init commit

1 files changed, 106 insertions, 0 deletions

diff --git a/node_modules/@jet/environment/dependencies/jet-proxy.js b/node_modules/@jet/environment/dependencies/jet-proxy.js
new file mode 100644
index 0000000..2c61763
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+++ b/node_modules/@jet/environment/dependencies/jet-proxy.js
@@ -0,0 +1,106 @@
+"use strict";
+/* eslint-disable @typescript-eslint/no-extraneous-class */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.LazyProxyFactory = void 0;
+// LazyProxyFactory creates a Proxy which lazily loads its target once needed
+class LazyProxyFactory {
+    static makeProxy(name, lazyProvider) {
+        const target = new ProxyTarget(lazyProvider);
+        const handler = {
+            get: (_, property, __) => {
+                // Create the lazy dependency if needed
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    // The dependency unexpectedly couldn't be created, so we have nothing to proxy to
+                    return undefined;
+                }
+                // Get the property, which could be a function
+                const res = target.realObject[property];
+                // If it's a function, bind it to the real object
+                if (typeof res == "function") {
+                    return res.bind(target.realObject);
+                }
+                return res;
+            },
+            set: (_, property, value) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return false;
+                }
+                return Reflect.set(target.realObject, property, value, target.realObject);
+            },
+            has: (_, property) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return false;
+                }
+                return Reflect.has(target.realObject, property);
+            },
+            deleteProperty: (_, property) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return false;
+                }
+                return Reflect.deleteProperty(target.realObject, property);
+            },
+            ownKeys: (_) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return [];
+                }
+                return Reflect.ownKeys(target.realObject);
+            },
+            getOwnPropertyDescriptor: (_, property) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return undefined;
+                }
+                return Reflect.getOwnPropertyDescriptor(target.realObject, property);
+            },
+            defineProperty: (_, property, descriptor) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return false;
+                }
+                return Reflect.defineProperty(target.realObject, property, descriptor);
+            },
+            preventExtensions: (_) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return false;
+                }
+                /* We need to prevent extensions on the actual proxy target
+                otherwise the Proxy throws a TypeError */
+                Reflect.preventExtensions(target);
+                return Reflect.preventExtensions(target.realObject);
+            },
+            isExtensible: (_) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return false;
+                }
+                return Reflect.isExtensible(target.realObject);
+            },
+            getPrototypeOf: (_) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return null;
+                }
+                return Reflect.getPrototypeOf(target.realObject);
+            },
+            setPrototypeOf: (_, prototype) => {
+                if (target.createRealObjectIfNeeded(name) === undefined) {
+                    return false;
+                }
+                return Reflect.setPrototypeOf(target.realObject, prototype);
+            },
+        };
+        const res = new Proxy(target, handler);
+        return res;
+    }
+}
+exports.LazyProxyFactory = LazyProxyFactory;
+/* The proxy target begins by holding nothing,
+and eventually holds the real proxy target once needed */
+class ProxyTarget {
+    constructor(lazyProvider) {
+        this.lazyProvider = lazyProvider;
+    }
+    createRealObjectIfNeeded(name) {
+        if (this.realObject === undefined) {
+            this.realObject = this.lazyProvider.lazyDependencyFor(name);
+        }
+        return this.realObject;
+    }
+}
+//# sourceMappingURL=jet-proxy.js.map
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