private int yyaction()

in msys2/usr/share/bison/skeletons/lalr1.d [359:399]

• 27 lines of code
• 5 McCabe index (conditional complexity)

  private int yyaction (int yyn, ref YYStack yystack, int yylen)
  {
    ]b4_yystype[ yyval;
    ]b4_locations_if([b4_location_type[ yyloc = yylloc_from_stack (yystack, yylen);]])[

    /* If YYLEN is nonzero, implement the default value of the action:
       `$$ = $1'.  Otherwise, use the top of the stack.

       Otherwise, the following line sets YYVAL to garbage.
       This behavior is undocumented and Bison
       users should not rely upon it.  */
    if (yylen > 0)
      yyval = yystack.valueAt (yylen - 1);
    else
      yyval = yystack.valueAt (0);

    yy_reduce_print (yyn, yystack);

    switch (yyn)
    {
]b4_user_actions[
      default: break;
    }

    yy_symbol_print ("-> $$ =", yyr1_[yyn], yyval]b4_locations_if([, yyloc])[);

    yystack.pop (yylen);
    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_];

    yystack.push (yystate, yyval]b4_locations_if([, yyloc])[);
    return YYNEWSTATE;
  }