X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/99880de508cd84d0ed8fa23c24a7337c21f23059..965537bc543191a048b6afb2404c878f06ab877f:/tests/regression.at diff --git a/tests/regression.at b/tests/regression.at index d58c8bdf..1c5ccbbf 100644 --- a/tests/regression.at +++ b/tests/regression.at @@ -1,5 +1,7 @@ # Bison Regressions. -*- Autotest -*- -# Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + +# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 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 @@ -13,18 +15,73 @@ # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -# 02111-1307, USA. +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +# 02110-1301, USA. AT_BANNER([[Regression tests.]]) -## ------------------------- ## -## Early token definitions. ## -## ------------------------- ## +## ------------------ ## +## Trivial grammars. ## +## ------------------ ## + +AT_SETUP([Trivial grammars]) + +AT_DATA_GRAMMAR([input.y], +[[%{ +void yyerror (char const *); +int yylex (void); +#define YYSTYPE int * +%} + +%error-verbose + +%% + +program: 'x'; +]]) + +AT_CHECK([bison -o input.c input.y]) +AT_COMPILE([input.o], [-c input.c]) +AT_COMPILE([input.o], [-DYYDEBUG -c input.c]) + +AT_CLEANUP + + + +## ----------------- ## +## YYSTYPE typedef. ## +## ----------------- ## + +AT_SETUP([YYSTYPE typedef]) + +AT_DATA_GRAMMAR([input.y], +[[%{ +void yyerror (char const *); +int yylex (void); +typedef union { char const *val; } YYSTYPE; +%} + +%type program + +%% + +program: { $$ = ""; }; +]]) + +AT_CHECK([bison -o input.c input.y]) +AT_COMPILE([input.o], [-c input.c]) + +AT_CLEANUP + + + +## ------------------------------------- ## +## Early token definitions with --yacc. ## +## ------------------------------------- ## -AT_SETUP([Early token definitions]) +AT_SETUP([Early token definitions with --yacc]) # Found in GCJ: they expect the tokens to be defined before the user # prologue, so that they can use the token definitions in it. @@ -50,6 +107,49 @@ exp: MY_TOKEN; %% ]]) +AT_CHECK([bison -y -o input.c input.y]) +AT_COMPILE([input.o], [-c input.c]) + +AT_CLEANUP + + + +## ---------------------------------------- ## +## Early token definitions without --yacc. ## +## ---------------------------------------- ## + + +AT_SETUP([Early token definitions without --yacc]) + +# Found in GCJ: they expect the tokens to be defined before the user +# prologue, so that they can use the token definitions in it. + +AT_DATA_GRAMMAR([input.y], +[[%{ +#include +void yyerror (const char *s); +int yylex (void); +void print_my_token (void); +%} + +%union +{ + int val; +}; +%{ +void +print_my_token (void) +{ + enum yytokentype my_token = MY_TOKEN; + printf ("%d\n", my_token); +} +%} +%token MY_TOKEN +%% +exp: MY_TOKEN; +%% +]]) + AT_CHECK([bison -o input.c input.y]) AT_COMPILE([input.o], [-c input.c]) @@ -298,6 +398,26 @@ input.y:5.1-17: invalid directive: `%a-does-not-exist' input.y:6.1: invalid character: `%' input.y:6.2: invalid character: `-' input.y:7.1-8.0: missing `%}' at end of file +input.y:7.1-8.0: syntax error, unexpected %{...%} +]]) + +AT_CLEANUP + + +AT_SETUP([Invalid inputs with {}]) + +AT_DATA([input.y], +[[ +%destructor +%initial-action +%lex-param +%parse-param +%printer +%union +]]) + +AT_CHECK([bison input.y], [1], [], +[[input.y:3.1-15: syntax error, unexpected %initial-action, expecting {...} ]]) AT_CLEANUP @@ -314,20 +434,45 @@ AT_SETUP([Token definitions]) # Bison managed, when fed with `%token 'f' "f"' to #define 'f'! AT_DATA_GRAMMAR([input.y], [%{ +#include void yyerror (const char *s); int yylex (void); %} -[%token MYEOF 0 "end of file" +[%error-verbose +%token MYEOF 0 "end of file" %token 'a' "a" -%token b "b" -%token c 'c' -%token 'd' d +%token B_TOKEN "b" +%token C_TOKEN 'c' +%token 'd' D_TOKEN +%token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!" +%% +exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"; %% -exp: "a"; +void +yyerror (char const *s) +{ + fprintf (stderr, "%s\n", s); +} + +int +yylex (void) +{ + return SPECIAL; +} + +int +main (void) +{ + return yyparse (); +} ]]) AT_CHECK([bison -o input.c input.y]) -AT_COMPILE([input.o], [-c input.c]) +AT_COMPILE([input]) +AT_DATA([experr], +[[syntax error, unexpected "\\'?\"\a\b\f\n\r\t\v\001\201\001\201?\?!", expecting a +]]) +AT_PARSER_CHECK([./input], 1, [], [experr]) AT_CLEANUP @@ -344,7 +489,9 @@ AT_DATA_GRAMMAR([input.y], void yyerror (const char *s); int yylex (void); %} -[%% +[%token QUOTES "\"" +%token TICK "'" +%% exp: '\'' "\'" | '\"' "\"" @@ -535,7 +682,7 @@ AT_CLEANUP # # It used to be wrong on yydefact only: # -# static const short int yydefact[] = +# static const yytype_uint8 yydefact[] = # { # - 2, 0, 1, 0, 0, 2, 3, 2, 5, 4, # + 2, 0, 1, 0, 0, 0, 3, 2, 5, 4, @@ -555,6 +702,10 @@ statement: struct_stat; struct_stat: /* empty. */ | if else; if: "if" "const" "then" statement; else: "else" statement; +%token IF "if"; +%token CONST "const"; +%token THEN "then"; +%token ELSE "else"; %% ]]) @@ -565,7 +716,7 @@ AT_CHECK([bison -v -o input.c input.y]) [sed -n 's/ *$//;/^static const.*\[\] =/,/^}/p' input.c >tables.c] AT_CHECK([[cat tables.c]], 0, -[[static const unsigned char yytranslate[] = +[[static const yytype_uint8 yytranslate[] = { 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, @@ -595,16 +746,16 @@ AT_CHECK([[cat tables.c]], 0, 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, 5, 6 }; -static const unsigned char yyprhs[] = +static const yytype_uint8 yyprhs[] = { 0, 0, 3, 5, 6, 9, 14 }; -static const yysigned_char yyrhs[] = +static const yytype_int8 yyrhs[] = { 8, 0, -1, 9, -1, -1, 10, 11, -1, 3, 4, 5, 8, -1, 6, 8, -1 }; -static const unsigned char yyrline[] = +static const yytype_uint8 yyrline[] = { 0, 2, 2, 3, 3, 4, 5 }; @@ -613,45 +764,45 @@ static const char *const yytname[] = "$end", "error", "$undefined", "\"if\"", "\"const\"", "\"then\"", "\"else\"", "$accept", "statement", "struct_stat", "if", "else", 0 }; -static const unsigned short int yytoknum[] = +static const yytype_uint16 yytoknum[] = { 0, 256, 257, 258, 259, 260, 261 }; -static const unsigned char yyr1[] = +static const yytype_uint8 yyr1[] = { 0, 7, 8, 9, 9, 10, 11 }; -static const unsigned char yyr2[] = +static const yytype_uint8 yyr2[] = { 0, 2, 1, 0, 2, 4, 2 }; -static const unsigned char yydefact[] = +static const yytype_uint8 yydefact[] = { 3, 0, 0, 2, 0, 0, 1, 3, 4, 3, 6, 5 }; -static const yysigned_char yydefgoto[] = +static const yytype_int8 yydefgoto[] = { -1, 2, 3, 4, 8 }; -static const yysigned_char yypact[] = +static const yytype_int8 yypact[] = { -2, -1, 4, -8, 0, 2, -8, -2, -8, -2, -8, -8 }; -static const yysigned_char yypgoto[] = +static const yytype_int8 yypgoto[] = { -8, -7, -8, -8, -8 }; -static const unsigned char yytable[] = +static const yytype_uint8 yytable[] = { 10, 1, 11, 5, 6, 0, 7, 9 }; -static const yysigned_char yycheck[] = +static const yytype_int8 yycheck[] = { 7, 3, 9, 4, 0, -1, 6, 5 }; -static const unsigned char yystos[] = +static const yytype_uint8 yystos[] = { 0, 3, 8, 9, 10, 4, 0, 6, 11, 5, 8, 8 @@ -750,7 +901,7 @@ static int yylex (AT_LALR1_CC_IF([int *lval], [void])) [{ static int toknum = 0; - int tokens[] = + static int tokens[] = { ':', -1 }; @@ -790,3 +941,221 @@ AT_CLEANUP AT_CHECK_DANCER() AT_CHECK_DANCER([%glr-parser]) AT_CHECK_DANCER([%skeleton "lalr1.cc"]) + + +## ------------------------------------------ ## +## Diagnostic that expects two alternatives. ## +## ------------------------------------------ ## + + +# _AT_DATA_EXPECT2_Y(BISON-OPTIONS) +# -------------------------------- +m4_define([_AT_DATA_EXPECT2_Y], +[AT_DATA_GRAMMAR([expect2.y], +[%{ +static int yylex (AT_LALR1_CC_IF([int *], [void])); +AT_LALR1_CC_IF([], +[#include +static void yyerror (const char *);]) +%} +$1 +%defines +%error-verbose +%token A 1000 +%token B + +%% +program: /* empty */ + | program e ';' + | program error ';'; + +e: e '+' t | t; +t: A | B; + +%% +AT_LALR1_CC_IF( +[/* A C++ error reporting function. */ +void +yy::parser::error (const location&, const std::string& m) +{ + std::cerr << m << std::endl; +} + +int +yyparse () +{ + yy::parser parser; + return parser.parse (); +} +], +[static void +yyerror (const char *s) +{ + fprintf (stderr, "%s\n", s); +}]) + +static int +yylex (AT_LALR1_CC_IF([int *lval], [void])) +[{ + static int toknum = 0; + static int tokens[] = + { + 1000, '+', '+', -1 + }; + ]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC. */])[ + return tokens[toknum++]; +}] + +int +main (void) +{ + return yyparse (); +} +]) +])# _AT_DATA_EXPECT2_Y + + +# AT_CHECK_EXPECT2(BISON-OPTIONS) +# ------------------------------ +# Generate the grammar, compile it, run it. +m4_define([AT_CHECK_EXPECT2], +[AT_SETUP([Expecting two tokens $1]) +AT_BISON_OPTION_PUSHDEFS([$1]) +_AT_DATA_EXPECT2_Y([$1]) +AT_CHECK([bison -o expect2.c expect2.y]) +AT_LALR1_CC_IF( + [AT_CHECK([bison -o expect2.cc expect2.y]) + AT_COMPILE_CXX([expect2])], + [AT_CHECK([bison -o expect2.c expect2.y]) + AT_COMPILE([expect2])]) +AT_PARSER_CHECK([./expect2], 1, [], +[syntax error, unexpected '+', expecting A or B +]) +AT_BISON_OPTION_POPDEFS +AT_CLEANUP +]) + +AT_CHECK_EXPECT2() +AT_CHECK_EXPECT2([%glr-parser]) +AT_CHECK_EXPECT2([%skeleton "lalr1.cc"]) + + + +## --------------------------------------------- ## +## Braced code in declaration in rules section. ## +## --------------------------------------------- ## + +AT_SETUP([Braced code in declaration in rules section]) + +# Bison once mistook braced code in a declaration in the rules section to be a +# rule action. + +AT_DATA_GRAMMAR([input.y], +[[%{ +#include +static void yyerror (char const *msg); +static int yylex (void); +%} + +%error-verbose + +%% + +start: + { + printf ("Bison would once convert this action to a midrule because of the" + " subsequent braced code.\n"); + } + ; + +%destructor { fprintf (stderr, "DESTRUCTOR\n"); } 'a'; +%printer { fprintf (yyoutput, "PRINTER"); } 'a'; + +%% + +static void +yyerror (char const *msg) +{ + fprintf (stderr, "%s\n", msg); +} + +static int +yylex (void) +{ + return 'a'; +} + +int +main (void) +{ + yydebug = 1; + return !yyparse (); +} +]]) + +AT_CHECK([bison -t -o input.c input.y]) +AT_COMPILE([input]) +AT_PARSER_CHECK([./input], 0, +[[Bison would once convert this action to a midrule because of the subsequent braced code. +]], +[[Starting parse +Entering state 0 +Reducing stack by rule 1 (line 22): +-> $$ = nterm start () +Stack now 0 +Entering state 1 +Reading a token: Next token is token 'a' (PRINTER) +syntax error, unexpected 'a', expecting $end +Error: popping nterm start () +Stack now 0 +Cleanup: discarding lookahead token 'a' (PRINTER) +DESTRUCTOR +Stack now 0 +]]) + +AT_CLEANUP + + + +## --------------------------------- ## +## String alias declared after use. ## +## --------------------------------- ## + +AT_SETUP([String alias declared after use]) + +# Bison once incorrectly asserted that the symbol number for either a token or +# its alias was the highest symbol number so far at the point of the alias +# declaration. That was true unless the declaration appeared after their first +# uses. + +AT_DATA([input.y], +[[%% +start: 'a' "A" 'b'; +%token 'a' "A"; +]]) + +AT_CHECK([bison -t -o input.c input.y]) + +AT_CLEANUP + + + +## --------------------------- ## +## Undeclared string literal. ## +## --------------------------- ## + +AT_SETUP([Undeclared string literal]) + +# Bison once allowed a string literal to be used in the grammar without any +# declaration assigning it as an alias of another token. + +AT_DATA([input.y], +[[%% +start: "abc"; +]]) + +AT_CHECK([bison -t -o input.c input.y], [1], [], +[[input.y:2.8-12: "abc" undeclared +]]) + +AT_CLEANUP