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java: use SymbolType

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The Java enums are very different from the C model.  As a consequence,
one cannot "build" an enum directly from an integer, we must retrieve
it.  That's the purpose of the SymbolType.get class method.

* data/skeletons/java.m4 (b4_symbol_enum, b4_case_code_symbol)
(b4_declare_symbol_enum): New.
* data/skeletons/lalr1.java: Use SymbolType,
SymbolType.YYSYMBOL_YYEMPTY, etc.
* examples/java/calc/Calc.y, tests/local.at: Adjust.
This commit is contained in:
Akim Demaille
2020-03-30 07:45:01 +02:00
parent 7fa23136ca
commit ad31c3cdf4
5 changed files with 102 additions and 48 deletions
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6
tests/local.at
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@@ -975,12 +975,12 @@ m4_define([AT_YYERROR_DEFINE(java)],
System.err.print (]AT_LOCATION_IF([[ctx.getLocation () + ": "]]
+ )["syntax error");
{
int token = ctx.getToken ();
if (token != ctx.EMPTY)
Calc.SymbolType token = ctx.getToken ();
if (token != Calc.SymbolType.YYSYMBOL_YYEMPTY)
System.err.print (" on token @<:@" + ctx.yysymbolName (token) + "@:>@");
}
{
int[] arg = new int[ctx.NTOKENS];
Calc.SymbolType[] arg = new Calc.SymbolType[ctx.NTOKENS];
int n = ctx.yyexpectedTokens (arg, ctx.NTOKENS);
if (0 < n)
{