/*
* Copyright 2010-2015 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.cfg.pseudocode.instructions.special
import org.jetbrains.kotlin.cfg.pseudocode.instructions.*
import org.jetbrains.kotlin.psi.KtElement
import java.util.*
class SubroutineExitInstruction(
val subroutine: KtElement,
blockScope: BlockScope,
val isError: Boolean
) : InstructionImpl(blockScope) {
private var _sink: SubroutineSinkInstruction? = null
var sink: SubroutineSinkInstruction
get() = _sink!!
set(value: SubroutineSinkInstruction) {
_sink = outgoingEdgeTo(value) as SubroutineSinkInstruction
}
override val nextInstructions: Collection<Instruction>
get() = Collections.singleton(sink)
override fun accept(visitor: InstructionVisitor) {
visitor.visitSubroutineExit(this)
}
override fun <R> accept(visitor: InstructionVisitorWithResult<R>): R = visitor.visitSubroutineExit(this)
override fun toString(): String = if (isError) "<ERROR>" else "<END>"
override fun createCopy(): InstructionImpl =
SubroutineExitInstruction(subroutine, blockScope, isError)
}