feat: logging in contract and non contract env

[ple1n]

No description provided.

[iduartgomez]

fails in tests:

error[E0433]: failed to resolve: could not find `freenet_stdlib` in the list of imported crates
  --> rust/src/log.rs:7:11
   |
7  |         ::freenet_stdlib::log::info(&format!($($arg)*));
   |           ^^^^^^^^^^^^^^ could not find `freenet_stdlib` in the list of imported crates
...
31 |     info!("n={}, y={:?}", 1, 2);
   |     --------------------------- in this macro invocation
   |
   = note: this error originates in the macro `info` (in Nightly builds, run with -Z macro-backtrace for more info)
help: consider importing this module
   |
1  + use crate::log;

need to use relative import from crate

[ple1n]

Does not fail on my machine.

Plus, if you change it to crate::log it will be unusable by dependencies, because IIRC macro_rules just injects code in place.

[ple1n]

rustc --version
rustc 1.92.0-nightly (fa3155a64 2025-09-30)

Also I am on nightly.

[iduartgomez]

Does not fail on my machine.

@ple1n please check CI, is failing, for this to be merged it has to pass CI

https://github.com/freenet/freenet-stdlib/actions/runs/18464415199/job/52607791262?pr=39

[ple1n]

I moved testing to examples.

I dont think it can work in crate and outside the crate simultaneously. macro v1 cant do that.

[iduartgomez]

You can absolutetly use and test regular macros within the same crate, but even if that was not the case, you can use integration tests that will run the CI pipeline instead of examples.

They just need to be defined before the tests or imported from a different module, proc_macros cannot be used within the same crate.

[iduartgomez]

We could move the you example to integration tests instead.

[ple1n]

so you are going to do it right? can we get this feature done asap.

you can commit to my branch directly

[iduartgomez]

so you are going to do it right? can we get this feature done asap.

you can commit to my branch directly

Is your PR, you have to do the changes.

[iduartgomez]

Actually just remove the example since is not doing any test really.

[ple1n]

Removed.