map-transform-cjs/dist/operations/filter.cjs.map

MapTransform with CJS support

{"version":3,"sources":["../../src/operations/filter.ts","../../src/utils/stateHelpers.ts"],"sourcesContent":["import type {\n  Operation,\n  DataMapperWithOptions,\n  AsyncDataMapperWithOptions,\n  DataMapperWithState,\n  AsyncDataMapperWithState,\n  State,\n} from '../types.js'\nimport { getStateValue, setStateValue } from '../utils/stateHelpers.js'\n\n// Filters an array with the provided filter function, or returns the single\n// value if it passes the filter.\nasync function filterValue(\n  values: unknown,\n  filterFn: DataMapperWithState | AsyncDataMapperWithState,\n  state: State,\n) {\n  if (Array.isArray(values)) {\n    const results = []\n    for (const value of values) {\n      if (await filterFn(value, state)) {\n        results.push(value)\n      }\n    }\n    return results\n  } else {\n    const result = await filterFn(values, state)\n    return result ? values : undefined\n  }\n}\n\n/**\n * Given a filter function, returns an operation that will filter arrays or\n * single values with that filter function.\n */\nexport default function filter(\n  fn: DataMapperWithOptions | AsyncDataMapperWithOptions,\n): Operation {\n  return (options) => (next) => {\n    if (typeof fn !== 'function') {\n      return async (state) => await next(state)\n    }\n    const fnWithOptions = fn(options)\n\n    return async (state) => {\n      const nextState = await next(state)\n      return setStateValue(\n        nextState,\n        await filterValue(getStateValue(nextState), fnWithOptions, nextState),\n      )\n    }\n  }\n}\n","import xor from './xor.js'\nimport type { State, InitialState } from '../types.js'\n\n// Context\n\nexport const getLastContext = (state: State) =>\n  state.context[state.context.length - 1]\n\nexport const removeLastContext = (state: State) => ({\n  ...state,\n  context: state.context.slice(0, -1),\n})\n\nexport const pushContext = (state: State, value: unknown) => ({\n  ...state,\n  context: [...state.context, value],\n})\n\nexport const popContext = (state: State) => ({\n  ...state,\n  context: state.context.slice(0, -1),\n  value: state.context[state.context.length - 1],\n})\n\n// Root\n\nexport const getRootFromState = (state: State) =>\n  state.context.length === 0 ? state.value : state.context[0]\n\n// Target\n\nexport const getTargetFromState = (state: State) => state.target\n\nexport function setTargetOnState(state: State, target: unknown): State {\n  return {\n    ...state,\n    target,\n  }\n}\n\n// State value\n\nexport const setStateValue = (\n  { untouched, ...state }: State, // Clear untouched every time we set a value\n  value: unknown,\n  shouldPushContext = false,\n): State =>\n  shouldPushContext\n    ? {\n        ...pushContext(state, state.value),\n        value,\n      }\n    : { ...state, value }\n\nexport const getStateValue = (state: State): unknown => state.value\n\nexport const setValueFromState = (\n  state: State,\n  { value }: State,\n  shouldPushContext = false,\n): State => setStateValue(state, value, shouldPushContext)\n\nexport const isNonvalue = (\n  value: unknown,\n  nonvalues: unknown[] = [undefined],\n) => nonvalues.includes(value)\n\nexport const isNonvalueState = (\n  state: State,\n  nonvalues: unknown[] = [undefined],\n) => isNonvalue(state.value, nonvalues)\n\nexport const markAsUntouched = (state: State) => ({ ...state, untouched: true })\nexport const clearUntouched = ({ untouched, ...state }: State) => state\nexport const isUntouched = ({ untouched }: State) => !!untouched\n\n// State\n\nexport const populateState = (\n  data: unknown,\n  { rev = false, noDefaults = false, target = undefined }: InitialState,\n): State => ({\n  context: [],\n  value: data,\n  target,\n  rev,\n  noDefaults,\n})\n\nexport const goForward = (state: State) =>\n  state.rev || state.flip\n    ? {\n        ...state,\n        rev: false,\n        flip: false,\n      }\n    : state\n\nexport const flipState = (state: State, flip = true) => ({\n  ...state,\n  flip: xor(state.flip, flip),\n})\n\nexport const stopIteration = (state: State) => ({ ...state, iterate: false })\n\nexport const noopNext = async (state: State) => state\n\nexport const revFromState = (state: State, flip = false) =>\n  flip ? xor(state.rev, !state.flip) : xor(state.rev, state.flip)\n"],"mappings":";;;;;;;;;;;;;;;;;;;;AAAA;AAAA;AAAA;AAAA;AAAA;;;ACaO,IAAM,cAAc,CAAC,OAAc,WAAoB;AAAA,EAC5D,GAAG;AAAA,EACH,SAAS,CAAC,GAAG,MAAM,SAAS,KAAK;AACnC;AA0BO,IAAM,gBAAgB,CAC3B,EAAE,WAAW,GAAG,MAAM,GACtB,OACA,oBAAoB,UAEpB,oBACI;AAAA,EACE,GAAG,YAAY,OAAO,MAAM,KAAK;AAAA,EACjC;AACF,IACA,EAAE,GAAG,OAAO,MAAM;AAEjB,IAAM,gBAAgB,CAAC,UAA0B,MAAM;;;AD1C9D,eAAe,YACb,QACA,UACA,OACA;AACA,MAAI,MAAM,QAAQ,MAAM,GAAG;AACzB,UAAM,UAAU,CAAC;AACjB,eAAW,SAAS,QAAQ;AAC1B,UAAI,MAAM,SAAS,OAAO,KAAK,GAAG;AAChC,gBAAQ,KAAK,KAAK;AAAA,MACpB;AAAA,IACF;AACA,WAAO;AAAA,EACT,OAAO;AACL,UAAM,SAAS,MAAM,SAAS,QAAQ,KAAK;AAC3C,WAAO,SAAS,SAAS;AAAA,EAC3B;AACF;AAMe,SAAR,OACL,IACW;AACX,SAAO,CAAC,YAAY,CAAC,SAAS;AAC5B,QAAI,OAAO,OAAO,YAAY;AAC5B,aAAO,OAAO,UAAU,MAAM,KAAK,KAAK;AAAA,IAC1C;AACA,UAAM,gBAAgB,GAAG,OAAO;AAEhC,WAAO,OAAO,UAAU;AACtB,YAAM,YAAY,MAAM,KAAK,KAAK;AAClC,aAAO;AAAA,QACL;AAAA,QACA,MAAM,YAAY,cAAc,SAAS,GAAG,eAAe,SAAS;AAAA,MACtE;AAAA,IACF;AAAA,EACF;AACF;","names":[]}