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[XA.Tools.Bytecode] Add Kotlin parsing and honor Kotlin class visibility.
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‎ThirdPartyNotices.txt

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java.interop uses third-party libraries or other resources that may be
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distributed under licenses different than the java.interop software.
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In the event that we accidentally failed to list a required notice, please
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bring it to our attention. Post an issue or email us:
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[email protected]
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The attached notices are provided for information only.
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1. JetBrains/kotlin (https://github.com/JetBrains/kotlin/)
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%% JetBrains/kotlin NOTICES AND INFORMATION BEGIN HERE
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======================================================
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Apache License
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Copyright 2000-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
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END OF JetBrains/kotlin NOTICES AND INFORMATION

‎src/Xamarin.Android.Tools.Bytecode/Annotation.cs

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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace Xamarin.Android.Tools.Bytecode
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{
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public sealed class Annotation
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{
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public ConstantPool ConstantPool { get; }
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ushort typeIndex;
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public string Type => ((ConstantPoolUtf8Item) ConstantPool [typeIndex]).Value;
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public IList<KeyValuePair<string, AnnotationElementValue>>
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Values { get; } = new List<KeyValuePair<string, AnnotationElementValue>> ();
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public Annotation (ConstantPool constantPool, Stream stream)
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{
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ConstantPool = constantPool;
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typeIndex = stream.ReadNetworkUInt16 ();
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var count = stream.ReadNetworkUInt16 ();
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for (int i = 0; i < count; ++i) {
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var elementNameIndex = stream.ReadNetworkUInt16 ();
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var elementName = ((ConstantPoolUtf8Item) ConstantPool [elementNameIndex]).Value;
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var elementValue = AnnotationElementValue.Create (constantPool, stream);
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Values.Add (new KeyValuePair<string, AnnotationElementValue> (elementName, elementValue));
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}
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}
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public override string ToString ()
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{
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var values = new StringBuilder ("{");
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if (Values.Count > 0) {
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Append (Values [0]);
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}
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for (int i = 1; i < Values.Count; ++i) {
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values.Append (", ");
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Append (Values [i]);
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}
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values.Append ("}");
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return $"Annotation('{Type}', {values})";
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void Append (KeyValuePair<string, AnnotationElementValue> value)
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{
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values.Append (value.Key).Append (": ");
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values.Append (value.Value);
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}
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}
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}
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}

‎src/Xamarin.Android.Tools.Bytecode/AnnotationElementValue.cs

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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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namespace Xamarin.Android.Tools.Bytecode
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{
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// https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.7.16.1
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public abstract class AnnotationElementValue
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{
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public static AnnotationElementValue Create (ConstantPool constantPool, Stream stream)
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{
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var tag = stream.ReadNetworkByte ();
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switch (tag) {
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case (byte) 'e': {
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var typeNameIndex = stream.ReadNetworkUInt16 ();
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var constNameIndex = stream.ReadNetworkUInt16 ();
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var typeName = ((ConstantPoolUtf8Item) constantPool [typeNameIndex]).Value;
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var constName = ((ConstantPoolUtf8Item) constantPool [constNameIndex]).Value;
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return new AnnotationElementEnum { TypeName = typeName, ConstantName = constName };
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}
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case (byte) 'c': {
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var classInfoIndex = stream.ReadNetworkUInt16 ();
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return new AnnotationElementClassInfo { ClassInfo = ((ConstantPoolUtf8Item) constantPool [classInfoIndex]).Value };
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}
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case (byte) '@': {
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return new AnnotationElementAnnotation { Annotation = new Annotation (constantPool, stream) };
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}
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case (byte) '[': {
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var numValues = stream.ReadNetworkUInt16 ();
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var values = new List<AnnotationElementValue> ();
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for (var i = 0; i < numValues; i++)
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values.Add (Create (constantPool, stream));
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return new AnnotationElementArray { Values = values.ToArray () };
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}
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case (byte) 'B':
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case (byte) 'C':
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case (byte) 'D':
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case (byte) 'F':
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case (byte) 'I':
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case (byte) 'J':
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case (byte) 'S':
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case (byte) 's':
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case (byte) 'Z': {
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var constValueIndex = stream.ReadNetworkUInt16 ();
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var poolItem = constantPool [constValueIndex];
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return new AnnotationElementConstant { Value = poolItem is ConstantPoolUtf8Item utf ? utf.Value : poolItem.ToString () };
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}
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}
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return null;
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}
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}
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public class AnnotationElementEnum : AnnotationElementValue
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{
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public string TypeName { get; set; }
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public string ConstantName { get; set; }
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public override string ToString () => $"Enum({TypeName}.{ConstantName})";
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}
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public class AnnotationElementClassInfo : AnnotationElementValue
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{
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public string ClassInfo { get; set; }
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public override string ToString () => ClassInfo;
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}
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public class AnnotationElementAnnotation : AnnotationElementValue
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{
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public Annotation Annotation { get; set; }
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public override string ToString () => Annotation.ToString ();
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}
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public class AnnotationElementArray : AnnotationElementValue
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{
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public AnnotationElementValue[] Values { get; set; }
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public override string ToString () => $"[{string.Join (", ", Values.Select (v => v.ToString ()))}]";
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}
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public class AnnotationElementConstant : AnnotationElementValue
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{
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public string Value { get; set; }
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public override string ToString () => Value;
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}
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}

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