public enum MarkerResource {
        // The transformed marker resource is an empty file to reduce archive size in the most common case.
        TRANSFORMED(new byte[0]),
        // Not transformed marker resource is a 1-byte file with a single "N" symbol.
        NOT_TRANSFORMED(new byte[]{'N'});

        public static final String RESOURCE_NAME = TransformReplacer.class.getName() + ".transformed";

	}
}

type link struct {
	t Transformer
	// b[p:n] holds the bytes to be transformed by t.
	b []byte
	p int
	n int
}

func (l *link) src() []byte {
	return l.b[l.p:l.n]
}

func (l *link) dst() []byte {
	return l.b[l.n:]
}

// Chain returns a Transformer that applies t in sequence.
func Chain(t ...Transformer) Transformer {
	if len(t) == 0 {
		return nop{}
	}

            if (!JarUtil.isMultiReleaseJarManifest(parsedManifest)) {
                // If the original JAR is not multi-release, we don't need the manifest in the transformed JAR at all.
                return;
            }
            isMultiReleaseJar = true;

            // We want the transformed JAR to also be a proper multi-release JAR.
            // To do so it must have the "Multi-Release: true" attribute.

        def outputJar = testDir.file("transformed.jar")
        return new JarTestFixture(transform(factory, originalJar, outputJar), 'UTF-8', null, /* checkManifest */ false)
    }

    private TestFile transformDirectory(TransformFactoryType factory, File originalDir) {
        def outputDir = testDir.file("transformed")
        return new TestFile(transform(factory, originalDir, outputDir))
    }

package org.gradle.api.internal.provider;

import org.gradle.api.Transformer;
import org.gradle.api.provider.Provider;

import javax.annotation.Nullable;

public class FlatMapProvider<S, T> extends AbstractMinimalProvider<S> {
    private final ProviderInternal<? extends T> provider;
    private final Transformer<? extends Provider<? extends S>, ? super T> transformer;

        String destFileName = source.getName();
        File receipt = new File(destDir, destFileName + ".receipt");
        File transformed = new File(destDir, destFileName);

        // Avoid file locking overhead by checking for the receipt first.
        if (receipt.isFile()) {
            return transformed;
        }

        final File lockFile = new File(destDir, destFileName + ".lock");

     * Base class implementation applies the {@link ClassTransform} to the code.
     *
     * @param builder the builder for the transformed output
     * @param classEntry the entry to process
     * @throws IOException if reading or writing entry fails
     */

     *
     * @param artifactTransformer A transformer applied to all artifacts and sub-variant artifacts.
     *
     * @return A copy of this metadata, with the given transformer applied to all artifacts.
     */

import org.apache.maven.model.building.ModelBuildingException;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;

/**
 * Transformed artifact is derived with some transformation from source artifact.
 *
 * @since TBD
 */
class TransformedArtifact extends DefaultArtifact {

    private static final int SHA1_BUFFER_SIZE = 8192;

        then:
        outputContains("files: [test-lib.jar, transformed-a1.jar, transformed-b2.jar, test-1.0.jar]")
        outputContains("components: [test-lib.jar, project :a, project :b, org:test:1.0]")
        outputContains("variants: [{artifactType=jar}, {artifactType=jar, buildType=debug, flavor=one, usage=transformed}, {artifactType=jar, usage=transformed}, {artifactType=jar, org.gradle.status=release}]")
    }