fun <T> (() -> T).withIdentity(vararg deps: Any?): () -> T = WrappedFunction0(
    this,
    deps.contentHashCode()
)

private class WrappedFunction0<T>(
    private val function: () -> T,
    private val identity: Int
) : () -> T {
    override fun invoke() = function()
    override fun equals(other: Any?) = other is WrappedFunction0<*> && identity == other.identity
    override fun hashCode() = identity
}