beszel/golang-github-dop251-goja-nodejs
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Adding upstream version 0.0~git20250409.f7acab6.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-05-22 11:36:18 +02:00
parent b9b5d88025
commit 21b930d007
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
51 changed files with 11229 additions and 0 deletions
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1198
buffer/buffer.go Normal file
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/**
* Assertion helper functions for Buffer tests
*/
"use strict";
const assert = require("../../assert.js");
function assertValueRead(actual, expected) {
assert.sameValue(actual, expected, "value read does not match; ")
}
function assertBytesWritten(actual, expected) {
assert.sameValue(actual, expected, "bytesWritten does not match; ")
}
function assertBufferWriteRead(buffer, writeMethod, readMethod, value, offset = 0) {
const bytesWritten = buffer[writeMethod](value, offset);
const bytesPerElement = getBufferElementSize(writeMethod);
assertBytesWritten(bytesWritten, offset + bytesPerElement);
const readValue = buffer[readMethod](offset);
assertValueRead(readValue, value);
}
// getBufferElementSize determines the number of bytes per type based on method name
function getBufferElementSize(methodName) {
if (methodName.includes('64')) return 8;
if (methodName.includes('Double')) return 8;
if (methodName.includes('32')) return 4;
if (methodName.includes('Float')) return 4;
if (methodName.includes('16')) return 2;
if (methodName.includes('8')) return 1;
return 1;
}

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## Type definitions for the goja_nodejs buffer module.
This package contains type definitions which only include features
currently implemented by the goja_nodejs buffer module.
### Install
```shell
npm install --save-dev @dop251/types-goja_nodejs-buffer
```

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declare module "buffer" {
type ImplicitArrayBuffer<T extends WithImplicitCoercion<ArrayBufferLike>> = T extends
{ valueOf(): infer V extends ArrayBufferLike } ? V : T;
global {
interface BufferConstructor {
// see buffer.d.ts for implementation shared with all TypeScript versions
/**
* Allocates a new buffer containing the given {str}.
*
* @param str String to store in buffer.
* @param encoding encoding to use, optional. Default is 'utf8'
* @deprecated since v10.0.0 - Use `Buffer.from(string[, encoding])` instead.
*/
new(str: string, encoding?: BufferEncoding): Buffer<ArrayBuffer>;
/**
* Allocates a new buffer containing the given {array} of octets.
*
* @param array The octets to store.
* @deprecated since v10.0.0 - Use `Buffer.from(array)` instead.
*/
new(array: ArrayLike<number>): Buffer<ArrayBuffer>;
/**
* Produces a Buffer backed by the same allocated memory as
* the given {ArrayBuffer}/{SharedArrayBuffer}.
*
* @param arrayBuffer The ArrayBuffer with which to share memory.
* @deprecated since v10.0.0 - Use `Buffer.from(arrayBuffer[, byteOffset[, length]])` instead.
*/
new<TArrayBuffer extends ArrayBufferLike = ArrayBuffer>(arrayBuffer: TArrayBuffer): Buffer<TArrayBuffer>;
/**
* Allocates a new `Buffer` using an `array` of bytes in the range `0` – `255`.
* Array entries outside that range will be truncated to fit into it.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* // Creates a new Buffer containing the UTF-8 bytes of the string 'buffer'.
* const buf = Buffer.from([0x62, 0x75, 0x66, 0x66, 0x65, 0x72]);
* ```
*
* If `array` is an `Array`-like object (that is, one with a `length` property of
* type `number`), it is treated as if it is an array, unless it is a `Buffer` or
* a `Uint8Array`. This means all other `TypedArray` variants get treated as an
* `Array`. To create a `Buffer` from the bytes backing a `TypedArray`, use
* `Buffer.copyBytesFrom()`.
*
* A `TypeError` will be thrown if `array` is not an `Array` or another type
* appropriate for `Buffer.from()` variants.
*
* `Buffer.from(array)` and `Buffer.from(string)` may also use the internal
* `Buffer` pool like `Buffer.allocUnsafe()` does.
* @since v5.10.0
*/
from(array: WithImplicitCoercion<ArrayLike<number>>): Buffer<ArrayBuffer>;
/**
* This creates a view of the `ArrayBuffer` without copying the underlying
* memory. For example, when passed a reference to the `.buffer` property of a
* `TypedArray` instance, the newly created `Buffer` will share the same
* allocated memory as the `TypedArray`'s underlying `ArrayBuffer`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const arr = new Uint16Array(2);
*
* arr[0] = 5000;
* arr[1] = 4000;
*
* // Shares memory with `arr`.
* const buf = Buffer.from(arr.buffer);
*
* console.log(buf);
* // Prints: <Buffer 88 13 a0 0f>
*
* // Changing the original Uint16Array changes the Buffer also.
* arr[1] = 6000;
*
* console.log(buf);
* // Prints: <Buffer 88 13 70 17>
* ```
*
* The optional `byteOffset` and `length` arguments specify a memory range within
* the `arrayBuffer` that will be shared by the `Buffer`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const ab = new ArrayBuffer(10);
* const buf = Buffer.from(ab, 0, 2);
*
* console.log(buf.length);
* // Prints: 2
* ```
*
* A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer` or a
* `SharedArrayBuffer` or another type appropriate for `Buffer.from()`
* variants.
*
* It is important to remember that a backing `ArrayBuffer` can cover a range
* of memory that extends beyond the bounds of a `TypedArray` view. A new
* `Buffer` created using the `buffer` property of a `TypedArray` may extend
* beyond the range of the `TypedArray`:
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const arrA = Uint8Array.from([0x63, 0x64, 0x65, 0x66]); // 4 elements
* const arrB = new Uint8Array(arrA.buffer, 1, 2); // 2 elements
* console.log(arrA.buffer === arrB.buffer); // true
*
* const buf = Buffer.from(arrB.buffer);
* console.log(buf);
* // Prints: <Buffer 63 64 65 66>
* ```
* @since v5.10.0
* @param arrayBuffer An `ArrayBuffer`, `SharedArrayBuffer`, for example the
* `.buffer` property of a `TypedArray`.
* @param byteOffset Index of first byte to expose. **Default:** `0`.
* @param length Number of bytes to expose. **Default:**
* `arrayBuffer.byteLength - byteOffset`.
*/
from<TArrayBuffer extends WithImplicitCoercion<ArrayBufferLike>>(
arrayBuffer: TArrayBuffer,
byteOffset?: number,
length?: number,
): Buffer<ImplicitArrayBuffer<TArrayBuffer>>;
/**
* Creates a new `Buffer` containing `string`. The `encoding` parameter identifies
* the character encoding to be used when converting `string` into bytes.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf1 = Buffer.from('this is a tést');
* const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
*
* console.log(buf1.toString());
* // Prints: this is a tést
* console.log(buf2.toString());
* // Prints: this is a tést
* console.log(buf1.toString('latin1'));
* // Prints: this is a tést
* ```
*
* A `TypeError` will be thrown if `string` is not a string or another type
* appropriate for `Buffer.from()` variants.
*
* `Buffer.from(string)` may also use the internal `Buffer` pool like
* `Buffer.allocUnsafe()` does.
* @since v5.10.0
* @param string A string to encode.
* @param encoding The encoding of `string`. **Default:** `'utf8'`.
*/
from(string: WithImplicitCoercion<string>, encoding?: BufferEncoding): Buffer<ArrayBuffer>;
/**
* Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the`Buffer` will be zero-filled.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.alloc(5);
*
* console.log(buf);
* // Prints: <Buffer 00 00 00 00 00>
* ```
*
* If `size` is larger than {@link constants.MAX_LENGTH} or smaller than 0, `ERR_OUT_OF_RANGE` is thrown.
*
* If `fill` is specified, the allocated `Buffer` will be initialized by calling `buf.fill(fill)`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.alloc(5, 'a');
*
* console.log(buf);
* // Prints: <Buffer 61 61 61 61 61>
* ```
*
* If both `fill` and `encoding` are specified, the allocated `Buffer` will be
* initialized by calling `buf.fill(fill, encoding)`.
*
* ```js
* import { Buffer } from 'node:buffer';
*
* const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
*
* console.log(buf);
* // Prints: <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
* ```
*
* Calling `Buffer.alloc()` can be measurably slower than the alternative `Buffer.allocUnsafe()` but ensures that the newly created `Buffer` instance
* contents will never contain sensitive data from previous allocations, including
* data that might not have been allocated for `Buffer`s.
*
* A `TypeError` will be thrown if `size` is not a number.
* @since v5.10.0
* @param size The desired length of the new `Buffer`.
* @param [fill=0] A value to pre-fill the new `Buffer` with.
* @param [encoding='utf8'] If `fill` is a string, this is its encoding.
*/
alloc(size: number, fill?: string | Uint8Array | number, encoding?: BufferEncoding): Buffer<ArrayBuffer>;
}
interface Buffer<TArrayBuffer extends ArrayBufferLike = ArrayBufferLike> extends Uint8Array<TArrayBuffer> {
// see buffer.d.ts for implementation shared with all TypeScript versions
}
}
}

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{
"name": "@dop251/types-goja_nodejs-buffer",
"version": "0.0.1-rc2",
"types": "buffer.d.ts",
"scripts": {
"test": "tsc"
},
"repository": {
"type": "git",
"url": "git+https://github.com/dop251/goja_nodejs.git"
},
"dependencies": {
"@dop251/types-goja_nodejs-global": "0.0.1-rc2"
},
"devDependencies": {
"typescript": "next"
},
"private": false
}

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{
"compilerOptions": {
"module": "commonjs",
"target": "esnext",
"lib": [
"es6",
"dom"
],
"noImplicitAny": true,
"noImplicitThis": true,
"strictNullChecks": true,
"strictFunctionTypes": true,
"noEmit": true,
"forceConsistentCasingInFileNames": true
}
}