mirror of
https://github.com/AssetRipper/ILSpy.git
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236 lines
8.0 KiB
C#
236 lines
8.0 KiB
C#
// Copyright (c) 2018 Siegfried Pammer
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Reflection.Metadata;
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using System.Text.RegularExpressions;
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using ICSharpCode.Decompiler.TypeSystem;
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namespace ICSharpCode.Decompiler.Metadata
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{
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public static class DotNetCorePathFinderExtensions
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{
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static readonly string PathPattern =
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@"(Reference Assemblies[/\\]Microsoft[/\\]Framework[/\\](?<type>.NETFramework)[/\\]v(?<version>[^/\\]+)[/\\])" +
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@"|((?<type>Microsoft\.NET)[/\\]assembly[/\\]GAC_(MSIL|32|64)[/\\])" +
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@"|((?<type>Microsoft\.NET)[/\\]Framework(64)?[/\\](?<version>[^/\\]+)[/\\])" +
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@"|(NuGetFallbackFolder[/\\](?<type>[^/\\]+)\\(?<version>[^/\\]+)([/\\].*)?[/\\]ref[/\\])" +
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@"|(shared[/\\](?<type>[^/\\]+)\\(?<version>[^/\\]+)([/\\].*)?[/\\])" +
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@"|(packs[/\\](?<type>[^/\\]+)\\(?<version>[^/\\]+)\\ref([/\\].*)?[/\\])";
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static readonly string RefPathPattern =
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@"(Reference Assemblies[/\\]Microsoft[/\\]Framework[/\\](?<type>.NETFramework)[/\\]v(?<version>[^/\\]+)[/\\])" +
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@"|(NuGetFallbackFolder[/\\](?<type>[^/\\]+)\\(?<version>[^/\\]+)([/\\].*)?[/\\]ref[/\\])" +
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@"|(packs[/\\](?<type>[^/\\]+)\\(?<version>[^/\\]+)\\ref([/\\].*)?[/\\])";
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public static string DetectTargetFrameworkId(this MetadataFile assembly)
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{
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return DetectTargetFrameworkId(assembly.Metadata, assembly.FileName);
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}
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public static string DetectTargetFrameworkId(this MetadataReader metadata, string assemblyPath = null)
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{
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if (metadata == null)
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throw new ArgumentNullException(nameof(metadata));
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const string TargetFrameworkAttributeName = "System.Runtime.Versioning.TargetFrameworkAttribute";
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foreach (var h in metadata.GetCustomAttributes(Handle.AssemblyDefinition))
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{
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try
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{
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var attribute = metadata.GetCustomAttribute(h);
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if (attribute.GetAttributeType(metadata).GetFullTypeName(metadata).ToString() != TargetFrameworkAttributeName)
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continue;
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var blobReader = metadata.GetBlobReader(attribute.Value);
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if (blobReader.ReadUInt16() == 0x0001)
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{
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return blobReader.ReadSerializedString()?.Replace(" ", "");
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}
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}
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catch (BadImageFormatException)
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{
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// ignore malformed attributes
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}
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}
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if (metadata.IsAssembly)
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{
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AssemblyDefinition assemblyDefinition = metadata.GetAssemblyDefinition();
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switch (metadata.GetString(assemblyDefinition.Name))
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{
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case "mscorlib":
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return $".NETFramework,Version=v{assemblyDefinition.Version.ToString(2)}";
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case "netstandard":
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return $".NETStandard,Version=v{assemblyDefinition.Version.ToString(2)}";
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}
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}
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foreach (var h in metadata.AssemblyReferences)
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{
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try
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{
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var r = metadata.GetAssemblyReference(h);
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if (r.PublicKeyOrToken.IsNil)
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continue;
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string version;
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switch (metadata.GetString(r.Name))
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{
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case "netstandard":
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version = r.Version.ToString(2);
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return $".NETStandard,Version=v{version}";
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case "System.Runtime":
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// System.Runtime.dll uses the following scheme:
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// 4.2.0 => .NET Core 2.0
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// 4.2.1 => .NET Core 2.1 / 3.0
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// 4.2.2 => .NET Core 3.1
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if (r.Version >= new Version(4, 2, 0))
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{
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version = "2.0";
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if (r.Version >= new Version(4, 2, 1))
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{
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version = "3.0";
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}
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if (r.Version >= new Version(4, 2, 2))
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{
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version = "3.1";
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}
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return $".NETCoreApp,Version=v{version}";
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}
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else
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{
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continue;
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}
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case "mscorlib":
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version = r.Version.ToString(2);
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return $".NETFramework,Version=v{version}";
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}
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}
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catch (BadImageFormatException)
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{
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// ignore malformed references
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}
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}
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// Optionally try to detect target version through assembly path as a fallback (use case: reference assemblies)
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if (assemblyPath != null)
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{
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/*
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* Detected path patterns (examples):
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*
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* - .NETFramework -> C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6.1\mscorlib.dll
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* - .NETCore -> C:\Program Files\dotnet\sdk\NuGetFallbackFolder\microsoft.netcore.app\2.1.0\ref\netcoreapp2.1\System.Console.dll
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* - .NETStandard -> C:\Program Files\dotnet\sdk\NuGetFallbackFolder\netstandard.library\2.0.3\build\netstandard2.0\ref\netstandard.dll
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*/
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var pathMatch = Regex.Match(assemblyPath, PathPattern,
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RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.ExplicitCapture);
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string version;
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if (pathMatch.Success)
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{
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var type = pathMatch.Groups["type"].Value;
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version = pathMatch.Groups["version"].Value;
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if (string.IsNullOrEmpty(version))
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version = metadata.MetadataVersion;
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if (string.IsNullOrEmpty(version))
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version = "4.0";
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version = version.TrimStart('v');
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if (type == "Microsoft.NET" || type == ".NETFramework")
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{
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return $".NETFramework,Version=v{version.Substring(0, Math.Min(3, version.Length))}";
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}
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else if (type.IndexOf("netcore", StringComparison.OrdinalIgnoreCase) >= 0)
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{
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return $".NETCoreApp,Version=v{version}";
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}
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else if (type.IndexOf("netstandard", StringComparison.OrdinalIgnoreCase) >= 0)
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{
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return $".NETStandard,Version=v{version}";
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}
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}
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else
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{
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version = metadata.MetadataVersion;
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if (string.IsNullOrEmpty(version))
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version = "4.0";
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version = version.TrimStart('v');
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return $".NETFramework,Version=v{version.Substring(0, Math.Min(3, version.Length))}";
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}
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}
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return string.Empty;
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}
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public static bool IsReferenceAssembly(this MetadataFile assembly)
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{
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return IsReferenceAssembly(assembly.Metadata, assembly.FileName);
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}
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public static bool IsReferenceAssembly(this MetadataReader metadata, string assemblyPath)
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{
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if (metadata == null)
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throw new ArgumentNullException(nameof(metadata));
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if (metadata.GetCustomAttributes(Handle.AssemblyDefinition).HasKnownAttribute(metadata, KnownAttribute.ReferenceAssembly))
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return true;
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// Try to detect reference assembly through specific path pattern
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var refPathMatch = Regex.Match(assemblyPath, RefPathPattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
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return refPathMatch.Success;
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}
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public static string DetectRuntimePack(this MetadataFile assembly)
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{
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if (assembly is null)
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{
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throw new ArgumentNullException(nameof(assembly));
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}
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var metadata = assembly.Metadata;
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foreach (var r in metadata.AssemblyReferences)
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{
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var reference = metadata.GetAssemblyReference(r);
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if (reference.PublicKeyOrToken.IsNil)
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continue;
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if (metadata.StringComparer.Equals(reference.Name, "WindowsBase"))
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{
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return "Microsoft.WindowsDesktop.App";
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}
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if (metadata.StringComparer.Equals(reference.Name, "PresentationFramework"))
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{
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return "Microsoft.WindowsDesktop.App";
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}
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if (metadata.StringComparer.Equals(reference.Name, "PresentationCore"))
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{
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return "Microsoft.WindowsDesktop.App";
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}
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// TODO add support for ASP.NET Core
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}
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return "Microsoft.NETCore.App";
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}
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}
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}
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