Function NewPartialObject

pkg/util/json/json.go:477–506

NewPartialObject creates a PartialObject with the specified base key-value pairs, and allows for setting the values of newKeys when building the final JSON object.

(base map[string]JSON, newKeys []string)

// pairs, and allows for setting the values of newKeys when building the final
// JSON object.
func NewPartialObject(base map[string]JSON, newKeys []string) (*PartialObject, error) {
	// Check that newKeys are unique and disjoint from base keys.
	newKeySet := make(map[string]struct{}, len(newKeys))
	for _, k := range newKeys {
		if _, ok := newKeySet[k]; ok {
			return nil, errors.AssertionFailedf("expected unique keys, found %v", newKeys)
		}
		if _, ok := base[k]; ok {
			return nil, errors.AssertionFailedf("expected new keys to be disjoint from base keys, found %v in both", k)
		}
		newKeySet[k] = struct{}{}
	}

	keys := slices.Collect(maps.Keys(base))
	keys = append(keys, newKeys...)
	sort.Strings(keys)

	pairs := make([]jsonKeyValuePair, 0, len(base))
	keyOrd := make(map[string]int, len(keys))

	for i, k := range keys {
		keyOrd[k] = i
		if _, ok := base[k]; !ok {
			continue
		}
		pairs = append(pairs, jsonKeyValuePair{k: jsonString(k), v: base[k]})
	}

	return &PartialObject{basePairs: pairs, keyOrd: keyOrd, allowedNewKeys: newKeySet}, nil
}

// NewObject creates a new JSON object with the specified new key-values. The
// keys of newData must be exactly the same as the newKeys supplied to the