/// <summary>
///
/// </summary>
/// <param name="symbolType">Can be a <see cref="INamedTypeSymbol"></see> or <see cref="IMethodSymbol"/>/></param>
/// <param name="declarationSyntax">Can be a <see cref="ClassDeclarationSyntax"/>
/// or <see cref="MethodDeclarationSyntax"/> or <see cref="DelegateDeclarationSyntax"/></param>
public static dynamic CopyGenericConstraints(dynamic symbolType, dynamic declarationSyntax)
{
if (!IsGenericType(symbolType))
{
return(declarationSyntax);
}
foreach (ITypeParameterSymbol typeParameter in GetTypeParameters(symbolType))
{
if (!HasConstraints(typeParameter))
{
continue;
}
TypeParameterConstraintClauseSyntax constraintSyntax = SF.TypeParameterConstraintClause(typeParameter.Name);
if (typeParameter.HasReferenceTypeConstraint)
{
constraintSyntax = constraintSyntax.AddConstraints(SF.ClassOrStructConstraint(SyntaxKind.ClassConstraint));
}
if (typeParameter.HasValueTypeConstraint)
{
constraintSyntax = constraintSyntax.AddConstraints(SF.ClassOrStructConstraint(SyntaxKind.StructConstraint));
}
IEnumerable <TypeParameterConstraintSyntax> typeConstraints =
typeParameter.ConstraintTypes.Select(symbol => SF.TypeConstraint(SF.IdentifierName(symbol.GetFullyQualifiedName())));
constraintSyntax = constraintSyntax.AddConstraints(typeConstraints.ToArray());
if (typeParameter.HasConstructorConstraint)
{
constraintSyntax = constraintSyntax.AddConstraints(SF.ConstructorConstraint());
}
declarationSyntax =
declarationSyntax.AddConstraintClauses(constraintSyntax);
}
return(declarationSyntax);
}
