|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#nullable disable
using System.Collections.Immutable;
using System.Diagnostics;
namespace Microsoft.CodeAnalysis.CSharp.Symbols.PublicModel
{
internal sealed class TypeParameterSymbol : TypeSymbol, ITypeParameterSymbol
{
private readonly Symbols.TypeParameterSymbol _underlying;
public TypeParameterSymbol(Symbols.TypeParameterSymbol underlying, CodeAnalysis.NullableAnnotation nullableAnnotation)
: base(nullableAnnotation)
{
Debug.Assert(underlying is object);
_underlying = underlying;
}
protected override ITypeSymbol WithNullableAnnotation(CodeAnalysis.NullableAnnotation nullableAnnotation)
{
Debug.Assert(nullableAnnotation != _underlying.DefaultNullableAnnotation);
Debug.Assert(nullableAnnotation != this.NullableAnnotation);
return new TypeParameterSymbol(_underlying, nullableAnnotation);
}
internal override Symbols.TypeSymbol UnderlyingTypeSymbol => _underlying;
internal override CSharp.Symbol UnderlyingSymbol => _underlying;
internal override Symbols.NamespaceOrTypeSymbol UnderlyingNamespaceOrTypeSymbol => _underlying;
internal Symbols.TypeParameterSymbol UnderlyingTypeParameterSymbol => _underlying;
CodeAnalysis.NullableAnnotation ITypeParameterSymbol.ReferenceTypeConstraintNullableAnnotation =>
_underlying.ReferenceTypeConstraintIsNullable switch
{
false when !_underlying.HasReferenceTypeConstraint => CodeAnalysis.NullableAnnotation.None,
false => CodeAnalysis.NullableAnnotation.NotAnnotated,
true => CodeAnalysis.NullableAnnotation.Annotated,
null => CodeAnalysis.NullableAnnotation.None,
};
TypeParameterKind ITypeParameterSymbol.TypeParameterKind
{
get
{
return _underlying.TypeParameterKind;
}
}
IMethodSymbol ITypeParameterSymbol.DeclaringMethod
{
get { return _underlying.DeclaringMethod.GetPublicSymbol(); }
}
INamedTypeSymbol ITypeParameterSymbol.DeclaringType
{
get { return _underlying.DeclaringType.GetPublicSymbol(); }
}
ImmutableArray<ITypeSymbol> ITypeParameterSymbol.ConstraintTypes
{
get
{
return _underlying.ConstraintTypesNoUseSiteDiagnostics.GetPublicSymbols();
}
}
ImmutableArray<CodeAnalysis.NullableAnnotation> ITypeParameterSymbol.ConstraintNullableAnnotations =>
_underlying.ConstraintTypesNoUseSiteDiagnostics.ToPublicAnnotations();
ITypeParameterSymbol ITypeParameterSymbol.OriginalDefinition
{
get { return _underlying.OriginalDefinition.GetPublicSymbol(); }
}
ITypeParameterSymbol ITypeParameterSymbol.ReducedFrom
{
get { return _underlying.ReducedFrom.GetPublicSymbol(); }
}
int ITypeParameterSymbol.Ordinal => _underlying.Ordinal;
VarianceKind ITypeParameterSymbol.Variance => _underlying.Variance;
bool ITypeParameterSymbol.HasReferenceTypeConstraint => _underlying.HasReferenceTypeConstraint;
bool ITypeParameterSymbol.HasValueTypeConstraint => _underlying.HasValueTypeConstraint;
bool ITypeParameterSymbol.AllowsRefLikeType => _underlying.AllowsRefLikeType;
bool ITypeParameterSymbol.HasUnmanagedTypeConstraint => _underlying.HasUnmanagedTypeConstraint;
bool ITypeParameterSymbol.HasNotNullConstraint => _underlying.HasNotNullConstraint;
bool ITypeParameterSymbol.HasConstructorConstraint => _underlying.HasConstructorConstraint;
#region ISymbol Members
protected override void Accept(SymbolVisitor visitor)
{
visitor.VisitTypeParameter(this);
}
protected override TResult Accept<TResult>(SymbolVisitor<TResult> visitor)
{
return visitor.VisitTypeParameter(this);
}
protected override TResult Accept<TArgument, TResult>(SymbolVisitor<TArgument, TResult> visitor, TArgument argument)
{
return visitor.VisitTypeParameter(this, argument);
}
#endregion
}
}
|