// <file>
// <copyright see="prj:///doc/copyright.txt"/>
// <license see="prj:///doc/license.txt"/>
// <owner name="Daniel Grunwald" email="daniel@danielgrunwald.de"/>
// <version>$Revision: 2087 $</version>
// </file>
using System;
namespace ICSharpCode.NRefactory
{
/// <summary>
/// A line/column position.
/// </summary>
public struct Location : IComparable<Location>, IEquatable<Location>
{
public static readonly Location Empty = new Location(-1, -1);
public Location(int column, int line)
{
x = column;
y = line;
}
int x, y;
public int X {
get { return x; }
set { x = value; }
}
public int Y {
get { return y; }
set { y = value; }
}
public int Line {
get { return y; }
set { y = value; }
}
public int Column {
get { return x; }
set { x = value; }
}
public bool IsEmpty {
get {
return x <= 0 && y <= 0;
}
}
public override string ToString()
{
return string.Format("(Line {1}, Col {0})", this.x, this.y);
}
public override int GetHashCode()
{
return unchecked (87 * x.GetHashCode() ^ y.GetHashCode());
}
public override bool Equals(object obj)
{
if (!(obj is Location)) return false;
return (Location)obj == this;
}
public bool Equals(Location other)
{
return this == other;
}
public static bool operator ==(Location a, Location b)
{
return a.x == b.x && a.y == b.y;
}
public static bool operator !=(Location a, Location b)
{
return a.x != b.x || a.y != b.y;
}
public static bool operator <(Location a, Location b)
{
if (a.y < b.y)
return true;
else if (a.y == b.y)
return a.x < b.x;
else
return false;
}
public static bool operator >(Location a, Location b)
{
if (a.y > b.y)
return true;
else if (a.y == b.y)
return a.x > b.x;
else
return false;
}
public static bool operator <=(Location a, Location b)
{
return !(a > b);
}
public static bool operator >=(Location a, Location b)
{
return !(a < b);
}
public int CompareTo(Location other)
{
if (this == other)
return 0;
if (this < other)
return -1;
else
return 1;
}
}
}