API Reference

MapKeyOwnerResolver

Resolves key identifiers on Map contexts. Returns the Map if it has the given key.

Description

Checks that the context is a Map and that map.has(index) is true. Returns the Map on match, or null to pass to the next resolver.

Used for expressions like prices["pro"].net where the context is a Map and the index is a string key.

API

@Injectable()
export class MapKeyOwnerResolver implements IIdentifierOwnerResolver {
  public resolve(index: unknown, map: unknown): object | null;
}