PropertyInfo.cs

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/*
  Copyright (C) 2009-2012 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;
 
namespace IKVM.Reflection
{
 
    internal abstract class PropertyInfo : MemberInfo
    {
 
        internal PropertyInfo()
        {
 
        }
 
        public sealed override MemberTypes MemberType => MemberTypes.Property;
 
        public abstract PropertyAttributes Attributes { get; }
 
        public abstract bool CanRead { get; }
 
        public abstract bool CanWrite { get; }
 
        public abstract MethodInfo GetGetMethod(bool nonPublic);
 
        public abstract MethodInfo GetSetMethod(bool nonPublic);
 
        public abstract MethodInfo[] GetAccessors(bool nonPublic);
 
        public abstract object GetRawConstantValue();
 
        internal abstract bool IsPublic { get; }
 
        internal abstract bool IsNonPrivate { get; }
 
        internal abstract bool IsStatic { get; }
 
        internal abstract PropertySignature PropertySignature { get; }
 
        sealed class ParameterInfoImpl : ParameterInfo
        {
 
            readonly PropertyInfo property;
            readonly int parameter;
 
            internal ParameterInfoImpl(PropertyInfo property, int parameter)
            {
                this.property = property;
                this.parameter = parameter;
            }
 
            public override string Name
            {
                get { return null; }
            }
 
            public override Type ParameterType
            {
                get { return property.PropertySignature.GetParameter(parameter); }
            }
 
            public override ParameterAttributes Attributes
            {
                get { return ParameterAttributes.None; }
            }
 
            public override int Position
            {
                get { return parameter; }
            }
 
            public override object RawDefaultValue
            {
                get { throw new InvalidOperationException(); }
            }
 
            public override CustomModifiers __GetCustomModifiers()
            {
                return property.PropertySignature.GetParameterCustomModifiers(parameter);
            }
 
            public override bool __TryGetFieldMarshal(out FieldMarshal fieldMarshal)
            {
                fieldMarshal = new FieldMarshal();
                return false;
            }
 
            public override MemberInfo Member
            {
                get { return property; }
            }
 
            public override int MetadataToken
            {
                get { return 0x08000000; }
            }
 
            public override Module Module
            {
                get { return property.Module; }
            }
 
        }
 
        public virtual ParameterInfo[] GetIndexParameters()
        {
            var parameters = new ParameterInfo[PropertySignature.ParameterCount];
            for (var i = 0; i < parameters.Length; i++)
                parameters[i] = new ParameterInfoImpl(this, i);
 
            return parameters;
        }
 
        public Type PropertyType
        {
            get { return PropertySignature.PropertyType; }
        }
 
        public CustomModifiers __GetCustomModifiers()
        {
            return PropertySignature.GetCustomModifiers();
        }
 
        public Type[] GetRequiredCustomModifiers()
        {
            return __GetCustomModifiers().GetRequired();
        }
 
        public Type[] GetOptionalCustomModifiers()
        {
            return __GetCustomModifiers().GetOptional();
        }
 
        public bool IsSpecialName
        {
            get { return (Attributes & PropertyAttributes.SpecialName) != 0; }
        }
 
        public MethodInfo GetMethod
        {
            get { return GetGetMethod(true); }
        }
 
        public MethodInfo SetMethod
        {
            get { return GetSetMethod(true); }
        }
 
        public MethodInfo GetGetMethod()
        {
            return GetGetMethod(false);
        }
 
        public MethodInfo GetSetMethod()
        {
            return GetSetMethod(false);
        }
 
        public MethodInfo[] GetAccessors()
        {
            return GetAccessors(false);
        }
 
        public CallingConventions __CallingConvention
        {
            get { return this.PropertySignature.CallingConvention; }
        }
 
        internal virtual PropertyInfo BindTypeParameters(Type type)
        {
            return new GenericPropertyInfo(this.DeclaringType.BindTypeParameters(type), this);
        }
 
        public override string ToString()
        {
            return DeclaringType.ToString() + " " + Name;
        }
 
        internal sealed override bool BindingFlagsMatch(BindingFlags flags)
        {
            return BindingFlagsMatch(IsPublic, flags, BindingFlags.Public, BindingFlags.NonPublic)
                && BindingFlagsMatch(IsStatic, flags, BindingFlags.Static, BindingFlags.Instance);
        }
 
        internal sealed override bool BindingFlagsMatchInherited(BindingFlags flags)
        {
            return IsNonPrivate
                && BindingFlagsMatch(IsPublic, flags, BindingFlags.Public, BindingFlags.NonPublic)
                && BindingFlagsMatch(IsStatic, flags, BindingFlags.Static | BindingFlags.FlattenHierarchy, BindingFlags.Instance);
        }
 
        internal sealed override MemberInfo SetReflectedType(Type type)
        {
            return new PropertyInfoWithReflectedType(type, this);
        }
 
        internal sealed override List<CustomAttributeData> GetPseudoCustomAttributes(Type attributeType)
        {
            // properties don't have pseudo custom attributes
            return null;
        }
 
    }
 
}