/// <summary>
/// 获取该类型的指定方法的委托
/// </summary>
/// <param name="methodInfo">函数信息</param>
/// <param name="parametersType">参数列表</param>
/// <returns></returns>
public static FastInvokeHandler GetCustomerMethodInfo(MethodInfo methodInfo)
{
FastInvokeHandler fastInvokerHandle = null;
string key = GetMethodInfoKey(methodInfo);
if (dicMethod.TryGetValue(key, out fastInvokerHandle))
{
return(fastInvokerHandle);
}
fastInvokerHandle = FastInvoke.GetMethodInvoker(methodInfo);
dicMethod[key] = fastInvokerHandle;
return(fastInvokerHandle);
}
/// <summary>
/// 生成调用方法
/// </summary>
/// <param name="methodInfo"></param>
/// <returns></returns>
public static FastPropertyHandler GetMethodInvoker(MethodInfo methodInfo)
{
DynamicMethod dynamicMethod = new DynamicMethod(string.Empty, typeof(object), new Type[] { typeof(object), typeof(object) }, methodInfo.DeclaringType.Module);
ILGenerator il = dynamicMethod.GetILGenerator();
ParameterInfo[] ps = methodInfo.GetParameters();
//LocalBuilder ret=il.DeclareLocal(typeof(object));
if (!methodInfo.IsStatic)
{
il.Emit(OpCodes.Ldarg_0);
}
for (int i = 0; i < ps.Length; i++)
{
il.Emit(OpCodes.Ldarg_S, (i + 1));//加载第几个参数
FastInvoke.EmitCastToReference(il, ps[i].ParameterType);
}
if (methodInfo.IsStatic)
{
il.Emit(OpCodes.Call, methodInfo);
}
else
{
il.Emit(OpCodes.Callvirt, methodInfo);
}
Type retType = methodInfo.ReturnType;
if (retType == FastInvoke.VoidType)
{
il.Emit(OpCodes.Ldnull);
}
else
{
FastInvoke.EmitBoxIfNeeded(il, retType);
}
il.Emit(OpCodes.Ret);
FastPropertyHandler invoder = (FastPropertyHandler)dynamicMethod.CreateDelegate(typeof(FastPropertyHandler));
return(invoder);
}
