X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/8405b70c057cf1e117e81a77114b055d7c9b59f1..6501566813190e211a55a44216044135b19259b0:/data/java.m4?ds=sidebyside diff --git a/data/java.m4 b/data/java.m4 index 47b6008a..9ee581a2 100644 --- a/data/java.m4 +++ b/data/java.m4 @@ -2,22 +2,20 @@ # Java language support for Bison -# Copyright (C) 2007 Free Software Foundation, Inc. +# Copyright (C) 2007, 2008 Free Software Foundation, Inc. -# This program is free software; you can redistribute it and/or modify +# 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 2 of the License, or +# 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, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -# 02110-1301 USA +# along with this program. If not, see . # b4_comment(TEXT) @@ -34,21 +32,22 @@ m4_define([b4_flag_value], [b4_flag_if([$1], [true], [false])]) # b4_public_if(TRUE, FALSE) # ------------------------- -b4_percent_define_default([public], 0) +b4_percent_define_default([[public]], [[false]]) m4_define([b4_public_if], [b4_percent_define_flag_if([public], [$1], [$2])]) -# b4_single_class_if(TRUE, FALSE) -# ------------------------------- -b4_percent_define_default([single_class], 0) -m4_define([b4_single_class_if], -[b4_percent_define_flag_if([single_class], [$1], [$2])]) - # b4_abstract_if(TRUE, FALSE) # --------------------------- +b4_percent_define_default([[abstract]], [[false]]) m4_define([b4_abstract_if], -[b4_pure_if([$2], [b4_single_class_if([$2], [$1])])]) +[b4_percent_define_flag_if([abstract], [$1], [$2])]) + + +# b4_lexer_if(TRUE, FALSE) +# ------------------------ +m4_define([b4_lexer_if], +[b4_percent_code_ifdef([[lexer]], [$1], [$2])]) # b4_identification @@ -76,7 +75,7 @@ m4_define([b4_identification], m4_define([b4_int_type], [m4_if(b4_ints_in($@, [-128], [127]), [1], [byte], b4_ints_in($@, [-32768], [32767]), [1], [short], - [int])]) + [int])]) # b4_int_type_for(NAME) # --------------------- @@ -107,7 +106,7 @@ m4_define([b4_token_enum], # ----------------------------------------------------- # Output the definition of the tokens (if there are) as enums. m4_define([b4_token_enums], -[m4_if([$@], [[]], [], +[m4_if([$#$1], [1], [], [/* Tokens. */ m4_map([b4_token_enum], [$@])]) ]) @@ -126,8 +125,8 @@ m4_define([b4_case], [ case $1: ## Default values. ## ## ---------------- ## -m4_define([b4_union_name], [b4_percent_define_get([[union_name]])]) -b4_percent_define_default([[union_name]], [[Object]])]) +m4_define([b4_yystype], [b4_percent_define_get([[stype]])]) +b4_percent_define_default([[stype]], [[Object]])]) m4_define_default([[b4_prefix]], [[YY]])]) b4_percent_define_default([[parser_class_name]], [b4_prefix[]Parser])]) @@ -165,7 +164,7 @@ m4_define([b4_lhs_value], [yyval]) # In this simple implementation, %token and %type have class names # between the angle brackets. m4_define([b4_rhs_value], -[(m4_ifval([$3], [($3)])[](yystack.valueAt ($1-($2))))]) +[(m4_ifval($3, [($3)])[](yystack.valueAt ($1-($2))))]) # b4_lhs_location() # ----------------- @@ -199,25 +198,14 @@ m4_define([b4_parse_param], b4_parse_param)) m4_define([b4_lex_param_decl], [m4_ifset([b4_lex_param], [b4_remove_comma([$1], - [m4_map([b4_lex_param_decl_1], [b4_lex_param])])], + b4_param_decls(b4_lex_param))], [$1])]) -m4_define([b4_lex_param_decl_1], [, $1]) -m4_define([b4_remove_comma], [m4_ifval([$1], [$1, ], [])m4_cdr([m4_cdr($@)])]) - +m4_define([b4_param_decls], + [m4_map([b4_param_decl], [$@])]) +m4_define([b4_param_decl], [, $1]) - -# b4_lex_param_call -# ------------------- -# Extra initialisations of the constructor. -m4_define([b4_lex_param_call], - [m4_ifset([b4_lex_param], - [b4_remove_comma([$1], - [b4_lex_param_calls(b4_lex_param)])], - [$1])]) -m4_define([b4_lex_param_calls], - [m4_map([b4_lex_param_call_1], [$@])]) -m4_define([b4_lex_param_call_1], [, $2]) +m4_define([b4_remove_comma], [m4_ifval($1, [$1, ], [])m4_shift2($@)]) @@ -227,11 +215,22 @@ m4_define([b4_lex_param_call_1], [, $2]) m4_define([b4_parse_param_decl], [m4_ifset([b4_parse_param], [b4_remove_comma([$1], - [m4_map([b4_parse_param_decl_1], - [b4_parse_param])])], + b4_param_decls(b4_parse_param))], [$1])]) -m4_define([b4_parse_param_decl_1], [, $1]) + + +# b4_lex_param_call +# ------------------- +# Delegating the lexer parameters to the lexer constructor. +m4_define([b4_lex_param_call], + [m4_ifset([b4_lex_param], + [b4_remove_comma([$1], + b4_param_calls(b4_lex_param))], + [$1])]) +m4_define([b4_param_calls], + [m4_map([b4_param_call], [$@])]) +m4_define([b4_param_call], [, $2]) @@ -241,12 +240,15 @@ m4_define([b4_parse_param_decl_1], [, $1]) m4_define([b4_parse_param_cons], [m4_ifset([b4_parse_param], [b4_constructor_calls(b4_parse_param)])]) + m4_define([b4_constructor_calls], [m4_map([b4_constructor_call], [$@])]) m4_define([b4_constructor_call], [this.$2 = $2; ]) + + # b4_parse_param_vars # ------------------- # Extra instance variables. @@ -255,14 +257,17 @@ m4_define([b4_parse_param_vars], [ /* User arguments. */ b4_var_decls(b4_parse_param)])]) + m4_define([b4_var_decls], [m4_map_sep([b4_var_decl], [ ], [$@])]) m4_define([b4_var_decl], [ protected final $1;]) + + # b4_maybe_throws(THROWS) # ----------------------- # Expand to either an empty string or "throws THROWS". m4_define([b4_maybe_throws], - [m4_ifval([$1], [throws $1])]) + [m4_ifval($1, [throws $1])])