80 lines
2.9 KiB
C#
80 lines
2.9 KiB
C#
///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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///////////////////////////////////////////////////////////////////////////////
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using System;
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namespace Microsoft.Singularity.Policy.Engine {
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// An Address is an index into an Area.
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internal class Address {
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readonly uint _at;
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readonly Area _in;
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internal Address(Area @in, uint @at) { _in = @in; _at = @at; }
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internal uint At { get { return _at; } }
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internal uint Order { get { return _in._order; } }
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internal object this[int i] {
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get { return _in[(uint)(_at + i)]; }
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set { _in[(uint)(_at + i)] = value; }
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}
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internal object this[
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uint i
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] { get { return _in[_at + i]; } set { _in[_at + i] = value; } }
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internal object _object {
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get { return this[0]; }
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set { this[0] = value; }
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}
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internal Address _address {
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get { return (Address)this[0]; }
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set { this[0] = value; }
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}
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internal Cell _cell {
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get { return (Cell)this[0]; }
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set { this[0] = value; }
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}
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internal Instruction _instruction {
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get { return (Instruction)this[0]; }
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set { this[0] = value; }
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}
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public static Address operator +(Address a, int i) {
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return new Address(a._in, (uint)(a._at + i));
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}
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public static Address operator +(Address a, uint i) {
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return new Address(a._in, (uint)(a._at + i));
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}
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public static Address operator -(Address a, int i) {
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return new Address(a._in, (uint)(a._at - i));
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}
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public static Address operator -(Address a, uint i) {
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return new Address(a._in, (uint)(a._at - i));
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}
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public static bool operator ==(Address a0, Address a1) {
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if ((object)a0 == null) { return (object)a1 == null; }
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if ((object)a1 == null) { return false; }
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return a0._at == a1._at && a0._in == a1._in;
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}
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public static bool operator !=(Address a0, Address a1) {
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return !(a0 == a1);
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}
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public override bool Equals(object obj) {
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if (obj == null) { return false; }
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Address that = obj as Address;
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if (that == null) { return false; }
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return this == that;
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}
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public override int GetHashCode() {
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return _at.GetHashCode() ^ unchecked((int)_in._order);
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}
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public override string ToString() {
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return _in.ToString()
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+ "@"
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+ _at.ToString()
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+ " => "
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+ this._object.ToString();
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}
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}
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}
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