web/shell -> shell/

shell/util.ts

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+let $: (selector: string) => HTMLElement = document.querySelector.bind(document);
+
+// xsystem35 exported functions
+declare function _musfade_setvolval_all(vol: number): void;
+declare function _ags_setAntialiasedStringMode(on: number): void;
+declare function _sdl_rightButton(down: number): void;
+declare function _ald_getdata(type: number, no: number): number;
+declare function _ald_freedata(data: number): void;
+
+declare namespace Module {
+    let noInitialRun: boolean;
+
+    // Undocumented methods / attributes
+    let canvas: HTMLElement;
+    function setStatus(status: string): void;
+    function monitorRunDependencies(left: number): void;
+    function callMain(): void;
+    function getMemory(size: number): number;
+}
+
+declare namespace FS {
+    function writeFile(path: string, data: ArrayBufferView | string,
+                       opts?: {encoding?: string; flags?: string; canOwn?: boolean}): void;
+}
+
+declare namespace EmterpreterAsync {
+    function handle(asyncOp: (resume: () => void) => void): void;
+}