Derive Macro gcmodule::Trace

#[derive(Trace)]
{
    // Attributes available to this derive:
    #[trace]
}

Derive Trace implementation for a structure.

Examples

use gcmodule::{Cc, Trace};

#[derive(Trace)]
struct S1(u32, String);

#[derive(Trace)]
struct S2<T1: Trace, T2: Trace>(T1, T2, u8);

#[derive(Trace)]
struct S3<T: Trace> {
    a: S1,
    b: Option<S2<T, u8>>,

    #[trace(skip)]
    c: AlienStruct,  // c is not tracked by the collector.
}

struct AlienStruct;