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@webassemblyjs/helper-wasm-bytecode

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@webassemblyjs/helper-wasm-bytecode

WASM's Bytecode constants


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1
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22,811,835
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Package description

What is @webassemblyjs/helper-wasm-bytecode?

The @webassemblyjs/helper-wasm-bytecode package is part of the WebAssemblyJS project, which provides tools for compiling, decompiling, and manipulating WebAssembly (Wasm) binaries. This specific package offers utilities for dealing with Wasm bytecode, such as parsing and generating bytecode.

What are @webassemblyjs/helper-wasm-bytecode's main functionalities?

Parsing Wasm Bytecode

This feature allows you to parse WebAssembly bytecode into a more readable and manipulable abstract syntax tree (AST) format. The code sample demonstrates how to read a Wasm file from the filesystem, parse it into an AST using the decode function, and then log the AST to the console.

"use strict";\nconst { decode } = require('@webassemblyjs/wasm-parser');\nconst fs = require('fs');\n\nconst wasmBuffer = fs.readFileSync('path/to/your.wasm');\nconst ast = decode(wasmBuffer);\nconsole.log(ast);

Generating Wasm Bytecode

This feature enables the generation of WebAssembly bytecode from an AST. The code sample shows how to read a Wasm file, parse it into an AST, generate new bytecode from the AST using the encode function, and then write the new bytecode to a file.

"use strict";\nconst { encode } = require('@webassemblyjs/wasm-gen');\nconst fs = require('fs');\nconst { decode } = require('@webassemblyjs/wasm-parser');\n\nconst wasmBuffer = fs.readFileSync('path/to/your.wasm');\nconst ast = decode(wasmBuffer);\nconst newWasmBuffer = encode(ast);\nfs.writeFileSync('path/to/output.wasm', newWasmBuffer);

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Last updated on 07 Jan 2021

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