Function applyReferentialEqualityAnnotations

src/plainer.ts:81–115

(
  plain: any,
  annotations: ReferentialEqualityAnnotations,
  version: number
)

}

export function applyReferentialEqualityAnnotations(
  plain: any,
  annotations: ReferentialEqualityAnnotations,
  version: number
) {
  const legacyPaths = enableLegacyPaths(version);
  function apply(identicalPaths: string[], path: string) {
    const object = getDeep(plain, parsePath(path, legacyPaths));

    identicalPaths
      .map(path => parsePath(path, legacyPaths))
      .forEach(identicalObjectPath => {
        plain = setDeep(plain, identicalObjectPath, () => object);
      });
  }

  if (isArray(annotations)) {
    const [root, other] = annotations;
    root.forEach(identicalPath => {
      plain = setDeep(
        plain,
        parsePath(identicalPath, legacyPaths),
        () => plain
      );
    });

    if (other) {
      forEach(other, apply);
    }
  } else {
    forEach(annotations, apply);
  }

  return plain;
}

const isDeep = (object: any, superJson: SuperJSON): boolean =>
  isPlainObject(object) ||