70 lines
2.0 KiB
C#
70 lines
2.0 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using dnSpy.BamlDecompiler.Baml;
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namespace dnSpy.BamlDecompiler {
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internal interface IHandler {
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BamlRecordType Type { get; }
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BamlElement Translate(XamlContext ctx, BamlNode node, BamlElement parent);
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}
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internal interface IDeferHandler {
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BamlElement TranslateDefer(XamlContext ctx, BamlNode node, BamlElement parent);
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}
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internal static class HandlerMap {
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static readonly Dictionary<BamlRecordType, IHandler> handlers;
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static HandlerMap() {
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handlers = new Dictionary<BamlRecordType, IHandler>();
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foreach (var type in typeof(IHandler).Assembly.GetTypes()) {
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if (typeof(IHandler).IsAssignableFrom(type) &&
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!type.IsInterface && !type.IsAbstract) {
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var handler = (IHandler)Activator.CreateInstance(type);
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handlers.Add(handler.Type, handler);
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}
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}
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}
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public static IHandler LookupHandler(BamlRecordType type) {
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#if DEBUG
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switch (type) {
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case BamlRecordType.AssemblyInfo:
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case BamlRecordType.TypeInfo:
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case BamlRecordType.AttributeInfo:
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case BamlRecordType.StringInfo:
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break;
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default:
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if (!handlers.ContainsKey(type))
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throw new NotSupportedException(type.ToString());
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break;
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}
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#endif
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return handlers.ContainsKey(type) ? handlers[type] : null;
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}
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public static void ProcessChildren(XamlContext ctx, BamlBlockNode node, BamlElement nodeElem) {
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ctx.XmlNs.PushScope(nodeElem);
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if (nodeElem.Xaml.Element is not null)
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nodeElem.Xaml.Element.AddAnnotation(ctx.XmlNs.CurrentScope);
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foreach (var child in node.Children) {
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var handler = LookupHandler(child.Type);
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if (handler is null) {
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Debug.WriteLine("BAML Handler {0} not implemented.", child.Type);
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continue;
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}
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var elem = handler.Translate(ctx, (BamlNode)child, nodeElem);
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if (elem is not null) {
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nodeElem.Children.Add(elem);
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elem.Parent = nodeElem;
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}
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ctx.CancellationToken.ThrowIfCancellationRequested();
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}
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ctx.XmlNs.PopScope();
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}
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}
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}
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