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 ?÷     # Java skeleton for Bison -*- autoconf -*-

# Copyright (C) 2007-2015 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
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

m4_include(b4_pkgdatadir/[java.m4])

b4_defines_if([b4_fatal([%s: %%defines does not make sense in Java],
              [b4_skeleton])])

# We do not depend on %debug in Java, but pacify warnings about
# non-used flags.
b4_parse_trace_if([0], [0])

m4_define([b4_symbol_no_destructor_assert],
[b4_symbol_if([$1], [has_destructor],
              [b4_fatal([%s: %s: %%destructor does not make sense in Java],
                        [b4_skeleton],
                        [b4_symbol_action_location([$1], [destructor])])])])
b4_symbol_foreach([b4_symbol_no_destructor_assert])

# Setup some macros for api.push-pull.
b4_percent_define_default([[api.push-pull]], [[pull]])
b4_percent_define_check_values([[[[api.push-pull]],
                                 [[pull]], [[push]], [[both]]]])

# Define m4 conditional macros that encode the value
# of the api.push-pull flag.
b4_define_flag_if([pull]) m4_define([b4_pull_flag], [[1]])
b4_define_flag_if([push]) m4_define([b4_push_flag], [[1]])
m4_case(b4_percent_define_get([[api.push-pull]]),
        [pull], [m4_define([b4_push_flag], [[0]])],
        [push], [m4_define([b4_pull_flag], [[0]])])

# Define a macro to be true when api.push-pull has the value "both".
m4_define([b4_both_if],[b4_push_if([b4_pull_if([$1],[$2])],[$2])])

# Handle BISON_USE_PUSH_FOR_PULL for the test suite.  So that push parsing
# tests function as written, do not let BISON_USE_PUSH_FOR_PULL modify the
# behavior of Bison at all when push parsing is already requested.
b4_define_flag_if([use_push_for_pull])
b4_use_push_for_pull_if([
  b4_push_if([m4_define([b4_use_push_for_pull_flag], [[0]])],
             [m4_define([b4_push_flag], [[1]])])])

# Define a macro to encapsulate the parse state variables.
# This allows them to be defined either in parse() when doing
# pull parsing, or as class instance variable when doing push parsing.
m4_define([b4_define_state],[[
    /* Lookahead and lookahead in internal form.  */
    int yychar = yyempty_;
    int yytoken = 0;

    /* State.  */
    int yyn = 0;
    int yylen = 0;
    int yystate = 0;
    YYStack yystack = new YYStack ();
    int label = YYNEWSTATE;

    /* Error handling.  */
    int yynerrs_ = 0;
    ]b4_locations_if([/* The location where the error started.  */
    b4_location_type yyerrloc = null;

    /* Location. */
    b4_location_type yylloc = new b4_location_type (null, null);])[

    /* Semantic value of the lookahead.  */
    ]b4_yystype[ yylval = null;
]])

b4_output_begin([b4_parser_file_name])
b4_copyright([Skeleton implementation for Bison LALR(1) parsers in Java],
             [2007-2015])

b4_percent_define_ifdef([package], [package b4_percent_define_get([package]);
])[/* First part of user declarations.  */
]b4_user_pre_prologue
b4_user_post_prologue
b4_percent_code_get([[imports]])
[/**
 * A Bison parser, automatically generated from <tt>]m4_bpatsubst(b4_file_name, [^"\(.*\)"$], [\1])[</tt>.
 *
 * @@author LALR (1) parser skeleton written by Paolo Bonzini.
 */
]b4_percent_define_get3([annotations], [], [ ])dnl
b4_public_if([public ])dnl
b4_abstract_if([abstract ])dnl
b4_final_if([final ])dnl
b4_strictfp_if([strictfp ])dnl
[class ]b4_parser_class_name[]dnl
b4_percent_define_get3([extends], [ extends ])dnl
b4_percent_define_get3([implements], [ implements ])[
{
  ]b4_identification[
]b4_error_verbose_if([[
  /**