feat!: ic-cdk-bindgen rewrite

[lwshang]

SDK-1622

Description

The current API of ic-cdk-bindgen crate exposes many types from the dependency candid_parser.

This rewrite is necessary for the upcoming "Trait-Bound Canister Development" feature. which will need Candid to Rust bindgen for various targets.

The targets will be supported:

• Consumer
• Provider
• Type

Now, the main entry point to the ic-cdk-bindgen library is ic_cdk_bindgen::Builder.

This PR focuses on changing the existing bindgen for inter-canister calls. In the context of Rust CDK, such usage is named consumer.

// build.rs
fn main() {
    ic_cdk_bindgen::Builder::new("profile_rs")
        .generate_consumer()
        .unwrap();
}

Then in lib.rs of the consumer canister:

mod profile_rs {
    include!(concat!(env!("OUT_DIR"), "/consumer/profile_rs.rs"));
}
use profile_rs::{profile_rs, Profile};

#[update(name = "getSelf")]
async fn get_self() -> Profile {
    profile_rs.get_self().await.unwrap().0
}

Note

This PR is just a intermediate state of the "Trait-Bound Canister Development" feature. The base branch of this PR is not main but a dedicated bindgen_next branch.

Support for provider and type will be implemented in the following PRs.

Docs and Changelog will be added when this overall feature is completed and before merge into the main branch.

How Has This Been Tested?

examples: counter, profile

Checklist:

• [x] The title of this PR complies with Conventional Commits.
• [ ] ~I have edited the CHANGELOG accordingly.~
• [ ] ~I have made corresponding changes to the documentation.~