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@assemblyscript/loader

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@assemblyscript/loader

A convenient loader for AssemblyScript modules.

  • 0.27.31
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  • npm
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1.2M
decreased by-13.59%
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What is @assemblyscript/loader?

The @assemblyscript/loader package is designed to load and instantiate WebAssembly modules compiled from AssemblyScript. It provides a convenient API for interacting with WebAssembly instances, including memory management, table imports, and handling complex data types like strings and arrays.

What are @assemblyscript/loader's main functionalities?

Instantiating WebAssembly Modules

This feature allows you to synchronously instantiate a WebAssembly module from a buffer containing the compiled binary. The second argument is an object that can contain imports required by the WebAssembly module.

const loader = require('@assemblyscript/loader');
const wasmModule = loader.instantiateSync(fs.readFileSync('myModule.wasm'), { /* imports */ });
const exports = wasmModule.exports;

Memory Management

The loader provides functions to manage memory within the WebAssembly module, such as allocating and freeing memory, and garbage collection. This is useful for managing the lifecycle of objects and preventing memory leaks.

const { __new, __pin, __unpin, __collect } = wasmModule.exports;
const ptr = __new(size, id);
__pin(ptr);
// Use the pointer
__unpin(ptr);
__collect();

Interacting with Complex Data Types

The loader offers utility functions to create and read complex data types like strings. This allows for easy passing of strings between JavaScript and WebAssembly.

const { __getString, __newString } = wasmModule.exports;
const strPtr = __newString('Hello, World!');
const str = __getString(strPtr);

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Package last updated on 12 Nov 2024

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