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1 /*
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2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.runtime.core;
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11
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12 import java.math.*;
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13
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14 import com.oracle.truffle.ruby.runtime.*;
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15 import com.oracle.truffle.ruby.runtime.core.array.*;
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16 import com.oracle.truffle.ruby.runtime.objects.*;
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17
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18 /**
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19 * Represents the Ruby {@code Bignum} class.
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20 */
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21 public class RubyBignum extends RubyObject implements Unboxable {
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22
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23 private final BigInteger value;
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24
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25 public RubyBignum(RubyClass bignumClass, BigInteger value) {
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26 super(bignumClass);
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27
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28 assert value != null;
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29
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30 this.value = value;
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31 }
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32
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33 public BigInteger getValue() {
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34 return value;
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35 }
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36
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37 public Object unbox() {
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38 return value;
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39 }
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40
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41 public static RubyArray divMod(RubyContext context, BigInteger a, BigInteger b) {
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42 final BigInteger[] quotientRemainder = a.divideAndRemainder(b);
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43
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44 final Object quotient = GeneralConversions.fixnumOrBignum(quotientRemainder[0]);
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45 final Object remainder = GeneralConversions.fixnumOrBignum(quotientRemainder[1]);
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46
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47 final ObjectImmutablePairArrayStore store = new ObjectImmutablePairArrayStore(quotient, remainder);
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48 return new RubyArray(context.getCoreLibrary().getArrayClass(), store);
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49 }
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50
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51 @Override
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52 public int hashCode() {
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53 return value.hashCode();
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54 }
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55
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56 @Override
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57 public boolean equals(Object obj) {
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58 if (this == obj) {
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59 return true;
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60 }
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61 if (obj == null) {
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62 return false;
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63 }
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64 if (!(obj instanceof RubyBignum)) {
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65 return false;
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66 }
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67 RubyBignum other = (RubyBignum) obj;
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68 if (value == null) {
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69 if (other.value != null) {
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70 return false;
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71 }
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72 } else if (!value.equals(other.value)) {
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73 return false;
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74 }
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75 return true;
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76 }
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77
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78 @Override
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79 public String toString() {
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80 return value.toString();
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81 }
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82
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83 }
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