746 lines
21 KiB
C#
746 lines
21 KiB
C#
//
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// MonoMethod.cs: The class used to represent methods from the mono runtime.
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//
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// Authors:
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// Paolo Molaro (lupus@ximian.com)
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// Marek Safar (marek.safar@gmail.com)
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//
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// (C) 2001 Ximian, Inc. http://www.ximian.com
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// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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// Copyright (C) 2012 Xamarin Inc (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Collections.Generic;
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using System.Globalization;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Runtime.Serialization;
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#if !FULL_AOT_RUNTIME
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using System.Reflection.Emit;
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#endif
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using System.Security;
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using System.Threading;
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using System.Text;
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using System.Diagnostics;
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using System.Diagnostics.Contracts;
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namespace System.Reflection {
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internal struct MonoMethodInfo
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{
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#pragma warning disable 649
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private Type parent;
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private Type ret;
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internal MethodAttributes attrs;
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internal MethodImplAttributes iattrs;
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private CallingConventions callconv;
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#pragma warning restore 649
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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static extern void get_method_info (IntPtr handle, out MonoMethodInfo info);
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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static extern int get_method_attributes (IntPtr handle);
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internal static MonoMethodInfo GetMethodInfo (IntPtr handle)
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{
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MonoMethodInfo info;
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MonoMethodInfo.get_method_info (handle, out info);
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return info;
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}
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internal static Type GetDeclaringType (IntPtr handle)
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{
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return GetMethodInfo (handle).parent;
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}
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internal static Type GetReturnType (IntPtr handle)
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{
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return GetMethodInfo (handle).ret;
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}
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internal static MethodAttributes GetAttributes (IntPtr handle)
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{
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return (MethodAttributes)get_method_attributes (handle);
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}
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internal static CallingConventions GetCallingConvention (IntPtr handle)
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{
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return GetMethodInfo (handle).callconv;
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}
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internal static MethodImplAttributes GetMethodImplementationFlags (IntPtr handle)
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{
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return GetMethodInfo (handle).iattrs;
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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static extern ParameterInfo[] get_parameter_info (IntPtr handle, MemberInfo member);
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static internal ParameterInfo[] GetParametersInfo (IntPtr handle, MemberInfo member)
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{
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return get_parameter_info (handle, member);
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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static extern MarshalAsAttribute get_retval_marshal (IntPtr handle);
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static internal ParameterInfo GetReturnParameterInfo (MonoMethod method)
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{
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return ParameterInfo.New (GetReturnType (method.mhandle), method, get_retval_marshal (method.mhandle));
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}
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};
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abstract class RuntimeMethodInfo : MethodInfo, ISerializable
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{
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internal BindingFlags BindingFlags {
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get {
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return 0;
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}
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}
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public override Module Module {
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get {
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return GetRuntimeModule ();
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}
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}
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RuntimeType ReflectedTypeInternal {
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get {
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return (RuntimeType) ReflectedType;
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}
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}
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internal override string FormatNameAndSig (bool serialization)
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{
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// Serialization uses ToString to resolve MethodInfo overloads.
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StringBuilder sbName = new StringBuilder(Name);
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// serialization == true: use unambiguous (except for assembly name) type names to distinguish between overloads.
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// serialization == false: use basic format to maintain backward compatibility of MethodInfo.ToString().
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TypeNameFormatFlags format = serialization ? TypeNameFormatFlags.FormatSerialization : TypeNameFormatFlags.FormatBasic;
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if (IsGenericMethod)
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sbName.Append(RuntimeMethodHandle.ConstructInstantiation(this, format));
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sbName.Append("(");
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ParameterInfo.FormatParameters (sbName, GetParametersNoCopy (), CallingConvention, serialization);
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sbName.Append(")");
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return sbName.ToString();
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}
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public override String ToString()
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{
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return ReturnType.FormatTypeName() + " " + FormatNameAndSig(false);
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}
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internal RuntimeModule GetRuntimeModule ()
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{
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return ((RuntimeType)DeclaringType).GetRuntimeModule();
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}
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#region ISerializable Implementation
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public void GetObjectData(SerializationInfo info, StreamingContext context)
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{
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if (info == null)
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throw new ArgumentNullException("info");
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Contract.EndContractBlock();
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MemberInfoSerializationHolder.GetSerializationInfo(
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info,
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Name,
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ReflectedTypeInternal,
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ToString(),
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SerializationToString(),
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MemberTypes.Method,
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IsGenericMethod & !IsGenericMethodDefinition ? GetGenericArguments() : null);
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}
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internal string SerializationToString()
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{
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return ReturnType.FormatTypeName(true) + " " + FormatNameAndSig(true);
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}
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#endregion
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}
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/*
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* Note: most of this class needs to be duplicated for the contructor, since
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* the .NET reflection class hierarchy is so broken.
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*/
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[Serializable()]
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[StructLayout (LayoutKind.Sequential)]
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internal class MonoMethod : RuntimeMethodInfo
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{
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#pragma warning disable 649
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internal IntPtr mhandle;
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string name;
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Type reftype;
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#pragma warning restore 649
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internal MonoMethod () {
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}
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internal MonoMethod (RuntimeMethodHandle mhandle) {
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this.mhandle = mhandle.Value;
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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internal static extern string get_name (MethodBase method);
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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internal static extern MonoMethod get_base_method (MonoMethod method, bool definition);
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public override MethodInfo GetBaseDefinition ()
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{
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return get_base_method (this, true);
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}
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internal override MethodInfo GetBaseMethod ()
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{
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return get_base_method (this, false);
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}
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public override ParameterInfo ReturnParameter {
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get {
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return MonoMethodInfo.GetReturnParameterInfo (this);
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}
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}
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public override Type ReturnType {
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get {
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return MonoMethodInfo.GetReturnType (mhandle);
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}
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}
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public override ICustomAttributeProvider ReturnTypeCustomAttributes {
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get {
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return MonoMethodInfo.GetReturnParameterInfo (this);
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}
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}
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public override MethodImplAttributes GetMethodImplementationFlags ()
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{
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return MonoMethodInfo.GetMethodImplementationFlags (mhandle);
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}
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public override ParameterInfo[] GetParameters ()
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{
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var src = MonoMethodInfo.GetParametersInfo (mhandle, this);
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if (src.Length == 0)
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return src;
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// Have to clone because GetParametersInfo icall returns cached value
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var dest = new ParameterInfo [src.Length];
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Array.FastCopy (src, 0, dest, 0, src.Length);
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return dest;
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}
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internal override ParameterInfo[] GetParametersInternal ()
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{
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return MonoMethodInfo.GetParametersInfo (mhandle, this);
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}
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internal override int GetParametersCount ()
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{
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return MonoMethodInfo.GetParametersInfo (mhandle, this).Length;
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}
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/*
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* InternalInvoke() receives the parameters correctly converted by the
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* binder to match the types of the method signature.
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*/
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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internal extern Object InternalInvoke (Object obj, Object[] parameters, out Exception exc);
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[DebuggerHidden]
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[DebuggerStepThrough]
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public override Object Invoke (Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
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{
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if (binder == null)
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binder = Type.DefaultBinder;
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/*Avoid allocating an array every time*/
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ParameterInfo[] pinfo = GetParametersInternal ();
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ConvertValues (binder, parameters, pinfo, culture, invokeAttr);
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if (ContainsGenericParameters)
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throw new InvalidOperationException ("Late bound operations cannot be performed on types or methods for which ContainsGenericParameters is true.");
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Exception exc;
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object o = null;
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try {
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// The ex argument is used to distinguish exceptions thrown by the icall
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// from the exceptions thrown by the called method (which need to be
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// wrapped in TargetInvocationException).
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o = InternalInvoke (obj, parameters, out exc);
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} catch (ThreadAbortException) {
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throw;
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#if NET_2_1
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} catch (MethodAccessException) {
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throw;
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#endif
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} catch (Exception e) {
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throw new TargetInvocationException (e);
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}
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if (exc != null)
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throw exc;
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return o;
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}
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internal static void ConvertValues (Binder binder, object[] args, ParameterInfo[] pinfo, CultureInfo culture, BindingFlags invokeAttr)
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{
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if (args == null) {
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if (pinfo.Length == 0)
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return;
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throw new TargetParameterCountException ();
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}
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if (pinfo.Length != args.Length)
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throw new TargetParameterCountException ();
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for (int i = 0; i < args.Length; ++i) {
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var arg = args [i];
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var pi = pinfo [i];
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if (arg == Type.Missing) {
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if (pi.DefaultValue == System.DBNull.Value)
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throw new ArgumentException(Environment.GetResourceString("Arg_VarMissNull"),"parameters");
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args [i] = pi.DefaultValue;
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continue;
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}
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var rt = (RuntimeType) pi.ParameterType;
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args [i] = rt.CheckValue (arg, binder, culture, invokeAttr);
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}
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}
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public override RuntimeMethodHandle MethodHandle {
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get {
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return new RuntimeMethodHandle (mhandle);
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}
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}
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public override MethodAttributes Attributes {
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get {
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return MonoMethodInfo.GetAttributes (mhandle);
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}
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}
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public override CallingConventions CallingConvention {
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get {
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return MonoMethodInfo.GetCallingConvention (mhandle);
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}
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}
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public override Type ReflectedType {
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get {
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return reftype;
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}
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}
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public override Type DeclaringType {
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get {
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return MonoMethodInfo.GetDeclaringType (mhandle);
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}
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}
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public override string Name {
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get {
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if (name != null)
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return name;
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return get_name (this);
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}
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}
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public override bool IsDefined (Type attributeType, bool inherit) {
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return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
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}
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public override object[] GetCustomAttributes( bool inherit) {
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return MonoCustomAttrs.GetCustomAttributes (this, inherit);
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}
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public override object[] GetCustomAttributes( Type attributeType, bool inherit) {
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return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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internal extern void GetPInvoke (out PInvokeAttributes flags, out string entryPoint, out string dllName);
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internal object[] GetPseudoCustomAttributes ()
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{
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int count = 0;
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/* MS.NET doesn't report MethodImplAttribute */
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MonoMethodInfo info = MonoMethodInfo.GetMethodInfo (mhandle);
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if ((info.iattrs & MethodImplAttributes.PreserveSig) != 0)
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count ++;
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if ((info.attrs & MethodAttributes.PinvokeImpl) != 0)
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count ++;
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if (count == 0)
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return null;
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object[] attrs = new object [count];
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count = 0;
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if ((info.iattrs & MethodImplAttributes.PreserveSig) != 0)
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attrs [count ++] = new PreserveSigAttribute ();
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if ((info.attrs & MethodAttributes.PinvokeImpl) != 0) {
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attrs [count ++] = DllImportAttribute.GetCustomAttribute (this);
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}
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return attrs;
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}
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public override MethodInfo MakeGenericMethod (Type [] methodInstantiation)
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{
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if (methodInstantiation == null)
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throw new ArgumentNullException ("methodInstantiation");
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if (!IsGenericMethodDefinition)
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throw new InvalidOperationException ("not a generic method definition");
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/*FIXME add GetGenericArgumentsLength() internal vcall to speed this up*/
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if (GetGenericArguments ().Length != methodInstantiation.Length)
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throw new ArgumentException ("Incorrect length");
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bool hasUserType = false;
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foreach (Type type in methodInstantiation) {
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if (type == null)
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throw new ArgumentNullException ();
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if (!(type is MonoType))
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hasUserType = true;
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}
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if (hasUserType)
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#if FULL_AOT_RUNTIME
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throw new NotSupportedException ("User types are not supported under full aot");
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#else
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return new MethodOnTypeBuilderInst (this, methodInstantiation);
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#endif
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MethodInfo ret = MakeGenericMethod_impl (methodInstantiation);
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if (ret == null)
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throw new ArgumentException (String.Format ("The method has {0} generic parameter(s) but {1} generic argument(s) were provided.", GetGenericArguments ().Length, methodInstantiation.Length));
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return ret;
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}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern MethodInfo MakeGenericMethod_impl (Type [] types);
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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public override extern Type [] GetGenericArguments ();
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern MethodInfo GetGenericMethodDefinition_impl ();
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public override MethodInfo GetGenericMethodDefinition ()
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{
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MethodInfo res = GetGenericMethodDefinition_impl ();
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if (res == null)
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throw new InvalidOperationException ();
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return res;
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}
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public override extern bool IsGenericMethodDefinition {
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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get;
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}
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public override extern bool IsGenericMethod {
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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get;
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}
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public override bool ContainsGenericParameters {
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get {
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if (IsGenericMethod) {
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foreach (Type arg in GetGenericArguments ())
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if (arg.ContainsGenericParameters)
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return true;
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}
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return DeclaringType.ContainsGenericParameters;
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}
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}
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public override MethodBody GetMethodBody () {
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return GetMethodBody (mhandle);
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}
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public override IList<CustomAttributeData> GetCustomAttributesData () {
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return CustomAttributeData.GetCustomAttributes (this);
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}
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//seclevel { transparent = 0, safe-critical = 1, critical = 2}
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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public extern int get_core_clr_security_level ();
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public override bool IsSecurityTransparent {
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get { return get_core_clr_security_level () == 0; }
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}
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public override bool IsSecurityCritical {
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get { return get_core_clr_security_level () > 0; }
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}
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public override bool IsSecuritySafeCritical {
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get { return get_core_clr_security_level () == 1; }
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}
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}
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|
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abstract class RuntimeConstructorInfo : ConstructorInfo, ISerializable
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{
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public override Module Module {
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get {
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return GetRuntimeModule ();
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}
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}
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internal RuntimeModule GetRuntimeModule ()
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{
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return RuntimeTypeHandle.GetModule((RuntimeType)DeclaringType);
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}
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internal BindingFlags BindingFlags {
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get {
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return 0;
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}
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}
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RuntimeType ReflectedTypeInternal {
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get {
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return (RuntimeType) ReflectedType;
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}
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}
|
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|
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#region ISerializable Implementation
|
|
public void GetObjectData(SerializationInfo info, StreamingContext context)
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|
{
|
|
if (info == null)
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throw new ArgumentNullException("info");
|
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Contract.EndContractBlock();
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MemberInfoSerializationHolder.GetSerializationInfo(
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info,
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Name,
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ReflectedTypeInternal,
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ToString(),
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SerializationToString(),
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MemberTypes.Constructor,
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null);
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}
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|
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internal string SerializationToString()
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{
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// We don't need the return type for constructors.
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return FormatNameAndSig(true);
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}
|
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|
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internal void SerializationInvoke (Object target, SerializationInfo info, StreamingContext context)
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{
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Invoke (target, new object[] { info, context });
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}
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#endregion
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}
|
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|
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[Serializable()]
|
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[StructLayout (LayoutKind.Sequential)]
|
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internal class MonoCMethod : RuntimeConstructorInfo
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{
|
|
#pragma warning disable 649
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internal IntPtr mhandle;
|
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string name;
|
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Type reftype;
|
|
#pragma warning restore 649
|
|
|
|
public override MethodImplAttributes GetMethodImplementationFlags ()
|
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{
|
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return MonoMethodInfo.GetMethodImplementationFlags (mhandle);
|
|
}
|
|
|
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public override ParameterInfo[] GetParameters ()
|
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{
|
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return MonoMethodInfo.GetParametersInfo (mhandle, this);
|
|
}
|
|
|
|
internal override ParameterInfo[] GetParametersInternal ()
|
|
{
|
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return MonoMethodInfo.GetParametersInfo (mhandle, this);
|
|
}
|
|
|
|
internal override int GetParametersCount ()
|
|
{
|
|
var pi = MonoMethodInfo.GetParametersInfo (mhandle, this);
|
|
return pi == null ? 0 : pi.Length;
|
|
}
|
|
|
|
/*
|
|
* InternalInvoke() receives the parameters correctly converted by the binder
|
|
* to match the types of the method signature.
|
|
*/
|
|
[MethodImplAttribute(MethodImplOptions.InternalCall)]
|
|
internal extern Object InternalInvoke (Object obj, Object[] parameters, out Exception exc);
|
|
|
|
[DebuggerHidden]
|
|
[DebuggerStepThrough]
|
|
public override object Invoke (object obj, BindingFlags invokeAttr, Binder binder, object[] parameters, CultureInfo culture)
|
|
{
|
|
if (obj == null) {
|
|
if (!IsStatic)
|
|
throw new TargetException ("Instance constructor requires a target");
|
|
} else if (!DeclaringType.IsInstanceOfType (obj)) {
|
|
throw new TargetException ("Constructor does not match target type");
|
|
}
|
|
|
|
return DoInvoke (obj, invokeAttr, binder, parameters, culture);
|
|
}
|
|
|
|
object DoInvoke (object obj, BindingFlags invokeAttr, Binder binder, object[] parameters, CultureInfo culture)
|
|
{
|
|
if (binder == null)
|
|
binder = Type.DefaultBinder;
|
|
|
|
ParameterInfo[] pinfo = MonoMethodInfo.GetParametersInfo (mhandle, this);
|
|
|
|
MonoMethod.ConvertValues (binder, parameters, pinfo, culture, invokeAttr);
|
|
|
|
if (obj == null && DeclaringType.ContainsGenericParameters)
|
|
throw new MemberAccessException ("Cannot create an instance of " + DeclaringType + " because Type.ContainsGenericParameters is true.");
|
|
|
|
if ((invokeAttr & BindingFlags.CreateInstance) != 0 && DeclaringType.IsAbstract) {
|
|
throw new MemberAccessException (String.Format ("Cannot create an instance of {0} because it is an abstract class", DeclaringType));
|
|
}
|
|
|
|
return InternalInvoke (obj, parameters);
|
|
}
|
|
|
|
public object InternalInvoke (object obj, object[] parameters)
|
|
{
|
|
Exception exc;
|
|
object o = null;
|
|
|
|
try {
|
|
o = InternalInvoke (obj, parameters, out exc);
|
|
#if NET_2_1
|
|
} catch (MethodAccessException) {
|
|
throw;
|
|
#endif
|
|
} catch (Exception e) {
|
|
throw new TargetInvocationException (e);
|
|
}
|
|
|
|
if (exc != null)
|
|
throw exc;
|
|
|
|
return obj == null ? o : null;
|
|
}
|
|
|
|
[DebuggerHidden]
|
|
[DebuggerStepThrough]
|
|
public override Object Invoke (BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
|
|
{
|
|
return DoInvoke (null, invokeAttr, binder, parameters, culture);
|
|
}
|
|
|
|
public override RuntimeMethodHandle MethodHandle {
|
|
get {
|
|
return new RuntimeMethodHandle (mhandle);
|
|
}
|
|
}
|
|
|
|
public override MethodAttributes Attributes {
|
|
get {
|
|
return MonoMethodInfo.GetAttributes (mhandle);
|
|
}
|
|
}
|
|
|
|
public override CallingConventions CallingConvention {
|
|
get {
|
|
return MonoMethodInfo.GetCallingConvention (mhandle);
|
|
}
|
|
}
|
|
|
|
public override bool ContainsGenericParameters {
|
|
get {
|
|
return DeclaringType.ContainsGenericParameters;
|
|
}
|
|
}
|
|
|
|
public override Type ReflectedType {
|
|
get {
|
|
return reftype;
|
|
}
|
|
}
|
|
public override Type DeclaringType {
|
|
get {
|
|
return MonoMethodInfo.GetDeclaringType (mhandle);
|
|
}
|
|
}
|
|
public override string Name {
|
|
get {
|
|
if (name != null)
|
|
return name;
|
|
return MonoMethod.get_name (this);
|
|
}
|
|
}
|
|
|
|
public override bool IsDefined (Type attributeType, bool inherit) {
|
|
return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
|
|
}
|
|
|
|
public override object[] GetCustomAttributes( bool inherit) {
|
|
return MonoCustomAttrs.GetCustomAttributes (this, inherit);
|
|
}
|
|
|
|
public override object[] GetCustomAttributes( Type attributeType, bool inherit) {
|
|
return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
|
|
}
|
|
|
|
public override MethodBody GetMethodBody () {
|
|
return GetMethodBody (mhandle);
|
|
}
|
|
|
|
public override string ToString () {
|
|
StringBuilder sb = new StringBuilder ();
|
|
sb.Append ("Void ");
|
|
sb.Append (Name);
|
|
sb.Append ("(");
|
|
ParameterInfo[] p = GetParameters ();
|
|
for (int i = 0; i < p.Length; ++i) {
|
|
if (i > 0)
|
|
sb.Append (", ");
|
|
sb.Append (p[i].ParameterType.Name);
|
|
}
|
|
if (CallingConvention == CallingConventions.Any)
|
|
sb.Append (", ...");
|
|
sb.Append (")");
|
|
return sb.ToString ();
|
|
}
|
|
|
|
public override IList<CustomAttributeData> GetCustomAttributesData () {
|
|
return CustomAttributeData.GetCustomAttributes (this);
|
|
}
|
|
}
|
|
}
|