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WebAssembly serialization/deserialization in rust

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IgorFrolov/parity-wasm

 
 

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parity-wasm

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Documentation

Rust WebAssembly format serializing/deserializing

along with experimental interpreter

extern crate parity_wasm;

let module = parity_wasm::deserialize_file("./res/cases/v1/hello.wasm");
assert_eq!(module.code_section().is_some());

let code_section = module.code_section().unwrap(); // Part of the module with functions code

println!("Function count in wasm file: {}", code_section.bodies().len());

Wabt Test suite

Interpreter and decoder supports full wabt testsuite (https://github.com/WebAssembly/testsuite), To run testsuite:

  • make sure you have all prerequisites to build wabt (since parity-wasm builds it internally using cmake, see https://github.com/WebAssembly/wabt)
  • checkout with submodules (git submodule update --init --recursive)
  • run cargo test --release --manifest-path=spec/Cargo.toml

Decoder can be fuzzed with cargo-fuzz using wasm-opt (https://github.com/WebAssembly/binaryen):

  • make sure you have all prerequisites to build binaryen and cargo-fuzz (cmake and a C++11 toolchain)
  • checkout with submodules (git submodule update --init --recursive)
  • install cargo fuzz subcommand with cargo install cargo-fuzz
  • set rustup to use a nightly toolchain, because cargo fuzz uses a rust compiler plugin: rustup override set nightly
  • run cargo fuzz run deserialize

License

parity-wasm is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), at your choice.

See LICENSE-APACHE, and LICENSE-MIT for details.

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WebAssembly serialization/deserialization in rust

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