return Stub(ResolvedGraphDependency) {
            getRequested() >> selector
            getFromVariant() >> id(from)
            getSelected() >> id(selected)
            getSelectedVariant() >> id(selected)
            getFailure() >> failure
        }
    }

    private Long id(String module) {
        return module.hashCode()
    }

 * 3. The selector was part of resolution to a particular module version.
 * In this case {@link #resolved} will be `true` and {@link ModuleResolveState#getSelected()} will point to the selected component.
 */
class SelectorState implements DependencyGraphSelector, ResolvableSelectorState {
    private final Long id;
    private final DependencyState dependencyState;

        for (DependencyResult d : node.getDependencies()) {
            dependencyAction.execute(d);
            if (d instanceof ResolvedDependencyResult) {
                eachDependency(((ResolvedDependencyResult) d).getSelected(), dependencyAction, visited);
            }
        }
    }

    private AttributeMatchDetails match(Attribute<?> actualAttribute, @Nullable Object actualValue, AttributeContainer requestedAttributes) {

        incrementSkipped(1);
    }

    @Override
    public void incrementSkipped(long amount) {
        skipped += amount;
        updateProgress();
    }

    public long getDeleted() {
        return deleted;
    }

    private void updateProgress() {
        buildOperationContext.progress(mandatoryNumber(deleted, " entry", " entries") + " deleted"

                    FileUtils.touch(gcFile);
                    LOGGER.info("{} cleaned up in {}.", cleanableStore.getDisplayName(), timer.getElapsed());
                    context.setResult(new CacheCleanupResult(progressMonitor.getDeleted(), lastCleanupTime));
                } catch (IOException e) {
                    throw new UncheckedIOException(e);
                }
            }

            @Override