+2010-04-13 Akim Demaille <demaille@gostai.com>
+
+ test location_type.
+ * tests/local.at (_AT_BISON_OPTION_PUSHDEFS):
+ Define AT_LOCATION_TYPE_IF.
+ (_AT_BISON_OPTION_POPDEFS): Undefine AT_LOCATION_TYPE_IF.
+ * tests/calc.at (_AT_DATA_CALC_Y): When %define location_type is
+ used, provide a user location type and use it.
+ (Simple LALR1 C++ Calculator): Add a test case for location_type.
+
2010-04-13 Akim Demaille <demaille@gostai.com>
tests: check fclose's return value.
[%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 begin;
+ Point end;
+ };
+])[
+ /* Exercise pre-prologue dependency to %union. */
+ typedef int semantic_value;
}
/* Exercise %union. */
#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]])[
+]AT_LOCATION_TYPE_IF([[
+ #define first_line begin.l
+ #define first_column begin.c
+ #define last_line end.l
+ #define last_column end.c
+]], [[
+ #define first_line begin.line
+ #define first_column begin.column
+ #define last_line end.line
+ #define last_column end.column
+]])])[
}
%code
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
%initial-action {
@$.initialize (0);
}
-])[
+])])[
/* Bison Declarations */
%token CALC_EOF 0 "end of input"
%%
]AT_SKEL_CC_IF(
-[/* A C++ error reporting function. */
+[AT_LOCATION_TYPE_IF([[
+ std::ostream&
+ operator<< (std::ostream& o, const Span& s)
+ {
+ o << s.begin.l << '.' << s.begin.c;
+ if (s.begin.l != s.end.l)
+ o << '-' << s.end.l << '.' << s.end.c - 1;
+ else if (s.begin.c != s.end.c - 1)
+ o << '-' << s.end.c - 1;
+ return o;
+ }
+]])
+
+/* A C++ error reporting function. */
void
AT_NAME_PREFIX::parser::error (const location_type& l, const std::string& m)
{
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])
[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])
[m4_bmatch([$3], [%language\|%glr-parser\|%skeleton], [$2], [$1])])
m4_pushdef([AT_LEXPARAM_IF],
[m4_bmatch([$3], [%lex-param], [$1], [$2])])
-m4_pushdef([AT_PARAM_IF],
-[m4_bmatch([$3], [%parse-param], [$1], [$2])])
m4_pushdef([AT_LOCATION_IF],
[m4_bmatch([$3], [%locations], [$1], [$2])])
+m4_pushdef([AT_LOCATION_TYPE_IF],
+[m4_bmatch([$3], [%define location_type], [$1], [$2])])
+m4_pushdef([AT_PARAM_IF],
+[m4_bmatch([$3], [%parse-param], [$1], [$2])])
m4_pushdef([AT_PURE_IF],
[m4_bmatch([$3], [%define *api\.pure\|%pure-parser],
[m4_bmatch([$3], [%define *api\.pure *"?false"?], [$2], [$1])],
m4_popdef([AT_NAME_PREFIX])
m4_popdef([AT_GLR_OR_PARAM_IF])
m4_popdef([AT_PURE_AND_LOC_IF])
+m4_popdef([AT_LOCATION_TYPE_IF])
m4_popdef([AT_LOCATION_IF])
m4_popdef([AT_PARAM_IF])
m4_popdef([AT_LEXPARAM_IF])