10.13-29: redeclaration for default tagless %destructor
+input.y:7.13-29: previous declaration
+input.y:11.10-26: redeclaration for default tagless %printer
+input.y:8.10-26: previous declaration
+input.y:17.13-29: redeclaration for default tagged %destructor
 input.y:4.13-29: previous declaration
-input.y:12.10-26: redeclaration for default %printer
+input.y:18.10-26: redeclaration for default tagged %printer
 input.y:5.10-26: previous declaration
+input.y:20.13-29: redeclaration for default tagless %destructor
+input.y:10.13-29: previous declaration
+input.y:21.10-26: redeclaration for default tagless %printer
+input.y:11.10-26: previous declaration
 ]])
 
 AT_CLEANUP
@@ -231,7 +255,7 @@ start: ;
 %printer { destroy ($$); } <field2> <field1>;
 ]])
 
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:4.13-29: %destructor redeclaration for <field1>
 input.y:1.13-29: previous declaration
 input.y:4.13-29: %destructor redeclaration for <field1>
@@ -260,18 +284,36 @@ AT_CLEANUP
 AT_SETUP([Unused values with default %destructor])
 
 AT_DATA([[input.y]],
-[[%destructor { destroy ($$); } %symbol-default
+[[%destructor { destroy ($$); } <>
+%type <tag> tagged
 
 %%
 
-start: end end { $1; } ;
-end: { }  ;
+start: end end tagged tagged { $<tag>1; $3; } ;
+end: { } ;
+tagged: { } ;
+]])
+
+AT_BISON_CHECK([input.y], [0], [],
+[[input.y:6.8-45: warning: unset value: $$
+input.y:6.8-45: warning: unused value: $2
+input.y:7.6-8: warning: unset value: $$
+]])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } <*>
+%type <tag> tagged
+
+%%
+
+start: end end tagged tagged { $<tag>1; $3; } ;
+end: { } ;
+tagged: { } ;
 ]])
 
-AT_CHECK([bison input.y], [0], [],
-[[input.y:5.8-22: warning: unset value: $$
-input.y:5.8-22: warning: unused value: $2
-input.y:6.6-8: warning: unset value: $$
+AT_BISON_CHECK([input.y], [0], [],
+[[input.y:6.8-45: warning: unused value: $4
+input.y:8.9-11: warning: unset value: $$
 ]])
 
 AT_CLEANUP
@@ -293,7 +335,7 @@ start: end end { $1; } ;
 end: { }  ;
 ]])
 
-AT_CHECK([bison input.y], [0], [],
+AT_BISON_CHECK([input.y], [0], [],
 [[input.y:6.8-22: warning: unset value: $$
 input.y:6.8-22: warning: unused value: $2
 input.y:7.6-8: warning: unset value: $$
@@ -325,7 +367,7 @@ AT_DATA([input.y],
 exp: foo;
 ]])
 
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:8.7-11: %type redeclaration for foo
 input.y:3.7-11: previous declaration
 input.y:10.13-17: %destructor redeclaration for foo
@@ -351,7 +393,7 @@ AT_SETUP([Torturing the Scanner])
 
 
 AT_DATA([input.y], [])
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:1.1: syntax error, unexpected end of file
 ]])
 
@@ -359,7 +401,7 @@ AT_CHECK([bison input.y], [1], [],
 AT_DATA([input.y],
 [{}
 ])
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:1.1-2: syntax error, unexpected {...}
 ]])
 
@@ -495,7 +537,7 @@ main (void)
 }
 ]])
 
-AT_CHECK([bison -d -v -o input.c input.y])
+AT_BISON_CHECK([-d -v -o input.c input.y])
 AT_COMPILE([input.o], [-c input.c])
 AT_COMPILE([main.o], [-c main.c])
 AT_COMPILE([input], [input.o main.o])
@@ -526,7 +568,7 @@ exp: "MY TOKEN";
 %%
 ]])
 
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
 
 AT_CLEANUP
 
@@ -542,7 +584,7 @@ AT_DATA_GRAMMAR([input.y],
 %%
 empty_file:;
 ]])
-AT_CHECK([bison -o input.c input.y], $2, [], ignore)
+AT_BISON_CHECK([-o input.c input.y], $2, [], ignore)
 AT_CLEANUP
 ])
 
@@ -568,7 +610,7 @@ start: 'a';
 %%
 ]])
 
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
 
 AT_CLEANUP
 
@@ -606,7 +648,7 @@ start: ;
 %destructor { free ($$)
 ]])
 
-AT_CHECK([bison -o input.c input.y], 1, [],
+AT_BISON_CHECK([-o input.c input.y], 1, [],
 [[input.y:1.10-2.0: missing `"' at end of line
 input.y:4.10-5.0: missing `'' at end of line
 input.y:14.11-15.0: missing `'' at end of line
@@ -634,6 +676,293 @@ start: false_start ;
 %start start;
 ]])
 
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
+
+AT_CLEANUP
+
+
+## --------------------- ##
+## %prec takes a token.  ##
+## --------------------- ##
+
+AT_SETUP([%prec takes a token])
+
+# Bison once allowed %prec sym where sym was a nonterminal.
+
+AT_DATA([input.y],
+[[%%
+start: PREC %prec PREC ;
+PREC: ;
+]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:3.1-4: rule given for PREC, which is a token
+]])
+
+AT_CLEANUP
+
+
+## -------------------------------- ##
+## Reject unused %code qualifiers.  ##
+## -------------------------------- ##
+
+AT_SETUP([Reject unused %code qualifiers])
+
+AT_DATA([input-c.y],
+[[%code q {}
+%code bad {}
+%code bad {}
+%code format {}
+%%
+start: ;
+]])
+AT_BISON_CHECK([[input-c.y]], [0], [],
+[[input-c.y:1.7: warning: %code qualifier `q' is not used
+input-c.y:2.7-9: warning: %code qualifier `bad' is not used
+input-c.y:3.7-9: warning: %code qualifier `bad' is not used
+input-c.y:4.7-12: warning: %code qualifier `format' is not used
+]])
+
+AT_DATA([input-c-glr.y],
+[[%code q {}
+%code bad {}
+ %code bad {}
+%%
+start: ;
+]])
+AT_BISON_CHECK([[input-c-glr.y]], [0], [],
+[[input-c-glr.y:1.7: warning: %code qualifier `q' is not used
+input-c-glr.y:2.7-9: warning: %code qualifier `bad' is not used
+input-c-glr.y:3.8-10: warning: %code qualifier `bad' is not used
+]])
+
+AT_DATA([input-c++.y],
+[[%code q {}
+%code bad {}
+ %code q {}
+%%
+start: ;
+]])
+AT_BISON_CHECK([[input-c++.y]], [0], [],
+[[input-c++.y:1.7: warning: %code qualifier `q' is not used
+input-c++.y:2.7-9: warning: %code qualifier `bad' is not used
+input-c++.y:3.8: warning: %code qualifier `q' is not used
+]])
+
+AT_DATA([input-c++-glr.y],
+[[%code bad {}
+%code q {}
+%code q {}
+%%
+start: ;
+]])
+AT_BISON_CHECK([[input-c++-glr.y]], [0], [],
+[[input-c++-glr.y:1.7-9: warning: %code qualifier `bad' is not used
+input-c++-glr.y:2.7: warning: %code qualifier `q' is not used
+input-c++-glr.y:3.7: warning: %code qualifier `q' is not used
+]])
+
+AT_DATA([special-char-@@.y],
+[[%code bad {}
+%code q {}
+%code q {}
+%%
+start: ;
+]])
+AT_BISON_CHECK([[special-char-@@.y]], [0], [],
+[[special-char-@@.y:1.7-9: warning: %code qualifier `bad' is not used
+special-char-@@.y:2.7: warning: %code qualifier `q' is not used
+special-char-@@.y:3.7: warning: %code qualifier `q' is not used
+]])
+
+AT_DATA([special-char-@:>@.y],
+[[%code bad {}
+%code q {}
+%code q {}
+%%
+start: ;
+]])
+AT_BISON_CHECK([[special-char-@:>@.y]], [0], [],
+[[special-char-@:>@.y:1.7-9: warning: %code qualifier `bad' is not used
+special-char-@:>@.y:2.7: warning: %code qualifier `q' is not used
+special-char-@:>@.y:3.7: warning: %code qualifier `q' is not used
+]])
+
+AT_CLEANUP
+
+
+## ---------------- ##
+## %define errors.  ##
+## ---------------- ##
+
+AT_SETUP([%define errors])
+
+AT_DATA([input.y],
+[[%define var "value1"
+%define var "value1"
+ %define var "value2"
+%define special1 "@:>@"
+%define special2 "@<:@"
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y]], [0], [],
+[[input.y:2.9-11: warning: %define variable `var' redefined
+input.y:1.9-11: warning: previous definition
+input.y:3.10-12: warning: %define variable `var' redefined
+input.y:2.9-11: warning: previous definition
+input.y:1.9-11: warning: %define variable `var' is not used
+input.y:2.9-11: warning: %define variable `var' is not used
+input.y:3.10-12: warning: %define variable `var' is not used
+input.y:4.9-16: warning: %define variable `special1' is not used
+input.y:5.9-16: warning: %define variable `special2' is not used
+]])
+
+AT_CLEANUP
+
+
+## ------------------- ##
+## %define, --define.  ##
+## ------------------- ##
+
+AT_SETUP([%define, --define])
+
+AT_DATA([input.y],
+[[%define var "value1"
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y -DFOO -DFOO -Dvar=value]], [0], [],
+[[<command line>:4: warning: %define variable `FOO' redefined
+<command line>:3: warning: previous definition
+input.y:1.9-11: warning: %define variable `var' redefined
+<command line>:5: warning: previous definition
+<command line>:3: warning: %define variable `FOO' is not used
+<command line>:4: warning: %define variable `FOO' is not used
+<command line>:5: warning: %define variable `var' is not used
+input.y:1.9-11: warning: %define variable `var' is not used
+]])
+
+AT_CLEANUP
+
+## --------------------------- ##
+## %define Boolean variables.  ##
+## --------------------------- ##
+
+AT_SETUP([[%define Boolean variables]])
+
+AT_DATA([Input.y],
+[[%language "Java"
+%define public "maybe"
+%define parser_class_name "Input"
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[Input.y]], [1], [],
+[[Input.y:2.9-14: invalid value for %define Boolean variable `public'
+]])
+
+AT_CLEANUP
+
+## ------------------------ ##
+## %define enum variables.  ##
+## ------------------------ ##
+
+AT_SETUP([[%define enum variables]])
+
+AT_DATA([[input.y]],
+[[%define api.push_pull "neither"
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y]], [1], [],
+[[input.y:1.9-21: invalid value for %define variable `api.push_pull': `neither'
+]])
+
+AT_CLEANUP
+
+## ------------------------- ##
+## Unused %define api.pure.  ##
+## ------------------------- ##
+
+AT_SETUP([[Unused %define api.pure]])
+
+# AT_CHECK_API_PURE(DECLS, VALUE)
+# -------------------------------
+# Make sure Bison reports that `%define api.pure VALUE' is unused when DECLS
+# are specified.
+m4_define([AT_CHECK_API_PURE],
+[
+AT_DATA([[input.y]],
+[[%define api.pure ]$2[
+]$1[
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y]], [0], [],
+[[input.y:1.9-16: warning: %define variable `api.pure' is not used
+]])
+])
+
+AT_CHECK_API_PURE([[%language "c++" %defines]], [[]])
+AT_CHECK_API_PURE([[%language "c++" %defines]], [["false"]])
+AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [[""]])
+AT_CHECK_API_PURE([[%language "c++" %defines %glr-parser]], [["false"]])
+AT_CHECK_API_PURE([[%language "java"]], [["true"]])
+AT_CHECK_API_PURE([[%language "java"]], [["false"]])
+
+AT_CLEANUP
+
+## -------------------------------- ##
+## C++ namespace reference errors.  ##
+## -------------------------------- ##
+
+AT_SETUP([[C++ namespace reference errors]])
+
+# AT_CHECK_NAMESPACE_ERROR(NAMESPACE-DECL, ERROR, [ERROR], ...)
+# -------------------------------------------------------------
+# Make sure Bison reports all ERROR's for %define namespace "NAMESPACE-DECL".
+m4_define([AT_CHECK_NAMESPACE_ERROR],
+[
+AT_DATA([[input.y]],
+[[%language "C++"
+%defines
+%define namespace "]$1["
+%%
+start: ;
+]])
+
+AT_BISON_CHECK([[input.y]], [1], [],
+[m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
+[[input.y:3.9-17: ]b4_arg[
+]])])
+])
+
+AT_CHECK_NAMESPACE_ERROR([[]],
+                         [[namespace reference is empty]])
+AT_CHECK_NAMESPACE_ERROR([[ 		  	 	]],
+                         [[namespace reference is empty]])
+AT_CHECK_NAMESPACE_ERROR([[foo::::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo:: 	::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[::::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[:: ::bar]],
+                         [[namespace reference has consecutive "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo::bar::	::]],
+                         [[namespace reference has consecutive "::"]],
+                         [[namespace reference has a trailing "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo::bar::]],
+                         [[namespace reference has a trailing "::"]])
+AT_CHECK_NAMESPACE_ERROR([[foo::bar:: 	]],
+                         [[namespace reference has a trailing "::"]])
+AT_CHECK_NAMESPACE_ERROR([[::]],
+                         [[namespace reference has a trailing "::"]])
 
 AT_CLEANUP