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java: document new features

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* data/skeletons/lalr1.java: More comments.
(Context.EMPTY): Remove.
* doc/bison.texi (Java Parser Context Interface): New.
This commit is contained in:
Akim Demaille
2020-04-06 14:48:35 +02:00
parent 3dcfb4fd88
commit 11225a5d2f
2 changed files with 85 additions and 11 deletions
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29
data/skeletons/lalr1.java
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@@ -876,17 +876,20 @@ b4_dollar_popdef[]dnl
private YYStack yystack;
/**
* The symbol kind of the lookahead token.
*/
public SymbolKind getToken ()
{
return yytoken;
}
/**
* Value returned by getToken when there is no token.
*/
public static final int EMPTY = ]b4_parser_class[.YYEMPTY_;
private SymbolKind yytoken;]b4_locations_if([[
/**
* The location of the lookahead.
*/
public ]b4_location_type[ getLocation ()
{
return yylocation;
@@ -895,10 +898,12 @@ b4_dollar_popdef[]dnl
private ]b4_location_type[ yylocation;]])[
static final int NTOKENS = ]b4_parser_class[.YYNTOKENS_;
/* Put in YYARG at most YYARGN of the expected tokens given the
current YYCTX, and return the number of tokens stored in YYARG. If
YYARG is null, return the number of expected tokens (guaranteed to
be less than YYNTOKENS). */
/**
* Put in YYARG at most YYARGN of the expected tokens given the
* current YYCTX, and return the number of tokens stored in YYARG. If
* YYARG is null, return the number of expected tokens (guaranteed to
* be less than YYNTOKENS).
*/
int getExpectedTokens (SymbolKind yyarg[], int yyargn)
{
return getExpectedTokens (yyarg, 0, yyargn);
@@ -933,8 +938,10 @@ b4_dollar_popdef[]dnl
return yycount - yyoffset;
}
/* The user-facing name of the symbol whose (internal) number is
YYSYMBOL. No bounds checking. */
/**
* The user-facing name of the symbol whose (internal) number is
* YYSYMBOL. No bounds checking.
*/
static String yysymbolName (SymbolKind yysymbol)
{
return ]b4_parser_class[.yysymbolName (yysymbol);