Update to Mono.Cecil 0.9.5-95-g9f3c0f8.

This fixes a crash when opening a portable library project targeting .NET 4.5. (jbevain/cecil#101)

src/Libraries/Mono.Cecil/Mono.Cecil.PE/Image.cs

@@ -41,6 +41,7 @@ namespace Mono.Cecil.PE {
 		public ModuleKind Kind;
 		public TargetRuntime Runtime;
 		public TargetArchitecture Architecture;
+		public ModuleCharacteristics Characteristics;
 		public string FileName;
 
 		public Section [] Sections;

src/Libraries/Mono.Cecil/Mono.Cecil.PE/ImageReader.cs

@@ -99,13 +99,14 @@ namespace Mono.Cecil.PE {
 			// Characteristics		2
 			ushort characteristics = ReadUInt16 ();
 
-			ushort subsystem;
-			ReadOptionalHeaders (out subsystem);
+			ushort subsystem, dll_characteristics;
+			ReadOptionalHeaders (out subsystem, out dll_characteristics);
 			ReadSections (sections);
 			ReadCLIHeader ();
 			ReadMetadata ();
 
 			image.Kind = GetModuleKind (characteristics, subsystem);
+			image.Characteristics = (ModuleCharacteristics) dll_characteristics;
 		}
 
 		TargetArchitecture ReadArchitecture ()
@@ -136,7 +137,7 @@ namespace Mono.Cecil.PE {
 			return ModuleKind.Console;
 		}
 
-		void ReadOptionalHeaders (out ushort subsystem)
+		void ReadOptionalHeaders (out ushort subsystem, out ushort dll_characteristics)
 		{
 			// - PEOptionalHeader
 			//   - StandardFieldsHeader
@@ -176,6 +177,7 @@ namespace Mono.Cecil.PE {
 			subsystem = ReadUInt16 ();
 
 			// DLLFlags				2
+			dll_characteristics = ReadUInt16 ();
 			// StackReserveSize		4 || 8
 			// StackCommitSize		4 || 8
 			// HeapReserveSize		4 || 8
@@ -192,7 +194,7 @@ namespace Mono.Cecil.PE {
 			// CertificateTable		8
 			// BaseRelocationTable	8
 
-			Advance (pe64 ? 90 : 74);
+			Advance (pe64 ? 88 : 72);
 
 			// Debug				8
 			image.Debug = ReadDataDirectory ();

src/Libraries/Mono.Cecil/Mono.Cecil.PE/ImageWriter.cs

@@ -235,7 +235,7 @@ namespace Mono.Cecil.PE {
 			WriteByte (8);	// LMajor
 			WriteByte (0);	// LMinor
 			WriteUInt32 (text.SizeOfRawData);	// CodeSize
-			WriteUInt32 (reloc != null ? reloc.SizeOfRawData : 0
+			WriteUInt32 ((reloc != null ? reloc.SizeOfRawData : 0)
 				+ (rsrc != null ? rsrc.SizeOfRawData : 0));	// InitializedDataSize
 			WriteUInt32 (0);	// UninitializedDataSize
 
@@ -267,7 +267,7 @@ namespace Mono.Cecil.PE {
 
 			WriteUInt32 (0);	// Checksum
 			WriteUInt16 (GetSubSystem ());	// SubSystem
-			WriteUInt16 (0x8540);	// DLLFlags
+			WriteUInt16 ((ushort) module.Characteristics);	// DLLFlags
 
 			const ulong stack_reserve = 0x100000;
 			const ulong stack_commit = 0x1000;
@@ -754,17 +754,18 @@ namespace Mono.Cecil.PE {
 				return 0;
 
 			var public_key = module.Assembly.Name.PublicKey;
+			if (public_key.IsNullOrEmpty ())
+				return 0;
 
-			if (public_key != null) {
 			// in fx 2.0 the key may be from 384 to 16384 bits
 			// so we must calculate the signature size based on
 			// the size of the public key (minus the 32 byte header)
 			int size = public_key.Length;
 			if (size > 32)
 				return size - 32;
+
 			// note: size == 16 for the ECMA "key" which is replaced
 			// by the runtime with a 1024 bits key (128 bytes)
-			}
 
 			return 128; // default strongname signature size
 		}

src/Libraries/Mono.Cecil/Mono.Cecil/AssemblyNameReference.cs

@@ -98,7 +98,7 @@ namespace Mono.Cecil {
 		}
 
 		public byte [] PublicKey {
-			get { return public_key; }
+			get { return public_key ?? Empty<byte>.Array; }
 			set {
 				public_key = value;
 				HasPublicKey = !public_key.IsNullOrEmpty ();
@@ -116,7 +116,7 @@ namespace Mono.Cecil {
 					Array.Copy (hash, (hash.Length - 8), public_key_token, 0, 8);
 					Array.Reverse (public_key_token, 0, 8);
 				}
-				return public_key_token;
+				return public_key_token ?? Empty<byte>.Array;
 			}
 			set {
 				public_key_token = value;
@@ -175,9 +175,10 @@ namespace Mono.Cecil {
 				builder.Append (sep);
 				builder.Append ("PublicKeyToken=");
 
-				if (this.PublicKeyToken != null && public_key_token.Length > 0) {
-					for (int i = 0 ; i < public_key_token.Length ; i++) {
-						builder.Append (public_key_token [i].ToString ("x2"));
+				var pk_token = PublicKeyToken;
+				if (!pk_token.IsNullOrEmpty () && pk_token.Length > 0) {
+					for (int i = 0 ; i < pk_token.Length ; i++) {
+						builder.Append (pk_token [i].ToString ("x2"));
 					}
 				} else
 					builder.Append ("null");

src/Libraries/Mono.Cecil/Mono.Cecil/AssemblyReader.cs

@@ -778,8 +778,12 @@ namespace Mono.Cecil {
 
 			var nested_types = new MemberDefinitionCollection<TypeDefinition> (type, mapping.Length);
 
-			for (int i = 0; i < mapping.Length; i++)
-				nested_types.Add (GetTypeDefinition (mapping [i]));
+			for (int i = 0; i < mapping.Length; i++) {
+				var nested_type = GetTypeDefinition (mapping [i]);
+
+				if (nested_type != null)
+					nested_types.Add (nested_type);
+			}
 
 			metadata.RemoveNestedTypeMapping (type);
 

src/Libraries/Mono.Cecil/Mono.Cecil/FunctionPointerType.cs

@@ -85,6 +85,7 @@ namespace Mono.Cecil {
 
 		public override IMetadataScope Scope {
 			get { return function.ReturnType.Scope; }
+			set { throw new InvalidOperationException (); }
 		}
 
 		public override bool IsFunctionPointer {

src/Libraries/Mono.Cecil/Mono.Cecil/GenericParameter.cs

@@ -107,6 +107,7 @@ namespace Mono.Cecil {
 					? ((MethodReference) owner).DeclaringType.Scope
 					: ((TypeReference) owner).Scope;
 			}
+			set { throw new InvalidOperationException (); }
 		}
 
 		public override ModuleDefinition Module {

src/Libraries/Mono.Cecil/Mono.Cecil/MetadataSystem.cs

@@ -106,7 +106,7 @@ namespace Mono.Cecil {
 				return;
 
 			var scope = type.scope;
-			if (scope == null || scope.MetadataScopeType != MetadataScopeType.AssemblyNameReference || scope.Name != "mscorlib")
+			if (scope == null || scope.MetadataScopeType != MetadataScopeType.AssemblyNameReference)
 				return;
 
 			Row<ElementType, bool> primitive_data;
@@ -124,9 +124,6 @@ namespace Mono.Cecil {
 			if (type.Namespace != "System")
 				return false;
 
-			if (!type.HasImage || !type.Module.IsCorlib ())
-				return false;
-
 			Row<ElementType, bool> primitive_data;
 			if (TryGetPrimitiveData (type, out primitive_data) && primitive_data.Col1.IsPrimitive ()) {
 				etype = primitive_data.Col1;

src/Libraries/Mono.Cecil/Mono.Cecil/ModuleDefinition.cs

@@ -208,6 +208,7 @@ namespace Mono.Cecil {
 		TargetRuntime runtime;
 		TargetArchitecture architecture;
 		ModuleAttributes attributes;
+		ModuleCharacteristics characteristics;
 		Guid mvid;
 
 		internal AssemblyDefinition assembly;
@@ -247,6 +248,11 @@ namespace Mono.Cecil {
 			set { attributes = value; }
 		}
 
+		public ModuleCharacteristics Characteristics {
+			get { return characteristics; }
+			set { characteristics = value; }
+		}
+
 		public string FullyQualifiedName {
 			get { return fq_name; }
 		}
@@ -442,6 +448,7 @@ namespace Mono.Cecil {
 			this.runtime = image.Runtime;
 			this.architecture = image.Architecture;
 			this.attributes = image.Attributes;
+			this.characteristics = image.Characteristics;
 			this.fq_name = image.FileName;
 
 			this.reader = new MetadataReader (this);
@@ -866,6 +873,7 @@ namespace Mono.Cecil {
 				architecture = parameters.Architecture,
 				mvid = Guid.NewGuid (),
 				Attributes = ModuleAttributes.ILOnly,
+				Characteristics = (ModuleCharacteristics) 0x8540,
 			};
 
 			if (parameters.AssemblyResolver != null)

src/Libraries/Mono.Cecil/Mono.Cecil/ModuleKind.cs

@@ -51,4 +51,14 @@ namespace Mono.Cecil {
 		StrongNameSigned = 8,
 		Preferred32Bit = 0x00020000,
 	}
+
+	[Flags]
+	public enum ModuleCharacteristics {
+		HighEntropyVA = 0x0020,
+		DynamicBase = 0x0040,
+		NoSEH = 0x0400,
+		NXCompat = 0x0100,
+		AppContainer = 0x1000,
+		TerminalServerAware = 0x8000,
+	}
 }

src/Libraries/Mono.Cecil/Mono.Cecil/TypeParser.cs

@@ -272,7 +272,7 @@ namespace Mono.Cecil {
 
 		public static TypeReference ParseType (ModuleDefinition module, string fullname)
 		{
-			if (fullname == null)
+			if (string.IsNullOrEmpty (fullname))
 				return null;
 
 			var parser = new TypeParser (fullname);

src/Libraries/Mono.Cecil/Mono.Cecil/TypeReference.cs

@@ -147,6 +147,15 @@ namespace Mono.Cecil {
 
 				return scope;
 			}
+			set {
+				var declaring_type = this.DeclaringType;
+				if (declaring_type != null) {
+					declaring_type.Scope = value;
+					return;
+				}
+
+				scope = value;
+			}
 		}
 
 		public bool IsNested {

src/Libraries/Mono.Cecil/Mono.Cecil/TypeSpecification.cs

@@ -42,16 +42,17 @@ namespace Mono.Cecil {
 
 		public override string Name {
 			get { return element_type.Name; }
-			set { throw new NotSupportedException (); }
+			set { throw new InvalidOperationException (); }
 		}
 
 		public override string Namespace {
 			get { return element_type.Namespace; }
-			set { throw new NotSupportedException (); }
+			set { throw new InvalidOperationException (); }
 		}
 
 		public override IMetadataScope Scope {
 			get { return element_type.Scope; }
+			set { throw new InvalidOperationException (); }
 		}
 
 		public override ModuleDefinition Module {

src/Libraries/Mono.Cecil/Mono.Cecil/TypeSystem.cs

@@ -34,14 +34,23 @@ namespace Mono.Cecil {
 
 	public abstract class TypeSystem {
 
-		sealed class CorlibTypeSystem : TypeSystem {
+		sealed class CoreTypeSystem : TypeSystem {
 
-			public CorlibTypeSystem (ModuleDefinition module)
+			public CoreTypeSystem (ModuleDefinition module)
 				: base (module)
 			{
 			}
 
 			internal override TypeReference LookupType (string @namespace, string name)
+			{
+				var type = LookupTypeDefinition (@namespace, name) ?? LookupTypeForwarded (@namespace, name);
+				if (type != null)
+					return type;
+
+				throw new NotSupportedException ();
+			}
+
+			TypeReference LookupTypeDefinition (string @namespace, string name)
 			{
 				var metadata = module.MetadataSystem;
 				if (metadata.Types == null)
@@ -64,6 +73,22 @@ namespace Mono.Cecil {
 				});
 			}
 
+			TypeReference LookupTypeForwarded (string @namespace, string name)
+			{
+				if (!module.HasExportedTypes)
+					return null;
+
+				var exported_types = module.ExportedTypes;
+				for (int i = 0; i < exported_types.Count; i++) {
+					var exported_type = exported_types [i];
+
+					if (exported_type.Name == name && exported_type.Namespace == @namespace)
+						return exported_type.CreateReference ();
+				}
+
+				return null;
+			}
+
 			static void Initialize (object obj)
 			{
 			}
@@ -159,7 +184,7 @@ namespace Mono.Cecil {
 		internal static TypeSystem CreateTypeSystem (ModuleDefinition module)
 		{
 			if (module.IsCorlib ())
-				return new CorlibTypeSystem (module);
+				return new CoreTypeSystem (module);
 
 			return new CommonTypeSystem (module);
 		}