IkvmReflectionTypeSymbol.cs

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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection.Metadata.Ecma335;
using System.Threading;
 
using IKVM.Reflection;
 
using ConstructorInfo = IKVM.Reflection.ConstructorInfo;
using EventInfo = IKVM.Reflection.EventInfo;
using FieldInfo = IKVM.Reflection.FieldInfo;
using MethodBase = IKVM.Reflection.MethodBase;
using MethodInfo = IKVM.Reflection.MethodInfo;
using PropertyInfo = IKVM.Reflection.PropertyInfo;
using Type = IKVM.Reflection.Type;
 
namespace IKVM.CoreLib.Symbols.IkvmReflection
{
 
    class IkvmReflectionTypeSymbol : IkvmReflectionMemberSymbol, ITypeSymbol
    {
 
        const BindingFlags DefaultBindingFlags = BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance;
 
        readonly Type _underlyingType;
 
        MethodBase[]? _methodsSource;
        int _methodsBaseRow;
        IkvmReflectionMethodBaseSymbol?[]? _methods;
 
        FieldInfo[]? _fieldsSource;
        int _fieldsBaseRow;
        IkvmReflectionFieldSymbol?[]? _fields;
 
        PropertyInfo[]? _propertiesSource;
        int _propertiesBaseRow;
        IkvmReflectionPropertySymbol?[]? _properties;
 
        EventInfo[]? _eventsSource;
        int _eventsBaseRow;
        IkvmReflectionEventSymbol?[]? _events;
 
        IkvmReflectionTypeSymbol?[]? _asArray;
        IkvmReflectionTypeSymbol? _asSZArray;
        IkvmReflectionTypeSymbol? _asPointer;
        IkvmReflectionTypeSymbol? _asByRef;
 
        Type[]? _genericParametersSource;
        IkvmReflectionTypeSymbol?[]? _genericParameters;
        List<(Type[] Arguments, IkvmReflectionTypeSymbol Symbol)>? _genericTypes;
        ReaderWriterLockSlim? _genericTypesLock;
 
        public IkvmReflectionTypeSymbol(IkvmReflectionSymbolContext context, IkvmReflectionModuleSymbol module, Type underlyingType) :
            base(context, module, null, underlyingType)
        {
            Debug.Assert(module.UnderlyingModule == underlyingType.Module);
            _underlyingType = underlyingType ?? throw new ArgumentNullException(nameof(underlyingType));
        }
 
        internal IkvmReflectionMethodSymbol GetOrCreateMethodSymbol(MethodInfo method)
        {
            return (IkvmReflectionMethodSymbol)GetOrCreateMethodBaseSymbol(method);
        }
 
        internal IkvmReflectionConstructorSymbol GetOrCreateConstructorSymbol(ConstructorInfo ctor)
        {
            return (IkvmReflectionConstructorSymbol)GetOrCreateMethodBaseSymbol(ctor);
        }
 
        internal IkvmReflectionMethodBaseSymbol GetOrCreateMethodBaseSymbol(MethodBase method)
        {
            if (method is null)
                throw new ArgumentNullException(nameof(method));
 
            Debug.Assert(method.DeclaringType == _underlyingType);
 
            var hnd = MetadataTokens.MethodDefinitionHandle(method.MetadataToken);
            var row = MetadataTokens.GetRowNumber(hnd);
 
            // initialize source table
            if (_methodsSource == null)
            {
                Interlocked.CompareExchange(ref _methodsSource, _underlyingType.GetConstructors(DefaultBindingFlags).Cast<MethodBase>().Concat(_underlyingType.GetMethods(DefaultBindingFlags)).OrderBy(i => i.MetadataToken).ToArray(), null);
                _methodsBaseRow = _methodsSource.Length != 0 ? MetadataTokens.GetRowNumber(MetadataTokens.MethodDefinitionHandle(_methodsSource[0].MetadataToken)) : 0;
            }
 
            // initialize cache table
            if (_methods == null)
                Interlocked.CompareExchange(ref _methods, new IkvmReflectionMethodBaseSymbol?[_methodsSource.Length], null);
 
            // index of current record is specified row - base
            var idx = row - _methodsBaseRow;
            Debug.Assert(idx >= 0);
            Debug.Assert(idx < _methodsSource.Length);
 
            // check that our list is long enough to contain the entire table
            if (_methods.Length < idx)
                throw new IndexOutOfRangeException();
 
            // if not yet created, create, allow multiple instances, but only one is eventually inserted
            ref var rec = ref _methods[idx];
            if (rec == null)
            {
                switch (method)
                {
                    case ConstructorInfo c:
                        Interlocked.CompareExchange(ref rec, new IkvmReflectionConstructorSymbol(Context, ContainingModule, this, c), null);
                        break;
                    case MethodInfo m:
                        Interlocked.CompareExchange(ref rec, new IkvmReflectionMethodSymbol(Context, ContainingModule, this, m), null);
                        break;
                }
            }
 
            // this should never happen
            if (rec is not IkvmReflectionMethodBaseSymbol sym)
                throw new InvalidOperationException();
 
            return sym;
        }
 
        internal IkvmReflectionFieldSymbol GetOrCreateFieldSymbol(FieldInfo field)
        {
            if (field is null)
                throw new ArgumentNullException(nameof(field));
 
            Debug.Assert(field.DeclaringType == _underlyingType);
 
            var hnd = MetadataTokens.FieldDefinitionHandle(field.MetadataToken);
            var row = MetadataTokens.GetRowNumber(hnd);
 
            // initialize source table
            if (_fieldsSource == null)
            {
                Interlocked.CompareExchange(ref _fieldsSource, _underlyingType.GetFields(DefaultBindingFlags).OrderBy(i => i.MetadataToken).ToArray(), null);
                _fieldsBaseRow = _fieldsSource.Length != 0 ? MetadataTokens.GetRowNumber(MetadataTokens.MethodDefinitionHandle(_fieldsSource[0].MetadataToken)) : 0;
            }
 
            // initialize cache table
            if (_fields == null)
                Interlocked.CompareExchange(ref _fields, new IkvmReflectionFieldSymbol?[_fieldsSource.Length], null);
 
            // index of current field is specified row - base
            var idx = row - _fieldsBaseRow;
            Debug.Assert(idx >= 0);
            Debug.Assert(idx < _fieldsSource.Length);
 
            // check that our list is long enough to contain the entire table
            if (_fields.Length < idx)
                throw new IndexOutOfRangeException();
 
            // if not yet created, create, allow multiple instances, but only one is eventually inserted
            ref var rec = ref _fields[idx];
            if (rec == null)
                Interlocked.CompareExchange(ref rec, new IkvmReflectionFieldSymbol(Context, this, field), null);
 
            // this should never happen
            if (rec is not IkvmReflectionFieldSymbol sym)
                throw new InvalidOperationException();
 
            return sym;
        }
 
        internal IkvmReflectionPropertySymbol GetOrCreatePropertySymbol(PropertyInfo property)
        {
            if (property is null)
                throw new ArgumentNullException(nameof(property));
 
            Debug.Assert(property.DeclaringType == _underlyingType);
 
            var hnd = MetadataTokens.PropertyDefinitionHandle(property.MetadataToken);
            var row = MetadataTokens.GetRowNumber(hnd);
 
            // initialize source table
            if (_propertiesSource == null)
            {
                Interlocked.CompareExchange(ref _propertiesSource, _underlyingType.GetProperties(DefaultBindingFlags).OrderBy(i => i.MetadataToken).ToArray(), null);
                _propertiesBaseRow = _propertiesSource.Length != 0 ? MetadataTokens.GetRowNumber(MetadataTokens.MethodDefinitionHandle(_propertiesSource[0].MetadataToken)) : 0;
            }
 
            // initialize cache table
            if (_properties == null)
                Interlocked.CompareExchange(ref _properties, new IkvmReflectionPropertySymbol?[_propertiesSource.Length], null);
 
            // index of current property is specified row - base
            var idx = row - _propertiesBaseRow;
            Debug.Assert(idx >= 0);
            Debug.Assert(idx < _propertiesSource.Length);
 
            // check that our list is long enough to contain the entire table
            if (_properties.Length < idx)
                throw new IndexOutOfRangeException();
 
            // if not yet created, create, allow multiple instances, but only one is eventually inserted
            ref var rec = ref _properties[idx];
            if (rec == null)
                Interlocked.CompareExchange(ref rec, new IkvmReflectionPropertySymbol(Context, this, property), null);
 
            // this should never happen
            if (rec is not IkvmReflectionPropertySymbol sym)
                throw new InvalidOperationException();
 
            return sym;
        }
 
        internal IkvmReflectionEventSymbol GetOrCreateEventSymbol(EventInfo @event)
        {
            if (@event is null)
                throw new ArgumentNullException(nameof(@event));
 
            Debug.Assert(@event.DeclaringType == _underlyingType);
 
            var hnd = MetadataTokens.PropertyDefinitionHandle(@event.MetadataToken);
            var row = MetadataTokens.GetRowNumber(hnd);
 
            // initialize source events
            if (_eventsSource == null)
            {
                Interlocked.CompareExchange(ref _eventsSource, _underlyingType.GetEvents(DefaultBindingFlags).OrderBy(i => i.MetadataToken).ToArray(), null);
                _eventsBaseRow = _eventsSource.Length != 0 ? MetadataTokens.GetRowNumber(MetadataTokens.EventDefinitionHandle(_eventsSource[0].MetadataToken)) : 0;
            }
 
            // initialize cache table
            if (_events == null)
                Interlocked.CompareExchange(ref _events, new IkvmReflectionEventSymbol?[_eventsSource.Length], null);
 
            // index of current event is specified row - base
            var idx = row - _eventsBaseRow;
            Debug.Assert(idx >= 0);
            Debug.Assert(idx < _eventsSource.Length);
 
            // check that our list is long enough to contain the entire table
            if (_events.Length < idx)
                throw new IndexOutOfRangeException();
 
            // if not yet created, create, allow multiple instances, but only one is eventually inserted
            ref var rec = ref _events[idx];
            if (rec == null)
                Interlocked.CompareExchange(ref rec, new IkvmReflectionEventSymbol(Context, this, @event), null);
 
            // this should never happen
            if (rec is not IkvmReflectionEventSymbol sym)
                throw new InvalidOperationException();
 
            return sym;
        }
 
        internal IkvmReflectionTypeSymbol GetOrCreateGenericParameterSymbol(Type genericTypeParameterType)
        {
            if (genericTypeParameterType is null)
                throw new ArgumentNullException(nameof(genericTypeParameterType));
 
            Debug.Assert(genericTypeParameterType.DeclaringType == _underlyingType);
 
            // initialize tables
            if (_genericParametersSource == null)
                Interlocked.CompareExchange(ref _genericParametersSource, _underlyingType.GetGenericArguments(), null);
            if (_genericParameters == null)
                Interlocked.CompareExchange(ref _genericParameters, new IkvmReflectionTypeSymbol?[_genericParametersSource.Length], null);
 
            // position of the parameter in the list
            var idx = genericTypeParameterType.GenericParameterPosition;
 
            // check that our list is long enough to contain the entire table
            if (_genericParameters.Length < idx)
                throw new IndexOutOfRangeException();
 
            // if not yet created, create, allow multiple instances, but only one is eventually inserted
            ref var rec = ref _genericParameters[idx];
            if (rec == null)
                Interlocked.CompareExchange(ref rec, new IkvmReflectionTypeSymbol(Context, ContainingModule, genericTypeParameterType), null);
 
            // this should never happen
            if (rec is not IkvmReflectionTypeSymbol sym)
                throw new InvalidOperationException();
 
            return sym;
        }
 
        internal IkvmReflectionTypeSymbol GetOrCreateGenericTypeSymbol(Type[] genericTypeArguments)
        {
            if (genericTypeArguments is null)
                throw new ArgumentNullException(nameof(genericTypeArguments));
 
            if (_underlyingType.IsGenericTypeDefinition == false)
                throw new InvalidOperationException();
 
            // initialize the available parameters
            if (_genericParametersSource == null)
                Interlocked.CompareExchange(ref _genericParametersSource, _underlyingType.GetGenericArguments(), null);
            if (_genericParametersSource.Length != genericTypeArguments.Length)
                throw new InvalidOperationException();
 
            // initialize generic type map, and lock on it since we're potentially adding items
            if (_genericTypes == null)
                Interlocked.CompareExchange(ref _genericTypes, [], null);
            if (_genericTypesLock == null)
                Interlocked.CompareExchange(ref _genericTypesLock, new(), null);
 
            try
            {
                _genericTypesLock.EnterUpgradeableReadLock();
 
                // find existing entry
                foreach (var i in _genericTypes)
                    if (i.Arguments.SequenceEqual(genericTypeArguments))
                        return i.Symbol;
 
                try
                {
                    _genericTypesLock.EnterWriteLock();
 
                    // generate new symbol
                    var sym = new IkvmReflectionTypeSymbol(Context, ContainingModule, _underlyingType.MakeGenericType(genericTypeArguments));
                    _genericTypes.Add((genericTypeArguments, sym));
                    return sym;
                }
                finally
                {
                    _genericTypesLock.ExitWriteLock();
                }
            }
            finally
            {
                _genericTypesLock.ExitUpgradeableReadLock();
            }
        }
 
        protected internal override IkvmReflectionTypeSymbol ResolveTypeSymbol(Type type)
        {
            if (type == _underlyingType)
                return this;
            else
                return base.ResolveTypeSymbol(type);
        }
 
        protected internal override IkvmReflectionConstructorSymbol ResolveConstructorSymbol(ConstructorInfo ctor)
        {
            if (ctor.DeclaringType == _underlyingType)
                return GetOrCreateConstructorSymbol(ctor);
            else
                return base.ResolveConstructorSymbol(ctor);
        }
 
        protected internal override IkvmReflectionMethodSymbol ResolveMethodSymbol(MethodInfo method)
        {
            if (method.DeclaringType == _underlyingType)
                return GetOrCreateMethodSymbol(method);
            else
                return base.ResolveMethodSymbol(method);
        }
 
        protected internal override IkvmReflectionFieldSymbol ResolveFieldSymbol(FieldInfo field)
        {
            if (field.DeclaringType == _underlyingType)
                return GetOrCreateFieldSymbol(field);
            else
                return base.ResolveFieldSymbol(field);
        }
 
        protected internal override IkvmReflectionPropertySymbol ResolvePropertySymbol(PropertyInfo property)
        {
            if (property.DeclaringType == _underlyingType)
                return GetOrCreatePropertySymbol(property);
            else
                return base.ResolvePropertySymbol(property);
        }
 
        protected internal override IkvmReflectionEventSymbol ResolveEventSymbol(EventInfo @event)
        {
            if (@event.DeclaringType == _underlyingType)
                return GetOrCreateEventSymbol(@event);
            else
                return base.ResolveEventSymbol(@event);
        }
 
        internal Type UnderlyingType => _underlyingType;
 
        public IAssemblySymbol Assembly => Context.GetOrCreateAssemblySymbol(_underlyingType.Assembly);
 
        public string? AssemblyQualifiedName => _underlyingType.AssemblyQualifiedName;
 
        public global::System.Reflection.TypeAttributes Attributes => (global::System.Reflection.TypeAttributes)(int)_underlyingType.Attributes;
 
        public ITypeSymbol? BaseType => _underlyingType.BaseType != null ? ResolveTypeSymbol(_underlyingType.BaseType) : null;
 
        public bool ContainsGenericParameters => _underlyingType.ContainsGenericParameters;
 
        public IMethodBaseSymbol? DeclaringMethod => _underlyingType.DeclaringMethod is MethodInfo m ? ResolveMethodSymbol(m) : null;
 
        public string? FullName => _underlyingType.FullName;
 
        public global::System.Reflection.GenericParameterAttributes GenericParameterAttributes => (global::System.Reflection.GenericParameterAttributes)(int)_underlyingType.GenericParameterAttributes;
 
        public int GenericParameterPosition => _underlyingType.GenericParameterPosition;
 
        public ITypeSymbol[] GenericTypeArguments => ResolveTypeSymbols(_underlyingType.GenericTypeArguments);
 
        public bool HasElementType => _underlyingType.HasElementType;
 
        public bool IsAbstract => _underlyingType.IsAbstract;
 
        public bool IsArray => _underlyingType.IsArray;
 
        public bool IsAutoLayout => _underlyingType.IsAutoLayout;
 
        public bool IsByRef => _underlyingType.IsByRef;
 
        public bool IsClass => _underlyingType.IsClass;
 
        public bool IsConstructedGenericType => _underlyingType.IsConstructedGenericType;
 
        public bool IsEnum => _underlyingType.IsEnum;
 
        public bool IsExplicitLayout => _underlyingType.IsExplicitLayout;
 
        public bool IsGenericParameter => _underlyingType.IsGenericParameter;
 
        public bool IsGenericType => _underlyingType.IsGenericType;
 
        public bool IsGenericTypeDefinition => _underlyingType.IsGenericTypeDefinition;
 
        public bool IsInterface => _underlyingType.IsInterface;
 
        public bool IsLayoutSequential => _underlyingType.IsLayoutSequential;
 
        public bool IsNested => _underlyingType.IsNested;
 
        public bool IsNestedAssembly => _underlyingType.IsNestedAssembly;
 
        public bool IsNestedFamANDAssem => _underlyingType.IsNestedFamANDAssem;
 
        public bool IsNestedFamORAssem => _underlyingType.IsNestedFamORAssem;
 
        public bool IsNestedFamily => _underlyingType.IsNestedFamily;
 
        public bool IsNestedPrivate => _underlyingType.IsNestedPrivate;
 
        public bool IsNestedPublic => _underlyingType.IsNestedPublic;
 
        public bool IsNotPublic => _underlyingType.IsNotPublic;
 
        public bool IsPointer => _underlyingType.IsPointer;
 
        public bool IsPrimitive => _underlyingType.IsPrimitive;
 
        public bool IsPublic => _underlyingType.IsPublic;
 
        public bool IsSealed => _underlyingType.IsSealed;
 
#pragma warning disable SYSLIB0050 // Type or member is obsolete
        public bool IsSerializable => _underlyingType.IsSerializable;
#pragma warning restore SYSLIB0050 // Type or member is obsolete
 
        public bool IsValueType => _underlyingType.IsValueType;
 
        public bool IsVisible => _underlyingType.IsVisible;
 
        public string? Namespace => _underlyingType.Namespace;
 
        public IConstructorSymbol? TypeInitializer => _underlyingType.TypeInitializer is ConstructorInfo ctor ? ResolveConstructorSymbol(ctor) : null;
 
        public int GetArrayRank()
        {
            return _underlyingType.GetArrayRank();
        }
 
        public IConstructorSymbol? GetConstructor(global::System.Reflection.BindingFlags bindingAttr, ITypeSymbol[] types)
        {
            return _underlyingType.GetConstructor((BindingFlags)bindingAttr, binder: null, UnpackTypeSymbols(types), modifiers: null) is ConstructorInfo ctor ? ResolveConstructorSymbol(ctor) : null;
        }
 
        public IConstructorSymbol? GetConstructor(ITypeSymbol[] types)
        {
            return _underlyingType.GetConstructor(UnpackTypeSymbols(types)) is ConstructorInfo ctor ? ResolveConstructorSymbol(ctor) : null;
        }
 
        public IConstructorSymbol[] GetConstructors()
        {
            return ResolveConstructorSymbols(_underlyingType.GetConstructors());
        }
 
        public IConstructorSymbol[] GetConstructors(global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveConstructorSymbols(_underlyingType.GetConstructors((BindingFlags)bindingAttr));
        }
 
        public IMemberSymbol[] GetDefaultMembers()
        {
            return ResolveMemberSymbols(_underlyingType.GetDefaultMembers());
        }
 
        public ITypeSymbol? GetElementType()
        {
            return _underlyingType.GetElementType() is Type t ? ResolveTypeSymbol(t) : null;
        }
 
        public string? GetEnumName(object value)
        {
            return _underlyingType.GetEnumName(value);
        }
 
        public string[] GetEnumNames()
        {
            return _underlyingType.GetEnumNames();
        }
 
        public ITypeSymbol GetEnumUnderlyingType()
        {
            return ResolveTypeSymbol(_underlyingType.GetEnumUnderlyingType());
        }
 
        public IEventSymbol? GetEvent(string name, global::System.Reflection.BindingFlags bindingAttr)
        {
            return _underlyingType.GetEvent(name, (BindingFlags)bindingAttr) is { } f ? ResolveEventSymbol(f) : null;
        }
 
        public IEventSymbol? GetEvent(string name)
        {
            return _underlyingType.GetEvent(name) is { } f ? ResolveEventSymbol(f) : null;
        }
 
        public IEventSymbol[] GetEvents()
        {
            return ResolveEventSymbols(_underlyingType.GetEvents());
        }
 
        public IEventSymbol[] GetEvents(global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveEventSymbols(_underlyingType.GetEvents((BindingFlags)bindingAttr));
        }
 
        public IFieldSymbol? GetField(string name)
        {
            return _underlyingType.GetField(name) is FieldInfo f ? ResolveFieldSymbol(f) : null;
        }
 
        public IFieldSymbol? GetField(string name, global::System.Reflection.BindingFlags bindingAttr)
        {
            return _underlyingType.GetField(name, (BindingFlags)bindingAttr) is FieldInfo f ? ResolveFieldSymbol(f) : null;
        }
 
        public IFieldSymbol[] GetFields()
        {
            return ResolveFieldSymbols(_underlyingType.GetFields());
        }
 
        public IFieldSymbol[] GetFields(global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveFieldSymbols(_underlyingType.GetFields((BindingFlags)bindingAttr));
        }
 
        public ITypeSymbol[] GetGenericArguments()
        {
            return ResolveTypeSymbols(_underlyingType.GetGenericArguments());
        }
 
        public ITypeSymbol[] GetGenericParameterConstraints()
        {
            return ResolveTypeSymbols(_underlyingType.GetGenericParameterConstraints());
        }
 
        public ITypeSymbol GetGenericTypeDefinition()
        {
            return ResolveTypeSymbol(_underlyingType.GetGenericTypeDefinition());
        }
 
        public ITypeSymbol? GetInterface(string name)
        {
            return _underlyingType.GetInterface(name) is { } i ? ResolveTypeSymbol(i) : null;
        }
 
        public ITypeSymbol? GetInterface(string name, bool ignoreCase)
        {
            return _underlyingType.GetInterface(name, ignoreCase) is { } i ? ResolveTypeSymbol(i) : null;
        }
 
        public InterfaceMapping GetInterfaceMap(ITypeSymbol interfaceType)
        {
            throw new NotImplementedException();
        }
 
        public ITypeSymbol[] GetInterfaces()
        {
            return ResolveTypeSymbols(_underlyingType.GetInterfaces());
        }
 
        public IMemberSymbol[] GetMember(string name)
        {
            return ResolveMemberSymbols(_underlyingType.GetMember(name));
        }
 
        public IMemberSymbol[] GetMember(string name, global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveMemberSymbols(_underlyingType.GetMember(name, (BindingFlags)bindingAttr));
        }
 
        public IMemberSymbol[] GetMember(string name, global::System.Reflection.MemberTypes type, global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveMemberSymbols(_underlyingType.GetMember(name, (MemberTypes)type, (BindingFlags)bindingAttr));
        }
 
        public IMemberSymbol[] GetMembers(global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveMemberSymbols(_underlyingType.GetMembers((BindingFlags)bindingAttr));
        }
 
        public IMemberSymbol[] GetMembers()
        {
            return ResolveMemberSymbols(_underlyingType.GetMembers());
        }
 
        public IMethodSymbol? GetMethod(string name, global::System.Reflection.BindingFlags bindingAttr)
        {
            return _underlyingType.GetMethod(name, (BindingFlags)bindingAttr) is { } m ? ResolveMethodSymbol(m) : null;
        }
 
        public IMethodSymbol? GetMethod(string name, global::System.Reflection.BindingFlags bindingAttr, ITypeSymbol[] types)
        {
            return _underlyingType.GetMethod(name, (BindingFlags)bindingAttr, null, UnpackTypeSymbols(types), null) is { } m ? ResolveMethodSymbol(m) : null;
        }
 
        public IMethodSymbol? GetMethod(string name, ITypeSymbol[] types)
        {
            return _underlyingType.GetMethod(name, UnpackTypeSymbols(types)) is { } m ? ResolveMethodSymbol(m) : null;
        }
 
        public IMethodSymbol? GetMethod(string name)
        {
            return _underlyingType.GetMethod(name) is { } m ? ResolveMethodSymbol(m) : null;
        }
 
        public IMethodSymbol? GetMethod(string name, ITypeSymbol[] types, global::System.Reflection.ParameterModifier[]? modifiers)
        {
            if (modifiers != null)
                throw new NotImplementedException();
 
            return _underlyingType.GetMethod(name, UnpackTypeSymbols(types), null) is { } m ? ResolveMethodSymbol(m) : null;
        }
 
        public IMethodSymbol[] GetMethods(global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveMethodSymbols(_underlyingType.GetMethods((BindingFlags)bindingAttr));
        }
 
        public IMethodSymbol[] GetMethods()
        {
            return ResolveMethodSymbols(_underlyingType.GetMethods());
        }
 
        public ITypeSymbol? GetNestedType(string name)
        {
            return _underlyingType.GetNestedType(name) is Type t ? ResolveTypeSymbol(t) : null;
        }
 
        public ITypeSymbol? GetNestedType(string name, global::System.Reflection.BindingFlags bindingAttr)
        {
            return _underlyingType.GetNestedType(name, (BindingFlags)bindingAttr) is Type t ? ResolveTypeSymbol(t) : null;
        }
 
        public ITypeSymbol[] GetNestedTypes()
        {
            return ResolveTypeSymbols(_underlyingType.GetNestedTypes());
        }
 
        public ITypeSymbol[] GetNestedTypes(global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolveTypeSymbols(_underlyingType.GetNestedTypes((BindingFlags)bindingAttr));
        }
 
        public IPropertySymbol[] GetProperties()
        {
            return ResolvePropertySymbols(_underlyingType.GetProperties());
        }
 
        public IPropertySymbol[] GetProperties(global::System.Reflection.BindingFlags bindingAttr)
        {
            return ResolvePropertySymbols(_underlyingType.GetProperties((BindingFlags)bindingAttr));
        }
 
        public IPropertySymbol? GetProperty(string name, ITypeSymbol? returnType, ITypeSymbol[] types, global::System.Reflection.ParameterModifier[]? modifiers)
        {
            if (modifiers != null)
                throw new NotImplementedException();
 
            var _returnType = returnType != null ? ((IkvmReflectionTypeSymbol)returnType).UnderlyingType : null;
            return _underlyingType.GetProperty(name, _returnType, UnpackTypeSymbols(types), null) is { } p ? ResolvePropertySymbol(p) : null;
        }
 
        public IPropertySymbol? GetProperty(string name, ITypeSymbol[] types)
        {
            return _underlyingType.GetProperty(name, UnpackTypeSymbols(types)) is { } p ? ResolvePropertySymbol(p) : null;
        }
 
        public IPropertySymbol? GetProperty(string name, ITypeSymbol? returnType, ITypeSymbol[] types)
        {
            var _returnType = returnType != null ? ((IkvmReflectionTypeSymbol)returnType).UnderlyingType : null;
            return _underlyingType.GetProperty(name, _returnType, UnpackTypeSymbols(types)) is { } p ? ResolvePropertySymbol(p) : null;
        }
 
        public IPropertySymbol? GetProperty(string name, global::System.Reflection.BindingFlags bindingAttr)
        {
            return _underlyingType.GetProperty(name, (BindingFlags)bindingAttr) is { } p ? ResolvePropertySymbol(p) : null;
        }
 
        public IPropertySymbol? GetProperty(string name)
        {
            return _underlyingType.GetProperty(name) is { } p ? ResolvePropertySymbol(p) : null;
        }
 
        public IPropertySymbol? GetProperty(string name, ITypeSymbol? returnType)
        {
            var _returnType = returnType != null ? ((IkvmReflectionTypeSymbol)returnType).UnderlyingType : null;
 
            return _underlyingType.GetProperty(name, _returnType) is { } p ? ResolvePropertySymbol(p) : null;
        }
 
        public bool IsAssignableFrom(ITypeSymbol? c)
        {
            return _underlyingType.IsAssignableFrom(c != null ? ((IkvmReflectionTypeSymbol)c).UnderlyingType : null);
        }
 
        public bool IsEnumDefined(object value)
        {
            return _underlyingType.IsEnumDefined(value);
        }
 
        public bool IsSubclassOf(ITypeSymbol c)
        {
            return _underlyingType.IsSubclassOf(((IkvmReflectionTypeSymbol)c).UnderlyingType);
        }
 
        public ITypeSymbol MakeArrayType()
        {
            if (_asSZArray == null)
                Interlocked.CompareExchange(ref _asSZArray, new IkvmReflectionTypeSymbol(Context, ContainingModule, _underlyingType.MakeArrayType()), null);
 
            return _asSZArray;
        }
 
        public ITypeSymbol MakeArrayType(int rank)
        {
            if (rank == 1)
                return MakeArrayType();
 
            if (_asArray == null)
                Interlocked.CompareExchange(ref _asArray, new IkvmReflectionTypeSymbol?[32], null);
 
            ref var asArray = ref _asArray[rank];
            if (asArray == null)
                Interlocked.CompareExchange(ref asArray, new IkvmReflectionTypeSymbol(Context, ContainingModule, _underlyingType.MakeArrayType(rank)), null);
 
            return asArray;
        }
 
        public ITypeSymbol MakeByRefType()
        {
            if (_asByRef == null)
                Interlocked.CompareExchange(ref _asByRef, new IkvmReflectionTypeSymbol(Context, ContainingModule, _underlyingType.MakeByRefType()), null);
 
            return _asByRef;
        }
 
        public ITypeSymbol MakeGenericType(params ITypeSymbol[] typeArguments)
        {
            throw new NotImplementedException();
        }
 
        public ITypeSymbol MakePointerType()
        {
            if (_asPointer == null)
                Interlocked.CompareExchange(ref _asPointer, new IkvmReflectionTypeSymbol(Context, ContainingModule, _underlyingType.MakePointerType()), null);
 
            return _asPointer;
        }
 
    }
 
}