/// <summary>
/// 绑定一个方法
/// </summary>
/// <param name="method">通过这个名字可以调用方法</param>
/// <param name="target">方法调用目标</param>
/// <param name="methodInfo">在方法调用目标中被调用的方法</param>
/// <returns></returns>
public IMethodBind Bind(string method, object target, MethodInfo methodInfo)
{
Guard.NotEmptyOrNull(method, nameof(method));
Guard.Requires <ArgumentNullException>(methodInfo != null);
if (!methodInfo.IsStatic)
{
Guard.Requires <ArgumentNullException>(target != null);
}
lock (syncRoot)
{
if (methodMappings.ContainsKey(method))
{
throw new LogicException($"Method [{method}] is already {nameof(Bind)}");
}
var methodBind = new MethodBind(this, container, method, target, methodInfo);
methodMappings[method] = methodBind;
if (target == null)
{
return(methodBind);
}
if (!targetToMethodsMappings.TryGetValue(target, out List <string> targetMappings))
{
targetToMethodsMappings[target] = targetMappings = new List <string>();
}
targetMappings.Add(method);
return(methodBind);
}
}
/// <summary>
/// 解除绑定
/// </summary>
/// <param name="methodBind">方法绑定</param>
internal void Unbind(MethodBind methodBind)
{
lock (syncRoot)
{
methodMappings.Remove(methodBind.Service);
if (methodBind.Target == null)
{
return;
}
List <string> methods;
if (!targetToMethodsMappings.TryGetValue(methodBind.Target, out methods))
{
return;
}
methods.Remove(methodBind.Service);
if (methods.Count <= 0)
{
targetToMethodsMappings.Remove(methodBind.Target);
}
}
}