(fn)
| 181 | * @returns {MakeCacheableWithContextResult & { bindCache: BindCacheForContext, bindContextCache: BindContextCacheForContext }} cacheable function with context |
| 182 | */ |
| 183 | const makeCacheableWithContext = (fn) => { |
| 184 | /** @typedef {Map<string, Map<string, string>>} InnerCache */ |
| 185 | /** @type {WeakMap<AssociatedObjectForCache, InnerCache>} */ |
| 186 | const cache = new WeakMap(); |
| 187 | |
| 188 | /** @type {MakeCacheableWithContextResult & { bindCache: BindCacheForContext, bindContextCache: BindContextCacheForContext }} */ |
| 189 | const cachedFn = (context, identifier, associatedObjectForCache) => { |
| 190 | if (!associatedObjectForCache) return fn(context, identifier); |
| 191 | |
| 192 | let innerCache = cache.get(associatedObjectForCache); |
| 193 | if (innerCache === undefined) { |
| 194 | innerCache = new Map(); |
| 195 | cache.set(associatedObjectForCache, innerCache); |
| 196 | } |
| 197 | |
| 198 | /** @type {undefined | string} */ |
| 199 | let cachedResult; |
| 200 | let innerSubCache = innerCache.get(context); |
| 201 | if (innerSubCache === undefined) { |
| 202 | innerCache.set(context, (innerSubCache = new Map())); |
| 203 | } else { |
| 204 | cachedResult = innerSubCache.get(identifier); |
| 205 | } |
| 206 | |
| 207 | if (cachedResult !== undefined) { |
| 208 | return cachedResult; |
| 209 | } |
| 210 | const result = fn(context, identifier); |
| 211 | innerSubCache.set(identifier, result); |
| 212 | return result; |
| 213 | }; |
| 214 | |
| 215 | /** @type {BindCacheForContext} */ |
| 216 | cachedFn.bindCache = (associatedObjectForCache) => { |
| 217 | /** @type {undefined | InnerCache} */ |
| 218 | let innerCache; |
| 219 | if (associatedObjectForCache) { |
| 220 | innerCache = cache.get(associatedObjectForCache); |
| 221 | if (innerCache === undefined) { |
| 222 | innerCache = new Map(); |
| 223 | cache.set(associatedObjectForCache, innerCache); |
| 224 | } |
| 225 | } else { |
| 226 | innerCache = new Map(); |
| 227 | } |
| 228 | |
| 229 | /** |
| 230 | * Returns the returned relative path. |
| 231 | * @param {string} context context used to create relative path |
| 232 | * @param {string} identifier identifier used to create relative path |
| 233 | * @returns {string} the returned relative path |
| 234 | */ |
| 235 | const boundFn = (context, identifier) => { |
| 236 | /** @type {undefined | string} */ |
| 237 | let cachedResult; |
| 238 | let innerSubCache = innerCache.get(context); |
| 239 | if (innerSubCache === undefined) { |
| 240 | innerCache.set(context, (innerSubCache = new Map())); |
no test coverage detected