X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/051ade839108d3f78d5b1a611463d1f5244fa864..408476bca98e78ea0c398f36ef58f4466edb277a:/tests/input.at diff --git a/tests/input.at b/tests/input.at index 4cd6e155..da52f71c 100644 --- a/tests/input.at +++ b/tests/input.at @@ -1,20 +1,19 @@ -# 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 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 . AT_BANNER([[Input Processing.]]) @@ -25,58 +24,358 @@ AT_BANNER([[Input Processing.]]) ## Invalid $n. ## ## ------------ ## -AT_SETUP([Invalid $n]) +AT_SETUP([Invalid $n and @n]) AT_DATA([input.y], [[%% exp: { $$ = $1 ; }; +exp: { @$ = @1 ; }; ]]) AT_CHECK([bison input.y], [1], [], [[input.y:2.13-14: integer out of range: `$1' +input.y:3.13-14: integer out of range: `@1' ]]) AT_CLEANUP -## ------------ ## -## Invalid @n. ## -## ------------ ## +## -------------- ## +## Type Clashes. ## +## -------------- ## -AT_SETUP([Invalid @n]) +AT_SETUP([Type Clashes]) AT_DATA([input.y], -[[%% -exp: { @$ = @1 ; }; +[[%union { int bar; } +%token foo +%type exp +%% +exp: foo { $$; } foo { $2; } foo + | foo + | /* Empty. */ + ; ]]) AT_CHECK([bison input.y], [1], [], -[[input.y:2.13-14: integer out of range: `@1' +[[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type +input.y:5.24-25: $2 of `exp' has no declared type +input.y:5.6-32: warning: type clash on default action: != <> +input.y:6.6-8: warning: type clash on default action: != <> +input.y:7.5: warning: empty rule for typed nonterminal, and no action ]]) AT_CLEANUP -## -------------- ## -## Type Clashes. ## -## -------------- ## +# _AT_UNUSED_VALUES_DECLARATIONS() +# -------------------------------------------- +# Generate the token, type, and destructor +# declarations for the unused values tests. + +m4_define([_AT_UNUSED_VALUES_DECLARATIONS], +[[[%token INT; +%type a b c d e f g h i j k l; +%destructor { destroy ($$); } 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 { $2 } INT { $4 }; +d: INT | INT { } INT { $]1[ } INT { $2 }; +e: INT | INT { } INT { } INT { $]1[ }; +f: INT | INT { } INT { } INT { $]$[ = $]1[ + $]3[ + $]5[; }; +g: INT | INT { $$; } INT { $$; } INT { }; +h: INT | INT { $$; } INT { $$ = $2; } INT { }; +i: INT | INT INT { } { $]$[ = $]1[ + $]2[; }; +j: INT | INT INT { $$ = 1; } { $]$[ = $]1[ + $]2[; }; +k: INT | INT INT { $$; } { $$ = $3; } { }; +l: INT | INT { $$ = $1; } INT { $$ = $2 + $3; } INT { $$ = $4 + $5; };]]m4_ifval($1, [ +_AT_UNUSED_VALUES_DECLARATIONS]) +) + +AT_CHECK([bison]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 ($$); } <>; +]]) + +AT_CHECK([bison input.y], [1], [], +[[input.y:1.13-29: redeclaration for default tagged %destructor +input.y:1.13-29: previous declaration +input.y:2.10-26: redeclaration for default tagged %printer +input.y:2.10-26: previous declaration +input.y:4.13-29: redeclaration for default tagged %destructor +input.y:1.13-29: previous declaration +input.y:5.10-26: redeclaration for default tagged %printer +input.y:2.10-26: previous declaration +input.y:7.13-29: redeclaration for default tagless %destructor +input.y:7.13-29: previous declaration +input.y:8.10-26: redeclaration for default tagless %printer +input.y:8.10-26: previous declaration +input.y:10.13-29: redeclaration for default tagless %destructor +input.y:7.13-29: previous declaration +input.y:11.10-26: redeclaration for default tagless %printer +input.y:8.10-26: previous declaration +input.y:17.13-29: redeclaration for default tagged %destructor +input.y:4.13-29: previous declaration +input.y:18.10-26: redeclaration for default tagged %printer +input.y:5.10-26: previous declaration +input.y:20.13-29: redeclaration for default tagless %destructor +input.y:10.13-29: previous declaration +input.y:21.10-26: redeclaration for default tagless %printer +input.y:11.10-26: previous declaration +]]) + +AT_CLEANUP + + +## ---------------------------------------------- ## +## Per-type %printer and %destructor redeclared. ## +## ---------------------------------------------- ## + +AT_SETUP([Per-type %printer and %destructor redeclared]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } +%printer { destroy ($$); } + +%destructor { destroy ($$); } +%printer { destroy ($$); } + +%% + +start: ; + +%destructor { destroy ($$); } ; +%printer { destroy ($$); } ; +]]) + +AT_CHECK([bison input.y], [1], [], +[[input.y:4.13-29: %destructor redeclaration for +input.y:1.13-29: previous declaration +input.y:4.13-29: %destructor redeclaration for +input.y:4.13-29: previous declaration +input.y:5.10-26: %printer redeclaration for +input.y:2.10-26: previous declaration +input.y:5.10-26: %printer redeclaration for +input.y:5.10-26: previous declaration +input.y:11.13-29: %destructor redeclaration for +input.y:4.13-29: previous declaration +input.y:11.13-29: %destructor redeclaration for +input.y:1.13-29: previous declaration +input.y:12.10-26: %printer redeclaration for +input.y:2.10-26: previous declaration +input.y:12.10-26: %printer redeclaration for +input.y:5.10-26: previous declaration +]]) + +AT_CLEANUP -AT_SETUP([Type Clashes]) + +## ---------------------------------------- ## +## Unused values with default %destructor. ## +## ---------------------------------------- ## + +AT_SETUP([Unused values with default %destructor]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } <> +%type tagged + +%% + +start: end end tagged tagged { $1; $3; } ; +end: { } ; +tagged: { } ; +]]) + +AT_CHECK([bison 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 ($$); } <*> +%type tagged + +%% + +start: end end tagged tagged { $1; $3; } ; +end: { } ; +tagged: { } ; +]]) + +AT_CHECK([bison input.y], [0], [], +[[input.y:6.8-45: warning: unused value: $4 +input.y:8.9-11: warning: unset value: $$ +]]) + +AT_CLEANUP + + +## ----------------------------------------- ## +## Unused values with per-type %destructor. ## +## ----------------------------------------- ## + +AT_SETUP([Unused values with per-type %destructor]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } +%type start end + +%% + +start: end end { $1; } ; +end: { } ; +]]) + +AT_CHECK([bison input.y], [0], [], +[[input.y:6.8-22: warning: unset value: $$ +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 exp +[[%token foo "foo" + +%type foo +%printer {bar} foo +%destructor {bar} foo +%left foo + +%type "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: != <> -input.y:5.6-8: warning: type clash on default action: != <> -input.y:6.5: warning: empty rule for typed nonterminal, and no action +AT_CHECK([bison 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 @@ -92,6 +391,21 @@ AT_CLEANUP AT_SETUP([Torturing the Scanner]) + +AT_DATA([input.y], []) +AT_CHECK([bison input.y], [1], [], +[[input.y:1.1: syntax error, unexpected end of file +]]) + + +AT_DATA([input.y], +[{} +]) +AT_CHECK([bison 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. */ @@ -127,6 +441,7 @@ char apostrophe = '\''; #endif #include +#include %} /* %{ and %} can be here too. */ @@ -160,11 +475,11 @@ static int yylex (void); %type '@<:@' /* 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"; @@ -174,6 +489,7 @@ exp: '@<:@' '\1' two '$' '@' '{' oline output 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. */ @@ -189,11 +505,14 @@ value_as_yystype (value val) 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 @@ -227,3 +546,397 @@ AT_PARSER_CHECK([./input], 0, ]]) 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 MY_TOKEN "MY TOKEN" +%type exp +%% +exp: "MY TOKEN"; +%% +]]) + +AT_CHECK([bison -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_CHECK([bison -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_CHECK([bison -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 'a +; +%type "a +; +// Used to report a syntax error because it didn't see braced code. +%destructor { free ($$) +]]) + +AT_CHECK([bison -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_CHECK([bison -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_CHECK([bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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_CHECK([[bison 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 "]$1[" +%% +start: ; +]]) + +AT_CHECK([[bison input.y]], [1], [], +[m4_foreach([b4_arg], m4_dquote(m4_shift($@)), +[[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