X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/31b2b07ef765e9e8734ca273308094804fcc9763..a2ea208d82fdd67257d16e11b93ab17a8c48d452:/tests/input.at?ds=sidebyside diff --git a/tests/input.at b/tests/input.at index 4b66d32e..d0bdcbdd 100644 --- a/tests/input.at +++ b/tests/input.at @@ -1,5 +1,6 @@ # Checking the Bison scanner. -*- Autotest -*- -# Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. +# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 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 @@ -25,7 +26,7 @@ AT_BANNER([[Input Processing.]]) ## Invalid $n. ## ## ------------ ## -AT_SETUP([Invalid \$n and @n]) +AT_SETUP([Invalid $n and @n]) AT_DATA([input.y], [[%% @@ -48,87 +49,298 @@ AT_CLEANUP AT_SETUP([Type Clashes]) AT_DATA([input.y], -[[%token foo +[[%union { int bar; } +%token foo %type <bar> exp %% -exp: foo {} foo +exp: foo { $$; } foo { $2; } foo | foo | /* Empty. */ ; ]]) -AT_CHECK([bison input.y], [], [], -[[input.y:4.6-15: warning: type clash on default action: <bar> != <> -input.y:5.6-8: warning: type clash on default action: <bar> != <> -input.y:6.5: warning: empty rule for typed nonterminal, and no action +AT_CHECK([bison input.y], [1], [], +[[input.y:5.12-13: $$ for the midrule at $2 of `exp' has no declared type +input.y:5.24-25: $2 of `exp' has no declared type +input.y:5.6-32: warning: type clash on default action: <bar> != <> +input.y:6.6-8: warning: type clash on default action: <bar> != <> +input.y:7.5: warning: empty rule for typed nonterminal, and no action ]]) AT_CLEANUP -## --------------- ## -## Unused values. ## -## --------------- ## +# _AT_UNUSED_VALUES_DECLARATIONS() +# -------------------------------------------- +# Generate the token, type, and destructor +# declarations for the unused values tests. -AT_SETUP([Unused values]) +m4_define([_AT_UNUSED_VALUES_DECLARATIONS], +[[[%token <integer> INT; +%type <integer> a b c d e f g h i j k l; +%destructor { destroy ($$); } INT a b c d e f g h i j k l;]]]) -AT_DATA([input.y], -[[%token <integer> INT -%type <integer> a b c d e f g h i j k l -%destructor { destroy ($$); } INT a b c d e f g h i j k l -%% + +# AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES) +# ------------------------------------------------------------------ +# Generate a grammar to test unused values, +# compile it, run it. If DECLARATIONS_AFTER +# is set, then the token, type, and destructor +# declarations are generated after the rules +# rather than before. If CHECK_MIDRULE_VALUES +# is set, then --warnings=midrule-values is +# set. + +m4_define([AT_CHECK_UNUSED_VALUES], +[AT_DATA([input.y], +m4_ifval($1, [ + + +], [_AT_UNUSED_VALUES_DECLARATIONS +])[[%% start: - 'a' a { $2 } | 'b' b { $2 } | 'c' c { $2 } | 'd' d { $2 } | 'e' e { $2 } -| 'f' f { $2 } | 'g' g { $2 } | 'h' h { $2 } | 'i' i { $2 } | 'j' j { $2 } -| 'k' k { $2 } | 'l' l { $2 } + 'a' 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 { } INT { }; -d: INT | INT { } INT { $1 } INT { }; -e: INT | INT { } INT { } INT { $1 }; -f: INT | INT { } INT { } INT { $$ = $1 + $3 + $5; }; -g: INT | INT { $$ } INT { $$ } INT { }; -h: INT | INT { $$ } INT { $$ = $2 } INT { }; -i: INT | INT INT { } { $$ = $1 + $2; }; -j: INT | INT INT { $<integer>$ = 1; } { $$ = $1 + $2; }; -k: INT | INT INT { $$; } { $$ = $3; } { }; -l: INT | INT { $$ = $1; } INT { $$ = $2 + $3; } INT { $$ = $4 + $5; }; - -]]) - -AT_CHECK([bison input.y], [], [], -[[input.y:11.10-32: warning: unset value: $$ -input.y:11.10-32: warning: unused value: $1 -input.y:11.10-32: warning: unused value: $3 -input.y:11.10-32: warning: unused value: $5 +c: INT | INT { $]1[ } INT { $<integer>2 } INT { $<integer>4 }; +d: INT | INT { } INT { $]1[ } INT { $<integer>2 }; +e: INT | INT { } INT { } INT { $]1[ }; +f: INT | INT { } INT { } INT { $]$[ = $]1[ + $]3[ + $]5[; }; +g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { }; +h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { }; +i: INT | INT INT { } { $]$[ = $]1[ + $]2[; }; +j: INT | INT INT { $<integer>$ = 1; } { $]$[ = $]1[ + $]2[; }; +k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { }; +l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<integer>3; } INT { $<integer>$ = $<integer>4 + $<integer>5; };]]m4_ifval($1, [ +_AT_UNUSED_VALUES_DECLARATIONS]) +) + +AT_CHECK([bison]m4_ifval($2, [ --warnings=midrule-values ])[ input.y], [0], [], +[[input.y:11.10-32: warning: unset value: $]$[ +input.y:11.10-32: warning: unused value: $]1[ +input.y:11.10-32: warning: unused value: $]3[ +input.y:11.10-32: warning: unused value: $]5[ input.y:12.9: warning: empty rule for typed nonterminal, and no action -input.y:13.10-35: warning: unset value: $$ -input.y:13.10-35: warning: unused value: $3 -input.y:13.10-35: warning: unused value: $5 -input.y:14.10-35: warning: unset value: $$ -input.y:14.10-35: warning: unused value: $3 -input.y:14.10-35: warning: unused value: $5 -input.y:15.10-36: warning: unset value: $$ -input.y:15.10-36: warning: unused value: $3 -input.y:15.10-36: warning: unused value: $5 -input.y:17.10-38: warning: unset value: $$ -input.y:17.10-38: warning: unused value: $1 -input.y:17.10-38: warning: unused value: $2 -input.y:17.10-38: warning: unused value: $3 -input.y:17.10-38: warning: unused value: $4 -input.y:17.10-38: warning: unused value: $5 -input.y:18.10-43: warning: unset value: $$ -input.y:18.10-43: warning: unused value: $1 -input.y:18.10-43: warning: unused value: $3 -input.y:18.10-43: warning: unused value: $4 -input.y:18.10-43: warning: unused value: $5 -input.y:20.10-55: warning: unused value: $3 -input.y:21.10-41: warning: unset value: $$ -input.y:21.10-41: warning: unused value: $1 -input.y:21.10-41: warning: unused value: $2 -input.y:21.10-41: warning: unused value: $4 +]]m4_ifval($2, [[[input.y:13.14-19: warning: unset value: $$ +input.y:13.25-39: warning: unset value: $$ +]]])[[input.y:13.10-59: warning: unset value: $]$[ +input.y:13.10-59: warning: unused value: $]3[ +input.y:13.10-59: warning: unused value: $]5[ +]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$ +]]])[[input.y:14.10-47: warning: unset value: $]$[ +input.y:14.10-47: warning: unused value: $]3[ +input.y:14.10-47: warning: unused value: $]5[ +input.y:15.10-36: warning: unset value: $]$[ +input.y:15.10-36: warning: unused value: $]3[ +input.y:15.10-36: warning: unused value: $]5[ +input.y:17.10-58: warning: unset value: $]$[ +input.y:17.10-58: warning: unused value: $]1[ +]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[ +]]])[[input.y:17.10-58: warning: unused value: $]3[ +]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[ +]]])[[input.y:17.10-58: warning: unused value: $]5[ +input.y:18.10-72: warning: unset value: $]$[ +input.y:18.10-72: warning: unused value: $]1[ +input.y:18.10-72: warning: unused value: $]3[ +]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[ +]]])[[input.y:18.10-72: warning: unused value: $]5[ +]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[ +]]])[[input.y:21.10-68: warning: unset value: $]$[ +input.y:21.10-68: warning: unused value: $]1[ +input.y:21.10-68: warning: unused value: $]2[ +]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[ +]]]))]) + + +## --------------- ## +## Unused values. ## +## --------------- ## + +AT_SETUP([Unused values]) +AT_CHECK_UNUSED_VALUES +AT_CHECK_UNUSED_VALUES(, [1]) +AT_CLEANUP + + +## ------------------------------------------ ## +## Unused values before symbol declarations. ## +## ------------------------------------------ ## + +AT_SETUP([Unused values before symbol declarations]) +AT_CHECK_UNUSED_VALUES([1]) +AT_CHECK_UNUSED_VALUES([1], [1]) +AT_CLEANUP + + +## --------------------------------------------- ## +## Default %printer and %destructor redeclared. ## +## --------------------------------------------- ## + +AT_SETUP([Default %printer and %destructor redeclared]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } <*> <*> +%printer { destroy ($$); } <*> <*> + +%destructor { destroy ($$); } <*> +%printer { destroy ($$); } <*> + +%destructor { destroy ($$); } <> <> +%printer { destroy ($$); } <> <> + +%destructor { destroy ($$); } <> +%printer { destroy ($$); } <> + +%% + +start: ; + +%destructor { destroy ($$); } <*>; +%printer { destroy ($$); } <*>; + +%destructor { destroy ($$); } <>; +%printer { destroy ($$); } <>; +]]) + +AT_CHECK([bison input.y], [1], [], +[[input.y:1.13-29: redeclaration for default tagged %destructor +input.y:1.13-29: previous declaration +input.y:2.10-26: redeclaration for default tagged %printer +input.y:2.10-26: previous declaration +input.y:4.13-29: redeclaration for default tagged %destructor +input.y:1.13-29: previous declaration +input.y:5.10-26: redeclaration for default tagged %printer +input.y:2.10-26: previous declaration +input.y:7.13-29: redeclaration for default tagless %destructor +input.y:7.13-29: previous declaration +input.y:8.10-26: redeclaration for default tagless %printer +input.y:8.10-26: previous declaration +input.y:10.13-29: redeclaration for default tagless %destructor +input.y:7.13-29: previous declaration +input.y:11.10-26: redeclaration for default tagless %printer +input.y:8.10-26: previous declaration +input.y:17.13-29: redeclaration for default tagged %destructor +input.y:4.13-29: previous declaration +input.y:18.10-26: redeclaration for default tagged %printer +input.y:5.10-26: previous declaration +input.y:20.13-29: redeclaration for default tagless %destructor +input.y:10.13-29: previous declaration +input.y:21.10-26: redeclaration for default tagless %printer +input.y:11.10-26: previous declaration +]]) + +AT_CLEANUP + + +## ---------------------------------------------- ## +## Per-type %printer and %destructor redeclared. ## +## ---------------------------------------------- ## + +AT_SETUP([Per-type %printer and %destructor redeclared]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } <field1> <field2> +%printer { destroy ($$); } <field1> <field2> + +%destructor { destroy ($$); } <field1> <field1> +%printer { destroy ($$); } <field2> <field2> + +%% + +start: ; + +%destructor { destroy ($$); } <field2> <field1>; +%printer { destroy ($$); } <field2> <field1>; +]]) + +AT_CHECK([bison input.y], [1], [], +[[input.y:4.13-29: %destructor redeclaration for <field1> +input.y:1.13-29: previous declaration +input.y:4.13-29: %destructor redeclaration for <field1> +input.y:4.13-29: previous declaration +input.y:5.10-26: %printer redeclaration for <field2> +input.y:2.10-26: previous declaration +input.y:5.10-26: %printer redeclaration for <field2> +input.y:5.10-26: previous declaration +input.y:11.13-29: %destructor redeclaration for <field1> +input.y:4.13-29: previous declaration +input.y:11.13-29: %destructor redeclaration for <field2> +input.y:1.13-29: previous declaration +input.y:12.10-26: %printer redeclaration for <field1> +input.y:2.10-26: previous declaration +input.y:12.10-26: %printer redeclaration for <field2> +input.y:5.10-26: previous declaration +]]) + +AT_CLEANUP + + +## ---------------------------------------- ## +## Unused values with default %destructor. ## +## ---------------------------------------- ## + +AT_SETUP([Unused values with default %destructor]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } <> +%type <tag> tagged + +%% + +start: end end tagged tagged { $<tag>1; $3; } ; +end: { } ; +tagged: { } ; +]]) + +AT_CHECK([bison input.y], [0], [], +[[input.y:6.8-45: warning: unset value: $$ +input.y:6.8-45: warning: unused value: $2 +input.y:7.6-8: warning: unset value: $$ +]]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } <*> +%type <tag> tagged + +%% + +start: end end tagged tagged { $<tag>1; $3; } ; +end: { } ; +tagged: { } ; +]]) + +AT_CHECK([bison input.y], [0], [], +[[input.y:6.8-45: warning: unused value: $4 +input.y:8.9-11: warning: unset value: $$ +]]) + +AT_CLEANUP + + +## ----------------------------------------- ## +## Unused values with per-type %destructor. ## +## ----------------------------------------- ## + +AT_SETUP([Unused values with per-type %destructor]) + +AT_DATA([[input.y]], +[[%destructor { destroy ($$); } <field1> +%type <field1> start end + +%% + +start: end end { $1; } ; +end: { } ; +]]) + +AT_CHECK([bison input.y], [0], [], +[[input.y:6.8-22: warning: unset value: $$ +input.y:6.8-22: warning: unused value: $2 +input.y:7.6-8: warning: unset value: $$ ]]) AT_CLEANUP @@ -159,13 +371,13 @@ exp: foo; AT_CHECK([bison input.y], [1], [], [[input.y:8.7-11: %type redeclaration for foo -input.y:3.7-11: first declaration +input.y:3.7-11: previous declaration input.y:10.13-17: %destructor redeclaration for foo -input.y:5.13-17: first declaration +input.y:5.13-17: previous declaration input.y:9.10-14: %printer redeclaration for foo -input.y:4.10-14: first declaration +input.y:4.10-14: previous declaration input.y:11.1-5: %left redeclaration for foo -input.y:6.1-5: first declaration +input.y:6.1-5: previous declaration ]]) AT_CLEANUP @@ -184,7 +396,7 @@ AT_SETUP([Torturing the Scanner]) AT_DATA([input.y], []) AT_CHECK([bison input.y], [1], [], -[[input.y:1.0: syntax error, unexpected end of file +[[input.y:1.1: syntax error, unexpected end of file ]]) @@ -192,7 +404,7 @@ AT_DATA([input.y], [{} ]) AT_CHECK([bison input.y], [1], [], -[[input.y:1.0-1: syntax error, unexpected {...} +[[input.y:1.1-2: syntax error, unexpected {...} ]]) @@ -231,6 +443,7 @@ char apostrophe = '\''; #endif #include <stdio.h> +#include <stdlib.h> %} /* %{ and %} can be here too. */ @@ -294,11 +507,14 @@ value_as_yystype (value val) static int yylex (void) { - static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\ + static char const input[] = "@<:@\1\2$@{@oline@__@&t@oline__\ #output "; /* " */ - yylval = value_as_yystype (*input); - return *input++; + static size_t toknum; + if (! (toknum < sizeof input)) + abort (); + yylval = value_as_yystype (input[toknum]); + return input[toknum++]; } static void @@ -378,3 +594,251 @@ AT_CHECK_REQUIRE(1.0, 0) AT_CHECK_REQUIRE(AT_PACKAGE_VERSION, 0) ## FIXME: Some day augment this version number. AT_CHECK_REQUIRE(100.0, 63) + + +## ------------------------------------- ## +## String aliases for character tokens. ## +## ------------------------------------- ## + +AT_SETUP([String aliases for character tokens]) + +# Bison once thought a character token and its alias were different symbols +# with the same user token number. + +AT_DATA_GRAMMAR([input.y], +[[%token 'a' "a" +%% +start: 'a'; +%% +]]) + +AT_CHECK([bison -o input.c input.y]) + +AT_CLEANUP + + +## --------------------- ## +## Unclosed constructs. ## +## --------------------- ## + +AT_SETUP([Unclosed constructs]) + +# Bison's scan-gram.l once forgot to STRING_FINISH some unclosed constructs, so +# they were prepended to whatever it STRING_GROW'ed next. It also threw them +# away rather than returning them to the parser. The effect was confusing +# subsequent error messages. + +AT_DATA([input.y], +[[%token A "a +%token B "b" +%token AB "ab" // Used to complain that "ab" was already used. +%token C '1 +%token TWO "2" +%token TICK_TWELVE "'12" // Used to complain that "'12" was already used. + +%% + +start: ; + +// Used to report a syntax error because it didn't see any kind of symbol +// identifier. +%type <f> 'a +; +%type <f> "a +; +// Used to report a syntax error because it didn't see braced code. +%destructor { free ($$) +]]) + +AT_CHECK([bison -o input.c input.y], 1, [], +[[input.y:1.10-2.0: missing `"' at end of line +input.y:4.10-5.0: missing `'' at end of line +input.y:14.11-15.0: missing `'' at end of line +input.y:16.11-17.0: missing `"' at end of line +input.y:19.13-20.0: missing `}' at end of file +input.y:20.1: syntax error, unexpected end of file +]]) + +AT_CLEANUP + + +## ------------------------- ## +## %start after first rule. ## +## ------------------------- ## + +AT_SETUP([%start after first rule]) + +# Bison once complained that a %start after the first rule was a redeclaration +# of the start symbol. + +AT_DATA([input.y], +[[%% +false_start: ; +start: false_start ; +%start start; +]]) + +AT_CHECK([bison -o input.c input.y]) + +AT_CLEANUP + + +## --------------------- ## +## %prec takes a token. ## +## --------------------- ## + +AT_SETUP([%prec takes a token]) + +# Bison once allowed %prec sym where sym was a nonterminal. + +AT_DATA([input.y], +[[%% +start: PREC %prec PREC ; +PREC: ; +]]) + +AT_CHECK([bison input.y], [1], [], +[[input.y:3.1-4: rule given for PREC, which is a token +]]) + +AT_CLEANUP + + +## -------------------------------- ## +## Reject unused %code qualifiers. ## +## -------------------------------- ## + +AT_SETUP([Reject unused %code qualifiers]) + +AT_DATA([input-c.y], +[[%code q {} +%code bad {} +%code bad {} +%code format {} +%% +start: ; +]]) +AT_CHECK([[bison input-c.y]], [0], [], +[[input-c.y:1.7: warning: %code qualifier `q' is not used +input-c.y:2.7-9: warning: %code qualifier `bad' is not used +input-c.y:3.7-9: warning: %code qualifier `bad' is not used +input-c.y:4.7-12: warning: %code qualifier `format' is not used +]]) + +AT_DATA([input-c-glr.y], +[[%code q {} +%code bad {} + %code bad {} +%% +start: ; +]]) +AT_CHECK([[bison input-c-glr.y]], [0], [], +[[input-c-glr.y:1.7: warning: %code qualifier `q' is not used +input-c-glr.y:2.7-9: warning: %code qualifier `bad' is not used +input-c-glr.y:3.8-10: warning: %code qualifier `bad' is not used +]]) + +AT_DATA([input-c++.y], +[[%code q {} +%code bad {} + %code q {} +%% +start: ; +]]) +AT_CHECK([[bison input-c++.y]], [0], [], +[[input-c++.y:1.7: warning: %code qualifier `q' is not used +input-c++.y:2.7-9: warning: %code qualifier `bad' is not used +input-c++.y:3.8: warning: %code qualifier `q' is not used +]]) + +AT_DATA([input-c++-glr.y], +[[%code bad {} +%code q {} +%code q {} +%% +start: ; +]]) +AT_CHECK([[bison input-c++-glr.y]], [0], [], +[[input-c++-glr.y:1.7-9: warning: %code qualifier `bad' is not used +input-c++-glr.y:2.7: warning: %code qualifier `q' is not used +input-c++-glr.y:3.7: warning: %code qualifier `q' is not used +]]) + +AT_DATA([special-char-@@.y], +[[%code bad {} +%code q {} +%code q {} +%% +start: ; +]]) +AT_CHECK([[bison special-char-@@.y]], [0], [], +[[special-char-@@.y:1.7-9: warning: %code qualifier `bad' is not used +special-char-@@.y:2.7: warning: %code qualifier `q' is not used +special-char-@@.y:3.7: warning: %code qualifier `q' is not used +]]) + +AT_DATA([special-char-@:>@.y], +[[%code bad {} +%code q {} +%code q {} +%% +start: ; +]]) +AT_CHECK([[bison special-char-@:>@.y]], [0], [], +[[special-char-@:>@.y:1.7-9: warning: %code qualifier `bad' is not used +special-char-@:>@.y:2.7: warning: %code qualifier `q' is not used +special-char-@:>@.y:3.7: warning: %code qualifier `q' is not used +]]) + +AT_CLEANUP + + +## ---------------- ## +## %define errors. ## +## ---------------- ## + +AT_SETUP([%define errors]) + +AT_DATA([input.y], +[[%define var "value1" +%define var "value1" + %define var "value2" +%define special1 "@:>@" +%define special2 "@<:@" +%% +start: ; +]]) + +AT_CHECK([[bison input.y]], [0], [], +[[input.y:2.9-11: warning: %define variable `var' redefined +input.y:1.9-11: warning: previous definition +input.y:3.10-12: warning: %define variable `var' redefined +input.y:2.9-11: warning: previous definition +input.y:1.9-11: warning: %define variable `var' is not used +input.y:2.9-11: warning: %define variable `var' is not used +input.y:3.10-12: warning: %define variable `var' is not used +input.y:4.9-16: warning: %define variable `special1' is not used +input.y:5.9-16: warning: %define variable `special2' is not used +]]) + +AT_CLEANUP + +## --------------------------- ## +## Boolean %define variables. ## +## --------------------------- ## + +AT_SETUP([Boolean %define variables]) + +AT_DATA([Input.y], +[[%language "Java" +%define public "maybe" +%define parser_class_name "Input" +%% +start: ; +]]) + +AT_CHECK([[bison Input.y]], [1], [], +[[Input.y:2.9-14: invalid value for %define boolean variable `public' +]]) + +AT_CLEANUP