X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/931394cbc10909854852366d589f1d25527922fc..a5eb1ed262e86657c5af95e4a8eae258a2e49e4b:/tests/actions.at diff --git a/tests/actions.at b/tests/actions.at index 79dee6fb..e8124e9e 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 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 @@ -29,12 +29,14 @@ AT_SETUP([Mid-rule actions]) # instead of being attached to the empty rule dedicated to this # action. -AT_DATA([[input.y]], +AT_DATA_GRAMMAR([[input.y]], [[%{ -#include -#include -static void yyerror (const char *msg); -static int yylex (void); +# include +# include + static void yyerror (const char *msg); + static int yylex (void); +# define YYDEBUG 1 +# define YYERROR_VERBOSE 1 %} %% exp: { putchar ('0'); } @@ -70,10 +72,500 @@ main (void) } ]]) -AT_CHECK([bison input.y -d -v -o input.c]) -AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore]) -AT_CHECK([input], 0, +AT_CHECK([bison -d -v -o input.c input.y]) +AT_COMPILE([input]) +AT_PARSER_CHECK([./input], 0, [[0123456789 ]]) 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[] = + { + /* Exercise 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' (%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' (0) +thing (0): 'x' (0) +sending: 'x' (1) +thing (1): 'x' (1) +sending: 'x' (2) +thing (2): 'x' (2) +sending: 'x' (3) +4: syntax error +sending: 'x' (4) +sending: 'x' (5) +sending: ';' (6) +line (-1): error ';' (6) +sending: 'x' (7) +thing (7): 'x' (7) +sending: 'x' (8) +thing (8): 'x' (8) +sending: ';' (9) +line (7): thing (7) thing (8) ';' (9) +sending: 'x' (10) +thing (10): 'x' (10) +sending: ';' (11) +line (10): thing (10) ';' (11) +sending: 'y' (12) +13: syntax error +sending: EOF +]]) + +AT_CLEANUP + + + +## ---------------- ## +## Exotic Dollars. ## +## ---------------- ## + +AT_SETUP([Exotic Dollars]) + +AT_DATA_GRAMMAR([[input.y]], +[[%{ +# include +# include + static void yyerror (const char *msg); + static int yylex (void); +# define YYDEBUG 1 +# define YYERROR_VERBOSE 1 +%} + +%union +{ + int val; +}; + +%type a_1 a_2 a_5 + sum_of_the_five_previous_values + +%% +exp: a_1 a_2 { $$ = 3; } { $$ = $3 + 1; } a_5 + sum_of_the_five_previous_values + { + printf ("%d\n", $6); + } +; +a_1: { $$ = 1; }; +a_2: { $$ = 2; }; +a_5: { $$ = 5; }; + +sum_of_the_five_previous_values: + { + $$ = $0 + $-1 + $-2 + $-3 + $-4; + } +; + +%% +static int +yylex (void) +{ + return EOF; +} + +static void +yyerror (const char *msg) +{ + fprintf (stderr, "%s\n", msg); +} + +int +main (void) +{ + return yyparse (); +} +]]) + +AT_CHECK([bison -d -v -o input.c input.y]) +AT_COMPILE([input]) +AT_PARSER_CHECK([./input], 0, +[[15 +]]) + +AT_CLEANUP + + + +## -------------------------- ## +## Printers and Destructors. ## +## -------------------------- ## + +# _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], [], + [m4_fatal([$0: Invalid arguments: $@])])dnl + +AT_SETUP([Printers and Destructors $6: $5]) + +# Make sure complex $n work. + +AT_BISON_OPTION_PUSHDEFS([$5]) +AT_DATA_GRAMMAR([[input.y]], +[[$5 +%{ +#include +#include +]AT_LALR1_CC_IF( + [#define RANGE(Location) (Location).begin.line, (Location).end.line], + [#define RANGE(Location) (Location).first_line, (Location).last_line]) +[%} +%error-verbose +%debug +%verbose +%locations +]m4_ifval([$6], [%union +{ + int ival; +}]) +[ +%{ +]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([$6], [%type 'x' ';' thing line input])[ + +%printer + { + ]AT_LALR1_CC_IF([cdebug_ << @$ << ": " << $$;], + [fprintf (yyoutput, "%d@%d-%d", $$, RANGE (@$))])[; + } + input line thing 'x' + +%destructor + { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); } + input + +%destructor + { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); } + line + +%destructor + { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); } + thing + +%destructor + { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); } + 'x' + +%% +input: + /* Nothing. */ + { + $$ = 0; + printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$)); + } +| line input /* Right recursive to load the stack so that popping at + EOF can be exercised. */ + { + $$ = 2; + printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2)); + } +; + +line: + thing thing thing ';' + { + $$ = $1; + printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), + $3, RANGE (@3), $4, RANGE (@4)); + } +| thing thing ';' + { + $$ = $1; + printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3)); + } +| thing ';' + { + $$ = $1; + printf ("line (%d@%d-%d): thing (%d@%d-%d) ';' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2)); + } +| error ';' + { + $$ = -1; + printf ("line (%d@%d-%d): error (@%d-%d) ';' (%d@%d-%d)\n", + $$, RANGE (@$), RANGE (@1), $2, RANGE (@2)); + } +; + +thing: + 'x' + { + $$ = $1; + printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n", + $$, RANGE (@$), $1, RANGE (@1)); + } +; +%% +static int +yylex (]AT_LEX_FORMALS[) +{ + static const char input[] = + { + /* Exercise 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]))) + { +]AT_LALR1_CC_IF( +[ int c = m4_ifval([$6], [yylval->ival], [*yylval]) = counter++; + /* As in BASIC, line numbers go from 10 to 10. */ + yylloc->begin.line = yylloc->begin.column = 10 * c; + yylloc->end.line = yylloc->end.column = yylloc->begin.line + 9; + printf ("sending: '%c' (%d@%d-%d)\n", + input[[c]], c, RANGE (*yylloc)); + return input[[c]]; +], +[ int c = m4_ifval([$6], [yylval.ival], [yylval]) = counter++; + /* As in BASIC, line numbers go from 10 to 10. */ + yylloc.first_line = yylloc.first_column = 10 * c; + yylloc.last_line = yylloc.last_column = yylloc.first_line + 9; + printf ("sending: '%c' (%d@%d-%d)\n", + input[[c]], c, RANGE (yylloc)); + return input[[c]]; +])[ + } + else + { + printf ("sending: EOF\n"); + return EOF; + } +} + +]AT_LALR1_CC_IF( +[/* Currently, print_ is required in C++. */ +void +yy::Parser::print_ () +{ + std::cerr << location; +} + +/* A C++ error reporting function. */ +void +yy::Parser::error_ () +{ + printf ("%d-%d: %s\n", RANGE (location), message.c_str()); +} + +static bool yydebug; +int +yyparse () +{ + yy::Parser parser (yydebug, yy::Location ()); + return parser.parse (); +} +], +[static void +yyerror (const char *msg) +{ + printf ("%d-%d: %s\n", RANGE (yylloc), msg); +}])[ + +int +main (void) +{ + yydebug = !!getenv ("YYDEBUG"); + if (yyparse ()) + { + printf ("Parsing FAILED.\n"); + exit (1); + } + printf ("Successful parse.\n"); + return 0; +} +]]) + +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])]) +AT_PARSER_CHECK([./input], 1, +[[sending: 'x' (0@0-9) +thing (0@0-9): 'x' (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 nterm thing (0@0-9) +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): error (@0-59) ';' (6@60-69) +sending: 'x' (7@70-79) +thing (7@70-79): 'x' (7@70-79) +sending: 'x' (8@80-89) +thing (8@80-89): 'x' (8@80-89) +sending: ';' (9@90-99) +line (7@70-99): thing (7@70-79) thing (8@80-89) ';' (9@90-99) +sending: 'x' (10@100-109) +thing (10@100-109): 'x' (10@100-109) +sending: ';' (11@110-119) +line (10@100-119): thing (10@100-109) ';' (11@110-119) +sending: 'y' (12@120-129) +120-129: syntax error, unexpected $undefined, expecting $end or 'x' +sending: EOF +Freeing nterm line (10@100-119) +Freeing nterm line (7@70-99) +Freeing nterm line (-1@0-69) +Parsing FAILED. +]]) + +AT_CLEANUP +]) + + +# AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS], [UNION-FLAG]) +# -------------------------------------------------------------- +# Produce `calc.y'. +m4_define([AT_CHECK_PRINTER_AND_DESTRUCTOR], +[_AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], $[4], [$1], [$2]) +]) + + +AT_CHECK_PRINTER_AND_DESTRUCTOR([]) +AT_CHECK_PRINTER_AND_DESTRUCTOR([], [with union]) +AT_CHECK_PRINTER_AND_DESTRUCTOR([%locations %defines %skeleton "lalr1.cc"]) +AT_CHECK_PRINTER_AND_DESTRUCTOR([%locations %defines %skeleton "lalr1.cc"], + [with union]) + +# FIXME. These test cases fail. +#AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser]) +#AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [with union])