From fe915780add1d42f767dbf1e84399d220eabab20 Mon Sep 17 00:00:00 2001
From: Siegfried Pammer <siegfriedpammer@gmail.com>
Date: Thu, 24 Feb 2022 19:31:35 +0100
Subject: [PATCH] Add AssemblyVersion to IModule

---
 ICSharpCode.Decompiler/TypeSystem/IAssembly.cs              | 6 ++++++
 .../TypeSystem/Implementation/MinimalCorlib.cs              | 2 ++
 ICSharpCode.Decompiler/TypeSystem/MetadataModule.cs         | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/ICSharpCode.Decompiler/TypeSystem/IAssembly.cs b/ICSharpCode.Decompiler/TypeSystem/IAssembly.cs
index da8148f90..b14a5566d 100644
--- a/ICSharpCode.Decompiler/TypeSystem/IAssembly.cs
+++ b/ICSharpCode.Decompiler/TypeSystem/IAssembly.cs
@@ -18,6 +18,7 @@
 
 #nullable enable
 
+using System;
 using System.Collections.Generic;
 
 using ICSharpCode.Decompiler.Metadata;
@@ -65,6 +66,11 @@ namespace ICSharpCode.Decompiler.TypeSystem
 		/// </summary>
 		string AssemblyName { get; }
 
+		/// <summary>
+		/// Gets the assembly version.
+		/// </summary>
+		Version AssemblyVersion { get; }
+
 		/// <summary>
 		/// Gets the full assembly name (including public key token etc.)
 		/// </summary>
diff --git a/ICSharpCode.Decompiler/TypeSystem/Implementation/MinimalCorlib.cs b/ICSharpCode.Decompiler/TypeSystem/Implementation/MinimalCorlib.cs
index 6db846f4d..04991c76c 100644
--- a/ICSharpCode.Decompiler/TypeSystem/Implementation/MinimalCorlib.cs
+++ b/ICSharpCode.Decompiler/TypeSystem/Implementation/MinimalCorlib.cs
@@ -45,6 +45,7 @@ namespace ICSharpCode.Decompiler.TypeSystem.Implementation
 		public ICompilation Compilation { get; }
 		CorlibTypeDefinition[] typeDefinitions;
 		readonly CorlibNamespace rootNamespace;
+		readonly Version asmVersion = new Version(0, 0, 0, 0);
 
 		private MinimalCorlib(ICompilation compilation, IEnumerable<KnownTypeReference> types)
 		{
@@ -56,6 +57,7 @@ namespace ICSharpCode.Decompiler.TypeSystem.Implementation
 		bool IModule.IsMainModule => Compilation.MainModule == this;
 
 		string IModule.AssemblyName => "corlib";
+		Version IModule.AssemblyVersion => asmVersion;
 		string IModule.FullAssemblyName => "corlib";
 		string ISymbol.Name => "corlib";
 		SymbolKind ISymbol.SymbolKind => SymbolKind.Module;
diff --git a/ICSharpCode.Decompiler/TypeSystem/MetadataModule.cs b/ICSharpCode.Decompiler/TypeSystem/MetadataModule.cs
index f4f4b7396..622c510a2 100644
--- a/ICSharpCode.Decompiler/TypeSystem/MetadataModule.cs
+++ b/ICSharpCode.Decompiler/TypeSystem/MetadataModule.cs
@@ -66,6 +66,7 @@ namespace ICSharpCode.Decompiler.TypeSystem
 				try
 				{
 					this.AssemblyName = metadata.GetString(asmdef.Name);
+					this.AssemblyVersion = asmdef.Version;
 					this.FullAssemblyName = metadata.GetFullAssemblyName();
 				}
 				catch (BadImageFormatException)
@@ -117,6 +118,7 @@ namespace ICSharpCode.Decompiler.TypeSystem
 		public bool IsMainModule => this == Compilation.MainModule;
 
 		public string AssemblyName { get; }
+		public Version AssemblyVersion { get; }
 		public string FullAssemblyName { get; }
 		string ISymbol.Name => AssemblyName;
 		SymbolKind ISymbol.SymbolKind => SymbolKind.Module;