# Checking the Bison scanner. -*- Autotest -*-
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-# Free Software Foundation, Inc.
+
+# Copyright (C) 2002-2012 Free Software Foundation, Inc.
# 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
]])
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'
+[[input.y:2.13-14: integer out of range: '$1'
+input.y:3.13-14: integer out of range: '@1'
]])
AT_CLEANUP
]])
AT_BISON_CHECK([input.y], [1], [],
-[[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type
-input.y:5.24-25: $2 of `exp' has no declared type
-input.y:5.6-32: warning: type clash on default action: <bar> != <>
-input.y:6.6-8: warning: type clash on default action: <bar> != <>
-input.y:7.5: warning: empty rule for typed nonterminal, and no action
+[[input.y:5.12-13: $$ 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> != <> [-Wother]
+input.y:6.6-8: warning: type clash on default action: <bar> != <> [-Wother]
+input.y:7.5: warning: empty rule for typed nonterminal, and no action [-Wother]
]])
AT_CLEANUP
# _AT_UNUSED_VALUES_DECLARATIONS()
-# --------------------------------------------
+# --------------------------------
# Generate the token, type, and destructor
# declarations for the unused values tests.
-
m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
[[[%token <integer> INT;
%type <integer> 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.
-
+# ----------------------------------------------------------------
+# 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_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:13.14-20: warning: unset value: $$
-input.y:13.26-41: warning: unset value: $$
-]]])[[input.y:13.10-62: warning: unset value: $]$[
-input.y:13.10-62: warning: unused value: $]3[
-input.y:13.10-62: warning: unused value: $]5[
-]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$
-]]])[[input.y:14.10-49: warning: unset value: $]$[
-input.y:14.10-49: warning: unused value: $]3[
-input.y:14.10-49: warning: unused value: $]5[
-input.y:15.10-37: warning: unset value: $]$[
-input.y:15.10-37: warning: unused value: $]3[
-input.y:15.10-37: warning: unused value: $]5[
-input.y:17.10-58: warning: unset value: $]$[
-input.y:17.10-58: warning: unused value: $]1[
-]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[
-]]])[[input.y:17.10-58: warning: unused value: $]3[
-]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[
-]]])[[input.y:17.10-58: warning: unused value: $]5[
-input.y:18.10-72: warning: unset value: $]$[
-input.y:18.10-72: warning: unused value: $]1[
-input.y:18.10-72: warning: unused value: $]3[
-]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[
-]]])[[input.y:18.10-72: warning: unused value: $]5[
-]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[
-]]])[[input.y:21.10-68: warning: unset value: $]$[
-input.y:21.10-68: warning: unused value: $]1[
-input.y:21.10-68: warning: unused value: $]2[
-]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[
+[[input.y:11.10-32: warning: unset value: $]$[ [-Wother]
+input.y:11.10-32: warning: unused value: $]1[ [-Wother]
+input.y:11.10-32: warning: unused value: $]3[ [-Wother]
+input.y:11.10-32: warning: unused value: $]5[ [-Wother]
+input.y:12.9: warning: empty rule for typed nonterminal, and no action [-Wother]
+]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $$ [-Wmidrule-values]
+input.y:13.26-41: warning: unset value: $$ [-Wmidrule-values]
+]]])[[input.y:13.10-62: warning: unset value: $]$[ [-Wother]
+input.y:13.10-62: warning: unused value: $]3[ [-Wother]
+input.y:13.10-62: warning: unused value: $]5[ [-Wother]
+]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$ [-Wmidrule-values]
+]]])[[input.y:14.10-49: warning: unset value: $]$[ [-Wother]
+input.y:14.10-49: warning: unused value: $]3[ [-Wother]
+input.y:14.10-49: warning: unused value: $]5[ [-Wother]
+input.y:15.10-37: warning: unset value: $]$[ [-Wother]
+input.y:15.10-37: warning: unused value: $]3[ [-Wother]
+input.y:15.10-37: warning: unused value: $]5[ [-Wother]
+input.y:17.10-58: warning: unset value: $]$[ [-Wother]
+input.y:17.10-58: warning: unused value: $]1[ [-Wother]
+]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[ [-Wmidrule-values]
+]]])[[input.y:17.10-58: warning: unused value: $]3[ [-Wother]
+]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[ [-Wmidrule-values]
+]]])[[input.y:17.10-58: warning: unused value: $]5[ [-Wother]
+input.y:18.10-72: warning: unset value: $]$[ [-Wother]
+input.y:18.10-72: warning: unused value: $]1[ [-Wother]
+input.y:18.10-72: warning: unused value: $]3[ [-Wother]
+]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[ [-Wmidrule-values]
+]]])[[input.y:18.10-72: warning: unused value: $]5[ [-Wother]
+]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[ [-Wmidrule-values]
+]]])[[input.y:21.10-68: warning: unset value: $]$[ [-Wother]
+input.y:21.10-68: warning: unused value: $]1[ [-Wother]
+input.y:21.10-68: warning: unused value: $]2[ [-Wother]
+]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[ [-Wmidrule-values]
]]]))])
AT_DATA([[input.y]],
[[%destructor { destroy ($$); } <*> <*>
-%printer { destroy ($$); } <*> <*>
+%printer { print ($$); } <*> <*>
%destructor { destroy ($$); } <*>
-%printer { destroy ($$); } <*>
+%printer { print ($$); } <*>
%destructor { destroy ($$); } <> <>
-%printer { destroy ($$); } <> <>
+%printer { print ($$); } <> <>
%destructor { destroy ($$); } <>
-%printer { destroy ($$); } <>
+%printer { print ($$); } <>
%%
start: ;
%destructor { destroy ($$); } <*>;
-%printer { destroy ($$); } <*>;
+%printer { print ($$); } <*>;
%destructor { destroy ($$); } <>;
-%printer { destroy ($$); } <>;
+%printer { print ($$); } <>;
]])
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:2.10-24: redeclaration for default tagged %printer
+input.y:2.10-24: 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:5.10-24: redeclaration for default tagged %printer
+input.y:2.10-24: 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:8.10-24: redeclaration for default tagless %printer
+input.y:8.10-24: 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:11.10-24: redeclaration for default tagless %printer
+input.y:8.10-24: 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:18.10-24: redeclaration for default tagged %printer
+input.y:5.10-24: 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
+input.y:21.10-24: redeclaration for default tagless %printer
+input.y:11.10-24: previous declaration
]])
AT_CLEANUP
AT_DATA([[input.y]],
[[%destructor { destroy ($$); } <field1> <field2>
-%printer { destroy ($$); } <field1> <field2>
+%printer { print ($$); } <field1> <field2>
%destructor { destroy ($$); } <field1> <field1>
-%printer { destroy ($$); } <field2> <field2>
+%printer { print ($$); } <field2> <field2>
%%
start: ;
%destructor { destroy ($$); } <field2> <field1>;
-%printer { destroy ($$); } <field2> <field1>;
+%printer { print ($$); } <field2> <field1>;
]])
AT_BISON_CHECK([input.y], [1], [],
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:5.10-24: %printer redeclaration for <field2>
+input.y:2.10-24: previous declaration
+input.y:5.10-24: %printer redeclaration for <field2>
+input.y:5.10-24: 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
+input.y:12.10-24: %printer redeclaration for <field1>
+input.y:2.10-24: previous declaration
+input.y:12.10-24: %printer redeclaration for <field2>
+input.y:5.10-24: previous declaration
+]])
+
+AT_CLEANUP
+
+## ----------------------------------------------------- ##
+## Undeclared symbols used for a printer or destructor. ##
+## ----------------------------------------------------- ##
+
+AT_SETUP([Undeclared symbols used for a printer or destructor])
+
+AT_DATA([[input.y]],
+[[%printer {} foo baz
+%destructor {} bar
+
+%%
+exp: bar;
+]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:2.16-18: symbol bar is used, but is not defined as a token and has no rules
+input.y:1.17-19: warning: symbol baz is used, but is not defined as a token and has no rules [-Wother]
+input.y:1.13-15: warning: symbol foo is used, but is not defined as a token and has no rules [-Wother]
]])
AT_CLEANUP
+## ----------------------------------------------------- ##
+## Unassociated types used for a printer or destructor. ##
+## ----------------------------------------------------- ##
+
+AT_SETUP([Unassociated types used for a printer or destructor])
+
+AT_DATA([[input.y]],
+[[%token <type1> tag1
+%type <type2> tag2
+
+%printer { } <type1> <type3>
+%destructor { } <type2> <type4>
+
+%%
+
+exp: tag1 { $1; }
+ | tag2 { $1; }
+
+tag2: "a" { $$; }
+]])
+
+AT_BISON_CHECK([input.y], [0], [],
+[[input.y:4.22-28: warning: type <type3> is used, but is not associated to any symbol [-Wother]
+input.y:5.25-31: warning: type <type4> is used, but is not associated to any symbol [-Wother]
+]])
+
+AT_CLEANUP
+
+
+## --------------------------------- ##
+## Useless printers or destructors. ##
+## --------------------------------- ##
+
+AT_SETUP([Useless printers or destructors])
+
+AT_DATA([[input.y]],
+[[%token <type1> token1
+%token <type2> token2
+%token <type3> token3
+%token <type4> token4
+%token <type5> token51 token52
+%token <type6> token61 token62
+%token <type7> token7
+
+%printer {} token1
+%destructor {} token2
+%printer {} token51
+%destructor {} token61
+
+%printer {} token7
+
+%printer {} <type1>
+%destructor {} <type2>
+%printer {} <type3>
+%destructor {} <type4>
+
+%printer {} <type5>
+%destructor {} <type6>
+
+%destructor {} <type7>
+
+%%
+exp: "a";
+]])
+
+AT_BISON_CHECK([input.y], [0], [],
+[[input.y:16.13-19: warning: useless %printer for type <type1> [-Wother]
+input.y:17.16-22: warning: useless %destructor for type <type2> [-Wother]
+]])
+
+
+AT_CLEANUP
+
+
## ---------------------------------------- ##
## Unused values with default %destructor. ##
## ---------------------------------------- ##
]])
AT_BISON_CHECK([input.y], [0], [],
-[[input.y:6.8-45: warning: unset value: $$
-input.y:6.8-45: warning: unused value: $2
-input.y:7.6-8: warning: unset value: $$
+[[input.y:6.8-45: warning: unset value: $$ [-Wother]
+input.y:6.8-45: warning: unused value: $2 [-Wother]
+input.y:7.6-8: warning: unset value: $$ [-Wother]
]])
AT_DATA([[input.y]],
]])
AT_BISON_CHECK([input.y], [0], [],
-[[input.y:6.8-45: warning: unused value: $4
-input.y:8.9-11: warning: unset value: $$
+[[input.y:6.8-45: warning: unused value: $4 [-Wother]
+input.y:8.9-11: warning: unset value: $$ [-Wother]
]])
AT_CLEANUP
]])
AT_BISON_CHECK([input.y], [0], [],
-[[input.y:6.8-22: warning: unset value: $$
-input.y:6.8-22: warning: unused value: $2
-input.y:7.6-8: warning: unset value: $$
+[[input.y:6.8-22: warning: unset value: $$ [-Wother]
+input.y:6.8-22: warning: unused value: $2 [-Wother]
+input.y:7.6-8: warning: unset value: $$ [-Wother]
]])
AT_CLEANUP
AT_SETUP([Torturing the Scanner])
-
+AT_BISON_OPTION_PUSHDEFS
AT_DATA([input.y], [])
AT_BISON_CHECK([input.y], [1], [],
[[input.y:1.1: syntax error, unexpected end of file
#include <stdio.h>
#include <stdlib.h>
+#include <assert.h>
%}
/* %{ and %} can be here too. */
%}
%{
-static void yyerror (const char *s);
-static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[
%}
%type <ival> '@<:@'
res.ival = val;
return res;
}
-
+]AT_YYERROR_DEFINE[
static int
yylex (void)
{
#output "; /* "
*/
static size_t toknum;
- if (! (toknum < sizeof input))
- abort ();
+ assert (toknum < sizeof input);
yylval = value_as_yystype (input[toknum]);
return input[toknum++];
}
-
-static void
-yyerror (const char *msg)
-{
- fprintf (stderr, "%s\n", msg);
-}
]])
# Pacify Emacs'font-lock-mode: "
return yyparse ();
}
]])
+AT_BISON_OPTION_POPDEFS
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.o])
+AT_COMPILE([main.o])
AT_COMPILE([input], [input.o main.o])
AT_PARSER_CHECK([./input], 0,
[[[@<:@],
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.
+# 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"
AT_SETUP([Symbols])
+AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([input.y],
[[%token WITH-DASH
%token WITHOUT_DASH "WITHOUT-DASH"
%token WITH.PERIOD
%token WITHOUT_PERIOD "WITHOUT.PERIOD"
%code {
- void yyerror (char const *);
- int yylex (void);
+ ]AT_YYERROR_DECLARE[
+ ]AT_YYLEX_DECLARE[
}
%%
start: with-dash without_dash with.period without_period;
with.period: WITH.PERIOD;
without_period: "WITHOUT.PERIOD";
%%
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE[
]])
+AT_BISON_OPTION_POPDEFS
# POSIX Yacc accept periods, but not dashes.
AT_BISON_CHECK([--yacc input.y], [1], [],
-[[input.y:9.8-16: POSIX Yacc forbids dashes in symbol names: WITH-DASH
-input.y:18.8-16: POSIX Yacc forbids dashes in symbol names: with-dash
+[[input.y:9.8-16: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
+input.y:18.8-16: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]
]])
# So warn about them.
AT_BISON_CHECK([-Wyacc input.y], [], [],
-[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH
-input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash
+[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
+input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]
]])
# Dashes are fine for GNU Bison.
AT_BISON_CHECK([-o input.c input.y])
# Make sure we don't export silly token identifiers with periods or dashes.
-AT_COMPILE([input.o], [-c input.c])
+AT_COMPILE([input.o])
-# Periods and dashes are genuine letters, they can start identifiers.
-# Digits cannot.
+# Periods are genuine letters, they can start identifiers.
+# Digits and dashes cannot.
AT_DATA_GRAMMAR([input.y],
[[%token .GOOD
-GOOD
1NV4L1D
+ -123
%%
-start: .GOOD -GOOD
+start: .GOOD GOOD
]])
AT_BISON_CHECK([-o input.c input.y], [1], [],
-[[input.y:11.10-16: invalid identifier: `1NV4L1D'
+[[input.y:10.10: invalid character: '-'
+input.y:11.10-16: invalid identifier: '1NV4L1D'
+input.y:12.10: invalid character: '-'
]])
AT_CLEANUP
AT_SETUP([Numbered tokens])
-AT_DATA_GRAMMAR([1.y],
-[[%token DECIMAL 11259375
- HEXADECIMAL 0xabcdef
-%%
-start: DECIMAL;
-]])
-
-AT_BISON_CHECK([1.y], [1], [],
-[[1.y:10.10-20: user token number 11259375 redeclaration for HEXADECIMAL
-1.y:9.8-14: previous declaration for DECIMAL
-]])
-
-
-AT_DATA_GRAMMAR([2.y],
-[[%token HEXADECIMAL 0xabcdef
- DECIMAL 11259375
+AT_DATA_GRAMMAR([redecl.y],
+[[%token DECIMAL_1 11259375
+ HEXADECIMAL_1 0xabcdef
+ HEXADECIMAL_2 0xFEDCBA
+ DECIMAL_2 16702650
%%
-start: HEXADECIMAL;
+start: DECIMAL_1 HEXADECIMAL_2;
]])
-AT_BISON_CHECK([2.y], [1], [],
-[[2.y:10.10-16: user token number 11259375 redeclaration for DECIMAL
-2.y:9.8-18: previous declaration for HEXADECIMAL
+AT_BISON_CHECK([redecl.y], [1], [],
+[[redecl.y:10.10-22: user token number 11259375 redeclaration for HEXADECIMAL_1
+redecl.y:9.8-16: previous declaration for DECIMAL_1
+redecl.y:12.10-18: user token number 16702650 redeclaration for DECIMAL_2
+redecl.y:11.10-22: previous declaration for HEXADECIMAL_2
]])
-
-AT_DATA_GRAMMAR([3.y],
+AT_DATA_GRAMMAR([too-large.y],
[[%token TOO_LARGE_DEC 999999999999999999999
TOO_LARGE_HEX 0xFFFFFFFFFFFFFFFFFFF
%%
%%
]])
-AT_BISON_CHECK([3.y], [1], [],
-[[3.y:9.22-42: integer out of range: `999999999999999999999'
-3.y:10.24-44: integer out of range: `0xFFFFFFFFFFFFFFFFFFF'
+AT_BISON_CHECK([too-large.y], [1], [],
+[[too-large.y:9.22-42: integer out of range: '999999999999999999999'
+too-large.y:10.24-44: integer out of range: '0xFFFFFFFFFFFFFFFFFFF'
]])
AT_CLEANUP
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.
+# 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
]])
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: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_SETUP([%start after first rule])
-# Bison once complained that a %start after the first rule was a redeclaration
-# of the start symbol.
+# Bison once complained that a %start after the first rule was a
+# redeclaration of the start symbol.
AT_DATA([input.y],
[[%%
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 [-Wother]
+]])
+
+AT_CLEANUP
+
+
## -------------------------------- ##
## Reject unused %code qualifiers. ##
## -------------------------------- ##
%%
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_BISON_CHECK([[input-c.y]], [[1]], [],
+[[input-c.y:1.7: %code qualifier 'q' is not used
+input-c.y:2.7-9: %code qualifier 'bad' is not used
+input-c.y:3.7-9: %code qualifier 'bad' is not used
+input-c.y:4.7-12: %code qualifier 'format' is not used
]])
AT_DATA([input-c-glr.y],
%%
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_BISON_CHECK([[input-c-glr.y]], [[1]], [],
+[[input-c-glr.y:1.7: %code qualifier 'q' is not used
+input-c-glr.y:2.7-9: %code qualifier 'bad' is not used
+input-c-glr.y:3.8-10: %code qualifier 'bad' is not used
]])
AT_DATA([input-c++.y],
%%
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_BISON_CHECK([[input-c++.y]], [[1]], [],
+[[input-c++.y:1.7: %code qualifier 'q' is not used
+input-c++.y:2.7-9: %code qualifier 'bad' is not used
+input-c++.y:3.8: %code qualifier 'q' is not used
]])
AT_DATA([input-c++-glr.y],
%%
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_BISON_CHECK([[input-c++-glr.y]], [[1]], [],
+[[input-c++-glr.y:1.7-9: %code qualifier 'bad' is not used
+input-c++-glr.y:2.7: %code qualifier 'q' is not used
+input-c++-glr.y:3.7: %code qualifier 'q' is not used
]])
AT_DATA([special-char-@@.y],
%%
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_BISON_CHECK([[special-char-@@.y]], [[1]], [],
+[[special-char-@@.y:1.7-9: %code qualifier 'bad' is not used
+special-char-@@.y:2.7: %code qualifier 'q' is not used
+special-char-@@.y:3.7: %code qualifier 'q' is not used
]])
AT_DATA([special-char-@:>@.y],
%%
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_BISON_CHECK([[special-char-@:>@.y]], [[1]], [],
+[[special-char-@:>@.y:1.7-9: %code qualifier 'bad' is not used
+special-char-@:>@.y:2.7: %code qualifier 'q' is not used
+special-char-@:>@.y:3.7: %code qualifier 'q' is not used
]])
AT_CLEANUP
]])
AT_BISON_CHECK([[input-redefined.y]], [[1]], [],
-[[input-redefined.y:2.9-11: %define variable `var' redefined
+[[input-redefined.y:2.9-11: %define variable 'var' redefined
input-redefined.y:1.9-11: previous definition
-input-redefined.y:3.10-12: %define variable `var' redefined
+input-redefined.y:3.10-12: %define variable 'var' redefined
input-redefined.y:2.9-11: previous definition
]])
start: ;
]])
-AT_BISON_CHECK([[input-unused.y]], [[0]], [],
-[[input-unused.y:1.9-11: warning: %define variable `var' is not used
+AT_BISON_CHECK([[input-unused.y]], [[1]], [],
+[[input-unused.y:1.9-11: %define variable 'var' is not used
]])
AT_CLEANUP
## %define, --define, --force-define. ##
## ----------------------------------- ##
-AT_SETUP([%define, --define, --force-define])
+AT_SETUP([[%define, --define, --force-define]])
-AT_DATA([skel.c],
+AT_DATA([[skel.c]],
[[m4@&t@_divert_push(0)@
@output(b4_parser_file_name@)@
[var-dd: ]b4_percent_define_get([[var-dd]])[
var-fd: ]b4_percent_define_get([[var-fd]])
m4@&t@_divert_pop(0)
]])
-
-AT_DATA([input.y],
+AT_DATA([[input.y]],
[[%define var-dfg "gram"
%%
start: ;
]])
-
AT_BISON_CHECK([[-Dvar-dd=cmd-d1 -Dvar-dd=cmd-d2 \
-Fvar-ff=cmd-f1 -Fvar-ff=cmd-f2 \
-Dvar-dfg=cmd-d -Fvar-dfg=cmd-f \
-Fvar-fd=cmd-f -Dvar-fd=cmd-d \
- -Dunused-d -Funused-f \
- --skeleton ./skel.c input.y]], [[0]], [],
-[[<command line>:10: warning: %define variable `unused-d' is not used
-<command line>:11: warning: %define variable `unused-f' is not used
-]])
-
+ --skeleton ./skel.c input.y]])
AT_CHECK([[cat input.tab.c]], [[0]],
[[var-dd: cmd-d2
var-ff: cmd-f2
var-fd: cmd-d
]])
-AT_DATA([input-dg.y],
+AT_DATA([[input-dg.y]],
[[%define var "gram"
%%
start: ;
]])
-
AT_BISON_CHECK([[-Dvar=cmd-d input-dg.y]], [[1]], [],
-[[input-dg.y:1.9-11: %define variable `var' redefined
+[[input-dg.y:1.9-11: %define variable 'var' redefined
<command line>:2: previous definition
]])
+AT_DATA([[input-unused.y]],
+[[%%
+start: ;
+]])
+AT_BISON_CHECK([[-Dunused-d -Funused-f input-unused.y]], [[1]], [],
+[[<command line>:2: %define variable 'unused-d' is not used
+<command line>:3: %define variable 'unused-f' is not used
+]])
+
AT_CLEANUP
## --------------------------- ##
]])
AT_BISON_CHECK([[Input.y]], [1], [],
-[[Input.y:2.9-14: invalid value for %define Boolean variable `public'
+[[Input.y:2.9-14: invalid value for %define Boolean variable 'public'
]])
AT_CLEANUP
# Front-end.
AT_DATA([[input.y]],
-[[%define lr.default-reductions "bogus"
+[[%define lr.default-reductions bogus
%%
start: ;
]])
AT_BISON_CHECK([[input.y]], [[1]], [[]],
-[[input.y:1.9-29: invalid value for %define variable `lr.default-reductions': `bogus'
-input.y:1.9-29: accepted value: `all'
-input.y:1.9-29: accepted value: `consistent'
-input.y:1.9-29: accepted value: `accepting'
+[[input.y:1.9-29: invalid value for %define variable 'lr.default-reductions': 'bogus'
+input.y:1.9-29: accepted value: 'most'
+input.y:1.9-29: accepted value: 'consistent'
+input.y:1.9-29: accepted value: 'accepting'
]])
# Back-end.
AT_DATA([[input.y]],
-[[%define api.push-pull "neither"
+[[%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'
-input.y:1.9-21: accepted value: `pull'
-input.y:1.9-21: accepted value: `push'
-input.y:1.9-21: accepted value: `both'
+[[input.y:1.9-21: invalid value for %define variable 'api.push-pull': 'neither'
+input.y:1.9-21: accepted value: 'pull'
+input.y:1.9-21: accepted value: 'push'
+input.y:1.9-21: accepted value: 'both'
]])
AT_CLEANUP
start: ;
]])
AT_BISON_CHECK([[input.y]], [1], [],
-[[input.y:1.9-21: invalid value for %define variable `api.push-pull': `neither'
-input.y:1.9-21: accepted value: `pull'
-input.y:1.9-21: accepted value: `push'
-input.y:1.9-21: accepted value: `both'
+[[input.y:1.9-21: invalid value for %define variable 'api.push-pull': 'neither'
+input.y:1.9-21: accepted value: 'pull'
+input.y:1.9-21: accepted value: 'push'
+input.y:1.9-21: accepted value: 'both'
]])
AT_DATA([[input.y]],
-[[%define lr.keep_unreachable_states "maybe"
+[[%define lr.keep_unreachable_states maybe
%%
start: ;
]])
AT_BISON_CHECK([[input.y]], [1], [],
-[[input.y:1.9-34: invalid value for %define Boolean variable `lr.keep-unreachable-states'
+[[input.y:1.9-34: invalid value for %define Boolean variable 'lr.keep-unreachable-states'
+]])
+
+AT_DATA([[input.y]],
+[[%define namespace "foo"
+%define api.namespace "foo"
+%%
+start: ;
+]])
+AT_BISON_CHECK([[input.y]], [1], [],
+[[input.y:2.9-21: %define variable 'api.namespace' redefined
+input.y:1.9-17: previous definition
]])
AT_DATA([[input.y]],
%%
start: ;
]])
-AT_BISON_CHECK([[input.y]], [0], [],
-[[input.y:1.9-15: warning: %define variable `foo_bar' is not used
+AT_BISON_CHECK([[input.y]], [[1]], [],
+[[input.y:1.9-15: %define variable 'foo_bar' is not used
]])
AT_CLEANUP
start: ;
]])
-AT_BISON_CHECK([[input.y]], [0], [],
-[[input.y:1.9-16: warning: %define variable `api.pure' is not used
+AT_BISON_CHECK([[input.y]], [[1]], [],
+[[input.y:1.9-16: %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]], [[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_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
AT_DATA([[input.y]],
[[%language "C++"
%defines
-%define namespace "]$1["
+%define api.namespace "]$1["
%%
start: ;
]])
AT_BISON_CHECK([[input.y]], [1], [],
[m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
-[[input.y:3.9-17: ]b4_arg[
+[[input.y:3.9-21: ]b4_arg[
]])])
])
# Bison used to accept character literals that were empty or contained
# too many characters.
-# FIXME: $ECHO_N and $ECHO_C are not very portable according to the
-# Autoconf manual. Switch to AS_ECHO_N when Autoconf 2.64 is released?
-# Even better, AT_DATA or some variant of AT_DATA may eventually permit
-# a trailing newline. See the threads starting at
+# FIXME: AT_DATA or some variant of AT_DATA may eventually permit
+# the final newline to be omitted. See the threads starting at
# <http://lists.gnu.org/archive/html/bison-patches/2009-07/msg00019.html>.
AT_SETUP([[Bad character literals]])
start: '';
start: '
]])
-echo $ECHO_N "start: '$ECHO_C" >> empty.y
+AT_CHECK([[perl -e "print 'start: \'';" >> empty.y || exit 77]])
AT_BISON_CHECK([empty.y], [1], [],
-[[empty.y:2.8-9: warning: empty character literal
-empty.y:3.8-4.0: warning: empty character literal
-empty.y:3.8-4.0: missing `'' at end of line
-empty.y:4.8: warning: empty character literal
-empty.y:4.8: missing `'' at end of file
+[[empty.y:2.8-9: warning: empty character literal [-Wother]
+empty.y:3.8-4.0: warning: empty character literal [-Wother]
+empty.y:3.8-4.0: missing "'" at end of line
+empty.y:4.8: warning: empty character literal [-Wother]
+empty.y:4.8: missing "'" at end of file
]])
AT_DATA([two.y],
start: 'ab';
start: 'ab
]])
-echo $ECHO_N "start: 'ab$ECHO_C" >> two.y
+AT_CHECK([[perl -e "print 'start: \'ab';" >> two.y || exit 77]])
AT_BISON_CHECK([two.y], [1], [],
-[[two.y:2.8-11: warning: extra characters in character literal
-two.y:3.8-4.0: warning: extra characters in character literal
-two.y:3.8-4.0: missing `'' at end of line
-two.y:4.8-10: warning: extra characters in character literal
-two.y:4.8-10: missing `'' at end of file
+[[two.y:2.8-11: warning: extra characters in character literal [-Wother]
+two.y:3.8-4.0: warning: extra characters in character literal [-Wother]
+two.y:3.8-4.0: missing "'" at end of line
+two.y:4.8-10: warning: extra characters in character literal [-Wother]
+two.y:4.8-10: missing "'" at end of file
]])
AT_DATA([three.y],
start: 'abc';
start: 'abc
]])
-echo $ECHO_N "start: 'abc$ECHO_C" >> three.y
+AT_CHECK([[perl -e "print 'start: \'abc';" >> three.y || exit 77]])
AT_BISON_CHECK([three.y], [1], [],
-[[three.y:2.8-12: warning: extra characters in character literal
-three.y:3.8-4.0: warning: extra characters in character literal
-three.y:3.8-4.0: missing `'' at end of line
-three.y:4.8-11: warning: extra characters in character literal
-three.y:4.8-11: missing `'' at end of file
+[[three.y:2.8-12: warning: extra characters in character literal [-Wother]
+three.y:3.8-4.0: warning: extra characters in character literal [-Wother]
+three.y:3.8-4.0: missing "'" at end of line
+three.y:4.8-11: warning: extra characters in character literal [-Wother]
+three.y:4.8-11: missing "'" at end of file
+]])
+
+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:2.8-13: warning: empty character literal [-Wother]
+input.y:2.16-17: invalid number after \-escape: 0
+input.y:2.15-18: warning: empty character literal [-Wother]
+input.y:2.21-25: invalid number after \-escape: xfff
+input.y:2.20-26: warning: empty character literal [-Wother]
+input.y:2.29-31: invalid number after \-escape: x0
+input.y:2.28-32: warning: empty character literal [-Wother]
+input.y:3.9-14: invalid number after \-escape: uffff
+input.y:3.8-15: warning: empty character literal [-Wother]
+input.y:3.18-23: invalid number after \-escape: u0000
+input.y:3.17-24: warning: empty character literal [-Wother]
+input.y:3.27-36: invalid number after \-escape: Uffffffff
+input.y:3.26-37: warning: empty character literal [-Wother]
+input.y:3.40-49: invalid number after \-escape: U00000000
+input.y:3.39-50: warning: empty character literal [-Wother]
+input.y:4.9-10: invalid character after \-escape: ' '
+input.y:4.8-11: warning: empty character literal [-Wother]
+input.y:4.14-15: invalid character after \-escape: A
+input.y:4.13-16: warning: empty character literal [-Wother]
+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
+
+## ------------------------- ##
+## LAC: Errors for %define. ##
+## ------------------------- ##
+
+AT_SETUP([[LAC: Errors for %define]])
+
+AT_DATA([[input.y]],
+[[%%
+start: ;
+]])
+
+# parse.lac.* options are useless if LAC isn't actually activated.
+AT_BISON_CHECK([[-Dparse.lac.es-capacity-initial=1 input.y]],
+ [[1]], [],
+[[<command line>:2: %define variable 'parse.lac.es-capacity-initial' is not used
+]])
+AT_BISON_CHECK([[-Dparse.lac.memory-trace=full input.y]],
+ [[1]], [],
+[[<command line>:2: %define variable 'parse.lac.memory-trace' is not used
+]])
+
+AT_CLEANUP
+
+## --------------------------------------------- ##
+## -Werror is not affected by -Wnone and -Wall. ##
+## --------------------------------------------- ##
+
+AT_SETUP([[-Werror is not affected by -Wnone and -Wall]])
+
+AT_DATA([[input.y]],
+[[%%
+foo-bar: ;
+]])
+
+# -Werror is not enabled by -Wall or equivalent.
+AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]],
+[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
+]])
+AT_BISON_CHECK([[-W input.y]], [[0]], [[]],
+[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
+]])
+AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]],
+[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
+]])
+
+# -Werror is not disabled by -Wnone or equivalent.
+AT_BISON_CHECK([[-Werror,none,yacc input.y]], [[1]], [[]], [[stderr]])
+AT_CHECK([[sed 's/^.*bison:/bison:/' stderr]], [[0]],
+[[bison: warnings being treated as errors
+input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]
]])
+[mv stderr experr]
+AT_BISON_CHECK([[-Werror,no-all,yacc input.y]], [[1]], [[]], [[experr]])
AT_CLEANUP
projects / bison.git / blobdiff