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java: fixes in SymbolType

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Reported by Paolo Bonzini.
https://github.com/akimd/bison/pull/34#issuecomment-609029634

* data/skeletons/java.m4 (SymbolType): Use 'final' where possible.
(get): Rewrite on top of an array instead of a switch.
This commit is contained in:
Akim Demaille
2020-04-04 17:11:02 +02:00
parent ad31c3cdf4
commit f6dcecb287
1 changed files with 14 additions and 15 deletions
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29
data/skeletons/java.m4
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@@ -163,10 +163,6 @@ m4_define([b4_symbol_enum],
b4_symbol([$1], [number]))])])
m4_define([b4_case_code_symbol],
[[ case $1: return SymbolType.]b4_symbol([$1], [sid]);
])
# b4_declare_symbol_enum
# ----------------------
# The definition of the symbol internal numbers as an enum.
@@ -176,22 +172,25 @@ m4_define([b4_declare_symbol_enum],
]m4_join([,
],
]b4_symbol_sid([-2])[(-2),
b4_symbol_map([b4_symbol_enum]),
[YYNTOKENS(]b4_tokens_number[); ///< Number of tokens.])[
b4_symbol_map([b4_symbol_enum]))[;
private int code;
private final int code_;
SymbolType (int n) {
this.code = n;
this.code_ = n;
}
static SymbolType get (int code) {
switch (code) {
default: return YYSYMBOL_YYUNDEF;
]b4_symbol_foreach([b4_case_code_symbol])[
}
private static final SymbolType[] values_ = {
]m4_map_args_sep([b4_symbol_sid(], [)], [,
], b4_symbol_numbers)[
};
static final SymbolType get (int code) {
return values_[code];
}
int getCode () {
return this.code;
public final int getCode () {
return this.code_;
}
};
]])])