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Simulations of Trait Bound Canister Dev

This project contains various implementation for the same canister interface Counter.

Build and test

dfx start --clean --background
dfx deploy
dfx canister call <CANISTER_NAME> read
dfx canister call <CANISTER_NAME> inc
dfx canister call <CANISTER_NAME> read
...
dfx stop

Canisters

unit_struct

The baseline implementation which illustrates how the macro works.

build_script

Instead of calling macro, we may want to use build.rs which generate the binding in OUT_DIR.

If we want to allow bindgen configuration, build.rs is more convenient than macro.

stateful

The struct has state and the trait required methods take &self or &mut self in argument.

Note: Depends on once_cell crate to make sure that only one instance of the Canister.

async_trait

The approach can work well with async.

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