org.jetbrains.kotlin.js.dce.printTree.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.
*/
package org.jetbrains.kotlin.js.dce
import org.jetbrains.kotlin.js.dce.Context.Node
fun printTree(root: Node, consumer: (String) -> Unit, printNestedMembers: Boolean = false, showLocations: Boolean = false) {
printTree(root, consumer, 0, Settings(printNestedMembers, showLocations))
}
private fun printTree(node: Node, consumer: (String) -> Unit, depth: Int, settings: Settings) {
val sb = StringBuilder()
sb.append(" ".repeat(depth)).append(node.qualifier?.memberName ?: node.toString())
if (node.reachable) {
sb.append(" (reachable")
if (settings.showLocations) {
val locations = node.usedByAstNodes.mapNotNull { it.extractLocation() }
if (locations.isNotEmpty()) {
sb.append(" from ").append(locations.joinToString { it.asString() })
}
}
sb.append(")")
}
consumer(sb.toString())
for (memberName in node.memberNames.sorted()) {
val member = node.member(memberName)
if (!member.declarationReachable) continue
if ((!node.reachable || !member.reachable) || settings.printNestedMembers) {
printTree(member, consumer, depth + 1, settings)
}
}
}
private class Settings(val printNestedMembers: Boolean, val showLocations: Boolean)