tests: check that using variants is exception safe

[bison.git] / tests / push.at

diff --git a/tests/push.at b/tests/push.at
index 4f128b26d9791283bf479dcf401fa0af0a534581..7dde2957ef52b5bc0da420aa652615ef7bcab67a 100644 (file)
--- a/tests/push.at
+++ b/tests/push.at
@@ -1,5 +1,6 @@
 # Checking Push Parsing.                            -*- Autotest -*-
-# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# Copyright (C) 2007, 2009-2013 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
@@ -16,24 +17,25 @@
 
 AT_BANNER([[Push Parsing Tests]])
 
-## ---------------------------------------------- ##
-## Push Parsing: Memory Leak for Early Deletion.  ##
-## ---------------------------------------------- ##
+## -------------------------------- ##
+## Memory Leak for Early Deletion.  ##
+## -------------------------------- ##
 
-AT_SETUP([[Push Parsing: Memory Leak for Early Deletion]])
+AT_SETUP([[Memory Leak for Early Deletion]])
 
 # Requires Valgrind.
-
+AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([[input.y]],
 [[
 %{
   #include <assert.h>
   #include <stdio.h>
   #define YYINITDEPTH 1
-  void yyerror (char const *msg);
+]AT_YYERROR_DECLARE[
 %}
 
-%pure-parser %push-parser
+%define api.pure
+%define api.push-pull push
 
 %%
 
@@ -41,11 +43,7 @@ start: 'a' 'b' 'c' ;
 
 %%
 
-void
-yyerror (char const *msg)
-{
-  fprintf (stderr, "%s\n", msg);
-}
+]AT_YYERROR_DEFINE[
 
 int
 main (void)
@@ -59,20 +57,103 @@ main (void)
   /* yypstate_delete used to leak ps->yyss if the stack was reallocated but the
      parse did not return on success, syntax error, or memory exhaustion.  */
   ps = yypstate_new ();
-  assert (yypush_parse (ps, 'a', NULL) == YYPUSH_MORE);
+  assert (yypush_parse (ps, 'a', YY_NULL) == YYPUSH_MORE);
   yypstate_delete (ps);
 
   ps = yypstate_new ();
-  assert (yypush_parse (ps, 'a', NULL) == YYPUSH_MORE);
-  assert (yypush_parse (ps, 'b', NULL) == YYPUSH_MORE);
+  assert (yypush_parse (ps, 'a', YY_NULL) == YYPUSH_MORE);
+  assert (yypush_parse (ps, 'b', YY_NULL) == YYPUSH_MORE);
   yypstate_delete (ps);
 
   return 0;
 }
 ]])
+AT_BISON_OPTION_POPDEFS
 
-AT_CHECK([[bison -o input.c input.y]])
+AT_BISON_CHECK([[-o input.c input.y]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input]])
 
 AT_CLEANUP
+
+## --------------------------- ##
+## Multiple impure instances.  ##
+## --------------------------- ##
+
+AT_SETUP([[Multiple impure instances]])
+
+m4_pushdef([AT_MULTIPLE_IMPURE_INSTANCES_CHECK], [
+AT_BISON_OPTION_PUSHDEFS([%define api.push-pull $1])
+AT_DATA_GRAMMAR([[input.y]],
+[[
+%{
+  #include <assert.h>
+  #include <stdio.h>
+]AT_YYERROR_DECLARE[
+]m4_if([$1], [[both]], [AT_YYLEX_DECLARE([])])[
+%}
+
+%define api.push-pull ]$1[
+
+%%
+
+start: ;
+
+%%
+]AT_YYERROR_DEFINE[
+]m4_if([$1], [[both]], [AT_YYLEX_DEFINE])[
+
+int
+main (void)
+{
+  int i;
+  for (i = 0; i < 2; ++i)
+    {
+      yypstate *ps = yypstate_new ();
+      assert (ps);
+      assert (yypstate_new () == YY_NULL);
+      ]m4_if([$1], [[both]], [[assert (yyparse () == 2)]])[;
+      yychar = 0;
+      assert (yypush_parse (ps) == 0);
+      assert (yypstate_new () == YY_NULL);
+      ]m4_if([$1], [[both]], [[assert (yyparse () == 2)]])[;
+      yypstate_delete (ps);
+    }
+
+  return 0;
+}
+]])
+
+AT_BISON_CHECK([[-o input.c input.y]])
+AT_COMPILE([[input]])
+AT_PARSER_CHECK([[./input]])
+AT_BISON_OPTION_POPDEFS
+])
+
+AT_MULTIPLE_IMPURE_INSTANCES_CHECK([[both]])
+AT_MULTIPLE_IMPURE_INSTANCES_CHECK([[push]])
+
+m4_popdef([AT_MULTIPLE_IMPURE_INSTANCES_CHECK])
+
+AT_CLEANUP
+
+## ----------------------- ##
+## Unsupported Skeletons.  ##
+## ----------------------- ##
+
+AT_SETUP([[Unsupported Skeletons]])
+
+AT_BISON_OPTION_PUSHDEFS
+AT_DATA([[input.y]],
+[[%glr-parser
+%define api.push-pull push
+%%
+start: ;
+]])
+AT_BISON_OPTION_POPDEFS
+
+AT_BISON_CHECK([[input.y]], [[1]], [],
+[[input.y:2.9-21: error: %define variable 'api.push-pull' is not used
+]])
+
+AT_CLEANUP