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* data/bison.c++: Catch up with bison.simple:

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2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
and Paul Eggert  <eggert@twinsun.com>: `error' handing.
2002-05-26  Akim Demaille  <akim@epita.fr>: stos_, token_number_,
and popping traces.
This commit is contained in:
Akim Demaille
2002-05-28 09:53:35 +00:00
parent 7067cb3620
commit 769b430fce
3 changed files with 85 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

103
data/bison.c++
View File

@@ -272,6 +272,8 @@ namespace yy
static const RhsNumberType rhs_[[]];
static const b4_uint_type(b4_prhs_max) prhs_[[]];
static const b4_uint_type(b4_rline_max) rline_[[]];
static const b4_uint_type(b4_stos_max) stos_[[]];
static const short token_number_[[]];
#endif
/* Even more tables. */
@@ -567,47 +569,62 @@ yy::b4_name::parse ()
token. */
errstatus = 3;
goto yyerrhandle;
/* Pop the current state because it cannot handle the error token. */
yyerrdefault:
yyerrpop:
if (!state_stack_.height ())
goto yyabortlab;
state_ = (state_stack_.pop (), state_stack_[[0]]);
semantic_stack_.pop ();
location_stack_.pop ();;
for (;;)
{
n_ = pact_[[state_]];
if (n_ != flag_)
{
n_ += terror_;
if (0 <= n_ && n_ <= last_ && check_[[n_]] == terror_)
{
n_ = table_[[n_]];
if (0 < n_)
break;
}
}
/* Pop the current state because it cannot handle the error token. */
if (!state_stack_.height ())
goto yyabortlab;
#if YYDEBUG
if (debug_)
{
YYFPRINTF (stderr, "Error: state stack now");
for (StateStack::ConstIterator i = state_stack_.begin ();
i != state_stack_.end (); ++i)
YYFPRINTF (stderr, " %d", *i);
YYFPRINTF (stderr, "\n");
}
if (debug_)
{
if (stos_[[state_]] < ntokens_)
{
YYFPRINTF (stderr, "Error: popping token %d (%s",
token_number_[[stos_[state_]]],
name_[[stos_[state_]]]);
# ifdef YYPRINT
YYPRINT (stderr, token_number_[[stos_[state_]]],
semantic_stack_.top ());
# endif
YYFPRINTF (stderr, ")\n");
}
else
{
YYFPRINTF (stderr, "Error: popping nonterminal (%s)\n",
name_[[stos_[state_]]]);
}
}
#endif
yyerrhandle:
n_ = pact_[[state_]];
if (n_ == flag_)
goto yyerrdefault;
state_ = (state_stack_.pop (), state_stack_[[0]]);
semantic_stack_.pop ();
location_stack_.pop ();;
n_ += terror_;
if (n_ < 0 || n_ > last_ || check_[[n_]] != terror_)
goto yyerrdefault;
n_ = table_[[n_]];
if (n_ < 0)
{
if (n_ == flag_)
goto yyerrpop;
n_ = -n_;
goto yyreduce;
#if YYDEBUG
if (debug_)
{
YYFPRINTF (stderr, "Error: state stack now");
for (StateStack::ConstIterator i = state_stack_.begin ();
i != state_stack_.end (); ++i)
YYFPRINTF (stderr, " %d", *i);
YYFPRINTF (stderr, "\n");
}
#endif
}
else if (!n_)
goto yyerrpop;
if (n_ == final_)
goto yyacceptlab;
@@ -686,6 +703,24 @@ yy::b4_name::check_[[]] =
b4_check
};
#if YYDEBUG
/* STOS_[[STATE-NUM]] -- The (internal number of the) accessing
symbol of state STATE-NUM. */
const b4_uint_type(b4_stos_max)
yy::b4_name::stos_[[]] =
{
b4_stos
};
/* TOKEN_NUMBER_[[YYLEX-NUM]] -- Internal token number corresponding
to YYLEX-NUM. */
const short
yy::b4_name::token_number_[[]] =
{
b4_toknum
};
#endif
/* YYR1[[YYN]] -- Symbol number of symbol that rule YYN derives. */
const b4_uint_type(b4_r1_max)
yy::b4_name::r1_[[]] =

3
data/bison.simple
View File

@@ -371,7 +371,8 @@ static const char *const yytname[[]] =
};
#endif
/* YYTOKNUM[[YYN]] -- Index in YYTNAME corresponding to YYLEX. */
/* YYTOKNUM[[YYLEX-NUM]] -- Internal token number corresponding to
token YYLEX-NUM. */
static const short yytoknum[[]] =
{
b4_toknum