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da8f4a2f5f
Make sure that we cannot apply a type to the (main) action of a rule. * src/reader.c (grammar_rule_check): Issue the warning. * tests/input.at (Cannot type action): Check the warning.
2247 lines
60 KiB
Plaintext
2247 lines
60 KiB
Plaintext
# Checking the Bison scanner. -*- Autotest -*-
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# Copyright (C) 2002-2015, 2018 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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AT_BANNER([[Input Processing.]])
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# Mostly test that we are robust to mistakes.
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## ----------------- ##
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## Invalid options. ##
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## ----------------- ##
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AT_SETUP([Invalid options])
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AT_DATA([input.y],
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[[%%
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exp: '0'
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]])
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# We used to accept these, as -f, --report and others were sharing
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# their code with -W.
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AT_BISON_CHECK([-ferror=caret input.y], [1], [], [ignore])
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AT_BISON_CHECK([--report=error=itemsets input.y], [1], [], [ignore])
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# We used to accept any character after "-Werror", instead of ensuring
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# this is "=".
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AT_BISON_CHECK([-Werror?all input.y], [1], [], [ignore])
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AT_CLEANUP
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## ---------------- ##
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## Invalid inputs. ##
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## ---------------- ##
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AT_SETUP([Invalid inputs])
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AT_DATA([input.y],
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[[\000\001\002\377?
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%%
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?
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default: 'a' }
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%&
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%a-does-not-exist
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%-
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%{
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]])
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AT_CHECK([[$PERL -pi -e 's/\\(\d{3})/chr(oct($1))/ge' input.y || exit 77]])
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AT_BISON_CHECK([input.y], [1], [],
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[[input.y:1.1-2: error: invalid characters: '\0\001\002\377?'
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input.y:3.1: error: invalid character: '?'
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input.y:4.14: error: invalid character: '}'
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input.y:5.1: error: invalid character: '%'
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input.y:5.2: error: invalid character: '&'
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input.y:6.1-17: error: invalid directive: '%a-does-not-exist'
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input.y:7.1: error: invalid character: '%'
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input.y:7.2: error: invalid character: '-'
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input.y:8.1-9.0: error: missing '%}' at end of file
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input.y:8.1-9.0: error: syntax error, unexpected %{...%}
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]])
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AT_CLEANUP
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AT_SETUP([Invalid inputs with {}])
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# We used to SEGV here. See
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# http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html
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AT_DATA([input.y],
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[[
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%destructor
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%initial-action
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%lex-param
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%parse-param
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%printer
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%union
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]])
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AT_BISON_CHECK([input.y], [1], [],
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[[input.y:3.1-15: error: syntax error, unexpected %initial-action, expecting {...}
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]])
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AT_CLEANUP
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## ------------ ##
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## Invalid $n. ##
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## ------------ ##
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AT_SETUP([Invalid $n and @n])
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AT_DATA([input.y],
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[[%%
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exp: %empty { $$ = $1 ; };
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exp: %empty { @$ = @1 ; };
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]])
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AT_BISON_CHECK([-fcaret input.y], [1], [],
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[[input.y:2.20-21: error: integer out of range: '$1'
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exp: %empty { $$ = $1 ; };
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^^
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input.y:3.20-21: error: integer out of range: '@1'
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exp: %empty { @$ = @1 ; };
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^^
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]])
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AT_CLEANUP
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## -------------- ##
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## Type Clashes. ##
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## -------------- ##
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AT_SETUP([Type Clashes])
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AT_DATA([input.y],
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[[%union { int bar; }
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%token foo
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%type <bar> exp
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%%
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exp: foo { $$; } foo { $2; } foo
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| foo
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| %empty
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;
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]])
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AT_BISON_CHECK([-fcaret input.y], [1], [],
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[[input.y:5.12-13: error: $$ for the midrule at $2 of 'exp' has no declared type
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exp: foo { $$; } foo { $2; } foo
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^^
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input.y:5.24-25: error: $2 of 'exp' has no declared type
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exp: foo { $$; } foo { $2; } foo
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^^
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input.y:5.6-32: warning: type clash on default action: <bar> != <> [-Wother]
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exp: foo { $$; } foo { $2; } foo
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^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:6.6-8: warning: type clash on default action: <bar> != <> [-Wother]
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| foo
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^^^
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input.y:7.6-11: warning: empty rule for typed nonterminal, and no action [-Wother]
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| %empty
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^^^^^^
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]])
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AT_CLEANUP
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# _AT_UNUSED_VALUES_DECLARATIONS()
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# --------------------------------
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# Generate the token, type, and destructor
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# declarations for the unused values tests.
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m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
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[[[%token <integer> INT;
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%type <integer> a b c d e f g h i j k l m n o;
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%destructor { destroy ($$); } <integer>;]]])
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# AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES)
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# ----------------------------------------------------------------
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# Generate a grammar to test unused values, and compile it. If
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# DECLARATIONS_AFTER is set, then the token, type, and destructor
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# declarations are generated after the rules rather than before. If
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# CHECK_MIDRULE_VALUES is set, then --warnings=midrule-values is set.
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m4_define([AT_CHECK_UNUSED_VALUES],
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[AT_DATA([input.y],
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m4_ifval($1, [
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], [_AT_UNUSED_VALUES_DECLARATIONS
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])[[%%
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start:
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'a' a { $][2; } | 'b' b { $][2; } | 'c' c { $][2; } | 'd' d { $][2; }
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| 'e' e { $][2; } | 'f' f { $][2; } | 'g' g { $][2; } | 'h' h { $][2; }
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| 'i' i { $][2; } | 'j' j { $][2; } | 'k' k { $][2; } | 'l' l { $][2; }
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| 'm' m { $][2; } | 'n' n { $][2; } | 'o' o { $][2; }
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;
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a: INT | INT { } INT { } INT { };
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b: INT | %empty;
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c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
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d: INT | INT { } INT { $][1; } INT { $<integer>2; };
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e: INT | INT { } INT { } INT { $][1; };
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f: INT | INT { } INT { } INT { $][$ = $][1 + $][3 + $][5; };
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g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
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h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
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i: INT | INT INT { } { $][$ = $][1 + $][2; };
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j: INT | INT INT { $<integer>$ = 1; } { $][$ = $][1 + $][2; };
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k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
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l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<integer>3; } INT { $<integer>$ = $<integer>4 + $<integer>5; };
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m: INT | INT <integer>{ $][$ = $][1; } INT <integer>{ $][$ = $][2 + $][3; } INT { $][$ = $][4 + $][5; };
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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o: INT | INT <integer>{ } INT <integer>{ } INT { $][$ = $][1 + $][2 + $][3 + $][4 + $][5; };
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]]m4_ifval($1, [
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_AT_UNUSED_VALUES_DECLARATIONS])
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)
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AT_BISON_CHECK(m4_ifval($2, [--warnings=midrule-values ])[-fcaret input.y],
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[0], [],
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[[input.y:12.10-32: warning: unset value: $][$ [-Wother]
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a: INT | INT { } INT { } INT { };
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^^^^^^^^^^^^^^^^^^^^^^^
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input.y:12.10-12: warning: unused value: $][1 [-Wother]
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a: INT | INT { } INT { } INT { };
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^^^
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input.y:12.18-20: warning: unused value: $][3 [-Wother]
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a: INT | INT { } INT { } INT { };
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^^^
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input.y:12.26-28: warning: unused value: $][5 [-Wother]
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a: INT | INT { } INT { } INT { };
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^^^
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input.y:13.10-15: warning: empty rule for typed nonterminal, and no action [-Wother]
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b: INT | %empty;
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^^^^^^
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]]m4_ifval($2, [[[input.y:14.14-20: warning: unset value: $][$ [-Wmidrule-values]
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c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
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^^^^^^^
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input.y:14.26-41: warning: unset value: $][$ [-Wmidrule-values]
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c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
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^^^^^^^^^^^^^^^^
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]]])[[input.y:14.10-62: warning: unset value: $][$ [-Wother]
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c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:14.22-24: warning: unused value: $][3 [-Wother]
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c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
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^^^
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input.y:14.43-45: warning: unused value: $][5 [-Wother]
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c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
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^^^
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]]m4_ifval($2, [[[input.y:15.14-16: warning: unset value: $][$ [-Wmidrule-values]
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d: INT | INT { } INT { $][1; } INT { $<integer>2; };
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^^^
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]]])[[input.y:15.10-49: warning: unset value: $][$ [-Wother]
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d: INT | INT { } INT { $][1; } INT { $<integer>2; };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:15.18-20: warning: unused value: $][3 [-Wother]
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d: INT | INT { } INT { $][1; } INT { $<integer>2; };
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^^^
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input.y:15.30-32: warning: unused value: $][5 [-Wother]
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d: INT | INT { } INT { $][1; } INT { $<integer>2; };
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^^^
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input.y:16.10-37: warning: unset value: $][$ [-Wother]
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e: INT | INT { } INT { } INT { $][1; };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:16.18-20: warning: unused value: $][3 [-Wother]
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e: INT | INT { } INT { } INT { $][1; };
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^^^
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input.y:16.27-29: warning: unused value: $][5 [-Wother]
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e: INT | INT { } INT { } INT { $][1; };
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^^^
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input.y:18.10-58: warning: unset value: $][$ [-Wother]
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g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:18.10-12: warning: unused value: $][1 [-Wother]
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g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
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^^^
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]]m4_ifval($2, [[[input.y:18.14-29: warning: unused value: $][2 [-Wmidrule-values]
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g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
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^^^^^^^^^^^^^^^^
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]]])[[input.y:18.31-33: warning: unused value: $][3 [-Wother]
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g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
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^^^
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]]m4_ifval($2, [[[input.y:18.35-50: warning: unused value: $][4 [-Wmidrule-values]
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g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
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^^^^^^^^^^^^^^^^
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]]])[[input.y:18.52-54: warning: unused value: $][5 [-Wother]
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g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
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^^^
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input.y:19.10-72: warning: unset value: $][$ [-Wother]
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h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:19.10-12: warning: unused value: $][1 [-Wother]
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h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
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^^^
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input.y:19.31-33: warning: unused value: $][3 [-Wother]
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h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
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^^^
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]]m4_ifval($2, [[[input.y:19.35-64: warning: unused value: $][4 [-Wmidrule-values]
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h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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]]])[[input.y:19.66-68: warning: unused value: $][5 [-Wother]
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h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
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^^^
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]]m4_ifval($2, [[[input.y:21.18-37: warning: unused value: $][3 [-Wmidrule-values]
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j: INT | INT INT { $<integer>$ = 1; } { $][$ = $][1 + $][2; };
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^^^^^^^^^^^^^^^^^^^^
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]]])[[input.y:22.10-68: warning: unset value: $][$ [-Wother]
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k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:22.10-12: warning: unused value: $][1 [-Wother]
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k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
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^^^
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input.y:22.14-16: warning: unused value: $][2 [-Wother]
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k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
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^^^
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]]m4_ifval($2, [[[input.y:22.35-64: warning: unused value: $][4 [-Wmidrule-values]
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k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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]]])[[input.y:25.23-25: warning: unset value: $][$ [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:25.40-42: warning: unset value: $][$ [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:25.10-50: warning: unset value: $][$ [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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input.y:25.10-12: warning: unused value: $][1 [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:25.23-25: warning: unused value: $][2 [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:25.27-29: warning: unused value: $][3 [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:25.40-42: warning: unused value: $][4 [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:25.44-46: warning: unused value: $][5 [-Wother]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:26.23-25: warning: unset value: $][$ [-Wother]
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o: INT | INT <integer>{ } INT <integer>{ } INT { $][$ = $][1 + $][2 + $][3 + $][4 + $][5; };
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^^^
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input.y:26.40-42: warning: unset value: $][$ [-Wother]
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o: INT | INT <integer>{ } INT <integer>{ } INT { $][$ = $][1 + $][2 + $][3 + $][4 + $][5; };
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^^^
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]])
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AT_BISON_CHECK([-Wnone,yacc -fcaret input.y],
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[0], [],
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[[input.y:24.23-34: warning: POSIX Yacc does not support typed midrule actions [-Wyacc]
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m: INT | INT <integer>{ $][$ = $][1; } INT <integer>{ $][$ = $][2 + $][3; } INT { $][$ = $][4 + $][5; };
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^^^^^^^^^^^^
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input.y:24.49-65: warning: POSIX Yacc does not support typed midrule actions [-Wyacc]
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m: INT | INT <integer>{ $][$ = $][1; } INT <integer>{ $][$ = $][2 + $][3; } INT { $][$ = $][4 + $][5; };
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^^^^^^^^^^^^^^^^^
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input.y:25.23-25: warning: POSIX Yacc does not support typed midrule actions [-Wyacc]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:25.40-42: warning: POSIX Yacc does not support typed midrule actions [-Wyacc]
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n: INT | INT <integer>{ } INT <integer>{ } INT { };
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^^^
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input.y:26.23-25: warning: POSIX Yacc does not support typed midrule actions [-Wyacc]
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o: INT | INT <integer>{ } INT <integer>{ } INT { $][$ = $][1 + $][2 + $][3 + $][4 + $][5; };
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^^^
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input.y:26.40-42: warning: POSIX Yacc does not support typed midrule actions [-Wyacc]
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o: INT | INT <integer>{ } INT <integer>{ } INT { $][$ = $][1 + $][2 + $][3 + $][4 + $][5; };
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^^^
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]])
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])
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## --------------- ##
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## Unused values. ##
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## --------------- ##
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AT_SETUP([Unused values])
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AT_CHECK_UNUSED_VALUES
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AT_CHECK_UNUSED_VALUES(, [1])
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AT_CLEANUP
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## ------------------------------------------ ##
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## Unused values before symbol declarations. ##
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## ------------------------------------------ ##
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AT_SETUP([Unused values before symbol declarations])
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AT_CHECK_UNUSED_VALUES([1])
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AT_CHECK_UNUSED_VALUES([1], [1])
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AT_CLEANUP
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## --------------------------------------------- ##
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## Default %printer and %destructor redeclared. ##
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## --------------------------------------------- ##
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AT_SETUP([Default %printer and %destructor redeclared])
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# AT_TEST([*])
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# ------------
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m4_pushdef([AT_TEST],
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[AT_DATA([[input.y]],
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[[%destructor { destroy ($$); } <$1> <$1>
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%printer { print ($$); } <$1> <$1>
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%destructor { destroy ($$); } <$1>
|
|
%printer { print ($$); } <$1>
|
|
|
|
%%
|
|
|
|
start: %empty;
|
|
|
|
%destructor { destroy ($$); } <$1>;
|
|
%printer { print ($$); } <$1>;
|
|
]])
|
|
|
|
AT_BISON_CHECK([-fcaret input.y], [1], [],
|
|
[[input.y:1.13-29: error: %destructor redeclaration for <>
|
|
%destructor { destroy ($$); } <> <>
|
|
^^^^^^^^^^^^^^^^^
|
|
input.y:1.13-29: previous declaration
|
|
%destructor { destroy ($$); } <> <>
|
|
^^^^^^^^^^^^^^^^^
|
|
input.y:2.10-24: error: %printer redeclaration for <>
|
|
%printer { print ($$); } <> <>
|
|
^^^^^^^^^^^^^^^
|
|
input.y:2.10-24: previous declaration
|
|
%printer { print ($$); } <> <>
|
|
^^^^^^^^^^^^^^^
|
|
input.y:4.13-29: error: %destructor redeclaration for <>
|
|
%destructor { destroy ($$); } <>
|
|
^^^^^^^^^^^^^^^^^
|
|
input.y:1.13-29: previous declaration
|
|
%destructor { destroy ($$); } <> <>
|
|
^^^^^^^^^^^^^^^^^
|
|
input.y:5.10-24: error: %printer redeclaration for <>
|
|
%printer { print ($$); } <>
|
|
^^^^^^^^^^^^^^^
|
|
input.y:2.10-24: previous declaration
|
|
%printer { print ($$); } <> <>
|
|
^^^^^^^^^^^^^^^
|
|
input.y:11.13-29: error: %destructor redeclaration for <>
|
|
%destructor { destroy ($$); } <>;
|
|
^^^^^^^^^^^^^^^^^
|
|
input.y:1.13-29: previous declaration
|
|
%destructor { destroy ($$); } <> <>
|
|
^^^^^^^^^^^^^^^^^
|
|
input.y:12.10-24: error: %printer redeclaration for <>
|
|
%printer { print ($$); } <>;
|
|
^^^^^^^^^^^^^^^
|
|
input.y:2.10-24: previous declaration
|
|
%printer { print ($$); } <> <>
|
|
^^^^^^^^^^^^^^^
|
|
]])
|
|
])
|
|
|
|
AT_TEST([], [], [])
|
|
AT_TEST([], [*], [*])
|
|
m4_popdef([AT_TEST])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ---------------------------------------------- ##
|
|
## Per-type %printer and %destructor redeclared. ##
|
|
## ---------------------------------------------- ##
|
|
|
|
AT_SETUP([Per-type %printer and %destructor redeclared])
|
|
|
|
AT_DATA([[input.y]],
|
|
[[%destructor { destroy ($$); } <field1> <field2>
|
|
%printer { print ($$); } <field1> <field2>
|
|
|
|
%destructor { destroy ($$); } <field1> <field1>
|
|
%printer { print ($$); } <field2> <field2>
|
|
|
|
%%
|
|
|
|
start: %empty;
|
|
|
|
%destructor { destroy ($$); } <field2> <field1>;
|
|
%printer { print ($$); } <field2> <field1>;
|
|
]])
|
|
|
|
AT_BISON_CHECK([input.y], [1], [],
|
|
[[input.y:4.13-29: error: %destructor redeclaration for <field1>
|
|
input.y:1.13-29: previous declaration
|
|
input.y:4.13-29: error: %destructor redeclaration for <field1>
|
|
input.y:1.13-29: previous declaration
|
|
input.y:5.10-24: error: %printer redeclaration for <field2>
|
|
input.y:2.10-24: previous declaration
|
|
input.y:5.10-24: error: %printer redeclaration for <field2>
|
|
input.y:2.10-24: previous declaration
|
|
input.y:11.13-29: error: %destructor redeclaration for <field2>
|
|
input.y:1.13-29: previous declaration
|
|
input.y:11.13-29: error: %destructor redeclaration for <field1>
|
|
input.y:1.13-29: previous declaration
|
|
input.y:12.10-24: error: %printer redeclaration for <field2>
|
|
input.y:2.10-24: previous declaration
|
|
input.y:12.10-24: error: %printer redeclaration for <field1>
|
|
input.y:2.10-24: previous declaration
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## ------------------- ##
|
|
## Undefined symbols. ##
|
|
## ------------------- ##
|
|
|
|
AT_SETUP([Undefined symbols])
|
|
|
|
AT_DATA([[input.y]],
|
|
[[%printer {} foo baz
|
|
%destructor {} bar
|
|
%type <foo> qux
|
|
%%
|
|
exp: bar;
|
|
]])
|
|
|
|
AT_BISON_CHECK([-fcaret input.y], [1], [],
|
|
[[input.y:2.16-18: error: symbol bar is used, but is not defined as a token and has no rules
|
|
%destructor {} bar
|
|
^^^
|
|
input.y:1.17-19: warning: symbol baz is used, but is not defined as a token and has no rules [-Wother]
|
|
%printer {} foo baz
|
|
^^^
|
|
input.y:1.13-15: warning: symbol foo is used, but is not defined as a token and has no rules [-Wother]
|
|
%printer {} foo baz
|
|
^^^
|
|
input.y:3.13-15: warning: symbol qux is used, but is not defined as a token and has no rules [-Wother]
|
|
%type <foo> qux
|
|
^^^
|
|
]])
|
|
|
|
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_TEST([INPUT], [STDERR])
|
|
# --------------------------
|
|
m4_pushdef([AT_TEST],
|
|
[AT_DATA([[input.y]],
|
|
[$1
|
|
])
|
|
AT_BISON_CHECK([input.y], [0], [], [$2
|
|
])])
|
|
|
|
AT_TEST([[%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";]],
|
|
[[input.y:16.13-19: warning: useless %printer for type <type1> [-Wother]
|
|
input.y:17.16-22: warning: useless %destructor for type <type2> [-Wother]]])
|
|
|
|
# If everybody is typed, <> is useless.
|
|
AT_TEST([[%type <type> exp
|
|
%token <type> a
|
|
%printer {} <> <*>
|
|
%%
|
|
exp: a;]],
|
|
[[input.y:3.13-14: warning: useless %printer for type <> [-Wother]]])
|
|
|
|
# If nobody is typed, <*> is useless.
|
|
AT_TEST([[%token a
|
|
%printer {} <> <*>
|
|
%%
|
|
exp: a;]],
|
|
[[input.y:2.16-18: warning: useless %printer for type <*> [-Wother]]])
|
|
|
|
m4_popdef([AT_TEST])
|
|
|
|
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([-fcaret input.y], [0], [],
|
|
[[input.y:6.8-45: warning: unset value: $$ [-Wother]
|
|
start: end end tagged tagged { $<tag>1; $3; } ;
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
input.y:6.12-14: warning: unused value: $2 [-Wother]
|
|
start: end end tagged tagged { $<tag>1; $3; } ;
|
|
^^^
|
|
input.y:7.6-8: warning: unset value: $$ [-Wother]
|
|
end: { } ;
|
|
^^^
|
|
]])
|
|
|
|
AT_DATA([[input.y]],
|
|
[[%destructor { destroy ($$); } <*>
|
|
%type <tag> tagged
|
|
|
|
%%
|
|
|
|
start: end end tagged tagged { $<tag>1; $3; } ;
|
|
end: { } ;
|
|
tagged: { } ;
|
|
]])
|
|
|
|
AT_BISON_CHECK([input.y], [0], [],
|
|
[[input.y:6.23-28: warning: unused value: $4 [-Wother]
|
|
input.y:8.9-11: warning: unset value: $$ [-Wother]
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ----------------------------------------- ##
|
|
## Unused values with per-type %destructor. ##
|
|
## ----------------------------------------- ##
|
|
|
|
AT_SETUP([Unused values with per-type %destructor])
|
|
|
|
AT_DATA([[input.y]],
|
|
[[%destructor { destroy ($$); } <field1>
|
|
%type <field1> start end
|
|
|
|
%%
|
|
|
|
start: end end { $1; } ;
|
|
end: { } ;
|
|
]])
|
|
|
|
AT_BISON_CHECK([-fcaret input.y], [0], [],
|
|
[[input.y:6.8-22: warning: unset value: $$ [-Wother]
|
|
start: end end { $1; } ;
|
|
^^^^^^^^^^^^^^^
|
|
input.y:6.12-14: warning: unused value: $2 [-Wother]
|
|
start: end end { $1; } ;
|
|
^^^
|
|
input.y:7.6-8: warning: unset value: $$ [-Wother]
|
|
end: { } ;
|
|
^^^
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ---------------------- ##
|
|
## Incompatible Aliases. ##
|
|
## ---------------------- ##
|
|
|
|
AT_SETUP([Incompatible Aliases])
|
|
|
|
m4_pushdef([AT_TEST],
|
|
[AT_DATA([input.y], [$1])
|
|
AT_BISON_CHECK([-fcaret input.y], [1], [], [$2])
|
|
])
|
|
|
|
# Use the string-alias first to check the order between "first
|
|
# declaration" and second.
|
|
|
|
AT_TEST([[%token foo "foo"
|
|
%type <bar> "foo"
|
|
%type <baz> foo
|
|
%%
|
|
exp: foo;
|
|
]],
|
|
[[input.y:3.7-11: error: %type redeclaration for foo
|
|
%type <baz> foo
|
|
^^^^^
|
|
input.y:2.7-11: previous declaration
|
|
%type <bar> "foo"
|
|
^^^^^
|
|
]])
|
|
|
|
AT_TEST([[%token foo "foo"
|
|
%printer {bar} "foo"
|
|
%printer {baz} foo
|
|
%%
|
|
exp: foo;
|
|
]],
|
|
[[input.y:3.10-14: error: %printer redeclaration for foo
|
|
%printer {baz} foo
|
|
^^^^^
|
|
input.y:2.10-14: previous declaration
|
|
%printer {bar} "foo"
|
|
^^^^^
|
|
]])
|
|
|
|
AT_TEST([[%token foo "foo"
|
|
%destructor {bar} "foo"
|
|
%destructor {baz} foo
|
|
%%
|
|
exp: foo;
|
|
]],
|
|
[[input.y:3.13-17: error: %destructor redeclaration for foo
|
|
%destructor {baz} foo
|
|
^^^^^
|
|
input.y:2.13-17: previous declaration
|
|
%destructor {bar} "foo"
|
|
^^^^^
|
|
]])
|
|
|
|
AT_TEST([[%token foo "foo"
|
|
%left "foo"
|
|
%left foo
|
|
%%
|
|
exp: foo;
|
|
]],
|
|
[[input.y:3.1-5: error: %left redeclaration for foo
|
|
%left foo
|
|
^^^^^
|
|
input.y:2.1-5: previous declaration
|
|
%left "foo"
|
|
^^^^^
|
|
]])
|
|
|
|
# This time, declare the alias after its use.
|
|
|
|
# Precedence/associativity.
|
|
AT_TEST([[%left "foo"
|
|
%left foo
|
|
%token foo "foo"
|
|
%%
|
|
exp: foo;
|
|
]],
|
|
[[input.y:2.1-5: error: %left redeclaration for foo
|
|
%left foo
|
|
^^^^^
|
|
input.y:1.1-5: previous declaration
|
|
%left "foo"
|
|
^^^^^
|
|
]])
|
|
|
|
# Printer.
|
|
AT_TEST([[%printer {} "foo"
|
|
%printer {} foo
|
|
%token foo "foo"
|
|
%%
|
|
exp: foo;
|
|
]],
|
|
[[input.y:2.10-11: error: %printer redeclaration for foo
|
|
%printer {} foo
|
|
^^
|
|
input.y:1.10-11: previous declaration
|
|
%printer {} "foo"
|
|
^^
|
|
]])
|
|
|
|
# Destructor.
|
|
AT_TEST([[%destructor {} "foo"
|
|
%destructor {} foo
|
|
%token foo "foo"
|
|
%%
|
|
exp: foo;
|
|
]],
|
|
[[input.y:2.13-14: error: %destructor redeclaration for foo
|
|
%destructor {} foo
|
|
^^
|
|
input.y:1.13-14: previous declaration
|
|
%destructor {} "foo"
|
|
^^
|
|
]])
|
|
|
|
m4_popdef([AT_TEST])
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
## ----------------------- ##
|
|
## Torturing the Scanner. ##
|
|
## ----------------------- ##
|
|
|
|
# Be sure to compile and run, so that the C compiler checks what
|
|
# we do.
|
|
|
|
AT_SETUP([Torturing the Scanner])
|
|
|
|
AT_BISON_OPTION_PUSHDEFS
|
|
AT_DATA([input.y], [])
|
|
AT_BISON_CHECK([input.y], [1], [],
|
|
[[input.y:1.1: error: syntax error, unexpected end of file
|
|
]])
|
|
|
|
|
|
AT_DATA([input.y],
|
|
[{}
|
|
])
|
|
AT_BISON_CHECK([-fcaret input.y], [1], [],
|
|
[[input.y:1.1-2: error: syntax error, unexpected {...}
|
|
{}
|
|
^^
|
|
]])
|
|
|
|
|
|
AT_DATA_GRAMMAR([input.y],
|
|
[[%{
|
|
/* This is seen in GCC: a %{ and %} in middle of a comment. */
|
|
const char *foo = "So %{ and %} can be here too.";
|
|
|
|
#if 0
|
|
/* These examples test Bison while not stressing C compilers too much.
|
|
Many C compilers mishandle backslash-newlines, so this part of the
|
|
test is inside "#if 0". The comment and string are written so that
|
|
the "#endif" will be seen regardless of the C compiler bugs that we
|
|
know about, namely:
|
|
|
|
HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a
|
|
comment.
|
|
|
|
The Apple Darwin compiler (as of late 2002) mishandles
|
|
\\[newline]' within a character constant.
|
|
|
|
*/
|
|
|
|
/\
|
|
* A comment with backslash-newlines in it. %} *\
|
|
\
|
|
/
|
|
/* { Close the above comment, if the C compiler mishandled it. */
|
|
|
|
char str[] = "\\
|
|
" A string with backslash-newlines in it %{ %} \\
|
|
\
|
|
"";
|
|
|
|
char apostrophe = '\'';
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
%}
|
|
/* %{ and %} can be here too. */
|
|
|
|
%{
|
|
/* Exercise pre-prologue dependency to %union. */
|
|
typedef int value;
|
|
%}
|
|
|
|
/* Exercise M4 quoting: '@:>@@:>@', 0. */
|
|
|
|
/* Also exercise %union. */
|
|
%union
|
|
{
|
|
value ival; /* A comment to exercise an old bug. */
|
|
};
|
|
|
|
|
|
/* Exercise post-prologue dependency to %union. */
|
|
%{
|
|
static YYSTYPE value_as_yystype (value val);
|
|
|
|
/* Exercise quotes in declarations. */
|
|
char quote[] = "@:>@@:>@,";
|
|
%}
|
|
|
|
%{
|
|
]AT_YYERROR_DECLARE[
|
|
]AT_YYLEX_DECLARE[
|
|
%}
|
|
|
|
%type <ival> '@<:@'
|
|
|
|
/* Exercise quotes in strings. */
|
|
%token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x1\1"
|
|
|
|
%%
|
|
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 1. */
|
|
exp: '@<:@' '\1' two '$' '@' '{' oline output.or.oline.opt
|
|
{
|
|
/* Exercise quotes in braces. */
|
|
char tmp[] = "@<:@%c@:>@,\n";
|
|
printf (tmp, $1);
|
|
}
|
|
;
|
|
|
|
two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
|
|
oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
|
|
output.or.oline.opt: %empty;|oline;;|output;;;
|
|
output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
|
|
%%
|
|
/* Exercise M4 quoting: '@:>@@:>@', @<:@, 2. */
|
|
|
|
static YYSTYPE
|
|
value_as_yystype (value val)
|
|
{
|
|
YYSTYPE res;
|
|
res.ival = val;
|
|
return res;
|
|
}
|
|
]AT_YYERROR_DEFINE[
|
|
static int
|
|
yylex (void)
|
|
{
|
|
static char const input[] = "@<:@\1\2$@{@oline@__@&t@oline__\
|
|
#output "; /* "
|
|
*/
|
|
static size_t toknum;
|
|
assert (toknum < sizeof input);
|
|
yylval = value_as_yystype (input[toknum]);
|
|
return input[toknum++];
|
|
}
|
|
]])
|
|
|
|
# Pacify Emacs'font-lock-mode: "
|
|
|
|
AT_DATA([main.c],
|
|
[[typedef int value;
|
|
#include "input.h"
|
|
|
|
int yyparse (void);
|
|
]AT_MAIN_DEFINE[
|
|
]])
|
|
AT_BISON_OPTION_POPDEFS
|
|
|
|
AT_BISON_CHECK([-d -v -o input.c input.y])
|
|
AT_COMPILE([input.o])
|
|
AT_COMPILE([main.o])
|
|
AT_COMPILE([input], [input.o main.o])
|
|
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 <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: %empty;
|
|
]])
|
|
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
|
|
|
|
|
|
## -------------- ##
|
|
## Symbol names. ##
|
|
## -------------- ##
|
|
|
|
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 {
|
|
]AT_YYERROR_DECLARE[
|
|
]AT_YYLEX_DECLARE[
|
|
}
|
|
%%
|
|
start: with-dash without_dash with.period without_period;
|
|
with-dash: WITH-DASH;
|
|
without_dash: "WITHOUT-DASH";
|
|
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: error: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Werror=yacc]
|
|
input.y:20.8-16: error: POSIX Yacc forbids dashes in symbol names: with-dash [-Werror=yacc]
|
|
]])
|
|
|
|
# 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])
|
|
|
|
|
|
# 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
|
|
]])
|
|
AT_BISON_CHECK([-o input.c input.y], [1], [],
|
|
[[input.y:10.10: error: invalid character: '-'
|
|
input.y:11.10-16: error: invalid identifier: '1NV4L1D'
|
|
input.y:12.10: error: invalid character: '-'
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ----------------- ##
|
|
## Numbered tokens. ##
|
|
## ----------------- ##
|
|
|
|
AT_SETUP([Numbered tokens])
|
|
|
|
AT_DATA_GRAMMAR([redecl.y],
|
|
[[%token DECIMAL_1 11259375
|
|
HEXADECIMAL_1 0xabcdef
|
|
HEXADECIMAL_2 0xFEDCBA
|
|
DECIMAL_2 16702650
|
|
%%
|
|
start: DECIMAL_1 HEXADECIMAL_2;
|
|
]])
|
|
|
|
AT_BISON_CHECK([redecl.y], [1], [],
|
|
[[redecl.y:10.10-22: error: user token number 11259375 redeclaration for HEXADECIMAL_1
|
|
redecl.y:9.8-16: previous declaration for DECIMAL_1
|
|
redecl.y:12.10-18: error: user token number 16702650 redeclaration for DECIMAL_2
|
|
redecl.y:11.10-22: previous declaration for HEXADECIMAL_2
|
|
]])
|
|
|
|
AT_DATA_GRAMMAR([too-large.y],
|
|
[[%token TOO_LARGE_DEC 999999999999999999999
|
|
TOO_LARGE_HEX 0xFFFFFFFFFFFFFFFFFFF
|
|
%%
|
|
start: TOO_LARGE_DEC TOO_LARGE_HEX
|
|
%%
|
|
]])
|
|
|
|
AT_BISON_CHECK([too-large.y], [1], [],
|
|
[[too-large.y:9.22-42: error: integer out of range: '999999999999999999999'
|
|
too-large.y:10.24-44: error: integer out of range: '0xFFFFFFFFFFFFFFFFFFF'
|
|
]])
|
|
|
|
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: %empty;
|
|
|
|
// 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 ($$)
|
|
]])
|
|
|
|
AT_BISON_CHECK([-fcaret -o input.c input.y], 1, [],
|
|
[[input.y:1.10-2.0: error: missing '"' at end of line
|
|
%token A "a
|
|
^^
|
|
input.y:4.10-5.0: error: missing "'" at end of line
|
|
%token C '1
|
|
^^
|
|
input.y:14.11-15.0: error: missing "'" at end of line
|
|
%type <f> 'a
|
|
^^
|
|
input.y:16.11-17.0: error: missing '"' at end of line
|
|
%type <f> "a
|
|
^^
|
|
input.y:19.13-20.0: error: missing '}' at end of file
|
|
%destructor { free ($$)
|
|
^^^^^^^^^^^
|
|
input.y:20.1: error: 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: %empty;
|
|
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: %empty;
|
|
]])
|
|
|
|
AT_BISON_CHECK([input.y], [1], [],
|
|
[[input.y:3.1-4: error: 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 [-Wother]
|
|
]])
|
|
|
|
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: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[input-c.y]], [[1]], [],
|
|
[[input-c.y:1.7: error: %code qualifier 'q' is not used
|
|
input-c.y:2.7-9: error: %code qualifier 'bad' is not used
|
|
input-c.y:3.7-9: error: %code qualifier 'bad' is not used
|
|
input-c.y:4.7-12: error: %code qualifier 'format' is not used
|
|
]])
|
|
|
|
AT_DATA([input-c-glr.y],
|
|
[[%code q {}
|
|
%code bad {}
|
|
%code bad {}
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[input-c-glr.y]], [[1]], [],
|
|
[[input-c-glr.y:1.7: error: %code qualifier 'q' is not used
|
|
input-c-glr.y:2.7-9: error: %code qualifier 'bad' is not used
|
|
input-c-glr.y:3.8-10: error: %code qualifier 'bad' is not used
|
|
]])
|
|
|
|
AT_DATA([input-c++.y],
|
|
[[%code q {}
|
|
%code bad {}
|
|
%code q {}
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[input-c++.y]], [[1]], [],
|
|
[[input-c++.y:1.7: error: %code qualifier 'q' is not used
|
|
input-c++.y:2.7-9: error: %code qualifier 'bad' is not used
|
|
input-c++.y:3.8: error: %code qualifier 'q' is not used
|
|
]])
|
|
|
|
AT_DATA([input-c++-glr.y],
|
|
[[%code bad {}
|
|
%code q {}
|
|
%code q {}
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[input-c++-glr.y]], [[1]], [],
|
|
[[input-c++-glr.y:1.7-9: error: %code qualifier 'bad' is not used
|
|
input-c++-glr.y:2.7: error: %code qualifier 'q' is not used
|
|
input-c++-glr.y:3.7: error: %code qualifier 'q' is not used
|
|
]])
|
|
|
|
AT_DATA([special-char-@@.y],
|
|
[[%code bad {}
|
|
%code q {}
|
|
%code q {}
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[special-char-@@.y]], [[1]], [],
|
|
[[special-char-@@.y:1.7-9: error: %code qualifier 'bad' is not used
|
|
special-char-@@.y:2.7: error: %code qualifier 'q' is not used
|
|
special-char-@@.y:3.7: error: %code qualifier 'q' is not used
|
|
]])
|
|
|
|
AT_DATA([special-char-@:>@.y],
|
|
[[%code bad {}
|
|
%code q {}
|
|
%code q {}
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[special-char-@:>@.y]], [[1]], [],
|
|
[[special-char-@:>@.y:1.7-9: error: %code qualifier 'bad' is not used
|
|
special-char-@:>@.y:2.7: error: %code qualifier 'q' is not used
|
|
special-char-@:>@.y:3.7: error: %code qualifier 'q' is not used
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ---------------- ##
|
|
## Multiple %code. ##
|
|
## ---------------- ##
|
|
|
|
AT_SETUP([Multiple %code])
|
|
|
|
# Make sure that repeated arguments to %code are separated by
|
|
# end-of-lines. At some point, a missing eol would leave synclines
|
|
# appended to the previous value. Here, we use CPP directive to
|
|
# introduce dependency on the absence/presence of the eol.
|
|
AT_BISON_OPTION_PUSHDEFS
|
|
|
|
AT_DATA([input.y],
|
|
[[%code {#include <assert.h>}
|
|
%code {#define A B}
|
|
%code {#define B C}
|
|
%code {#define C D}
|
|
%code {#define D 42}
|
|
%code {
|
|
]AT_YYERROR_DECLARE[
|
|
]AT_YYLEX_DECLARE[
|
|
}
|
|
%%
|
|
start: %empty;
|
|
%%
|
|
]AT_YYERROR_DEFINE[
|
|
]AT_YYLEX_DEFINE[
|
|
int main (void)
|
|
{
|
|
assert (A == 42);
|
|
return 0;
|
|
}
|
|
]])
|
|
AT_FULL_COMPILE([input])
|
|
AT_PARSER_CHECK([./input])
|
|
|
|
AT_BISON_OPTION_POPDEFS
|
|
AT_CLEANUP()
|
|
|
|
## ---------------- ##
|
|
## %define errors. ##
|
|
## ---------------- ##
|
|
|
|
AT_SETUP([%define errors])
|
|
|
|
AT_DATA([input-redefined.y],
|
|
[[%define var "value1"
|
|
%define var "value1"
|
|
%define var "value2"
|
|
%define special1 "@:>@"
|
|
%define special2 "@<:@"
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input-redefined.y]], [[1]], [],
|
|
[[input-redefined.y:2.9-11: error: %define variable 'var' redefined
|
|
input-redefined.y:1.9-11: previous definition
|
|
input-redefined.y:3.10-12: error: %define variable 'var' redefined
|
|
input-redefined.y:2.9-11: previous definition
|
|
]])
|
|
|
|
AT_DATA([input-unused.y],
|
|
[[%define var "value"
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input-unused.y]], [[1]], [],
|
|
[[input-unused.y:1.9-11: error: %define variable 'var' is not used
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ----------------------------------- ##
|
|
## %define, --define, --force-define. ##
|
|
## ----------------------------------- ##
|
|
|
|
AT_SETUP([[%define, --define, --force-define]])
|
|
|
|
AT_DATA([[skel.c]],
|
|
[[m4@&t@_divert_push(0)@
|
|
@output(b4_parser_file_name@)@
|
|
[var-dd: ]b4_percent_define_get([[var-dd]])[
|
|
var-ff: ]b4_percent_define_get([[var-ff]])[
|
|
var-dfg: ]b4_percent_define_get([[var-dfg]])[
|
|
var-fd: ]b4_percent_define_get([[var-fd]])
|
|
m4@&t@_divert_pop(0)
|
|
]])
|
|
AT_DATA([[input.y]],
|
|
[[%define var-dfg "gram"
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
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 \
|
|
--skeleton ./skel.c input.y]])
|
|
AT_CHECK([[cat input.tab.c]], [[0]],
|
|
[[var-dd: cmd-d2
|
|
var-ff: cmd-f2
|
|
var-dfg: cmd-f
|
|
var-fd: cmd-d
|
|
]])
|
|
|
|
AT_DATA([[input-dg.y]],
|
|
[[%define var "gram"
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[-Dvar=cmd-d input-dg.y]], [[1]], [],
|
|
[[input-dg.y:1.9-11: error: %define variable 'var' redefined
|
|
<command line>:2: previous definition
|
|
]])
|
|
|
|
AT_DATA([[input-dg.y]],
|
|
[[%define var "gram"
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[-fcaret -Dvar=cmd-d input-dg.y]], [[1]], [],
|
|
[[input-dg.y:1.9-11: error: %define variable 'var' redefined
|
|
%define var "gram"
|
|
^^^
|
|
<command line>:3: previous definition
|
|
]])
|
|
|
|
AT_DATA([[input-unused.y]],
|
|
[[%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[-Dunused-d -Funused-f input-unused.y]], [[1]], [],
|
|
[[<command line>:2: error: %define variable 'unused-d' is not used
|
|
<command line>:3: error: %define variable 'unused-f' 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: %empty;
|
|
]])
|
|
|
|
AT_BISON_CHECK([[Input.y]], [1], [],
|
|
[[Input.y:2.9-14: error: invalid value for %define Boolean variable 'public'
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## ------------------------ ##
|
|
## %define code variables. ##
|
|
## ------------------------ ##
|
|
|
|
AT_SETUP([["%define" code variables]])
|
|
|
|
m4_pushdef([AT_TEST],
|
|
[AT_DATA([input.yy],
|
|
[[%skeleton "lalr1.cc" %locations
|
|
%define api.location.type ]$1[quux]$2[
|
|
%define api.namespace ]$1[quux]$2[
|
|
%define api.prefix ]$1[quux]$2[
|
|
%define api.token.prefix ]$1[quux]$2[
|
|
%token TOK // Otherwise api.token.prefix is unused.
|
|
%%
|
|
start: TOK;
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input.yy]], [0], [],
|
|
[[input.yy:2.9-25: warning: %define variable 'api.location.type' requires '{...}' values [-Wdeprecated]
|
|
input.yy:4.9-18: warning: %define variable 'api.prefix' requires '{...}' values [-Wdeprecated]
|
|
input.yy:5.9-24: warning: %define variable 'api.token.prefix' requires '{...}' values [-Wdeprecated]
|
|
input.yy:3.9-21: warning: %define variable 'api.namespace' requires '{...}' values [-Wdeprecated]
|
|
]])
|
|
])
|
|
|
|
AT_TEST([], [])
|
|
AT_TEST(["], ["])
|
|
m4_popdef([AT_TEST])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## --------------------------- ##
|
|
## %define keyword variables. ##
|
|
## --------------------------- ##
|
|
|
|
AT_SETUP([["%define" keyword variables]])
|
|
|
|
m4_pushdef([AT_TEST],
|
|
[AT_DATA([input.y],
|
|
[[%define api.pure ]$1[true]$2[
|
|
%define api.push-pull ]$1[both]$2[
|
|
%define lr.default-reduction ]$1[most]$2[
|
|
%define lr.keep-unreachable-state ]$1[true]$2[
|
|
%define lr.type ]$1[lalr]$2[
|
|
%%
|
|
exp: %empty
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input.y]], [0], [],
|
|
[[input.y:5.9-15: warning: %define variable 'lr.type' requires keyword values [-Wdeprecated]
|
|
input.y:3.9-28: warning: %define variable 'lr.default-reduction' requires keyword values [-Wdeprecated]
|
|
input.y:4.9-33: warning: %define variable 'lr.keep-unreachable-state' requires keyword values [-Wdeprecated]
|
|
input.y:2.9-21: warning: %define variable 'api.push-pull' requires keyword values [-Wdeprecated]
|
|
input.y:1.9-16: warning: %define variable 'api.pure' requires keyword values [-Wdeprecated]
|
|
]])
|
|
])
|
|
|
|
AT_TEST(["], ["])
|
|
AT_TEST([{], [}])
|
|
m4_popdef([AT_TEST])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ------------------------ ##
|
|
## %define enum variables. ##
|
|
## ------------------------ ##
|
|
|
|
AT_SETUP([["%define" enum variables]])
|
|
|
|
# Check errors from the front-end, and the back-end. Since the
|
|
# front-end quits before calling the back-end, these tests cannot be
|
|
# fused.
|
|
|
|
# Front-end.
|
|
AT_DATA([[input.y]],
|
|
[[%define lr.default-reduction bogus
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],
|
|
[[input.y:1.9-28: error: invalid value for %define variable 'lr.default-reduction': 'bogus'
|
|
%define lr.default-reduction bogus
|
|
^^^^^^^^^^^^^^^^^^^^
|
|
input.y:1.9-28: accepted value: 'most'
|
|
input.y:1.9-28: accepted value: 'consistent'
|
|
input.y:1.9-28: accepted value: 'accepting'
|
|
]])
|
|
|
|
# Back-end.
|
|
AT_DATA([[input.y]],
|
|
[[%define api.push-pull neither
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],
|
|
[[input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'
|
|
%define 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
|
|
|
|
## -------------------------------- ##
|
|
## %define backward compatibility. ##
|
|
## -------------------------------- ##
|
|
|
|
AT_SETUP([["%define" backward compatibility]])
|
|
|
|
# The error messages tell us whether the variables are properly updated.
|
|
AT_DATA([[input.y]],
|
|
[[%define api.push_pull both
|
|
%define lr.keep_unreachable_states maybe
|
|
%define namespace "foo"
|
|
%define api.namespace {foo}
|
|
%define variant
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[-fcaret input.y]], [1], [],
|
|
[[input.y:1.9-21: warning: deprecated directive, use '%define api.push-pull both' [-Wdeprecated]
|
|
%define api.push_pull both
|
|
^^^^^^^^^^^^^
|
|
input.y:2.9-34: warning: deprecated directive, use '%define lr.keep-unreachable-state maybe' [-Wdeprecated]
|
|
%define lr.keep_unreachable_states maybe
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
input.y:3.9-17: warning: deprecated directive, use '%define api.namespace foo' [-Wdeprecated]
|
|
%define namespace "foo"
|
|
^^^^^^^^^
|
|
input.y:4.9-21: error: %define variable 'api.namespace' redefined
|
|
%define api.namespace {foo}
|
|
^^^^^^^^^^^^^
|
|
input.y:3.9-17: previous definition
|
|
%define namespace "foo"
|
|
^^^^^^^^^
|
|
input.y:5.9-15: warning: deprecated directive, use '%define api.value.type variant' [-Wdeprecated]
|
|
%define variant
|
|
^^^^^^^
|
|
]])
|
|
|
|
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: %empty;
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input.y]], [[1]], [],
|
|
[[input.y:1.9-16: error: %define variable 'api.pure' is not used
|
|
]])
|
|
])
|
|
|
|
AT_CHECK_API_PURE([[%language "c++"]], [[]])
|
|
AT_CHECK_API_PURE([[%language "c++"]], [[false]])
|
|
AT_CHECK_API_PURE([[%language "c++" %glr-parser]], [[""]])
|
|
AT_CHECK_API_PURE([[%language "c++" %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 api.namespace {]$1[}
|
|
%%
|
|
start: %empty;
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input.y]], [1], [],
|
|
[m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
|
|
[[input.y:3.9-21: error: ]b4_arg[
|
|
]])])
|
|
])
|
|
|
|
AT_CHECK_NAMESPACE_ERROR([[]],
|
|
[[namespace reference is empty]])
|
|
AT_CHECK_NAMESPACE_ERROR([[ @tb@@tb@ @tb@ @tb@]],
|
|
[[namespace reference is empty]])
|
|
AT_CHECK_NAMESPACE_ERROR([[foo::::bar]],
|
|
[[namespace reference has consecutive "::"]])
|
|
AT_CHECK_NAMESPACE_ERROR([[foo:: @tb@::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::@tb@::]],
|
|
[[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:: @tb@]],
|
|
[[namespace reference has a trailing "::"]])
|
|
AT_CHECK_NAMESPACE_ERROR([[::]],
|
|
[[namespace reference has a trailing "::"]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## ------------------------ ##
|
|
## Bad character literals. ##
|
|
## ------------------------ ##
|
|
|
|
# Bison used to accept character literals that were empty or contained
|
|
# too many characters.
|
|
|
|
# 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]])
|
|
|
|
AT_DATA([empty.y],
|
|
[[%%
|
|
start: '';
|
|
start: '
|
|
]])
|
|
AT_CHECK([[$PERL -e "print 'start: \'';" >> empty.y || exit 77]])
|
|
|
|
AT_BISON_CHECK([-fcaret empty.y], [1], [],
|
|
[[empty.y:2.8-9: warning: empty character literal [-Wother]
|
|
start: '';
|
|
^^
|
|
empty.y:3.8-4.0: error: missing "'" at end of line
|
|
start: '
|
|
^
|
|
empty.y:3.8-4.0: warning: empty character literal [-Wother]
|
|
start: '
|
|
^
|
|
empty.y:4.8: error: missing "'" at end of file
|
|
start: '
|
|
^
|
|
empty.y:4.8: warning: empty character literal [-Wother]
|
|
start: '
|
|
^
|
|
]])
|
|
|
|
AT_DATA([two.y],
|
|
[[%%
|
|
start: 'ab';
|
|
start: 'ab
|
|
]])
|
|
AT_CHECK([[$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 [-Wother]
|
|
two.y:3.8-4.0: error: missing "'" at end of line
|
|
two.y:3.8-4.0: warning: extra characters in character literal [-Wother]
|
|
two.y:4.8-10: error: missing "'" at end of file
|
|
two.y:4.8-10: warning: extra characters in character literal [-Wother]
|
|
]])
|
|
|
|
AT_DATA([three.y],
|
|
[[%%
|
|
start: 'abc';
|
|
start: 'abc
|
|
]])
|
|
AT_CHECK([[$PERL -e "print 'start: \'abc';" >> three.y || exit 77]])
|
|
|
|
AT_BISON_CHECK([three.y], [1], [],
|
|
[[three.y:2.8-12: warning: extra characters in character literal [-Wother]
|
|
three.y:3.8-4.0: error: missing "'" at end of line
|
|
three.y:3.8-4.0: warning: extra characters in character literal [-Wother]
|
|
three.y:4.8-11: error: missing "'" at end of file
|
|
three.y:4.8-11: warning: extra characters in character literal [-Wother]
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## ------------------------- ##
|
|
## Bad escapes in literals. ##
|
|
## ------------------------- ##
|
|
|
|
AT_SETUP([[Bad escapes in literals]])
|
|
|
|
AT_DATA([input.y],
|
|
[[%%
|
|
start: '\777' '\0' '\xfff' '\x0'
|
|
'\uffff' '\u0000' '\Uffffffff' '\U00000000'
|
|
'\ ' '\A';
|
|
]])
|
|
|
|
# It is not easy to create special characters, we cannot even trust tr.
|
|
# Beside we cannot even expect "echo '\0'" to output two characters
|
|
# (well three with \n): at least Bash 3.2 converts the two-character
|
|
# sequence "\0" into a single NUL character.
|
|
AT_CHECK([[$PERL -e 'print "start: \"\\\t\\\f\\\0\\\1\" ;";' >> input.y \
|
|
|| exit 77]])
|
|
|
|
AT_BISON_CHECK([input.y], [1], [],
|
|
[[input.y:2.9-12: error: invalid number after \-escape: 777
|
|
input.y:2.8-13: warning: empty character literal [-Wother]
|
|
input.y:2.16-17: error: invalid number after \-escape: 0
|
|
input.y:2.15-18: warning: empty character literal [-Wother]
|
|
input.y:2.21-25: error: invalid number after \-escape: xfff
|
|
input.y:2.20-26: warning: empty character literal [-Wother]
|
|
input.y:2.29-31: error: invalid number after \-escape: x0
|
|
input.y:2.28-32: warning: empty character literal [-Wother]
|
|
input.y:3.9-14: error: invalid number after \-escape: uffff
|
|
input.y:3.8-15: warning: empty character literal [-Wother]
|
|
input.y:3.18-23: error: invalid number after \-escape: u0000
|
|
input.y:3.17-24: warning: empty character literal [-Wother]
|
|
input.y:3.27-36: error: invalid number after \-escape: Uffffffff
|
|
input.y:3.26-37: warning: empty character literal [-Wother]
|
|
input.y:3.40-49: error: invalid number after \-escape: U00000000
|
|
input.y:3.39-50: warning: empty character literal [-Wother]
|
|
input.y:4.9-10: error: invalid character after \-escape: ' '
|
|
input.y:4.8-11: warning: empty character literal [-Wother]
|
|
input.y:4.14-15: error: invalid character after \-escape: A
|
|
input.y:4.13-16: warning: empty character literal [-Wother]
|
|
input.y:5.9-16: error: invalid character after \-escape: \t
|
|
input.y:5.17: error: invalid character after \-escape: \f
|
|
input.y:5.18: error: invalid character after \-escape: \0
|
|
input.y:5.19: error: invalid character after \-escape: \001
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## ------------------------- ##
|
|
## LAC: Errors for %define. ##
|
|
## ------------------------- ##
|
|
|
|
AT_SETUP([[LAC: Errors for %define]])
|
|
|
|
AT_DATA([[input.y]],
|
|
[[%%
|
|
start: %empty;
|
|
]])
|
|
|
|
# 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: error: %define variable 'parse.lac.es-capacity-initial' is not used
|
|
]])
|
|
AT_BISON_CHECK([[-Dparse.lac.memory-trace=full input.y]],
|
|
[[1]], [],
|
|
[[<command line>:2: error: %define variable 'parse.lac.memory-trace' is not used
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## ---------------------- ##
|
|
## -Werror combinations. ##
|
|
## ---------------------- ##
|
|
|
|
AT_SETUP([[-Werror combinations]])
|
|
|
|
AT_DATA([[input.y]],
|
|
[[%%
|
|
a: '0' { $$ = $; };
|
|
]])
|
|
|
|
# -Werror is not enabled by -Wall or equivalent.
|
|
AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]],
|
|
[[input.y:2.15: warning: stray '$' [-Wother]
|
|
]])
|
|
AT_BISON_CHECK([[-W input.y]], [[0]], [[]],
|
|
[[input.y:2.15: warning: stray '$' [-Wother]
|
|
]])
|
|
AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]],
|
|
[[input.y:2.15: warning: stray '$' [-Wother]
|
|
]])
|
|
|
|
# -Werror is not disabled by -Wnone or equivalent.
|
|
AT_BISON_CHECK([[-Werror,none,other input.y]], [[1]], [[]],
|
|
[[input.y:2.15: error: stray '$' [-Werror=other]
|
|
]])
|
|
AT_BISON_CHECK([[-Werror,no-all,other input.y]], [[1]], [[]],
|
|
[[input.y:2.15: error: stray '$' [-Werror=other]
|
|
]])
|
|
|
|
# Check that -Wno-error keeps warnings enabled, but non fatal.
|
|
AT_BISON_CHECK([[-Werror -Wno-error=other input.y]], [[0]], [[]],
|
|
[[input.y:2.15: warning: stray '$' [-Wother]
|
|
]])
|
|
|
|
AT_BISON_CHECK([[-Wno-error=other -Werror input.y]], [[0]], [[]],
|
|
[[input.y:2.15: warning: stray '$' [-Wother]
|
|
]])
|
|
|
|
AT_BISON_CHECK([[-Werror=other -Wno-other input.y]], [[0]], [[]],
|
|
[[]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ------------------------------------------------------ ##
|
|
## %name-prefix and %define api.prefix are incompatible. ##
|
|
## ------------------------------------------------------ ##
|
|
|
|
AT_SETUP([[%name-prefix and api.prefix are incompatible]])
|
|
|
|
# AT_TEST(DIRECTIVES, OPTIONS, ERROR-LOCATION)
|
|
# --------------------------------------------
|
|
m4_pushdef([AT_TEST],
|
|
[AT_DATA([[input.y]],
|
|
[[$1
|
|
%%
|
|
exp: %empty;
|
|
]])
|
|
AT_BISON_CHECK([[$2 input.y]], [[1]], [[]],
|
|
[[$3: error: '%name-prefix' and '%define api.prefix' cannot be used together
|
|
]])
|
|
])
|
|
|
|
AT_TEST([%define api.prefix {foo} %name-prefix "bar"], [], [input.y:1.9-18])
|
|
AT_TEST([], [-Dapi.prefix={foo} -p bar], [<command line>:2])
|
|
AT_TEST([%name-prefix "bar"], [-Dapi.prefix={foo}], [<command line>:2])
|
|
AT_TEST([%define api.prefix {foo}], [-p bar], [input.y:1.9-18])
|
|
|
|
m4_popdef([AT_TEST])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## ----------------------- ##
|
|
## Redefined %union name. ##
|
|
## ----------------------- ##
|
|
|
|
AT_SETUP([[Redefined %union name]])
|
|
|
|
# AT_TEST(DIRECTIVES, ERROR)
|
|
# --------------------------
|
|
m4_pushdef([AT_TEST],
|
|
[AT_DATA([[input.y]],
|
|
[$1
|
|
%%
|
|
exp: %empty;
|
|
])
|
|
|
|
AT_BISON_CHECK([[input.y]], [[1]], [[]],
|
|
[$2])
|
|
])
|
|
|
|
AT_TEST([[%union foo {};
|
|
%union {};
|
|
%union foo {};
|
|
%define api.value.union.name foo]],
|
|
[[input.y:3.8-10: error: %define variable 'api.value.union.name' redefined
|
|
input.y:1.8-10: previous definition
|
|
input.y:4.9-28: error: %define variable 'api.value.union.name' redefined
|
|
input.y:3.8-10: previous definition
|
|
]])
|
|
|
|
AT_TEST([[%define api.value.union.name {foo}]],
|
|
[[input.y:1.9-28: error: %define variable 'api.value.union.name' requires keyword values
|
|
input.y:1.9-28: error: %define variable 'api.value.union.name' is not used
|
|
]])
|
|
|
|
AT_TEST([[%define api.value.union.name "foo"]],
|
|
[[input.y:1.9-28: error: %define variable 'api.value.union.name' requires keyword values
|
|
input.y:1.9-28: error: %define variable 'api.value.union.name' is not used
|
|
]])
|
|
|
|
m4_popdef([AT_TEST])
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
|
|
## -------------- ##
|
|
## Stray $ or @. ##
|
|
## -------------- ##
|
|
|
|
AT_SETUP([[Stray $ or @]])
|
|
|
|
# Give %printer and %destructor "<*> exp TOK" instead of "<*>" to
|
|
# check that the warnings are reported once, not three times.
|
|
|
|
AT_DATA_GRAMMAR([[input.y]],
|
|
[[%type <TYPE> exp
|
|
%token <TYPE> TOK TOK2
|
|
%destructor { $%; @%; } <*> exp TOK;
|
|
%initial-action { $%; @%; };
|
|
%printer { $%; @%; } <*> exp TOK;
|
|
%{ $ @ %} // Should not warn.
|
|
%%
|
|
exp: TOK { $%; @%; $$ = $1; };
|
|
%%
|
|
$ @ // Should not warn.
|
|
]])
|
|
|
|
AT_BISON_CHECK([[-Wall input.y]], 0, [],
|
|
[[input.y:11.19: warning: stray '$' [-Wother]
|
|
input.y:11.23: warning: stray '@' [-Wother]
|
|
input.y:12.19: warning: stray '$' [-Wother]
|
|
input.y:12.23: warning: stray '@' [-Wother]
|
|
input.y:13.19: warning: stray '$' [-Wother]
|
|
input.y:13.23: warning: stray '@' [-Wother]
|
|
input.y:16.19: warning: stray '$' [-Wother]
|
|
input.y:16.23: warning: stray '@' [-Wother]
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
|
|
## ---------------- ##
|
|
## Code injection. ##
|
|
## ---------------- ##
|
|
|
|
|
|
AT_SETUP([[Code injection]])
|
|
|
|
m4_pattern_allow([^m4_errprintn$])
|
|
|
|
# AT_TEST([MACRO])
|
|
# ----------------
|
|
# Try to have MACRO be run by bison.
|
|
m4_pushdef([AT_TEST],
|
|
[AT_DATA([[input.y]],
|
|
[[%type <$1(DEAD %type)> exp
|
|
%token <$1(DEAD %token)> a
|
|
%token b
|
|
%initial-action
|
|
{
|
|
$$;
|
|
$<$1(DEAD %initial-action)>$
|
|
};
|
|
%printer
|
|
{
|
|
$$
|
|
$<$1(DEAD %printer)>$
|
|
} <> <*>;
|
|
%lex-param
|
|
{
|
|
$1(DEAD %lex-param)
|
|
};
|
|
%parse-param
|
|
{
|
|
$1(DEAD %parse-param)
|
|
};
|
|
%%
|
|
exp:
|
|
a a[name] b
|
|
{
|
|
$$;
|
|
$][1;
|
|
$<$1(DEAD action 1)>$
|
|
$<$1(DEAD action 2)>1
|
|
$<$1(DEAD action 3)>name
|
|
$<$1(DEAD action 4)>0
|
|
;
|
|
};
|
|
]])
|
|
|
|
# FIXME: Provide a means to iterate over all the skeletons.
|
|
AT_BISON_CHECK([[-d input.y]])
|
|
AT_BISON_CHECK([[-d -S glr.c input.y]])
|
|
AT_BISON_CHECK([[-d -S lalr1.cc input.y]])
|
|
AT_BISON_CHECK([[-d -S glr.cc input.y]])
|
|
AT_BISON_CHECK([[ -S lalr1.java input.y]])
|
|
])
|
|
|
|
AT_TEST([m4_errprintn])
|
|
AT_TEST([@:>@m4_errprintn])
|
|
|
|
m4_popdef([AT_TEST])
|
|
|
|
AT_CLEANUP
|
|
|
|
##----------------------- ##
|
|
## Deprecated directives. ##
|
|
## ---------------------- ##
|
|
|
|
AT_SETUP([[Deprecated directives]])
|
|
|
|
AT_KEYWORDS([[deprec]])
|
|
|
|
AT_DATA_GRAMMAR([[input.y]],
|
|
[[
|
|
%default_prec
|
|
%error_verbose
|
|
%expect_rr 0
|
|
%file-prefix = "foo"
|
|
%file-prefix
|
|
=
|
|
"bar"
|
|
%fixed-output_files
|
|
%fixed_output-files
|
|
%fixed-output-files
|
|
%name-prefix= "foo"
|
|
%no-default_prec
|
|
%no_default-prec
|
|
%no_lines
|
|
%output = "foo"
|
|
%pure_parser
|
|
%token_table
|
|
%glr-parser
|
|
%% exp : '0'
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input.y]], [[0]], [[]],
|
|
[[input.y:10.1-13: warning: deprecated directive: '%default_prec', use '%default-prec' [-Wdeprecated]
|
|
input.y:11.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
|
|
input.y:12.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
|
|
input.y:13.1-14: warning: deprecated directive: '%file-prefix =', use '%file-prefix' [-Wdeprecated]
|
|
input.y:14.1-15.2: warning: deprecated directive: '%file-prefix\n =', use '%file-prefix' [-Wdeprecated]
|
|
input.y:17.1-19: warning: deprecated directive: '%fixed-output_files', use '%fixed-output-files' [-Wdeprecated]
|
|
input.y:18.1-19: warning: deprecated directive: '%fixed_output-files', use '%fixed-output-files' [-Wdeprecated]
|
|
input.y:20.1-13: warning: deprecated directive: '%name-prefix=', use '%name-prefix' [-Wdeprecated]
|
|
input.y:21.1-16: warning: deprecated directive: '%no-default_prec', use '%no-default-prec' [-Wdeprecated]
|
|
input.y:22.1-16: warning: deprecated directive: '%no_default-prec', use '%no-default-prec' [-Wdeprecated]
|
|
input.y:23.1-9: warning: deprecated directive: '%no_lines', use '%no-lines' [-Wdeprecated]
|
|
input.y:24.1-9: warning: deprecated directive: '%output =', use '%output' [-Wdeprecated]
|
|
input.y:25.1-12: warning: deprecated directive: '%pure_parser', use '%pure-parser' [-Wdeprecated]
|
|
input.y:26.1-12: warning: deprecated directive: '%token_table', use '%token-table' [-Wdeprecated]
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## ---------------------------- ##
|
|
## Unput's effect on locations. ##
|
|
## ---------------------------- ##
|
|
dnl When the scanner detects a deprecated construct, it unputs the correct
|
|
dnl version, but it should *not* have any impact on the scanner cursor. If it
|
|
dnl does, the locations of directives on the same line become erroneous.
|
|
|
|
AT_SETUP([[Unput's effect on locations]])
|
|
|
|
AT_KEYWORDS([[deprec]])
|
|
|
|
AT_DATA_GRAMMAR([[input.y]],
|
|
[[
|
|
%glr-parser
|
|
%expect_rr 42 %expect_rr 42
|
|
%expect_rr 42
|
|
%error_verbose %error_verbose
|
|
%error_verbose
|
|
%% exp: '0'
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input.y]], [[1]], [[]],
|
|
[[input.y:11.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
|
|
input.y:11.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
|
|
input.y:12.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
|
|
input.y:13.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
|
|
input.y:13.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
|
|
input.y:13.11-21: error: %define variable 'parse.error' redefined
|
|
input.y:13-6: previous definition
|
|
input.y:14.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
|
|
input.y:14.11-21: error: %define variable 'parse.error' redefined
|
|
input.y:13.11-21: previous definition
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
## -------------------------- ##
|
|
## Non-deprecated directives. ##
|
|
## -------------------------- ##
|
|
|
|
AT_SETUP([[Non-deprecated directives]])
|
|
|
|
AT_KEYWORDS([[deprec]])
|
|
|
|
AT_DATA_GRAMMAR([[input.y]],
|
|
[[
|
|
%default-prec
|
|
%error-verbose
|
|
%expect-rr 42
|
|
%file-prefix "foo"
|
|
%file-prefix
|
|
"bar"
|
|
%fixed-output-files
|
|
%name-prefix "foo"
|
|
%no-default-prec
|
|
%no-lines
|
|
%output "foo"
|
|
%pure-parser
|
|
%token-table
|
|
%% exp : '0'
|
|
]])
|
|
|
|
AT_BISON_CHECK([[input.y]], [[0]], [[]],
|
|
[[input.y: warning: %expect-rr applies only to GLR parsers [-Wother]
|
|
]])
|
|
|
|
AT_CLEANUP
|
|
|
|
|
|
## -------------------- ##
|
|
## Cannot type action. ##
|
|
## -------------------- ##
|
|
|
|
AT_SETUP([[Cannot type action]])
|
|
|
|
AT_DATA_GRAMMAR([[input.y]],
|
|
[[%%
|
|
exp: <int> {}
|
|
]])
|
|
|
|
AT_BISON_CHECK([[-fcaret input.y]], [[0]], [[]],
|
|
[[input.y:10.6-13: warning: only midrule actions can be typed: int [-Wother]
|
|
exp: <int> {}
|
|
^^^^^^^^
|
|
]])
|
|
|
|
AT_CLEANUP
|