Method readFlowCollection

yaml/_loader_state.ts:885–1014

(
    tag: string | null,
    anchor: string | null,
    nodeIndent: number,
  )

    );
  }
  readFlowCollection(
    tag: string | null,
    anchor: string | null,
    nodeIndent: number,
  ): State | void {
    let ch = this.#scanner.peek();
    let terminator: number;
    let isMapping = true;
    let result = {};
    if (ch === LEFT_SQUARE_BRACKET) {
      terminator = RIGHT_SQUARE_BRACKET;
      isMapping = false;
      result = [];
    } else if (ch === LEFT_CURLY_BRACKET) {
      terminator = RIGHT_CURLY_BRACKET;
    } else {
      return;
    }

    if (anchor !== null) this.anchorMap.set(anchor, result);

    this.#scanner.next();
    ch = this.#scanner.peek();

    let readNext = true;
    let valueNode = null;
    let keyNode = null;
    let keyTag: string | null = null;
    let isExplicitPair = false;
    let isPair = false;
    let following = 0;
    let line = 0;
    const overridableKeys = new Set<string>();
    while (ch !== 0) {
      this.skipSeparationSpace(true, nodeIndent);

      ch = this.#scanner.peek();

      if (ch === terminator) {
        this.#scanner.next();
        const kind = isMapping ? "mapping" : "sequence";
        return { tag, anchor, kind, result };
      }
      if (!readNext) {
        throw this.#createError(
          "Cannot read flow collection: missing comma between flow collection entries",
        );
      }

      keyTag = keyNode = valueNode = null;
      isPair = isExplicitPair = false;

      if (ch === QUESTION) {
        following = this.#scanner.peek(1);

        if (isWhiteSpaceOrEOL(following)) {
          isPair = isExplicitPair = true;
          this.#scanner.next();