doc: clean up quotation style in NEWS.

[bison.git] / tests / actions.at

diff --git a/tests/actions.at b/tests/actions.at
index 32bfc34e4c4a2d59cb4957a09e06fb6dc4cb1c61..7f2d7eed828de60db1f6b7f038623f74c9e6936c 100644 (file)
--- a/tests/actions.at
+++ b/tests/actions.at
@@ -1,6 +1,6 @@
 # Executing Actions.                               -*- Autotest -*-
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
-# Foundation, Inc.
+
+# Copyright (C) 2001-2011 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
@@ -29,7 +29,7 @@ AT_SETUP([Mid-rule actions])
 # action.
 
 AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
 %debug
 %{
 # include <stdio.h>
@@ -93,7 +93,7 @@ AT_CLEANUP
 AT_SETUP([Exotic Dollars])
 
 AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
 %debug
 %{
 # include <stdio.h>
@@ -158,6 +158,52 @@ AT_PARSER_CHECK([./input], 0,
 [[15
 ]])
 
+# Make sure that fields after $n or $-n are parsed correctly.  At one
+# point while implementing dashes in symbol names, we were dropping
+# fields after $-n.
+AT_DATA_GRAMMAR([[input.y]],
+[[
+%{
+# include <stdio.h>
+  static int yylex (void);
+  static void yyerror (char const *msg);
+  typedef struct { int val; } stype;
+# define YYSTYPE stype
+%}
+
+%%
+start: one two { $$.val = $1.val + $2.val; } sum ;
+one: { $$.val = 1; } ;
+two: { $$.val = 2; } ;
+sum: { printf ("%d\n", $0.val + $-1.val + $-2.val); } ;
+
+%%
+
+static int
+yylex (void)
+{
+  return 0;
+}
+
+static void
+yyerror (char const *msg)
+{
+  fprintf (stderr, "%s\n", msg);
+}
+
+int
+main (void)
+{
+  return yyparse ();
+}
+]])
+
+AT_BISON_CHECK([[-o input.c input.y]])
+AT_COMPILE([[input]])
+AT_PARSER_CHECK([[./input]], [[0]],
+[[6
+]])
+
 AT_CLEANUP
 
 
@@ -557,7 +603,7 @@ m4_define([AT_CHECK_PRINTER_AND_DESTRUCTOR],
 
 $3
 _AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], $[4],
-[%error-verbose
+[%define parse.error verbose
 %debug
 %verbose
 %locations
@@ -588,7 +634,7 @@ AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [with union])
 AT_SETUP([Default tagless %printer and %destructor])
 
 AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
 %debug
 %locations
 %initial-action {
@@ -706,7 +752,7 @@ AT_CLEANUP
 AT_SETUP([Default tagged and per-type %printer and %destructor])
 
 AT_DATA_GRAMMAR([[input.y]],
-[[%error-verbose
+[[%define parse.error verbose
 %debug
 
 %{
@@ -850,7 +896,7 @@ m4_define([_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN],
   [m4_pushdef([kind], [*]) m4_pushdef([not_kind], [])])
 
 AT_DATA_GRAMMAR([[input]]$1[[.y]],
-[[%error-verbose
+[[%define parse.error verbose
 %debug
 %locations
 %initial-action {
@@ -1153,7 +1199,7 @@ AT_DATA_GRAMMAR([[input.y]],
   static int yylex (void);
 # define USE(SYM)
 # define YYLTYPE int
-# define YYLLOC_DEFAULT(Current, Rhs, N)
+# define YYLLOC_DEFAULT(Current, Rhs, N) (void)(Rhs)
 # define YY_LOCATION_PRINT(File, Loc)
 %}
 
@@ -1400,20 +1446,82 @@ input.y:35.1: warning: 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: warning: future versions of Bison will not add the `;'
 ]])
-AT_CHECK([[grep -c '/\* TEST:N:2 \*/ }$' input.c]], [0], [[3
-]])
-AT_CHECK([[grep -c '/\* TEST:Y:2 \*/ ;}$' input.c]], [0], [[6
-]])
-AT_CHECK([[sed -n '/TEST:N:1/{N
-s/\n/<NL>/gp}' input.c | grep -c '// TEST:N:1 [;{}]*<NL>}$']], [0], [[6
-]])
-AT_CHECK([[sed -n '/TEST:Y:1/{N
-s/\n/<NL>/gp}' input.c | grep -c '// TEST:Y:1 [;{}]*<NL>;}$']], [0], [[12
+
+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.  ##
+## -------------------------------------------------- ##
+
+AT_SETUP([[Destroying lookahead assigned by semantic action]])
+
+AT_DATA_GRAMMAR([input.y],
+[[
+%code {
+  #include <assert.h>
+  #include <stdio.h>
+  static void yyerror (char const *);
+  static int yylex (void);
+  #define USE(Var)
+}
+
+%destructor { fprintf (stderr, "'a' destructor\n"); } 'a'
+%destructor { fprintf (stderr, "'b' destructor\n"); } 'b'
+
+%%
+
+// In a previous version of Bison, yychar assigned by the semantic
+// action below was not translated into yytoken before the lookahead was
+// discarded and thus before its destructor (selected according to
+// yytoken) was called in order to return from yyparse.  This would
+// happen even if YYACCEPT was performed in a later semantic action as
+// long as only consistent states with default reductions were visited
+// in between.  However, we leave YYACCEPT in the same semantic action
+// for this test in order to show that skeletons cannot simply translate
+// immediately after every semantic action because a 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*/ {
+  assert (yychar == YYEMPTY);
+  yychar = 'b';
+  YYACCEPT;
+} ;
+
+%%
+
+static void
+yyerror (char const *msg)
+{
+  fprintf (stderr, "%s\n", msg);
+}
+
+static int
+yylex (void)
+{
+  static char const *input = "a";
+  return *input++;
+}
+
+int
+main (void)
+{
+  return yyparse ();
+}
 ]])
-AT_CHECK([[sed -n '/^#define TEST_MACRO_N/{N
-N
-s/\n/<NL>/gp}' input.c | grep -F -xc '#define TEST_MACRO_N \<NL>[]"broken\" $ @ $$ @$ [];\<NL>string;"}']],
-       [0], [[2
+
+AT_BISON_CHECK([[-o input.c input.y]])
+AT_COMPILE([[input]])
+AT_PARSER_CHECK([[./input]], [[0]], [],
+[['b' destructor
+'a' destructor
 ]])
 
 AT_CLEANUP