Plugin System

Defined in src/pipeline.rs:

IrModule → [IrPass, IrPass, ...] → IrModule → Backend → Output

• IrPass: Takes ownership of IrModule, transforms it, returns Result<IrModule, Vec<CompilerError>>. Use for optimization, specialization, or lowering. A failing pass aborts the pipeline and returns its errors.
• Backend: Borrows an IrModule, produces any Output type. Use for code generation.
• Pipeline: Chains passes with .pass(...) and drives a backend with .emit(module, &backend).

For a tour of the passes shipped in the box, see Built-in Passes.