AST.DeclnSpecs.GetStorageClass C# (CSharp) Метод

        public StorageClass GetStorageClass() {
            if (this.StorageClsSpecs.Count == 0) {
                return StorageClass.AUTO;
            }

            if (this.StorageClsSpecs.Count == 1) {
                switch (this.StorageClsSpecs[0]) {
                    case StorageClsSpec.AUTO:
                    case StorageClsSpec.NULL:
                    case StorageClsSpec.REGISTER:
                        return StorageClass.AUTO;

                    case StorageClsSpec.EXTERN:
                        return StorageClass.EXTERN;

                    case StorageClsSpec.STATIC:
                        return StorageClass.STATIC;

                    case StorageClsSpec.TYPEDEF:
                        return StorageClass.TYPEDEF;

                    default:
                        throw new InvalidOperationException();
                }
            }

            throw new InvalidOperationException("Multiple storage class specifiers.");
        }