Map WebIDL object to TypeScript object

This type on the TS side is relatively new, which is probably why it wasn't used in the first place, but gives more precise definitions and, so, better type checking.

As a side-effect, fixes microsoft#290 (although in a different way).

Author: RReverser

baselines/dom.generated.d.ts

@@ -130,7 +130,7 @@ interface AudioWorkletNodeOptions extends AudioNodeOptions {
     numberOfOutputs?: number;
     outputChannelCount?: number[];
     parameterData?: Record<string, number>;
-    processorOptions?: any;
+    processorOptions?: object | null;
 }
 
 interface AuthenticationExtensionsClientInputs {
@@ -948,7 +948,7 @@ interface PaymentDetailsInit extends PaymentDetailsBase {
 
 interface PaymentDetailsModifier {
     additionalDisplayItems?: PaymentItem[];
-    data?: any;
+    data?: object;
     supportedMethods: string | string[];
     total?: PaymentItem;
 }
@@ -965,7 +965,7 @@ interface PaymentItem {
 }
 
 interface PaymentMethodData {
-    data?: any;
+    data?: object;
     supportedMethods: string | string[];
 }
 
@@ -1043,7 +1043,7 @@ interface PositionOptions {
 }
 
 interface PostMessageOptions {
-    transfer?: any[];
+    transfer?: object[];
 }
 
 interface ProgressEventInit extends EventInit {
@@ -2465,14 +2465,14 @@ interface BhxBrowser {
     clearLastError(): void;
     currentWindowId(): number;
     fireExtensionApiTelemetry(functionName: string, isSucceeded: boolean, isSupported: boolean, errorString: string): void;
-    genericFunction(functionId: number, destination: any, parameters?: string, callbackId?: number): void;
+    genericFunction(functionId: number, destination: object, parameters?: string, callbackId?: number): void;
     genericSynchronousFunction(functionId: number, parameters?: string): string;
     getExtensionId(): string;
-    getThisAddress(): any;
+    getThisAddress(): object;
     registerGenericFunctionCallbackHandler(callbackHandler: Function): void;
     registerGenericListenerHandler(eventHandler: Function): void;
     setLastError(parameters: string): void;
-    webPlatformGenericFunction(destination: any, parameters?: string, callbackId?: number): void;
+    webPlatformGenericFunction(destination: object, parameters?: string, callbackId?: number): void;
 }
 
 declare var BhxBrowser: {
@@ -3636,7 +3636,7 @@ interface ConcatParams extends Algorithm {
 
 /** Provides access to the browser's debugging console (e.g. the Web Console in Firefox). The specifics of how it works varies from browser to browser, but there is a de facto set of features that are typically provided. */
 interface Console {
-    memory: any;
+    memory: object;
     assert(condition?: boolean, message?: string, ...data: any[]): void;
     clear(): void;
     count(label?: string): void;
@@ -3978,7 +3978,7 @@ interface DOMMatrixReadOnly {
     skewY(sy?: number): DOMMatrix;
     toFloat32Array(): Float32Array;
     toFloat64Array(): Float64Array;
-    toJSON(): any;
+    toJSON(): object;
     transformPoint(point?: DOMPointInit): DOMPoint;
     translate(tx?: number, ty?: number, tz?: number): DOMMatrix;
 }
@@ -4023,7 +4023,7 @@ interface DOMPointReadOnly {
     readonly y: number;
     readonly z: number;
     matrixTransform(matrix?: DOMMatrixInit): DOMPoint;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var DOMPointReadOnly: {
@@ -4038,7 +4038,7 @@ interface DOMQuad {
     readonly p3: DOMPoint;
     readonly p4: DOMPoint;
     getBounds(): DOMRect;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var DOMQuad: {
@@ -4084,7 +4084,7 @@ interface DOMRectReadOnly {
     readonly width: number;
     readonly x: number;
     readonly y: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var DOMRectReadOnly: {
@@ -5483,13 +5483,13 @@ declare var EventTarget: {
 interface ExtensionScriptApis {
     extensionIdToShortId(extensionId: string): number;
     fireExtensionApiTelemetry(functionName: string, isSucceeded: boolean, isSupported: boolean, errorString: string): void;
-    genericFunction(routerAddress: any, parameters?: string, callbackId?: number): void;
+    genericFunction(routerAddress: object, parameters?: string, callbackId?: number): void;
     genericSynchronousFunction(functionId: number, parameters?: string): string;
-    genericWebRuntimeCallout(to: any, from: any, payload: string): void;
+    genericWebRuntimeCallout(to: object, from: object, payload: string): void;
     getExtensionId(): string;
     registerGenericFunctionCallbackHandler(callbackHandler: Function): void;
     registerGenericPersistentCallbackHandler(callbackHandler: Function): void;
-    registerWebRuntimeCallbackHandler(handler: Function): any;
+    registerWebRuntimeCallbackHandler(handler: Function): object;
 }
 
 declare var ExtensionScriptApis: {
@@ -10185,7 +10185,7 @@ interface MediaDeviceInfo {
     readonly groupId: string;
     readonly kind: MediaDeviceKind;
     readonly label: string;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var MediaDeviceInfo: {
@@ -11559,7 +11559,7 @@ declare var PaymentRequestUpdateEvent: {
 
 /** This Payment Request API interface is returned after a user selects a payment method and approves a payment request. */
 interface PaymentResponse {
-    readonly details: any;
+    readonly details: object;
     readonly methodName: string;
     readonly payerEmail: string | null;
     readonly payerName: string | null;
@@ -11627,7 +11627,7 @@ interface Performance extends EventTarget {
     measure(measureName: string, startMark?: string, endMark?: string): void;
     now(): number;
     setResourceTimingBufferSize(maxSize: number): void;
-    toJSON(): any;
+    toJSON(): object;
     addEventListener<K extends keyof PerformanceEventMap>(type: K, listener: (this: Performance, ev: PerformanceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
     removeEventListener<K extends keyof PerformanceEventMap>(type: K, listener: (this: Performance, ev: PerformanceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
@@ -11645,7 +11645,7 @@ interface PerformanceEntry {
     readonly entryType: string;
     readonly name: string;
     readonly startTime: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var PerformanceEntry: {
@@ -11675,7 +11675,7 @@ declare var PerformanceMeasure: {
 interface PerformanceNavigation {
     readonly redirectCount: number;
     readonly type: number;
-    toJSON(): any;
+    toJSON(): object;
     readonly TYPE_BACK_FORWARD: number;
     readonly TYPE_NAVIGATE: number;
     readonly TYPE_RELOAD: number;
@@ -11703,7 +11703,7 @@ interface PerformanceNavigationTiming extends PerformanceResourceTiming {
     readonly type: NavigationType;
     readonly unloadEventEnd: number;
     readonly unloadEventStart: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var PerformanceNavigationTiming: {
@@ -11753,7 +11753,7 @@ interface PerformanceResourceTiming extends PerformanceEntry {
     readonly secureConnectionStart: number;
     readonly transferSize: number;
     readonly workerStart: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var PerformanceResourceTiming: {
@@ -11784,7 +11784,7 @@ interface PerformanceTiming {
     readonly secureConnectionStart: number;
     readonly unloadEventEnd: number;
     readonly unloadEventStart: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var PerformanceTiming: {
@@ -12476,7 +12476,7 @@ declare var RTCSctpTransport: {
 interface RTCSessionDescription {
     readonly sdp: string;
     readonly type: RTCSdpType;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var RTCSessionDescription: {
@@ -12532,7 +12532,7 @@ declare var RTCStatsProvider: {
 };
 
 interface RTCStatsReport {
-    forEach(callbackfn: (value: any, key: string, parent: RTCStatsReport) => void, thisArg?: any): void;
+    forEach(callbackfn: (value: object, key: string, parent: RTCStatsReport) => void, thisArg?: any): void;
 }
 
 declare var RTCStatsReport: {
@@ -19043,12 +19043,12 @@ declare namespace WebAssembly {
     };
 
     interface Instance {
-        readonly exports: any;
+        readonly exports: object;
     }
 
     var Instance: {
         prototype: Instance;
-        new(module: Module, importObject?: any): Instance;
+        new(module: Module, importObject?: object): Instance;
     };
 
     interface LinkError {
@@ -19135,8 +19135,8 @@ declare namespace WebAssembly {
     type ImportExportKind = "function" | "table" | "memory" | "global";
     type TableKind = "anyfunc";
     function compile(bytes: BufferSource): Promise<Module>;
-    function instantiate(bytes: BufferSource, importObject?: any): Promise<WebAssemblyInstantiatedSource>;
-    function instantiate(moduleObject: Module, importObject?: any): Promise<Instance>;
+    function instantiate(bytes: BufferSource, importObject?: object): Promise<WebAssemblyInstantiatedSource>;
+    function instantiate(moduleObject: Module, importObject?: object): Promise<Instance>;
     function validate(bytes: BufferSource): boolean;
 }
 

baselines/dom.iterable.generated.d.ts

@@ -189,7 +189,7 @@ interface RTCRtpTransceiver {
     setCodecPreferences(codecs: Iterable<RTCRtpCodecCapability>): void;
 }
 
-interface RTCStatsReport extends ReadonlyMap<string, any> {
+interface RTCStatsReport extends ReadonlyMap<string, object> {
 }
 
 interface SVGLengthList {

baselines/webworker.generated.d.ts

@@ -327,7 +327,7 @@ interface PipeOptions {
 }
 
 interface PostMessageOptions {
-    transfer?: any[];
+    transfer?: object[];
 }
 
 interface ProgressEventInit extends EventInit {
@@ -906,7 +906,7 @@ interface ConcatParams extends Algorithm {
 
 /** Provides access to the browser's debugging console (e.g. the Web Console in Firefox). The specifics of how it works varies from browser to browser, but there is a de facto set of features that are typically provided. */
 interface Console {
-    memory: any;
+    memory: object;
     assert(condition?: boolean, message?: string, ...data: any[]): void;
     clear(): void;
     count(label?: string): void;
@@ -1132,7 +1132,7 @@ interface DOMMatrixReadOnly {
     skewY(sy?: number): DOMMatrix;
     toFloat32Array(): Float32Array;
     toFloat64Array(): Float64Array;
-    toJSON(): any;
+    toJSON(): object;
     transformPoint(point?: DOMPointInit): DOMPoint;
     translate(tx?: number, ty?: number, tz?: number): DOMMatrix;
 }
@@ -1164,7 +1164,7 @@ interface DOMPointReadOnly {
     readonly y: number;
     readonly z: number;
     matrixTransform(matrix?: DOMMatrixInit): DOMPoint;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var DOMPointReadOnly: {
@@ -1179,7 +1179,7 @@ interface DOMQuad {
     readonly p3: DOMPoint;
     readonly p4: DOMPoint;
     getBounds(): DOMRect;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var DOMQuad: {
@@ -1211,7 +1211,7 @@ interface DOMRectReadOnly {
     readonly width: number;
     readonly x: number;
     readonly y: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var DOMRectReadOnly: {
@@ -2493,7 +2493,7 @@ interface Performance extends EventTarget {
     measure(measureName: string, startMark?: string, endMark?: string): void;
     now(): number;
     setResourceTimingBufferSize(maxSize: number): void;
-    toJSON(): any;
+    toJSON(): object;
     addEventListener<K extends keyof PerformanceEventMap>(type: K, listener: (this: Performance, ev: PerformanceEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
     removeEventListener<K extends keyof PerformanceEventMap>(type: K, listener: (this: Performance, ev: PerformanceEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
@@ -2511,7 +2511,7 @@ interface PerformanceEntry {
     readonly entryType: string;
     readonly name: string;
     readonly startTime: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var PerformanceEntry: {
@@ -2579,7 +2579,7 @@ interface PerformanceResourceTiming extends PerformanceEntry {
     readonly secureConnectionStart: number;
     readonly transferSize: number;
     readonly workerStart: number;
-    toJSON(): any;
+    toJSON(): object;
 }
 
 declare var PerformanceResourceTiming: {
@@ -5604,12 +5604,12 @@ declare namespace WebAssembly {
     };
 
     interface Instance {
-        readonly exports: any;
+        readonly exports: object;
     }
 
     var Instance: {
         prototype: Instance;
-        new(module: Module, importObject?: any): Instance;
+        new(module: Module, importObject?: object): Instance;
     };
 
     interface Memory {
@@ -5680,8 +5680,8 @@ declare namespace WebAssembly {
     type ImportExportKind = "function" | "table" | "memory" | "global";
     type TableKind = "anyfunc";
     function compile(bytes: BufferSource): Promise<Module>;
-    function instantiate(bytes: BufferSource, importObject?: any): Promise<WebAssemblyInstantiatedSource>;
-    function instantiate(moduleObject: Module, importObject?: any): Promise<Instance>;
+    function instantiate(bytes: BufferSource, importObject?: object): Promise<WebAssemblyInstantiatedSource>;
+    function instantiate(moduleObject: Module, importObject?: object): Promise<Instance>;
     function validate(bytes: BufferSource): boolean;
 }
 

src/helpers.ts

@@ -5,14 +5,13 @@ export const bufferSourceTypes = new Set(["ArrayBuffer", "ArrayBufferView", "Dat
 export const integerTypes = new Set(["byte", "octet", "short", "unsigned short", "long", "unsigned long", "long long", "unsigned long long"]);
 export const stringTypes = new Set(["ByteString", "DOMString", "USVString", "CSSOMString"]);
 const floatTypes = new Set(["float", "unrestricted float", "double", "unrestricted double"]);
-const sameTypes = new Set(["any", "boolean", "Date", "Function", "Promise", "void"]);
+const sameTypes = new Set(["any", "boolean", "object", "Date", "Function", "Promise", "void"]);
 export const baseTypeConversionMap = new Map<string, string>([
     ...[...bufferSourceTypes].map(type => [type, type] as [string, string]),
     ...[...integerTypes].map(type => [type, "number"] as [string, string]),
     ...[...floatTypes].map(type => [type, "number"] as [string, string]),
     ...[...stringTypes].map(type => [type, "string"] as [string, string]),
     ...[...sameTypes].map(type => [type, type] as [string, string]),
-    ["object", "any"],
     ["sequence", "Array"],
     ["record", "Record"],
     ["FrozenArray", "ReadonlyArray"],