| 1 | {"version":3,"file":"iterator-9fc627c1.cjs","sources":["../iterator.js"],"sourcesContent":["/**\n * Utility module to create and manipulate Iterators.\n *\n * @module iterator\n */\n\n/**\n * @template T,R\n * @param {Iterator<T>} iterator\n * @param {function(T):R} f\n * @return {IterableIterator<R>}\n */\nexport const mapIterator = (iterator, f) => ({\n [Symbol.iterator] () {\n return this\n },\n // @ts-ignore\n next () {\n const r = iterator.next()\n return { value: r.done ? undefined : f(r.value), done: r.done }\n }\n})\n\n/**\n * @template T\n * @param {function():IteratorResult<T>} next\n * @return {IterableIterator<T>}\n */\nexport const createIterator = next => ({\n /**\n * @return {IterableIterator<T>}\n */\n [Symbol.iterator] () {\n return this\n },\n // @ts-ignore\n next\n})\n\n/**\n * @template T\n * @param {Iterator<T>} iterator\n * @param {function(T):boolean} filter\n */\nexport const iteratorFilter = (iterator, filter) => createIterator(() => {\n let res\n do {\n res = iterator.next()\n } while (!res.done && !filter(res.value))\n return res\n})\n\n/**\n * @template T,M\n * @param {Iterator<T>} iterator\n * @param {function(T):M} fmap\n */\nexport const iteratorMap = (iterator, fmap) => createIterator(() => {\n const { done, value } = iterator.next()\n return { done, value: done ? undefined : fmap(value) }\n})\n"],"names":[],"mappings":";;AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACY,MAAC,WAAW,GAAG,CAAC,QAAQ,EAAE,CAAC,MAAM;AAC7C,EAAE,CAAC,MAAM,CAAC,QAAQ,EAAE,GAAG;AACvB,IAAI,OAAO,IAAI;AACf,GAAG;AACH;AACA,EAAE,IAAI,CAAC,GAAG;AACV,IAAI,MAAM,CAAC,GAAG,QAAQ,CAAC,IAAI,GAAE;AAC7B,IAAI,OAAO,EAAE,KAAK,EAAE,CAAC,CAAC,IAAI,GAAG,SAAS,GAAG,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,EAAE,IAAI,EAAE,CAAC,CAAC,IAAI,EAAE;AACnE,GAAG;AACH,CAAC,EAAC;AACF;AACA;AACA;AACA;AACA;AACA;AACY,MAAC,cAAc,GAAG,IAAI,KAAK;AACvC;AACA;AACA;AACA,EAAE,CAAC,MAAM,CAAC,QAAQ,EAAE,GAAG;AACvB,IAAI,OAAO,IAAI;AACf,GAAG;AACH;AACA,EAAE,IAAI;AACN,CAAC,EAAC;AACF;AACA;AACA;AACA;AACA;AACA;AACY,MAAC,cAAc,GAAG,CAAC,QAAQ,EAAE,MAAM,KAAK,cAAc,CAAC,MAAM;AACzE,EAAE,IAAI,IAAG;AACT,EAAE,GAAG;AACL,IAAI,GAAG,GAAG,QAAQ,CAAC,IAAI,GAAE;AACzB,GAAG,QAAQ,CAAC,GAAG,CAAC,IAAI,IAAI,CAAC,MAAM,CAAC,GAAG,CAAC,KAAK,CAAC,CAAC;AAC3C,EAAE,OAAO,GAAG;AACZ,CAAC,EAAC;AACF;AACA;AACA;AACA;AACA;AACA;AACY,MAAC,WAAW,GAAG,CAAC,QAAQ,EAAE,IAAI,KAAK,cAAc,CAAC,MAAM;AACpE,EAAE,MAAM,EAAE,IAAI,EAAE,KAAK,EAAE,GAAG,QAAQ,CAAC,IAAI,GAAE;AACzC,EAAE,OAAO,EAAE,IAAI,EAAE,KAAK,EAAE,IAAI,GAAG,SAAS,GAAG,IAAI,CAAC,KAAK,CAAC,EAAE;AACxD,CAAC;;;;;;;;;;;;;;;;"} |