ReflectionParameterSymbol.cs

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using System;
using System.Collections.Immutable;
using System.Linq;
using System.Reflection;
 
namespace IKVM.CoreLib.Symbols.Reflection
{
 
    class ReflectionParameterSymbol : ReflectionSymbol, IParameterSymbol
    {
 
        readonly ParameterInfo _underlyingParameter;
        readonly ReflectionMethodBaseSymbol _method;
 
        public ReflectionParameterSymbol(ReflectionSymbolContext context, ReflectionMethodBaseSymbol method, ParameterInfo underlyingParameter) :
            base(context)
        {
            _method = method ?? throw new ArgumentNullException(nameof(method));
            _underlyingParameter = underlyingParameter ?? throw new ArgumentNullException(nameof(underlyingParameter));
        }
 
        internal ReflectionMethodBaseSymbol ContainingMethod => _method;
 
        public ParameterAttributes Attributes => _underlyingParameter.Attributes;
 
        public object? DefaultValue => _underlyingParameter.DefaultValue;
 
        public bool HasDefaultValue => _underlyingParameter.HasDefaultValue;
 
        public bool IsIn => _underlyingParameter.IsIn;
 
        public bool IsLcid => _underlyingParameter.IsLcid;
 
        public bool IsOptional => _underlyingParameter.IsOptional;
 
        public bool IsOut => _underlyingParameter.IsOut;
 
        public bool IsRetval => _underlyingParameter.IsRetval;
 
        public IMemberSymbol Member => ResolveMemberSymbol(_underlyingParameter.Member);
 
        public int MetadataToken => _underlyingParameter.MetadataToken;
 
        public string? Name => _underlyingParameter.Name;
 
        public ITypeSymbol ParameterType => ResolveTypeSymbol(_underlyingParameter.ParameterType);
 
        public int Position => _underlyingParameter.Position;
 
        public ImmutableArray<CustomAttributeSymbol> GetCustomAttributes()
        {
            return ResolveCustomAttributes(_underlyingParameter.GetCustomAttributesData());
        }
 
        public ImmutableArray<CustomAttributeSymbol> GetCustomAttributes(ITypeSymbol attributeType)
        {
            return ResolveCustomAttributes(_underlyingParameter.GetCustomAttributesData()).Where(i => i.AttributeType == attributeType).ToImmutableArray();
        }
 
        public bool IsDefined(ITypeSymbol attributeType)
        {
            return _underlyingParameter.IsDefined(((ReflectionTypeSymbol)attributeType).UnderlyingType);
        }
 
    }
 
}