glr: fix ambiguity reports.

[bison.git] / tests / calc.at

diff --git a/tests/calc.at b/tests/calc.at
index 9336113a9c4974a73260bf26b0798a4e2c1b8443..f0e30ad36b495dee52a81e0cdcc6e80358a8bb2a 100644 (file)
--- a/tests/calc.at
+++ b/tests/calc.at
@@ -1,6 +1,6 @@
 # Simple calculator.                         -*- Autotest -*-
 
-# Copyright (C) 2000-2010 Free Software Foundation, Inc.
+# Copyright (C) 2000-2012 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
@@ -55,11 +55,11 @@ get_char (]AT_LEX_FORMALS[)
   last_yylloc = AT_LOC;
   if (res == '\n')
     {
-      AT_LOC.last_line++;
-      AT_LOC.last_column = 1;
+      AT_LOC_LAST_LINE++;
+      AT_LOC_LAST_COLUMN = 1;
     }
   else
-    AT_LOC.last_column++;
+    AT_LOC_LAST_COLUMN++;
 ])[
   return res;
 }
@@ -117,24 +117,20 @@ int
     {
       init = 0;
 ]AT_LOCATION_IF([
-      AT_LOC.last_column = 1;
-      AT_LOC.last_line = 1;
+      AT_LOC_LAST_COLUMN = 1;
+      AT_LOC_LAST_LINE = 1;
 ])[
     }
 
-]AT_LOCATION_IF([
-  AT_LOC.first_column = AT_LOC.last_column;
-  AT_LOC.first_line   = AT_LOC.last_line;
-])[
-
-  /* Skip white space.  */
-  while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t')
+  /* Skip current token, then white spaces.  */
+  do
     {
 ]AT_LOCATION_IF(
-[     AT_LOC.first_column = AT_LOC.last_column;
-      AT_LOC.first_line   = AT_LOC.last_line;
+[     AT_LOC_FIRST_COLUMN = AT_LOC_LAST_COLUMN;
+      AT_LOC_FIRST_LINE   = AT_LOC_LAST_LINE;
 ])[
     }
+  while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t');
 
   /* process numbers   */
   if (c == '.' || isdigit (c))
@@ -160,8 +156,36 @@ AT_SKEL_CC_IF(
 [%define global_tokens_and_yystype])[
 %code requires
 {
-/* Exercise pre-prologue dependency to %union.  */
-typedef int semantic_value;
+]AT_LOCATION_TYPE_IF([[
+# include <iostream>
+  struct Point
+  {
+    int l;
+    int c;
+  };
+
+  struct Span
+  {
+    Point first;
+    Point last;
+  };
+
+# define YYLLOC_DEFAULT(Current, Rhs, N)                                \
+  do                                                                    \
+    if (N)                                                              \
+      {                                                                 \
+        (Current).first = YYRHSLOC (Rhs, 1).first;                      \
+        (Current).last  = YYRHSLOC (Rhs, N).last;                       \
+      }                                                                 \
+    else                                                                \
+      {                                                                 \
+        (Current).first = (Current).last = YYRHSLOC (Rhs, 0).last;      \
+      }                                                                 \
+  while (false)
+
+]])[
+  /* Exercise pre-prologue dependency to %union.  */
+  typedef int semantic_value;
 }
 
 /* Exercise %union. */
@@ -178,10 +202,7 @@ extern FILE *input;]AT_SKEL_CC_IF([[
 #ifndef YYLTYPE
 # define YYLTYPE ]AT_NAME_PREFIX[::parser::location_type
 #endif
-#define first_line   begin.line
-#define first_column begin.column
-#define last_line    end.line
-#define last_column  end.column]])[
+]])[
 }
 
 %code
@@ -200,6 +221,7 @@ FILE *input;
 static semantic_value global_result = 0;
 static int global_count = 0;
 static int power (int base, int exponent);
+
 ]AT_SKEL_CC_IF(,
 [/* yyerror receives the location if:
    - %location & %pure & %glr
@@ -211,8 +233,8 @@ static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
 int yylex (]AT_LEX_FORMALS[);
 }
 
-]AT_SKEL_CC_IF(
-[/* The lalr1.cc skeleton, for backward compatibility, defines
+]AT_SKEL_CC_IF([AT_LOCATION_TYPE_IF([], [
+/* The lalr1.cc skeleton, for backward compatibility, defines
    a constructor for position that initializes the filename.  The
    glr.cc skeleton does not (and in fact cannot: location/position
    are stored in a union, from which objects with constructors are
@@ -220,7 +242,7 @@ int yylex (]AT_LEX_FORMALS[);
 %initial-action {
   @$.initialize (0);
 }
-])[
+])])[
 
 /* Bison Declarations */
 %token CALC_EOF 0 "end of input"
@@ -267,7 +289,20 @@ exp:
 %%
 
 ]AT_SKEL_CC_IF(
-[/* A C++ error reporting function.  */
+[AT_LOCATION_TYPE_IF([[
+  std::ostream&
+  operator<< (std::ostream& o, const Span& s)
+  {
+    o << s.first.l << '.' << s.first.c;
+    if (s.first.l != s.last.l)
+      o << '-' << s.last.l << '.' << s.last.c - 1;
+    else if (s.first.c != s.last.c - 1)
+      o << '-' << s.last.c - 1;
+    return o;
+  }
+]])
+
+/* A C++ error reporting function.  */
 void
 AT_NAME_PREFIX::parser::error (const location_type& l, const std::string& m)
 {
@@ -295,13 +330,13 @@ yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
 AT_PARAM_IF([(void) result; (void) count;])
 AT_YYERROR_SEES_LOC_IF([
   fprintf (stderr, "%d.%d",
-           AT_LOC.first_line, AT_LOC.first_column);
-  if (AT_LOC.first_line != AT_LOC.last_line)
+           AT_LOC_FIRST_LINE, AT_LOC_FIRST_COLUMN);
+  if (AT_LOC_FIRST_LINE != AT_LOC_LAST_LINE)
     fprintf (stderr, "-%d.%d",
-            AT_LOC.last_line,  AT_LOC.last_column - 1);
-  else if (AT_LOC.first_column != AT_LOC.last_column - 1)
+            AT_LOC_LAST_LINE,  AT_LOC_LAST_COLUMN - 1);
+  else if (AT_LOC_FIRST_COLUMN != AT_LOC_LAST_COLUMN - 1)
     fprintf (stderr, "-%d",
-            AT_LOC.last_column - 1);
+            AT_LOC_LAST_COLUMN - 1);
   fprintf (stderr, ": ");])
   fprintf (stderr, "%s\n", s);
 }])[
@@ -312,8 +347,7 @@ static int
 power (int base, int exponent)
 {
   int res = 1;
-  if (exponent < 0)
-    exit (3);
+  assert (0 <= exponent);
   for (/* Niente */; exponent; --exponent)
     res *= base;
   return res;
@@ -576,6 +610,7 @@ AT_CHECK_CALC_LALR()
 
 AT_CHECK_CALC_LALR([%defines])
 AT_CHECK_CALC_LALR([%locations])
+
 AT_CHECK_CALC_LALR([%name-prefix="calc"]) dnl test deprecated `='
 AT_CHECK_CALC_LALR([%verbose])
 AT_CHECK_CALC_LALR([%yacc])
@@ -649,8 +684,8 @@ m4_define([AT_CHECK_CALC_LALR1_CC],
 [AT_CHECK_CALC([%language "C++" %defines %locations] $@)])
 
 AT_CHECK_CALC_LALR1_CC([])
+AT_CHECK_CALC_LALR1_CC([%define location_type Span])
 AT_CHECK_CALC_LALR1_CC([%error-verbose %name-prefix "calc" %verbose %yacc])
-
 AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %name-prefix "calc" %verbose %yacc])
 
 AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc])
@@ -676,6 +711,7 @@ m4_define([AT_CHECK_CALC_GLR_CC],
 [AT_CHECK_CALC([%language "C++" %glr-parser %defines %locations] $@)])
 
 AT_CHECK_CALC_GLR_CC([])
+AT_CHECK_CALC_GLR_CC([%define location_type Span])
 AT_CHECK_CALC_GLR_CC([%error-verbose %name-prefix "calc" %verbose %yacc])
 
 AT_CHECK_CALC_GLR_CC([%debug])