org.jetbrains.kotlin.types.StubTypes.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.types
import org.jetbrains.kotlin.resolve.scopes.MemberScope
import org.jetbrains.kotlin.types.checker.KotlinTypeRefiner
import org.jetbrains.kotlin.types.checker.NewTypeVariableConstructor
import org.jetbrains.kotlin.types.error.ErrorScopeKind
import org.jetbrains.kotlin.types.error.ErrorTypeKind
import org.jetbrains.kotlin.types.model.StubTypeMarker
import org.jetbrains.kotlin.types.error.ErrorUtils
class StubTypeForBuilderInference(
originalTypeVariable: NewTypeVariableConstructor,
isMarkedNullable: Boolean,
override val constructor: TypeConstructor = createConstructor(originalTypeVariable)
) : AbstractStubType(originalTypeVariable, isMarkedNullable), StubTypeMarker {
override fun materialize(newNullability: Boolean): AbstractStubType =
StubTypeForBuilderInference(originalTypeVariable, newNullability, constructor)
override val memberScope: MemberScope = originalTypeVariable.builtIns.anyType.memberScope
override fun toString(): String {
// BI means builder inference
return "Stub (BI): $originalTypeVariable${if (isMarkedNullable) "?" else ""}"
}
}
class StubTypeForTypeVariablesInSubtyping(
originalTypeVariable: NewTypeVariableConstructor,
isMarkedNullable: Boolean,
override val constructor: TypeConstructor = createConstructor(originalTypeVariable)
) : AbstractStubType(originalTypeVariable, isMarkedNullable), StubTypeMarker {
override fun materialize(newNullability: Boolean): AbstractStubType =
StubTypeForTypeVariablesInSubtyping(originalTypeVariable, newNullability, constructor)
override fun toString(): String {
return "Stub (subtyping): $originalTypeVariable${if (isMarkedNullable) "?" else ""}"
}
}
// This type is used as a replacement of type variables for provideDelegate resolve
class StubTypeForProvideDelegateReceiver(
originalTypeVariable: NewTypeVariableConstructor,
isMarkedNullable: Boolean,
override val constructor: TypeConstructor = createConstructor(originalTypeVariable)
) : AbstractStubType(originalTypeVariable, isMarkedNullable) {
override fun materialize(newNullability: Boolean): StubTypeForProvideDelegateReceiver =
StubTypeForProvideDelegateReceiver(originalTypeVariable, newNullability, constructor)
override fun toString(): String {
return "Stub (delegation): $originalTypeVariable${if (isMarkedNullable) "?" else ""}"
}
}
abstract class AbstractStubType(val originalTypeVariable: NewTypeVariableConstructor, override val isMarkedNullable: Boolean) : SimpleType() {
override val memberScope: MemberScope = ErrorUtils.createErrorScope(ErrorScopeKind.STUB_TYPE_SCOPE, originalTypeVariable.toString())
override val arguments: List
get() = emptyList()
override val attributes: TypeAttributes
get() = TypeAttributes.Empty
override fun replaceAttributes(newAttributes: TypeAttributes): SimpleType = this
override fun makeNullableAsSpecified(newNullability: Boolean): SimpleType {
return if (newNullability == isMarkedNullable) this else materialize(newNullability)
}
@TypeRefinement
override fun refine(kotlinTypeRefiner: KotlinTypeRefiner) = this
abstract fun materialize(newNullability: Boolean): AbstractStubType
companion object {
fun createConstructor(originalTypeVariable: NewTypeVariableConstructor) =
ErrorUtils.createErrorTypeConstructor(ErrorTypeKind.STUB_TYPE, originalTypeVariable.toString())
}
}