需要检查子类（类类型）是否继承自超类，通过方法 visitCallExpression(UCallExpression) 使用自定义检测器

Question

我创建了自己的 lint Detector.visitCallExpression(UCallExpression)，我需要找到一种方法来检查传递给方法调用的 MyClass 类参数是否是 MyParent 类的子类？

//Example having this below code somewhere to be Lint scanned.
someObject.method(MyClass.class)

如何确定 MyClass.class 继承自 MyParent 类？

//Using the IntelliJ InheritanceUtil utility class
//Converts argument of MyClass.class -> psiClass
InheritanceUtil.isInheritor(psiClass, "com.somePackage.MyParent")

我从 MyClass.class 参数中得到的 PsiClass 被解析为基础 java.lang.Class 对象，所以 InheritanceUtil 检查总是返回 false~

Answer 1

反正我找到了解决办法

/**
 * Detects if a Class<?> => PsiClass:Class<?> is a subclass of a PsiClass(?)
 *
 * @param type The PsiType object that is a PsiClass of the class to be checked for subclass
 * @param compareToParentCanonicalClass The Class canonical name to be compared as a super/parent class
 *
 * @return true if the PsiType is a subclass of compareToParentCanonicalClass, false otherwise
 */
open fun isPsiTypeSubClassOfParentClassType(type: PsiType, compareToParentCanonicalClass: String): Boolean {
    println("superClass checking:$type")
    var psiClss = PsiTypesUtil.getPsiClass(type)
    val pct = type as PsiClassType
    val psiTypes: List<PsiType> = ArrayList<PsiType>(pct.resolveGenerics().substitutor.substitutionMap.values)
    for (i in psiTypes.indices) {
        println("canonical:"+ psiTypes[i].canonicalText)
        var psiClass = psiClss?.let { JavaPsiFacade.getInstance(it.project).findClass(psiTypes[i].canonicalText, psiClss.resolveScope) }
        return InheritanceUtil.isInheritor(psiClass, compareToParentCanonicalClass)
    }
    return false;
}