ctkparser.cpp

C-Talk is interpreted scripting language with C-like syntax and dynamic type checking. Variables in

case 56:
#line 215 "parser.y"
{ yyval.expr = new CtkAndExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 57:
#line 216 "parser.y"
{ yyval.expr = new CtkXorExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 58:
#line 217 "parser.y"
{ yyval.expr = new CtkShlExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 59:
#line 218 "parser.y"
{ yyval.expr = new CtkShrExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 60:
#line 220 "parser.y"
{ yyval.expr = new CtkEqExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 61:
#line 221 "parser.y"
{ yyval.expr = new CtkNeExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 62:
#line 222 "parser.y"
{ yyval.expr = new CtkGtExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 63:
#line 223 "parser.y"
{ yyval.expr = new CtkGeExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 64:
#line 224 "parser.y"
{ yyval.expr = new CtkLtExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 65:
#line 225 "parser.y"
{ yyval.expr = new CtkLeExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 66:
#line 227 "parser.y"
{ yyval.expr = new CtkLandExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 67:
#line 228 "parser.y"
{ yyval.expr = new CtkLorExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 68:
#line 230 "parser.y"
{ yyval.expr = new CtkAssignExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 69:
#line 231 "parser.y"
{ yyval.expr = new CtkSetAddExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 70:
#line 232 "parser.y"
{ yyval.expr = new CtkSetSubExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 71:
#line 233 "parser.y"
{ yyval.expr = new CtkSetDivExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 72:
#line 234 "parser.y"
{ yyval.expr = new CtkSetModExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 73:
#line 235 "parser.y"
{ yyval.expr = new CtkSetMulExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 74:
#line 236 "parser.y"
{ yyval.expr = new CtkSetOrExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 75:
#line 237 "parser.y"
{ yyval.expr = new CtkSetXorExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 76:
#line 238 "parser.y"
{ yyval.expr = new CtkSetAndExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 77:
#line 239 "parser.y"
{ yyval.expr = new CtkSetShlExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 78:
#line 240 "parser.y"
{ yyval.expr = new CtkSetShrExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 79:
#line 241 "parser.y"
{ yyval.expr = new CtkCondExpr(yyvsp[-4].expr, yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 80:
#line 242 "parser.y"
{ yyval.expr = new CtkRunThreadExpr(yyvsp[-3].expr, yyvsp[-1].expr); ;
    break;}
case 81:
#line 244 "parser.y"
{ yyval.expr = new CtkVariable(yyvsp[0].tok); ;
    break;}
case 83:
#line 246 "parser.y"
{ yyval.expr = yyvsp[-1].expr; ;
    break;}
case 84:
#line 247 "parser.y"
{ yyval.expr = yyvsp[0].expr; ;
    break;}
case 85:
#line 248 "parser.y"
{ yyval.expr = new CtkNegExpr(yyvsp[0].expr); ;
    break;}
case 86:
#line 249 "parser.y"
{ yyval.expr = new CtkPreDecExpr(yyvsp[0].expr); ;
    break;}
case 87:
#line 250 "parser.y"
{ yyval.expr = new CtkPreIncExpr(yyvsp[0].expr); ;
    break;}
case 88:
#line 251 "parser.y"
{ yyval.expr = new CtkPostDecExpr(yyvsp[-1].expr); ;
    break;}
case 89:
#line 252 "parser.y"
{ yyval.expr = new CtkPostIncExpr(yyvsp[-1].expr); ;
    break;}
case 90:
#line 253 "parser.y"
{ yyval.expr = new CtkNotExpr(yyvsp[0].expr); ;
    break;}
case 91:
#line 254 "parser.y"
{ yyval.expr = new CtkComExpr(yyvsp[0].expr); ;
    break;}
case 92:
#line 255 "parser.y"
{ yyval.expr = new CtkEnvExpr(yyvsp[0].expr); ;
    break;}
case 93:
#line 256 "parser.y"
{ yyval.expr = new CtkArrayConst(yyvsp[-1].pair); ;
    break;}
case 94:
#line 257 "parser.y"
{ yyval.expr = new CtkFuncCallExpr(yyvsp[-3].expr, yyvsp[-1].expr); ;
    break;}
case 95:
#line 258 "parser.y"
{ yyval.expr = new CtkArrayAccessExpr(yyvsp[-3].expr, yyvsp[-1].expr); ;
    break;}
case 96:
#line 259 "parser.y"
{ yyval.expr = new CtkArrayAccessExpr(yyvsp[-2].expr, new CtkStringConst(ctkAllocateStringLiteral(yyvsp[0].tok->name))); ;
    break;}
case 97:
#line 263 "parser.y"
{ yyval.pair = NULL; ;
    break;}
case 100:
#line 266 "parser.y"
{ yyvsp[-2].pair->next = yyvsp[0].pair; yyval.pair = yyvsp[-2].pair; ;
    break;}
case 101:
#line 268 "parser.y"
{ yyval.pair = new CtkArrayElemExpr(yyvsp[-2].expr, yyvsp[0].expr); ;
    break;}
case 102:
#line 269 "parser.y"
{ yyval.pair = new CtkArrayElemExpr(NULL, yyvsp[0].expr); ;
    break;}
case 103:
#line 271 "parser.y"
{ yyval.expr = new CtkStringConst(yyvsp[0].sval); ;
    break;}
case 104:
#line 272 "parser.y"
{ yyval.expr = new CtkIntConst(yyvsp[0].ival); ;
    break;}
case 105:
#line 273 "parser.y"
{ yyval.expr = new CtkRealConst(yyvsp[0].rval); ;
    break;}
case 106:
#line 274 "parser.y"
{ yyval.expr = new CtkNullConst(); ;
    break;}
case 107:
#line 276 "parser.y"
{ yyval.expr = NULL; ;
    break;}
case 110:
#line 279 "parser.y"
{ yyvsp[-2].expr->next = yyvsp[0].expr; yyval.expr = yyvsp[-2].expr; ;
    break;}
}
   /* the action file gets copied in in place of this dollarsign */
#line 487 "bison.simple"

  yyvsp -= yylen;
  yyssp -= yylen;
#ifdef YYLSP_NEEDED
  yylsp -= yylen;
#endif

#if YYDEBUG != 0
  if (yydebug)
    {
      short *ssp1 = yyss - 1;
      fprintf (stderr, "state stack now");
      while (ssp1 != yyssp)
	fprintf (stderr, " %d", *++ssp1);
      fprintf (stderr, "\n");
    }
#endif

  *++yyvsp = yyval;

#ifdef YYLSP_NEEDED
  yylsp++;
  if (yylen == 0)
    {
      yylsp->first_line = yylloc.first_line;
      yylsp->first_column = yylloc.first_column;
      yylsp->last_line = (yylsp-1)->last_line;
      yylsp->last_column = (yylsp-1)->last_column;
      yylsp->text = 0;
    }
  else
    {
      yylsp->last_line = (yylsp+yylen-1)->last_line;
      yylsp->last_column = (yylsp+yylen-1)->last_column;
    }
#endif

  /* Now "shift" the result of the reduction.
     Determine what state that goes to,
     based on the state we popped back to
     and the rule number reduced by.  */

  yyn = yyr1[yyn];

  yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
  if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
    yystate = yytable[yystate];
  else
    yystate = yydefgoto[yyn - YYNTBASE];

  goto yynewstate;

yyerrlab:   /* here on detecting error */

  if (! yyerrstatus)
    /* If not already recovering from an error, report this error.  */
    {
      ++yynerrs;

#ifdef YYERROR_VERBOSE
      yyn = yypact[yystate];

      if (yyn > YYFLAG && yyn < YYLAST)
	{
	  int size = 0;
	  char *msg;
	  int x, count;

	  count = 0;
	  /* Start X at -yyn if nec to avoid negative indexes in yycheck.  */
	  for (x = (yyn < 0 ? -yyn : 0);
	       x < (sizeof(yytname) / sizeof(char *)); x++)
	    if (yycheck[x + yyn] == x)
	      size += strlen(yytname[x]) + 15, count++;
	  msg = (char *) malloc(size + 15);
	  if (msg != 0)
	    {
	      strcpy(msg, "parse error");

	      if (count < 5)
		{
		  count = 0;
		  for (x = (yyn < 0 ? -yyn : 0);
		       x < (sizeof(yytname) / sizeof(char *)); x++)
		    if (yycheck[x + yyn] == x)
		      {
			strcat(msg, count == 0 ? ", expecting `" : " or `");
			strcat(msg, yytname[x]);
			strcat(msg, "'");
			count++;
		      }
		}
	      yyerror(msg);
	      free(msg);
	    }
	  else
	    yyerror ("parse error; also virtual memory exceeded");
	}
      else
#endif /* YYERROR_VERBOSE */
	yyerror("parse error");
    }

  goto yyerrlab1;
yyerrlab1:   /* here on error raised explicitly by an action */

  if (yyerrstatus == 3)
    {
      /* if just tried and failed to reuse lookahead token after an error, discard it.  */

      /* return failure if at end of input */
      if (yychar == YYEOF)
	YYABORT;

#if YYDEBUG != 0
      if (yydebug)
	fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
#endif

      yychar = YYEMPTY;
    }

  /* Else will try to reuse lookahead token
     after shifting the error token.  */

  yyerrstatus = 3;		/* Each real token shifted decrements this */

  goto yyerrhandle;

yyerrdefault:  /* current state does not do anything special for the error token. */

#if 0
  /* This is wrong; only states that explicitly want error tokens
     should shift them.  */
  yyn = yydefact[yystate];  /* If its default is to accept any token, ok.  Otherwise pop it.*/
  if (yyn) goto yydefault;
#endif

yyerrpop:   /* pop the current state because it cannot handle the error token */

  if (yyssp == yyss) YYABORT;
  yyvsp--;
  yystate = *--yyssp;
#ifdef YYLSP_NEEDED
  yylsp--;
#endif

#if YYDEBUG != 0
  if (yydebug)
    {
      short *ssp1 = yyss - 1;
      fprintf (stderr, "Error: state stack now");
      while (ssp1 != yyssp)
	fprintf (stderr, " %d", *++ssp1);
      fprintf (stderr, "\n");
    }
#endif

yyerrhandle:

  yyn = yypact[yystate];
  if (yyn == YYFLAG)
    goto yyerrdefault;

  yyn += YYTERROR;
  if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
    goto yyerrdefault;

  yyn = yytable[yyn];
  if (yyn < 0)
    {
      if (yyn == YYFLAG)
	goto yyerrpop;
      yyn = -yyn;
      goto yyreduce;
    }
  else if (yyn == 0)
    goto yyerrpop;

  if (yyn == YYFINAL)
    YYACCEPT;

#if YYDEBUG != 0
  if (yydebug)
    fprintf(stderr, "Shifting error token, ");
#endif

  *++yyvsp = yylval;
#ifdef YYLSP_NEEDED
  *++yylsp = yylloc;
#endif

  yystate = yyn;
  goto yynewstate;
}
#line 282 "parser.y"