diff options
Diffstat (limited to 'node_modules/@babel/core/lib/config/caching.js')
| -rw-r--r-- | node_modules/@babel/core/lib/config/caching.js | 261 |
1 files changed, 0 insertions, 261 deletions
diff --git a/node_modules/@babel/core/lib/config/caching.js b/node_modules/@babel/core/lib/config/caching.js deleted file mode 100644 index 344c8390..00000000 --- a/node_modules/@babel/core/lib/config/caching.js +++ /dev/null @@ -1,261 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.assertSimpleType = assertSimpleType; -exports.makeStrongCache = makeStrongCache; -exports.makeStrongCacheSync = makeStrongCacheSync; -exports.makeWeakCache = makeWeakCache; -exports.makeWeakCacheSync = makeWeakCacheSync; -function _gensync() { - const data = require("gensync"); - _gensync = function () { - return data; - }; - return data; -} -var _async = require("../gensync-utils/async.js"); -var _util = require("./util.js"); -const synchronize = gen => { - return _gensync()(gen).sync; -}; -function* genTrue() { - return true; -} -function makeWeakCache(handler) { - return makeCachedFunction(WeakMap, handler); -} -function makeWeakCacheSync(handler) { - return synchronize(makeWeakCache(handler)); -} -function makeStrongCache(handler) { - return makeCachedFunction(Map, handler); -} -function makeStrongCacheSync(handler) { - return synchronize(makeStrongCache(handler)); -} -function makeCachedFunction(CallCache, handler) { - const callCacheSync = new CallCache(); - const callCacheAsync = new CallCache(); - const futureCache = new CallCache(); - return function* cachedFunction(arg, data) { - const asyncContext = yield* (0, _async.isAsync)(); - const callCache = asyncContext ? callCacheAsync : callCacheSync; - const cached = yield* getCachedValueOrWait(asyncContext, callCache, futureCache, arg, data); - if (cached.valid) return cached.value; - const cache = new CacheConfigurator(data); - const handlerResult = handler(arg, cache); - let finishLock; - let value; - if ((0, _util.isIterableIterator)(handlerResult)) { - value = yield* (0, _async.onFirstPause)(handlerResult, () => { - finishLock = setupAsyncLocks(cache, futureCache, arg); - }); - } else { - value = handlerResult; - } - updateFunctionCache(callCache, cache, arg, value); - if (finishLock) { - futureCache.delete(arg); - finishLock.release(value); - } - return value; - }; -} -function* getCachedValue(cache, arg, data) { - const cachedValue = cache.get(arg); - if (cachedValue) { - for (const { - value, - valid - } of cachedValue) { - if (yield* valid(data)) return { - valid: true, - value - }; - } - } - return { - valid: false, - value: null - }; -} -function* getCachedValueOrWait(asyncContext, callCache, futureCache, arg, data) { - const cached = yield* getCachedValue(callCache, arg, data); - if (cached.valid) { - return cached; - } - if (asyncContext) { - const cached = yield* getCachedValue(futureCache, arg, data); - if (cached.valid) { - const value = yield* (0, _async.waitFor)(cached.value.promise); - return { - valid: true, - value - }; - } - } - return { - valid: false, - value: null - }; -} -function setupAsyncLocks(config, futureCache, arg) { - const finishLock = new Lock(); - updateFunctionCache(futureCache, config, arg, finishLock); - return finishLock; -} -function updateFunctionCache(cache, config, arg, value) { - if (!config.configured()) config.forever(); - let cachedValue = cache.get(arg); - config.deactivate(); - switch (config.mode()) { - case "forever": - cachedValue = [{ - value, - valid: genTrue - }]; - cache.set(arg, cachedValue); - break; - case "invalidate": - cachedValue = [{ - value, - valid: config.validator() - }]; - cache.set(arg, cachedValue); - break; - case "valid": - if (cachedValue) { - cachedValue.push({ - value, - valid: config.validator() - }); - } else { - cachedValue = [{ - value, - valid: config.validator() - }]; - cache.set(arg, cachedValue); - } - } -} -class CacheConfigurator { - constructor(data) { - this._active = true; - this._never = false; - this._forever = false; - this._invalidate = false; - this._configured = false; - this._pairs = []; - this._data = void 0; - this._data = data; - } - simple() { - return makeSimpleConfigurator(this); - } - mode() { - if (this._never) return "never"; - if (this._forever) return "forever"; - if (this._invalidate) return "invalidate"; - return "valid"; - } - forever() { - if (!this._active) { - throw new Error("Cannot change caching after evaluation has completed."); - } - if (this._never) { - throw new Error("Caching has already been configured with .never()"); - } - this._forever = true; - this._configured = true; - } - never() { - if (!this._active) { - throw new Error("Cannot change caching after evaluation has completed."); - } - if (this._forever) { - throw new Error("Caching has already been configured with .forever()"); - } - this._never = true; - this._configured = true; - } - using(handler) { - if (!this._active) { - throw new Error("Cannot change caching after evaluation has completed."); - } - if (this._never || this._forever) { - throw new Error("Caching has already been configured with .never or .forever()"); - } - this._configured = true; - const key = handler(this._data); - const fn = (0, _async.maybeAsync)(handler, `You appear to be using an async cache handler, but Babel has been called synchronously`); - if ((0, _async.isThenable)(key)) { - return key.then(key => { - this._pairs.push([key, fn]); - return key; - }); - } - this._pairs.push([key, fn]); - return key; - } - invalidate(handler) { - this._invalidate = true; - return this.using(handler); - } - validator() { - const pairs = this._pairs; - return function* (data) { - for (const [key, fn] of pairs) { - if (key !== (yield* fn(data))) return false; - } - return true; - }; - } - deactivate() { - this._active = false; - } - configured() { - return this._configured; - } -} -function makeSimpleConfigurator(cache) { - function cacheFn(val) { - if (typeof val === "boolean") { - if (val) cache.forever();else cache.never(); - return; - } - return cache.using(() => assertSimpleType(val())); - } - cacheFn.forever = () => cache.forever(); - cacheFn.never = () => cache.never(); - cacheFn.using = cb => cache.using(() => assertSimpleType(cb())); - cacheFn.invalidate = cb => cache.invalidate(() => assertSimpleType(cb())); - return cacheFn; -} -function assertSimpleType(value) { - if ((0, _async.isThenable)(value)) { - throw new Error(`You appear to be using an async cache handler, ` + `which your current version of Babel does not support. ` + `We may add support for this in the future, ` + `but if you're on the most recent version of @babel/core and still ` + `seeing this error, then you'll need to synchronously handle your caching logic.`); - } - if (value != null && typeof value !== "string" && typeof value !== "boolean" && typeof value !== "number") { - throw new Error("Cache keys must be either string, boolean, number, null, or undefined."); - } - return value; -} -class Lock { - constructor() { - this.released = false; - this.promise = void 0; - this._resolve = void 0; - this.promise = new Promise(resolve => { - this._resolve = resolve; - }); - } - release(value) { - this.released = true; - this._resolve(value); - } -} -0 && 0; - -//# sourceMappingURL=caching.js.map |
