/// <summary>
/// 方法调用
/// </summary>
/// <param name="stement"></param>
/// <returns></returns>
private ScriptValue ExcuteCall(TokenFunctionCallStement stement)
{
var first = stement.CallChain.First();
var paremeters = new List <ScriptValue>();
foreach (var value in stement.Parameters)
{
var scriptVar = ReturnValue(value);
paremeters.Add(scriptVar);
}
if (_functions.ContainsKey(first))
{
return(ExcuteFunction(_functions[first], paremeters));
}
{
var argTypes = new List <Type>();
var argValues = new List <object>();
foreach (var paremeter in paremeters)
{
var dataType = ScriptType.GetType(paremeter.DataType);
argTypes.Add(dataType);
argValues.Add(paremeter.Value);
}
//调用.Net框架中的方法
//从程序集中找出名称和参数定义相同的方法
var methods = AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(it => it.DefinedTypes.Where(it1 => it1.Name == first)
.Select(t => t.GetMethod(stement.CallChain.Last(), argTypes.ToArray()))
.Where(m => m != null)
).ToList();
if (!methods.Any())
{
throw new Exception("没有找到对应的方法");
}
// if(methods.Count()>1) throw new Exception("找到多个方法，无法确定调用哪个");
var method = methods.First();
var retValue = new ScriptValue();
var value = method.Invoke(null, argValues.ToArray());
if (method.ReturnType == typeof(void))
{
return(null);
}
return(new ScriptValue
{
Value = value
});
}
}