zio.internal.StackTraceBuilder.scala Maven / Gradle / Ivy
/*
* Copyright 2021-2024 John A. De Goes and the ZIO Contributors
*
* 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 zio.internal
import zio._
import scala.collection.mutable.ArrayBuilder
import scala.reflect.ClassTag
private[zio] class StackTraceBuilder private () { self =>
private var last: Trace = null.asInstanceOf[Trace]
private val builder = new ArrayBuilder.ofRef()(ClassTag.AnyRef.asInstanceOf[ClassTag[Trace]])
def +=(trace: Trace): Unit =
if ((trace ne null) && (trace ne Trace.empty) && (trace ne last)) {
builder += trace
last = trace
}
def clear(): Unit = {
builder.clear()
last = null.asInstanceOf[Trace]
}
def result(): Chunk[Trace] =
Chunk.fromArray(builder.result())
}
private[zio] object StackTraceBuilder {
def make()(unsafe: Unsafe): StackTraceBuilder = new StackTraceBuilder()
}