Crate ink_codegen

The ink! code generation.

This module defines everything the ink! procedural macro needs in order to generate Rust code for ink! smart contracts.

We avoid structuring things via hidden or private modules, this was the ink! v1 way of doing code generation and it was bug prone and hard to maintain.

What we do instead to generate code that is hidden from users is to pack it into anonymous const (so const _: () = { … };) and connect those to the outside world with private trait implementations.

You can see how the generated code looks by installing cargo-expand and executing cargo expand --manifest-path ./integration-tests/flipper/Cargo.toml in this repository.

Modules

reflect

Definitions and utilities for ink! smart contract static reflection.

Macros

for_each_abi

Calls the given callback function once for each enabled ABI.

generate_abi_impls

Generates code for all enabled ABIs by calling the given generator function for each enabled ABI, and returns a TokenStream combining all generated ABI specific code. with the ABI as an argument.

Traits

CodeGenerator

Types for which code can be generated by this crate.

Functions

generate_code

Generates the entire code for the given ink! contract.

generate_type_spec

Generates the ink! metadata for the given type.