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skeletons: use better names when computing a "goto"

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* data/glr.c (yyLRgotoState): Name the symbol argument yysym, instead
of yylhs.
* data/lalr1.cc (yy_lr_goto_state_): Likewise.
* data/lalr1.java (yy_lr_goto_state_): New, modeled after the previous
two routines.
Use it.
This commit is contained in:
Akim Demaille
2013-11-14 16:14:39 +01:00
parent 6d94eebba7
commit edb2e90531
3 changed files with 26 additions and 16 deletions
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22
data/lalr1.java
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@@ -453,6 +453,19 @@ b4_define_state])[
return yyerrstatus_ == 0;
}
/** Compute post-reduction state.
* @@param yystate the current state
* @@param yysym the nonterminal to push on the stack
*/
private int yy_lr_goto_state_ (int yystate, int yysym)
{
int yyr = yypgoto_[yysym - yyntokens_] + yystate;
if (0 <= yyr && yyr <= yylast_ && yycheck_[yyr] == yystate)
return yytable_[yyr];
else
return yydefgoto_[yysym - yyntokens_];
}
private int yyaction (int yyn, YYStack yystack, int yylen) ]b4_maybe_throws([b4_throws])[
{
]b4_yystype[ yyval;
@@ -483,14 +496,7 @@ b4_define_state])[
yylen = 0;
/* Shift the result of the reduction. */
yyn = yyr1_[yyn];
int yystate = yypgoto_[yyn - yyntokens_] + yystack.stateAt (0);
if (0 <= yystate && yystate <= yylast_
&& yycheck_[yystate] == yystack.stateAt (0))
yystate = yytable_[yystate];
else
yystate = yydefgoto_[yyn - yyntokens_];
int yystate = yy_lr_goto_state_ (yystack.stateAt (0), yyr1_[yyn]);
yystack.push (yystate, yyval]b4_locations_if([, yyloc])[);
return YYNEWSTATE;
}