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Diffstat (limited to 'gnuwin32/bin/data/java.m4')
-rw-r--r-- | gnuwin32/bin/data/java.m4 | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/gnuwin32/bin/data/java.m4 b/gnuwin32/bin/data/java.m4 new file mode 100644 index 00000000..f985f977 --- /dev/null +++ b/gnuwin32/bin/data/java.m4 @@ -0,0 +1,342 @@ + -*- Autoconf -*- + +# Java language support for Bison + +# Copyright (C) 2007-2013 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/[c-like.m4]) + + +# b4_list2(LIST1, LIST2) +# ---------------------- +# Join two lists with a comma if necessary. +m4_define([b4_list2], + [$1[]m4_ifval(m4_quote($1), [m4_ifval(m4_quote($2), [[, ]])])[]$2]) + + +# b4_percent_define_get3(DEF, PRE, POST, NOT) +# ------------------------------------------- +# Expand to the value of DEF surrounded by PRE and POST if it's %define'ed, +# otherwise NOT. +m4_define([b4_percent_define_get3], + [m4_ifval(m4_quote(b4_percent_define_get([$1])), + [$2[]b4_percent_define_get([$1])[]$3], [$4])]) + + + +# b4_flag_value(BOOLEAN-FLAG) +# --------------------------- +m4_define([b4_flag_value], [b4_flag_if([$1], [true], [false])]) + + +# b4_public_if(TRUE, FALSE) +# ------------------------- +b4_percent_define_default([[public]], [[false]]) +m4_define([b4_public_if], +[b4_percent_define_flag_if([public], [$1], [$2])]) + + +# b4_abstract_if(TRUE, FALSE) +# --------------------------- +b4_percent_define_default([[abstract]], [[false]]) +m4_define([b4_abstract_if], +[b4_percent_define_flag_if([abstract], [$1], [$2])]) + + +# b4_final_if(TRUE, FALSE) +# --------------------------- +b4_percent_define_default([[final]], [[false]]) +m4_define([b4_final_if], +[b4_percent_define_flag_if([final], [$1], [$2])]) + + +# b4_strictfp_if(TRUE, FALSE) +# --------------------------- +b4_percent_define_default([[strictfp]], [[false]]) +m4_define([b4_strictfp_if], +[b4_percent_define_flag_if([strictfp], [$1], [$2])]) + + +# b4_lexer_if(TRUE, FALSE) +# ------------------------ +m4_define([b4_lexer_if], +[b4_percent_code_ifdef([[lexer]], [$1], [$2])]) + + +# b4_identification +# ----------------- +m4_define([b4_identification], +[ /** Version number for the Bison executable that generated this parser. */ + public static final String bisonVersion = "b4_version"; + + /** Name of the skeleton that generated this parser. */ + public static final String bisonSkeleton = b4_skeleton; +]) + + +## ------------ ## +## Data types. ## +## ------------ ## + +# b4_int_type(MIN, MAX) +# --------------------- +# Return the smallest int type able to handle numbers ranging from +# MIN to MAX (included). +m4_define([b4_int_type], +[m4_if(b4_ints_in($@, [-128], [127]), [1], [byte], + b4_ints_in($@, [-32768], [32767]), [1], [short], + [int])]) + +# b4_int_type_for(NAME) +# --------------------- +# Return the smallest int type able to handle numbers ranging from +# 'NAME_min' to 'NAME_max' (included). +m4_define([b4_int_type_for], +[b4_int_type($1_min, $1_max)]) + +# b4_null +# ------- +m4_define([b4_null], [null]) + + +# b4_typed_parser_table_define(TYPE, NAME, DATA, COMMENT) +# ------------------------------------------------------- +m4_define([b4_typed_parser_table_define], +[m4_ifval([$4], [b4_comment([$4]) + ])dnl +[private static final ]$1[ yy$2_[] = yy$2_init(); + private static final ]$1[[] yy$2_init() + { + return new ]$1[[] + { + ]$3[ + }; + }]]) + + +# b4_integral_parser_table_define(NAME, DATA, COMMENT) +#----------------------------------------------------- +m4_define([b4_integral_parser_table_define], +[b4_typed_parser_table_define([b4_int_type_for([$2])], [$1], [$2], [$3])]) + + +## ------------------------- ## +## Assigning token numbers. ## +## ------------------------- ## + +# b4_token_enum(TOKEN-NUM) +# ------------------------ +# Output the definition of this token as an enum. +m4_define([b4_token_enum], +[b4_token_format([ /** Token number, to be returned by the scanner. */ + static final int %s = %s; +], [$1])]) + +# b4_token_enums +# -------------- +# Output the definition of the tokens (if there are) as enums. +m4_define([b4_token_enums], +[b4_any_token_visible_if([/* Tokens. */ +b4_symbol_foreach([b4_token_enum])])]) + +# b4-case(ID, CODE) +# ----------------- +# We need to fool Java's stupid unreachable code detection. +m4_define([b4_case], [ case $1: + if (yyn == $1) + $2; + break; + ]) + +# b4_predicate_case(LABEL, CONDITIONS) +# ------------------------------------ +m4_define([b4_predicate_case], [ case $1: + if (! ($2)) YYERROR; + break; + ]) + + +## -------- ## +## Checks. ## +## -------- ## + +b4_percent_define_check_kind([[api.value.type]], [code], [deprecated]) + +b4_percent_define_check_kind([[annotations]], [code], [deprecated]) +b4_percent_define_check_kind([[extends]], [code], [deprecated]) +b4_percent_define_check_kind([[implements]], [code], [deprecated]) +b4_percent_define_check_kind([[init_throws]], [code], [deprecated]) +b4_percent_define_check_kind([[lex_throws]], [code], [deprecated]) +b4_percent_define_check_kind([[parser_class_name]], [code], [deprecated]) +b4_percent_define_check_kind([[throws]], [code], [deprecated]) + + + +## ---------------- ## +## Default values. ## +## ---------------- ## + +m4_define([b4_yystype], [b4_percent_define_get([[api.value.type]])]) +b4_percent_define_default([[api.value.type]], [[Object]]) + +# %name-prefix +m4_define_default([b4_prefix], [[YY]]) + +b4_percent_define_default([[parser_class_name]], [b4_prefix[]Parser]) +m4_define([b4_parser_class_name], [b4_percent_define_get([[parser_class_name]])]) + +b4_percent_define_default([[lex_throws]], [[java.io.IOException]]) +m4_define([b4_lex_throws], [b4_percent_define_get([[lex_throws]])]) + +b4_percent_define_default([[throws]], []) +m4_define([b4_throws], [b4_percent_define_get([[throws]])]) + +b4_percent_define_default([[init_throws]], []) +m4_define([b4_init_throws], [b4_percent_define_get([[init_throws]])]) + +b4_percent_define_default([[api.location.type]], [Location]) +m4_define([b4_location_type], [b4_percent_define_get([[api.location.type]])]) + +b4_percent_define_default([[api.position.type]], [Position]) +m4_define([b4_position_type], [b4_percent_define_get([[api.position.type]])]) + + +## ----------------- ## +## Semantic Values. ## +## ----------------- ## + + +# b4_lhs_value([TYPE]) +# -------------------- +# Expansion of $<TYPE>$. +m4_define([b4_lhs_value], [yyval]) + + +# b4_rhs_value(RULE-LENGTH, NUM, [TYPE]) +# -------------------------------------- +# Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH +# symbols on RHS. +# +# 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-($2))))]) + +# b4_lhs_location() +# ----------------- +# Expansion of @$. +m4_define([b4_lhs_location], +[(yyloc)]) + + +# b4_rhs_location(RULE-LENGTH, NUM) +# --------------------------------- +# Expansion of @NUM, where the current rule has RULE-LENGTH symbols +# on RHS. +m4_define([b4_rhs_location], +[yystack.locationAt ($1-($2))]) + + +# b4_lex_param +# b4_parse_param +# -------------- +# If defined, b4_lex_param arrives double quoted, but below we prefer +# it to be single quoted. Same for b4_parse_param. + +# TODO: should be in bison.m4 +m4_define_default([b4_lex_param], [[]]) +m4_define([b4_lex_param], b4_lex_param) +m4_define([b4_parse_param], b4_parse_param) + +# b4_lex_param_decl +# ----------------- +# Extra formal arguments of the constructor. +m4_define([b4_lex_param_decl], +[m4_ifset([b4_lex_param], + [b4_remove_comma([$1], + b4_param_decls(b4_lex_param))], + [$1])]) + +m4_define([b4_param_decls], + [m4_map([b4_param_decl], [$@])]) +m4_define([b4_param_decl], [, $1]) + +m4_define([b4_remove_comma], [m4_ifval(m4_quote($1), [$1, ], [])m4_shift2($@)]) + + + +# b4_parse_param_decl +# ------------------- +# Extra formal arguments of the constructor. +m4_define([b4_parse_param_decl], +[m4_ifset([b4_parse_param], + [b4_remove_comma([$1], + b4_param_decls(b4_parse_param))], + [$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], [, $2]) + + + +# b4_parse_param_cons +# ------------------- +# Extra initialisations of the constructor. +m4_define([b4_parse_param_cons], + [m4_ifset([b4_parse_param], + [b4_constructor_calls(b4_parse_param)])]) + +m4_define([b4_constructor_calls], + [m4_map([b4_constructor_call], [$@])]) +m4_define([b4_constructor_call], + [this.$2 = $2; + ]) + + + +# b4_parse_param_vars +# ------------------- +# Extra instance variables. +m4_define([b4_parse_param_vars], + [m4_ifset([b4_parse_param], + [ + /* User arguments. */ +b4_var_decls(b4_parse_param)])]) + +m4_define([b4_var_decls], + [m4_map_sep([b4_var_decl], [ +], [$@])]) +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])]) |