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using System;
namespace Microsoft.Build.Framework
{
[Serializable]
public class BuildEventContext
{
static readonly Random rnd = new Random ();
public static BuildEventContext Invalid = new BuildEventContext (
InvalidSubmissionId,
InvalidNodeId,
InvalidProjectInstanceId,
InvalidTargetId,
InvalidProjectContextId,
InvalidTaskId);
internal static BuildEventContext NewInstance ()
{
return new BuildEventContext (rnd.Next (), rnd.Next (), rnd.Next (), rnd.Next ());
}
public BuildEventContext (int nodeId, int targetId, int projectContextId, int taskId)
: this (nodeId, rnd.Next (), targetId, projectContextId, taskId)
{
}
public BuildEventContext (int nodeId, int projectInstanceId, int targetId, int projectContextId, int taskId)
: this (rnd.Next (), nodeId, projectInstanceId, targetId, projectContextId, taskId)
{
}
public BuildEventContext (int submissionId, int nodeId, int projectInstanceId, int targetId, int projectContextId, int taskId)
{
SubmissionId = submissionId;
NodeId = nodeId;
ProjectInstanceId = projectInstanceId;
TargetId = targetId;
ProjectContextId = projectContextId;
TaskId = taskId;
}
public const int InvalidSubmissionId = -1;
public const int InvalidNodeId = -2;
public const int InvalidProjectInstanceId = -1;
public const int InvalidTargetId = -1;
public const int InvalidProjectContextId = -2;
public const int InvalidTaskId = -1;
public int SubmissionId { get; private set; }
public int NodeId { get; private set; }
public int ProjectInstanceId { get; private set; }
public int TargetId { get; private set; }
public int ProjectContextId { get; private set; }
public int TaskId { get; private set; }
// MSDN document says "true if the references are equal, false otherwise." but that doesn't make sense.
public override bool Equals (object other)
{
var o = other as BuildEventContext;
return (object) o != null &&
o.NodeId == NodeId &&
o.ProjectContextId == ProjectContextId &&
o.ProjectInstanceId == ProjectInstanceId &&
o.SubmissionId == SubmissionId &&
o.TargetId == TargetId &&
o.TaskId == TaskId;
}
public override int GetHashCode ()
{
return
(NodeId << 5) +
(ProjectContextId << 4) +
(ProjectInstanceId << 3) +
(SubmissionId << 2) +
(TargetId << 1) +
TaskId;
}
public static bool operator == (BuildEventContext left, BuildEventContext right)
{
return (object) left == null ? (object)right == null : left.Equals (right);
}
public static bool operator != (BuildEventContext left, BuildEventContext right)
{
return (object) left == null ? (object)right != null : !left.Equals (right);
}
}
}
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