1 files changed, 200 insertions, 0 deletions
diff --git a/node_modules/@babel/core/lib/config/caching.js b/node_modules/@babel/core/lib/config/caching.js
new file mode 100644
index 00000000..d092b2d0
--- /dev/null
+++ b/node_modules/@babel/core/lib/config/caching.js
@@ -0,0 +1,200 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.makeStrongCache = makeStrongCache;
+exports.makeWeakCache = makeWeakCache;
+
+function makeStrongCache(handler) {
+  return makeCachedFunction(new Map(), handler);
+}
+
+function makeWeakCache(handler) {
+  return makeCachedFunction(new WeakMap(), handler);
+}
+
+function makeCachedFunction(callCache, handler) {
+  return function cachedFunction(arg, data) {
+    let cachedValue = callCache.get(arg);
+
+    if (cachedValue) {
+      for (var _iterator = cachedValue, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
+        var _ref2;
+
+        if (_isArray) {
+          if (_i >= _iterator.length) break;
+          _ref2 = _iterator[_i++];
+        } else {
+          _i = _iterator.next();
+          if (_i.done) break;
+          _ref2 = _i.value;
+        }
+
+        const _ref = _ref2;
+        const value = _ref.value,
+              valid = _ref.valid;
+        if (valid(data)) return value;
+      }
+    }
+
+    const cache = new CacheConfigurator(data);
+    const value = handler(arg, cache);
+    if (!cache.configured()) cache.forever();
+    cache.deactivate();
+
+    switch (cache.mode()) {
+      case "forever":
+        cachedValue = [{
+          value,
+          valid: () => true
+        }];
+        callCache.set(arg, cachedValue);
+        break;
+
+      case "invalidate":
+        cachedValue = [{
+          value,
+          valid: cache.validator()
+        }];
+        callCache.set(arg, cachedValue);
+        break;
+
+      case "valid":
+        if (cachedValue) {
+          cachedValue.push({
+            value,
+            valid: cache.validator()
+          });
+        } else {
+          cachedValue = [{
+            value,
+            valid: cache.validator()
+          }];
+          callCache.set(arg, cachedValue);
+        }
+
+    }
+
+    return value;
+  };
+}
+
+class CacheConfigurator {
+  constructor(data) {
+    this._active = true;
+    this._never = false;
+    this._forever = false;
+    this._invalidate = false;
+    this._configured = false;
+    this._pairs = [];
+    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);
+
+    this._pairs.push([key, handler]);
+
+    return key;
+  }
+
+  invalidate(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._invalidate = true;
+    this._configured = true;
+    const key = handler(this._data);
+
+    this._pairs.push([key, handler]);
+
+    return key;
+  }
+
+  validator() {
+    const pairs = this._pairs;
+    return data => pairs.every(([key, fn]) => key === fn(data));
+  }
+
+  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(val);
+  }
+
+  cacheFn.forever = () => cache.forever();
+
+  cacheFn.never = () => cache.never();
+
+  cacheFn.using = cb => cache.using(() => cb());
+
+  cacheFn.invalidate = cb => cache.invalidate(() => cb());
+
+  return cacheFn;
+}
+\ No newline at end of file