.kotlin.kotlin-compiler.1.3.11.source-code.EffectsInterpreters.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.interpretation
import org.jetbrains.kotlin.contracts.description.CallsEffectDeclaration
import org.jetbrains.kotlin.contracts.description.ConditionalEffectDeclaration
import org.jetbrains.kotlin.contracts.description.EffectDeclaration
import org.jetbrains.kotlin.contracts.description.ReturnsEffectDeclaration
import org.jetbrains.kotlin.contracts.model.ConditionalEffect
import org.jetbrains.kotlin.contracts.model.ESEffect
import org.jetbrains.kotlin.contracts.model.SimpleEffect
import org.jetbrains.kotlin.contracts.model.structure.ESCalls
import org.jetbrains.kotlin.contracts.model.structure.ESReturns
internal class CallsEffectInterpreter(private val dispatcher: ContractInterpretationDispatcher) : EffectDeclarationInterpreter {
override fun tryInterpret(effectDeclaration: EffectDeclaration): ESEffect? {
if (effectDeclaration !is CallsEffectDeclaration) return null
val variable = dispatcher.interpretVariable(effectDeclaration.variableReference) ?: return null
val kind = effectDeclaration.kind
return ESCalls(variable, kind)
}
}
internal class ConditionalEffectInterpreter(private val dispatcher: ContractInterpretationDispatcher) {
fun interpret(conditionalEffectDeclaration: ConditionalEffectDeclaration): ConditionalEffect? {
val effect = dispatcher.interpretEffect(conditionalEffectDeclaration.effect) as? SimpleEffect ?: return null
val condition = dispatcher.interpretCondition(conditionalEffectDeclaration.condition) ?: return null
return ConditionalEffect(condition, effect)
}
}
internal class ReturnsEffectInterpreter(private val dispatcher: ContractInterpretationDispatcher) : EffectDeclarationInterpreter {
override fun tryInterpret(effectDeclaration: EffectDeclaration): ESEffect? {
if (effectDeclaration !is ReturnsEffectDeclaration) return null
val returnedValue = dispatcher.interpretConstant(effectDeclaration.value) ?: return null
return ESReturns(returnedValue)
}
}