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Moving push traces into yypush_.

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* data/lalr1.cc (yypush_): Now takes a optional trace message.
	Adjust all uses.
This commit is contained in:
Akim Demaille
2008-07-31 11:23:34 +02:00
parent 8901f32e4a
commit 9380cfd008
2 changed files with 20 additions and 12 deletions
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6
ChangeLog
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@@ -1,3 +1,9 @@
2008-11-07 Akim Demaille <demaille@gostai.com>
Moving push traces into yypush_.
* data/lalr1.cc (yypush_): Now takes a optional trace message.
Adjust all uses.
2008-11-07 Akim Demaille <demaille@gostai.com>
The single-stack C++ parser is now the standard one.

26
data/lalr1.cc
View File

@@ -485,8 +485,13 @@ m4_ifdef([b4_stype],
stack_type yystack_;
/// Push a new state on the stack.
/// \param m a debug message to display
/// if null, no trace is output.
/// \param s the state entered
/// \param v semantic value
/// \param l location
/// \warning the contents of \a v is stolen.
inline void yypush_ (state_type s,
inline void yypush_ (const char* m, state_type s,
semantic_type& v, const location_type& l);
/// Pop \a n symbols the three stacks.
@@ -725,9 +730,11 @@ b4_percent_code_get[]dnl
}
void
]b4_parser_class_name[::yypush_ (state_type s,
]b4_parser_class_name[::yypush_ (const char* m, state_type s,
semantic_type& v, const location_type& l)
{
if (m)
YY_SYMBOL_PRINT (m, yystos_[s], v, l);
]b4_variant_if(
[[ yystack_.push (data_type (s, semantic_type(), l));
]b4_symbol_variant([[yystos_[s]]], [[yystack_[0].value]], [build], [v])],
@@ -812,7 +819,7 @@ m4_popdef([b4_at_dollar])])dnl
location values to have been already stored, initialize these
stacks with a primary value. */
yystack_ = stack_type (0);
yypush_ (yystate, yylval, yylloc);
yypush_ (0, yystate, yylval, yylloc);
// A new state was pushed on the stack.
// Invariant: yystate == yystack_[0].state, i.e.,
@@ -873,9 +880,6 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
goto yyreduce;
}
/* Shift the lookahead token. */
YY_SYMBOL_PRINT ("Shifting", yytoken, yylval, yylloc);
/* Discard the token being shifted. */
yychar = yyempty_;
@@ -884,8 +888,9 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
if (yyerrstatus_)
--yyerrstatus_;
/* Shift the lookahead token. */
yystate = yyn;
yypush_ (yystate, yylval, yylloc);
yypush_ ("Shifting", yystate, yylval, yylloc);
goto yynewstate;
/*-----------------------------------------------------------.
@@ -959,7 +964,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
yystate = yytable_[yystate];
else
yystate = yydefgoto_[yyn - yyntokens_];
yypush_ (yystate, yyval, yyloc);
yypush_ (0, yystate, yyval, yyloc);
goto yynewstate;
/*------------------------------------.
@@ -1055,11 +1060,8 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param))[;
YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
/* Shift the error token. */
YY_SYMBOL_PRINT ("Shifting", yystos_[yyn],
yystack_[0].value, yystack_[0].location);
yystate = yyn;
yypush_ (yystate, yylval, yyloc);
yypush_ ("Shifting", yystate, yylval, yyloc);
goto yynewstate;
/* Accept. */