FVariantValueDeltaOperation<K extends FVariantConstraint, E extends FVariant, V, D extends Delta>.remove constructor

FVariantValueDeltaOperation<K extends FVariantConstraint, E extends FVariant, V, D extends Delta>.remove(Set<K> constraints)

Removes exact constraints from existing variants.

Unlike FVariantValueDeltaOperation.removeMatch, this removes exact entries rather than matching existing variants.

// Given {a: 1, b: 2, c: 3}
.remove({a, b}) // {c: 3}

See also:

• FVariantValueDeltaOperation.removeMatch for removing variants whose constraint's variants are all present.
• FVariantValueDeltaOperation.removeAll for removing all variants.

Implementation

FVariantValueDeltaOperation.remove(Set<K> constraints)
  : _call = ((base, existing) => .raw(base, {
      for (final MapEntry(key: constraint, :value) in existing.entries)
        if (!constraints.contains(constraint)) constraint: value,
    }));