问题描述
我已经很长时间没有使用 EMF 了,我一直坚持这个。 我想创建一个等价于的泛型类型:
class Result<T:ASTNode>{
T root;
}
我在 Kotlin 中定义:
val result = ePackage.createEClass("Result").apply {
// I think this part is correct
val typeParameter = EcoreFactory.eINSTANCE.createETypeParameter().apply {
this.name = "T"
this.eBounds.add(EcoreFactory.eINSTANCE.createEGenericType().apply {
// astNode is my EClass
this.eClassifier = astNode
})
}
this.eTypeParameters.add(typeParameter)
val rootContainment = EcoreFactory.eINSTANCE.createEReference()
rootContainment.name = "root"
// STUCK!
// here should I set rootContainment.eType? rootContainment.eGenericType?
// how?
rootContainment.isContainment = true
rootContainment.lowerBound = 0
rootContainment.upperBound = 1
this.eStructuralFeatures.add(rootContainment)
addContainment("issues",issue,-1)
}
解决方法
等效的 .ecore 是:
<eClassifiers xsi:type="ecore:EClass" name="Result">
<eTypeParameters name="T">
<eBounds eClassifier="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
</eTypeParameters>
<eStructuralFeatures xsi:type="ecore:EReference" name="t">
<eGenericType eTypeParameter="#//Result/T"/>
</eStructuralFeatures>
因此您希望将 rootContainment.eGenericType
与引用您的 ETypeParameter 的新 EGenericType 一起使用