Initial import

src/lifecycle/AppClass.ts

@@ -0,0 +1,56 @@
+import {Application} from './Application';
+import {Container} from "@extollo/di";
+
+/**
+ * Base type for a class that supports binding methods by string.
+ */
+export interface Bindable {
+    getBoundMethod(methodName: string): (...args: any[]) => any
+}
+
+/**
+ * Returns true if the given object is bindable.
+ * @param what
+ * @return boolean
+ */
+export function isBindable(what: any): what is Bindable {
+    return (
+        what
+        && typeof what.getBoundMethod === 'function'
+        && what.getBoundMethod.length === 1
+        && typeof what.getBoundMethod('getBoundMethod') === 'function'
+    )
+}
+
+export class AppClass {
+    private readonly appClassApplication!: Application;
+
+    constructor() {
+        this.appClassApplication = Application.getApplication();
+    }
+
+    protected app(): Application {
+        return this.appClassApplication;
+    }
+
+    protected container(): Container {
+        return this.appClassApplication;
+    }
+
+    /**
+     * Get the method with the given name from this class, bound to this class.
+     * @param {string} methodName
+     * @return function
+     */
+    public getBoundMethod(methodName: string): (...args: any[]) => any {
+        // @ts-ignore
+        if ( typeof this[methodName] !== 'function' ) {
+            throw new TypeError(`Attempt to get bound method for non-function type: ${methodName}`)
+        }
+
+        return (...args: any[]): any => {
+            // @ts-ignore
+            return this[methodName](...args)
+        }
+    }
+}