diff options
| -rw-r--r-- | src/data/things/composite.js | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/data/things/composite.js b/src/data/things/composite.js index 51525bc1..c3b08f86 100644 --- a/src/data/things/composite.js +++ b/src/data/things/composite.js @@ -802,8 +802,8 @@ export function compositeFrom(description) { }); } - if (!compositionNests && !anyStepsCompute && !anyStepsTransform) { - aggregate.push(new TypeError(`Expected at least one step to compute or transform`)); + if (!compositionNests && !compositionUpdates && !anyStepsCompute) { + aggregate.push(new TypeError(`Expected at least one step to compute`)); } aggregate.close(); @@ -1241,8 +1241,10 @@ export function compositeFrom(description) { expose.cache = base.cacheComposition; } } else if (compositionUpdates) { - expose.transform = (value, dependencies) => - _wrapper(value, null, dependencies); + if (!empty(steps)) { + expose.transform = (value, dependencies) => + _wrapper(value, null, dependencies); + } } else { expose.compute = (dependencies) => _wrapper(noTransformSymbol, null, dependencies); |