(
result: Record<string, unknown>,
overridableKeys: Set<string>,
keyTag: string | null,
keyNode: Record<PropertyKey, unknown> | unknown[] | string | null,
valueNode: unknown,
startLine?: number,
startPos?: number,
)
| 459 | } |
| 460 | } |
| 461 | storeMappingPair( |
| 462 | result: Record<string, unknown>, |
| 463 | overridableKeys: Set<string>, |
| 464 | keyTag: string | null, |
| 465 | keyNode: Record<PropertyKey, unknown> | unknown[] | string | null, |
| 466 | valueNode: unknown, |
| 467 | startLine?: number, |
| 468 | startPos?: number, |
| 469 | ): Record<string, unknown> { |
| 470 | // The output is a plain object here, so keys can only be strings. |
| 471 | // We need to convert keyNode to a string, but doing so can hang the process |
| 472 | // (deeply nested arrays that explode exponentially using aliases). |
| 473 | if (Array.isArray(keyNode)) { |
| 474 | keyNode = Array.prototype.slice.call(keyNode); |
| 475 | |
| 476 | for (let index = 0; index < keyNode.length; index++) { |
| 477 | if (Array.isArray(keyNode[index])) { |
| 478 | throw this.#createError( |
| 479 | "Cannot store mapping pair: nested arrays are not supported inside keys", |
| 480 | ); |
| 481 | } |
| 482 | |
| 483 | if (typeof keyNode === "object" && isPlainObject(keyNode[index])) { |
| 484 | keyNode[index] = "[object Object]"; |
| 485 | } |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | // Avoid code execution in load() via toString property |
| 490 | // (still use its own toString for arrays, timestamps, |
| 491 | // and whatever user schema extensions happen to have @@toStringTag) |
| 492 | if (typeof keyNode === "object" && isPlainObject(keyNode)) { |
| 493 | keyNode = "[object Object]"; |
| 494 | } |
| 495 | |
| 496 | keyNode = String(keyNode); |
| 497 | |
| 498 | if (keyTag === "tag:yaml.org,2002:merge") { |
| 499 | if (Array.isArray(valueNode)) { |
| 500 | for ( |
| 501 | let index = 0; |
| 502 | index < valueNode.length; |
| 503 | index++ |
| 504 | ) { |
| 505 | this.mergeMappings(result, valueNode[index], overridableKeys); |
| 506 | } |
| 507 | } else { |
| 508 | this.mergeMappings( |
| 509 | result, |
| 510 | valueNode as Record<string, unknown>, |
| 511 | overridableKeys, |
| 512 | ); |
| 513 | } |
| 514 | } else { |
| 515 | if ( |
| 516 | !this.allowDuplicateKeys && |
| 517 | !overridableKeys.has(keyNode) && |
| 518 | Object.hasOwn(result, keyNode) |
no test coverage detected