programId: ProgramId
        ) {
            classloadingCache.put(
                programId,
                specializedProgram
            )
        }

        override fun cachedDirFor(
            scriptHost: KotlinScriptHost<*>,
            programId: ProgramId,
            compilationClassPath: ClassPath,
            accessorsClassPath: ClassPath,
            initializer: (File) -> Unit