POM: Split into -bom, -core, -parent, -bundle.

Change-Id: I1fd4cc766b60266ef9dcc40e943b45d067dd7b90

6 files changed, 0 insertions, 1325 deletions

diff --git a/src/main/java/eu/mulk/jgvariant/core/Decoder.java b/src/main/java/eu/mulk/jgvariant/core/Decoder.java
deleted file mode 100644
index d2f2403..0000000
--- a/src/main/java/eu/mulk/jgvariant/core/Decoder.java
+++ /dev/null
@@ -1,652 +0,0 @@
-package eu.mulk.jgvariant.core;
-
-import static java.nio.ByteOrder.LITTLE_ENDIAN;
-
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.RecordComponent;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.charset.Charset;
-import java.text.ParseException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Optional;
-import org.apiguardian.api.API;
-import org.apiguardian.api.API.Status;
-import org.jetbrains.annotations.Nullable;
-
-/**
- * Type class for decodable types.
- *
- * <p>Use the {@code of*} family of constructor methods to acquire a suitable {@link Decoder} for
- * the type you wish to decode.
- *
- * <p><strong>Example</strong>
- *
- * <p>To parse a GVariant of type {@code "a(si)"}, which is an array of pairs of {@link String} and
- * {@code int}, you can use the following code:
- *
- * <pre>{@code
- * record ExampleRecord(String s, int i) {}
- *
- * var decoder =
- *   Decoder.ofArray(
- *     Decoder.ofStructure(
- *       ExampleRecord.class,
- *       Decoder.ofString(UTF_8),
- *       Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)));
- *
- * byte[] bytes = ...;
- * List<ExampleRecord> example = decoder.decode(ByteBuffer.wrap(bytes));
- * }</pre>
- *
- * @param <T> the type that the {@link Decoder} can decode.
- */
-@SuppressWarnings("java:S1610")
-@API(status = Status.EXPERIMENTAL)
-public abstract class Decoder<T> {
-
-  private Decoder() {}
-
-  /**
-   * Decodes a {@link ByteBuffer} holding a serialized GVariant into a value of type {@code T}.
-   *
-   * <p><strong>Note:</strong> Due to the way the GVariant serialization format works, it is
-   * important that the start and end boundaries of the passed byte slice correspond to the actual
-   * start and end of the serialized value. The format does generally not allow for the dynamic
-   * discovery of the end of the data structure.
-   *
-   * @param byteSlice a byte slice holding a serialized GVariant.
-   * @return the deserialized value.
-   * @throws java.nio.BufferUnderflowException if the byte buffer is shorter than the requested
-   *     data.
-   * @throws IllegalArgumentException if the serialized GVariant is ill-formed
-   */
-  public abstract T decode(ByteBuffer byteSlice);
-
-  abstract byte alignment();
-
-  @Nullable
-  abstract Integer fixedSize();
-
-  final boolean hasFixedSize() {
-    return fixedSize() != null;
-  }
-
-  /**
-   * Switches the input {@link ByteBuffer} to a given {@link ByteOrder} before reading from it.
-   *
-   * @param byteOrder the byte order to use.
-   * @return a new, decorated {@link Decoder}.
-   */
-  public Decoder<T> withByteOrder(ByteOrder byteOrder) {
-    var delegate = this;
-
-    return new Decoder<>() {
-      @Override
-      public byte alignment() {
-        return delegate.alignment();
-      }
-
-      @Override
-      public @Nullable Integer fixedSize() {
-        return delegate.fixedSize();
-      }
-
-      @Override
-      public T decode(ByteBuffer byteSlice) {
-        byteSlice.order(byteOrder);
-        return delegate.decode(byteSlice);
-      }
-    };
-  }
-
-  /**
-   * Creates a {@link Decoder} for an {@code Array} type.
-   *
-   * @param elementDecoder a {@link Decoder} for the elements of the array.
-   * @param <U> the element type.
-   * @return a new {@link Decoder}.
-   */
-  public static <U> Decoder<List<U>> ofArray(Decoder<U> elementDecoder) {
-    return new ArrayDecoder<>(elementDecoder);
-  }
-
-  /**
-   * Creates a {@link Decoder} for a {@code Maybe} type.
-   *
-   * @param elementDecoder a {@link Decoder} for the contained element.
-   * @param <U> the element type.
-   * @return a new {@link Decoder}.
-   */
-  public static <U> Decoder<Optional<U>> ofMaybe(Decoder<U> elementDecoder) {
-    return new MaybeDecoder<>(elementDecoder);
-  }
-
-  /**
-   * Creates a {@link Decoder} for a {@code Structure} type, decoding into a {@link Record}.
-   *
-   * @param recordType the {@link Record} type that represents the components of the structure.
-   * @param componentDecoders a {@link Decoder} for each component of the structure.
-   * @param <U> the {@link Record} type that represents the components of the structure.
-   * @return a new {@link Decoder}.
-   */
-  public static <U extends Record> Decoder<U> ofStructure(
-      Class<U> recordType, Decoder<?>... componentDecoders) {
-    return new StructureDecoder<>(recordType, componentDecoders);
-  }
-
-  /**
-   * Creates a {@link Decoder} for a {@code Structure} type, decoding into a {@link List}.
-   *
-   * <p>Prefer {@link #ofStructure(Class, Decoder[])} if possible, which is both more type-safe and
-   * more convenient.
-   *
-   * @param componentDecoders a {@link Decoder} for each component of the structure.
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Object[]> ofStructure(Decoder<?>... componentDecoders) {
-    return new TupleDecoder(componentDecoders);
-  }
-
-  /**
-   * Creates a {@link Decoder} for the {@link Variant} type.
-   *
-   * <p>The contained {@link Object} can be of one of the following types:
-   *
-   * <ul>
-   *   <li>{@link Boolean}
-   *   <li>{@link Byte}
-   *   <li>{@link Short}
-   *   <li>{@link Integer}
-   *   <li>{@link Long}
-   *   <li>{@link String}
-   *   <li>{@link Optional} (a GVariant {@code Maybe} type)
-   *   <li>{@link List} (a GVariant array)
-   *   <li>{@code Object[]} (a GVariant structure)
-   *   <li>{@link Variant} (a nested variant)
-   * </ul>
-   *
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Variant> ofVariant() {
-    return new VariantDecoder();
-  }
-
-  /**
-   * Creates a {@link Decoder} for the {@code boolean} type.
-   *
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Boolean> ofBoolean() {
-    return new BooleanDecoder();
-  }
-
-  /**
-   * Creates a {@link Decoder} for the 8-bit {@code byte} type.
-   *
-   * <p><strong>Note:</strong> It is often useful to apply {@link #withByteOrder(ByteOrder)} to the
-   * result of this method.
-   *
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Byte> ofByte() {
-    return new ByteDecoder();
-  }
-
-  /**
-   * Creates a {@link Decoder} for the 16-bit {@code short} type.
-   *
-   * <p><strong>Note:</strong> It is often useful to apply {@link #withByteOrder(ByteOrder)} to the
-   * result of this method.
-   *
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Short> ofShort() {
-    return new ShortDecoder();
-  }
-
-  /**
-   * Creates a {@link Decoder} for the 32-bit {@code int} type.
-   *
-   * <p><strong>Note:</strong> It is often useful to apply {@link #withByteOrder(ByteOrder)} to the
-   * result of this method.
-   *
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Integer> ofInt() {
-    return new IntegerDecoder();
-  }
-
-  /**
-   * Creates a {@link Decoder} for the 64-bit {@code long} type.
-   *
-   * <p><strong>Note:</strong> It is often useful to apply {@link #withByteOrder(ByteOrder)} to the
-   * result of this method.
-   *
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Long> ofLong() {
-    return new LongDecoder();
-  }
-
-  /**
-   * Creates a {@link Decoder} for the {@code double} type.
-   *
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<Double> ofDouble() {
-    return new DoubleDecoder();
-  }
-
-  /**
-   * Creates a {@link Decoder} for the {@link String} type.
-   *
-   * <p><strong>Note:</strong> While GVariant does not prescribe any particular encoding, {@link
-   * java.nio.charset.StandardCharsets#UTF_8} is the most common choice.
-   *
-   * @param charset the {@link Charset} the string is encoded in.
-   * @return a new {@link Decoder}.
-   */
-  public static Decoder<String> ofString(Charset charset) {
-    return new StringDecoder(charset);
-  }
-
-  private static int align(int offset, byte alignment) {
-    return offset % alignment == 0 ? offset : offset + alignment - (offset % alignment);
-  }
-
-  private static int getIntN(ByteBuffer byteSlice) {
-    var intBytes = new byte[4];
-    byteSlice.get(intBytes, 0, Math.min(4, byteSlice.limit()));
-    return ByteBuffer.wrap(intBytes).order(LITTLE_ENDIAN).getInt();
-  }
-
-  @SuppressWarnings("java:S3358")
-  private static int byteCount(int n) {
-    return n < (1 << 8) ? 1 : n < (1 << 16) ? 2 : 4;
-  }
-
-  private static class ArrayDecoder<U> extends Decoder<List<U>> {
-
-    private final Decoder<U> elementDecoder;
-
-    ArrayDecoder(Decoder<U> elementDecoder) {
-      this.elementDecoder = elementDecoder;
-    }
-
-    @Override
-    public byte alignment() {
-      return elementDecoder.alignment();
-    }
-
-    @Override
-    @Nullable
-    Integer fixedSize() {
-      return null;
-    }
-
-    @Override
-    public List<U> decode(ByteBuffer byteSlice) {
-      List<U> elements;
-
-      var elementSize = elementDecoder.fixedSize();
-      if (elementSize != null) {
-        // A simple C-style array.
-        elements = new ArrayList<>(byteSlice.limit() / elementSize);
-        for (int i = 0; i < byteSlice.limit(); i += elementSize) {
-          var element = elementDecoder.decode(byteSlice.slice(i, elementSize));
-          elements.add(element);
-        }
-      } else {
-        // An array with aligned elements and a vector of framing offsets in the end.
-        int framingOffsetSize = byteCount(byteSlice.limit());
-        int lastFramingOffset =
-            getIntN(byteSlice.slice(byteSlice.limit() - framingOffsetSize, framingOffsetSize));
-        int elementCount = (byteSlice.limit() - lastFramingOffset) / framingOffsetSize;
-
-        elements = new ArrayList<>(elementCount);
-        int position = 0;
-        for (int i = 0; i < elementCount; i++) {
-          int framingOffset =
-              getIntN(
-                  byteSlice.slice(lastFramingOffset + i * framingOffsetSize, framingOffsetSize));
-          elements.add(elementDecoder.decode(byteSlice.slice(position, framingOffset - position)));
-          position = align(framingOffset, alignment());
-        }
-      }
-
-      return elements;
-    }
-  }
-
-  private static class MaybeDecoder<U> extends Decoder<Optional<U>> {
-
-    private final Decoder<U> elementDecoder;
-
-    MaybeDecoder(Decoder<U> elementDecoder) {
-      this.elementDecoder = elementDecoder;
-    }
-
-    @Override
-    public byte alignment() {
-      return elementDecoder.alignment();
-    }
-
-    @Override
-    @Nullable
-    Integer fixedSize() {
-      return null;
-    }
-
-    @Override
-    public Optional<U> decode(ByteBuffer byteSlice) {
-      if (!byteSlice.hasRemaining()) {
-        return Optional.empty();
-      } else {
-        if (!elementDecoder.hasFixedSize()) {
-          // Remove trailing zero byte.
-          byteSlice.limit(byteSlice.limit() - 1);
-        }
-
-        return Optional.of(elementDecoder.decode(byteSlice));
-      }
-    }
-  }
-
-  private static class StructureDecoder<U extends Record> extends Decoder<U> {
-
-    private final Class<U> recordType;
-    private final TupleDecoder tupleDecoder;
-
-    StructureDecoder(Class<U> recordType, Decoder<?>... componentDecoders) {
-      var recordComponents = recordType.getRecordComponents();
-      if (componentDecoders.length != recordComponents.length) {
-        throw new IllegalArgumentException(
-            "number of decoders (%d) does not match number of structure components (%d)"
-                .formatted(componentDecoders.length, recordComponents.length));
-      }
-
-      this.recordType = recordType;
-      this.tupleDecoder = new TupleDecoder(componentDecoders);
-    }
-
-    @Override
-    public byte alignment() {
-      return tupleDecoder.alignment();
-    }
-
-    @Override
-    public Integer fixedSize() {
-      return tupleDecoder.fixedSize();
-    }
-
-    @Override
-    public U decode(ByteBuffer byteSlice) {
-      Object[] recordConstructorArguments = tupleDecoder.decode(byteSlice);
-
-      try {
-        var recordComponentTypes =
-            Arrays.stream(recordType.getRecordComponents())
-                .map(RecordComponent::getType)
-                .toArray(Class<?>[]::new);
-        var recordConstructor = recordType.getDeclaredConstructor(recordComponentTypes);
-        return recordConstructor.newInstance(recordConstructorArguments);
-      } catch (NoSuchMethodException
-          | InstantiationException
-          | IllegalAccessException
-          | InvocationTargetException e) {
-        throw new IllegalStateException(e);
-      }
-    }
-  }
-
-  private static class TupleDecoder extends Decoder<Object[]> {
-
-    private final Decoder<?>[] componentDecoders;
-
-    TupleDecoder(Decoder<?>... componentDecoders) {
-      this.componentDecoders = componentDecoders;
-    }
-
-    @Override
-    public byte alignment() {
-      return (byte) Arrays.stream(componentDecoders).mapToInt(Decoder::alignment).max().orElse(1);
-    }
-
-    @Override
-    public Integer fixedSize() {
-      int position = 0;
-      for (var componentDecoder : componentDecoders) {
-        var fixedComponentSize = componentDecoder.fixedSize();
-        if (fixedComponentSize == null) {
-          return null;
-        }
-
-        position = align(position, componentDecoder.alignment());
-        position += fixedComponentSize;
-      }
-
-      if (position == 0) {
-        return 1;
-      }
-
-      return align(position, alignment());
-    }
-
-    @Override
-    public Object[] decode(ByteBuffer byteSlice) {
-      int framingOffsetSize = byteCount(byteSlice.limit());
-
-      var objects = new Object[componentDecoders.length];
-
-      int position = 0;
-      int framingOffsetIndex = 0;
-      int componentIndex = 0;
-      for (var componentDecoder : componentDecoders) {
-        position = align(position, componentDecoder.alignment());
-
-        var fixedComponentSize = componentDecoder.fixedSize();
-        if (fixedComponentSize != null) {
-          objects[componentIndex] =
-              componentDecoder.decode(byteSlice.slice(position, fixedComponentSize));
-          position += fixedComponentSize;
-        } else {
-          if (componentIndex == componentDecoders.length - 1) {
-            // The last component never has a framing offset.
-            int endPosition = byteSlice.limit() - framingOffsetIndex * framingOffsetSize;
-            objects[componentIndex] =
-                componentDecoder.decode(byteSlice.slice(position, endPosition - position));
-            position = endPosition;
-          } else {
-            int framingOffset =
-                getIntN(
-                    byteSlice.slice(
-                        byteSlice.limit() - (1 + framingOffsetIndex) * framingOffsetSize,
-                        framingOffsetSize));
-            objects[componentIndex] =
-                componentDecoder.decode(byteSlice.slice(position, framingOffset - position));
-            position = framingOffset;
-            ++framingOffsetIndex;
-          }
-        }
-
-        ++componentIndex;
-      }
-
-      return objects;
-    }
-  }
-
-  private static class VariantDecoder extends Decoder<Variant> {
-
-    @Override
-    public byte alignment() {
-      return 8;
-    }
-
-    @Override
-    @Nullable
-    Integer fixedSize() {
-      return null;
-    }
-
-    @Override
-    public Variant decode(ByteBuffer byteSlice) {
-      for (int i = byteSlice.limit() - 1; i >= 0; --i) {
-        if (byteSlice.get(i) != 0) {
-          continue;
-        }
-
-        var dataBytes = byteSlice.slice(0, i);
-        var signatureBytes = byteSlice.slice(i + 1, byteSlice.limit() - (i + 1));
-
-        Signature signature;
-        try {
-          signature = Signature.parse(signatureBytes);
-        } catch (ParseException e) {
-          throw new IllegalArgumentException(e);
-        }
-
-        return new Variant(signature, signature.decoder().decode(dataBytes));
-      }
-
-      throw new IllegalArgumentException("variant signature not found");
-    }
-  }
-
-  private static class BooleanDecoder extends Decoder<Boolean> {
-
-    @Override
-    public byte alignment() {
-      return 1;
-    }
-
-    @Override
-    public Integer fixedSize() {
-      return 1;
-    }
-
-    @Override
-    public Boolean decode(ByteBuffer byteSlice) {
-      return byteSlice.get() != 0;
-    }
-  }
-
-  private static class ByteDecoder extends Decoder<Byte> {
-
-    @Override
-    public byte alignment() {
-      return 1;
-    }
-
-    @Override
-    public Integer fixedSize() {
-      return 1;
-    }
-
-    @Override
-    public Byte decode(ByteBuffer byteSlice) {
-      return byteSlice.get();
-    }
-  }
-
-  private static class ShortDecoder extends Decoder<Short> {
-
-    @Override
-    public byte alignment() {
-      return 2;
-    }
-
-    @Override
-    public Integer fixedSize() {
-      return 2;
-    }
-
-    @Override
-    public Short decode(ByteBuffer byteSlice) {
-      return byteSlice.getShort();
-    }
-  }
-
-  private static class IntegerDecoder extends Decoder<Integer> {
-
-    @Override
-    public byte alignment() {
-      return 4;
-    }
-
-    @Override
-    public Integer fixedSize() {
-      return 4;
-    }
-
-    @Override
-    public Integer decode(ByteBuffer byteSlice) {
-      return byteSlice.getInt();
-    }
-  }
-
-  private static class LongDecoder extends Decoder<Long> {
-
-    @Override
-    public byte alignment() {
-      return 8;
-    }
-
-    @Override
-    public Integer fixedSize() {
-      return 8;
-    }
-
-    @Override
-    public Long decode(ByteBuffer byteSlice) {
-      return byteSlice.getLong();
-    }
-  }
-
-  private static class DoubleDecoder extends Decoder<Double> {
-
-    @Override
-    public byte alignment() {
-      return 8;
-    }
-
-    @Override
-    public Integer fixedSize() {
-      return 8;
-    }
-
-    @Override
-    public Double decode(ByteBuffer byteSlice) {
-      return byteSlice.getDouble();
-    }
-  }
-
-  private static class StringDecoder extends Decoder<String> {
-
-    private final Charset charset;
-
-    public StringDecoder(Charset charset) {
-      this.charset = charset;
-    }
-
-    @Override
-    public byte alignment() {
-      return 1;
-    }
-
-    @Override
-    @Nullable
-    Integer fixedSize() {
-      return null;
-    }
-
-    @Override
-    public String decode(ByteBuffer byteSlice) {
-      byteSlice.limit(byteSlice.limit() - 1);
-      return charset.decode(byteSlice).toString();
-    }
-  }
-}
diff --git a/src/main/java/eu/mulk/jgvariant/core/Signature.java b/src/main/java/eu/mulk/jgvariant/core/Signature.java
deleted file mode 100644
index d9de5f1..0000000
--- a/src/main/java/eu/mulk/jgvariant/core/Signature.java
+++ /dev/null
@@ -1,116 +0,0 @@
-package eu.mulk.jgvariant.core;
-
-import java.nio.ByteBuffer;
-import java.nio.charset.StandardCharsets;
-import java.text.ParseException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
-import org.apiguardian.api.API;
-import org.apiguardian.api.API.Status;
-
-/**
- * A GVariant signature string.
- *
- * <p>Describes a type in the GVariant type system. The type can be arbitrarily complex.
- *
- * <p><strong>Examples</strong>
- *
- * <dl>
- *   <dt>{@code "i"}
- *   <dd>a single 32-bit integer
- *   <dt>{@code "ai"}
- *   <dd>an array of 32-bit integers
- *   <dt>{@code "(bbb(sai))"}
- *   <dd>a record consisting of three booleans and a nested record, which consists of a string and
- *       an array of 32-bit integers
- * </dl>
- */
-@API(status = Status.STABLE)
-public final class Signature {
-
-  private final String signatureString;
-  private final Decoder<?> decoder;
-
-  Signature(ByteBuffer signatureBytes) throws ParseException {
-    this.decoder = parseSignature(signatureBytes);
-
-    signatureBytes.rewind();
-    this.signatureString = StandardCharsets.US_ASCII.decode(signatureBytes).toString();
-  }
-
-  static Signature parse(ByteBuffer signatureBytes) throws ParseException {
-    return new Signature(signatureBytes);
-  }
-
-  static Signature parse(String signatureString) throws ParseException {
-    var signatureBytes = ByteBuffer.wrap(signatureString.getBytes(StandardCharsets.US_ASCII));
-    return parse(signatureBytes);
-  }
-
-  /**
-   * Returns a {@link Decoder} that can decode values conforming to this signature.
-   *
-   * @return a {@link Decoder} for this signature
-   */
-  @SuppressWarnings("unchecked")
-  Decoder<Object> decoder() {
-    return (Decoder<Object>) decoder;
-  }
-
-  /**
-   * Returns the signature formatted as a GVariant signature string.
-   *
-   * @return a GVariant signature string.
-   */
-  @Override
-  public String toString() {
-    return signatureString;
-  }
-
-  @Override
-  public boolean equals(Object o) {
-    return (o instanceof Signature signature)
-        && Objects.equals(signatureString, signature.signatureString);
-  }
-
-  @Override
-  public int hashCode() {
-    return Objects.hash(signatureString);
-  }
-
-  private static Decoder<?> parseSignature(ByteBuffer signature) throws ParseException {
-    char c = (char) signature.get();
-    return switch (c) {
-      case 'b' -> Decoder.ofBoolean();
-      case 'y' -> Decoder.ofByte();
-      case 'n', 'q' -> Decoder.ofShort();
-      case 'i', 'u' -> Decoder.ofInt();
-      case 'x', 't' -> Decoder.ofLong();
-      case 'd' -> Decoder.ofDouble();
-      case 's', 'o', 'g' -> Decoder.ofString(StandardCharsets.UTF_8);
-      case 'v' -> Decoder.ofVariant();
-      case 'm' -> Decoder.ofMaybe(parseSignature(signature));
-      case 'a' -> Decoder.ofArray(parseSignature(signature));
-      case '(', '{' -> Decoder.ofStructure(parseTupleTypes(signature).toArray(new Decoder<?>[0]));
-      default -> throw new ParseException(
-          String.format("encountered unknown signature byte '%c'", c), signature.position());
-    };
-  }
-
-  private static List<Decoder<?>> parseTupleTypes(ByteBuffer signature) throws ParseException {
-    List<Decoder<?>> decoders = new ArrayList<>();
-
-    while (true) {
-      char c = (char) signature.get(signature.position());
-      if (c == ')' || c == '}') {
-        signature.get();
-        break;
-      }
-
-      decoders.add(parseSignature(signature));
-    }
-
-    return decoders;
-  }
-}
diff --git a/src/main/java/eu/mulk/jgvariant/core/Variant.java b/src/main/java/eu/mulk/jgvariant/core/Variant.java
deleted file mode 100644
index d1c1049..0000000
--- a/src/main/java/eu/mulk/jgvariant/core/Variant.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package eu.mulk.jgvariant.core;
-
-import org.apiguardian.api.API;
-import org.apiguardian.api.API.Status;
-
-/**
- * A dynamically typed GVariant value carrying a {@link Signature} describing its type.
- *
- * <p>{@link #value()} can be of one of the following types:
- *
- * <ul>
- *   <li>{@link Boolean}
- *   <li>{@link Byte}
- *   <li>{@link Short}
- *   <li>{@link Integer}
- *   <li>{@link Long}
- *   <li>{@link String}
- *   <li>{@link java.util.Optional} (a GVariant {@code Maybe} type)
- *   <li>{@link java.util.List} (a GVariant array)
- *   <li>{@code Object[]} (a GVariant structure)
- *   <li>{@link Variant} (a nested variant)
- * </ul>
- *
- * @param signature the signature describing the type of the value.
- * @param value the value itself; one of {@link Boolean}, {@link Byte}, {@link Short}, {@link
- *     Integer}, {@link Long}, {@link String}, {@link java.util.Optional}, {@link java.util.List},
- *     {@code Object[]}, {@link Variant}.
- */
-@API(status = Status.EXPERIMENTAL)
-public record Variant(Signature signature, Object value) {}
diff --git a/src/main/java/eu/mulk/jgvariant/core/package-info.java b/src/main/java/eu/mulk/jgvariant/core/package-info.java
deleted file mode 100644
index 1754096..0000000
--- a/src/main/java/eu/mulk/jgvariant/core/package-info.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/**
- * Provides {@link eu.mulk.jgvariant.core.Decoder}, the foundational class for <a
- * href="https://docs.gtk.org/glib/struct.Variant.html">GVariant</a> parsing.
- *
- * <p>Instances of {@link eu.mulk.jgvariant.core.Decoder} read a given value type from a {@link
- * java.nio.ByteBuffer}. The class also contains factory methods to create those instances.
- *
- * <p><strong>Example</strong>
- *
- * <p>To parse a GVariant of type {@code "a(si)"}, which is an array of pairs of {@link
- * java.lang.String} and {@code int}, you can use the following code:
- *
- * <pre>{@code
- * record ExampleRecord(String s, int i) {}
- *
- * var decoder =
- *   Decoder.ofArray(
- *     Decoder.ofStructure(
- *       ExampleRecord.class,
- *       Decoder.ofString(UTF_8),
- *       Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)));
- *
- * byte[] bytes = ...;
- * List<ExampleRecord> example = decoder.decode(ByteBuffer.wrap(bytes));
- * }</pre>
- */
-package eu.mulk.jgvariant.core;
diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
deleted file mode 100644
index 0282ff8..0000000
--- a/src/main/java/module-info.java
+++ /dev/null
@@ -1,63 +0,0 @@
-/**
- * Provides a parser for the <a href="https://docs.gtk.org/glib/struct.Variant.html">GVariant</a>
- * serialization format.
- *
- * <ul>
- *   <li><a href="#sect-overview">Overview</a>
- *   <li><a href="#sect-installation">Installation</a>
- * </ul>
- *
- * <h2 id="sect-overview">Overview</h2>
- *
- * <p>The {@link eu.mulk.jgvariant.core} package contains the {@link eu.mulk.jgvariant.core.Decoder}
- * type, which contains classes to parse and represent serialized <a
- * href="https://docs.gtk.org/glib/struct.Variant.html">GVariant</a> values.
- *
- * <h2 id="sect-installation">Installation</h2>
- *
- * <ul>
- *   <li><a href="#sect-installation-maven">Usage with Maven</a>
- *   <li><a href="#sect-installation-gradle">Usage with Gradle</a>
- * </ul>
- *
- * <h3 id="sect-installation-maven">Usage with Maven</h3>
- *
- * <pre>{@code
- * <project>
- *   ...
- *
- *   <dependencies>
- *     ...
- *
- *     <dependency>
- *       <groupId>eu.mulk.jgvariant</groupId>
- *       <artifactId>jgvariant-core</artifactId>
- *       <version>0.1.3</version>
- *     </dependency>
- *
- *     ...
- *   </dependencies>
- *
- *   ...
- * </project>
- * }</pre>
- *
- * <h3 id="sect-installation-gradle">Usage with Gradle</h3>
- *
- * <pre>{@code
- * dependencies {
- *   ...
- *
- *   implementation("eu.mulk.jgvariant:jgvariant-core:0.1.3")
- *
- *   ...
- * }
- * }</pre>
- */
-module eu.mulk.jgvariant.core {
-  requires com.google.errorprone.annotations;
-  requires org.jetbrains.annotations;
-  requires org.apiguardian.api;
-
-  exports eu.mulk.jgvariant.core;
-}
diff --git a/src/test/java/eu/mulk/jgvariant/core/DecoderTest.java b/src/test/java/eu/mulk/jgvariant/core/DecoderTest.java
deleted file mode 100644
index 5cf1a1c..0000000
--- a/src/test/java/eu/mulk/jgvariant/core/DecoderTest.java
+++ /dev/null
@@ -1,437 +0,0 @@
-package eu.mulk.jgvariant.core;
-
-import static java.nio.ByteOrder.BIG_ENDIAN;
-import static java.nio.ByteOrder.LITTLE_ENDIAN;
-import static java.nio.charset.StandardCharsets.UTF_8;
-import static org.junit.jupiter.api.Assertions.assertAll;
-import static org.junit.jupiter.api.Assertions.assertArrayEquals;
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertThrows;
-
-import java.nio.ByteBuffer;
-import java.text.ParseException;
-import java.util.List;
-import java.util.Optional;
-import org.junit.jupiter.api.Test;
-
-/**
- * Tests based on the examples given in <a
- * href="https://people.gnome.org/~desrt/gvariant-serialisation.pdf">~desrt/gvariant-serialisation.pdf</a>.
- */
-class DecoderTest {
-
-  @Test
-  void testString() {
-    var data = new byte[] {0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x20, 0x77, 0x6F, 0x72, 0x6C, 0x64, 0x00};
-    var decoder = Decoder.ofString(UTF_8);
-    assertEquals("hello world", decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testMaybe() {
-    var data =
-        new byte[] {0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x20, 0x77, 0x6F, 0x72, 0x6C, 0x64, 0x00, 0x00};
-    var decoder = Decoder.ofMaybe(Decoder.ofString(UTF_8));
-    assertEquals(Optional.of("hello world"), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testBooleanArray() {
-    var data = new byte[] {0x01, 0x00, 0x00, 0x01, 0x01};
-    var decoder = Decoder.ofArray(Decoder.ofBoolean());
-    assertEquals(List.of(true, false, false, true, true), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testStructure() {
-    var data =
-        new byte[] {
-          0x66, 0x6F, 0x6F, 0x00, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, 0x04
-        };
-
-    record TestRecord(String s, int i) {}
-
-    var decoder = Decoder.ofStructure(TestRecord.class, Decoder.ofString(UTF_8), Decoder.ofInt());
-    assertEquals(new TestRecord("foo", -1), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testComplexStructureArray() {
-    var data =
-        new byte[] {
-          0x68,
-          0x69,
-          0x00,
-          0x00,
-          (byte) 0xfe,
-          (byte) 0xff,
-          (byte) 0xff,
-          (byte) 0xff,
-          0x03,
-          0x00,
-          0x00,
-          0x00,
-          0x62,
-          0x79,
-          0x65,
-          0x00,
-          (byte) 0xff,
-          (byte) 0xff,
-          (byte) 0xff,
-          (byte) 0xff,
-          0x04,
-          0x09,
-          0x15
-        };
-
-    record TestRecord(String s, int i) {}
-
-    var decoder =
-        Decoder.ofArray(
-            Decoder.ofStructure(
-                TestRecord.class,
-                Decoder.ofString(UTF_8),
-                Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)));
-    assertEquals(
-        List.of(new TestRecord("hi", -2), new TestRecord("bye", -1)),
-        decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testStringArray() {
-    var data =
-        new byte[] {
-          0x69, 0x00, 0x63, 0x61, 0x6E, 0x00, 0x68, 0x61, 0x73, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E,
-          0x67, 0x73, 0x3F, 0x00, 0x02, 0x06, 0x0a, 0x13
-        };
-    var decoder = Decoder.ofArray(Decoder.ofString(UTF_8));
-    assertEquals(List.of("i", "can", "has", "strings?"), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testNestedStructure() {
-    var data =
-        new byte[] {
-          0x69, 0x63, 0x61, 0x6E, 0x00, 0x68, 0x61, 0x73, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67,
-          0x73, 0x3F, 0x00, 0x04, 0x0d, 0x05
-        };
-
-    record TestChild(byte b, String s) {}
-    record TestParent(TestChild tc, List<String> as) {}
-
-    var decoder =
-        Decoder.ofStructure(
-            TestParent.class,
-            Decoder.ofStructure(TestChild.class, Decoder.ofByte(), Decoder.ofString(UTF_8)),
-            Decoder.ofArray(Decoder.ofString(UTF_8)));
-
-    assertEquals(
-        new TestParent(new TestChild((byte) 0x69, "can"), List.of("has", "strings?")),
-        decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testNestedStructureVariant() {
-    var data =
-        new byte[] {
-          0x69, 0x63, 0x61, 0x6E, 0x00, 0x68, 0x61, 0x73, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67,
-          0x73, 0x3F, 0x00, 0x04, 0x0d, 0x05, 0x00, 0x28, 0x28, 0x79, 0x73, 0x29, 0x61, 0x73, 0x29
-        };
-
-    var decoder = Decoder.ofVariant();
-    var variant = decoder.decode(ByteBuffer.wrap(data));
-    var result = (Object[]) variant.value();
-
-    assertAll(
-        () -> assertEquals(Signature.parse("((ys)as)"), variant.signature()),
-        () -> assertEquals(2, result.length),
-        () -> assertArrayEquals(new Object[] {(byte) 0x69, "can"}, (Object[]) result[0]),
-        () -> assertEquals(List.of("has", "strings?"), result[1]));
-  }
-
-  @Test
-  void testSimpleStructure() {
-    var data = new byte[] {0x60, 0x70};
-
-    record TestRecord(byte b1, byte b2) {}
-
-    var decoder =
-        Decoder.ofStructure(
-            TestRecord.class,
-            Decoder.ofByte().withByteOrder(LITTLE_ENDIAN),
-            Decoder.ofByte().withByteOrder(LITTLE_ENDIAN));
-
-    assertEquals(new TestRecord((byte) 0x60, (byte) 0x70), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testPaddedStructureRight() {
-    var data = new byte[] {0x60, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00};
-
-    record TestRecord(int b1, byte b2) {}
-
-    var decoder =
-        Decoder.ofStructure(
-            TestRecord.class,
-            Decoder.ofInt().withByteOrder(LITTLE_ENDIAN),
-            Decoder.ofByte().withByteOrder(LITTLE_ENDIAN));
-
-    assertEquals(new TestRecord(0x60, (byte) 0x70), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testPaddedStructureLeft() {
-    var data = new byte[] {0x60, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00};
-
-    record TestRecord(byte b1, int b2) {}
-
-    var decoder =
-        Decoder.ofStructure(
-            TestRecord.class,
-            Decoder.ofByte().withByteOrder(LITTLE_ENDIAN),
-            Decoder.ofInt().withByteOrder(LITTLE_ENDIAN));
-
-    assertEquals(new TestRecord((byte) 0x60, 0x70), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testSimpleStructureArray() {
-    var data =
-        new byte[] {
-          0x60,
-          0x00,
-          0x00,
-          0x00,
-          0x70,
-          0x00,
-          0x00,
-          0x00,
-          (byte) 0x88,
-          0x02,
-          0x00,
-          0x00,
-          (byte) 0xF7,
-          0x00,
-          0x00,
-          0x00
-        };
-
-    record TestRecord(int b1, byte b2) {}
-
-    var decoder =
-        Decoder.ofArray(
-            Decoder.ofStructure(
-                TestRecord.class,
-                Decoder.ofInt().withByteOrder(LITTLE_ENDIAN),
-                Decoder.ofByte().withByteOrder(LITTLE_ENDIAN)));
-
-    assertEquals(
-        List.of(new TestRecord(96, (byte) 0x70), new TestRecord(648, (byte) 0xf7)),
-        decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testByteArray() {
-    var data = new byte[] {0x04, 0x05, 0x06, 0x07};
-
-    var decoder = Decoder.ofArray(Decoder.ofByte());
-
-    assertEquals(
-        List.of((byte) 0x04, (byte) 0x05, (byte) 0x06, (byte) 0x07),
-        decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testIntegerArray() {
-    var data = new byte[] {0x04, 0x00, 0x00, 0x00, 0x02, 0x01, 0x00, 0x00};
-
-    var decoder = Decoder.ofArray(Decoder.ofInt().withByteOrder(LITTLE_ENDIAN));
-
-    assertEquals(List.of(4, 258), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testDictionaryEntry() {
-    var data =
-        new byte[] {0x61, 0x20, 0x6B, 0x65, 0x79, 0x00, 0x00, 0x00, 0x02, 0x02, 0x00, 0x00, 0x06};
-
-    record TestEntry(String key, int value) {}
-
-    var decoder =
-        Decoder.ofStructure(
-            TestEntry.class, Decoder.ofString(UTF_8), Decoder.ofInt().withByteOrder(LITTLE_ENDIAN));
-    assertEquals(new TestEntry("a key", 514), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testPaddedPrimitives() {
-    var data =
-        new byte[] {
-          0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-          0x00, 0x40, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-        };
-
-    record TestRecord(short s, long l, double d) {}
-
-    var decoder =
-        Decoder.ofStructure(
-            TestRecord.class,
-            Decoder.ofShort().withByteOrder(BIG_ENDIAN),
-            Decoder.ofLong().withByteOrder(LITTLE_ENDIAN),
-            Decoder.ofDouble());
-    assertEquals(new TestRecord((short) 1, 2, 3.25), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testEmbeddedMaybe() {
-    var data = new byte[] {0x01, 0x01};
-
-    record TestRecord(Optional<Byte> set, Optional<Byte> unset) {}
-
-    var decoder =
-        Decoder.ofStructure(
-            TestRecord.class, Decoder.ofMaybe(Decoder.ofByte()), Decoder.ofMaybe(Decoder.ofByte()));
-    assertEquals(
-        new TestRecord(Optional.of((byte) 1), Optional.empty()),
-        decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testRecordComponentMismatch() {
-    record TestRecord(Optional<Byte> set) {}
-
-    var maybeDecoder = Decoder.ofMaybe(Decoder.ofByte());
-    assertThrows(
-        IllegalArgumentException.class,
-        () -> Decoder.ofStructure(TestRecord.class, maybeDecoder, maybeDecoder));
-  }
-
-  @Test
-  void testTrivialRecord() {
-    var data = new byte[] {0x00};
-
-    record TestRecord() {}
-
-    var decoder = Decoder.ofStructure(TestRecord.class);
-    assertEquals(new TestRecord(), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testTwoElementTrivialRecordArray() {
-    var data = new byte[] {0x00, 0x00};
-
-    record TestRecord() {}
-
-    var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class));
-    assertEquals(
-        List.of(new TestRecord(), new TestRecord()), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testSingletonTrivialRecordArray() {
-    var data = new byte[] {0x00};
-
-    record TestRecord() {}
-
-    var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class));
-    assertEquals(List.of(new TestRecord()), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testEmptyTrivialRecordArray() {
-    var data = new byte[] {};
-
-    record TestRecord() {}
-
-    var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class));
-    assertEquals(List.of(), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testVariantArray() {
-    var data = new byte[] {};
-
-    record TestRecord() {}
-
-    var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class));
-    assertEquals(List.of(), decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testInvalidVariantSignature() {
-    var data = new byte[] {0x00, 0x00, 0x2E};
-
-    var decoder = Decoder.ofVariant();
-    assertThrows(IllegalArgumentException.class, () -> decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testMissingVariantSignature() {
-    var data = new byte[] {0x01};
-
-    var decoder = Decoder.ofVariant();
-    assertThrows(IllegalArgumentException.class, () -> decoder.decode(ByteBuffer.wrap(data)));
-  }
-
-  @Test
-  void testSimpleVariantRecord() throws ParseException {
-    // signature: "(bynqiuxtdsogvmiai)"
-    var data =
-        new byte[] {
-          0x01, // b
-          0x02, // y
-          0x00, 0x03, // n
-          0x00, 0x04, // q
-          0x00, 0x00, // (padding)
-          0x00, 0x00, 0x00, 0x05, // i
-          0x00, 0x00, 0x00, 0x06, // u
-          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, // x
-          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, // t
-          0x40, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // d
-          0x68, 0x69, 0x00, // s
-          0x68, 0x69, 0x00, // o
-          0x68, 0x69, 0x00, // g
-          0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // (padding)
-          0x00, 0x00, 0x00, 0x09, 0x00, 0x69, // v
-          0x00, 0x00, // (padding)
-          0x00, 0x00, 0x00, 0x0a, // mi
-          0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x0c, // ai
-          68, 62, 49, 46, 43, // framing offsets
-          0x00, 0x28, 0x62, 0x79, 0x6E, 0x71, 0x69, 0x75, 0x78, 0x74, 0x64, 0x73, 0x6F, 0x67, 0x76,
-          0x6D, 0x69, 0x61, 0x69, 0x29
-        };
-
-    var decoder = Decoder.ofVariant();
-    assertArrayEquals(
-        new Object[] {
-          true,
-          (byte) 2,
-          (short) 3,
-          (short) 4,
-          (int) 5,
-          (int) 6,
-          (long) 7,
-          (long) 8,
-          (double) 3.25,
-          "hi",
-          "hi",
-          "hi",
-          new Variant(Signature.parse("i"), 9),
-          Optional.of(10),
-          List.of(11, 12)
-        },
-        (Object[]) decoder.decode(ByteBuffer.wrap(data)).value());
-  }
-
-  @Test
-  void testSignatureString() throws ParseException {
-    var data =
-        new byte[] {
-          0x28, 0x62, 0x79, 0x6E, 0x71, 0x69, 0x75, 0x78, 0x74, 0x64, 0x73, 0x6F, 0x67, 0x76, 0x6D,
-          0x69, 0x61, 0x69, 0x29
-        };
-
-    var signature = Signature.parse(ByteBuffer.wrap(data));
-    assertEquals("(bynqiuxtdsogvmiai)", signature.toString());
-  }
-}