/*
* 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.
*/
package org.jetbrains.kotlin.ir.util
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
import org.jetbrains.kotlin.renderer.ClassifierNamePolicy
import org.jetbrains.kotlin.renderer.DescriptorRenderer
import org.jetbrains.kotlin.renderer.DescriptorRendererModifier
import org.jetbrains.kotlin.renderer.OverrideRenderingPolicy
import java.util.*
object StableDescriptorsComparator : Comparator<DeclarationDescriptor> {
override fun compare(member1: DeclarationDescriptor?, member2: DeclarationDescriptor?): Int {
if (member1 == member2) return 0
if (member1 == null) return -1
if (member2 == null) return 1
val image1 = DESCRIPTOR_RENDERER.render(member1)
val image2 = DESCRIPTOR_RENDERER.render(member2)
return image1.compareTo(image2)
}
private val DESCRIPTOR_RENDERER = DescriptorRenderer.withOptions {
withDefinedIn = false
overrideRenderingPolicy = OverrideRenderingPolicy.RENDER_OPEN_OVERRIDE
includePropertyConstant = true
classifierNamePolicy = ClassifierNamePolicy.FULLY_QUALIFIED
verbose = true
modifiers = DescriptorRendererModifier.ALL
}
}