.kotlin.kotlin-compiler.1.3.11.source-code.IsFunctor.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.model.functors
import org.jetbrains.kotlin.contracts.model.structure.ESReturns
import org.jetbrains.kotlin.contracts.model.*
import org.jetbrains.kotlin.contracts.model.structure.*
import org.jetbrains.kotlin.types.KotlinType
class IsFunctor(val type: KotlinType, val isNegated: Boolean) : AbstractReducingFunctor() {
override fun doInvocation(arguments: List): 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 {
return if (arg is ESValue)
invokeWithValue(arg, null)
else
arg.effects.flatMap {
if (it !is ConditionalEffect || it.simpleEffect !is ESReturns || it.simpleEffect.value == ESConstant.WILDCARD)
listOf(it)
else
invokeWithValue(it.simpleEffect.value, it.condition)
}
}
private fun invokeWithValue(value: ESValue, additionalCondition: ESExpression?): List {
val trueIs = ESIs(value, this)
val falseIs = ESIs(value, IsFunctor(type, isNegated.not()))
val trueResult = ConditionalEffect(trueIs.and(additionalCondition), ESReturns(true.lift()))
val falseResult = ConditionalEffect(falseIs.and(additionalCondition), ESReturns(false.lift()))
return listOf(trueResult, falseResult)
}
}