.kotlin.kotlin-compiler.1.3.11.source-code.StrictBasicValue.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2016 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.codegen.optimization.common
import org.jetbrains.org.objectweb.asm.Type
import org.jetbrains.org.objectweb.asm.tree.analysis.BasicValue
/**
* This class has strict `equals` implementation, that does not accept its subclasses,
* unlike BasicValue that requires `other` instance only to be a subtype of BasicValue and must have the same `type`
*/
open class StrictBasicValue(type: Type?) : BasicValue(type) {
companion object {
@JvmField
val UNINITIALIZED_VALUE = StrictBasicValue(null)
@JvmField
val INT_VALUE = StrictBasicValue(Type.INT_TYPE)
@JvmField
val FLOAT_VALUE = StrictBasicValue(Type.FLOAT_TYPE)
@JvmField
val LONG_VALUE = StrictBasicValue(Type.LONG_TYPE)
@JvmField
val DOUBLE_VALUE = StrictBasicValue(Type.DOUBLE_TYPE)
@JvmField
val BOOLEAN_VALUE = StrictBasicValue(Type.BOOLEAN_TYPE)
@JvmField
val CHAR_VALUE = StrictBasicValue(Type.CHAR_TYPE)
@JvmField
val BYTE_VALUE = StrictBasicValue(Type.BYTE_TYPE)
@JvmField
val SHORT_VALUE = StrictBasicValue(Type.SHORT_TYPE)
@JvmField
val REFERENCE_VALUE = StrictBasicValue(Type.getObjectType("java/lang/Object"))
@JvmField
val NULL_VALUE = StrictBasicValue(Type.getObjectType("java/lang/Object"))
}
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (other == null || other::class.java != this::class.java) return false
if (!super.equals(other)) return false
other as StrictBasicValue
if (this === NULL_VALUE) return other === NULL_VALUE
if (other === NULL_VALUE) return this === NULL_VALUE
if (type != other.type) return false
return true
}
override fun hashCode() = (type?.hashCode() ?: 0)
override fun toString(): String {
if (this === UNINITIALIZED_VALUE) return "."
return super.toString()
}
}