Function isDepthFreeField

javascript/packages/core/lib/gen/struct.ts:38–53

* Returns true when a field's read cannot recurse and needs no depth tracking. * Covers leaf scalars, typed arrays, and collections/maps whose elements are all leaf types.

(typeInfo: TypeInfo)

 * Covers leaf scalars, typed arrays, and collections/maps whose elements are all leaf types.
 */
function isDepthFreeField(typeInfo: TypeInfo): boolean {
  const id = typeInfo.typeId;
  if (TypeId.isLeafTypeId(id)) return true;
  // LIST / SET with leaf element type
  if (id === TypeId.LIST || id === TypeId.SET) {
    const inner = typeInfo.options?.inner;
    return !!inner && TypeId.isLeafTypeId(inner.typeId);
  }
  // MAP with leaf key and value types
  if (id === TypeId.MAP) {
    const key = typeInfo.options?.key;
    const value = typeInfo.options?.value;
    return !!key && !!value && TypeId.isLeafTypeId(key.typeId) && TypeId.isLeafTypeId(value.typeId);
  }
  return false;
}

function compatibleReadTargetExpr(typeInfo: TypeInfo, expr: string): string {
  const action = getCompatibleCollectionArrayReadAction(typeInfo);