Problem with a declarative macro

[fecetrulo]

I couldn't make JsonSchema derive works with a macro that creates structs and a enum containing these structures. I keep getting an error cannot find value gen in this scope.

I made a gist showing a minimal example where the problem occurs.

If the JsonSchema derive is commented on macro's call, the code works just fine.

Error

error[E0425]: cannot find value `gen` in this scope
  --> src/main.rs:27:24
   |
27 |                   $inner($inner)
   |                          ^^^^^^ not found in this scope
...
36 | / _macro!(
37 | |     #[derive(Serialize, Deserialize, Debug, JsonSchema)]
38 | |     Test {
39 | |         #[derive(Serialize, Deserialize, Debug, JsonSchema)]
...  |
42 | |
43 | | );
   | |__- in this macro invocation
   |
   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

[Kixiron]

This happened to me, it seemed to occur when syn bumped from v1.0.48 to v1.0.54

[GREsau]

Thanks for the report, this is the same as #66 and will be fixed in the next version of schemars 🙂

[GREsau]

Fixed in v0.8.3 - https://crates.io/crates/schemars/0.8.3