@webassemblyjs/helper-module-context

What is @webassemblyjs/helper-module-context?

The @webassemblyjs/helper-module-context package is part of the WebAssemblyJS project, which provides tools for compiling and manipulating WebAssembly modules in JavaScript. This specific package helps manage the context of a WebAssembly module, such as its imports, exports, and other metadata, facilitating the manipulation and analysis of WebAssembly code.

What are @webassemblyjs/helper-module-context's main functionalities?

Managing Imports

This feature allows developers to retrieve and manage the import statements of a WebAssembly module. The code sample demonstrates how to obtain the context from an AST and log the module's imports.

const { getModuleContext } = require('@webassemblyjs/helper-module-context');
const ast = ...; // WebAssembly AST obtained from parsing
const context = getModuleContext(ast);
console.log(context.getImports());

Managing Exports

This feature enables the handling of export statements within a WebAssembly module. The code shows how to extract and log the exports from the module context.

const { getModuleContext } = require('@webassemblyjs/helper-module-context');
const ast = ...; // WebAssembly AST obtained from parsing
const context = getModuleContext(ast);
console.log(context.getExports());

Accessing Module Types

This functionality provides access to the types defined within a WebAssembly module, which is crucial for understanding and manipulating the module's structure. The example code fetches and displays these types.

const { getModuleContext } = require('@webassemblyjs/helper-module-context');
const ast = ...; // WebAssembly AST obtained from parsing
const context = getModuleContext(ast);
console.log(context.getTypes());

Other packages similar to @webassemblyjs/helper-module-context

wasm-parser

Similar to @webassemblyjs/helper-module-context, wasm-parser is a tool for parsing WebAssembly binaries. It focuses more on the parsing aspect rather than providing a context management system, making it less specialized in context handling but more versatile in parsing capabilities.

wasm-interpreter

This package allows for the interpretation of WebAssembly code. While it also deals with WebAssembly modules, its primary focus is on executing WebAssembly code rather than managing module context, offering a different approach compared to @webassemblyjs/helper-module-context.