parse.c

在linux下实行的简单的c语言编译器

{
			yyval.ptree = newDecNode(CompK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[-1].ptree;	
		}
break;
case 31:
#line 235 "Parse.y"
{
			TreeNode *t = yyvsp[-1].ptree;
			if (t!=NULL)
			{
				while (t->sibling!=NULL)
					t=t->sibling;
				t->sibling = yyvsp[0].ptree;
				yyval.ptree = yyvsp[-1].ptree;
			}
			else
				yyval.ptree = yyvsp[0].ptree;
		}
break;
case 32:
#line 247 "Parse.y"
{yyval.ptree = NULL;}
break;
case 33:
#line 251 "Parse.y"
{
			TreeNode *t = yyvsp[-1].ptree;
			if (t!=NULL)
			{
				while (t->sibling!=NULL)
					t = t->sibling;
				t->sibling = yyvsp[0].ptree;
				yyval.ptree = yyvsp[-1].ptree;
			}
			else
				yyval.ptree = yyvsp[0].ptree;
		}
break;
case 34:
#line 263 "Parse.y"
{yyval.ptree = NULL;}
break;
case 35:
#line 266 "Parse.y"
{yyval.ptree = yyvsp[0].ptree;}
break;
case 36:
#line 267 "Parse.y"
{yyval.ptree = yyvsp[0].ptree;}
break;
case 37:
#line 268 "Parse.y"
{yyval.ptree = yyvsp[0].ptree;}
break;
case 38:
#line 269 "Parse.y"
{yyval.ptree = yyvsp[0].ptree;}
break;
case 39:
#line 270 "Parse.y"
{yyval.ptree = yyvsp[0].ptree;}
break;
case 40:
#line 271 "Parse.y"
{yyval.ptree = newStmtNode(ContinueK);}
break;
case 41:
#line 272 "Parse.y"
{yyval.ptree = newStmtNode(BreakK);}
break;
case 42:
#line 275 "Parse.y"
{yyval.ptree = yyvsp[-1].ptree;}
break;
case 43:
#line 276 "Parse.y"
{yyval.ptree = NULL;}
break;
case 44:
#line 280 "Parse.y"
{
			yyval.ptree = newStmtNode(IfK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
		}
break;
case 45:
#line 286 "Parse.y"
{
			yyval.ptree = newStmtNode(IfK);
			yyval.ptree->child[0] = yyvsp[-4].ptree;
			yyval.ptree->child[1] = yyvsp[-2].ptree;
			yyval.ptree->child[2] = yyvsp[0].ptree;
		}
break;
case 46:
#line 295 "Parse.y"
{
			yyval.ptree = newStmtNode(WhileK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
		}
break;
case 47:
#line 303 "Parse.y"
{
			yyval.ptree = newStmtNode(ReturnK);
			yyval.ptree->child[0] = NULL;
		}
break;
case 48:
#line 308 "Parse.y"
{
			yyval.ptree = newStmtNode(ReturnK);
			yyval.ptree->child[0] = yyvsp[-1].ptree;
		}
break;
case 49:
#line 315 "Parse.y"
{
			yyval.ptree = newStmtNode(AssignK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
		}
break;
case 50:
#line 321 "Parse.y"
{
			yyval.ptree = yyvsp[0].ptree;
		}
break;
case 51:
#line 327 "Parse.y"
{
			yyval.ptree = newExpNode(IdK);
			yyval.ptree->attr.name= savedIdName;
		}
break;
case 52:
#line 332 "Parse.y"
{
			yyval.ptree = newExpNode(IdK);
			yyval.ptree->attr.name = savedIdName;
			yyval.ptree->child[0] = yyvsp[-1].ptree;
		}
break;
case 53:
#line 340 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = OR;
		}
break;
case 54:
#line 347 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = AND;
		}
break;
case 55:
#line 354 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = LT;
			yyval.ptree->type = Bool;
		}
break;
case 56:
#line 362 "Parse.y"
{		
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = LE;
			yyval.ptree->type = Bool;
		}
break;
case 57:
#line 370 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = GT;
			yyval.ptree->type = Bool;
		}
break;
case 58:
#line 378 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = GE;
			yyval.ptree->type = Bool;
		}
break;
case 59:
#line 386 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = EQ;
			yyval.ptree->type = Bool;
		}
break;
case 60:
#line 394 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = NEQ;
			yyval.ptree->type = Bool;
		}
break;
case 61:
#line 402 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = PLUS;
		}
break;
case 62:
#line 409 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = SUB;
		}
break;
case 63:
#line 416 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = MUT;
		}
break;
case 64:
#line 423 "Parse.y"
{
			yyval.ptree = newExpNode(OpK);
			yyval.ptree->child[0] = yyvsp[-2].ptree;
			yyval.ptree->child[1] = yyvsp[0].ptree;
			yyval.ptree->attr.op = DIV;
		}
break;
case 65:
#line 430 "Parse.y"
{ yyval.ptree = yyvsp[0].ptree; }
break;
case 66:
#line 434 "Parse.y"
{
			yyval.ptree = yyvsp[-1].ptree;
		}
break;
case 67:
#line 438 "Parse.y"
{
			yyval.ptree = yyvsp[0].ptree;
		}
break;
case 68:
#line 442 "Parse.y"
{
			yyval.ptree = yyvsp[0].ptree;
		}
break;
case 69:
#line 446 "Parse.y"
{
			yyval.ptree = newExpNode(NumK);
			yyval.ptree->type = Int;
			yyval.ptree->attr.val.i = atoi(tokenString);
		}
break;
case 70:
#line 452 "Parse.y"
{
			yyval.ptree = newExpNode(FNumK);
			yyval.ptree->type = Float;
			yyval.ptree->attr.val.f = (float)atof(tokenString);
		}
break;
case 71:
#line 458 "Parse.y"
{
			yyval.ptree = newExpNode(CharK);
			yyval.ptree->type = Char;
			yyval.ptree->attr.val.i = *(tokenString + 1);
		}
break;
case 72:
#line 464 "Parse.y"
{
			yyval.ptree = yyvsp[0].ptree;
			yyval.ptree->attr.op = NOT;
		}
break;
case 73:
#line 471 "Parse.y"
{
			yyval.ptree = newStmtNode(CallK);
			yyval.ptree->attr.name = yyvsp[-3].ptree->attr.name;
			yyval.ptree->child[0] = yyvsp[-1].ptree;

		}
break;
case 74:
#line 480 "Parse.y"
{
			TreeNode *t = yyvsp[-2].ptree;
			if (t != NULL)
			{
				while(t->sibling!=NULL)
					t = t->sibling;
				t->sibling = yyvsp[0].ptree;
				yyval.ptree = yyvsp[-2].ptree;				
			}
			else
				yyval.ptree = yyvsp[0].ptree;
		}
break;
case 75:
#line 493 "Parse.y"
{
			yyval.ptree = yyvsp[0].ptree;
		}
break;
case 76:
#line 499 "Parse.y"
{
			yyval.ptree = yyvsp[0].ptree;
		}
break;
case 77:
#line 503 "Parse.y"
{
			yyval.ptree = NULL;
		}
break;
#line 1189 "Parse.c"
    }
    yyssp -= yym;
    yystate = *yyssp;
    yyvsp -= yym;
    yym = yylhs[yyn];
    if (yystate == 0 && yym == 0)
    {
#if YYDEBUG
        if (yydebug)
            printf("%sdebug: after reduction, shifting from state 0 to\
 state %d\n", YYPREFIX, YYFINAL);
#endif
        yystate = YYFINAL;
        *++yyssp = YYFINAL;
        *++yyvsp = yyval;
        if (yychar < 0)
        {
            if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
            if (yydebug)
            {
                yys = 0;
                if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
                if (!yys) yys = "illegal-symbol";
                printf("%sdebug: state %d, reading %d (%s)\n",
                        YYPREFIX, YYFINAL, yychar, yys);
            }
#endif
        }
        if (yychar == 0) goto yyaccept;
        goto yyloop;
    }
    if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
            yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
        yystate = yytable[yyn];
    else
        yystate = yydgoto[yym];
#if YYDEBUG
    if (yydebug)
        printf("%sdebug: after reduction, shifting from state %d \
to state %d\n", YYPREFIX, *yyssp, yystate);
#endif
    if (yyssp >= yysslim && yygrowstack())
    {
        goto yyoverflow;
    }
    *++yyssp = yystate;
    *++yyvsp = yyval;
    goto yyloop;
yyoverflow:
    yyerror("yacc stack overflow");
yyabort:
    return (1);
yyaccept:
    return (0);
}