Introduction

Ferricel compiles CEL (Common Expression Language) expressions into WebAssembly modules.

The produced .wasm files can then be executed in any Wasm runtime.

Components

Ferricel provides the following components:

• ferricel: a CLI tool that can be used to either compile or run a .wasm module produced by it
• ferricel-core: the pure Rust crate used by ferricel CLI. It can be used to embed a compiler or a runtime inside of your Rust program

The next sections cover in depth how to handle compilation of CEL expressions and how to run them.

Spec

The “Wasm Spec” section illustrates the low level details of the WebAssembly modules produced by the ferricel compiler.

Compilation

The ferricel CLI tool can be used to build a CEL program to WebAssembly. You can find more details here.