org.jetbrains.kotlin.contracts.model.functors.AbstractBinaryFunctor.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.
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package org.jetbrains.kotlin.contracts.model.functors
import org.jetbrains.kotlin.contracts.model.*
import org.jetbrains.kotlin.contracts.model.structure.ESConstant
import org.jetbrains.kotlin.contracts.model.structure.ESOr
import org.jetbrains.kotlin.contracts.model.structure.isReturns
import org.jetbrains.kotlin.contracts.model.structure.isWildcard
import org.jetbrains.kotlin.contracts.model.visitors.Reducer
abstract class AbstractBinaryFunctor : AbstractFunctor() {
override fun doInvocation(arguments: List, typeSubstitution: ESTypeSubstitution, reducer: Reducer): List {
assert(arguments.size == 2) { "Wrong size of arguments list for Binary functor: expected 2, got ${arguments.size}" }
return invokeWithArguments(arguments[0], arguments[1])
}
fun invokeWithArguments(left: Computation, right: Computation): List {
if (left is ESConstant) return invokeWithConstant(right, left)
if (right is ESConstant) return invokeWithConstant(left, right)
val leftValueReturning =
left.effects.filterIsInstance().filter { it.simpleEffect.isReturns { !value.isWildcard } }
val rightValueReturning =
right.effects.filterIsInstance().filter { it.simpleEffect.isReturns { !value.isWildcard } }
val nonInterestingEffects =
left.effects - leftValueReturning + right.effects - rightValueReturning
val evaluatedByFunctor = invokeWithReturningEffects(leftValueReturning, rightValueReturning)
return nonInterestingEffects + evaluatedByFunctor
}
protected fun foldConditionsWithOr(list: List): ESExpression? =
if (list.isEmpty())
null
else
list.map { it.condition }.reduce { acc, condition -> ESOr(acc, condition) }
protected abstract fun invokeWithConstant(computation: Computation, constant: ESConstant): List
protected abstract fun invokeWithReturningEffects(
left: List,
right: List
): List
}