org.scalajs.linker.backend.emitter.SyntheticProperty.scala Maven / Gradle / Ivy
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/*
* Scala.js (https://www.scala-js.org/)
*
* Copyright EPFL.
*
* Licensed under Apache License 2.0
* (https://www.apache.org/licenses/LICENSE-2.0).
*
* See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
*/
package org.scalajs.linker.backend.emitter
import org.scalajs.ir.OriginalName
/** Represents a synthetic property of some Scala classes.
*
* A synthetic property does not exist as `FieldDef` or `MethodDef` in the IR,
* but is added by the Emitter on some classes that belong to the Scala class
* hierarchy.
*
* Currently, these only include properties of the `ArrayClass`es, as well as
* the magic `jl.Class.data` property.
*
* These properties live in the same namespace as Scala field and method
* names, because the `ArrayClass`es extend `j.l.Object`. Therefore, they
* must take part in the global property minification algorithm.
*/
final class SyntheticProperty(val nonMinifiedName: String)
extends Comparable[SyntheticProperty] {
val originalName: OriginalName = OriginalName(nonMinifiedName)
def compareTo(that: SyntheticProperty): Int =
this.nonMinifiedName.compareTo(that.nonMinifiedName)
override def toString(): String = s"SyntheticProperty($nonMinifiedName)"
}
object SyntheticProperty {
/** `ArrayClass.u`: the underlying array or typed array. */
val u: SyntheticProperty = new SyntheticProperty("u")
/** `ArrayClass.get()`: gets one element. */
val get: SyntheticProperty = new SyntheticProperty("get")
/** `ArrayClass.set()`: sets one element. */
val set: SyntheticProperty = new SyntheticProperty("set")
/** `ArrayClass.copyTo()`: copies from that array to another array. */
val copyTo: SyntheticProperty = new SyntheticProperty("copyTo")
/** `jl.Class.data`: the underlying `TypeData` of the class. */
val data: SyntheticProperty = new SyntheticProperty("data")
}