internal static AnnotationNode Parse(Stream stream, ClassReaderState readerState)
{
var annotation = new AnnotationNode
{
Type = TypeDescriptor.Parse(readerState.ConstantPool
.GetEntry <Utf8Entry>(Binary.BigEndian.ReadUInt16(stream)).String)
};
var elementValuePairsCount = Binary.BigEndian.ReadUInt16(stream);
annotation.ElementValuePairs.Capacity = elementValuePairsCount;
for (var i = 0; i < elementValuePairsCount; i++)
{
annotation.ElementValuePairs.Add(new ElementValuePair
{
ElementName = readerState.ConstantPool
.GetEntry <Utf8Entry>(Binary.BigEndian.ReadUInt16(stream)).String,
Value = ElementValue.Parse(stream, readerState)
});
}
return(annotation);
}
internal static ElementValue Parse(Stream stream, ClassReaderState readerState)
{
var elementValue = new ElementValue
{
Tag = (ElementValueTag)stream.ReadByteFully()
};
switch (elementValue.Tag)
{
case ElementValueTag.Byte:
case ElementValueTag.Character:
case ElementValueTag.Integer:
case ElementValueTag.Short:
case ElementValueTag.Boolean:
elementValue.ConstValue = readerState.ConstantPool.GetEntry <IntegerEntry>(Binary.BigEndian.ReadUInt16(stream)).Value;
break;
case ElementValueTag.Double:
elementValue.ConstValue = readerState.ConstantPool.GetEntry <DoubleEntry>(Binary.BigEndian.ReadUInt16(stream)).Value;
break;
case ElementValueTag.Float:
elementValue.ConstValue = readerState.ConstantPool.GetEntry <FloatEntry>(Binary.BigEndian.ReadUInt16(stream)).Value;
break;
case ElementValueTag.Long:
elementValue.ConstValue = readerState.ConstantPool.GetEntry <LongEntry>(Binary.BigEndian.ReadUInt16(stream)).Value;
break;
case ElementValueTag.String:
elementValue.ConstValue = readerState.ConstantPool.GetEntry <Utf8Entry>(Binary.BigEndian.ReadUInt16(stream)).String;
break;
case ElementValueTag.Enum:
elementValue.EnumConstValue = new EnumConstValueType
{
TypeName = TypeDescriptor.Parse(readerState.ConstantPool
.GetEntry <Utf8Entry>(Binary.BigEndian.ReadUInt16(stream)).String),
ConstName = readerState.ConstantPool.GetEntry <Utf8Entry>(Binary.BigEndian.ReadUInt16(stream))
.String
};
break;
case ElementValueTag.Class:
elementValue.Class = TypeDescriptor.Parse(readerState.ConstantPool
.GetEntry <Utf8Entry>(Binary.BigEndian.ReadUInt16(stream)).String, true);
break;
case ElementValueTag.Annotation:
elementValue.AnnotationNode = AnnotationNode.Parse(stream, readerState);
break;
case ElementValueTag.Array:
var arraySize = Binary.BigEndian.ReadUInt16(stream);
elementValue.ArrayValue = new List <ElementValue>(arraySize);
for (var i = 0; i < arraySize; i++)
{
elementValue.ArrayValue.Add(Parse(stream, readerState));
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(elementValue.Tag));
}
return(elementValue);
}
internal void Write(Stream stream, ClassWriterState writerState)
{
stream.WriteByte((byte)Tag);
switch (Tag)
{
case ElementValueTag.Byte:
case ElementValueTag.Character:
case ElementValueTag.Integer:
case ElementValueTag.Short:
case ElementValueTag.Boolean:
Binary.BigEndian.Write(stream, writerState.ConstantPool.Find(new IntegerEntry((int)ConstValue)));
break;
case ElementValueTag.Double:
Binary.BigEndian.Write(stream, writerState.ConstantPool.Find(new DoubleEntry((double)ConstValue)));
break;
case ElementValueTag.Float:
Binary.BigEndian.Write(stream, writerState.ConstantPool.Find(new FloatEntry((float)ConstValue)));
break;
case ElementValueTag.Long:
Binary.BigEndian.Write(stream, writerState.ConstantPool.Find(new LongEntry((long)ConstValue)));
break;
case ElementValueTag.String:
Binary.BigEndian.Write(stream, writerState.ConstantPool.Find(new Utf8Entry((string)ConstValue)));
break;
case ElementValueTag.Enum:
Binary.BigEndian.Write(stream,
writerState.ConstantPool.Find(new Utf8Entry(EnumConstValue.TypeName.ToString())));
Binary.BigEndian.Write(stream,
writerState.ConstantPool.Find(new Utf8Entry(EnumConstValue.ConstName)));
break;
case ElementValueTag.Class:
Binary.BigEndian.Write(stream,
writerState.ConstantPool.Find(new Utf8Entry(Class.ToString())));
break;
case ElementValueTag.Annotation:
AnnotationNode.Write(stream, writerState);
break;
case ElementValueTag.Array:
if (ArrayValue.Count > ushort.MaxValue)
{
throw new ArgumentOutOfRangeException(nameof(ArrayValue.Count), $"Array size is too big: {ArrayValue.Count} > {ushort.MaxValue}");
}
Binary.BigEndian.Write(stream, (ushort)ArrayValue.Count);
foreach (var element in ArrayValue)
{
element.Write(stream, writerState);
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(Tag));
}
}
