platform_functions_relation.relation.functions.s.pure Maven / Gradle / Ivy

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// Copyright 2023 Goldman Sachs
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

function meta::pure::functions::relation::s(a:Any[0..1]):String[1]
{
  if ($a->isEmpty(),|'null',|$a->toOne()->toString());
}