*/
public interface VariantDerivationStrategy {
    boolean derivesVariants();
    ImmutableList<? extends ModuleConfigurationMetadata> derive(ModuleComponentResolveMetadata metadata);

import org.gradle.api.internal.artifacts.repositories.metadata.MavenMutableModuleMetadataFactory;
import org.gradle.cache.IndexedCache;
import org.gradle.internal.component.external.model.ModuleComponentResolveMetadata;
import org.gradle.internal.component.external.model.MutableModuleComponentResolveMetadata;
import org.gradle.internal.hash.ChecksumService;
import org.gradle.internal.resource.local.DefaultPathKeyFileStore;

 */
public class DefaultModuleComponentGraphResolveState<M extends ModuleComponentResolveMetadata> extends DefaultExternalComponentGraphResolveState<ModuleComponentGraphResolveMetadata, M> implements ModuleComponentGraphResolveState {

import org.gradle.api.artifacts.component.ModuleComponentIdentifier
import org.gradle.api.internal.artifacts.DefaultModuleIdentifier
import org.gradle.internal.component.external.model.ModuleComponentResolveMetadata
import org.gradle.internal.component.model.ComponentGraphResolveState
import org.gradle.internal.component.model.ComponentGraphSpecificResolveState
import org.gradle.internal.resolve.ModuleVersionNotFoundException

import org.gradle.internal.component.external.model.DefaultModuleComponentSelector;
import org.gradle.internal.component.external.model.ModuleComponentArtifactMetadata;
import org.gradle.internal.component.external.model.ModuleComponentResolveMetadata;
import org.gradle.internal.component.external.model.VariantDerivationStrategy;
import org.gradle.internal.component.external.model.VariantMetadataRules;
import org.gradle.internal.component.model.Exclude;

        return INSTANCE;
    }

    @Override
    public boolean derivesVariants() {
        return false;
    }

    @Override
    public ImmutableList<? extends ModuleConfigurationMetadata> derive(ModuleComponentResolveMetadata metadata) {
        throw new UnsupportedOperationException("This method should not have been called.");
    }

        this.idGenerator = idFactory;
        this.attributeDesugaring = attributeDesugaring;
    }

    public ModuleComponentGraphResolveState stateFor(ModuleComponentResolveMetadata metadata) {
        if (metadata instanceof IvyModuleResolveMetadata) {
            IvyModuleResolveMetadata ivyMetadata = (IvyModuleResolveMetadata) metadata;

import org.gradle.internal.SystemProperties;
import org.gradle.internal.component.external.model.ModuleComponentArtifactMetadata;
import org.gradle.internal.component.external.model.ModuleComponentResolveMetadata;
import org.gradle.internal.component.external.model.MutableModuleComponentResolveMetadata;
import org.gradle.internal.component.model.ComponentOverrideMetadata;

import java.util.Set;

/**
 * Common base class for the realised versions of {@link ModuleComponentResolveMetadata} implementations.
 *
 * The realised part is about the application of {@link VariantMetadataRules} which are applied eagerly
 * to configuration or variant data.
 *
 * This type hierarchy is used whenever the {@code ModuleComponentResolveMetadata} needs to outlive
 * the build execution.
 */

    /**
     * The module version associated with this module.
     */
    ModuleVersionIdentifier getModuleVersionId();

    /**
     * Creates an immutable copy of this meta-data.
     */
    ModuleComponentResolveMetadata asImmutable();

    /**
     * Sets the component id and legacy module version id
     */
    void setId(ModuleComponentIdentifier componentId);

    boolean isMissing();