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Box<dyn _> #9

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49 changes: 2 additions & 47 deletions src/trace_impls.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -86,59 +86,14 @@ mod tuples {
mod boxed {
use super::*;

impl<T: Trace> Trace for Box<T> {
fn trace(&self, tracer: &mut Tracer) {
self.as_ref().trace(tracer);
}

#[inline]
fn is_type_tracked() -> bool {
T::is_type_tracked()
}

fn as_any(&self) -> Option<&dyn Any> {
Some(self)
}
}

impl Trace for Box<dyn Trace> {
fn trace(&self, tracer: &mut Tracer) {
self.as_ref().trace(tracer);
}

#[inline]
fn is_type_tracked() -> bool {
// Trait objects can have complex non-atomic structure.
true
}

fn as_any(&self) -> Option<&dyn Any> {
Some(self)
}
}

impl Trace for Box<dyn Trace + Send> {
fn trace(&self, tracer: &mut Tracer) {
self.as_ref().trace(tracer);
}

#[inline]
fn is_type_tracked() -> bool {
true
}

fn as_any(&self) -> Option<&dyn Any> {
Some(self)
}
}

impl Trace for Box<dyn Trace + Send + Sync> {
impl<T: Trace + ?Sized> Trace for Box<T> {
fn trace(&self, tracer: &mut Tracer) {
self.as_ref().trace(tracer);
}

#[inline]
fn is_type_tracked() -> bool {
// T can be `dyn _` which can have complex non-atomic structure.
true
}

Expand Down