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use crate::io::{Decode, DecodeError, Encode, PathItem};
pub use wasmbin_derive::WasmbinCountable;
pub trait WasmbinCountable {}
impl<T: WasmbinCountable + Encode> Encode for [T] {
fn encode(&self, w: &mut impl std::io::Write) -> std::io::Result<()> {
self.len().encode(w)?;
for item in self {
item.encode(w)?;
}
Ok(())
}
}
impl<T> Encode for Vec<T>
where
[T]: Encode,
{
fn encode(&self, w: &mut impl std::io::Write) -> std::io::Result<()> {
self.as_slice().encode(w)
}
}
impl<T: WasmbinCountable + Decode> Decode for Vec<T> {
fn decode(r: &mut impl std::io::Read) -> Result<Self, DecodeError> {
let count = usize::decode(r)?;
(0..count)
.map(|i| T::decode(r).map_err(move |err| err.in_path(PathItem::Index(i))))
.collect()
}
}
impl_visit_for_iter!(Vec<T>);
impl<T: crate::visit::Visit> crate::visit::Visit for Option<T> {
fn visit_children<'a, VisitT: 'static, E, F: FnMut(&'a VisitT) -> Result<(), E>>(
&'a self,
f: &mut F,
) -> Result<(), crate::visit::VisitError<E>> {
if let Some(v) = self {
v.visit_child(f)?;
}
Ok(())
}
fn visit_children_mut<VisitT: 'static, E, F: FnMut(&mut VisitT) -> Result<(), E>>(
&mut self,
f: &mut F,
) -> Result<(), crate::visit::VisitError<E>> {
if let Some(v) = self {
v.visit_child_mut(f)?;
}
Ok(())
}
}