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Fix subtype check
  • Loading branch information
ArsenHD committed Sep 18, 2022
commit 45b988d32a738f6411a604e84ae6857ff4c39384
Original file line number Diff line number Diff line change
Expand Up @@ -794,6 +794,12 @@ open class ClassId @JvmOverloads constructor(
open val outerClass: Class<*>?
get() = jClass.enclosingClass

open val superclass: Class<*>?
get() = jClass.superclass

open val interfaces: Array<Class<*>>
get() = jClass.interfaces

/**
* For member classes returns a name including
* enclosing classes' simple names e.g. `A.B`.
Expand Down Expand Up @@ -846,7 +852,7 @@ class BuiltinClassId(
elementClassId: ClassId? = null,
override val canonicalName: String,
override val simpleName: String,
// by default we assume that the class is not a member class
// by default, we assume that the class is not a member class
override val simpleNameWithEnclosings: String = simpleName,
override val isNullable: Boolean = false,
override val isPublic: Boolean = true,
Expand All @@ -864,6 +870,10 @@ class BuiltinClassId(
override val allMethods: Sequence<MethodId> = emptySequence(),
override val allConstructors: Sequence<ConstructorId> = emptySequence(),
override val outerClass: Class<*>? = null,
// by default, we assume that the class does not have a superclass (other than Object)
override val superclass: Class<*>? = java.lang.Object::class.java,
// by default, we assume that the class does not implement any interfaces
override val interfaces: Array<Class<*>> = emptyArray(),
override val packageName: String =
when (val index = canonicalName.lastIndexOf('.')) {
-1, 0 -> ""
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -118,17 +118,19 @@ infix fun ClassId.isSubtypeOf(type: ClassId): Boolean {
if (left == right) {
return true
}
val leftClass = this.jClass
val leftClass = this
val interfaces = sequence {
var types = listOf(leftClass)
while (types.isNotEmpty()) {
yieldAll(types)
types = types.map { it.interfaces }.flatMap { it.toList() }
types = types
.flatMap { it.interfaces.toList() }
.map { it.id }
}
}
val superclasses = generateSequence(leftClass) { it.superclass }
val superclasses = generateSequence(leftClass) { it.superclass?.id }
val superTypes = interfaces + superclasses
return right in superTypes.map { it.id }
return right in superTypes
}

infix fun ClassId.isNotSubtypeOf(type: ClassId): Boolean = !(this isSubtypeOf type)
Expand Down