BUG: candid_method macro messes up intellisense and stops it from working

[saikatdas0790]

Applying the #[candid::candid_method] macro for autogeneration of Candid in a Rust project breaks intellisense on that function. Here's a minimal reproduction:
https://github.com/saikatdas0790/ic_cdk_macro_intellisense_test

Steps to reproduce:

• Clone repo and install dependencies
• Open the project in a VS Code instance with the rust-analyzer extension installed
• Try prompting intellisense in the increment_1 and increment_2 functions
• Intellisense doesn't work in the first one with both macros but works in the second one

Here are some screenshots:

Intellisense shows generic word results here

Intellisense shows relevant results received from the Rust language server

Additional environment details:

• Running on Windows 11 with WSL 2
• VS Code stable
• rust-analyzer - official extension for Rust autocomplete

[chenyan-dfinity]

The offending code is here: https://github.com/dfinity/candid/blob/master/rust/candid_derive/src/func.rs#L17.

Will watch for a solution when rust-lang/rust#44034 is resolved.

[neeboo]

another issue related.

My Clion keeps complaining the duplicated method.

[chenyan-dfinity]

I cannot reproduce this. Did you try the latest CDK 0.10 and candid 0.9?

[neeboo]

Updates: it turns out my rustc version causing the issue. When I switch back to 1.68, the errors are gone.

I cannot reproduce this. Did you try the latest CDK 0.10 and candid 0.9?

Same thing, It's weird when I try to modify the rename and function name.
It seems the function name is randomly occupied.

[neeboo]

It seems that the issue was raised but not solved .

rust-lang/rust-analyzer#13918

[chenyan-dfinity]

In CDK 0.10, you don't need to put candid_method attribute in the code. See the migration guide: https://daviddalbusco.com/blog/automatic-candid-generation-in-rust-exploring-the-ic-cdk-v0-10-0-update/