private
    val classBytesIndex = (classPathFiles + classPathDependencies + platformClassLoader).map { classBytesIndexFor(it) }

    /**
     * Class file bytes for Kotlin source name, if found.
     */
    fun classBytesFor(sourceName: String): ByteArray? =
        classBytesSupplierForSourceName(sourceName)?.let { it() }

    /**
     * All found class files bytes by Kotlin source name.
     */

    private
    var closed = false

    fun type(sourceName: String): ApiType? = open {
        apiTypesBySourceName.computeIfAbsent(sourceName) {
            repository.classBytesFor(sourceName)?.let { apiTypeFor(sourceName) { it } }
        }?.invoke()
    }

    internal
    fun allTypes(): Sequence<ApiType> = open {