-# Executing Actions. -*- Autotest -*-
+e# Executing Actions. -*- Autotest -*-
-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 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
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
%debug
-%{
+%code {
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
-%}
+}
%%
exp: { putchar ('0'); }
'1' { putchar ('1'); }
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE(["123456789"])[
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
AT_CLEANUP
+## ----------------------- ##
+## Implicitly empty rule. ##
+## ----------------------- ##
+
+AT_SETUP([Implicitly empty rule])
+
+AT_DATA_GRAMMAR([[1.y]],
+[[%%
+exp: a b;
+a: /* empty. */ {};
+// A mid-rule action does not count as an empty rule.
+b: {} {};
+]])
+
+AT_BISON_CHECK([-fcaret -Wempty-rule 1.y], [0], [],
+[[1.y:11.17-18: warning: empty rule without %empty [-Wempty-rule]
+ a: /* empty. */ {};
+ ^^
+]])
+
+AT_DATA_GRAMMAR([[2.y]],
+[[%%
+exp: a b c;
+a: /* empty. */ {};
+b: %empty {};
+c: /* empty. */ {};
+]])
+
+AT_BISON_CHECK([-fcaret 2.y], [0], [],
+[[2.y:11.17-18: warning: empty rule without %empty [-Wempty-rule]
+ a: /* empty. */ {};
+ ^^
+2.y:13.17-18: warning: empty rule without %empty [-Wempty-rule]
+ c: /* empty. */ {};
+ ^^
+]])
+
+AT_BISON_CHECK([-fcaret -Wno-empty-rule 2.y], [0])
+
+AT_CLEANUP
+
+## ------------------------ ##
+## Invalid uses of %empty. ##
+## ------------------------ ##
+
+AT_SETUP([Invalid uses of %empty])
+
+AT_DATA_GRAMMAR([[one.y]],
+[[%%
+exp:
+ %empty {} %empty
+;
+]])
+
+AT_BISON_CHECK([-fcaret one.y], [1], [],
+[[one.y:11.13-18: error: only one %empty allowed per rule
+ %empty {} %empty
+ ^^^^^^
+one.y:11.3-8: previous declaration
+ %empty {} %empty
+ ^^^^^^
+]])
+
+AT_DATA_GRAMMAR([[two.y]],
+[[%%
+exp:
+ 'a' %empty {}
+| %empty 'a' {}
+| %empty {} {}
+;
+]])
+
+AT_BISON_CHECK([-fcaret two.y], [1], [],
+[[two.y:11.7-12: error: %empty on non-empty rule
+ 'a' %empty {}
+ ^^^^^^
+two.y:12.3-8: error: %empty on non-empty rule
+ | %empty 'a' {}
+ ^^^^^^
+two.y:13.3-8: error: %empty on non-empty rule
+ | %empty {} {}
+ ^^^^^^
+]])
+
+AT_CLEANUP
+
+## ---------------------- ##
+## Valid uses of %empty. ##
+## ---------------------- ##
+
+AT_SETUP([Valid uses of %empty])
+
+AT_BISON_OPTION_PUSHDEFS
+AT_DATA_GRAMMAR([[input.y]],
+[[
+%debug
+%code
+{
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[
+}
+%%
+exp: %empty {}
+%%
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE[
+]AT_MAIN_DEFINE[
+]])
+
+AT_FULL_COMPILE([input])
+AT_PARSER_CHECK([./input])
+AT_BISON_OPTION_POPDEFS
+AT_CLEANUP
## ------------------ ##
## Initial location. ##
AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" $2])
AT_DATA_GRAMMAR([[input.y]],
-[[%defines /* FIXME: Required by lalr1.cc in Bison 2.6. */
-%locations
+[[%locations
%debug
%skeleton "$1"
]$2[
%code
{
# include <stdio.h>
-# include <stdlib.h> // getenv
+# include <stdlib.h> /* getenv */
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
}
%%
exp: { ]AT_SKEL_CC_IF([[std::cerr << @$ << std::endl]],
- [[YY_LOCATION_PRINT(stderr, @$); fputc ('\n', stderr)]])[; }
+ [[LOCATION_PRINT(stderr, @$); fputc ('\n', stderr)]])[; }
%%
]AT_YYERROR_DEFINE[
AT_TEST([yacc.c], [%define api.pure full],
[[%{
# define YYLTYPE int
-# define YY_LOCATION_PRINT(Stream, Loc) \
+# define LOCATION_PRINT(Stream, Loc) \
(void) (Loc)
# define YYLLOC_DEFAULT(Current, Rhs, N) \
(Current) = ((Rhs)[N ? 1 : 0])
AT_TEST([yacc.c], [%define api.pure full],
[[%{
# define YYLTYPE int
-# define YY_LOCATION_PRINT(Stream, Loc) \
+# define LOCATION_PRINT(Stream, Loc) \
fprintf ((Stream), "%d", (Loc))
# define YYLLOC_DEFAULT(Current, Rhs, N) \
(Current) = ((Rhs)[N ? 1 : 0])
## Location Print. ##
## ---------------- ##
-# AT_TEST(SKELETON-NAME, DIRECTIVES, [MORE-DIRECTIVES], [LOCATION = 1.1])
-# -----------------------------------------------------------------------
+# AT_TEST(SKELETON-NAME, DIRECTIVES, [MORE-DIRECTIVES])
+# -----------------------------------------------------
# Check that the initial location is correct.
m4_pushdef([AT_TEST],
[AT_SETUP([Location print: $1 $2])
AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" $2])
AT_DATA_GRAMMAR([[input.y]],
-[[%defines /* FIXME: Required by lalr1.cc in Bison 2.6. */
-%locations
+[[%locations
%debug
%skeleton "$1"
]$2[
]$3[
%code
{
-# include <stdio.h>
-# include <stdlib.h> // getenv
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
}
%%
-exp:;
+exp: %empty;
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE[
int
main (void)
{
+ ]AT_YYLTYPE[ loc;
+]AT_GLR_CC_IF([loc.initialize();])[
#define TEST(L1, C1, L2, C2) \
- ]AT_LOC_FIRST_LINE[ = L1; \
- ]AT_LOC_FIRST_COLUMN[ = C1; \
- ]AT_LOC_LAST_LINE[ = L2; \
- ]AT_LOC_LAST_COLUMN[ = C2; \
- ]YY_LOCATION_PRINT(stdout, AT_LOC)[;\
+ loc.]AT_FIRST_LINE[ = L1; \
+ loc.]AT_FIRST_COLUMN[ = C1; \
+ loc.]AT_LAST_LINE[ = L2; \
+ loc.]AT_LAST_COLUMN[ = C2; \
+ ]AT_SKEL_CC_IF([std::cout << loc],
+ [LOCATION_PRINT(stdout, loc)])[;\
putchar ('\n');
TEST(1, 1, 1, 1);
TEST(7, 2, 0, 2);
TEST(8, 0, 8, 0);
+ return 0;
}
]])
## FIXME: test Java, and iterate over skeletons.
AT_TEST([yacc.c])
AT_TEST([glr.c])
-#AT_TEST([lalr1.cc])
-#AT_TEST([glr.cc])
+AT_TEST([lalr1.cc])
+AT_TEST([glr.cc])
m4_popdef([AT_TEST])
AT_BISON_OPTION_PUSHDEFS
AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
%debug
-%{
+%code {
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
# define USE(Var)
-%}
+}
%union
{
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE[
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_CHECK([-d -v -o input.c input.y], 0)
AT_DATA_GRAMMAR([[input.y]],
[[
%{
-#include <stdio.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
typedef struct { int val; } stype;
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE[
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_FULL_COMPILE([input])
%%
/*
This grammar is made to exercise error recovery.
- "Lines" starting with `(' support error recovery, with
+ "Lines" starting with '(' support error recovery, with
')' as synchronizing token. Lines starting with 'x' can never
be recovered from if in error.
*/
$$ = -1;
V(line, $$, @$, ": ");
V('(', $1, @1, " ");
- fprintf (stderr, "error (@%d-%d) ", RANGE (@2));
+ fprintf (stderr, "error (@%d-%d) ", RANGE(@2));
V(')', $3, @3, "\n");
}
;
{
static unsigned int counter = 0;
- int c = ]AT_VAL[]m4_ifval([$6], [.ival])[ = counter++;
+ unsigned int c = ]AT_VAL[]m4_ifval([$6], [.ival])[ = counter++;
/* As in BASIC, line numbers go from 10 to 10. */
]AT_LOC_FIRST_LINE[ = ]AT_LOC_FIRST_COLUMN[ = 10 * c;
]AT_LOC_LAST_LINE[ = ]AT_LOC_LAST_COLUMN[ = ]AT_LOC_FIRST_LINE[ + 9;
- assert (0 <= c && c <= strlen (source));
+ assert (c <= strlen (source));
if (source[c])
fprintf (stderr, "sending: '%c'", source[c]);
else
# Syntax errors caught by the parser
# ----------------------------------
-# Exercise the discarding of stack top and input until `error'
+# Exercise the discarding of stack top and input until 'error'
# can be reduced.
#
# '(', 'x', 'x', 'x', 'x', 'x', ')',
$3
_AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], $[4],
-[%error-verbose
+[%define parse.error verbose
%debug
%verbose
%locations
# called for $end, and that $$ and @$ work correctly.
AT_SETUP([Default tagless %printer and %destructor])
-AT_BISON_OPTION_PUSHDEFS([%locations])
+AT_BISON_OPTION_PUSHDEFS([%locations %debug])
AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
%debug
%locations
-%{
-# include <stdio.h>
-# include <stdlib.h>
+%code {
]AT_YYLEX_DECLARE[
]AT_YYERROR_DECLARE[
# define USE(SYM)
-%}
+}
%printer {
fprintf (yyoutput, "<*> printer should not be called.\n");
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE(["abcd"], [[yylval = res]])[
-
-int
-main (void)
-{
- yydebug = 1;
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
-AT_BISON_CHECK([-o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y], [], [],
+[[input.y:30.3-5: warning: useless %destructor for type <*> [-Wother]
+input.y:30.3-5: warning: useless %printer for type <*> [-Wother]
+]])
AT_COMPILE([input])
-AT_PARSER_CHECK([./input], 1,
+AT_PARSER_CHECK([./input --debug], 1,
[[<> destructor for 'd' @ 4.
'b'/'c' destructor for 'c' @ 3.
'b'/'c' destructor for 'b' @ 2.
## ------------------------------------------------------ ##
AT_SETUP([Default tagged and per-type %printer and %destructor])
-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])
AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
%debug
%{
-# include <stdio.h>
-# include <stdlib.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
# define USE(SYM)
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE(["abcdef"])[
-
-int
-main (void)
-{
- yydebug = 1;
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
-AT_BISON_CHECK([-o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y], [], [],
+[[input.y:22.3-4: warning: useless %destructor for type <> [-Wother]
+input.y:22.3-4: warning: useless %printer for type <> [-Wother]
+]])
AT_COMPILE([input])
-AT_PARSER_CHECK([./input], 1,
+AT_PARSER_CHECK([./input --debug], 1,
[[<*>/<field2>/e destructor.
<*>/<field2>/e destructor.
'd' destructor.
AT_SETUP([Default %printer and %destructor for user-defined end token])
-# _AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(TYPED)
-# -------------------------------------------------------------
-m4_define([_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN],
+# AT_TEST(TYPED)
+# --------------
+m4_pushdef([AT_TEST],
[m4_if($1, 0,
[m4_pushdef([kind], []) m4_pushdef([not_kind], [*])],
[m4_pushdef([kind], [*]) m4_pushdef([not_kind], [])])
-AT_BISON_OPTION_PUSHDEFS([%locations])
+AT_BISON_OPTION_PUSHDEFS([%locations %debug])
AT_DATA_GRAMMAR([[input]]$1[[.y]],
-[[%error-verbose
+[[%define parse.error verbose
%debug
%locations
-%{
-# include <stdio.h>
-# include <stdlib.h>
+%code {
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
# define USE(SYM)
-%}
+}
%destructor {
fprintf (yyoutput, "<]]not_kind[[> destructor should not be called.\n");
start: { $$ = 'S'; } ;
%%
-
+#include <stdlib.h> /* abort */
static int
yylex (void)
{
return 0;
}
]AT_YYERROR_DEFINE[
-
-int
-main (void)
-{
- yydebug = 1;
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
-AT_BISON_CHECK([-o input$1.c input$1.y])
+AT_BISON_CHECK([-o input$1.c input$1.y], [], [],
+[m4_if([$1], [0],
+[[input0.y:30.3-5: warning: useless %destructor for type <*> [-Wother]
+input0.y:30.3-5: warning: useless %printer for type <*> [-Wother]
+]],
+[[input1.y:30.3-4: warning: useless %destructor for type <> [-Wother]
+input1.y:30.3-4: warning: useless %printer for type <> [-Wother]
+]])])
+
AT_COMPILE([input$1])
-AT_PARSER_CHECK([./input$1], 0,
+
+AT_PARSER_CHECK([./input$1 --debug], 0,
[[<]]kind[[> for 'E' @ 1.
<]]kind[[> for 'S' @ 1.
]],
[[Starting parse
Entering state 0
-Reducing stack by rule 1 (line 42):
+Reducing stack by rule 1 (line 49):
-> $$ = nterm start (1.1: <]]kind[[> for 'S' @ 1)
Stack now 0
Entering state 1
m4_popdef([not_kind])
])
-_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(0)
-_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(1)
+AT_TEST(0)
+AT_TEST(1)
+
+m4_popdef([AT_TEST])
AT_CLEANUP
# semantic value, which would be initialized from the lookahead, which
# would be destroyed separately.
# - For $undefined, who knows what the semantic value would be.
-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])
AT_DATA_GRAMMAR([[input.y]],
[[%debug
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE(["abd"], [yylval = res])[
-int
-main (void)
-{
- yydebug = 1;
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
-AT_BISON_CHECK([-o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y], [], [],
+[[input.y:23.6-8: warning: useless %destructor for type <*> [-Wother]
+input.y:23.6-8: warning: useless %printer for type <*> [-Wother]
+]])
AT_COMPILE([input])
-AT_PARSER_CHECK([./input], [1], [],
+AT_PARSER_CHECK([./input --debug], [1], [],
[[Starting parse
Entering state 0
Reading a token: Next token is token 'a' ('a')
# - The %printer and %destructor code generated for $accept would always be
# dead code because $accept is currently never shifted onto the stack.
# - $$ for $accept would always be of type YYSTYPE because it's not possible
-# to declare `%type <field> $accept'. (Also true for $undefined.)
+# to declare '%type <field> $accept'. (Also true for $undefined.)
# - Thus, the compiler might complain that the user code assumes the wrong
# type for $$ since the code might assume the type associated with a
# specific union field, which is especially reasonable in C++ since that
# true for $undefined and the error token, so there are three warnings for
# %printer and three for %destructor.)
-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])
AT_DATA_GRAMMAR([[input.y]],
[[%debug /* So that %printer is actually compiled. */
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE[
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
-AT_BISON_CHECK([-o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y], [], [],
+[[input.y:24.3-4: warning: useless %destructor for type <> [-Wother]
+input.y:24.3-4: warning: useless %printer for type <> [-Wother]
+]])
AT_COMPILE([input])
AT_CLEANUP
AT_SETUP([Default %printer and %destructor for mid-rule values])
-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])
AT_DATA_GRAMMAR([[input.y]],
[[%debug /* So that %printer is actually compiled. */
%{
-# include <stdio.h>
-# include <stdlib.h>
]AT_YYERROR_DECLARE[
]AT_YYLEX_DECLARE[
# define USE(SYM)
# define YYLTYPE int
# define YYLLOC_DEFAULT(Current, Rhs, N) (void)(Rhs)
-# define YY_LOCATION_PRINT(File, Loc)
+# define LOCATION_PRINT(File, Loc)
%}
%printer { fprintf (yyoutput, "%d", @$); } <>
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE[
-int
-main (void)
-{
- yydebug = 1;
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([-o input.c input.y], 0,,
-[[input.y:33.3-23: warning: unset value: $$
-input.y:32.3-23: warning: unused value: $3
+[[input.y:24.70-72: warning: useless %destructor for type <*> [-Wother]
+input.y:24.70-72: warning: useless %printer for type <*> [-Wother]
+input.y:33.3-23: warning: unset value: $$ [-Wother]
+input.y:32.3-23: warning: unused value: $3 [-Wother]
]])
AT_BISON_CHECK([-fcaret -o input.c input.y], 0,,
-[[input.y:33.3-23: warning: unset value: $$
+[[input.y:24.70-72: warning: useless %destructor for type <*> [-Wother]
+ %printer { fprintf (yyoutput, "<*> printer should not be called"); } <*>
+ ^^^
+input.y:24.70-72: warning: useless %printer for type <*> [-Wother]
+ %printer { fprintf (yyoutput, "<*> printer should not be called"); } <*>
+ ^^^
+input.y:33.3-23: warning: unset value: $$ [-Wother]
{ @$ = 4; } // Only used.
^^^^^^^^^^^^^^^^^^^^^
-input.y:32.3-23: warning: unused value: $3
+input.y:32.3-23: warning: unused value: $3 [-Wother]
{ USE ($$); @$ = 3; } // Only set.
^^^^^^^^^^^^^^^^^^^^^
]])
AT_COMPILE([input])
-AT_PARSER_CHECK([./input], 1,,
+AT_PARSER_CHECK([./input --debug], 1,,
[[Starting parse
Entering state 0
Reducing stack by rule 1 (line 30):
# -------------------------------------------
m4_define([AT_CHECK_ACTION_LOCATIONS],
[AT_SETUP([[@$ in ]$1[ implies %locations]])
-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])
AT_DATA_GRAMMAR([[input.y]],
[[%code {
#include <stdio.h>
}
]AT_YYERROR_DEFINE[
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_CHECK([[-o input.c input.y]])
## Qualified $$ in actions. ##
## ------------------------- ##
-# Check that we can used qualified $$ (v.g., $<type>$) not only in
-# rule actions, but also where $$ is valid: %printer and %destructor.
+# Check that we can use qualified $$ (v.g., $<type>$) not only in rule
+# actions, but also where $$ is valid: %destructor/%printer and
+# %initial-action.
#
# FIXME: Not actually checking %destructor, but it's the same code as
# %printer...
m4_pushdef([AT_TEST],
[AT_SETUP([[Qualified $$ in actions: $1]])
-AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1"])
+AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %debug])
AT_DATA_GRAMMAR([[input.y]],
[[%skeleton "$1"
-%defines // FIXME: Mandated by lalr1.cc in Bison 2.6.
-%locations // FIXME: Mandated by lalr1.cc in Bison 2.6.
%debug
%code requires
{
EOF}]],
[[{UNTYPED, INT, EOF}]]),
[AT_VAL.ival = toknum * 10; AT_VAL.fval = toknum / 10.0;])[
-int
-main (void)
-{]AT_SKEL_CC_IF([[
- yy::parser p;
- p.set_debug_level(1);
- return p.parse ();]], [[
- yydebug = 1;
- return yyparse ();]])[
-}
+]AT_MAIN_DEFINE[
]])
AT_FULL_COMPILE([[input]])
-AT_PARSER_CHECK([./input], 0, [], [stderr])
+AT_PARSER_CHECK([./input --debug], 0, [], [stderr])
# Don't be too picky on the traces, GLR is not exactly the same. Keep
# only the lines from the printer.
-#
-# Don't care about locations. FIXME: remove their removal when Bison
-# supports C++ without locations.
-AT_CHECK([[sed -ne 's/([-0-9.]*: /(/;/ival:/p' stderr]], 0,
+AT_CHECK([[sed -ne '/ival:/p' stderr]], 0,
[[Reading a token: Next token is token UNTYPED (ival: 10, fval: 0.1)
Shifting token UNTYPED (ival: 10, fval: 0.1)
Reading a token: Next token is token INT (ival: 20, fval: 0.2)
m4_popdef([AT_TEST])
-## ----------------------------------------------- ##
-## Fix user actions without a trailing semicolon. ##
-## ----------------------------------------------- ##
-
-AT_SETUP([[Fix user actions without a trailing semicolon]])
-
-# This feature is undocumented, but we accidentally broke it in 2.3a,
-# and there was a complaint at:
-# <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
-AT_BISON_OPTION_PUSHDEFS
-AT_DATA([input.y],
-[[%%
-start: test2 test1 test0 testc;
-
-test2
-: 'a' { semi; /* TEST:N:2 */ }
-| 'b' { if (0) {no_semi} /* TEST:N:2 */ }
-| 'c' { if (0) {semi;} /* TEST:N:2 */ }
-| 'd' { semi; no_semi /* TEST:Y:2 */ }
-| 'e' { semi(); no_semi() /* TEST:Y:2 */ }
-| 'f' { semi[]; no_semi[] /* TEST:Y:2 */ }
-| 'g' { semi++; no_semi++ /* TEST:Y:2 */ }
-| 'h' { {no_semi} no_semi /* TEST:Y:2 */ }
-| 'i' { {semi;} no_semi /* TEST:Y:2 */ }
-;
-test1
- : 'a' { semi; // TEST:N:1 ;
-} | 'b' { if (0) {no_semi} // TEST:N:1 ;
-} | 'c' { if (0) {semi;} // TEST:N:1 ;
-} | 'd' { semi; no_semi // TEST:Y:1 ;
-} | 'e' { semi(); no_semi() // TEST:Y:1 ;
-} | 'f' { semi[]; no_semi[] // TEST:Y:1 ;
-} | 'g' { semi++; no_semi++ // TEST:Y:1 ;
-} | 'h' { {no_semi} no_semi // TEST:Y:1 ;
-} | 'i' { {semi;} no_semi // TEST:Y:1 ;
-} ;
-test0
- : 'a' { semi; // TEST:N:1 {}
-} | 'b' { if (0) {no_semi} // TEST:N:1 {}
-} | 'c' { if (0) {semi;} // TEST:N:1 {}
-} | 'd' { semi; no_semi // TEST:Y:1 {}
-} | 'e' { semi(); no_semi() // TEST:Y:1 {}
-} | 'f' { semi[]; no_semi[] // TEST:Y:1 {}
-} | 'g' { semi++; no_semi++ // TEST:Y:1 {}
-} | 'h' { {no_semi} no_semi // TEST:Y:1 {}
-} | 'i' { {semi;} no_semi // TEST:Y:1 {}
-} ;
-
-testc
-: 'a' {
-#define TEST_MACRO_N \
-[]"broken\" $ @ $$ @$ [];\
-string;"}
-| 'b' {
-no_semi
-#define TEST_MACRO_N \
-[]"broken\" $ @ $$ @$ [];\
-string;"}
-]])
-AT_BISON_OPTION_POPDEFS
-
-AT_BISON_CHECK([[-o input.c input.y]], [0], [],
-[[input.y:8.48: warning: a ';' might be needed at the end of action code
-input.y:8.48: future versions of Bison will not add the ';'
-input.y:9.48: warning: a ';' might be needed at the end of action code
-input.y:9.48: future versions of Bison will not add the ';'
-input.y:10.48: warning: a ';' might be needed at the end of action code
-input.y:10.48: future versions of Bison will not add the ';'
-input.y:11.48: warning: a ';' might be needed at the end of action code
-input.y:11.48: future versions of Bison will not add the ';'
-input.y:12.48: warning: a ';' might be needed at the end of action code
-input.y:12.48: future versions of Bison will not add the ';'
-input.y:13.48: warning: a ';' might be needed at the end of action code
-input.y:13.48: future versions of Bison will not add the ';'
-input.y:20.1: warning: a ';' might be needed at the end of action code
-input.y:20.1: future versions of Bison will not add the ';'
-input.y:21.1: warning: a ';' might be needed at the end of action code
-input.y:21.1: future versions of Bison will not add the ';'
-input.y:22.1: warning: a ';' might be needed at the end of action code
-input.y:22.1: future versions of Bison will not add the ';'
-input.y:23.1: warning: a ';' might be needed at the end of action code
-input.y:23.1: future versions of Bison will not add the ';'
-input.y:24.1: warning: a ';' might be needed at the end of action code
-input.y:24.1: future versions of Bison will not add the ';'
-input.y:25.1: warning: a ';' might be needed at the end of action code
-input.y:25.1: future versions of Bison will not add the ';'
-input.y:31.1: warning: a ';' might be needed at the end of action code
-input.y:31.1: future versions of Bison will not add the ';'
-input.y:32.1: warning: a ';' might be needed at the end of action code
-input.y:32.1: future versions of Bison will not add the ';'
-input.y:33.1: warning: a ';' might be needed at the end of action code
-input.y:33.1: future versions of Bison will not add the ';'
-input.y:34.1: warning: a ';' might be needed at the end of action code
-input.y:34.1: future versions of Bison will not add the ';'
-input.y:35.1: warning: a ';' might be needed at the end of action code
-input.y:35.1: future versions of Bison will not add the ';'
-input.y:36.1: warning: a ';' might be needed at the end of action code
-input.y:36.1: future versions of Bison will not add the ';'
-]])
-
-AT_MATCHES_CHECK([input.c], [[/\* TEST:N:2 \*/ \}$]], [[3]])
-AT_MATCHES_CHECK([input.c], [[/\* TEST:Y:2 \*/ ;\}$]], [[6]])
-AT_MATCHES_CHECK([input.c], [[// TEST:N:1 [;{}]*\n\}$]], [[6]])
-AT_MATCHES_CHECK([input.c], [[// TEST:Y:1 [;{}]*\n;\}$]], [[12]])
-AT_MATCHES_CHECK([input.c], [[#define TEST_MACRO_N \\\n\[\]"broken\\" \$ \@ \$\$ \@\$ \[\];\\\nstring;"\}]], [[2]])
-
-AT_CLEANUP
-
-
## -------------------------------------------------- ##
## Destroying lookahead assigned by semantic action. ##
## -------------------------------------------------- ##
// that has set yychar might not always return normally. Instead,
// skeletons must translate before every use of yytoken.
start: 'a' accept { USE($1); } ;
-accept: /*empty*/ {
+accept: %empty {
assert (yychar == YYEMPTY);
yychar = 'b';
YYACCEPT;
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE(["a"])[
-int
-main (void)
-{
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
AT_BISON_CHECK([[-o input.c input.y]])
AT_SETUP([[YYBACKUP]])
-AT_BISON_OPTION_PUSHDEFS([%pure-parser])
+AT_BISON_OPTION_PUSHDEFS([%pure-parser %debug])
AT_DATA_GRAMMAR([input.y],
[[
%%
]AT_YYERROR_DEFINE[
]AT_YYLEX_DEFINE(["bcd"], [*lvalp = (toknum + 1) * 10])[
-
-int
-main (void)
-{
- yydebug = !!getenv("YYDEBUG");
- return yyparse ();
-}
+]AT_MAIN_DEFINE[
]])
AT_BISON_OPTION_POPDEFS
projects / bison.git / blobdiff