org.jetbrains.kotlin.contracts.ESDataFlowValue.kt Maven / Gradle / Ivy
/*
* 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.contracts
import org.jetbrains.kotlin.contracts.model.ESExpressionVisitor
import org.jetbrains.kotlin.contracts.model.structure.AbstractESValue
import org.jetbrains.kotlin.contracts.model.structure.ESReceiverValue
import org.jetbrains.kotlin.contracts.model.structure.ESVariable
import org.jetbrains.kotlin.descriptors.ValueDescriptor
import org.jetbrains.kotlin.psi.KtLambdaExpression
import org.jetbrains.kotlin.resolve.calls.smartcasts.DataFlowValue
import org.jetbrains.kotlin.resolve.scopes.receivers.ReceiverValue
/**
* [ESDataFlowValue] is an interface, representing some entity that holds [DataFlowValue] for DFA.
*
* Actually that interfaces must be sealed.
*/
interface ESDataFlowValue {
val dataFlowValue: DataFlowValue
fun dataFlowEquals(other: Any?): Boolean {
if (this === other) return true
if (other !is ESDataFlowValue) return false
return dataFlowValue == other.dataFlowValue
}
}
/**
* [ESVariableWithDataFlowValue] is [ESVariable] with data flow information.
*/
class ESVariableWithDataFlowValue(
descriptor: ValueDescriptor,
override val dataFlowValue: DataFlowValue
) : ESVariable(descriptor), ESDataFlowValue {
override fun equals(other: Any?): Boolean = dataFlowEquals(other)
override fun hashCode(): Int {
return dataFlowValue.hashCode()
}
}
/**
* [ESReceiverWithDataFlowValue] is [ESReceiverValue] with data flow information.
*/
class ESReceiverWithDataFlowValue(
receiverValue: ReceiverValue,
override val dataFlowValue: DataFlowValue
) : ESReceiverValue(receiverValue), ESDataFlowValue {
override fun equals(other: Any?): Boolean = dataFlowEquals(other)
override fun hashCode(): Int {
return dataFlowValue.hashCode()
}
}
/**
* [ESLambda] represents lambda functions in Effect System
*/
class ESLambda(val lambda: KtLambdaExpression) : AbstractESValue(null) {
override fun accept(visitor: ESExpressionVisitor): T {
throw IllegalStateException("Lambdas shouldn't be visited by ESExpressionVisitor")
}
}