[英]How to find out in Xtend if an optional feature from an Xtext grammar is used or not?
I have the following xtext fragments:我有以下 xtext 片段:
LongDmxColor:
intensity=DmxValue red=DmxValue green=DmxValue blue=DmxValue (white=DmxValue)?;
and和
DmxValue returns INT:
value=INT;
In the generated LongDmxColor.java class, there are the following methods related to white:在生成的 LongDmxColor.java 类中,有以下与白色相关的方法:
INT getWhite();
void setWhite(INT value);
How can I in xtend find out whether white is selected or not?我如何在 xtend 中找出是否选择了白色?
I found a solution (to help others):我找到了一个解决方案(帮助他人):
Use the eIsSet
command, like:使用
eIsSet
命令,例如:
if (colorItem.eIsSet(DmxLightShowPackage.Literals.LONG_DMX_COLOR__WHITE))
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