X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/6c35d22c399d53cc4ce2b0f594a3033ede3ae117..e59adf8f042c54514f77baf82bac61fcfa414ee8:/tests/input.at?ds=sidebyside diff --git a/tests/input.at b/tests/input.at index 548032de..886c14ad 100644 --- a/tests/input.at +++ b/tests/input.at @@ -1,5 +1,5 @@ -# Checking the output filenames. -*- Autotest -*- -# Copyright (C) 2002 Free Software Foundation, Inc. +# Checking the Bison scanner. -*- Autotest -*- +# Copyright (C) 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 @@ -21,35 +21,11 @@ AT_BANNER([[Input Processing.]]) # Mostly test that we are robust to mistakes. -## ----------------------- ## -## Torturing the Scanner. ## -## ----------------------- ## - -AT_SETUP([Torturing the Scanner]) - -AT_DATA([input.y], -[[%{ -/* This is seen in GCC: a %{ and %} in middle of a comment. */ -const char *foo = "So %{ and %} can be here."; -%} -/* %{ and %} can be here too. */ - -%% -exp: 'a'; -]]) - -AT_CHECK([bison input.y]) - -AT_CLEANUP - - - - ## ------------ ## ## Invalid $n. ## ## ------------ ## -AT_SETUP([Invalid $n]) +AT_SETUP([Invalid dollar-n]) AT_DATA([input.y], [[%% @@ -57,7 +33,7 @@ exp: { $$ = $1 ; }; ]]) AT_CHECK([bison input.y], [1], [], -[[input.y:2: invalid value: $1 +[[input.y:2.13-14: integer out of range: `$1' ]]) AT_CLEANUP @@ -75,17 +51,17 @@ exp: { @$ = @1 ; }; ]]) AT_CHECK([bison input.y], [1], [], -[[input.y:2: invalid value: @1 +[[input.y:2.13-14: integer out of range: `@1' ]]) AT_CLEANUP ## -------------- ## -## Type clashes. ## +## Type Clashes. ## ## -------------- ## -AT_SETUP([Type clashes]) +AT_SETUP([Type Clashes]) AT_DATA([input.y], [[%token foo @@ -97,10 +73,227 @@ exp: foo {} foo ; ]]) +AT_CHECK([bison input.y], [], [], +[[input.y:4.6-15: warning: type clash on default action: != <> +input.y:5.6-8: warning: type clash on default action: != <> +input.y:6.5: warning: empty rule for typed nonterminal, and no action +]]) + +AT_CLEANUP + + +## ---------------------- ## +## Incompatible Aliases. ## +## ---------------------- ## + +AT_SETUP([Incompatible Aliases]) + +AT_DATA([input.y], +[[%token foo "foo" + +%type foo +%printer {bar} foo +%destructor {bar} foo +%left foo + +%type "foo" +%printer {baz} "foo" +%destructor {baz} "foo" +%left "foo" + +%% +exp: foo; +]]) + +AT_CHECK([bison input.y], [1], [], +[[input.y:8.7-11: %type redeclaration for foo +input.y:3.7-11: first declaration +input.y:10.13-17: %destructor redeclaration for foo +input.y:5.13-17: first declaration +input.y:9.19-23: %printer redeclaration for foo +input.y:10.13-17: first declaration +input.y:11.1-5: %left redeclaration for foo +input.y:6.1-5: first declaration +]]) + +AT_CLEANUP + + + +## ----------------------- ## +## Torturing the Scanner. ## +## ----------------------- ## + +# Be sure to compile and run, so that the C compiler checks what +# we do. + +AT_SETUP([Torturing the Scanner]) + + +AT_DATA([input.y], []) AT_CHECK([bison input.y], [1], [], -[[input.y:5: type clash (`bar' `') on default action -input.y:6: type clash (`bar' `') on default action -input.y:7: empty rule for typed nonterminal, and no action +[[input.y:1.1: syntax error, unexpected "end of file" ]]) + +AT_DATA_GRAMMAR([input.y], +[[%{ +/* This is seen in GCC: a %{ and %} in middle of a comment. */ +const char *foo = "So %{ and %} can be here too."; + +#if 0 +/* These examples test Bison while not stressing C compilers too much. + Many C compilers mishandle backslash-newlines, so this part of the + test is inside "#if 0". The comment and string are written so that + the "#endif" will be seen regardless of the C compiler bugs that we + know about, namely: + + HP C (as of late 2002) mishandles *\[newline]\[newline]/ within a + comment. + + The Apple Darwin compiler (as of late 2002) mishandles + \\[newline]' within a character constant. + + */ + +/\ +* A comment with backslash-newlines in it. %} *\ +\ +/ +/* { Close the above comment, if the C compiler mishandled it. */ + +char str[] = "\\ +" A string with backslash-newlines in it %{ %} \\ +\ +""; + +char apostrophe = '\''; +#endif + +#include +%} +/* %{ and %} can be here too. */ + +%{ +/* Exercise pre-prologue dependency to %union. */ +typedef int value; +%} + +/* Exercise M4 quoting: '@:>@@:>@', 0. */ + +/* Also exercise %union. */ +%union +{ + value ival; /* A comment to exercise an old bug. */ +}; + + +/* Exercise post-prologue dependency to %union. */ +%{ +static YYSTYPE value_as_yystype (value val); + +/* Exercise quotes in declarations. */ +char quote[] = "@:>@@:>@,"; +%} + +%{ +static void yyerror (const char *s); +static int yylex (void); +%} + +%type '@<:@' + +/* Exercise quotes in strings. */ +%token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/?? \x1\1" + +%% +/* Exercise M4 quoting: '@:>@@:>@', @<:@, 1. */ +exp: '@<:@' '\1' two '$' '@' '{' oline output.or.oline.opt + { + /* Exercise quotes in braces. */ + char tmp[] = "@<:@%c@:>@,\n"; + printf (tmp, $1); + } +; + +two: '\x000000000000000000000000000000000000000000000000000000000000000000002'; +oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_'; +output.or.oline.opt: ;|oline;;|output;;; +output: '#' 'o' 'u' 't' 'p' 'u' 't' ' '; +%% +/* Exercise M4 quoting: '@:>@@:>@', @<:@, 2. */ + +static YYSTYPE +value_as_yystype (value val) +{ + YYSTYPE res; + res.ival = val; + return res; +} + +static int +yylex (void) +{ + static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\ +#output "; /* " + */ + yylval = value_as_yystype (*input); + return *input++; +} + +static void +yyerror (const char *msg) +{ + fprintf (stderr, "%s\n", msg); +} +]]) + +# Pacify Emacs'font-lock-mode: " + +AT_DATA([main.c], +[[typedef int value; +#include "input.h" + +int yyparse (void); + +int +main (void) +{ + return yyparse (); +} +]]) + +AT_CHECK([bison -d -v -o input.c input.y]) +AT_COMPILE([input.o], [-c input.c]) +AT_COMPILE([main.o], [-c main.c]) +AT_COMPILE([input], [input.o main.o]) +AT_PARSER_CHECK([./input], 0, +[[[@<:@], +]]) + +AT_CLEANUP + + +## ---------------------- ## +## Typed symbol aliases. ## +## ---------------------- ## + +AT_SETUP([Typed symbol aliases]) + +# Bison 2.0 broke typed symbol aliases - ensure they work. + +AT_DATA_GRAMMAR([input.y], +[[%union +{ + int val; +}; +%token MY_TOKEN "MY TOKEN" +%type exp +%% +exp: "MY TOKEN"; +%% +]]) + +AT_CHECK([bison -o input.c input.y]) + AT_CLEANUP