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glr2.cc: factor the computation of the accessing symbol

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* data/skeletons/glr2.cc (yy_accessing_symbol): New, as in glr.c.
Use it.
This commit is contained in:
Akim Demaille
2020-12-20 07:52:05 +01:00
parent 08f657f4a4
commit 718cb1ab38
1 changed files with 13 additions and 7 deletions
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20
data/skeletons/glr2.cc
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@@ -1190,6 +1190,13 @@ class semantic_option {
YYLTYPE yyloc;]])[
};
/** Accessing symbol of state YYSTATE. */
static inline yysymbol_kind_t
yy_accessing_symbol (state_num yystate)
{
return YY_CAST (yysymbol_kind_t, yystos[yystate]);
}
/** Type of the items in the GLR stack.
* It can be either a glr_state or a semantic_option. The is_state_ field
* indicates which item of the union is valid. */
@@ -1394,12 +1401,12 @@ void glr_state::destroy (char const* yymsg, ]b4_namespace_ref[::]b4_parser_class
{]b4_parse_assert_if([[
check_ ();]])[
if (yyresolved)
yyparser.yy_destroy_ (yymsg, static_cast<yysymbol_kind_t>(yystos[yylrState]),
yyparser.yy_destroy_ (yymsg, yy_accessing_symbol(yylrState),
&semanticVal()]b4_locations_if([, &yyloc])[);
else
{
YY_SYMBOL_PRINT (yymsg << (firstVal() ? " unresolved" : " incomplete"),
static_cast<yysymbol_kind_t>(yystos[yylrState]), YY_NULLPTR, &yyloc);
yy_accessing_symbol(yylrState), YY_NULLPTR, &yyloc);
if (firstVal() != YY_NULLPTR)
{
@@ -1421,7 +1428,6 @@ yypreference (const semantic_option& y0, const semantic_option& y1);
static void
yyuserMerge (int yyn, YYSTYPE* yy0, YYSTYPE* yy1);
/** Left-hand-side symbol for rule #YYRULE. */
static inline yysymbol_kind_t
yylhsNonterm (rule_num yyrule)
@@ -1698,7 +1704,7 @@ class state_stack {
{
std::cerr << " $" << yyi + 1 << " = ";
yyparser.yy_symbol_print_
(static_cast<yysymbol_kind_t>(yystos[yyvsp[yyi - yynrhs + 1].getState().yylrState]),
(yy_accessing_symbol (yyvsp[yyi - yynrhs + 1].getState().yylrState),
&yyvsp[yyi - yynrhs + 1].getState().semanticVal()]b4_locations_if([[,
&]b4_rhs_location(yynrhs, yyi + 1)])[);
if (!yyvsp[yyi - yynrhs + 1].getState().yyresolved)
@@ -1835,7 +1841,7 @@ class state_stack {
{
if (yystates[yyi]->yyresolved)
{
std::string yysym = ]b4_namespace_ref::b4_parser_class[::symbol_name (static_cast<yysymbol_kind_t>(yystos[yystates[yyi]->yylrState]));
std::string yysym = ]b4_namespace_ref::b4_parser_class[::symbol_name (yy_accessing_symbol (yystates[yyi]->yylrState));
if (yystates[yyi-1]->yyposn+1 > yystates[yyi]->yyposn)
std::cerr << std::string(yyindent + 2, ' ') << yysym
<< " <empty>\n";
@@ -2113,7 +2119,7 @@ public:
YYLTYPE yyerrloc;
yyerror_range[2].getState().yyloc = yylloc;
YYLLOC_DEFAULT (yyerrloc, (yyerror_range), 2);]])[
YY_SYMBOL_PRINT ("Shifting", static_cast<yysymbol_kind_t>(yystos[yytable[yyj]]),
YY_SYMBOL_PRINT ("Shifting", yy_accessing_symbol(yytable[yyj]),
&yylval, &yyerrloc);
yyglrShift (create_state_set_index(0), yytable[yyj],
yys->yyposn, yylval]b4_locations_if([, &yyerrloc])[);
@@ -2587,7 +2593,7 @@ public:
if (yyflag != yyok)
{
yyparser.yy_destroy_ ("Cleanup: discarding incompletely merged value for",
static_cast<yysymbol_kind_t>(yystos[yys.yylrState]),
yy_accessing_symbol(yys.yylrState),
&yysval]b4_locations_if([, yylocp])[);
break;
}