在Xtext中组合语法(Combining grammars in Xtext)

在Xtext中组合语法(Combining grammars in Xtext)

我已经成功地使用'with'关键字在xtext中组合了两个语法，但是我在语言验证和生成中遇到了问题。

当有两个语法组合时，任何验证/代码生成都必须放在原始语法中或扩展它的那个语法中？ 假设我有语法A和B，并且B位于A之上。任何与语法A中的规则相关的验证必须在A中，或者它们必须在B中？ 谢谢 ：）

I have successfully managed to combine two grammars in xtext using the 'with' keyword, however I am having an issue in the language validation and generation.

When there are two grammars combined, any validation / code generation has to be placed in the original grammar or the one extending it? Say I have grammars A and B, and B sits on top of A. Any validation related to the rules in grammar A must be in A, or they have to be in B? Thanks :)

最满意答案

我遇到了同样的问题，我找到了一个查看此链接的解决方案。

诀窍是覆盖该方法

protected List<EPackage> getEPackages() { List<EPackage> result = super.getEPackages(); result.add(OdlDataPackage.eINSTANCE); return result; }

为了将超语法的包添加到父包的列表中。

I'm experiencing the same problem and I found a solution looking at this link.

The trick is to override the method

protected List<EPackage> getEPackages() { List<EPackage> result = super.getEPackages(); result.add(OdlDataPackage.eINSTANCE); return result; }

In order add the package of the super grammar to the list of the parent package.