/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.resolve.calls.inference.model
import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
import org.jetbrains.kotlin.resolve.calls.model.*
import org.jetbrains.kotlin.resolve.calls.tower.ResolutionCandidateApplicability
import org.jetbrains.kotlin.resolve.calls.tower.ResolutionCandidateApplicability.INAPPLICABLE
import org.jetbrains.kotlin.resolve.calls.tower.ResolutionCandidateApplicability.INAPPLICABLE_WRONG_RECEIVER
import org.jetbrains.kotlin.types.KotlinType
import org.jetbrains.kotlin.types.UnwrappedType
sealed class ConstraintPosition
class ExplicitTypeParameterConstraintPosition(val typeArgument: SimpleTypeArgument) : ConstraintPosition() {
override fun toString() = "TypeParameter $typeArgument"
}
class ExpectedTypeConstraintPosition(val topLevelCall: KotlinCall) : ConstraintPosition() {
override fun toString() = "ExpectedType for call $topLevelCall"
}
class DeclaredUpperBoundConstraintPosition(val typeParameterDescriptor: TypeParameterDescriptor) : ConstraintPosition() {
override fun toString() = "DeclaredUpperBound ${typeParameterDescriptor.name} from ${typeParameterDescriptor.containingDeclaration}"
}
class ArgumentConstraintPosition(val argument: KotlinCallArgument) : ConstraintPosition() {
override fun toString() = "Argument $argument"
}
class ReceiverConstraintPosition(val argument: KotlinCallArgument) : ConstraintPosition() {
override fun toString() = "Receiver $argument"
}
class FixVariableConstraintPosition(val variable: NewTypeVariable) : ConstraintPosition() {
override fun toString() = "Fix variable $variable"
}
class KnownTypeParameterConstraintPosition(val typeArgument: KotlinType) : ConstraintPosition() {
override fun toString() = "TypeArgument $typeArgument"
}
class LambdaArgumentConstraintPosition(val lambda: ResolvedLambdaAtom) : ConstraintPosition() {
override fun toString(): String {
return "LambdaArgument $lambda"
}
}
class DelegatedPropertyConstraintPosition(val topLevelCall: KotlinCall) : ConstraintPosition() {
override fun toString() = "Constraint from call $topLevelCall for delegated property"
}
class IncorporationConstraintPosition(val from: ConstraintPosition, val initialConstraint: InitialConstraint) : ConstraintPosition() {
override fun toString() = "Incorporate $initialConstraint from position $from"
}
class CoroutinePosition() : ConstraintPosition() {
override fun toString(): String = "for coroutine call"
}
@Deprecated("Should be used only in SimpleConstraintSystemImpl")
object SimpleConstraintSystemConstraintPosition : ConstraintPosition()
abstract class ConstraintSystemCallDiagnostic(applicability: ResolutionCandidateApplicability) : KotlinCallDiagnostic(applicability) {
override fun report(reporter: DiagnosticReporter) = reporter.constraintError(this)
}
class NewConstraintError(
val lowerType: UnwrappedType,
val upperType: UnwrappedType,
val position: IncorporationConstraintPosition
) : ConstraintSystemCallDiagnostic(if (position.from is ReceiverConstraintPosition) INAPPLICABLE_WRONG_RECEIVER else INAPPLICABLE)
class CapturedTypeFromSubtyping(
val typeVariable: NewTypeVariable,
val constraintType: UnwrappedType,
val position: ConstraintPosition
) : ConstraintSystemCallDiagnostic(INAPPLICABLE)
class NotEnoughInformationForTypeParameter(val typeVariable: NewTypeVariable) : ConstraintSystemCallDiagnostic(INAPPLICABLE)
class ConstrainingTypeIsError(
val typeVariable: NewTypeVariable,
val constraintType: UnwrappedType,
val position: IncorporationConstraintPosition
) : ConstraintSystemCallDiagnostic(INAPPLICABLE)