kotlin.script.dependencies.dependencies_deprecated.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.
*/
@file:Suppress("unused")
package kotlin.script.dependencies
import java.io.File
interface KotlinScriptExternalDependencies : Comparable {
val javaHome: String? get() = null
val classpath: Iterable get() = emptyList()
val imports: Iterable get() = emptyList()
val sources: Iterable get() = emptyList()
val scripts: Iterable get() = emptyList()
override fun compareTo(other: KotlinScriptExternalDependencies): Int =
compareValues(javaHome, other.javaHome)
.chainCompare { compareIterables(classpath, other.classpath) }
.chainCompare { compareIterables(imports, other.imports) }
.chainCompare { compareIterables(sources, other.sources) }
.chainCompare { compareIterables(scripts, other.scripts) }
}
// copied form Comparisons.kt to resolve temporary build issues with dependency on stdlib
private fun > compareValues(a: T?, b: T?): Int {
if (a === b) return 0
if (a == null) return -1
if (b == null) return 1
@Suppress("UNCHECKED_CAST")
return (a as Comparable).compareTo(b)
}
private fun > compareIterables(a: Iterable, b: Iterable): Int {
val ia = a.iterator()
val ib = b.iterator()
while (true) {
if (ia.hasNext() && !ib.hasNext()) return 1
if (!ia.hasNext() && !ib.hasNext()) return 0
if (!ia.hasNext()) return -1
val compRes = compareValues(ia.next(), ib.next())
if (compRes != 0) return compRes
}
}
private inline fun Int.chainCompare(compFn: () -> Int): Int = if (this != 0) this else compFn()