Function printDocToDebug

src/document/debug.js:65–222

(doc)

}

function printDocToDebug(doc) {
  /** @type Record<symbol, string> */
  const printedSymbols = Object.create(null);
  /** @type Set<string> */
  const usedKeysForSymbols = new Set();
  return printDoc(flattenDoc(doc));

  function printDoc(doc, index, parentParts) {
    if (typeof doc === "string") {
      return JSON.stringify(doc);
    }

    if (Array.isArray(doc)) {
      const printed = doc.map(printDoc).filter(Boolean);
      return printed.length === 1 ? printed[0] : `[${printed.join(", ")}]`;
    }

    if (doc.type === DOC_TYPE_LINE) {
      const withBreakParent =
        parentParts?.[index + 1]?.type === DOC_TYPE_BREAK_PARENT;
      if (doc.literal) {
        return withBreakParent
          ? "literalline"
          : "literallineWithoutBreakParent";
      }
      if (doc.hard) {
        return withBreakParent ? "hardline" : "hardlineWithoutBreakParent";
      }
      if (doc.soft) {
        return "softline";
      }
      return "line";
    }

    if (doc.type === DOC_TYPE_BREAK_PARENT) {
      const afterHardline =
        parentParts?.[index - 1]?.type === DOC_TYPE_LINE &&
        parentParts[index - 1].hard;
      return afterHardline ? undefined : "breakParent";
    }

    if (doc.type === DOC_TYPE_TRIM) {
      return "trim";
    }

    if (doc.type === DOC_TYPE_INDENT) {
      return "indent(" + printDoc(doc.contents) + ")";
    }

    if (doc.type === DOC_TYPE_ALIGN) {
      return doc.n === Number.NEGATIVE_INFINITY
        ? "dedentToRoot(" + printDoc(doc.contents) + ")"
        : doc.n < 0
          ? "dedent(" + printDoc(doc.contents) + ")"
          : doc.n.type === "root"
            ? "markAsRoot(" + printDoc(doc.contents) + ")"
            : "align(" +
              JSON.stringify(doc.n) +