X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/5dac0025f6cef52c95cf1b8d04c5047980a73160..8f3596a6337cf30a3641967d450d1c9d77861edc:/tests/actions.at diff --git a/tests/actions.at b/tests/actions.at index 18140cec..bd71bbc8 100644 --- a/tests/actions.at +++ b/tests/actions.at @@ -1,5 +1,5 @@ # Executing Actions. -*- Autotest -*- -# Copyright 2001 Free Software Foundation, Inc. +# Copyright (C) 2001, 2002, 2003, 2004, 2005 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 @@ -13,8 +13,8 @@ # 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([[User Actions.]]) @@ -30,13 +30,13 @@ AT_SETUP([Mid-rule actions]) # action. AT_DATA_GRAMMAR([[input.y]], -[[%{ +[[%error-verbose +%debug +%{ # include # include static void yyerror (const char *msg); static int yylex (void); -# define YYDEBUG 1 -# define YYERROR_VERBOSE 1 %} %% exp: { putchar ('0'); } @@ -82,151 +82,6 @@ AT_CLEANUP -## ---------------------- ## -## Actions after errors. ## -## ---------------------- ## - -AT_SETUP([Actions after errors]) - - - -AT_DATA_GRAMMAR([[input.y]], -[[%{ -#include -#include - -static int yylex (void); -static void yyerror (char const *); - -#define YYDEBUG 1 -%} -%union { int ival; } -%type 'x' ';' thing line input - -%% -input: - /* Nothing. */ - { - $$ = 0; - printf ("input(%d): /* Nothing */\n", $$); - } -| line input /* Right recursive to load the stack so that popping at - EOF can be exercised. */ - { - $$ = 2; - printf ("input(%d): line(%d) input(%d)\n", $$, $1, $2); - } -; - -line: - thing thing thing ';' - { - $$ = $1; - printf ("line(%d): thing(%d) thing(%d) thing(%d) ';'(%d)\n", - $$, $1, $2, $3, $4); - } -| thing thing ';' - { - $$ = $1; - printf ("line(%d): thing(%d) thing(%d) ';'(%d)\n", $$, $1, $2, $3); - } -| thing ';' - { - $$ = $1; - printf ("line(%d): thing(%d) ';'(%d)\n", $$, $1, $2); - } -| error ';' - { - $$ = -1; - printf ("line(%d): error ';'(%d)\n", $$, $2); - } -; - -thing: - 'x' - { - $$ = $1; - printf ("thing(%d): 'x'(%d)\n", $$, $1); - } -; -%% -static size_t counter; - -static int -yylex (void) -{ - static char const input[] = - { - /* Exericise the discarding of stack top and input until `error' - can be reduced. */ - 'x', 'x', 'x', 'x', 'x', 'x', ';', - - /* Load the stack and provoke an error that cannot be caught by - the grammar, to check that the stack is cleared. */ - 'x', 'x', ';', - 'x', ';', - 'y' - }; - - if (counter < sizeof input) - { - yylval.ival = counter; - printf ("sending: '%c' (value = %d)\n", input[counter], yylval.ival); - return input[counter++]; - } - else - { - printf ("sending: EOF\n"); - return EOF; - } -} - -static void -yyerror (char const *msg) -{ - printf ("%lu: %s\n", (unsigned long int) counter, msg); -} - -int -main (void) -{ - yydebug = !!getenv ("YYDEBUG"); - return yyparse (); -} -]]) - -AT_CHECK([bison -o input.c input.y]) -AT_COMPILE([input]) -AT_PARSER_CHECK([./input], 1, -[[sending: 'x' (value = 0) -thing(0): 'x'(0) -sending: 'x' (value = 1) -thing(1): 'x'(1) -sending: 'x' (value = 2) -thing(2): 'x'(2) -sending: 'x' (value = 3) -4: syntax error -sending: 'x' (value = 4) -sending: 'x' (value = 5) -sending: ';' (value = 6) -line(-1): error ';'(6) -sending: 'x' (value = 7) -thing(7): 'x'(7) -sending: 'x' (value = 8) -thing(8): 'x'(8) -sending: ';' (value = 9) -line(7): thing(7) thing(8) ';'(9) -sending: 'x' (value = 10) -thing(10): 'x'(10) -sending: ';' (value = 11) -line(10): thing(10) ';'(11) -sending: 'y' (value = 12) -13: syntax error -sending: EOF -]]) - -AT_CLEANUP - ## ---------------- ## @@ -236,13 +91,14 @@ AT_CLEANUP AT_SETUP([Exotic Dollars]) AT_DATA_GRAMMAR([[input.y]], -[[%{ +[[%error-verbose +%debug +%{ # include # include static void yyerror (const char *msg); static int yylex (void); -# define YYDEBUG 1 -# define YYERROR_VERBOSE 1 +# define USE(Var) %} %union @@ -251,7 +107,7 @@ AT_DATA_GRAMMAR([[input.y]], }; %type a_1 a_2 a_5 - sum_of_the_five_previous_values + exp sum_of_the_five_previous_values %% exp: a_1 a_2 { $$ = 3; } { $$ = $3 + 1; } a_5 @@ -290,7 +146,11 @@ main (void) } ]]) -AT_CHECK([bison -d -v -o input.c input.y]) +AT_CHECK([bison -d -v -o input.c input.y], 0, [], +[input.y:30.6-34.5: warning: unused value: $1 +input.y:30.6-34.5: warning: unused value: $2 +input.y:30.6-34.5: warning: unused value: $5 +]) AT_COMPILE([input]) AT_PARSER_CHECK([./input], 0, [[15 @@ -304,68 +164,92 @@ AT_CLEANUP ## Printers and Destructors. ## ## -------------------------- ## -# _AT_CHECK_PRINTER_AND_DESTRUCTOR($1, $2, $3, BISON-DIRECTIVE) -# ------------------------------------------------------------- +# _AT_CHECK_PRINTER_AND_DESTRUCTOR($1, $2, $3, $4, BISON-DIRECTIVE, UNION-FLAG) +# ----------------------------------------------------------------------------- m4_define([_AT_CHECK_PRINTER_AND_DESTRUCTOR], -[m4_if([$1$2$3], $[1]$[2]$[3], [], +[# Make sure complex $n work. +m4_if([$1$2$3], $[1]$[2]$[3], [], [m4_fatal([$0: Invalid arguments: $@])])dnl -AT_SETUP([Printers and Destructors: $4]) - -# Make sure complex $n work. - +# Be sure to pass all the %directives to this macro to have correct +# helping macros. So don't put any directly in the Bison file. +AT_BISON_OPTION_PUSHDEFS([$5]) AT_DATA_GRAMMAR([[input.y]], -[[$4 -%{ +[[%{ #include #include #include -static int yylex (void); -static void yyerror (const char *msg); -%} -%error-verbose -%debug -%verbose -%locations -%union +#define YYINITDEPTH 10 +#define YYMAXDEPTH 10 +]AT_LALR1_CC_IF( + [#define RANGE(Location) (Location).begin.line, (Location).end.line], + [#define RANGE(Location) (Location).first_line, (Location).last_line]) +[%} + +$5] +m4_ifval([$6], [%union { int ival; -} -%type 'x' thing line input +}]) +AT_LALR1_CC_IF([%define "global_tokens_and_yystype"]) +[ +%{ +]AT_LALR1_CC_IF([typedef yy::location YYLTYPE; + m4_ifval([$6], , [#define YYSTYPE int])]) +[static int yylex (]AT_LEX_FORMALS[); +]AT_LALR1_CC_IF([], [static void yyerror (const char *msg);]) +[%} + +]m4_ifval([$6], [%type '(' 'x' 'y' ')' ';' thing line input])[ -%printer { fprintf (yyout, "%d@%d", $$, @$.first_line); } - input line thing 'x' +%printer + { + ]AT_LALR1_CC_IF([debug_stream () << $$;], + [fprintf (yyoutput, "%d", $$)])[; + } + input line thing 'x' 'y' %destructor - { fprintf (stdout, "Freeing nterm input (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); } input %destructor - { fprintf (stdout, "Freeing nterm line (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); } line %destructor - { fprintf (stdout, "Freeing nterm thing (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); } thing %destructor - { fprintf (stdout, "Freeing token 'x' (%d@%d)\n", $$, @$.first_line); } + { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); } 'x' +%destructor + { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); } + 'y' + %% +/* + This grammar is made to exercise error recovery. + "Lines" starting with `(' support error recovery, with + ')' as synchronizing token. Lines starting with 'x' can never + be recovered from if in error. +*/ + input: /* Nothing. */ { $$ = 0; - printf ("input(%d@%d): /* Nothing */';'\n", $$, @$.first_line); + printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$)); } | line input /* Right recursive to load the stack so that popping at EOF can be exercised. */ { $$ = 2; - printf ("input(%d@%d): line(%d@%d) input(%d@%d)';'\n", - $$, @$.first_line, $1, @1.first_line, $2, @2.first_line); + printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2)); } ; @@ -373,27 +257,28 @@ line: thing thing thing ';' { $$ = $1; - printf ("line(%d@%d): thing(%d@%d) thing(%d@%d) thing(%d@%d) ';'\n", - $$, @$.first_line, $1, @1.first_line, $2, @2.first_line, - $3, @3.first_line); + printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), + $3, RANGE (@3), $4, RANGE (@4)); } -| thing thing ';' +| '(' thing thing ')' { $$ = $1; - printf ("line(%d@%d): thing(%d@%d) thing(%d@%d) ';'\n", - $$, @$.first_line, $1, @1.first_line, $2, @2.first_line); + printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), + $3, RANGE (@3), $4, RANGE (@4)); } -| thing ';' +| '(' thing ')' { $$ = $1; - printf ("line(%d@%d): thing(%d@%d) ';'\n", - $$, @$.first_line, $1, @1.first_line); + printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3)); } -| error ';' +| '(' error ')' { $$ = -1; - printf ("line(%d@%d): error(@%d) ';'\n", - $$, @$.first_line, @1.first_line); + printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3)); } ; @@ -401,115 +286,255 @@ thing: 'x' { $$ = $1; - printf ("thing(%d@%d): 'x'(%d@%d)\n", - $$, @$.first_line, $1, @1.first_line); + printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1)); } ; %% +/* Alias to ARGV[1]. */ +const char *source = 0; + static int -yylex (void) +yylex (]AT_LEX_FORMALS[) { - static const unsigned int input[] = - { - /* Exericise the discarding of stack top and input until `error' - can be reduced. */ - 'x', 'x', 'x', 'x', 'x', 'x', ';', - - /* Load the stack and provoke an error that cannot be caught by - the grammar, to check that the stack is cleared. */ - 'x', 'x', ';', - 'x', ';', - 'y' - }; static unsigned int counter = 0; - if (counter < (sizeof(input) / sizeof (input[0]))) - { - yylval.ival = counter; - /* As in BASIC, line numbers go from 10 to 10. */ - yylloc.first_line = 10 * counter; - printf ("sending: '%c' (value = %d, line %d)\n", - input[counter], yylval.ival, yylloc.first_line); - return (int) input[counter++]; - } + int c = ]AT_VAL[]m4_ifval([$6], [.ival])[ = counter++; + /* As in BASIC, line numbers go from 10 to 10. */ +]AT_LALR1_CC_IF( +[ AT_LOC.begin.line = AT_LOC.begin.column = 10 * c; + AT_LOC.end.line = AT_LOC.end.column = AT_LOC.begin.line + 9; +], +[ AT_LOC.first_line = AT_LOC.first_column = 10 * c; + AT_LOC.last_line = AT_LOC.last_column = AT_LOC.first_line + 9; +])[ + + if (source[c]) + printf ("sending: '%c'", source[c]); else - { - printf ("sending: EOF\n"); - return EOF; - } + printf ("sending: EOF"); + printf (" (%d@%d-%d)\n", c, RANGE (]AT_LOC[)); + return source[c]; } -static void -yyerror (const char *msg) +]AT_LALR1_CC_IF( +[/* A C++ error reporting function. */ +void +yy::parser::error (const location& l, const std::string& m) { - fprintf (stdout, "%d: %s\n", yylloc.first_line, msg); + printf ("%d-%d: %s\n", RANGE (l), m.c_str()); } +static bool yydebug; int -main (void) +yyparse () { + yy::parser parser; + parser.set_debug_level (yydebug); + return parser.parse (); +} +], +[static void +yyerror (const char *msg) +{ + printf ("%d-%d: %s\n", RANGE (yylloc), msg); +}])[ + +int +main (int argc, const char *argv[]) +{ + int status; yydebug = !!getenv ("YYDEBUG"); - if (yyparse ()) + assert (argc == 2); + source = argv[1]; + status = yyparse (); + switch (status) { - fprintf (stdout, "Parsing FAILED.\n"); - exit (1); + case 0: printf ("Successful parse.\n"); break; + case 1: printf ("Parsing FAILED.\n"); break; + default: printf ("Parsing FAILED (status %d).\n", status); break; } - fprintf (stdout, "Successful parse.\n"); - return 0; + return status; } ]]) -AT_CHECK([bison -o input.c input.y]) -AT_COMPILE([input]) -AT_PARSER_CHECK([./input], 1, -[[sending: 'x' (value = 0, line 0) -thing(0@0): 'x'(0@0) -sending: 'x' (value = 1, line 10) -thing(1@10): 'x'(1@10) -sending: 'x' (value = 2, line 20) -thing(2@20): 'x'(2@20) -sending: 'x' (value = 3, line 30) -30: syntax error, unexpected 'x', expecting ';' -Freeing nterm thing (2@20) -Freeing nterm thing (1@10) -Freeing nterm thing (0@0) -Freeing token 'x' (3@30) -sending: 'x' (value = 4, line 40) -Freeing token 'x' (4@40) -sending: 'x' (value = 5, line 50) -Freeing token 'x' (5@50) -sending: ';' (value = 6, line 60) -line(-1@50): error(@50) ';' -sending: 'x' (value = 7, line 70) -thing(7@70): 'x'(7@70) -sending: 'x' (value = 8, line 80) -thing(8@80): 'x'(8@80) -sending: ';' (value = 9, line 90) -line(7@70): thing(7@70) thing(8@80) ';' -sending: 'x' (value = 10, line 100) -thing(10@100): 'x'(10@100) -sending: ';' (value = 11, line 110) -line(10@100): thing(10@100) ';' -sending: 'y' (value = 12, line 120) -120: syntax error, unexpected $undefined, expecting $end or 'x' -sending: EOF -Freeing nterm line (10@100) -Freeing nterm line (7@70) -Freeing nterm line (-1@50) +AT_LALR1_CC_IF( + [AT_CHECK([bison -o input.cc input.y]) + AT_COMPILE_CXX([input])], + [AT_CHECK([bison -o input.c input.y]) + AT_COMPILE([input])]) + + +# Check the location of "empty" +# ----------------------------- +# I.e., epsilon-reductions, as in "(x)" which ends by reducing +# an empty "line" nterm. +# FIXME: This location is not satisfying. Depend on the lookahead? +AT_PARSER_CHECK([./input '(x)'], 0, +[[sending: '(' (0@0-9) +sending: 'x' (1@10-19) +thing (1@10-19): 'x' (1@10-19) +sending: ')' (2@20-29) +line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29) +sending: EOF (3@30-39) +input (0@29-29): /* Nothing */ +input (2@0-29): line (0@0-29) input (0@29-29) +Freeing nterm input (2@0-29) +Successful parse. +]]) + + +# Check locations in error recovery +# --------------------------------- +# '(y)' is an error, but can be recovered from. But what's the location +# of the error itself ('y'), and of the resulting reduction ('(error)'). +AT_PARSER_CHECK([./input '(y)'], 0, +[[sending: '(' (0@0-9) +sending: 'y' (1@10-19) +10-19: syntax error, unexpected 'y', expecting 'x' +Freeing token 'y' (1@10-19) +sending: ')' (2@20-29) +line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29) +sending: EOF (3@30-39) +input (0@29-29): /* Nothing */ +input (2@0-29): line (-1@0-29) input (0@29-29) +Freeing nterm input (2@0-29) +Successful parse. +]]) + + +# Syntax errors caught by the parser +# ---------------------------------- +# Exercise the discarding of stack top and input until `error' +# can be reduced. +# +# '(', 'x', 'x', 'x', 'x', 'x', ')', +# +# Load the stack and provoke an error that cannot be caught by the +# grammar, to check that the stack is cleared. And make sure the +# lookahead is freed. +# +# '(', 'x', ')', +# '(', 'x', ')', +# 'y' +AT_PARSER_CHECK([./input '(xxxxx)(x)(x)y'], 1, +[[sending: '(' (0@0-9) +sending: 'x' (1@10-19) +thing (1@10-19): 'x' (1@10-19) +sending: 'x' (2@20-29) +thing (2@20-29): 'x' (2@20-29) +sending: 'x' (3@30-39) +30-39: syntax error, unexpected 'x', expecting ')' +Freeing nterm thing (2@20-29) +Freeing nterm thing (1@10-19) +Freeing token 'x' (3@30-39) +sending: 'x' (4@40-49) +Freeing token 'x' (4@40-49) +sending: 'x' (5@50-59) +Freeing token 'x' (5@50-59) +sending: ')' (6@60-69) +line (-1@0-69): '(' (0@0-9) error (@10-59) ')' (6@60-69) +sending: '(' (7@70-79) +sending: 'x' (8@80-89) +thing (8@80-89): 'x' (8@80-89) +sending: ')' (9@90-99) +line (7@70-99): '(' (7@70-79) thing (8@80-89) ')' (9@90-99) +sending: '(' (10@100-109) +sending: 'x' (11@110-119) +thing (11@110-119): 'x' (11@110-119) +sending: ')' (12@120-129) +line (10@100-129): '(' (10@100-109) thing (11@110-119) ')' (12@120-129) +sending: 'y' (13@130-139) +input (0@129-129): /* Nothing */ +input (2@100-129): line (10@100-129) input (0@129-129) +input (2@70-129): line (7@70-99) input (2@100-129) +input (2@0-129): line (-1@0-69) input (2@70-129) +130-139: syntax error, unexpected 'y', expecting $end +Freeing nterm input (2@0-129) +Freeing token 'y' (13@130-139) Parsing FAILED. ]]) -AT_CLEANUP +# Check destruction upon stack overflow +# ------------------------------------- +# Upon stack overflow, all symbols on the stack should be destroyed. +# Only check for yacc.c. +AT_YACC_IF([ +AT_PARSER_CHECK([./input '(x)(x)(x)(x)(x)(x)(x)'], 2, +[[sending: '(' (0@0-9) +sending: 'x' (1@10-19) +thing (1@10-19): 'x' (1@10-19) +sending: ')' (2@20-29) +line (0@0-29): '(' (0@0-9) thing (1@10-19) ')' (2@20-29) +sending: '(' (3@30-39) +sending: 'x' (4@40-49) +thing (4@40-49): 'x' (4@40-49) +sending: ')' (5@50-59) +line (3@30-59): '(' (3@30-39) thing (4@40-49) ')' (5@50-59) +sending: '(' (6@60-69) +sending: 'x' (7@70-79) +thing (7@70-79): 'x' (7@70-79) +sending: ')' (8@80-89) +line (6@60-89): '(' (6@60-69) thing (7@70-79) ')' (8@80-89) +sending: '(' (9@90-99) +sending: 'x' (10@100-109) +thing (10@100-109): 'x' (10@100-109) +sending: ')' (11@110-119) +line (9@90-119): '(' (9@90-99) thing (10@100-109) ')' (11@110-119) +sending: '(' (12@120-129) +sending: 'x' (13@130-139) +thing (13@130-139): 'x' (13@130-139) +sending: ')' (14@140-149) +line (12@120-149): '(' (12@120-129) thing (13@130-139) ')' (14@140-149) +sending: '(' (15@150-159) +sending: 'x' (16@160-169) +thing (16@160-169): 'x' (16@160-169) +sending: ')' (17@170-179) +line (15@150-179): '(' (15@150-159) thing (16@160-169) ')' (17@170-179) +sending: '(' (18@180-189) +sending: 'x' (19@190-199) +thing (19@190-199): 'x' (19@190-199) +sending: ')' (20@200-209) +200-209: memory exhausted +Freeing nterm thing (19@190-199) +Freeing nterm line (15@150-179) +Freeing nterm line (12@120-149) +Freeing nterm line (9@90-119) +Freeing nterm line (6@60-89) +Freeing nterm line (3@30-59) +Freeing nterm line (0@0-29) +Parsing FAILED (status 2). +]]) +]) + ]) -# AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS]) -# ------------------------------------------------ -# Produce `calc.y'. +# AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS], [UNION-FLAG], [SKIP_FLAG]) +# --------------------------------------------------------------------------- m4_define([AT_CHECK_PRINTER_AND_DESTRUCTOR], -[_AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], [$1]) +[AT_SETUP([Printers and Destructors $2: $1]) + +$3 +_AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], $[4], +[%error-verbose +%debug +%verbose +%locations +$1], [$2]) + +AT_CLEANUP ]) -AT_CHECK_PRINTER_AND_DESTRUCTOR() +AT_CHECK_PRINTER_AND_DESTRUCTOR([]) +AT_CHECK_PRINTER_AND_DESTRUCTOR([], [with union]) + +# These tests currently fail on a Debian GNU/Linux 3.0r2 x86 host, +# but the 2nd test succeeds on a Solaris 9 sparc hosts (Forte 7 cc). +# Skip them until we figure out what the problem is. +AT_CHECK_PRINTER_AND_DESTRUCTOR([%defines %skeleton "lalr1.cc"]) +AT_CHECK_PRINTER_AND_DESTRUCTOR([%defines %skeleton "lalr1.cc"], [with union]) + AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser]) +AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [with union])