Class Break

core/src/main/java/com/google/googlejavaformat/Doc.java:559–695

A leaf node in a Doc for an optional break.

  /** A leaf node in a {@link Doc} for an optional break. */
  public static final class Break extends Doc implements Op {
    private final FillMode fillMode;
    private final String flat;
    private final Indent plusIndent;
    private final Optional<BreakTag> optTag;

    private Break(FillMode fillMode, String flat, Indent plusIndent, Optional<BreakTag> optTag) {
      this.fillMode = fillMode;
      this.flat = flat;
      this.plusIndent = plusIndent;
      this.optTag = optTag;
    }

    /**
     * Make a {@code Break}.
     *
     * @param fillMode the {@link FillMode}
     * @param flat the text when not broken
     * @param plusIndent extra indent if taken
     * @return the new {@code Break}
     */
    public static Break make(FillMode fillMode, String flat, Indent plusIndent) {
      return new Break(fillMode, flat, plusIndent, /* optTag= */ Optional.empty());
    }

    /**
     * Make a {@code Break}.
     *
     * @param fillMode the {@link FillMode}
     * @param flat the text when not broken
     * @param plusIndent extra indent if taken
     * @param optTag an optional tag for remembering whether the break was taken
     * @return the new {@code Break}
     */
    public static Break make(
        FillMode fillMode, String flat, Indent plusIndent, Optional<BreakTag> optTag) {
      return new Break(fillMode, flat, plusIndent, optTag);
    }

    /**
     * Make a forced {@code Break}.
     *
     * @return the new forced {@code Break}
     */
    public static Break makeForced() {
      return make(FillMode.FORCED, "", Indent.Const.ZERO);
    }

    /**
     * Return the {@code Break}'s extra indent.
     *
     * @return the extra indent
     */
    int getPlusIndent() {
      return plusIndent.eval();
    }

    /**