--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/core/BignumNodes.java	Mon Jan 06 17:12:09 2014 +0000
@@ -0,0 +1,642 @@
+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
+package com.oracle.truffle.ruby.nodes.core;
+
+import java.math.*;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.api.dsl.*;
+import com.oracle.truffle.api.frame.*;
+import com.oracle.truffle.ruby.runtime.*;
+import com.oracle.truffle.ruby.runtime.core.*;
+import com.oracle.truffle.ruby.runtime.core.array.*;
+
+@CoreClass(name = "Bignum")
+public abstract class BignumNodes {
+
+    @CoreMethod(names = "+@", maxArgs = 0)
+    public abstract static class PosNode extends CoreMethodNode {
+
+        public PosNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public PosNode(PosNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public BigInteger pos(BigInteger value) {
+            return value;
+        }
+
+    }
+
+    @CoreMethod(names = "-@", maxArgs = 0)
+    public abstract static class NegNode extends CoreMethodNode {
+
+        public NegNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public NegNode(NegNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public BigInteger neg(BigInteger value) {
+            return value.negate();
+        }
+
+    }
+
+    @CoreMethod(names = "+", minArgs = 1, maxArgs = 1)
+    public abstract static class AddNode extends CoreMethodNode {
+
+        public AddNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public AddNode(AddNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object add(BigInteger a, int b) {
+            return a.add(BigInteger.valueOf(b));
+        }
+
+        @Specialization
+        public double add(BigInteger a, double b) {
+            return a.doubleValue() + b;
+        }
+
+        @Specialization
+        public Object add(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.add(b));
+        }
+
+    }
+
+    @CoreMethod(names = "-", minArgs = 1, maxArgs = 1)
+    public abstract static class SubNode extends CoreMethodNode {
+
+        public SubNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public SubNode(SubNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object sub(BigInteger a, int b) {
+            return a.subtract(BigInteger.valueOf(b));
+        }
+
+        @Specialization
+        public double sub(BigInteger a, double b) {
+            return a.doubleValue() - b;
+        }
+
+        @Specialization
+        public Object sub(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.subtract(b));
+        }
+
+    }
+
+    @CoreMethod(names = "*", minArgs = 1, maxArgs = 1)
+    public abstract static class MulNode extends CoreMethodNode {
+
+        public MulNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public MulNode(MulNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object mul(BigInteger a, int b) {
+            return a.multiply(BigInteger.valueOf(b));
+        }
+
+        @Specialization
+        public double mul(BigInteger a, double b) {
+            return a.doubleValue() * b;
+        }
+
+        @Specialization
+        public Object mul(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.multiply(b));
+        }
+
+    }
+
+    @CoreMethod(names = "**", minArgs = 1, maxArgs = 1)
+    public abstract static class PowNode extends CoreMethodNode {
+
+        public PowNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public PowNode(PowNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public BigInteger pow(BigInteger a, int b) {
+            return a.pow(b);
+        }
+
+        @Specialization
+        public double pow(BigInteger a, double b) {
+            return Math.pow(a.doubleValue(), b);
+        }
+
+        @Specialization
+        public BigInteger pow(BigInteger a, BigInteger b) {
+            BigInteger result = BigInteger.ONE;
+
+            for (BigInteger n = BigInteger.ZERO; b.compareTo(b) < 0; n = n.add(BigInteger.ONE)) {
+                result = result.multiply(a);
+            }
+
+            return result;
+        }
+
+    }
+
+    @CoreMethod(names = "/", minArgs = 1, maxArgs = 1)
+    public abstract static class DivNode extends CoreMethodNode {
+
+        public DivNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public DivNode(DivNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object div(BigInteger a, int b) {
+            return a.divide(BigInteger.valueOf(b));
+        }
+
+        @Specialization
+        public double div(BigInteger a, double b) {
+            return a.doubleValue() / b;
+        }
+
+        @Specialization
+        public Object div(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.divide(b));
+        }
+
+    }
+
+    @CoreMethod(names = "%", minArgs = 1, maxArgs = 1)
+    public abstract static class ModNode extends CoreMethodNode {
+
+        public ModNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public ModNode(ModNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object mod(BigInteger a, int b) {
+            return GeneralConversions.fixnumOrBignum(a.mod(BigInteger.valueOf(b)));
+        }
+
+        @Specialization
+        public Object mod(@SuppressWarnings("unused") BigInteger a, @SuppressWarnings("unused") double b) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Specialization
+        public Object mod(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.mod(b));
+        }
+
+    }
+
+    @CoreMethod(names = "divmod", minArgs = 1, maxArgs = 1)
+    public abstract static class DivModNode extends CoreMethodNode {
+
+        public DivModNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public DivModNode(DivModNode prev) {
+            super(prev);
+        }
+
+        @SuppressWarnings("unused")
+        @Specialization
+        public RubyArray divMod(VirtualFrame frame, BigInteger a, int b) {
+            return RubyBignum.divMod(getContext(), a, BigInteger.valueOf(b));
+        }
+
+        @Specialization
+        public RubyArray divMod(@SuppressWarnings("unused") BigInteger a, @SuppressWarnings("unused") double b) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Specialization
+        public RubyArray divMod(BigInteger a, BigInteger b) {
+            return RubyBignum.divMod(getContext(), a, b);
+        }
+
+    }
+
+    @CoreMethod(names = "<", minArgs = 1, maxArgs = 1)
+    public abstract static class LessNode extends CoreMethodNode {
+
+        public LessNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public LessNode(LessNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean less(BigInteger a, int b) {
+            return a.compareTo(BigInteger.valueOf(b)) < 0;
+        }
+
+        @Specialization
+        public boolean less(BigInteger a, double b) {
+            return a.compareTo(BigInteger.valueOf((long) b)) < 0;
+        }
+
+        @Specialization
+        public boolean less(BigInteger a, BigInteger b) {
+            return a.compareTo(b) < 0;
+        }
+    }
+
+    @CoreMethod(names = "<=", minArgs = 1, maxArgs = 1)
+    public abstract static class LessEqualNode extends CoreMethodNode {
+
+        public LessEqualNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public LessEqualNode(LessEqualNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean lessEqual(BigInteger a, int b) {
+            return a.compareTo(BigInteger.valueOf(b)) <= 0;
+        }
+
+        @Specialization
+        public boolean lessEqual(BigInteger a, double b) {
+            return a.compareTo(BigInteger.valueOf((long) b)) <= 0;
+        }
+
+        @Specialization
+        public boolean lessEqual(BigInteger a, BigInteger b) {
+            return a.compareTo(b) <= 0;
+        }
+    }
+
+    @CoreMethod(names = "==", minArgs = 1, maxArgs = 1)
+    public abstract static class EqualNode extends CoreMethodNode {
+
+        public EqualNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public EqualNode(EqualNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean equal(BigInteger a, int b) {
+            return a.compareTo(BigInteger.valueOf(b)) == 0;
+        }
+
+        @Specialization
+        public boolean equal(BigInteger a, double b) {
+            return a.compareTo(BigInteger.valueOf((long) b)) == 0;
+        }
+
+        @Specialization
+        public boolean equal(BigInteger a, BigInteger b) {
+            return a.compareTo(b) == 0;
+        }
+    }
+
+    @CoreMethod(names = "<=>", minArgs = 1, maxArgs = 1)
+    public abstract static class CompareNode extends CoreMethodNode {
+
+        public CompareNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public CompareNode(CompareNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public int compare(BigInteger a, int b) {
+            return a.compareTo(BigInteger.valueOf(b));
+        }
+
+        @Specialization
+        public int compare(BigInteger a, double b) {
+            return a.compareTo(BigInteger.valueOf((long) b));
+        }
+
+        @Specialization
+        public int compare(BigInteger a, BigInteger b) {
+            return a.compareTo(b);
+        }
+    }
+
+    @CoreMethod(names = "!=", minArgs = 1, maxArgs = 1)
+    public abstract static class NotEqualNode extends CoreMethodNode {
+
+        public NotEqualNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public NotEqualNode(NotEqualNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean notEqual(BigInteger a, int b) {
+            return a.compareTo(BigInteger.valueOf(b)) != 0;
+        }
+
+        @Specialization
+        public boolean notEqual(BigInteger a, double b) {
+            return a.compareTo(BigInteger.valueOf((long) b)) != 0;
+        }
+
+        @Specialization
+        public boolean notEqual(BigInteger a, BigInteger b) {
+            return a.compareTo(b) != 0;
+        }
+    }
+
+    @CoreMethod(names = ">=", minArgs = 1, maxArgs = 1)
+    public abstract static class GreaterEqualNode extends CoreMethodNode {
+
+        public GreaterEqualNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public GreaterEqualNode(GreaterEqualNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean greaterEqual(BigInteger a, int b) {
+            return a.compareTo(BigInteger.valueOf(b)) >= 0;
+        }
+
+        @Specialization
+        public boolean greaterEqual(BigInteger a, double b) {
+            return a.compareTo(BigInteger.valueOf((long) b)) >= 0;
+        }
+
+        @Specialization
+        public boolean greaterEqual(BigInteger a, BigInteger b) {
+            return a.compareTo(b) >= 0;
+        }
+    }
+
+    @CoreMethod(names = ">", minArgs = 1, maxArgs = 1)
+    public abstract static class GreaterNode extends CoreMethodNode {
+
+        public GreaterNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public GreaterNode(GreaterNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public boolean equal(BigInteger a, int b) {
+            return a.compareTo(BigInteger.valueOf(b)) > 0;
+        }
+
+        @Specialization
+        public boolean equal(BigInteger a, double b) {
+            return a.compareTo(BigInteger.valueOf((long) b)) > 0;
+        }
+
+        @Specialization
+        public boolean equal(BigInteger a, BigInteger b) {
+            return a.compareTo(b) > 0;
+        }
+    }
+
+    @CoreMethod(names = "&", minArgs = 1, maxArgs = 1)
+    public abstract static class BitAndNode extends CoreMethodNode {
+
+        public BitAndNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public BitAndNode(BitAndNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object bitAnd(BigInteger a, int b) {
+            return GeneralConversions.fixnumOrBignum(a.and(BigInteger.valueOf(b)));
+        }
+
+        @Specialization
+        public Object bitAnd(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.and(b));
+        }
+    }
+
+    @CoreMethod(names = "|", minArgs = 1, maxArgs = 1)
+    public abstract static class BitOrNode extends CoreMethodNode {
+
+        public BitOrNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public BitOrNode(BitOrNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object bitOr(BigInteger a, int b) {
+            return GeneralConversions.fixnumOrBignum(a.or(BigInteger.valueOf(b)));
+        }
+
+        @Specialization
+        public Object bitOr(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.or(b));
+        }
+    }
+
+    @CoreMethod(names = "^", minArgs = 1, maxArgs = 1)
+    public abstract static class BitXOrNode extends CoreMethodNode {
+
+        public BitXOrNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public BitXOrNode(BitXOrNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object bitXOr(BigInteger a, int b) {
+            return GeneralConversions.fixnumOrBignum(a.xor(BigInteger.valueOf(b)));
+        }
+
+        @Specialization
+        public Object bitXOr(BigInteger a, BigInteger b) {
+            return GeneralConversions.fixnumOrBignum(a.xor(b));
+        }
+    }
+
+    @CoreMethod(names = "<<", minArgs = 1, maxArgs = 1)
+    public abstract static class LeftShiftNode extends CoreMethodNode {
+
+        public LeftShiftNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public LeftShiftNode(LeftShiftNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object leftShift(BigInteger a, int b) {
+            if (b >= 0) {
+                return GeneralConversions.fixnumOrBignum(a.shiftLeft(b));
+            } else {
+                return GeneralConversions.fixnumOrBignum(a.shiftRight(-b));
+            }
+        }
+
+    }
+
+    @CoreMethod(names = ">>", minArgs = 1, maxArgs = 1)
+    public abstract static class RightShiftNode extends CoreMethodNode {
+
+        public RightShiftNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public RightShiftNode(RightShiftNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object leftShift(BigInteger a, int b) {
+            if (b >= 0) {
+                return GeneralConversions.fixnumOrBignum(a.shiftRight(b));
+            } else {
+                return GeneralConversions.fixnumOrBignum(a.shiftLeft(-b));
+            }
+        }
+
+    }
+
+    @CoreMethod(names = "inspect", maxArgs = 0)
+    public abstract static class InpsectNode extends CoreMethodNode {
+
+        public InpsectNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public InpsectNode(InpsectNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public RubyString inspect(BigInteger n) {
+            return getContext().makeString(n.toString());
+        }
+
+    }
+
+    @CoreMethod(names = "nonzero?", maxArgs = 0)
+    public abstract static class NonZeroNode extends CoreMethodNode {
+
+        public NonZeroNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public NonZeroNode(NonZeroNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public Object nonZero(BigInteger value) {
+            if (value.compareTo(BigInteger.ZERO) == 0) {
+                return false;
+            } else {
+                return value;
+            }
+        }
+
+    }
+
+    @CoreMethod(names = "times", needsBlock = true, maxArgs = 0)
+    public abstract static class TimesNode extends YieldingCoreMethodNode {
+
+        public TimesNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public TimesNode(TimesNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public BigInteger times(VirtualFrame frame, BigInteger n, RubyProc block) {
+            for (BigInteger i = BigInteger.ZERO; i.compareTo(n) < 0; i = i.add(BigInteger.ONE)) {
+                yield(frame, block, i);
+            }
+
+            return n;
+        }
+
+    }
+
+    @CoreMethod(names = "to_s", maxArgs = 0)
+    public abstract static class ToSNode extends CoreMethodNode {
+
+        public ToSNode(RubyContext context, SourceSection sourceSection) {
+            super(context, sourceSection);
+        }
+
+        public ToSNode(ToSNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        public RubyString toS(BigInteger value) {
+            return getContext().makeString(value.toString());
+        }
+
+    }
+
+}