X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/7548fed236e50c5ba9933c373a537f1a1dd15224..603f1cfdc56691b331b6ef337a8c3633e7a125b3:/tests/calc.at?ds=inline diff --git a/tests/calc.at b/tests/calc.at index a5e64efe..26dcf860 100644 --- a/tests/calc.at +++ b/tests/calc.at @@ -1,4 +1,4 @@ -# Checking the output filenames. -*- Autotest -*- +# Simple calculator. -*- Autotest -*- # Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify @@ -45,34 +45,39 @@ AT_DATA_GRAMMAR([calc.y], # include # include #endif +#if HAVE_UNISTD_H +# include +#else +# undef alarm +# define alarm(seconds) /* empty */ +#endif #include extern void perror (const char *s); /* Exercise pre-prologue dependency to %union. */ -typedef int value; +typedef int semantic_value; -static value global_result = 0; +static semantic_value global_result = 0; static int global_count = 0; - -]AT_LALR1_CC_IF([typedef yy::Location YYLTYPE;])[ %} /* Exercise %union. */ %union { - value ival; + semantic_value ival; }; %{ static int power (int base, int exponent); -/* yyerror receives the location if: +]AT_LALR1_CC_IF([typedef yy::Location YYLTYPE;], +[/* yyerror receives the location if: - %location & %pure & %glr - %location & %pure & %yacc & %parse-param. */ -static void yyerror (]AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ])[ - ]AT_PARAM_IF([value *result, int *count, ])[ +static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ]) + AT_PARAM_IF([semantic_value *result, int *count, ]) const char *s - ); + );])[ static int yylex (]AT_LEX_FORMALS[); static int yygetc (]AT_LEX_FORMALS[); static void yyungetc (]AT_LEX_PRE_FORMALS[ int c); @@ -116,7 +121,9 @@ exp: | '-' exp %prec NEG { $$ = -$2; } | exp '^' exp { $$ = power ($1, $3); } | '(' exp ')' { $$ = $2; } -| '(' error ')' { $$ = 0; } +| '(' error ')' { $$ = 1111; } +| '!' { YYERROR; } +| '-' error { YYERROR; } ; %% /* The input. */ @@ -127,27 +134,27 @@ static FILE *yyin; void yy::Parser::print_ () { - std::cerr << location; +AT_LOCATION_IF([ + std::cerr << location;]) } /* A C++ error reporting function. */ void yy::Parser::error_ () { - std::cerr << location << ": " << message << std::endl; + std::cerr << AT_LOCATION_IF([location << ": " << ])message << std::endl; } int -yyparse (void) +yyparse (AT_PARAM_IF([semantic_value *result, int *count])) { - yy::Parser parser = yy::Parser (!!YYDEBUG[]AT_LOCATION_IF([, - yy::Location::Location ()])); + yy::Parser parser (!!YYDEBUG[]AT_LOCATION_IF([, yy::Location::Location ()])AT_PARAM_IF([, result, count])); return parser.parse (); } ], [static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *yylloc, ]) - AT_PARAM_IF([value *result, int *count, ]) + AT_PARAM_IF([semantic_value *result, int *count, ]) const char *s) { AT_PARAM_IF([(void) result; (void) count;]) @@ -252,20 +259,18 @@ yylex (]AT_LEX_FORMALS[) ])])[ } -]AT_LALR1_CC_IF( +]AT_LOCATION_IF([AT_LALR1_CC_IF( [ AT_LOC.begin = AT_LOC.end;], -[AT_LOCATION_IF([ - AT_LOC.first_column = AT_LOC.last_column; +[ AT_LOC.first_column = AT_LOC.last_column; AT_LOC.first_line = AT_LOC.last_line; ])])[ /* Skip white space. */ while ((c = yygetc (]AT_LEX_ARGS[)) == ' ' || c == '\t') { -]AT_LALR1_CC_IF( +]AT_LOCATION_IF([AT_LALR1_CC_IF( [ AT_LOC.begin = AT_LOC.end;], -[AT_LOCATION_IF([ - AT_LOC.first_column = AT_LOC.last_column; +[ AT_LOC.first_column = AT_LOC.last_column; AT_LOC.first_line = AT_LOC.last_line; ])])[ } @@ -301,10 +306,11 @@ power (int base, int exponent) int main (int argc, const char **argv) { - value result = 0; + semantic_value result = 0; int count = 0; int status; + alarm (10); if (argc == 2) yyin = fopen (argv[1], "r"); else @@ -316,9 +322,8 @@ main (int argc, const char **argv) exit (1); } -#if YYDEBUG - yydebug = 1; -#endif +]AT_LALR1_CC_IF([], [m4_bmatch([$4], [%debug], +[ yydebug = 1;])])[ status = yyparse (]AT_PARAM_IF([&result, &count])[); if (global_result != result) abort (); @@ -426,117 +431,26 @@ AT_CHECK([cat stderr], 0, [expout]) ]) -# AT_CALC_PUSHDEFS($1, $2, [BISON-OPTIONS]) -# ----------------------------------------- -# This macro works around the impossibility to define macros -# inside macros, because issuing `[$1]' is not possible in M4 :(. -# This sucks hard, GNU M4 should really provide M5 like $$1. -m4_define([AT_CHECK_PUSHDEFS], -[m4_if([$1$2], $[1]$[2], [], - [m4_fatal([$0: Invalid arguments: $@])])dnl -m4_pushdef([AT_LALR1_CC_IF], -[m4_bmatch([$3], ["lalr1.cc"], [$1], [$2])]) -m4_pushdef([AT_GLR_IF], -[m4_bmatch([$3], [%glr-parser], [$1], [$2])]) -m4_pushdef([AT_PARAM_IF], -[m4_bmatch([$3], [%parse-param], [$1], [$2])]) -m4_pushdef([AT_LOCATION_IF], -[m4_bmatch([$3], [%locations], [$1], [$2])]) -m4_pushdef([AT_PURE_IF], -[m4_bmatch([$3], [%pure-parser], [$1], [$2])]) -m4_pushdef([AT_PURE_AND_LOC_IF], -[m4_bmatch([$3], [%locations.*%pure-parser\|%pure-parser.*%locations], - [$1], [$2])]) -m4_pushdef([AT_GLR_OR_PARAM_IF], -[m4_bmatch([$3], [%glr-parser\|%parse-param], [$1], [$2])]) - -# yyerror receives the location if %location & %pure & (%glr or %parse-param). -m4_pushdef([AT_YYERROR_ARG_LOC_IF], -[AT_GLR_OR_PARAM_IF([AT_PURE_AND_LOC_IF([$1], [$2])], - [$2])]) -# yyerror cannot see the locations if !glr & pure & !param. -m4_pushdef([AT_YYERROR_SEES_LOC_IF], -[AT_LALR1_CC_IF([$1], - [AT_LOCATION_IF([AT_GLR_IF([$1], - [AT_PURE_IF([AT_PARAM_IF([$1], - [$2])], - [$1])])], - [$2])])]) - -# The interface is pure: either because %pure-parser, or because we -# are using the C++ parsers. -m4_pushdef([AT_PURE_LEX_IF], -[AT_PURE_IF([$1], - [AT_LALR1_CC_IF([$1], [$2])])]) - -AT_PURE_LEX_IF( -[m4_pushdef([AT_LOC], [(*yylloc)]) - m4_pushdef([AT_VAL], [(*yylval)]) - m4_pushdef([AT_LEX_FORMALS], - [YYSTYPE *yylval[]AT_LOCATION_IF([, YYLTYPE *yylloc])]) - m4_pushdef([AT_LEX_ARGS], - [yylval[]AT_LOCATION_IF([, yylloc])]) - m4_pushdef([AT_USE_LEX_ARGS], - [(void) yylval;AT_LOCATION_IF([(void) yylloc])]) - m4_pushdef([AT_LEX_PRE_FORMALS], - [AT_LEX_FORMALS, ]) - m4_pushdef([AT_LEX_PRE_ARGS], - [AT_LEX_ARGS, ]) -], -[m4_pushdef([AT_LOC], [(yylloc)]) - m4_pushdef([AT_VAL], [(yylval)]) - m4_pushdef([AT_LEX_FORMALS], [void]) - m4_pushdef([AT_LEX_ARGS], []) - m4_pushdef([AT_USE_LEX_ARGS], []) - m4_pushdef([AT_LEX_PRE_FORMALS], []) - m4_pushdef([AT_LEX_PRE_ARGS], []) -]) -])# AT_CALC_PUSHDEFS - - -# AT_CALC_POPDEFS -# --------------- -m4_define([AT_CHECK_POPDEFS], -[m4_popdef([AT_LEX_PRE_ARGS]) -m4_popdef([AT_LEX_PRE_FORMALS]) -m4_popdef([AT_USE_LEX_ARGS]) -m4_popdef([AT_LEX_ARGS]) -m4_popdef([AT_LEX_FORMALS]) -m4_popdef([AT_VAL]) -m4_popdef([AT_LOC]) -m4_popdef([AT_PURE_LEX_IF]) -m4_popdef([AT_YYERROR_SEES_LOC_IF]) -m4_popdef([AT_YYERROR_ARG_LOC_IF]) -m4_popdef([AT_GLR_OR_PARAM_IF]) -m4_popdef([AT_PURE_AND_LOC_IF]) -m4_popdef([AT_LOCATION_IF]) -m4_popdef([AT_PARAM_IF]) -m4_popdef([AT_GLR_IF]) -m4_popdef([AT_LALR1_CC_IF]) -]) - - - -# AT_CHECK_CALC([BISON-OPTIONS]) +# AT_CHECK_CALC([BISON-OPTIONS [, EXPECTED-TO-FAIL]]) # ------------------------------ # Start a testing chunk which compiles `calc' grammar with # BISON-OPTIONS, and performs several tests over the parser. +# However, if EXPECTED-TO-FAIL is nonempty, this test is expected to fail. m4_define([AT_CHECK_CALC], [# We use integers to avoid dependencies upon the precision of doubles. AT_SETUP([Calculator $1]) -AT_CHECK_PUSHDEFS($[1], $[2], [$1]) +m4_ifval([$2], [AT_CHECK([exit 77])]) + +AT_BISON_OPTION_PUSHDEFS([$1]) AT_DATA_CALC_Y([$1]) # Specify the output files to avoid problems on different file systems. -AT_CHECK([bison -o calc.c calc.y], - [0], [], []) +AT_CHECK([bison -o calc.c calc.y]) -AT_LALR1_CC_IF( -[AT_CHECK([$CXX --version || exit 77], 0, ignore, ignore) -AT_COMPILE_CXX([calc])], -[AT_COMPILE([calc])]) +AT_LALR1_CC_IF([AT_COMPILE_CXX([calc])], + [AT_COMPILE([calc])]) # Test the priorities. _AT_CHECK_CALC([$1], @@ -559,9 +473,9 @@ _AT_CHECK_CALC([$1], _AT_CHECK_CALC_ERROR([$1], [1], [0 0], [11], [1.2: syntax error, unexpected "number"]) _AT_CHECK_CALC_ERROR([$1], [1], [1//2], [15], - [1.2: syntax error, unexpected '/', expecting "number" or '-' or '(']) + [1.2: syntax error, unexpected '/', expecting "number" or '-' or '(' or '!']) _AT_CHECK_CALC_ERROR([$1], [1], [error], [4], - [1.0: syntax error, unexpected $undefined, expecting "number" or '-' or '\n' or '(']) + [1.0: syntax error, unexpected $undefined]) _AT_CHECK_CALC_ERROR([$1], [1], [1 = 2 = 3], [22], [1.6: syntax error, unexpected '=']) _AT_CHECK_CALC_ERROR([$1], [1], @@ -571,17 +485,43 @@ _AT_CHECK_CALC_ERROR([$1], [1], [2.0: syntax error, unexpected '+']) # Exercise error messages with EOF: work on an empty file. _AT_CHECK_CALC_ERROR([$1], [1], [/dev/null], [4], - [1.0: syntax error, unexpected "end of input", expecting "number" or '-' or '\n' or '(']) + [1.0: syntax error, unexpected "end of input"]) # Exercise the error token: without it, we die at the first error, -# hence be sure i. to have several errors, ii. to test the action -# associated to `error'. -_AT_CHECK_CALC_ERROR([$1], [0], [(1 ++ 2) + (0 0) = 1], [82], -[1.4: syntax error, unexpected '+', expecting "number" or '-' or '(' -1.14: syntax error, unexpected "number" -calc: error: 0 != 1]) - -AT_CHECK_POPDEFS +# hence be sure to +# +# - have several errors which exercise different shift/discardings +# - (): nothing to pop, nothing to discard +# - (1 + 1 + 1 +): a lot to pop, nothing to discard +# - (* * *): nothing to pop, a lot to discard +# - (1 + 2 * *): some to pop and discard +# +# - test the action associated to `error' +# +# - check the lookahead that triggers an error is not discarded +# when we enter error recovery. Below, the lookahead causing the +# first error is ")", which is needed to recover from the error and +# produce the "0" that triggers the "0 != 1" error. +# +_AT_CHECK_CALC_ERROR([$1], [0], + [() + (1 + 1 + 1 +) + (* * *) + (1 * 2 * *) = 1], + [156], +[1.1: syntax error, unexpected ')', expecting "number" or '-' or '(' or '!' +1.17: syntax error, unexpected ')', expecting "number" or '-' or '(' or '!' +1.22: syntax error, unexpected '*', expecting "number" or '-' or '(' or '!' +1.40: syntax error, unexpected '*', expecting "number" or '-' or '(' or '!' +calc: error: 4444 != 1]) + +# The same, but this time exercising explicitly triggered syntax errors. +# POSIX says the lookahead causing the error should not be discarded. +_AT_CHECK_CALC_ERROR([$1], [0], [(!) + (0 0) = 1], [62], +[1.9: syntax error, unexpected "number" +calc: error: 2222 != 1]) +_AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [70], +[1.3: syntax error, unexpected '*', expecting "number" or '-' or '(' or '!' +1.11: syntax error, unexpected "number" +calc: error: 2222 != 1]) +AT_BISON_OPTION_POPDEFS AT_CLEANUP ])# AT_CHECK_CALC @@ -611,6 +551,7 @@ AT_CHECK_CALC_LALR([%verbose]) AT_CHECK_CALC_LALR([%yacc]) AT_CHECK_CALC_LALR([%error-verbose]) +AT_CHECK_CALC_LALR([%pure-parser %locations]) AT_CHECK_CALC_LALR([%error-verbose %locations]) AT_CHECK_CALC_LALR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc]) @@ -620,7 +561,7 @@ AT_CHECK_CALC_LALR([%error-verbose %debug %locations %defines %name-prefix="calc AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc]) -AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}]) +AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}]) # ----------------------- # @@ -646,6 +587,7 @@ AT_CHECK_CALC_GLR([%verbose]) AT_CHECK_CALC_GLR([%yacc]) AT_CHECK_CALC_GLR([%error-verbose]) +AT_CHECK_CALC_GLR([%pure-parser %locations]) AT_CHECK_CALC_GLR([%error-verbose %locations]) AT_CHECK_CALC_GLR([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc]) @@ -655,7 +597,7 @@ AT_CHECK_CALC_GLR([%error-verbose %debug %locations %defines %name-prefix="calc" AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc]) -AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}]) +AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}]) # ----------------------------- # @@ -667,27 +609,29 @@ AT_BANNER([[Simple LALR1 C++ Calculator.]]) # AT_CHECK_CALC_LALR1_CC([BISON-OPTIONS]) # --------------------------------------- # Start a testing chunk which compiles `calc' grammar with -# BISON-OPTIONS and %glr-parser, and performs several tests over the parser. +# the C++ skeleton, and performs several tests over the parser. m4_define([AT_CHECK_CALC_LALR1_CC], [AT_CHECK_CALC([%skeleton "lalr1.cc"] $@)]) # AT_CHECK_CALC_LALR1_CC() -AT_CHECK_CALC_LALR1_CC([%defines %pure-parser %locations]) -# AT_CHECK_CALC_LALR1_CC([%defines]) +AT_CHECK_CALC_LALR1_CC([%defines %locations]) + +AT_CHECK_CALC_LALR1_CC([%defines]) # AT_CHECK_CALC_LALR1_CC([%locations]) # AT_CHECK_CALC_LALR1_CC([%name-prefix="calc"]) # AT_CHECK_CALC_LALR1_CC([%verbose]) # AT_CHECK_CALC_LALR1_CC([%yacc]) # AT_CHECK_CALC_LALR1_CC([%error-verbose]) +# AT_CHECK_CALC_LALR1_CC([%pure-parser %locations]) # AT_CHECK_CALC_LALR1_CC([%error-verbose %locations]) -# AT_CHECK_CALC_LALR1_CC([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc]) +AT_CHECK_CALC_LALR1_CC([%error-verbose %locations %defines %name-prefix="calc" %verbose %yacc]) # AT_CHECK_CALC_LALR1_CC([%debug]) -# AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc]) +AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc]) -# AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc]) +AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc]) -# AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {value *result} %parse-param {int *count}]) +AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %locations %defines %name-prefix="calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])