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import { ISource } from "./source.ts";
/** * A SourceFileBag holds ISource */export class SourceFileBag extends Set<ISource> {  private static create(items: ISource[]): SourceFileBag {    const fileBag = new SourceFileBag();    if (items) {      for (const item of items) {        fileBag.add(item);      }    }    return fileBag;  }
  /**   * Merge this SourceFileBag with another   * @param other   * @returns A new SourceFileBag with the merged result   */  merge(other: SourceFileBag) {    const sources = new SourceFileBag();
    for (const source of this.values()) {      sources.add(source);    }
    for (const source of other.values()) {      sources.add(source);    }
    return sources;  }
  find(predicate: (file: ISource) => boolean) {    for (const source of this.values()) {      if (predicate(source)) {        return source;      }    }  }
  filter(predicate: (file: ISource) => boolean) {    const items: ISource[] = [];    for (const source of this.values()) {      if (predicate(source)) {        items.push(source);      }    }
    return SourceFileBag.create(items);  }
  toArray() {    return Array.from(this.values());  }}