/// <summary>
/// 遍历所有的功能块，如果 loopFunc 返回 false，则停止遍历。
/// </summary>
/// <param name="loopFunc">功能块处理函数，如果返回 false，则停止遍历</param>
/// <param name="pouSourceFilter">对嵌套的 Pou Source 对象进行过滤，如果返回 false，则该 Pou Source 对象就不遍历了。</param>
/// <param name="child">子对象</param>
/// <param name="loopedTypes">用于记录已经被遍历过的功能块信息</param>
/// <returns>遍历是否没有被 loopFunc 函数终止？</returns>
protected virtual bool LoopPOUs(Func <ViFirmBlockType, bool> loopFunc, Func <ViPouSource, bool> pouSourceFilter, ViNamedObject child, Dictionary <string, ViFirmBlockType> loopedTypes)
{
if (child is ViFirmBlockType)
{
ViFirmBlockType blockType = child as ViFirmBlockType;
// 记录遍历过的功能块信息
string key = blockType.Name.ToUpper();
if (loopedTypes.ContainsKey(key))
{
return(true);
}
loopedTypes[key] = blockType;
// 遍历功能块
if (!loopFunc(blockType))
{
return(false);
}
}
else if (child is ViPouSource)
{
ViPouSource pouSource = child as ViPouSource;
if (pouSourceFilter == null || pouSourceFilter(pouSource))
{
if (!pouSource.LoopPOUs(loopFunc, pouSourceFilter, loopedTypes))
{
return(false);
}
}
}
return(true);
}
