import { isSeq, isPair, isMap } from '../../nodes/identity.js'; import { Pair, createPair } from '../../nodes/Pair.js'; import { Scalar } from '../../nodes/Scalar.js'; import { YAMLSeq } from '../../nodes/YAMLSeq.js'; function resolvePairs(seq, onError) { if (isSeq(seq)) { for (let i = 0; i < seq.items.length; ++i) { let item = seq.items[i]; if (isPair(item)) continue; else if (isMap(item)) { if (item.items.length > 1) onError('Each pair must have its own sequence indicator'); const pair = item.items[0] || new Pair(new Scalar(null)); if (item.commentBefore) pair.key.commentBefore = pair.key.commentBefore ? `${item.commentBefore}\n${pair.key.commentBefore}` : item.commentBefore; if (item.comment) { const cn = pair.value ?? pair.key; cn.comment = cn.comment ? `${item.comment}\n${cn.comment}` : item.comment; } item = pair; } seq.items[i] = isPair(item) ? item : new Pair(item); } } else onError('Expected a sequence for this tag'); return seq; } function createPairs(schema, iterable, ctx) { const { replacer } = ctx; const pairs = new YAMLSeq(schema); pairs.tag = 'tag:yaml.org,2002:pairs'; let i = 0; if (iterable && Symbol.iterator in Object(iterable)) for (let it of iterable) { if (typeof replacer === 'function') it = replacer.call(iterable, String(i++), it); let key, value; if (Array.isArray(it)) { if (it.length === 2) { key = it[0]; value = it[1]; } else throw new TypeError(`Expected [key, value] tuple: ${it}`); } else if (it && it instanceof Object) { const keys = Object.keys(it); if (keys.length === 1) { key = keys[0]; value = it[key]; } else throw new TypeError(`Expected { key: value } tuple: ${it}`); } else { key = it; } pairs.items.push(createPair(key, value, ctx)); } return pairs; } const pairs = { collection: 'seq', default: false, tag: 'tag:yaml.org,2002:pairs', resolve: resolvePairs, createNode: createPairs }; export { createPairs, pairs, resolvePairs };