%expect-rr is for GLR only

[bison.git] / tests / conflicts.at

diff --git a/tests/conflicts.at b/tests/conflicts.at
index 54df05112fe6344f3e5964319fb0dd1cd80d2b56..169509f2756fa172963218a9022b47576211498c 100644 (file)
--- a/tests/conflicts.at
+++ b/tests/conflicts.at
@@ -1,7 +1,6 @@
 # Exercising Bison on conflicts.                         -*- Autotest -*-
 
 # Exercising Bison on conflicts.                         -*- Autotest -*-
 

-# Copyright (C) 2002-2005, 2007, 2009-2012 Free Software Foundation,
-# Inc.
+# Copyright (C) 2002-2005, 2007-2012 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
 
 # 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


@@ -38,7 +37,7 @@ e: 'e' | /* Nothing. */;
 ]])
 
 AT_BISON_CHECK([-o input.c input.y], 0, [],
 ]])
 
 AT_BISON_CHECK([-o input.c input.y], 0, [],

-[[input.y:4.9: warning: rule useless in parser due to conflicts: e: /* empty */
+[[input.y:4.9: warning: rule useless in parser due to conflicts: e: /* empty */ [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -57,6 +56,7 @@ AT_DATA_GRAMMAR([input.y],
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

+#include <assert.h>

 
 #define YYERROR_VERBOSE 1
 ]AT_YYERROR_DEFINE[
 
 #define YYERROR_VERBOSE 1
 ]AT_YYERROR_DEFINE[


@@ -67,8 +67,7 @@ static int
 yylex (void)
 {
   static size_t toknum;
 yylex (void)
 {
   static size_t toknum;

-  if (! (toknum <= strlen (input)))
-    abort ();
+  assert (toknum <= strlen (input));

   return input[toknum++];
 }
 
   return input[toknum++];
 }
 


@@ -142,11 +141,11 @@ AT_CLEANUP
 
 
 
 
 
 

-## -------------------------------------- ##
-## %error-verbose and consistent errors.  ##
-## -------------------------------------- ##
+## ------------------------------------------- ##
+## parse.error=verbose and consistent errors.  ##
+## ------------------------------------------- ##

 
 

-AT_SETUP([[%error-verbose and consistent errors]])
+AT_SETUP([[parse.error=verbose and consistent errors]])

 
 m4_pushdef([AT_CONSISTENT_ERRORS_CHECK], [
 
 
 m4_pushdef([AT_CONSISTENT_ERRORS_CHECK], [
 


@@ -164,7 +163,6 @@ AT_SKEL_JAVA_IF([AT_DATA], [AT_DATA_GRAMMAR])([input.y],
 }]], [[
 
 %code {]AT_SKEL_CC_IF([[
 }]], [[
 
 %code {]AT_SKEL_CC_IF([[

-  #include <cassert>

   #include <string>]], [[
   #include <assert.h>
   #include <stdio.h>
   #include <string>]], [[
   #include <assert.h>
   #include <stdio.h>


@@ -177,7 +175,7 @@ AT_SKEL_JAVA_IF([AT_DATA], [AT_DATA_GRAMMAR])([input.y],
 
 ]$1[
 
 
 ]$1[
 

-%error-verbose
+%define parse.error verbose

 
 %%
 
 
 %%
 


@@ -372,7 +370,7 @@ error-reduce:
 ;
 
 consistent-reduction: /*empty*/ {
 ;
 
 consistent-reduction: /*empty*/ {

-  assert (yychar == ]AT_SKEL_CC_IF([[yyempty_]], [[YYEMPTY]])[);
+  assert (yychar == YYEMPTY);

   yylval = 0;
   yychar = 'b';
 } ;
   yylval = 0;
   yychar = 'b';
 } ;


@@ -396,11 +394,7 @@ AT_CONSISTENT_ERRORS_CHECK([[%glr-parser]],
                            [AT_USER_ACTION_GRAMMAR],
                            [AT_USER_ACTION_INPUT],
                            [['b']], [[none]])
                            [AT_USER_ACTION_GRAMMAR],
                            [AT_USER_ACTION_INPUT],
                            [['b']], [[none]])

-AT_CONSISTENT_ERRORS_CHECK([[%language "c++"]],
-                           [AT_USER_ACTION_GRAMMAR],
-                           [AT_USER_ACTION_INPUT],
-                           [['b']], [[none]])
-# No Java test because yychar cannot be manipulated by users.
+# No C++ or Java test because yychar cannot be manipulated by users.

 
 AT_CONSISTENT_ERRORS_CHECK([[%define lr.default-reductions consistent]],
                            [AT_USER_ACTION_GRAMMAR],
 
 AT_CONSISTENT_ERRORS_CHECK([[%define lr.default-reductions consistent]],
                            [AT_USER_ACTION_GRAMMAR],


@@ -491,7 +485,7 @@ reduce-nonassoc: %prec 'a';
 
 %%
 ]AT_YYERROR_DEFINE[
 
 %%
 ]AT_YYERROR_DEFINE[

-]AT_YYLEX_DEFINE([aaa])[
+]AT_YYLEX_DEFINE(["aaa"])[

 
 int
 main (void)
 
 int
 main (void)


@@ -741,6 +735,62 @@ state 5
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

+## ---------------------- ##
+## %precedence suffices.  ##
+## ---------------------- ##
+
+AT_SETUP([%precedence suffices])
+
+AT_DATA([input.y],
+[[%precedence "then"
+%precedence "else"
+%%
+stmt:
+  "if" cond "then" stmt
+| "if" cond "then" stmt "else" stmt
+| "stmt"
+;
+
+cond:
+  "exp"
+;
+]])
+
+AT_BISON_CHECK([-o input.c input.y])
+
+AT_CLEANUP
+
+
+## ------------------------------ ##
+## %precedence does not suffice.  ##
+## ------------------------------ ##
+
+AT_SETUP([%precedence does not suffice])
+
+AT_DATA([input.y],
+[[%precedence "then"
+%precedence "else"
+%%
+stmt:
+  "if" cond "then" stmt
+| "if" cond "then" stmt "else" stmt
+| "stmt"
+;
+
+cond:
+  "exp"
+| cond "then" cond
+;
+]])
+
+AT_BISON_CHECK([-o input.c input.y], 0, [],
+[[input.y: conflicts: 1 shift/reduce
+input.y:12.3-18: warning: rule useless in parser due to conflicts: cond: cond "then" cond [-Wother]
+]])
+
+AT_CLEANUP
+
+

 ## -------------------------------- ##
 ## Defaulted Conflicted Reduction.  ##
 ## -------------------------------- ##
 ## -------------------------------- ##
 ## Defaulted Conflicted Reduction.  ##
 ## -------------------------------- ##


@@ -779,7 +829,7 @@ id : '0';
 
 AT_BISON_CHECK([-o input.c --report=all input.y], 0, [],
 [[input.y: conflicts: 1 reduce/reduce
 
 AT_BISON_CHECK([-o input.c --report=all input.y], 0, [],
 [[input.y: conflicts: 1 reduce/reduce

-input.y:4.6-8: warning: rule useless in parser due to conflicts: id: '0'
+input.y:4.6-8: warning: rule useless in parser due to conflicts: id: '0' [-Wother]

 ]])
 
 # Check the contents of the report.
 ]])
 
 # Check the contents of the report.


@@ -1099,13 +1149,13 @@ reported_conflicts:
 
 AT_BISON_CHECK([[--report=all input.y]], 0, [],
 [[input.y: conflicts: 1 shift/reduce, 1 reduce/reduce
 
 AT_BISON_CHECK([[--report=all input.y]], 0, [],
 [[input.y: conflicts: 1 shift/reduce, 1 reduce/reduce

-input.y:12.5-20: warning: rule useless in parser due to conflicts: resolved_conflict: 'a' unreachable1
-input.y:20.5-20: warning: rule useless in parser due to conflicts: unreachable1: 'a' unreachable2
-input.y:21.4: warning: rule useless in parser due to conflicts: unreachable1: /* empty */
-input.y:25.13: warning: rule useless in parser due to conflicts: unreachable2: /* empty */
-input.y:25.16: warning: rule useless in parser due to conflicts: unreachable2: /* empty */
-input.y:31.5-7: warning: rule useless in parser due to conflicts: reported_conflicts: 'a'
-input.y:32.4: warning: rule useless in parser due to conflicts: reported_conflicts: /* empty */
+input.y:12.5-20: warning: rule useless in parser due to conflicts: resolved_conflict: 'a' unreachable1 [-Wother]
+input.y:20.5-20: warning: rule useless in parser due to conflicts: unreachable1: 'a' unreachable2 [-Wother]
+input.y:21.4: warning: rule useless in parser due to conflicts: unreachable1: /* empty */ [-Wother]
+input.y:25.13: warning: rule useless in parser due to conflicts: unreachable2: /* empty */ [-Wother]
+input.y:25.16: warning: rule useless in parser due to conflicts: unreachable2: /* empty */ [-Wother]
+input.y:31.5-7: warning: rule useless in parser due to conflicts: reported_conflicts: 'a' [-Wother]
+input.y:32.4: warning: rule useless in parser due to conflicts: reported_conflicts: /* empty */ [-Wother]

 ]])
 
 AT_CHECK([[cat input.output]], 0,
 ]])
 
 AT_CHECK([[cat input.output]], 0,


@@ -1251,10 +1301,10 @@ AT_CHECK([[cat input.y >> input-keep.y]])
 
 AT_BISON_CHECK([[input-keep.y]], 0, [],
 [[input-keep.y: conflicts: 2 shift/reduce, 2 reduce/reduce
 
 AT_BISON_CHECK([[input-keep.y]], 0, [],
 [[input-keep.y: conflicts: 2 shift/reduce, 2 reduce/reduce

-input-keep.y:22.4: warning: rule useless in parser due to conflicts: unreachable1: /* empty */
-input-keep.y:26.16: warning: rule useless in parser due to conflicts: unreachable2: /* empty */
-input-keep.y:32.5-7: warning: rule useless in parser due to conflicts: reported_conflicts: 'a'
-input-keep.y:33.4: warning: rule useless in parser due to conflicts: reported_conflicts: /* empty */
+input-keep.y:22.4: warning: rule useless in parser due to conflicts: unreachable1: /* empty */ [-Wother]
+input-keep.y:26.16: warning: rule useless in parser due to conflicts: unreachable2: /* empty */ [-Wother]
+input-keep.y:32.5-7: warning: rule useless in parser due to conflicts: reported_conflicts: 'a' [-Wother]
+input-keep.y:33.4: warning: rule useless in parser due to conflicts: reported_conflicts: /* empty */ [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -1409,9 +1459,40 @@ state 1
 AT_CLEANUP
 
 
 AT_CLEANUP
 
 

-## --------------------------------- ##
-## -W versus %expect and %expect-rr  ##
-## --------------------------------- ##
+## -------------------- ##
+## %expect-rr non GLR.  ##
+## -------------------- ##
+
+AT_SETUP([[%expect-rr non GLR]])
+
+AT_DATA([[1.y]],
+[[%expect-rr 0
+%%
+exp: 'a'
+]])
+
+AT_BISON_CHECK([[1.y]], [[0]], [],
+[[1.y: warning: %expect-rr applies only to GLR parsers [-Wother]
+]])
+
+AT_DATA([[2.y]],
+[[%expect-rr 1
+%%
+exp: 'a' | 'a';
+]])
+
+AT_BISON_CHECK([[2.y]], [[0]], [],
+[[2.y: warning: %expect-rr applies only to GLR parsers [-Wother]
+2.y: conflicts: 1 reduce/reduce
+2.y:3.12-14: warning: rule useless in parser due to conflicts: exp: 'a' [-Wother]
+]])
+
+AT_CLEANUP
+
+
+## ---------------------------------- ##
+## -W versus %expect and %expect-rr.  ##
+## ---------------------------------- ##

 
 AT_SETUP([[-W versus %expect and %expect-rr]])
 
 
 AT_SETUP([[-W versus %expect and %expect-rr]])