X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/88bce5a2ef15e5b508749e75ddad709aca85b019..72731bb70bdbd8fe7cc178214b255e6425a04c6d:/tests/conflicts.at diff --git a/tests/conflicts.at b/tests/conflicts.at index 84b4fcda..381b49ef 100644 --- a/tests/conflicts.at +++ b/tests/conflicts.at @@ -1,5 +1,6 @@ # Exercising Bison on conflicts. -*- Autotest -*- -# Copyright (C) 2002 Free Software Foundation, Inc. + +# Copyright (C) 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 @@ -37,7 +38,9 @@ exp: e 'e'; e: 'e' | /* Nothing. */; ]]) -AT_CHECK([bison input.y -o input.c]) +AT_CHECK([bison -o input.c input.y], 0, [], +[[input.y:4.9: warning: rule never reduced because of conflicts: e: /* empty */ +]]) AT_CLEANUP @@ -48,17 +51,11 @@ AT_CLEANUP AT_SETUP([%nonassoc and eof]) -AT_DATA([input.y], +AT_DATA_GRAMMAR([input.y], [[ %{ -#include -/* We don't need a perfect malloc for these tests. */ -#undef malloc #include - -#if STDC_HEADERS -# include -#endif +#include #define YYERROR_VERBOSE 1 static void @@ -101,7 +98,7 @@ main (int argc, const char *argv[]) ]]) # Specify the output files to avoid problems on different file systems. -AT_CHECK([bison input.y -o input.c]) +AT_CHECK([bison -o input.c input.y]) AT_COMPILE([input]) AT_PARSER_CHECK([./input '0<0']) @@ -109,16 +106,16 @@ AT_PARSER_CHECK([./input '0<0']) # no one has ever spotted it! The messages are *wrong*: there should # be nothing there, it should be expected eof. AT_PARSER_CHECK([./input '0<0<0'], [1], [], - [parse error, unexpected '<', expecting '<' or '>' + [syntax error, unexpected '<', expecting '<' or '>' ]) AT_PARSER_CHECK([./input '0>0']) AT_PARSER_CHECK([./input '0>0>0'], [1], [], - [parse error, unexpected '>', expecting '<' or '>' + [syntax error, unexpected '>', expecting '<' or '>' ]) AT_PARSER_CHECK([./input '0<0>0'], [1], [], - [parse error, unexpected '>', expecting '<' or '>' + [syntax error, unexpected '>', expecting '<' or '>' ]) AT_CLEANUP @@ -139,13 +136,13 @@ AT_DATA([input.y], exp: exp OP exp | NUM; ]]) -AT_CHECK([bison input.y -o input.c --report=all], 0, [], -[input.y contains 1 shift/reduce conflict. +AT_CHECK([bison -o input.c --report=all input.y], 0, [], +[input.y: conflicts: 1 shift/reduce ]) # Check the contents of the report. AT_CHECK([cat input.output], [], -[[State 5 contains 1 shift/reduce conflict. +[[State 5 conflicts: 1 shift/reduce Grammar @@ -203,7 +200,7 @@ state 3 0 $accept: exp $end . - $default accept + $default accept state 4 @@ -247,7 +244,7 @@ AT_DATA([input.y], exp: exp OP exp | NUM; ]]) -AT_CHECK([bison input.y -o input.c --report=all]) +AT_CHECK([bison -o input.c --report=all input.y]) # Check the contents of the report. AT_CHECK([cat input.output], [], @@ -306,7 +303,7 @@ state 3 0 $accept: exp $end . - $default accept + $default accept state 4 @@ -326,6 +323,7 @@ state 5 1 | exp OP exp . [$end, OP] $default reduce using rule 1 (exp) + Conflict between rule 1 and token OP resolved as reduce (%left OP). ]]) @@ -368,13 +366,19 @@ id : '0'; %% ]]) -AT_CHECK([bison input.y -o input.c --report=all], 0, [], -[input.y contains 1 reduce/reduce conflict. -]) +AT_CHECK([bison -o input.c --report=all input.y], 0, [], +[[input.y: conflicts: 1 reduce/reduce +input.y:4.6-8: warning: rule never reduced because of conflicts: id: '0' +]]) # Check the contents of the report. AT_CHECK([cat input.output], [], -[[State 1 contains 1 reduce/reduce conflict. +[[Rules never reduced + + 4 id: '0' + + +State 1 conflicts: 1 reduce/reduce Grammar @@ -458,7 +462,7 @@ state 5 0 $accept: exp $end . - $default accept + $default accept ]]) AT_CLEANUP @@ -479,9 +483,9 @@ AT_DATA([input.y], exp: exp OP exp | NUM; ]]) -AT_CHECK([bison input.y -o input.c], 1, [], -[input.y contains 1 shift/reduce conflict. -expected 0 shift/reduce conflicts +AT_CHECK([bison -o input.c input.y], 0, [], +[input.y: conflicts: 1 shift/reduce +input.y: warning: expected 0 shift/reduce conflicts ]) AT_CLEANUP @@ -499,7 +503,7 @@ AT_DATA([input.y], exp: exp OP exp | NUM; ]]) -AT_CHECK([bison input.y -o input.c]) +AT_CHECK([bison -o input.c input.y]) AT_CLEANUP @@ -516,8 +520,102 @@ AT_DATA([input.y], exp: exp OP exp | NUM; ]]) -AT_CHECK([bison input.y -o input.c], 1, [], -[input.y contains 1 shift/reduce conflict. -expected 2 shift/reduce conflicts +AT_CHECK([bison -o input.c input.y], 0, [], +[input.y: conflicts: 1 shift/reduce +input.y: warning: expected 2 shift/reduce conflicts +]) +AT_CLEANUP + + +## ------------------------------ ## +## %expect with reduce conflicts ## +## ------------------------------ ## + +AT_SETUP([%expect with reduce conflicts]) + +AT_DATA([input.y], +[[%expect 0 +%% +program: a 'a' | a a; +a: 'a'; +]]) + +AT_CHECK([bison -o input.c input.y], 0, [], +[input.y: conflicts: 1 reduce/reduce +input.y: warning: expected 0 reduce/reduce conflicts ]) AT_CLEANUP + + +## ------------------------------- ## +## %no-default-prec without %prec ## +## ------------------------------- ## + +AT_SETUP([%no-default-prec without %prec]) + +AT_DATA([[input.y]], +[[%left '+' +%left '*' + +%% + +%no-default-prec; + +e: e '+' e + | e '*' e + | '0' + ; +]]) + +AT_CHECK([bison -o input.c input.y], 0, [], +[[input.y: conflicts: 4 shift/reduce +]]) +AT_CLEANUP + + +## ---------------------------- ## +## %no-default-prec with %prec ## +## ---------------------------- ## + +AT_SETUP([%no-default-prec with %prec]) + +AT_DATA([[input.y]], +[[%left '+' +%left '*' + +%% + +%no-default-prec; + +e: e '+' e %prec '+' + | e '*' e %prec '*' + | '0' + ; +]]) + +AT_CHECK([bison -o input.c input.y]) +AT_CLEANUP + + +## ---------------- ## +## %default-prec ## +## ---------------- ## + +AT_SETUP([%default-prec]) + +AT_DATA([[input.y]], +[[%left '+' +%left '*' + +%% + +%default-prec; + +e: e '+' e + | e '*' e + | '0' + ; +]]) + +AT_CHECK([bison -o input.c input.y]) +AT_CLEANUP