-# Checking the output filenames. -*- Autotest -*-
-# Copyright (C) 2002 Free Software Foundation, Inc.
+# Checking the Bison scanner. -*- Autotest -*-
+# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009 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., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
AT_BANNER([[Input Processing.]])
## Invalid $n. ##
## ------------ ##
-AT_SETUP([Invalid $n])
+AT_SETUP([Invalid $n and @n])
AT_DATA([input.y],
[[%%
exp: { $$ = $1 ; };
+exp: { @$ = @1 ; };
]])
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
[[input.y:2.13-14: integer out of range: `$1'
+input.y:3.13-14: integer out of range: `@1'
]])
AT_CLEANUP
-## ------------ ##
-## Invalid @n. ##
-## ------------ ##
+## -------------- ##
+## Type Clashes. ##
+## -------------- ##
-AT_SETUP([Invalid @n])
+AT_SETUP([Type Clashes])
AT_DATA([input.y],
-[[%%
-exp: { @$ = @1 ; };
+[[%union { int bar; }
+%token foo
+%type <bar> exp
+%%
+exp: foo { $$; } foo { $2; } foo
+ | foo
+ | /* Empty. */
+ ;
]])
-AT_CHECK([bison input.y], [1], [],
-[[input.y:2.13-14: integer out of range: `@1'
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type
+input.y:5.24-25: $2 of `exp' has no declared type
+input.y:5.6-32: warning: type clash on default action: <bar> != <>
+input.y:6.6-8: warning: type clash on default action: <bar> != <>
+input.y:7.5: warning: empty rule for typed nonterminal, and no action
]])
AT_CLEANUP
-## -------------- ##
-## Type Clashes. ##
-## -------------- ##
+# _AT_UNUSED_VALUES_DECLARATIONS()
+# --------------------------------------------
+# Generate the token, type, and destructor
+# declarations for the unused values tests.
-AT_SETUP([Type Clashes])
+m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
+[[[%token <integer> INT;
+%type <integer> a b c d e f g h i j k l;
+%destructor { destroy ($$); } INT a b c d e f g h i j k l;]]])
+
+
+# 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. If CHECK_MIDRULE_VALUES
+# is set, then --warnings=midrule-values is
+# set.
+
+m4_define([AT_CHECK_UNUSED_VALUES],
+[AT_DATA([input.y],
+m4_ifval($1, [
+
+
+], [_AT_UNUSED_VALUES_DECLARATIONS
+])[[%%
+start:
+ 'a' a { $]2[ } | 'b' b { $]2[ } | 'c' c { $]2[ } | 'd' d { $]2[ } | 'e' e { $]2[ }
+| 'f' f { $]2[ } | 'g' g { $]2[ } | 'h' h { $]2[ } | 'i' i { $]2[ } | 'j' j { $]2[ }
+| 'k' k { $]2[ } | 'l' l { $]2[ }
+;
+
+a: INT | INT { } INT { } INT { };
+b: INT | /* empty */;
+c: INT | INT { $]1[ } INT { $<integer>2 } INT { $<integer>4 };
+d: INT | INT { } INT { $]1[ } INT { $<integer>2 };
+e: INT | INT { } INT { } INT { $]1[ };
+f: INT | INT { } INT { } INT { $]$[ = $]1[ + $]3[ + $]5[; };
+g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
+h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
+i: INT | INT INT { } { $]$[ = $]1[ + $]2[; };
+j: INT | INT INT { $<integer>$ = 1; } { $]$[ = $]1[ + $]2[; };
+k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
+l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<integer>3; } INT { $<integer>$ = $<integer>4 + $<integer>5; };]]m4_ifval($1, [
+_AT_UNUSED_VALUES_DECLARATIONS])
+)
+
+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
+]]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: unused value: $]3[
+input.y:13.10-59: warning: unused value: $]5[
+]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$
+]]])[[input.y:14.10-47: warning: unset value: $]$[
+input.y:14.10-47: warning: unused value: $]3[
+input.y:14.10-47: warning: unused value: $]5[
+input.y:15.10-36: warning: unset value: $]$[
+input.y:15.10-36: warning: unused value: $]3[
+input.y:15.10-36: warning: unused value: $]5[
+input.y:17.10-58: warning: unset value: $]$[
+input.y:17.10-58: warning: unused value: $]1[
+]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[
+]]])[[input.y:17.10-58: warning: unused value: $]3[
+]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[
+]]])[[input.y:17.10-58: warning: unused value: $]5[
+input.y:18.10-72: warning: unset value: $]$[
+input.y:18.10-72: warning: unused value: $]1[
+input.y:18.10-72: warning: unused value: $]3[
+]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[
+]]])[[input.y:18.10-72: warning: unused value: $]5[
+]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[
+]]])[[input.y:21.10-68: warning: unset value: $]$[
+input.y:21.10-68: warning: unused value: $]1[
+input.y:21.10-68: warning: unused value: $]2[
+]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[
+]]]))])
+
+
+## --------------- ##
+## Unused values. ##
+## --------------- ##
+
+AT_SETUP([Unused values])
+AT_CHECK_UNUSED_VALUES
+AT_CHECK_UNUSED_VALUES(, [1])
+AT_CLEANUP
+
+
+## ------------------------------------------ ##
+## Unused values before symbol declarations. ##
+## ------------------------------------------ ##
+
+AT_SETUP([Unused values before symbol declarations])
+AT_CHECK_UNUSED_VALUES([1])
+AT_CHECK_UNUSED_VALUES([1], [1])
+AT_CLEANUP
+
+
+## --------------------------------------------- ##
+## Default %printer and %destructor redeclared. ##
+## --------------------------------------------- ##
+
+AT_SETUP([Default %printer and %destructor redeclared])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } <*> <*>
+%printer { destroy ($$); } <*> <*>
+
+%destructor { destroy ($$); } <*>
+%printer { destroy ($$); } <*>
+
+%destructor { destroy ($$); } <> <>
+%printer { destroy ($$); } <> <>
+
+%destructor { destroy ($$); } <>
+%printer { destroy ($$); } <>
+
+%%
+
+start: ;
+
+%destructor { destroy ($$); } <*>;
+%printer { destroy ($$); } <*>;
+
+%destructor { destroy ($$); } <>;
+%printer { destroy ($$); } <>;
+]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:1.13-29: redeclaration for default tagged %destructor
+input.y:1.13-29: previous declaration
+input.y:2.10-26: redeclaration for default tagged %printer
+input.y:2.10-26: previous declaration
+input.y:4.13-29: redeclaration for default tagged %destructor
+input.y:1.13-29: previous declaration
+input.y:5.10-26: redeclaration for default tagged %printer
+input.y:2.10-26: previous declaration
+input.y:7.13-29: redeclaration for default tagless %destructor
+input.y:7.13-29: previous declaration
+input.y:8.10-26: redeclaration for default tagless %printer
+input.y:8.10-26: previous declaration
+input.y:10.13-29: redeclaration for default tagless %destructor
+input.y:7.13-29: previous declaration
+input.y:11.10-26: redeclaration for default tagless %printer
+input.y:8.10-26: previous declaration
+input.y:17.13-29: redeclaration for default tagged %destructor
+input.y:4.13-29: previous declaration
+input.y:18.10-26: redeclaration for default tagged %printer
+input.y:5.10-26: previous declaration
+input.y:20.13-29: redeclaration for default tagless %destructor
+input.y:10.13-29: previous declaration
+input.y:21.10-26: redeclaration for default tagless %printer
+input.y:11.10-26: previous declaration
+]])
+
+AT_CLEANUP
+
+
+## ---------------------------------------------- ##
+## Per-type %printer and %destructor redeclared. ##
+## ---------------------------------------------- ##
+
+AT_SETUP([Per-type %printer and %destructor redeclared])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } <field1> <field2>
+%printer { destroy ($$); } <field1> <field2>
+
+%destructor { destroy ($$); } <field1> <field1>
+%printer { destroy ($$); } <field2> <field2>
+
+%%
+
+start: ;
+
+%destructor { destroy ($$); } <field2> <field1>;
+%printer { destroy ($$); } <field2> <field1>;
+]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:4.13-29: %destructor redeclaration for <field1>
+input.y:1.13-29: previous declaration
+input.y:4.13-29: %destructor redeclaration for <field1>
+input.y:4.13-29: previous declaration
+input.y:5.10-26: %printer redeclaration for <field2>
+input.y:2.10-26: previous declaration
+input.y:5.10-26: %printer redeclaration for <field2>
+input.y:5.10-26: previous declaration
+input.y:11.13-29: %destructor redeclaration for <field1>
+input.y:4.13-29: previous declaration
+input.y:11.13-29: %destructor redeclaration for <field2>
+input.y:1.13-29: previous declaration
+input.y:12.10-26: %printer redeclaration for <field1>
+input.y:2.10-26: previous declaration
+input.y:12.10-26: %printer redeclaration for <field2>
+input.y:5.10-26: previous declaration
+]])
+
+AT_CLEANUP
+
+
+## ---------------------------------------- ##
+## Unused values with default %destructor. ##
+## ---------------------------------------- ##
+
+AT_SETUP([Unused values with default %destructor])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } <>
+%type <tag> tagged
+
+%%
+
+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 ($$); } <*>
+%type <tag> tagged
+
+%%
+
+start: end end tagged tagged { $<tag>1; $3; } ;
+end: { } ;
+tagged: { } ;
+]])
+
+AT_BISON_CHECK([input.y], [0], [],
+[[input.y:6.8-45: warning: unused value: $4
+input.y:8.9-11: warning: unset value: $$
+]])
+
+AT_CLEANUP
+
+
+## ----------------------------------------- ##
+## Unused values with per-type %destructor. ##
+## ----------------------------------------- ##
+
+AT_SETUP([Unused values with per-type %destructor])
+
+AT_DATA([[input.y]],
+[[%destructor { destroy ($$); } <field1>
+%type <field1> start end
+
+%%
+
+start: end end { $1; } ;
+end: { } ;
+]])
+
+AT_BISON_CHECK([input.y], [0], [],
+[[input.y:6.8-22: warning: unset value: $$
+input.y:6.8-22: warning: unused value: $2
+input.y:7.6-8: warning: unset value: $$
+]])
+
+AT_CLEANUP
+
+
+## ---------------------- ##
+## Incompatible Aliases. ##
+## ---------------------- ##
+
+AT_SETUP([Incompatible Aliases])
AT_DATA([input.y],
-[[%token foo
-%type <bar> exp
+[[%token foo "foo"
+
+%type <bar> foo
+%printer {bar} foo
+%destructor {bar} foo
+%left foo
+
+%type <baz> "foo"
+%printer {baz} "foo"
+%destructor {baz} "foo"
+%left "foo"
+
%%
-exp: foo {} foo
- | foo
- | /* Empty. */
- ;
+exp: foo;
]])
-AT_CHECK([bison input.y], [], [],
-[[input.y:4.6-15: warning: type clash on default action: <bar> != <>
-input.y:5.6-8: warning: type clash on default action: <bar> != <>
-input.y:6.5: warning: empty rule for typed nonterminal, and no action
+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
+input.y:5.13-17: previous declaration
+input.y:9.10-14: %printer redeclaration for foo
+input.y:4.10-14: previous declaration
+input.y:11.1-5: %left redeclaration for foo
+input.y:6.1-5: previous declaration
]])
AT_CLEANUP
AT_SETUP([Torturing the Scanner])
+
+AT_DATA([input.y], [])
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:1.1: syntax error, unexpected end of file
+]])
+
+
+AT_DATA([input.y],
+[{}
+])
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:1.1-2: syntax error, unexpected {...}
+]])
+
+
AT_DATA_GRAMMAR([input.y],
[[%{
/* This is seen in GCC: a %{ and %} in middle of a comment. */
#endif
#include <stdio.h>
+#include <stdlib.h>
%}
/* %{ and %} can be here too. */
%type <ival> '@<:@'
/* Exercise quotes in strings. */
-%token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x0\0"
+%token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x1\1"
%%
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 1. */
-exp: '@<:@' '\1' two '$' '@' '{' oline output
+exp: '@<:@' '\1' two '$' '@' '{' oline output.or.oline.opt
{
/* Exercise quotes in braces. */
char tmp[] = "@<:@%c@:>@,\n";
two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
+output.or.oline.opt: ;|oline;;|output;;;
output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
%%
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 2. */
static int
yylex (void)
{
- static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\
+ static char const input[] = "@<:@\1\2$@{@oline@__@&t@oline__\
#output "; /* "
*/
- yylval = value_as_yystype (*input);
- return *input++;
+ static size_t toknum;
+ if (! (toknum < sizeof input))
+ abort ();
+ yylval = value_as_yystype (input[toknum]);
+ return input[toknum++];
}
static 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])
]])
AT_CLEANUP
+
+
+## ---------------------- ##
+## Typed symbol aliases. ##
+## ---------------------- ##
+
+AT_SETUP([Typed symbol aliases])
+
+# Bison 2.0 broke typed symbol aliases - ensure they work.
+
+AT_DATA_GRAMMAR([input.y],
+[[%union
+{
+ int val;
+};
+%token <val> MY_TOKEN "MY TOKEN"
+%type <val> exp
+%%
+exp: "MY TOKEN";
+%%
+]])
+
+AT_BISON_CHECK([-o input.c input.y])
+
+AT_CLEANUP
+
+
+## --------- ##
+## Require. ##
+## --------- ##
+
+m4_define([AT_CHECK_REQUIRE],
+[AT_SETUP([Require $1])
+AT_DATA_GRAMMAR([input.y],
+[[%require "$1";
+%%
+empty_file:;
+]])
+AT_BISON_CHECK([-o input.c input.y], $2, [], ignore)
+AT_CLEANUP
+])
+
+AT_CHECK_REQUIRE(1.0, 0)
+AT_CHECK_REQUIRE(AT_PACKAGE_VERSION, 0)
+## FIXME: Some day augment this version number.
+AT_CHECK_REQUIRE(100.0, 63)
+
+
+## ------------------------------------- ##
+## String aliases for character tokens. ##
+## ------------------------------------- ##
+
+AT_SETUP([String aliases for character tokens])
+
+# Bison once thought a character token and its alias were different symbols
+# with the same user token number.
+
+AT_DATA_GRAMMAR([input.y],
+[[%token 'a' "a"
+%%
+start: 'a';
+%%
+]])
+
+AT_BISON_CHECK([-o input.c input.y])
+
+AT_CLEANUP
+
+
+## --------------------- ##
+## Unclosed constructs. ##
+## --------------------- ##
+
+AT_SETUP([Unclosed constructs])
+
+# Bison's scan-gram.l once forgot to STRING_FINISH some unclosed constructs, so
+# they were prepended to whatever it STRING_GROW'ed next. It also threw them
+# away rather than returning them to the parser. The effect was confusing
+# subsequent error messages.
+
+AT_DATA([input.y],
+[[%token A "a
+%token B "b"
+%token AB "ab" // Used to complain that "ab" was already used.
+%token C '1
+%token TWO "2"
+%token TICK_TWELVE "'12" // Used to complain that "'12" was already used.
+
+%%
+
+start: ;
+
+// Used to report a syntax error because it didn't see any kind of symbol
+// identifier.
+%type <f> 'a
+;
+%type <f> "a
+;
+// Used to report a syntax error because it didn't see braced code.
+%destructor { free ($$)
+]])
+
+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
+input.y:16.11-17.0: missing `"' at end of line
+input.y:19.13-20.0: missing `}' at end of file
+input.y:20.1: syntax error, unexpected end of file
+]])
+
+AT_CLEANUP
+
+
+## ------------------------- ##
+## %start after first rule. ##
+## ------------------------- ##
+
+AT_SETUP([%start after first rule])
+
+# Bison once complained that a %start after the first rule was a redeclaration
+# of the start symbol.
+
+AT_DATA([input.y],
+[[%%
+false_start: ;
+start: false_start ;
+%start start;
+]])
+
+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
+
+
+## ------------------------------- ##
+## %prec's token must be defined. ##
+## ------------------------------- ##
+
+AT_SETUP([[%prec's token must be defined]])
+
+# According to POSIX, a %prec token must be defined separately.
+
+AT_DATA([[input.y]],
+[[%%
+start: %prec PREC ;
+]])
+
+AT_BISON_CHECK([[input.y]], [[0]], [],
+[[input.y:2.8-17: warning: token for %prec is not defined: PREC
+]])
+
+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 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
+
+## ------------------------- ##
+## Bad escapes in literals. ##
+## ------------------------- ##
+
+AT_SETUP([[Bad escapes in literals]])
+
+AT_DATA([input.y],
+[[%%
+start: '\777' '\0' '\xfff' '\x0'
+ '\uffff' '\u0000' '\Uffffffff' '\U00000000'
+ '\ ' '\A';
+]])
+
+# It is not easy to create special characters, we cannot even trust tr.
+# Beside we cannot even expect "echo '\0'" to output two characters
+# (well three with \n): at least Bash 3.2 converts the two-character
+# sequence "\0" into a single NUL character.
+AT_CHECK([[perl -e 'print "start: \"\\\t\\\f\\\0\\\1\" ;";' >> input.y \
+ || exit 77]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:2.9-12: invalid number after \-escape: 777
+input.y:2.16-17: invalid number after \-escape: 0
+input.y:2.21-25: invalid number after \-escape: xfff
+input.y:2.29-31: invalid number after \-escape: x0
+input.y:3.9-14: invalid number after \-escape: uffff
+input.y:3.18-23: invalid number after \-escape: u0000
+input.y:3.27-36: invalid number after \-escape: Uffffffff
+input.y:3.40-49: invalid number after \-escape: U00000000
+input.y:4.9-10: invalid character after \-escape: ` '
+input.y:4.14-15: invalid character after \-escape: A
+input.y:5.9-16: invalid character after \-escape: \t
+input.y:5.17: invalid character after \-escape: \f
+input.y:5.18: invalid character after \-escape: \0
+input.y:5.19: invalid character after \-escape: \001
+]])
+
+AT_CLEANUP
projects / bison.git / blobdiff