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lalr1.cc: get rid of yyparse's yystate.

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yystate and yystack_[0].state are equal, keep only the latter.
The former was also used as a temporary variable to compute the
post-reduction state.  Move this computation into an auxiliary
function.

	* data/glr.c (yyLRgotoState): Fuse variable definition and first
	assignment.
	* data/lalr1.cc (yy_lr_goto_state_): New.
	(yyparse): Use it.
	Replace remaining uses of yystate by yystate_[0].state.
	Remove the former.
This commit is contained in:
Akim Demaille
2009-08-16 07:36:39 +02:00
parent c4dc4c4671
commit 7580c37942
3 changed files with 41 additions and 25 deletions
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3
data/glr.c
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@@ -1011,8 +1011,7 @@ yygetLRActions (yyStateNum yystate, int yytoken,
static inline yyStateNum
yyLRgotoState (yyStateNum yystate, yySymbol yylhs)
{
int yyr;
yyr = yypgoto[yylhs - YYNTOKENS] + yystate;
int yyr = yypgoto[yylhs - YYNTOKENS] + yystate;
if (0 <= yyr && yyr <= YYLAST && yycheck[yyr] == yystate)
return yytable[yyr];
else