@ngxs/store/fesm2022/ngxs-store-operators.mjs.map

{"version":3,"file":"ngxs-store-operators.mjs","sources":["../../../packages/store/operators/src/utils.ts","../../../packages/store/operators/src/append.ts","../../../packages/store/operators/src/compose.ts","../../../packages/store/operators/src/iif.ts","../../../packages/store/operators/src/insert-item.ts","../../../packages/store/operators/src/patch.ts","../../../packages/store/operators/src/update-item.ts","../../../packages/store/operators/src/remove-item.ts","../../../packages/store/operators/src/index.ts","../../../packages/store/operators/src/ngxs-store-operators.ts"],"sourcesContent":["import { StateOperator } from './types';\n\nexport const isArray = Array.isArray;\n\nexport type Predicate<T = any> = (value: T | Readonly<T>) => boolean;\n\nconst isFunction = (value: unknown) => typeof value == 'function';\n\nexport const isStateOperator = isFunction as <T>(\n  value: T | StateOperator<T>\n) => value is StateOperator<T>;\n\nexport const isPredicate = isFunction as <T>(\n  value: Predicate<T> | boolean | number\n) => value is Predicate<T>;\n\nexport const isNumber = (value: unknown): value is number => typeof value === 'number';\n\nexport const invalidIndex = (index: number) => Number.isNaN(index) || index === -1;\n","import { ExistingState, NoInfer, StateOperator } from './types';\nimport { isArray } from './utils';\n\n/**\n * @param items - Specific items to append to the end of an array\n */\nexport function append<T>(items: NoInfer<T[]>): StateOperator<T[]> {\n  return function appendOperator(existing: ExistingState<T[]>): T[] {\n    // If `items` is `undefined` or `null` or `[]` but `existing` is provided\n    // just return `existing`\n    const itemsNotProvidedButExistingIs = (!items || !items.length) && existing;\n    if (itemsNotProvidedButExistingIs) {\n      return existing as unknown as T[];\n    }\n\n    if (isArray(existing)) {\n      return existing.concat(items as unknown as ExistingState<T[]>);\n    }\n\n    // For example if some property is added dynamically\n    // and didn't exist before thus it's not `ArrayLike`\n    return items as unknown as T[];\n  };\n}\n","import { ExistingState, NoInfer, StateOperator } from './types';\n\nexport function compose<T>(...operators: NoInfer<StateOperator<T>[]>): StateOperator<T> {\n  return function composeOperator(existing: ExistingState<T>): T {\n    return operators.reduce(\n      (accumulator, operator) => operator(accumulator as ExistingState<T>),\n      existing as T\n    );\n  };\n}\n","import { ExistingState, NoInfer, StateOperator } from './types';\n\nimport { isStateOperator, isPredicate, Predicate } from './utils';\n\nfunction retrieveValue<T>(\n  operatorOrValue: StateOperator<T> | T,\n  existing: ExistingState<T>\n): T {\n  // If state operator is a function\n  // then call it with an original value\n  if (isStateOperator(operatorOrValue)) {\n    const value = operatorOrValue(existing);\n    return value as T;\n  }\n\n  // If operator or value was not provided\n  // e.g. `elseOperatorOrValue` is `undefined`\n  // then we just return an original value\n  if (operatorOrValue === undefined) {\n    return existing as T;\n  }\n\n  return operatorOrValue as T;\n}\n\n/**\n * @param condition - Condition can be a plain boolean value or a function,\n * that returns boolean, also this function can take a value as an argument\n * to which this state operator applies\n * @param trueOperatorOrValue - Any value or a state operator\n * @param elseOperatorOrValue - Any value or a state operator\n */\nexport function iif<T>(\n  condition: NoInfer<Predicate<T>> | boolean,\n  trueOperatorOrValue: NoInfer<StateOperator<T> | T>,\n  elseOperatorOrValue?: NoInfer<StateOperator<T> | T>\n): StateOperator<T> {\n  return function iifOperator(existing: ExistingState<T>): T {\n    // Convert the value to a boolean\n    let result = !!condition;\n    // but if it is a function then run it to get the result\n    if (isPredicate(condition)) {\n      result = condition(existing as T);\n    }\n\n    if (result) {\n      return retrieveValue<T>(trueOperatorOrValue as StateOperator<T> | T, existing);\n    }\n\n    return retrieveValue<T>(elseOperatorOrValue! 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> 0) {\n      index = beforePosition!;\n    }\n\n    clone.splice(index, 0, value as unknown as T);\n    return clone;\n  };\n}\n","import { ExistingState, NoInfer, StateOperator } from './types';\nimport { isStateOperator } from './utils';\n\ntype NotUndefined<T> = T extends undefined ? never : T;\n\nexport type ɵPatchSpec<T> = { [P in keyof T]?: T[P] | StateOperator<NotUndefined<T[P]>> };\n\nexport function patch<T extends Record<string, any>>(\n  patchObject: NoInfer<ɵPatchSpec<T>>\n): StateOperator<T> {\n  return function patchStateOperator(existing: ExistingState<T>): T {\n    let clone = null;\n    for (const k in patchObject) {\n      const newValue = patchObject[k];\n      const existingPropValue = existing?.[k];\n      const newPropValue = isStateOperator(newValue)\n        ? newValue(<any>existingPropValue)\n        : newValue;\n      if (newPropValue !== existingPropValue) {\n        if (!clone) {\n          clone = { ...(<any>existing) };\n        }\n        clone[k] = newPropValue;\n      }\n    }\n    return clone || existing;\n  };\n}\n","import { ExistingState, NoInfer, StateOperator } from './types';\n\nimport { isStateOperator, isPredicate, isNumber, invalidIndex, Predicate } from './utils';\n\n/**\n * @param selector - Index of item in the array or a predicate function\n * that can be provided in `Array.prototype.findIndex`\n * @param operatorOrValue - New value under the `selector` index or a\n * function that can be applied to an existing value\n */\nexport function updateItem<T>(\n  selector: number | NoInfer<Predicate<T>>,\n  operatorOrValue: NoInfer<T> | NoInfer<StateOperator<T>>\n): StateOperator<T[]> {\n  return function updateItemOperator(existing: ExistingState<T[]>): T[] {\n    let index = -1;\n\n    if (isPredicate(selector)) {\n      index = existing.findIndex(selector as Predicate<T>);\n    } else if (isNumber(selector)) {\n      index = selector;\n    }\n\n    if (invalidIndex(index)) {\n      return existing as T[];\n    }\n\n    let value: T = null!;\n    // Need to check if the new item value will change the existing item value\n    // then, only if it will change it then clone the array and set the item\n    const theOperatorOrValue = operatorOrValue as T | StateOperator<T>;\n    if (isStateOperator(theOperatorOrValue)) {\n      value = theOperatorOrValue(existing[index] as ExistingState<T>);\n    } else {\n      value = theOperatorOrValue;\n    }\n\n    // If the value hasn't been mutated\n    // then we just return `existing` array\n    if (value === existing[index]) {\n      return existing as T[];\n    }\n\n    const clone = existing.slice();\n    clone[index] = value as T;\n    return clone;\n  };\n}\n","import { ExistingState, NoInfer, StateOperator } from './types';\nimport { isPredicate, isNumber, invalidIndex, Predicate } from './utils';\n\n/**\n * @param selector - index or predicate to remove an item from an array by\n */\nexport function removeItem<T>(selector: number | NoInfer<Predicate<T>>): StateOperator<T[]> {\n  return function removeItemOperator(existing: ExistingState<T[]>): T[] {\n    let index = -1;\n\n    if (isPredicate(selector)) {\n      index = existing.findIndex(selector);\n    } else if (isNumber(selector)) {\n      index = selector;\n    }\n\n    if (invalidIndex(index)) {\n      return existing as T[];\n    }\n\n    const clone = existing.slice();\n    clone.splice(index, 1);\n    return clone;\n  };\n}\n","/**\n * @module\n * @description\n * Entry point for all public APIs of this package.\n */\nexport { append } from './append';\nexport { compose } from './compose';\nexport { iif } from './iif';\nexport { insertItem } from './insert-item';\nexport { patch, type ɵPatchSpec } from './patch';\nexport { isStateOperator, isPredicate, type Predicate } from './utils';\nexport { updateItem } from './update-item';\nexport { removeItem } from './remove-item';\nexport type { ExistingState, NoInfer, StateOperator } from './types';\n","/**\n * Generated bundle index. 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