Move BinaryVersion to metadata, JVM versions to metadata.jvm

To be used in kotlinx-metadata
2018-05-16 12:12:37 +02:00
parent e5a5d834ab
commit 1b15619457
39 changed files with 103 additions and 142 deletions
@@ -1,80 +0,0 @@
-/*
- * 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.serialization.deserialization
-
-/**
- * Subclasses of this class are used to identify different versions of the binary output of the compiler and their compatibility guarantees.
- * - Major version should be increased only when the new binary format is neither forward- nor backward compatible.
- *   This shouldn't really ever happen at all.
- * - Minor version should be increased when the new format is backward compatible,
- *   i.e. the new compiler can process old data, but the old compiler will not be able to process new data.
- * - Patch version can be increased freely and is only supposed to be used for debugging. Increase the patch version when you
- *   make a change to binaries which is both forward- and backward compatible.
- */
-abstract class BinaryVersion(vararg val numbers: Int) {
-    val major: Int = numbers.getOrNull(0) ?: UNKNOWN
-    val minor: Int = numbers.getOrNull(1) ?: UNKNOWN
-    val patch: Int = numbers.getOrNull(2) ?: UNKNOWN
-    val rest: List<Int> = if (numbers.size > 3) numbers.asList().subList(3, numbers.size).toList() else emptyList()
-
-    abstract fun isCompatible(): Boolean
-
-    fun toArray(): IntArray = numbers
-
-    /**
-     * Returns true if this version of some format loaded from some binaries is compatible
-     * to the expected version of that format in the current compiler.
-     *
-     * @param ourVersion the version of this format in the current compiler
-     */
-    protected fun isCompatibleTo(ourVersion: BinaryVersion): Boolean {
-        return if (major == 0) ourVersion.major == 0 && minor == ourVersion.minor
-        else major == ourVersion.major && minor <= ourVersion.minor
-    }
-
-    fun isAtLeast(major: Int, minor: Int, patch: Int): Boolean {
-        if (this.major > major) return true
-        if (this.major < major) return false
-
-        if (this.minor > minor) return true
-        if (this.minor < minor) return false
-
-        return this.patch >= patch
-    }
-
-    override fun toString(): String {
-        val versions = toArray().takeWhile { it != UNKNOWN }
-        return if (versions.isEmpty()) "unknown" else versions.joinToString(".")
-    }
-
-    override fun equals(other: Any?) =
-            other != null &&
-            this::class.java == other::class.java &&
-            major == (other as BinaryVersion).major && minor == other.minor && patch == other.patch && rest == other.rest
-
-    override fun hashCode(): Int{
-        var result = major
-        result += 31 * result + minor
-        result += 31 * result + patch
-        result += 31 * result + rest.hashCode()
-        return result
-    }
-
-    companion object {
-        private val UNKNOWN = -1
-    }
-}