X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e14c68313b82fa4b2f2fd8df5937e3945b488b04..f038e56cdc211396f54f138e95693d0906d6fafa:/tests/input.at diff --git a/tests/input.at b/tests/input.at index bb036c38..4d7308c1 100644 --- a/tests/input.at +++ b/tests/input.at @@ -1,6 +1,6 @@ # Checking the Bison scanner. -*- Autotest -*- -# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, -# Inc. + +# Copyright (C) 2002-2013 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -20,6 +20,63 @@ AT_BANNER([[Input Processing.]]) # Mostly test that we are robust to mistakes. +## ---------------- ## +## Invalid inputs. ## +## ---------------- ## + +AT_SETUP([Invalid inputs]) + +AT_DATA([input.y], +[[\000\001\002\377? +%% +? +default: 'a' } +%& +%a-does-not-exist +%- +%{ +]]) +AT_CHECK([[$PERL -pi -e 's/\\(\d{3})/chr(oct($1))/ge' input.y || exit 77]]) + +AT_BISON_CHECK([input.y], [1], [], +[[input.y:1.1-2: error: invalid characters: '\0\001\002\377?' +input.y:3.1: error: invalid character: '?' +input.y:4.14: error: invalid character: '}' +input.y:5.1: error: invalid character: '%' +input.y:5.2: error: invalid character: '&' +input.y:6.1-17: error: invalid directive: '%a-does-not-exist' +input.y:7.1: error: invalid character: '%' +input.y:7.2: error: invalid character: '-' +input.y:8.1-9.0: error: missing '%}' at end of file +input.y:8.1-9.0: error: syntax error, unexpected %{...%} +]]) + +AT_CLEANUP + + +AT_SETUP([Invalid inputs with {}]) + +# We used to SEGV here. See +# http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html + +AT_DATA([input.y], +[[ +%destructor +%initial-action +%lex-param +%parse-param +%printer +%union +]]) + +AT_BISON_CHECK([input.y], [1], [], +[[input.y:3.1-15: error: syntax error, unexpected %initial-action, expecting {...} +]]) + +AT_CLEANUP + + + ## ------------ ## ## Invalid $n. ## ## ------------ ## @@ -32,9 +89,13 @@ exp: { $$ = $1 ; }; exp: { @$ = @1 ; }; ]]) -AT_BISON_CHECK([input.y], [1], [], -[[input.y:2.13-14: integer out of range: `$1' -input.y:3.13-14: integer out of range: `@1' +AT_BISON_CHECK([-fcaret input.y], [1], [], +[[input.y:2.13-14: error: integer out of range: '$1' + exp: { $$ = $1 ; }; + ^^ +input.y:3.13-14: error: integer out of range: '@1' + exp: { @$ = @1 ; }; + ^^ ]]) AT_CLEANUP @@ -53,26 +114,35 @@ AT_DATA([input.y], %% exp: foo { $$; } foo { $2; } foo | foo - | /* Empty. */ + | /* empty. */ ; ]]) -AT_BISON_CHECK([input.y], [1], [], -[[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type -input.y:5.24-25: $2 of `exp' has no declared type -input.y:5.6-32: warning: type clash on default action: != <> -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_BISON_CHECK([-fcaret input.y], [1], [], +[[input.y:5.12-13: error: $$ for the midrule at $2 of 'exp' has no declared type + exp: foo { $$; } foo { $2; } foo + ^^ +input.y:5.24-25: error: $2 of 'exp' has no declared type + exp: foo { $$; } foo { $2; } foo + ^^ +input.y:5.6-32: warning: type clash on default action: != <> [-Wother] + exp: foo { $$; } foo { $2; } foo + ^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:6.6-8: warning: type clash on default action: != <> [-Wother] + | foo + ^^^ +input.y:7.5: warning: empty rule for typed nonterminal, and no action [-Wother] + | /* empty. */ + ^ ]]) AT_CLEANUP # _AT_UNUSED_VALUES_DECLARATIONS() -# -------------------------------------------- +# -------------------------------- # Generate the token, type, and destructor # declarations for the unused values tests. - m4_define([_AT_UNUSED_VALUES_DECLARATIONS], [[[%token INT; %type a b c d e f g h i j k l; @@ -80,15 +150,11 @@ m4_define([_AT_UNUSED_VALUES_DECLARATIONS], # AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES) -# ------------------------------------------------------------------ -# Generate a grammar to test unused values, -# compile it, run it. If DECLARATIONS_AFTER -# is set, then the token, type, and destructor -# declarations are generated after the rules -# rather than before. If CHECK_MIDRULE_VALUES -# is set, then --warnings=midrule-values is -# set. - +# ---------------------------------------------------------------- +# Generate a grammar to test unused values, compile it, run it. If +# DECLARATIONS_AFTER is set, then the token, type, and destructor +# declarations are generated after the rules rather than before. If +# CHECK_MIDRULE_VALUES is set, then --warnings=midrule-values is set. m4_define([AT_CHECK_UNUSED_VALUES], [AT_DATA([input.y], m4_ifval($1, [ @@ -97,16 +163,16 @@ 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' 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[ }; +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 { }; @@ -117,42 +183,109 @@ l: INT | INT { $$ = $1; } INT { $$ = $2 + $< _AT_UNUSED_VALUES_DECLARATIONS]) ) -AT_BISON_CHECK(m4_ifval($2, [ --warnings=midrule-values ])[ input.y], [0], [], -[[input.y:11.10-32: warning: unset value: $]$[ -input.y:11.10-32: warning: unused value: $]1[ -input.y:11.10-32: warning: unused value: $]3[ -input.y:11.10-32: warning: unused value: $]5[ -input.y:12.9: warning: empty rule for typed nonterminal, and no action -]]m4_ifval($2, [[[input.y:13.14-19: warning: unset value: $$ -input.y:13.25-39: warning: unset value: $$ -]]])[[input.y:13.10-59: warning: unset value: $]$[ -input.y:13.10-59: warning: unused value: $]3[ -input.y:13.10-59: warning: unused value: $]5[ -]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$ -]]])[[input.y:14.10-47: warning: unset value: $]$[ -input.y:14.10-47: warning: unused value: $]3[ -input.y:14.10-47: warning: unused value: $]5[ -input.y:15.10-36: warning: unset value: $]$[ -input.y:15.10-36: warning: unused value: $]3[ -input.y:15.10-36: warning: unused value: $]5[ -input.y:17.10-58: warning: unset value: $]$[ -input.y:17.10-58: warning: unused value: $]1[ -]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[ -]]])[[input.y:17.10-58: warning: unused value: $]3[ -]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[ -]]])[[input.y:17.10-58: warning: unused value: $]5[ -input.y:18.10-72: warning: unset value: $]$[ -input.y:18.10-72: warning: unused value: $]1[ -input.y:18.10-72: warning: unused value: $]3[ -]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[ -]]])[[input.y:18.10-72: warning: unused value: $]5[ -]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[ -]]])[[input.y:21.10-68: warning: unset value: $]$[ -input.y:21.10-68: warning: unused value: $]1[ -input.y:21.10-68: warning: unused value: $]2[ -]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[ -]]]))]) - +AT_BISON_CHECK(m4_ifval($2, [--warnings=midrule-values ])[-fcaret input.y], + [0], [], +[[input.y:11.10-32: warning: unset value: $][$ [-Wother] + a: INT | INT { } INT { } INT { }; + ^^^^^^^^^^^^^^^^^^^^^^^ +input.y:11.10-12: warning: unused value: $][1 [-Wother] + a: INT | INT { } INT { } INT { }; + ^^^ +input.y:11.18-20: warning: unused value: $][3 [-Wother] + a: INT | INT { } INT { } INT { }; + ^^^ +input.y:11.26-28: warning: unused value: $][5 [-Wother] + a: INT | INT { } INT { } INT { }; + ^^^ +input.y:12.9: warning: empty rule for typed nonterminal, and no action [-Wother] + b: INT | /* empty */; + ^ +]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $][$ [-Wmidrule-values] + c: INT | INT { $][1; } INT { $2; } INT { $4; }; + ^^^^^^^ +input.y:13.26-41: warning: unset value: $][$ [-Wmidrule-values] + c: INT | INT { $][1; } INT { $2; } INT { $4; }; + ^^^^^^^^^^^^^^^^ +]]])[[input.y:13.10-62: warning: unset value: $][$ [-Wother] + c: INT | INT { $][1; } INT { $2; } INT { $4; }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:13.22-24: warning: unused value: $][3 [-Wother] + c: INT | INT { $][1; } INT { $2; } INT { $4; }; + ^^^ +input.y:13.43-45: warning: unused value: $][5 [-Wother] + c: INT | INT { $][1; } INT { $2; } INT { $4; }; + ^^^ +]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $][$ [-Wmidrule-values] + d: INT | INT { } INT { $][1; } INT { $2; }; + ^^^ +]]])[[input.y:14.10-49: warning: unset value: $][$ [-Wother] + d: INT | INT { } INT { $][1; } INT { $2; }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:14.18-20: warning: unused value: $][3 [-Wother] + d: INT | INT { } INT { $][1; } INT { $2; }; + ^^^ +input.y:14.30-32: warning: unused value: $][5 [-Wother] + d: INT | INT { } INT { $][1; } INT { $2; }; + ^^^ +input.y:15.10-37: warning: unset value: $][$ [-Wother] + e: INT | INT { } INT { } INT { $][1; }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:15.18-20: warning: unused value: $][3 [-Wother] + e: INT | INT { } INT { } INT { $][1; }; + ^^^ +input.y:15.27-29: warning: unused value: $][5 [-Wother] + e: INT | INT { } INT { } INT { $][1; }; + ^^^ +input.y:17.10-58: warning: unset value: $][$ [-Wother] + g: INT | INT { $$; } INT { $$; } INT { }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:17.10-12: warning: unused value: $][1 [-Wother] + g: INT | INT { $$; } INT { $$; } INT { }; + ^^^ +]]m4_ifval($2, [[[input.y:17.14-29: warning: unused value: $][2 [-Wmidrule-values] + g: INT | INT { $$; } INT { $$; } INT { }; + ^^^^^^^^^^^^^^^^ +]]])[[input.y:17.31-33: warning: unused value: $][3 [-Wother] + g: INT | INT { $$; } INT { $$; } INT { }; + ^^^ +]]m4_ifval($2, [[[input.y:17.35-50: warning: unused value: $][4 [-Wmidrule-values] + g: INT | INT { $$; } INT { $$; } INT { }; + ^^^^^^^^^^^^^^^^ +]]])[[input.y:17.52-54: warning: unused value: $][5 [-Wother] + g: INT | INT { $$; } INT { $$; } INT { }; + ^^^ +input.y:18.10-72: warning: unset value: $][$ [-Wother] + h: INT | INT { $$; } INT { $$ = $2; } INT { }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:18.10-12: warning: unused value: $][1 [-Wother] + h: INT | INT { $$; } INT { $$ = $2; } INT { }; + ^^^ +input.y:18.31-33: warning: unused value: $][3 [-Wother] + h: INT | INT { $$; } INT { $$ = $2; } INT { }; + ^^^ +]]m4_ifval($2, [[[input.y:18.35-64: warning: unused value: $][4 [-Wmidrule-values] + h: INT | INT { $$; } INT { $$ = $2; } INT { }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +]]])[[input.y:18.66-68: warning: unused value: $][5 [-Wother] + h: INT | INT { $$; } INT { $$ = $2; } INT { }; + ^^^ +]]m4_ifval($2, [[[input.y:20.18-37: warning: unused value: $][3 [-Wmidrule-values] + j: INT | INT INT { $$ = 1; } { $][$ = $][1 + $][2; }; + ^^^^^^^^^^^^^^^^^^^^ +]]])[[input.y:21.10-68: warning: unset value: $][$ [-Wother] + k: INT | INT INT { $$; } { $$ = $3; } { }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:21.10-12: warning: unused value: $][1 [-Wother] + k: INT | INT INT { $$; } { $$ = $3; } { }; + ^^^ +input.y:21.14-16: warning: unused value: $][2 [-Wother] + k: INT | INT INT { $$; } { $$ = $3; } { }; + ^^^ +]]m4_ifval($2, [[[input.y:21.35-64: warning: unused value: $][4 [-Wmidrule-values] + k: INT | INT INT { $$; } { $$ = $3; } { }; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +]]])) +]) ## --------------- ## ## Unused values. ## @@ -182,53 +315,101 @@ AT_SETUP([Default %printer and %destructor redeclared]) AT_DATA([[input.y]], [[%destructor { destroy ($$); } <*> <*> -%printer { destroy ($$); } <*> <*> +%printer { print ($$); } <*> <*> %destructor { destroy ($$); } <*> -%printer { destroy ($$); } <*> +%printer { print ($$); } <*> %destructor { destroy ($$); } <> <> -%printer { destroy ($$); } <> <> +%printer { print ($$); } <> <> %destructor { destroy ($$); } <> -%printer { destroy ($$); } <> +%printer { print ($$); } <> %% start: ; %destructor { destroy ($$); } <*>; -%printer { destroy ($$); } <*>; +%printer { print ($$); } <*>; %destructor { destroy ($$); } <>; -%printer { destroy ($$); } <>; +%printer { print ($$); } <>; ]]) -AT_BISON_CHECK([input.y], [1], [], -[[input.y:1.13-29: redeclaration for default tagged %destructor -input.y:1.13-29: previous declaration -input.y:2.10-26: redeclaration for default tagged %printer -input.y:2.10-26: previous declaration -input.y: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_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:7.13-29: error: %destructor redeclaration for <> + %destructor { destroy ($$); } <> <> + ^^^^^^^^^^^^^^^^^ +input.y:7.13-29: previous declaration + %destructor { destroy ($$); } <> <> + ^^^^^^^^^^^^^^^^^ +input.y:8.10-24: error: %printer redeclaration for <> + %printer { print ($$); } <> <> + ^^^^^^^^^^^^^^^ +input.y:8.10-24: previous declaration + %printer { print ($$); } <> <> + ^^^^^^^^^^^^^^^ +input.y:10.13-29: error: %destructor redeclaration for <> + %destructor { destroy ($$); } <> + ^^^^^^^^^^^^^^^^^ +input.y:7.13-29: previous declaration + %destructor { destroy ($$); } <> <> + ^^^^^^^^^^^^^^^^^ +input.y:11.10-24: error: %printer redeclaration for <> + %printer { print ($$); } <> + ^^^^^^^^^^^^^^^ +input.y:8.10-24: previous declaration + %printer { print ($$); } <> <> + ^^^^^^^^^^^^^^^ +input.y:17.13-29: error: %destructor redeclaration for <*> + %destructor { destroy ($$); } <*>; + ^^^^^^^^^^^^^^^^^ +input.y:4.13-29: previous declaration + %destructor { destroy ($$); } <*> + ^^^^^^^^^^^^^^^^^ +input.y:18.10-24: error: %printer redeclaration for <*> + %printer { print ($$); } <*>; + ^^^^^^^^^^^^^^^ +input.y:5.10-24: previous declaration + %printer { print ($$); } <*> + ^^^^^^^^^^^^^^^ +input.y:20.13-29: error: %destructor redeclaration for <> + %destructor { destroy ($$); } <>; + ^^^^^^^^^^^^^^^^^ +input.y:10.13-29: previous declaration + %destructor { destroy ($$); } <> + ^^^^^^^^^^^^^^^^^ +input.y:21.10-24: error: %printer redeclaration for <> + %printer { print ($$); } <>; + ^^^^^^^^^^^^^^^ +input.y:11.10-24: previous declaration + %printer { print ($$); } <> + ^^^^^^^^^^^^^^^ ]]) AT_CLEANUP @@ -242,40 +423,165 @@ AT_SETUP([Per-type %printer and %destructor redeclared]) AT_DATA([[input.y]], [[%destructor { destroy ($$); } -%printer { destroy ($$); } +%printer { print ($$); } %destructor { destroy ($$); } -%printer { destroy ($$); } +%printer { print ($$); } %% start: ; %destructor { destroy ($$); } ; -%printer { destroy ($$); } ; +%printer { print ($$); } ; ]]) AT_BISON_CHECK([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 +[[input.y:4.13-29: error: %destructor redeclaration for +input.y:1.13-29: previous declaration +input.y:4.13-29: error: %destructor redeclaration for +input.y:4.13-29: previous declaration +input.y:5.10-24: error: %printer redeclaration for +input.y:2.10-24: previous declaration +input.y:5.10-24: error: %printer redeclaration for +input.y:5.10-24: previous declaration +input.y:11.13-29: error: %destructor redeclaration for +input.y:1.13-29: previous declaration +input.y:11.13-29: error: %destructor redeclaration for +input.y:4.13-29: previous declaration +input.y:12.10-24: error: %printer redeclaration for +input.y:5.10-24: previous declaration +input.y:12.10-24: error: %printer redeclaration for +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 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 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 tag1 +%type tag2 + +%printer { } +%destructor { } + +%% + +exp: tag1 { $1; } + | tag2 { $1; } + +tag2: "a" { $$; } +]]) + +AT_BISON_CHECK([input.y], [0], [], +[[input.y:4.22-28: warning: type is used, but is not associated to any symbol [-Wother] +input.y:5.25-31: warning: type 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 token1 +%token token2 +%token token3 +%token token4 +%token token51 token52 +%token token61 token62 +%token token7 + +%printer {} token1 +%destructor {} token2 +%printer {} token51 +%destructor {} token61 + +%printer {} token7 + +%printer {} +%destructor {} +%printer {} +%destructor {} + +%printer {} +%destructor {} + +%destructor {} + +%% +exp: "a";]], +[[input.y:16.13-19: warning: useless %printer for type [-Wother] +input.y:17.16-22: warning: useless %destructor for type [-Wother]]]) + +# If everybody is typed, <> is useless. +AT_TEST([[%type exp +%token 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. ## @@ -294,10 +600,16 @@ end: { } ; tagged: { } ; ]]) -AT_BISON_CHECK([input.y], [0], [], -[[input.y:6.8-45: warning: unset value: $$ -input.y:6.8-45: warning: unused value: $2 -input.y:7.6-8: warning: unset value: $$ +AT_BISON_CHECK([-fcaret input.y], [0], [], +[[input.y:6.8-45: warning: unset value: $$ [-Wother] + start: end end tagged tagged { $1; $3; } ; + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +input.y:6.12-14: warning: unused value: $2 [-Wother] + start: end end tagged tagged { $1; $3; } ; + ^^^ +input.y:7.6-8: warning: unset value: $$ [-Wother] + end: { } ; + ^^^ ]]) AT_DATA([[input.y]], @@ -312,8 +624,8 @@ tagged: { } ; ]]) AT_BISON_CHECK([input.y], [0], [], -[[input.y:6.8-45: warning: unused value: $4 -input.y:8.9-11: warning: unset value: $$ +[[input.y:6.23-28: warning: unused value: $4 [-Wother] +input.y:8.9-11: warning: unset value: $$ [-Wother] ]]) AT_CLEANUP @@ -335,10 +647,16 @@ start: end end { $1; } ; end: { } ; ]]) -AT_BISON_CHECK([input.y], [0], [], -[[input.y:6.8-22: warning: unset value: $$ -input.y:6.8-22: warning: unused value: $2 -input.y:7.6-8: warning: unset value: $$ +AT_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 @@ -367,15 +685,31 @@ AT_DATA([input.y], exp: foo; ]]) -AT_BISON_CHECK([input.y], [1], [], -[[input.y:8.7-11: %type redeclaration for foo -input.y:3.7-11: previous declaration -input.y:10.13-17: %destructor redeclaration for foo -input.y:5.13-17: previous declaration -input.y:9.10-14: %printer redeclaration for foo -input.y:4.10-14: previous declaration -input.y:11.1-5: %left redeclaration for foo -input.y:6.1-5: previous declaration +AT_BISON_CHECK([-fcaret input.y], [1], [], +[[input.y:8.7-11: error: %type redeclaration for foo + %type "foo" + ^^^^^ +input.y:3.7-11: previous declaration + %type foo + ^^^^^ +input.y:10.13-17: error: %destructor redeclaration for foo + %destructor {baz} "foo" + ^^^^^ +input.y:5.13-17: previous declaration + %destructor {bar} foo + ^^^^^ +input.y:9.10-14: error: %printer redeclaration for foo + %printer {baz} "foo" + ^^^^^ +input.y:4.10-14: previous declaration + %printer {bar} foo + ^^^^^ +input.y:11.1-5: error: %left redeclaration for foo + %left "foo" + ^^^^^ +input.y:6.1-5: previous declaration + %left foo + ^^^^^ ]]) AT_CLEANUP @@ -391,18 +725,20 @@ AT_CLEANUP AT_SETUP([Torturing the Scanner]) - +AT_BISON_OPTION_PUSHDEFS AT_DATA([input.y], []) AT_BISON_CHECK([input.y], [1], [], -[[input.y:1.1: syntax error, unexpected end of file +[[input.y:1.1: error: syntax error, unexpected end of file ]]) AT_DATA([input.y], [{} ]) -AT_BISON_CHECK([input.y], [1], [], -[[input.y:1.1-2: syntax error, unexpected {...} +AT_BISON_CHECK([-fcaret input.y], [1], [], +[[input.y:1.1-2: error: syntax error, unexpected {...} + {} + ^^ ]]) @@ -442,6 +778,7 @@ char apostrophe = '\''; #include #include +#include %} /* %{ and %} can be here too. */ @@ -468,8 +805,8 @@ char quote[] = "@:>@@:>@,"; %} %{ -static void yyerror (const char *s); -static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ %} %type '@<:@' @@ -501,7 +838,7 @@ value_as_yystype (value val) res.ival = val; return res; } - +]AT_YYERROR_DEFINE[ static int yylex (void) { @@ -509,17 +846,10 @@ yylex (void) #output "; /* " */ static size_t toknum; - if (! (toknum < sizeof input)) - abort (); + assert (toknum < sizeof input); yylval = value_as_yystype (input[toknum]); return input[toknum++]; } - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} ]]) # Pacify Emacs'font-lock-mode: " @@ -529,17 +859,13 @@ AT_DATA([main.c], #include "input.h" int yyparse (void); - -int -main (void) -{ - return yyparse (); -} +]AT_MAIN_DEFINE[ ]]) +AT_BISON_OPTION_POPDEFS AT_BISON_CHECK([-d -v -o input.c input.y]) -AT_COMPILE([input.o], [-c input.c]) -AT_COMPILE([main.o], [-c main.c]) +AT_COMPILE([input.o]) +AT_COMPILE([main.o]) AT_COMPILE([input], [input.o main.o]) AT_PARSER_CHECK([./input], 0, [[[@<:@], @@ -582,7 +908,7 @@ m4_define([AT_CHECK_REQUIRE], AT_DATA_GRAMMAR([input.y], [[%require "$1"; %% -empty_file:; +empty_file: /* empty */; ]]) AT_BISON_CHECK([-o input.c input.y], $2, [], ignore) AT_CLEANUP @@ -600,8 +926,8 @@ AT_CHECK_REQUIRE(100.0, 63) AT_SETUP([String aliases for character tokens]) -# Bison once thought a character token and its alias were different symbols -# with the same user token number. +# Bison once thought a character token and its alias were different +# symbols with the same user token number. AT_DATA_GRAMMAR([input.y], [[%token 'a' "a" @@ -615,16 +941,120 @@ 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 -Wno-error input.y], [], [], +[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc] +input.y:20.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc] +]]) + +# So warn about them. +AT_BISON_CHECK([-Wyacc input.y], [], [], +[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc] +input.y:20.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc] +]]) + +# Dashes are fine for GNU Bison. +AT_BISON_CHECK([-o input.c input.y]) + +# Make sure we don't export silly token identifiers with periods or dashes. +AT_COMPILE([input.o]) + + +# 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. +# 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 @@ -648,13 +1078,23 @@ start: ; %destructor { free ($$) ]]) -AT_BISON_CHECK([-o input.c input.y], 1, [], -[[input.y:1.10-2.0: missing `"' at end of line -input.y:4.10-5.0: missing `'' at end of line -input.y:14.11-15.0: missing `'' at end of line -input.y:16.11-17.0: missing `"' at end of line -input.y:19.13-20.0: missing `}' at end of file -input.y:20.1: syntax error, unexpected end of file +AT_BISON_CHECK([-fcaret -o input.c input.y], 1, [], +[[input.y:1.10-2.0: error: missing '"' at end of line + %token A "a + ^^ +input.y:4.10-5.0: error: missing "'" at end of line + %token C '1 + ^^ +input.y:14.11-15.0: error: missing "'" at end of line + %type 'a + ^^ +input.y:16.11-17.0: error: missing '"' at end of line + %type "a + ^^ +input.y:19.13-20.0: error: missing '}' at end of file + %destructor { free ($$) + ^^^^^^^^^^^ +input.y:20.1: error: syntax error, unexpected end of file ]]) AT_CLEANUP @@ -666,8 +1106,8 @@ AT_CLEANUP AT_SETUP([%start after first rule]) -# Bison once complained that a %start after the first rule was a redeclaration -# of the start symbol. +# Bison once complained that a %start after the first rule was a +# redeclaration of the start symbol. AT_DATA([input.y], [[%% @@ -696,7 +1136,27 @@ PREC: ; ]]) AT_BISON_CHECK([input.y], [1], [], -[[input.y:3.1-4: rule given for PREC, which is a token +[[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 @@ -716,11 +1176,11 @@ AT_DATA([input-c.y], %% start: ; ]]) -AT_BISON_CHECK([[input-c.y]], [0], [], -[[input-c.y:1.7: warning: %code qualifier `q' is not used -input-c.y:2.7-9: warning: %code qualifier `bad' is not used -input-c.y:3.7-9: warning: %code qualifier `bad' is not used -input-c.y:4.7-12: warning: %code qualifier `format' is not used +AT_BISON_CHECK([[input-c.y]], [[1]], [], +[[input-c.y:1.7: 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], @@ -730,10 +1190,10 @@ AT_DATA([input-c-glr.y], %% start: ; ]]) -AT_BISON_CHECK([[input-c-glr.y]], [0], [], -[[input-c-glr.y:1.7: warning: %code qualifier `q' is not used -input-c-glr.y:2.7-9: warning: %code qualifier `bad' is not used -input-c-glr.y:3.8-10: warning: %code qualifier `bad' is not used +AT_BISON_CHECK([[input-c-glr.y]], [[1]], [], +[[input-c-glr.y:1.7: 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], @@ -743,10 +1203,10 @@ AT_DATA([input-c++.y], %% start: ; ]]) -AT_BISON_CHECK([[input-c++.y]], [0], [], -[[input-c++.y:1.7: warning: %code qualifier `q' is not used -input-c++.y:2.7-9: warning: %code qualifier `bad' is not used -input-c++.y:3.8: warning: %code qualifier `q' is not used +AT_BISON_CHECK([[input-c++.y]], [[1]], [], +[[input-c++.y:1.7: 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], @@ -756,10 +1216,10 @@ AT_DATA([input-c++-glr.y], %% start: ; ]]) -AT_BISON_CHECK([[input-c++-glr.y]], [0], [], -[[input-c++-glr.y:1.7-9: warning: %code qualifier `bad' is not used -input-c++-glr.y:2.7: warning: %code qualifier `q' is not used -input-c++-glr.y:3.7: warning: %code qualifier `q' is not used +AT_BISON_CHECK([[input-c++-glr.y]], [[1]], [], +[[input-c++-glr.y:1.7-9: 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], @@ -769,10 +1229,10 @@ AT_DATA([special-char-@@.y], %% start: ; ]]) -AT_BISON_CHECK([[special-char-@@.y]], [0], [], -[[special-char-@@.y:1.7-9: warning: %code qualifier `bad' is not used -special-char-@@.y:2.7: warning: %code qualifier `q' is not used -special-char-@@.y:3.7: warning: %code qualifier `q' is not used +AT_BISON_CHECK([[special-char-@@.y]], [[1]], [], +[[special-char-@@.y:1.7-9: 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], @@ -782,10 +1242,10 @@ AT_DATA([special-char-@:>@.y], %% start: ; ]]) -AT_BISON_CHECK([[special-char-@:>@.y]], [0], [], -[[special-char-@:>@.y:1.7-9: warning: %code qualifier `bad' is not used -special-char-@:>@.y:2.7: warning: %code qualifier `q' is not used -special-char-@:>@.y:3.7: warning: %code qualifier `q' is not used +AT_BISON_CHECK([[special-char-@:>@.y]], [[1]], [], +[[special-char-@:>@.y:1.7-9: 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 @@ -797,7 +1257,7 @@ AT_CLEANUP AT_SETUP([%define errors]) -AT_DATA([input.y], +AT_DATA([input-redefined.y], [[%define var "value1" %define var "value1" %define var "value2" @@ -807,42 +1267,87 @@ AT_DATA([input.y], start: ; ]]) -AT_BISON_CHECK([[input.y]], [0], [], -[[input.y:2.9-11: warning: %define variable `var' redefined -input.y:1.9-11: warning: previous definition -input.y:3.10-12: warning: %define variable `var' redefined -input.y:2.9-11: warning: previous definition -input.y:1.9-11: warning: %define variable `var' is not used -input.y:2.9-11: warning: %define variable `var' is not used -input.y:3.10-12: warning: %define variable `var' is not used -input.y:4.9-16: warning: %define variable `special1' is not used -input.y:5.9-16: warning: %define variable `special2' is not used +AT_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: ; +]]) + +AT_BISON_CHECK([[input-unused.y]], [[1]], [], +[[input-unused.y:1.9-11: error: %define variable 'var' is not used ]]) AT_CLEANUP -## ------------------- ## -## %define, --define. ## -## ------------------- ## +## ----------------------------------- ## +## %define, --define, --force-define. ## +## ----------------------------------- ## -AT_SETUP([%define, --define]) +AT_SETUP([[%define, --define, --force-define]]) -AT_DATA([input.y], -[[%define var "value1" +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: ; +]]) +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: ; ]]) +AT_BISON_CHECK([[-Dvar=cmd-d input-dg.y]], [[1]], [], +[[input-dg.y:1.9-11: error: %define variable 'var' redefined +:2: previous definition +]]) -AT_BISON_CHECK([[input.y -DFOO -DFOO -Dvar=value]], [0], [], -[[:4: warning: %define variable `FOO' redefined -:3: warning: previous definition -input.y:1.9-11: warning: %define variable `var' redefined -:5: warning: previous definition -:3: warning: %define variable `FOO' is not used -:4: warning: %define variable `FOO' is not used -:5: warning: %define variable `var' is not used -input.y:1.9-11: warning: %define variable `var' is not used +AT_DATA([[input-dg.y]], +[[%define var "gram" +%% +start: ; +]]) +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" + ^^^ +:3: previous definition +]]) + +AT_DATA([[input-unused.y]], +[[%% +start: ; +]]) +AT_BISON_CHECK([[-Dunused-d -Funused-f input-unused.y]], [[1]], [], +[[:2: error: %define variable 'unused-d' is not used +:3: error: %define variable 'unused-f' is not used ]]) AT_CLEANUP @@ -851,7 +1356,7 @@ AT_CLEANUP ## %define Boolean variables. ## ## --------------------------- ## -AT_SETUP([[%define Boolean variables]]) +AT_SETUP([["%define" Boolean variables]]) AT_DATA([Input.y], [[%language "Java" @@ -862,7 +1367,7 @@ start: ; ]]) AT_BISON_CHECK([[Input.y]], [1], [], -[[Input.y:2.9-14: invalid value for %define Boolean variable `public' +[[Input.y:2.9-14: error: invalid value for %define Boolean variable 'public' ]]) AT_CLEANUP @@ -871,16 +1376,79 @@ AT_CLEANUP ## %define enum variables. ## ## ------------------------ ## -AT_SETUP([[%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 api.push_pull "neither" +[[%define lr.default-reduction bogus %% start: ; ]]) +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' +]]) -AT_BISON_CHECK([[input.y]], [1], [], -[[input.y:1.9-21: invalid value for %define variable `api.push_pull': `neither' +# Back-end. +AT_DATA([[input.y]], +[[%define api.push-pull neither +%% +start: ; +]]) +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: ; +]]) +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 @@ -904,17 +1472,17 @@ AT_DATA([[input.y]], start: ; ]]) -AT_BISON_CHECK([[input.y]], [0], [], -[[input.y:1.9-16: warning: %define variable `api.pure' is not used +AT_BISON_CHECK([[input.y]], [[1]], [], +[[input.y:1.9-16: error: %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_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 @@ -932,37 +1500,460 @@ m4_define([AT_CHECK_NAMESPACE_ERROR], AT_DATA([[input.y]], [[%language "C++" %defines -%define namespace "]$1[" +%define api.namespace "]$1[" %% start: ; ]]) AT_BISON_CHECK([[input.y]], [1], [], [m4_foreach([b4_arg], m4_dquote(m4_shift($@)), -[[input.y:3.9-17: ]b4_arg[ +[[input.y:3.9-21: error: ]b4_arg[ ]])]) ]) AT_CHECK_NAMESPACE_ERROR([[]], [[namespace reference is empty]]) -AT_CHECK_NAMESPACE_ERROR([[ ]], +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:: ::bar]], +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:: ::]], +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:: ]], +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 +# . + +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: ; +]]) + +# parse.lac.* options are useless if LAC isn't actually activated. +AT_BISON_CHECK([[-Dparse.lac.es-capacity-initial=1 input.y]], + [[1]], [], +[[:2: error: %define variable 'parse.lac.es-capacity-initial' is not used +]]) +AT_BISON_CHECK([[-Dparse.lac.memory-trace=full input.y]], + [[1]], [], +[[:2: error: %define variable 'parse.lac.memory-trace' is not used +]]) + +AT_CLEANUP + +## --------------------------------------------- ## +## -Werror is not affected by -Wnone and -Wall. ## +## --------------------------------------------- ## + +AT_SETUP([[-Werror is not affected by -Wnone and -Wall]]) + +AT_DATA([[input.y]], +[[%% +foo-bar: ; +]]) + +# -Werror is not enabled by -Wall or equivalent. +AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]], +[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc] +]]) +AT_BISON_CHECK([[-W input.y]], [[0]], [[]], +[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc] +]]) +AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]], +[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc] +]]) + +# -Werror is not disabled by -Wnone or equivalent. +AT_BISON_CHECK([[-Werror,none,yacc input.y]], [[1]], [[]], [[stderr]]) +AT_CHECK([[sed 's/^.*bison:/bison:/' stderr]], [[0]], +[[input.y:2.1-7: error: POSIX Yacc forbids dashes in symbol names: foo-bar [-Werror=yacc] +]]) +[mv stderr experr] +AT_BISON_CHECK([[-Werror,no-all,yacc input.y]], [[1]], [[]], [[experr]]) + +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], [:2]) +AT_TEST([%name-prefix "bar"], [-Dapi.prefix=foo], [:2]) +AT_TEST([%define api.prefix foo], [-p bar], [input.y:1.9-18]) + +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 exp +%token 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