Crate wasm_opcodes

Implementing something on top of wasmparser is slightly tedious due to the number of operations that it can parse, usually resulting in either a huge match statement, or several match statements which each process some subset of the operations and then have a catchall unreachable!() statement. This crate provides a middleground: a hierarchy of operations, split by proposal, allowing you to exhaustively match firstly on the proposal, and then secondly on the operation.

To start, use OperatorByProposal::from(op: wasmparser::Operator), or the equivalent Into implementation.

Versioning

This crate aims to match versions with wasmparser, since the code in this crate is generated from wasmparser’s supported operations.

Modules

proposals

Enums

OpCode

All possible WebAssembly instruction opcodes across all proposals supported by wasmparser.

OperatorByProposal

A hierarchy of all WebAssembly operations, split by proposal.