/// <summary>
/// Attempts to update the context of the bound action stored in the field. Returns <c>false</c> if the field is <c>null</c>.
/// </summary>
/// <param name="contextUpdater">The function used to update an existing context. This may be called more than once if more than one thread attempts to simultanously update the context.</param>
public bool TryUpdateContext(Func <T, T> contextUpdater)
{
while (true)
{
var original = Interlocked.CompareExchange(ref _field, _field, _field);
if (original is null)
{
return(false);
}
var updatedContext = new BoundAction(original, contextUpdater);
var result = Interlocked.CompareExchange(ref _field, updatedContext, original);
if (ReferenceEquals(original, result))
{
return(true);
}
}
}
/// <summary>
/// Attempts to update the context of the bound action stored in the field. Returns <c>false</c> if the field is <c>null</c>.
/// </summary>
/// <param name="contextUpdater">The function used to update an existing context. This may be called more than once if more than one thread attempts to simultaneously update the context.</param>
public bool TryUpdateContext(Func <T, T> contextUpdater)
{
_ = contextUpdater ?? throw new ArgumentNullException(nameof(contextUpdater));
while (true)
{
var original = Interlocked.CompareExchange(ref _field, _field, _field);
if (original == null)
{
return(false);
}
var updatedContext = new BoundAction(original, contextUpdater);
var result = Interlocked.CompareExchange(ref _field, updatedContext, original);
if (ReferenceEquals(original, result))
{
return(true);
}
}
}
public void BoundAction_Matches_WhenRouteAndParametersMatch_And_CaseIsDifferent()
{
var actionParameters = new RouteValueDictionary
{
{ "param1", "test" },
{ "param2", "test2" }
};
var otherActionParameters = new RouteValueDictionary
{
{ "param1", "TEST" },
{ "PARAM2", "test2" }
};
var boundAction = new BoundAction("TESTCONTROLLER", "action", actionParameters);
var otherBoundAction = new BoundAction("testController", "ACTION", otherActionParameters);
Assert.That(boundAction.Matches(otherBoundAction), Is.True);
}
public void BoundAction_Matches_WhenRouteAndParametersMatch()
{
var actionParameters = new RouteValueDictionary
{
{ "param1", "test" },
{ "param2", "test2" }
};
var otherActionParameters = new RouteValueDictionary
{
{ "param1", "test" },
{ "param2", "test2" }
};
var boundAction = new BoundAction("testController", "action", actionParameters);
var otherBoundAction = new BoundAction("testController", "action", otherActionParameters);
Assert.That(boundAction.Matches(otherBoundAction), Is.True);
}
public BoundAction(BoundAction originalBoundAction, Func <T, T> contextUpdater)
{
_action = originalBoundAction._action;
_context = contextUpdater(originalBoundAction._context);
}
public BoundAction(BoundAction originalBoundAction, Func <T, T> contextUpdater)
{
Action = originalBoundAction.Action;
Context = contextUpdater(originalBoundAction.Context);
}
/// <summary>
/// Initializes the field with the specified action and context.
/// </summary>
/// <param name="action">The action delegate.</param>
/// <param name="context">The context.</param>
public BoundActionField(Action <T> action, T context)
{
_field = new BoundAction(action, context);
}
/// <summary>
/// Initializes the field with the specified action and context.
/// </summary>
/// <param name="action">The action delegate.</param>
/// <param name="context">The context.</param>
public BoundAsyncActionField(Func <T, ValueTask> action, T context)
{
field = new BoundAction(action, context);
}
