How to print debugging information in swc-plugin？

[chenwll]

when i run cargo test , println!("hello world") does not work.
How should I print debugging information？

#[plugin_transform]
pub fn process_transform(program: Program, _metadata: TransformPluginProgramMetadata) -> Program {
    println!("hello world");
    program.fold_with(&mut as_folder(CatchClauseVisitor::new()))
}

[kdy1]

You may use cargo test -- --nocapture, or make your test fail. cargo test captures the output of tests and drop it if the test passes

[chenwll]

i use cargo test -- --nocapture，but "hello world" not print

[kdy1]

Ah, you were trying to print from Wasm plugin. You should compile it to wasi target if you want to use feature of std runtime.

[chenwll]

I'm a beginner in rust, can you tell me a little more about how to print out "hello world" when running a test case, this is my code
https://github.com/chenwll/swc_plugin/blob/master/src/lib.rs#L154

[kdy1]

#[plugin_transform] is not called for test_fixture. You should print log in the constructor function you call in the test