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fix(types): correctly infer type in $eval and $$eval #1603

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merged 1 commit into from
Mar 31, 2020
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fix(types): correctly infer type in $eval and $$eval #1603

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12 changes: 6 additions & 6 deletions utils/generate_types/overrides.d.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -56,12 +56,12 @@ export interface Page {

$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], Arg, R>, arg: Arg): Promise<R>;
$eval<R, Arg>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement, Arg, R>, arg: Arg): Promise<R>;
$eval<K extends keyof HTMLElementTagNameMap, R>(selector: string, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
$eval<R>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement, void, R>, arg?: any): Promise<R>;

$$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], Arg, R>, arg: Arg): Promise<R>;
$$eval<R, Arg>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement[], Arg, R>, arg: Arg): Promise<R>;
$$eval<K extends keyof HTMLElementTagNameMap, R>(selector: string, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
$$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
$$eval<R>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement[], void, R>, arg?: any): Promise<R>;

waitForFunction<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg, options?: PageWaitForFunctionOptions): Promise<SmartHandle<R>>;
Expand All @@ -88,12 +88,12 @@ export interface Frame {

$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], Arg, R>, arg: Arg): Promise<R>;
$eval<R, Arg>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement, Arg, R>, arg: Arg): Promise<R>;
$eval<K extends keyof HTMLElementTagNameMap, R>(selector: string, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
$eval<R>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement, void, R>, arg?: any): Promise<R>;

$$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], Arg, R>, arg: Arg): Promise<R>;
$$eval<R, Arg>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement[], Arg, R>, arg: Arg): Promise<R>;
$$eval<K extends keyof HTMLElementTagNameMap, R>(selector: string, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
$$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
$$eval<R>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement[], void, R>, arg?: any): Promise<R>;

waitForFunction<R, Arg>(pageFunction: PageFunction<Arg, R>, arg: Arg, options?: PageWaitForFunctionOptions): Promise<SmartHandle<R>>;
Expand Down Expand Up @@ -133,12 +133,12 @@ export interface ElementHandle<T=Node> extends JSHandle<T> {

$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], Arg, R>, arg: Arg): Promise<R>;
$eval<R, Arg>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement, Arg, R>, arg: Arg): Promise<R>;
$eval<K extends keyof HTMLElementTagNameMap, R>(selector: string, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K], void, R>, arg?: any): Promise<R>;
$eval<R>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement, void, R>, arg?: any): Promise<R>;

$$eval<K extends keyof HTMLElementTagNameMap, R, Arg>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], Arg, R>, arg: Arg): Promise<R>;
$$eval<R, Arg>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement[], Arg, R>, arg: Arg): Promise<R>;
$$eval<K extends keyof HTMLElementTagNameMap, R>(selector: string, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
$$eval<K extends keyof HTMLElementTagNameMap, R>(selector: K, pageFunction: PageFunctionOn<HTMLElementTagNameMap[K][], void, R>, arg?: any): Promise<R>;
$$eval<R>(selector: string, pageFunction: PageFunctionOn<HTMLOrSVGElement[], void, R>, arg?: any): Promise<R>;
}

Expand Down
9 changes: 8 additions & 1 deletion utils/generate_types/test/test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -286,7 +286,14 @@ playwright.chromium.launch().then(async browser => {
console.log(elements.map(x => x)[0].textContent);
return elements[3].innerHTML;
});

{
const value = await page.$eval('input', i => i.disabled);
const assertion: AssertType<boolean, typeof value> = true;
}
{
const value = await page.$$eval('input', i => i[0].defaultValue);
const assertion: AssertType<string, typeof value> = true;
}
browser.close();
})();

Expand Down