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#[cfg(feature = "rkyv-bytecheck-impl")]
use rkyv_latest as rkyv;
#[cfg_attr(not(target_arch = "wasm32"), allow(unused))]
#[cfg(any(feature = "__plugin_rt", feature = "__plugin_mode"))]
use swc_common::plugin::serialized::{
deserialize_from_ptr, deserialize_from_ptr_into_fallible, PluginSerializedBytes,
};
#[cfg_attr(
feature = "__rkyv",
derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
)]
pub struct AllocatedBytesPtr(pub u32, pub u32);
#[cfg(not(feature = "__rkyv"))]
fn read_returned_result_from_host_inner<F>(f: F) -> Option<AllocatedBytesPtr> {
unimplemented!("Plugin proxy does not work without serialization support")
}
#[cfg(all(feature = "__rkyv", feature = "__plugin_mode", target_arch = "wasm32"))]
#[tracing::instrument(level = "info", skip_all)]
fn read_returned_result_from_host_inner<F>(f: F) -> Option<AllocatedBytesPtr>
where
F: FnOnce(u32) -> u32,
{
let allocated_bytes_ptr = AllocatedBytesPtr(0, 0);
let serialized_allocated_bytes_ptr = PluginSerializedBytes::try_serialize(&allocated_bytes_ptr)
.expect("Should able to serialize AllocatedBytesPtr");
let (serialized_allocated_bytes_raw_ptr, serialized_allocated_bytes_raw_ptr_size) =
serialized_allocated_bytes_ptr.as_ptr();
let ret = f(serialized_allocated_bytes_raw_ptr as _);
if ret == 0 {
return None;
}
Some(unsafe {
deserialize_from_ptr(
serialized_allocated_bytes_raw_ptr,
serialized_allocated_bytes_raw_ptr_size
.try_into()
.expect("Should able to convert ptr length"),
)
.expect("Should able to deserialize AllocatedBytesPtr")
})
}
#[cfg(not(feature = "__rkyv"))]
pub fn read_returned_result_from_host<F, R>(f: F) -> Option<R> {
unimplemented!("Plugin proxy does not work without serialization support")
}
#[cfg(all(feature = "__rkyv", feature = "__plugin_mode", target_arch = "wasm32"))]
#[cfg_attr(not(target_arch = "wasm32"), allow(unused))]
#[tracing::instrument(level = "info", skip_all)]
pub fn read_returned_result_from_host<F, R>(f: F) -> Option<R>
where
F: FnOnce(u32) -> u32,
R: rkyv::Archive,
R::Archived: rkyv::Deserialize<R, rkyv::de::deserializers::SharedDeserializeMap>,
{
let allocated_returned_value_ptr = read_returned_result_from_host_inner(f);
allocated_returned_value_ptr.map(|allocated_returned_value_ptr| unsafe {
deserialize_from_ptr(
allocated_returned_value_ptr.0 as _,
allocated_returned_value_ptr.1,
)
.expect("Returned value should be serializable")
})
}
#[cfg(not(feature = "__rkyv"))]
pub fn read_returned_result_from_host_fallible<F, R>(f: F) -> Option<R> {
unimplemented!("Plugin proxy does not work without serialization support")
}
#[cfg(all(feature = "__rkyv", target_arch = "wasm32"))]
#[tracing::instrument(level = "info", skip_all)]
pub fn read_returned_result_from_host_fallible<F, R>(f: F) -> Option<R>
where
F: FnOnce(u32) -> u32,
R: rkyv::Archive,
R::Archived: rkyv::Deserialize<R, rkyv::de::deserializers::SharedDeserializeMap>,
{
let allocated_bytes_ptr = AllocatedBytesPtr(0, 0);
let serialized_allocated_bytes_ptr = PluginSerializedBytes::try_serialize(&allocated_bytes_ptr)
.expect("Should able to serialize AllocatedBytesPtr");
let (serialized_allocated_bytes_raw_ptr, serialized_allocated_bytes_raw_ptr_size) =
serialized_allocated_bytes_ptr.as_ptr();
let ret = f(serialized_allocated_bytes_raw_ptr as _);
if ret == 0 {
return None;
}
let allocated_returned_value_ptr: AllocatedBytesPtr = unsafe {
deserialize_from_ptr(
serialized_allocated_bytes_raw_ptr,
serialized_allocated_bytes_raw_ptr_size as u32,
)
.expect("Should able to deserialize AllocatedBytesPtr")
};
Some(unsafe {
deserialize_from_ptr_into_fallible(
allocated_returned_value_ptr.0 as _,
allocated_returned_value_ptr.1,
)
.expect("Returned value should be serializable")
})
}