New IKVM.Reflection implementation.

1 files changed, 557 insertions, 0 deletions

diff --git a/reflect/GenericWrappers.cs b/reflect/GenericWrappers.cs
new file mode 100644
index 00000000..f8de11e3
--- /dev/null
+++ b/reflect/GenericWrappers.cs
@@ -0,0 +1,557 @@
+/*
+  Copyright (C) 2009 Jeroen Frijters
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jeroen Frijters
+  jeroen@frijters.net
+  
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace IKVM.Reflection
+{
+	// this represents both generic method instantiations and non-generic methods on generic type instantations
+	// (this means that it can be a generic method declaration as well as a generic method instance)
+	sealed class GenericMethodInstance : MethodInfo
+	{
+		private readonly Type declaringType;
+		private readonly MethodInfo method;
+		private readonly Type[] methodArgs;
+		private readonly MethodSignature signature;
+
+		internal GenericMethodInstance(Type declaringType, MethodInfo method, Type[] methodArgs)
+		{
+			this.declaringType = declaringType;
+			this.method = method;
+			this.methodArgs = methodArgs;
+			this.signature = method.MethodSignature.Bind(declaringType, methodArgs);
+		}
+
+		public override bool Equals(object obj)
+		{
+			GenericMethodInstance other = obj as GenericMethodInstance;
+			return other != null
+				&& other.method.Equals(method)
+				&& other.declaringType.Equals(declaringType)
+				&& Util.ArrayEquals(other.methodArgs, methodArgs);
+		}
+
+		public override int GetHashCode()
+		{
+			return declaringType.GetHashCode() * 33 ^ method.GetHashCode() ^ Util.GetHashCode(methodArgs);
+		}
+
+		public override Type ReturnType
+		{
+			get { return method.ReturnType.BindTypeParameters(this); }
+		}
+
+		public override ParameterInfo ReturnParameter
+		{
+			get { return new GenericParameterInfoImpl(this, this, method.ReturnParameter); }
+		}
+
+		public override ParameterInfo[] GetParameters()
+		{
+			ParameterInfo[] parameters = method.GetParameters();
+			WrapGenericParameterInfos(this, this, parameters);
+			return parameters;
+		}
+
+		internal override int ParameterCount
+		{
+			get { return method.ParameterCount; }
+		}
+
+		public override CallingConventions CallingConvention
+		{
+			get { return method.CallingConvention; }
+		}
+
+		public override MethodAttributes Attributes
+		{
+			get { return method.Attributes; }
+		}
+
+		public override MethodImplAttributes GetMethodImplementationFlags()
+		{
+			return method.GetMethodImplementationFlags();
+		}
+
+		public override string Name
+		{
+			get { return method.Name; }
+		}
+
+		public override Type DeclaringType
+		{
+			get { return declaringType; }
+		}
+
+		public override Module Module
+		{
+			get { return method.Module; }
+		}
+
+		public override int MetadataToken
+		{
+			get { return method.MetadataToken; }
+		}
+
+		public override MethodBody GetMethodBody()
+		{
+			IKVM.Reflection.Reader.MethodDefImpl md = method as IKVM.Reflection.Reader.MethodDefImpl;
+			if (md != null)
+			{
+				return md.GetMethodBody(this);
+			}
+			throw new NotSupportedException();
+		}
+
+		public override MethodInfo MakeGenericMethod(params Type[] typeArguments)
+		{
+			return new GenericMethodInstance(declaringType, method, typeArguments);
+		}
+
+		public override bool IsGenericMethod
+		{
+			get { return method.IsGenericMethod; }
+		}
+
+		public override bool IsGenericMethodDefinition
+		{
+			get { return method.IsGenericMethodDefinition && methodArgs == null; }
+		}
+
+		public override bool ContainsGenericParameters
+		{
+			get
+			{
+				if (declaringType.ContainsGenericParameters)
+				{
+					return true;
+				}
+				if (methodArgs != null)
+				{
+					foreach (Type type in methodArgs)
+					{
+						if (type.ContainsGenericParameters)
+						{
+							return true;
+						}
+					}
+				}
+				return false;
+			}
+		}
+
+		public override MethodInfo GetGenericMethodDefinition()
+		{
+			if (this.IsGenericMethod)
+			{
+				if (this.IsGenericMethodDefinition)
+				{
+					return this;
+				}
+				else
+				{
+					return method.GetGenericMethodDefinition();
+				}
+			}
+			throw new InvalidOperationException();
+		}
+
+		public override Type[] GetGenericArguments()
+		{
+			if (methodArgs == null)
+			{
+				return method.GetGenericArguments();
+			}
+			else
+			{
+				return (Type[])methodArgs.Clone();
+			}
+		}
+
+		internal override Type GetGenericMethodArgument(int index)
+		{
+			if (methodArgs == null)
+			{
+				return method.GetGenericMethodArgument(index);
+			}
+			else
+			{
+				return methodArgs[index];
+			}
+		}
+
+		internal override int GetGenericMethodArgumentCount()
+		{
+			return method.GetGenericMethodArgumentCount();
+		}
+
+		internal override IList<CustomAttributeData> GetCustomAttributesData()
+		{
+			return method.GetCustomAttributesData();
+		}
+
+		internal override MethodInfo GetMethodOnTypeDefinition()
+		{
+			return method.GetMethodOnTypeDefinition();
+		}
+
+		internal override int ImportTo(Emit.ModuleBuilder module)
+		{
+			if (methodArgs == null)
+			{
+				return module.ImportMethodOrField(declaringType, method.Name, method.MethodSignature);
+			}
+			else
+			{
+				Writer.ByteBuffer spec = new Writer.ByteBuffer(10);
+				Signature.WriteMethodSpec(module, spec, methodArgs);
+				return module.ImportMethodSpec(method, spec);
+			}
+		}
+
+		internal override MethodSignature MethodSignature
+		{
+			get { return signature; }
+		}
+	}
+
+	sealed class GenericFieldInstance : FieldInfo
+	{
+		private readonly Type declaringType;
+		private readonly FieldInfo field;
+
+		internal GenericFieldInstance(Type declaringType, FieldInfo field)
+		{
+			this.declaringType = declaringType;
+			this.field = field;
+		}
+
+		public override bool Equals(object obj)
+		{
+			GenericFieldInstance other = obj as GenericFieldInstance;
+			return other != null && other.declaringType.Equals(declaringType) && other.field.Equals(field);
+		}
+
+		public override int GetHashCode()
+		{
+			return declaringType.GetHashCode() * 3 ^ field.GetHashCode();
+		}
+
+		public override FieldAttributes Attributes
+		{
+			get { return field.Attributes; }
+		}
+
+		public override string Name
+		{
+			get { return field.Name; }
+		}
+
+		public override Type DeclaringType
+		{
+			get { return declaringType; }
+		}
+
+		public override Module Module
+		{
+			get { return declaringType.Module; }
+		}
+
+		public override int MetadataToken
+		{
+			get { return field.MetadataToken; }
+		}
+
+		public override object GetRawConstantValue()
+		{
+			return field.GetRawConstantValue();
+		}
+
+		public override void __GetDataFromRVA(byte[] data)
+		{
+			field.__GetDataFromRVA(data);
+		}
+
+		internal override IList<CustomAttributeData> GetCustomAttributesData()
+		{
+			return field.GetCustomAttributesData();
+		}
+
+		internal override FieldSignature FieldSignature
+		{
+			get { return field.FieldSignature.ExpandTypeParameters(declaringType); }
+		}
+
+		internal override int ImportTo(Emit.ModuleBuilder module)
+		{
+			return module.ImportMethodOrField(declaringType, field.Name, field.FieldSignature);
+		}
+	}
+
+	sealed class GenericParameterInfoImpl : ParameterInfo
+	{
+		private readonly MemberInfo member;
+		private readonly IGenericBinder binder;
+		private readonly ParameterInfo parameterInfo;
+
+		internal GenericParameterInfoImpl(MemberInfo member, IGenericBinder binder, ParameterInfo parameterInfo)
+		{
+			this.member = member;
+			this.binder = binder;
+			this.parameterInfo = parameterInfo;
+		}
+
+		public override string Name
+		{
+			get { return parameterInfo.Name; }
+		}
+
+		public override Type ParameterType
+		{
+			get { return parameterInfo.ParameterType.BindTypeParameters(binder); }
+		}
+
+		public override ParameterAttributes Attributes
+		{
+			get { return parameterInfo.Attributes; }
+		}
+
+		public override int Position
+		{
+			get { return parameterInfo.Position; }
+		}
+
+		public override object RawDefaultValue
+		{
+			get { return parameterInfo.RawDefaultValue; }
+		}
+
+		public override Type[] GetOptionalCustomModifiers()
+		{
+			Type[] modifiers = parameterInfo.GetOptionalCustomModifiers();
+			Type.InplaceBindTypeParameters(binder, modifiers);
+			return modifiers;
+		}
+
+		public override Type[] GetRequiredCustomModifiers()
+		{
+			Type[] modifiers = parameterInfo.GetRequiredCustomModifiers();
+			Type.InplaceBindTypeParameters(binder, modifiers);
+			return modifiers;
+		}
+
+		public override MemberInfo Member
+		{
+			get { return member; }
+		}
+
+		public override int MetadataToken
+		{
+			get { return parameterInfo.MetadataToken; }
+		}
+
+		internal override Module Module
+		{
+			get { return member.Module; }
+		}
+	}
+
+	sealed class GenericPropertyInfo : PropertyInfo
+	{
+		private readonly Type typeInstance;
+		private readonly PropertyInfo property;
+
+		internal GenericPropertyInfo(Type typeInstance, PropertyInfo property)
+		{
+			this.typeInstance = typeInstance;
+			this.property = property;
+		}
+
+		public override PropertyAttributes Attributes
+		{
+			get { return property.Attributes; }
+		}
+
+		public override bool CanRead
+		{
+			get { return property.CanRead; }
+		}
+
+		public override bool CanWrite
+		{
+			get { return property.CanWrite; }
+		}
+
+		private MethodInfo Wrap(MethodInfo method)
+		{
+			if (method == null)
+			{
+				return null;
+			}
+			return new GenericMethodInstance(typeInstance, method, null);
+		}
+
+		public override MethodInfo GetGetMethod(bool nonPublic)
+		{
+			return Wrap(property.GetGetMethod(nonPublic));
+		}
+
+		public override MethodInfo GetSetMethod(bool nonPublic)
+		{
+			return Wrap(property.GetSetMethod(nonPublic));
+		}
+
+		public override MethodInfo[] GetAccessors(bool nonPublic)
+		{
+			MethodInfo[] accessors = property.GetAccessors(nonPublic);
+			for (int i = 0; i < accessors.Length; i++)
+			{
+				accessors[i] = Wrap(accessors[i]);
+			}
+			return accessors;
+		}
+
+		public override object GetRawConstantValue()
+		{
+			return property.GetRawConstantValue();
+		}
+
+		internal override bool IsPublic
+		{
+			get { return property.IsPublic; }
+		}
+
+		internal override PropertySignature PropertySignature
+		{
+			get { return property.PropertySignature.ExpandTypeParameters(typeInstance); }
+		}
+
+		public override string Name
+		{
+			get { return property.Name; }
+		}
+
+		public override Type DeclaringType
+		{
+			get { return typeInstance; }
+		}
+
+		public override Module Module
+		{
+			get { return typeInstance.Module; }
+		}
+
+		public override int MetadataToken
+		{
+			get { return property.MetadataToken; }
+		}
+
+		internal override IList<CustomAttributeData> GetCustomAttributesData()
+		{
+			return property.GetCustomAttributesData();
+		}
+	}
+
+	sealed class GenericEventInfo : EventInfo
+	{
+		private readonly Type typeInstance;
+		private readonly EventInfo eventInfo;
+
+		internal GenericEventInfo(Type typeInstance, EventInfo eventInfo)
+		{
+			this.typeInstance = typeInstance;
+			this.eventInfo = eventInfo;
+		}
+
+		public override EventAttributes Attributes
+		{
+			get { return eventInfo.Attributes; }
+		}
+
+		private MethodInfo Wrap(MethodInfo method)
+		{
+			if (method == null)
+			{
+				return null;
+			}
+			return new GenericMethodInstance(typeInstance, method, null);
+		}
+
+		public override MethodInfo GetAddMethod(bool nonPublic)
+		{
+			return Wrap(eventInfo.GetAddMethod(nonPublic));
+		}
+
+		public override MethodInfo GetRaiseMethod(bool nonPublic)
+		{
+			return Wrap(eventInfo.GetRaiseMethod(nonPublic));
+		}
+
+		public override MethodInfo GetRemoveMethod(bool nonPublic)
+		{
+			return Wrap(eventInfo.GetRemoveMethod(nonPublic));
+		}
+
+		public override MethodInfo[] GetOtherMethods(bool nonPublic)
+		{
+			MethodInfo[] others = eventInfo.GetOtherMethods(nonPublic);
+			for (int i = 0; i < others.Length; i++)
+			{
+				others[i] = Wrap(others[i]);
+			}
+			return others;
+		}
+
+		public override Type EventHandlerType
+		{
+			get { return eventInfo.EventHandlerType.BindTypeParameters(typeInstance); }
+		}
+
+		public override string Name
+		{
+			get { return eventInfo.Name; }
+		}
+
+		public override Type DeclaringType
+		{
+			get { return typeInstance; }
+		}
+
+		public override Module Module
+		{
+			get { return eventInfo.Module; }
+		}
+
+		public override int MetadataToken
+		{
+			get { return eventInfo.MetadataToken; }
+		}
+
+		internal override IList<CustomAttributeData> GetCustomAttributesData()
+		{
+			return eventInfo.GetCustomAttributesData();
+		}
+	}
+}