XRawType.kt
/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.room.compiler.processing
import com.squareup.javapoet.TypeName
/**
* It is common for processors to check certain types against known types.
* e.g. you may want to check if an [XType] is a [List], or an [Iterable] or is assignable from
* an [Iterable].
*
* Kotlin does not model raw types, which makes it harder for our java compatibility.
* Instead, we model them as [XRawType], a special purpose class.
*
* Similar to how [XMethodType] is not an [XType], [XRawType] is not an [XType] either. It has a
* very specific use case to check against raw types and nothing else.
*
* Instances of XRawType implement equality.
*/
interface XRawType {
val typeName: TypeName
/**
* Returns `true` if this raw type can be assigned from [other].
*/
fun isAssignableFrom(other: XRawType): Boolean
/**
* Returns `true` if this raw type can be assigned from [other].
*/
fun isAssignableFrom(other: XType) = isAssignableFrom(other.rawType)
}