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fix!: internalize execution context (#8844)

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3
docs/api/index.md
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@ -7,7 +7,7 @@ sidebar_label: API
## Classes ## Classes
| Class | Description | | Class | Description |
| --------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | ------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Accessibility](./puppeteer.accessibility.md) | The Accessibility class provides methods for inspecting Chromium's accessibility tree. The accessibility tree is used by assistive technology such as [screen readers](https://en.wikipedia.org/wiki/Screen_reader) or [switches](https://en.wikipedia.org/wiki/Switch_access). | | [Accessibility](./puppeteer.accessibility.md) | The Accessibility class provides methods for inspecting Chromium's accessibility tree. The accessibility tree is used by assistive technology such as [screen readers](https://en.wikipedia.org/wiki/Screen_reader) or [switches](https://en.wikipedia.org/wiki/Switch_access). |
| [Browser](./puppeteer.browser.md) | A Browser is created when Puppeteer connects to a Chromium instance, either through [PuppeteerNode.launch()](./puppeteer.puppeteernode.launch.md) or [Puppeteer.connect()](./puppeteer.puppeteer.connect.md). | | [Browser](./puppeteer.browser.md) | A Browser is created when Puppeteer connects to a Chromium instance, either through [PuppeteerNode.launch()](./puppeteer.puppeteernode.launch.md) or [Puppeteer.connect()](./puppeteer.puppeteer.connect.md). |
| [BrowserContext](./puppeteer.browsercontext.md) | BrowserContexts provide a way to operate multiple independent browser sessions. When a browser is launched, it has a single BrowserContext used by default. The method [Browser.newPage](./puppeteer.browser.newpage.md) creates a page in the default browser context. | | [BrowserContext](./puppeteer.browsercontext.md) | BrowserContexts provide a way to operate multiple independent browser sessions. When a browser is launched, it has a single BrowserContext used by default. The method [Browser.newPage](./puppeteer.browser.newpage.md) creates a page in the default browser context. |
@ -21,7 +21,6 @@ sidebar_label: API
| [Dialog](./puppeteer.dialog.md) | Dialog instances are dispatched by the [Page](./puppeteer.page.md) via the <code>dialog</code> event. | | [Dialog](./puppeteer.dialog.md) | Dialog instances are dispatched by the [Page](./puppeteer.page.md) via the <code>dialog</code> event. |
| [ElementHandle](./puppeteer.elementhandle.md) | ElementHandle represents an in-page DOM element. | | [ElementHandle](./puppeteer.elementhandle.md) | ElementHandle represents an in-page DOM element. |
| [EventEmitter](./puppeteer.eventemitter.md) | The EventEmitter class that many Puppeteer classes extend. | | [EventEmitter](./puppeteer.eventemitter.md) | The EventEmitter class that many Puppeteer classes extend. |
| [ExecutionContext](./puppeteer.executioncontext.md) | |
| [FileChooser](./puppeteer.filechooser.md) | File choosers let you react to the page requesting for a file. | | [FileChooser](./puppeteer.filechooser.md) | File choosers let you react to the page requesting for a file. |
| [Frame](./puppeteer.frame.md) | <p>Represents a DOM frame.</p><p>To understand frames, you can think of frames as <code>&lt;iframe&gt;</code> elements. Just like iframes, frames can be nested, and when JavaScript is executed in a frame, the JavaScript does not effect frames inside the ambient frame the JavaScript executes in.</p> | | [Frame](./puppeteer.frame.md) | <p>Represents a DOM frame.</p><p>To understand frames, you can think of frames as <code>&lt;iframe&gt;</code> elements. Just like iframes, frames can be nested, and when JavaScript is executed in a frame, the JavaScript does not effect frames inside the ambient frame the JavaScript executes in.</p> |
| [HTTPRequest](./puppeteer.httprequest.md) | Represents an HTTP request sent by a page. | | [HTTPRequest](./puppeteer.httprequest.md) | Represents an HTTP request sent by a page. |

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docs/api/puppeteer.executioncontext.evaluate.md
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@ -1,67 +0,0 @@
---
sidebar_label: ExecutionContext.evaluate
---
# ExecutionContext.evaluate() method
Evaluates the given function.
**Signature:**
```typescript
class ExecutionContext {
evaluate<
Params extends unknown[],
Func extends EvaluateFunc<Params> = EvaluateFunc<Params>
>(
pageFunction: Func | string,
...args: Params
): Promise<Awaited<ReturnType<Func>>>;
}
```
## Parameters
| Parameter | Type | Description |
| ------------ | -------------- | ----------------------------------------------- |
| pageFunction | Func \| string | The function to evaluate. |
| args | Params | Additional arguments to pass into the function. |
**Returns:**
Promise&lt;Awaited&lt;ReturnType&lt;Func&gt;&gt;&gt;
The result of evaluating the function. If the result is an object, a vanilla object containing the serializable properties of the result is returned.
## Example 1
```ts
const executionContext = await page.mainFrame().executionContext();
const result = await executionContext.evaluate(() => Promise.resolve(8 * 7))* ;
console.log(result); // prints "56"
```
## Example 2
A string can also be passed in instead of a function:
```ts
console.log(await executionContext.evaluate('1 + 2')); // prints "3"
```
## Example 3
Handles can also be passed as `args`. They resolve to their referenced object:
```ts
const oneHandle = await executionContext.evaluateHandle(() => 1);
const twoHandle = await executionContext.evaluateHandle(() => 2);
const result = await executionContext.evaluate(
(a, b) => a + b,
oneHandle,
twoHandle
);
await oneHandle.dispose();
await twoHandle.dispose();
console.log(result); // prints '3'.
```

75
docs/api/puppeteer.executioncontext.evaluatehandle.md
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@ -1,75 +0,0 @@
---
sidebar_label: ExecutionContext.evaluateHandle
---
# ExecutionContext.evaluateHandle() method
Evaluates the given function.
Unlike [evaluate](./puppeteer.executioncontext.evaluate.md), this method returns a handle to the result of the function.
This method may be better suited if the object cannot be serialized (e.g. `Map`) and requires further manipulation.
**Signature:**
```typescript
class ExecutionContext {
evaluateHandle<
Params extends unknown[],
Func extends EvaluateFunc<Params> = EvaluateFunc<Params>
>(
pageFunction: Func | string,
...args: Params
): Promise<HandleFor<Awaited<ReturnType<Func>>>>;
}
```
## Parameters
| Parameter | Type | Description |
| ------------ | -------------- | ----------------------------------------------- |
| pageFunction | Func \| string | The function to evaluate. |
| args | Params | Additional arguments to pass into the function. |
**Returns:**
Promise&lt;[HandleFor](./puppeteer.handlefor.md)&lt;Awaited&lt;ReturnType&lt;Func&gt;&gt;&gt;&gt;
A [handle](./puppeteer.jshandle.md) to the result of evaluating the function. If the result is a `Node`, then this will return an [element handle](./puppeteer.elementhandle.md).
## Example 1
```ts
const context = await page.mainFrame().executionContext();
const handle: JSHandle<typeof globalThis> = await context.evaluateHandle(() =>
Promise.resolve(self)
);
```
## Example 2
A string can also be passed in instead of a function.
```ts
const handle: JSHandle<number> = await context.evaluateHandle('1 + 2');
```
## Example 3
Handles can also be passed as `args`. They resolve to their referenced object:
```ts
const bodyHandle: ElementHandle<HTMLBodyElement> = await context.evaluateHandle(
() => {
return document.body;
}
);
const stringHandle: JSHandle<string> = await context.evaluateHandle(
body => body.innerHTML,
body
);
console.log(await stringHandle.jsonValue()); // prints body's innerHTML
// Always dispose your garbage! :)
await bodyHandle.dispose();
await stringHandle.dispose();
```

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docs/api/puppeteer.executioncontext.frame.md
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@ -1,23 +0,0 @@
---
sidebar_label: ExecutionContext.frame
---
# ExecutionContext.frame() method
**Signature:**
```typescript
class ExecutionContext {
frame(): Frame | null;
}
```
**Returns:**
[Frame](./puppeteer.frame.md) \| null
The frame associated with this execution context.
## Remarks
Not every execution context is associated with a frame. For example, [workers](./puppeteer.webworker.md) have execution contexts that are not associated with frames.

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docs/api/puppeteer.executioncontext.md
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@ -1,38 +0,0 @@
---
sidebar_label: ExecutionContext
---
# ExecutionContext class
> Warning: This API is now obsolete.
>
> Do not use directly.
>
> Represents a context for JavaScript execution.
**Signature:**
```typescript
export declare class ExecutionContext
```
## Remarks
Besides pages, execution contexts can be found in [workers](./puppeteer.webworker.md).
The constructor for this class is marked as internal. Third-party code should not call the constructor directly or create subclasses that extend the `ExecutionContext` class.
## Example
A [Page](./puppeteer.page.md) can have several execution contexts:
- Each [Frame](./puppeteer.frame.md) of a [page](./puppeteer.page.md) has a "default" execution context that is always created after frame is attached to DOM. This context is returned by the [Frame.executionContext()](./puppeteer.frame.executioncontext.md) method. - Each [Chrome extensions](https://developer.chrome.com/extensions) creates additional execution contexts to isolate their code.
## Methods
| Method | Modifiers | Description |
| ------------------------------------------------------------------------------------ | --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [evaluate(pageFunction, args)](./puppeteer.executioncontext.evaluate.md) | | Evaluates the given function. |
| [evaluateHandle(pageFunction, args)](./puppeteer.executioncontext.evaluatehandle.md) | | <p>Evaluates the given function.</p><p>Unlike [evaluate](./puppeteer.executioncontext.evaluate.md), this method returns a handle to the result of the function.</p><p>This method may be better suited if the object cannot be serialized (e.g. <code>Map</code>) and requires further manipulation.</p> |
| [frame()](./puppeteer.executioncontext.frame.md) | | |
| [queryObjects(prototypeHandle)](./puppeteer.executioncontext.queryobjects.md) | | Iterates through the JavaScript heap and finds all the objects with the given prototype. |

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docs/api/puppeteer.executioncontext.queryobjects.md
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@ -1,44 +0,0 @@
---
sidebar_label: ExecutionContext.queryObjects
---
# ExecutionContext.queryObjects() method
Iterates through the JavaScript heap and finds all the objects with the given prototype.
**Signature:**
```typescript
class ExecutionContext {
queryObjects<Prototype>(
prototypeHandle: JSHandle<Prototype>
): Promise<HandleFor<Prototype[]>>;
}
```
## Parameters
| Parameter | Type | Description |
| --------------- | ---------------------------------------------------- | -------------------------------- |
| prototypeHandle | [JSHandle](./puppeteer.jshandle.md)&lt;Prototype&gt; | a handle to the object prototype |
**Returns:**
Promise&lt;[HandleFor](./puppeteer.handlefor.md)&lt;Prototype\[\]&gt;&gt;
A handle to an array of objects with the given prototype.
## Example
```ts
// Create a Map object
await page.evaluate(() => (window.map = new Map()));
// Get a handle to the Map object prototype
const mapPrototype = await page.evaluateHandle(() => Map.prototype);
// Query all map instances into an array
const mapInstances = await page.queryObjects(mapPrototype);
// Count amount of map objects in heap
const count = await page.evaluate(maps => maps.length, mapInstances);
await mapInstances.dispose();
await mapPrototype.dispose();
```

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docs/api/puppeteer.frame.executioncontext.md
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@ -1,23 +0,0 @@
---
sidebar_label: Frame.executionContext
---
# Frame.executionContext() method
> Warning: This API is now obsolete.
>
> Do not use the execution context directly.
**Signature:**
```typescript
class Frame {
executionContext(): Promise<ExecutionContext>;
}
```
**Returns:**
Promise&lt;[ExecutionContext](./puppeteer.executioncontext.md)&gt;
a promise that resolves to the frame's default execution context.

1
docs/api/puppeteer.frame.md
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@ -75,7 +75,6 @@ console.log(text);
| [content()](./puppeteer.frame.content.md) | | | | [content()](./puppeteer.frame.content.md) | | |
| [evaluate(pageFunction, args)](./puppeteer.frame.evaluate.md) | | Behaves identically to [Page.evaluate()](./puppeteer.page.evaluate.md) except it's run within the the context of this frame. | | [evaluate(pageFunction, args)](./puppeteer.frame.evaluate.md) | | Behaves identically to [Page.evaluate()](./puppeteer.page.evaluate.md) except it's run within the the context of this frame. |
| [evaluateHandle(pageFunction, args)](./puppeteer.frame.evaluatehandle.md) | | Behaves identically to [Page.evaluateHandle()](./puppeteer.page.evaluatehandle.md) except it's run within the context of this frame. | | [evaluateHandle(pageFunction, args)](./puppeteer.frame.evaluatehandle.md) | | Behaves identically to [Page.evaluateHandle()](./puppeteer.page.evaluatehandle.md) except it's run within the context of this frame. |
| [executionContext()](./puppeteer.frame.executioncontext.md) | | |
| [focus(selector)](./puppeteer.frame.focus.md) | | Focuses the first element that matches the <code>selector</code>. | | [focus(selector)](./puppeteer.frame.focus.md) | | Focuses the first element that matches the <code>selector</code>. |
| [goto(url, options)](./puppeteer.frame.goto.md) | | Navigates a frame to the given url. | | [goto(url, options)](./puppeteer.frame.goto.md) | | Navigates a frame to the given url. |
| [hover(selector)](./puppeteer.frame.hover.md) | | Hovers the pointer over the center of the first element that matches the <code>selector</code>. | | [hover(selector)](./puppeteer.frame.hover.md) | | Hovers the pointer over the center of the first element that matches the <code>selector</code>. |

19
docs/api/puppeteer.jshandle.executioncontext.md
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@ -1,19 +0,0 @@
---
sidebar_label: JSHandle.executionContext
---
# JSHandle.executionContext() method
**Signature:**
```typescript
class JSHandle {
executionContext(): ExecutionContext;
}
```
**Returns:**
[ExecutionContext](./puppeteer.executioncontext.md)
The execution context the handle belongs to.

1
docs/api/puppeteer.jshandle.md
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@ -40,7 +40,6 @@ const windowHandle = await page.evaluateHandle(() => window);
| [dispose()](./puppeteer.jshandle.dispose.md) | | Releases the object referenced by the handle for garbage collection. | | [dispose()](./puppeteer.jshandle.dispose.md) | | Releases the object referenced by the handle for garbage collection. |
| [evaluate(pageFunction, args)](./puppeteer.jshandle.evaluate.md) | | Evaluates the given function with the current handle as its first argument. | | [evaluate(pageFunction, args)](./puppeteer.jshandle.evaluate.md) | | Evaluates the given function with the current handle as its first argument. |
| [evaluateHandle(pageFunction, args)](./puppeteer.jshandle.evaluatehandle.md) | | Evaluates the given function with the current handle as its first argument. | | [evaluateHandle(pageFunction, args)](./puppeteer.jshandle.evaluatehandle.md) | | Evaluates the given function with the current handle as its first argument. |
| [executionContext()](./puppeteer.jshandle.executioncontext.md) | | |
| [getProperties()](./puppeteer.jshandle.getproperties.md) | | Gets a map of handles representing the properties of the current handle. | | [getProperties()](./puppeteer.jshandle.getproperties.md) | | Gets a map of handles representing the properties of the current handle. |
| [getProperty(propertyName)](./puppeteer.jshandle.getproperty.md) | | Fetches a single property from the referenced object. | | [getProperty(propertyName)](./puppeteer.jshandle.getproperty.md) | | Fetches a single property from the referenced object. |
| [getProperty(propertyName)](./puppeteer.jshandle.getproperty_1.md) | | | | [getProperty(propertyName)](./puppeteer.jshandle.getproperty_1.md) | | |

4
docs/api/puppeteer.page.queryobjects.md
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@ -28,10 +28,6 @@ Promise&lt;[JSHandle](./puppeteer.jshandle.md)&lt;Prototype\[\]&gt;&gt;
Promise which resolves to a handle to an array of objects with this prototype. Promise which resolves to a handle to an array of objects with this prototype.
## Remarks
Shortcut for [page.mainFrame().executionContext().queryObjects(prototypeHandle)](./puppeteer.executioncontext.queryobjects.md).
## Example ## Example
```ts ```ts

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docs/api/puppeteer.webworker.executioncontext.md
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@ -1,23 +0,0 @@
---
sidebar_label: WebWorker.executionContext
---
# WebWorker.executionContext() method
> Warning: This API is now obsolete.
>
> Do not use directly.
**Signature:**
```typescript
class WebWorker {
executionContext(): Promise<ExecutionContext>;
}
```
**Returns:**
Promise&lt;[ExecutionContext](./puppeteer.executioncontext.md)&gt;
The ExecutionContext the web worker runs in.

1
docs/api/puppeteer.webworker.md
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@ -42,5 +42,4 @@ for (const worker of page.workers()) {
| ----------------------------------------------------------------------------- | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | ----------------------------------------------------------------------------- | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [evaluate(pageFunction, args)](./puppeteer.webworker.evaluate.md) | | If the function passed to the <code>worker.evaluate</code> returns a Promise, then <code>worker.evaluate</code> would wait for the promise to resolve and return its value. If the function passed to the <code>worker.evaluate</code> returns a non-serializable value, then <code>worker.evaluate</code> resolves to <code>undefined</code>. DevTools Protocol also supports transferring some additional values that are not serializable by <code>JSON</code>: <code>-0</code>, <code>NaN</code>, <code>Infinity</code>, <code>-Infinity</code>, and bigint literals. Shortcut for <code>await worker.executionContext()).evaluate(pageFunction, ...args)</code>. | | [evaluate(pageFunction, args)](./puppeteer.webworker.evaluate.md) | | If the function passed to the <code>worker.evaluate</code> returns a Promise, then <code>worker.evaluate</code> would wait for the promise to resolve and return its value. If the function passed to the <code>worker.evaluate</code> returns a non-serializable value, then <code>worker.evaluate</code> resolves to <code>undefined</code>. DevTools Protocol also supports transferring some additional values that are not serializable by <code>JSON</code>: <code>-0</code>, <code>NaN</code>, <code>Infinity</code>, <code>-Infinity</code>, and bigint literals. Shortcut for <code>await worker.executionContext()).evaluate(pageFunction, ...args)</code>. |
| [evaluateHandle(pageFunction, args)](./puppeteer.webworker.evaluatehandle.md) | | The only difference between <code>worker.evaluate</code> and <code>worker.evaluateHandle</code> is that <code>worker.evaluateHandle</code> returns in-page object (JSHandle). If the function passed to the <code>worker.evaluateHandle</code> returns a <code>Promise</code>, then <code>worker.evaluateHandle</code> would wait for the promise to resolve and return its value. Shortcut for <code>await worker.executionContext()).evaluateHandle(pageFunction, ...args)</code> | | [evaluateHandle(pageFunction, args)](./puppeteer.webworker.evaluatehandle.md) | | The only difference between <code>worker.evaluate</code> and <code>worker.evaluateHandle</code> is that <code>worker.evaluateHandle</code> returns in-page object (JSHandle). If the function passed to the <code>worker.evaluateHandle</code> returns a <code>Promise</code>, then <code>worker.evaluateHandle</code> would wait for the promise to resolve and return its value. Shortcut for <code>await worker.executionContext()).evaluateHandle(pageFunction, ...args)</code> |
| [executionContext()](./puppeteer.webworker.executioncontext.md) | | |
| [url()](./puppeteer.webworker.url.md) | | | | [url()](./puppeteer.webworker.url.md) | | |

4
src/common/ExecutionContext.ts
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@ -35,8 +35,6 @@ export const EVALUATION_SCRIPT_URL = 'pptr://__puppeteer_evaluation_script__';
const SOURCE_URL_REGEX = /^[\040\t]*\/\/[@#] sourceURL=\s*(\S*?)\s*$/m; const SOURCE_URL_REGEX = /^[\040\t]*\/\/[@#] sourceURL=\s*(\S*?)\s*$/m;
/** /**
* @deprecated Do not use directly.
*
* Represents a context for JavaScript execution. * Represents a context for JavaScript execution.
* *
* @example * @example
@ -55,6 +53,8 @@ const SOURCE_URL_REGEX = /^[\040\t]*\/\/[@#] sourceURL=\s*(\S*?)\s*$/m;
* @remarks * @remarks
* Besides pages, execution contexts can be found in * Besides pages, execution contexts can be found in
* {@link WebWorker | workers}. * {@link WebWorker | workers}.
*
* @internal
*/ */
export class ExecutionContext { export class ExecutionContext {
/** /**

4
src/common/Frame.ts
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@ -398,9 +398,7 @@ export class Frame {
} }
/** /**
* @deprecated Do not use the execution context directly. * @internal
*
* @returns a promise that resolves to the frame's default execution context.
*/ */
executionContext(): Promise<ExecutionContext> { executionContext(): Promise<ExecutionContext> {
return this.worlds[MAIN_WORLD].executionContext(); return this.worlds[MAIN_WORLD].executionContext();

2
src/common/JSHandle.ts
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@ -108,7 +108,7 @@ export class JSHandle<T = unknown> {
} }
/** /**
* @returns The execution context the handle belongs to. * @internal
*/ */
executionContext(): ExecutionContext { executionContext(): ExecutionContext {
return this.#context; return this.#context;

16
src/common/Page.ts
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@ -1136,11 +1136,6 @@ export class Page extends EventEmitter {
* This method iterates the JavaScript heap and finds all objects with the * This method iterates the JavaScript heap and finds all objects with the
* given prototype. * given prototype.
* *
* @remarks
* Shortcut for
* {@link ExecutionContext.queryObjects |
* page.mainFrame().executionContext().queryObjects(prototypeHandle)}.
*
* @example * @example
* *
* ```ts * ```ts
@ -1164,7 +1159,16 @@ export class Page extends EventEmitter {
prototypeHandle: JSHandle<Prototype> prototypeHandle: JSHandle<Prototype>
): Promise<JSHandle<Prototype[]>> { ): Promise<JSHandle<Prototype[]>> {
const context = await this.mainFrame().executionContext(); const context = await this.mainFrame().executionContext();
return context.queryObjects(prototypeHandle); assert(!prototypeHandle.disposed, 'Prototype JSHandle is disposed!');
const remoteObject = prototypeHandle.remoteObject();
assert(
remoteObject.objectId,
'Prototype JSHandle must not be referencing primitive value'
);
const response = await context._client.send('Runtime.queryObjects', {
prototypeObjectId: remoteObject.objectId,
});
return createJSHandle(context, response.objects) as HandleFor<Prototype[]>;
} }
/** /**

4
src/common/WebWorker.ts
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@ -107,9 +107,7 @@ export class WebWorker extends EventEmitter {
} }
/** /**
* @deprecated Do not use directly. * @internal
*
* @returns The ExecutionContext the web worker runs in.
*/ */
async executionContext(): Promise<ExecutionContext> { async executionContext(): Promise<ExecutionContext> {
return this.#executionContext; return this.#executionContext;