Пример #1
0
        internal static bool EarlyDecodeDeprecatedOrObsoleteAttribute(
            ref EarlyDecodeWellKnownAttributeArguments <EarlyWellKnownAttributeBinder, NamedTypeSymbol, AttributeSyntax, AttributeLocation> arguments,
            out CSharpAttributeData attributeData,
            out ObsoleteAttributeData obsoleteData)
        {
            bool hasAnyDiagnostics;

            if (CSharpAttributeData.IsTargetEarlyAttribute(arguments.AttributeType, arguments.AttributeSyntax, AttributeDescription.ObsoleteAttribute))
            {
                attributeData = arguments.Binder.GetAttribute(arguments.AttributeSyntax, arguments.AttributeType, out hasAnyDiagnostics);
                if (!attributeData.HasErrors)
                {
                    obsoleteData = attributeData.DecodeObsoleteAttribute();
                    if (hasAnyDiagnostics)
                    {
                        attributeData = null;
                    }
                }
                else
                {
                    obsoleteData  = null;
                    attributeData = null;
                }

                return(true);
            }

            if (CSharpAttributeData.IsTargetEarlyAttribute(arguments.AttributeType, arguments.AttributeSyntax, AttributeDescription.DeprecatedAttribute))
            {
                attributeData = arguments.Binder.GetAttribute(arguments.AttributeSyntax, arguments.AttributeType, out hasAnyDiagnostics);
                if (!attributeData.HasErrors)
                {
                    obsoleteData = attributeData.DecodeDeprecatedAttribute();
                    if (hasAnyDiagnostics)
                    {
                        attributeData = null;
                    }
                }
                else
                {
                    obsoleteData  = null;
                    attributeData = null;
                }

                return(true);
            }

            obsoleteData  = null;
            attributeData = null;
            return(false);
        }