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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 | 1x 4665x 1770x 2895x 1x 52792x 1x 336x 168x 168x 168x 51x 49x 2x 117x 32x 85x 66x 4x 62x 1x 69x 69x 1x 2x 2x 1x 3664x 3664x 1157x 2507x 1x 3640x 3640x 845x 2795x 1025x 1770x 1770x 1x 2871x 2241x 630x 630x 630x 808x 605x 203x 203x 630x 1x 13143x 13143x 18258x 13141x 1x 1389x 1389x 3716x 3716x 118x 3598x 1389x 192x 192x 192x 46x 192x 1x 26x 26x 32x 32x 26x 1x 2143x 2143x 1386x 757x 987x 1068x 757x 1x 37x 37x 28x 11x 11x 11x 13x 13x 11x 11x 2x 2x 9x 1x 14176x 1x 8014x 3895x 4119x 3056x 1063x | import { Event, StateValue, ActionType, Action, EventObject, StateInterface } from './types'; import { STATE_DELIMITER } from './constants'; function isState(state: object | string): state is StateInterface { if (typeof state === 'string') { return false; } return 'value' in state && 'tree' in state && 'history' in state; } export function keys<T extends object>(value: T): Array<keyof T & string> { return Object.keys(value) as Array<keyof T & string>; } export function matchesState( parentStateId: StateValue, childStateId: StateValue, Edelimiter: string = STATE_DELIMITER ): boolean { const parentStateValue = toStateValue(parentStateId, delimiter); const childStateValue = toStateValue(childStateId, delimiter); if (typeof childStateValue === 'string') { if (typeof parentStateValue === 'string') { return childStateValue === parentStateValue; } // Parent more specific than child return false; } if (typeof parentStateValue === 'string') { return parentStateValue in childStateValue; } return keys(parentStateValue).every(key => { if (!(key in childStateValue)) { return false; } return matchesState(parentStateValue[key], childStateValue[key]); }); } export function getEventType<TEvents extends EventObject = EventObject>( event: Event<TEvents> ): TEvents['type'] { try { return typeof event === 'string' || typeof event === 'number' ? `${event}` : (event as TEvents).type; } catch (e) { throw new Error( 'Events must be strings or objects with a string event.type property.' ); } } export function getActionType(action: Action<any>): ActionType { try { return typeof action === 'string' || typeof action === 'number' ? `${action}` : typeof action === 'function' ? action.name : action.type; } catch (e) { throw new Error( 'Actions must be strings or objects with a string action.type property.' ); } } export function toStatePath( stateId: string | string[], delimiter: string ): string[] { try { if (Array.isArray(stateId)) { return stateId; } return stateId.toString().split(delimiter); } catch (e) { throw new Error(`'${stateId}' is not a valid state path.`); } } export function toStateValue( stateValue: StateInterface<any> | StateValue | string[], delimiter: string ): StateValue { Iif (isState(stateValue)) { return stateValue.value; } if (Array.isArray(stateValue)) { return pathToStateValue(stateValue); } if (typeof stateValue !== 'string' && !isState(stateValue)) { return stateValue as StateValue; } const statePath = toStatePath(stateValue as string, delimiter); return pathToStateValue(statePath); } export function pathToStateValue(statePath: string[]): StateValue { if (statePath.length === 1) { return statePath[0]; } const value = {}; let marker = value; for (let i = 0; i < statePath.length - 1; i++) { if (i === statePath.length - 2) { marker[statePath[i]] = statePath[i + 1]; } else { marker[statePath[i]] = {}; marker = marker[statePath[i]]; } } return value; } export function mapValues<T, P>( collection: { [key: string]: T }, iteratee: ( item: T, key: string, collection: { [key: string]: T }, i: number ) => P ): { [key: string]: P } { const result = {}; keys(collection).forEach((key, i) => { result[key] = iteratee(collection[key], key, collection, i); }); return result; } export function mapFilterValues<T, P>( collection: { [key: string]: T }, iteratee: (item: T, key: string, collection: { [key: string]: T }) => P, predicate: (item: T) => boolean ): { [key: string]: P } { const result = {}; keys(collection).forEach(key => { const item = collection[key]; if (!predicate(item)) { return; } result[key] = iteratee(item, key, collection); }); return result; } /** * Retrieves a value at the given path. * @param props The deep path to the prop of the desired value */ export const path = <T extends Record<string, any>>(props: string[]): any => ( object: T ): any => { let result: T = object; for (const prop of props) { result = result[prop as keyof typeof result]; } return result; }; /** * Retrieves a value at the given path via the nested accessor prop. * @param props The deep path to the prop of the desired value */ export function nestedPath<T extends Record<string, any>>( props: string[], accessorProp: keyof T ): (object: T) => T { return object => { let result: T = object; for (const prop of props) { result = result[accessorProp][prop]; } return result; }; } export const toStatePaths = ( stateValue: StateValue | undefined ): string[][] => { Iif (!stateValue) { return [[]]; } if (typeof stateValue === 'string') { return [[stateValue]]; } const result = flatten( keys(stateValue).map(key => { return toStatePaths(stateValue[key]).map(subPath => { return [key].concat(subPath); }); }) ); return result; }; export const pathsToStateValue = (paths: string[][]): StateValue => { const result: StateValue = {}; if (paths && paths.length === 1 && paths[0].length === 1) { return paths[0][0]; } for (const currentPath of paths) { let marker = result; // tslint:disable-next-line:prefer-for-of for (let i = 0; i < currentPath.length; i++) { const subPath = currentPath[i]; if (i === currentPath.length - 2) { marker[subPath] = currentPath[i + 1]; break; } marker[subPath] = marker[subPath] || {}; marker = marker[subPath] as {}; } } return result; }; export function flatten<T>(array: T[][]): T[] { return ([] as T[]).concat(...array); } export function toArray<T>(value: T[] | T | undefined): T[] { if (Array.isArray(value)) { return value; } if (value === undefined) { return []; } return [value]; } |