org.jetbrains.kotlin.contracts.model.functors.AbstractUnaryFunctor.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
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package org.jetbrains.kotlin.contracts.model.functors
import org.jetbrains.kotlin.contracts.model.*
import org.jetbrains.kotlin.contracts.model.structure.isReturns
import org.jetbrains.kotlin.contracts.model.structure.isWildcard
import org.jetbrains.kotlin.contracts.model.visitors.Reducer
/**
* Unary functor that has sequential semantics, i.e. it won't apply to
* computations that can't be guaranteed to be finished.
*
* It provides [applyToFinishingClauses] method for successors, which is guaranteed to
* be called only on clauses that haven't failed before reaching functor transformation.
*/
abstract class AbstractUnaryFunctor : AbstractFunctor() {
override fun doInvocation(arguments: List, typeSubstitution: ESTypeSubstitution, reducer: Reducer): List {
assert(arguments.size == 1) { "Wrong size of arguments list for Unary operator: expected 1, got ${arguments.size}" }
return invokeWithArguments(arguments[0])
}
fun invokeWithArguments(arg: Computation): List {
val returning =
arg.effects.filterIsInstance().filter { it.simpleEffect.isReturns { !value.isWildcard } }
val rest = arg.effects - returning
val evaluatedByFunctor = invokeWithReturningEffects(returning)
return rest + evaluatedByFunctor
}
protected abstract fun invokeWithReturningEffects(list: List): List
}